AU2070297A

AU2070297A – An improved gps receiver utilizing a communication link
– Google Patents

AU2070297A – An improved gps receiver utilizing a communication link
– Google Patents
An improved gps receiver utilizing a communication link

Info

Publication number
AU2070297A

AU2070297A
AU20702/97A
AU2070297A
AU2070297A
AU 2070297 A
AU2070297 A
AU 2070297A
AU 20702/97 A
AU20702/97 A
AU 20702/97A
AU 2070297 A
AU2070297 A
AU 2070297A
AU 2070297 A
AU2070297 A
AU 2070297A
Authority
AU
Australia
Prior art keywords
communication link
gps receiver
receiver utilizing
improved gps
improved
Prior art date
1996-03-08
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Abandoned

Application number
AU20702/97A
Inventor
Norman F. Krasner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

SnapTrack Inc

Original Assignee
SnapTrack Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1996-03-08
Filing date
1997-03-07
Publication date
1997-09-22

1996-03-08
Priority claimed from US08/612,582
external-priority
patent/US5874914A/en

1997-03-07
Application filed by SnapTrack Inc
filed
Critical
SnapTrack Inc

1997-09-22
Publication of AU2070297A
publication
Critical
patent/AU2070297A/en

Status
Abandoned
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04B—TRANSMISSION

H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 – H04B13/00; Details of transmission systems not characterised by the medium used for transmission

H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain

H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO

G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers

G01S19/05—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO

G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers

G01S19/05—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data

G01S19/06—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data employing an initial estimate of the location of the receiver as aiding data or in generating aiding data

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO

G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers

G01S19/09—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing processing capability normally carried out by the receiver

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO

G01S19/13—Receivers

G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements

G01S19/235—Calibration of receiver components

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO

G01S19/13—Receivers

G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system

G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS

G01S19/252—Employing an initial estimate of location in generating assistance data

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO

G01S19/13—Receivers

G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system

G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS

G01S19/254—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to Doppler shift of satellite signals

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO

G01S19/13—Receivers

G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system

G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS

G01S19/256—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to timing, e.g. time of week, code phase, timing offset

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO

G01S19/13—Receivers

G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system

G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS

G01S19/258—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to the satellite constellation, e.g. almanac, ephemeris data, lists of satellites in view

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO

G01S19/13—Receivers

G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system

G01S19/29—Acquisition or tracking or demodulation of signals transmitted by the system carrier including Doppler, related

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO

G01S19/13—Receivers

G01S19/34—Power consumption

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO

G01S19/13—Receivers

G01S19/35—Constructional details or hardware or software details of the signal processing chain

G01S19/37—Hardware or software details of the signal processing chain

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system

G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO

G01S19/42—Determining position

G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement

G01S19/46—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations

G01S5/0009—Transmission of position information to remote stations

G01S5/0018—Transmission from mobile station to base station

G01S5/0036—Transmission from mobile station to base station of measured values, i.e. measurement on mobile and position calculation on base station

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations

G01S5/0009—Transmission of position information to remote stations

G01S5/009—Transmission of differential positioning data to mobile

H—ELECTRICITY

H01—ELECTRIC ELEMENTS

H01Q—ANTENNAS, i.e. RADIO AERIALS

H01Q1/00—Details of, or arrangements associated with, antennas

H01Q1/27—Adaptation for use in or on movable bodies

H01Q1/273—Adaptation for carrying or wearing by persons or animals

H—ELECTRICITY

H01—ELECTRIC ELEMENTS

H01Q—ANTENNAS, i.e. RADIO AERIALS

H01Q21/00—Antenna arrays or systems

H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS

H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies

H03J7/02—Automatic frequency control

H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS

H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies

H03J7/02—Automatic frequency control

H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant

H03J7/047—Automatic frequency control using an auxiliary signal, e.g. low frequency scanning of the locking range or superimposing a special signal on the input signal

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS

H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies

H03J7/02—Automatic frequency control

H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant

H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04B—TRANSMISSION

H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 – H04B13/00; Details of transmission systems not characterised by the medium used for transmission

H04B1/06—Receivers

H04B1/16—Circuits

H04B1/26—Circuits for superheterodyne receivers

H04B1/28—Circuits for superheterodyne receivers the receiver comprising at least one semiconductor device having three or more electrodes

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04B—TRANSMISSION

H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 – H04B13/00; Details of transmission systems not characterised by the medium used for transmission

H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving

H04B1/3805—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving with built-in auxiliary receivers

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems

G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO

G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers

G01S19/10—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals

G01S19/11—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals wherein the cooperating elements are pseudolites or satellite radio beacon positioning system signal repeaters

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations

G01S2205/001—Transmission of position information to remote stations

G01S2205/008—Transmission of position information to remote stations using a mobile telephone network

G—PHYSICS

G01—MEASURING; TESTING

G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations

G01S5/0009—Transmission of position information to remote stations

G01S5/0045—Transmission from base station to mobile station

G—PHYSICS

G06—COMPUTING; CALCULATING OR COUNTING

G06F—ELECTRIC DIGITAL DATA PROCESSING

G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity

G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity

G06F2221/2111—Location-sensitive, e.g. geographical location, GPS

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER

H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing

H03D7/16—Multiple-frequency-changing

H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade

H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS

H03J2200/00—Indexing scheme relating to tuning resonant circuits and selecting resonant circuits

H03J2200/11—Cellular receiver, e.g. GSM, combined with a GPS receiver

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04B—TRANSMISSION

H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 – H04B13/00; Details of transmission systems not characterised by the medium used for transmission

AU20702/97A
1996-03-08
1997-03-07
An improved gps receiver utilizing a communication link

Abandoned

AU2070297A
(en)

Applications Claiming Priority (5)

Application Number
Priority Date
Filing Date
Title

US08/612,582

US5874914A
(en)

1995-10-09
1996-03-08
GPS receiver utilizing a communication link

US08612582

1996-03-08

US08/759,523

US5841396A
(en)

1996-03-08
1996-12-04
GPS receiver utilizing a communication link

US08759523

1996-12-04

PCT/US1997/003512

WO1997033382A1
(en)

1996-03-08
1997-03-07
An improved gps receiver utilizing a communication link

Publications (1)

Publication Number
Publication Date

AU2070297A
true

AU2070297A
(en)

1997-09-22

Family
ID=27086799
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU20702/97A
Abandoned

AU2070297A
(en)

1996-03-08
1997-03-07
An improved gps receiver utilizing a communication link

Country Status (9)

Country
Link

US
(3)

US5841396A
(en)

EP
(3)

EP2285018A3
(en)

JP
(3)

JP2000506348A
(en)

AU
(1)

AU2070297A
(en)

DE
(1)

DE69738213T2
(en)

DK
(1)

DK0885492T3
(en)

ES
(2)

ES2296306T3
(en)

PT
(1)

PT885492E
(en)

WO
(1)

WO1997033382A1
(en)

Families Citing this family (488)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US10361802B1
(en)

1999-02-01
2019-07-23
Blanding Hovenweep, Llc
Adaptive pattern recognition based control system and method

US8352400B2
(en)

1991-12-23
2013-01-08
Hoffberg Steven M
Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore

US5841396A
(en)

1996-03-08
1998-11-24
Snaptrack, Inc.
GPS receiver utilizing a communication link

US5884214A
(en)

1996-09-06
1999-03-16
Snaptrack, Inc.
GPS receiver and method for processing GPS signals

US6208290B1
(en)

1996-03-08
2001-03-27
Snaptrack, Inc.
GPS receiver utilizing a communication link

US7092369B2
(en)

1995-11-17
2006-08-15
Symbol Technologies, Inc.
Communications network with wireless gateways for mobile terminal access

US8090598B2
(en)

1996-01-29
2012-01-03
Progressive Casualty Insurance Company
Monitoring system for determining and communicating a cost of insurance

US8140358B1
(en)

1996-01-29
2012-03-20
Progressive Casualty Insurance Company
Vehicle monitoring system

US6133874A
(en)

*

1996-03-08
2000-10-17
Snaptrack, Inc.
Method and apparatus for acquiring satellite positioning system signals

GB9615771D0
(en)

*

1996-07-26
1996-09-04
Univ Brunel
Navigation system

WO1998010307A1
(en)

1996-09-09
1998-03-12
Dennis Jay Dupray
Location of a mobile station

US9134398B2
(en)

1996-09-09
2015-09-15
Tracbeam Llc
Wireless location using network centric location estimators

US6236365B1
(en)

1996-09-09
2001-05-22
Tracbeam, Llc
Location of a mobile station using a plurality of commercial wireless infrastructures

US6169789B1
(en)

*

1996-12-16
2001-01-02
Sanjay K. Rao
Intelligent keyboard system

US6377209B1
(en)

*

1997-02-03
2002-04-23
Snaptrack, Inc.
Method and apparatus for satellite positioning system (SPS) time measurement

US6215442B1
(en)

*

1997-02-03
2001-04-10
Snaptrack, Inc.
Method and apparatus for determining time in a satellite positioning system

US6215441B1
(en)

*

1997-04-15
2001-04-10
Snaptrack, Inc.
Satellite positioning reference system and method

US6771629B1
(en)

1999-01-15
2004-08-03
Airbiquity Inc.
In-band signaling for synchronization in a voice communications network

CN1310555C
(en)

*

1997-05-19
2007-04-11
爱尔比奎特公司
System and method to communicate time stamped, 3-axis geo-position data within telecommunication networks

US6690681B1
(en)

1997-05-19
2004-02-10
Airbiquity Inc.
In-band signaling for data communications over digital wireless telecommunications network

US6493338B1
(en)

*

1997-05-19
2002-12-10
Airbiquity Inc.
Multichannel in-band signaling for data communications over digital wireless telecommunications networks

US6560461B1
(en)

1997-08-04
2003-05-06
Mundi Fomukong
Authorized location reporting paging system

US6041222A
(en)

*

1997-09-08
2000-03-21
Ericsson Inc.
Systems and methods for sharing reference frequency signals within a wireless mobile terminal between a wireless transceiver and a global positioning system receiver

US6531982B1
(en)

1997-09-30
2003-03-11
Sirf Technology, Inc.
Field unit for use in a GPS system

US5949372A
(en)

*

1997-10-03
1999-09-07
Trimble Navigation Limited
Signal injection for calibration of pseudo-range errors in satellite positioning system receivers

US6070078A
(en)

*

1997-10-15
2000-05-30
Ericsson Inc.
Reduced global positioning system receiver code shift search space for a cellular telephone system

US6327471B1
(en)

1998-02-19
2001-12-04
Conexant Systems, Inc.
Method and an apparatus for positioning system assisted cellular radiotelephone handoff and dropoff

US6081229A
(en)

*

1998-03-17
2000-06-27
Qualcomm Incorporated
System and method for determining the position of a wireless CDMA transceiver

US5982823A
(en)

*

1998-03-17
1999-11-09
Northrop Grumman Corp
Direct frequency selection and down-conversion for digital receivers

US6348744B1
(en)

1998-04-14
2002-02-19
Conexant Systems, Inc.
Integrated power management module

US5999124A
(en)

*

1998-04-22
1999-12-07
Snaptrack, Inc,
Satellite positioning system augmentation with wireless communication signals

US6122506A
(en)

*

1998-05-04
2000-09-19
Trimble Navigation Limited
GSM cellular telephone and GPS receiver combination

US6104338A
(en)

*

1998-05-04
2000-08-15
Snaptrack, Inc.
Method and apparatus for operating a satellite positioning system receiver

US6061018A
(en)

*

1998-05-05
2000-05-09
Snaptrack, Inc.
Method and system for using altitude information in a satellite positioning system

US6324159B1
(en)

*

1998-05-06
2001-11-27
Sirius Communications N.V.
Method and apparatus for code division multiple access communication with increased capacity through self-noise reduction

US6636740B1
(en)

1998-06-16
2003-10-21
Ericsson Inc.
Apparatus and methods for position computation based on broadcast initialization data

US6313786B1
(en)

*

1998-07-02
2001-11-06
Snaptrack, Inc.
Method and apparatus for measurement processing of satellite positioning system (SPS) signals

US6204808B1
(en)

1998-08-13
2001-03-20
Ericsson Inc.
Method and system for aiding GPS receivers via a cellular or PCS network

US6188351B1
(en)

1998-08-13
2001-02-13
Ericsson Inc.
Method for improving signal acquistion in a global positioning system receiver

US6141570A
(en)

*

1998-08-26
2000-10-31
Ericsson Inc.
System and method for conserving battery energy in a wireless telephone with an integral global positioning system

US6067045A
(en)

1998-09-01
2000-05-23
Hughes Electronics Corporation
Communication network initialization apparatus and method for fast GPS-based positioning

US7711038B1
(en)

1998-09-01
2010-05-04
Sirf Technology, Inc.
System and method for despreading in a spread spectrum matched filter

US7545854B1
(en)

1998-09-01
2009-06-09
Sirf Technology, Inc.
Doppler corrected spread spectrum matched filter

US6515617B1
(en)

*

1998-09-01
2003-02-04
Hughes Electronics Corporation
Method and system for position determination using geostationary earth orbit satellite

IL131446A0
(en)

*

1998-09-01
2001-01-28
Hughes Electronics Corp
Communication network initialization apparatus and method for fast gps-based positioning

US6327473B1
(en)

*

1998-09-08
2001-12-04
Qualcomm Incorporated
Method and apparatus for increasing the sensitivity of a global positioning satellite receiver

US6665539B2
(en)

*

1998-09-09
2003-12-16
Qualcomm Inc.
Position location with low tolerance oscillator

US6323805B1
(en)

*

1998-09-09
2001-11-27
Qualcomm, Inc.
Data boundary aware base station assisted position location

US6208292B1
(en)

*

1998-09-09
2001-03-27
Qualcomm Incorporated
Position location with low tolerance oscillator

US6222483B1
(en)

*

1998-09-29
2001-04-24
Nokia Mobile Phones Limited
GPS location for mobile phones using the internet

US6693953B2
(en)

1998-09-30
2004-02-17
Skyworks Solutions, Inc.
Adaptive wireless communication receiver

US6963626B1
(en)

*

1998-10-02
2005-11-08
The Board Of Trustees Of The Leland Stanford Junior University
Noise-reducing arrangement and method for signal processing

US6415154B1
(en)

*

1998-10-06
2002-07-02
Ericsson Inc.
Method and apparatus for communicating auxilliary information and location information between a cellular telephone network and a global positioning system receiver for reducing code shift search time of the receiver

US6229478B1
(en)

*

1998-11-05
2001-05-08
Trimble Navigation Limited
Near-real time DGPS network and server system

US6321090B1
(en)

*

1998-11-06
2001-11-20
Samir S. Soliman
Mobile communication system with position detection to facilitate hard handoff

US6205400B1
(en)

*

1998-11-27
2001-03-20
Ching-Fang Lin
Vehicle positioning and data integrating method and system thereof

US7215967B1
(en)

*

1998-12-22
2007-05-08
Telefonaktiebolaget Lm Ericsson (Publ)
System and method for fast cold start of a GPS receiver in a telecommunications environment

US6449485B1
(en)

1999-01-22
2002-09-10
International Business Machines Corporation
Technique for mobile wireless device location

US7904187B2
(en)

1999-02-01
2011-03-08
Hoffberg Steven M
Internet appliance system and method

US6606349B1
(en)

1999-02-04
2003-08-12
Sirf Technology, Inc.
Spread spectrum receiver performance improvement

US6448925B1
(en)

1999-02-04
2002-09-10
Conexant Systems, Inc.
Jamming detection and blanking for GPS receivers

US6058338A
(en)

*

1999-02-12
2000-05-02
Qualcomm Incorporated
Method and apparatus for efficient GPS assistance in a communication system

GB2347035B
(en)

1999-02-16
2003-10-08
Symmetricom Inc
Positioning system

US20020026321A1
(en)

*

1999-02-26
2002-02-28
Sadeg M. Faris
Internet-based system and method for fairly and securely enabling timed-constrained competition using globally time-sychronized client subsystems and information servers having microsecond client-event resolution

US6067503A
(en)

*

1999-03-24
2000-05-23
Rockwell Collins, Inc.
Method and apparatus for compensating unexpected frequency shifts in positioning receivers

US6304216B1
(en)

1999-03-30
2001-10-16
Conexant Systems, Inc.
Signal detector employing correlation analysis of non-uniform and disjoint sample segments

US6577271B1
(en)

1999-03-30
2003-06-10
Sirf Technology, Inc
Signal detector employing coherent integration

US6453237B1
(en)

1999-04-23
2002-09-17
Global Locate, Inc.
Method and apparatus for locating and providing services to mobile devices

US6411892B1
(en)

2000-07-13
2002-06-25
Global Locate, Inc.
Method and apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris

US9020756B2
(en)

*

1999-04-23
2015-04-28
Global Locate, Inc.
Method and apparatus for processing satellite positioning system signals

US6829534B2
(en)

1999-04-23
2004-12-07
Global Locate, Inc.
Method and apparatus for performing timing synchronization

US7053824B2
(en)

*

2001-11-06
2006-05-30
Global Locate, Inc.
Method and apparatus for receiving a global positioning system signal using a cellular acquisition signal

JP2000310673A
(en)

*

1999-04-26
2000-11-07
Matsushita Electric Ind Co Ltd
Gps receiver

US6301545B1
(en)

*

1999-04-30
2001-10-09
Sirf Technology, Inc.
Global positioning system tag system

US7372888B1
(en)

*

1999-05-10
2008-05-13
Agilent Technologies Inc.
Method and apparatus for software reconfigurable communication transmission/reception and navigation signal reception

JP2002544706A
(en)

*

1999-05-10
2002-12-24
シリウス コミュニカション エヌ.ヴイ.

Method and apparatus for fast software reconfigurable code division multiple access communication

US6351486B1
(en)

1999-05-25
2002-02-26
Conexant Systems, Inc.
Accelerated selection of a base station in a wireless communication system

JP2001021637A
(en)

*

1999-07-07
2001-01-26
Mitsubishi Electric Corp
Apparatus and method for measurement of position

JP2003505669A
(en)

*

1999-07-20
2003-02-12
クゥアルコム・インコーポレイテッド

Method for determining changes in communication signals and using this information to improve SPS signal reception and processing

US7327779B1
(en)

1999-07-23
2008-02-05
Agilent Technologies, Inc.
Method and apparatus for high-speed software reconfigurable code division multiple access communication

US20050026589A1
(en)

1999-07-29
2005-02-03
Bryan Holland
Remote locator system using A E911-enabled wireless system

US6321091B1
(en)

*

1999-07-29
2001-11-20
Bryan Holland
Portable locator system and method

US6278403B1
(en)

1999-09-17
2001-08-21
Sirf Technology, Inc.
Autonomous hardwired tracking loop coprocessor for GPS and WAAS receiver

US6487393B1
(en)

*

1999-10-04
2002-11-26
General Electric Company
Method for data exchange with a mobile asset considering communication link quality

US6223105B1
(en)

*

1999-10-14
2001-04-24
Seagull Technology, Inc.
System for determining the orientation in space of a moving body relative to the earth

JP2001116821A
(en)

*

1999-10-15
2001-04-27
Sony Corp
Method of positioning gps, and device for receiving gps

US6313787B1
(en)

*

1999-11-12
2001-11-06
Motorola, Inc.
Method and apparatus for assisted GPS protocol

US6175329B1
(en)

*

1999-11-22
2001-01-16
University Of North Carolina – Chapel Hill
Automatic emergency and position indicator

US6526322B1
(en)

1999-12-16
2003-02-25
Sirf Technology, Inc.
Shared memory architecture in GPS signal processing

US6295023B1
(en)

2000-01-21
2001-09-25
Ericsson Inc.
Methods, mobile stations and systems for acquiring global positioning system timing information

US20010039192A1
(en)

*

2000-01-27
2001-11-08
Osterling Jacob Kristian
Time synchronization of radio networks

AU2001235001A1
(en)

2000-02-11
2001-08-20
Richard A. Geving
Device and method for transmitting vehicle position

US6429811B1
(en)

2000-02-15
2002-08-06
Motorola, Inc.
Method and apparatus for compressing GPS satellite broadcast message information

GB0004371D0
(en)

2000-02-24
2000-04-12
Koninkl Philips Electronics Nv
GPS receiver and mobile unit incorporating the same

US6501420B2
(en)

*

2000-02-24
2002-12-31
Koninklijke Philips Electronics N.V.
Mobile cellular telephone comprising a GPS receiver

US7218938B1
(en)

2002-04-24
2007-05-15
Chung Lau
Methods and apparatus to analyze and present location information

US6975941B1
(en)

*

2002-04-24
2005-12-13
Chung Lau
Method and apparatus for intelligent acquisition of position information

US7403972B1
(en)

2002-04-24
2008-07-22
Ip Venture, Inc.
Method and system for enhanced messaging

US7212829B1
(en)

*

2000-02-28
2007-05-01
Chung Lau
Method and system for providing shipment tracking and notifications

US7366522B2
(en)

2000-02-28
2008-04-29
Thomas C Douglass
Method and system for location tracking

US7321774B1
(en)

2002-04-24
2008-01-22
Ipventure, Inc.
Inexpensive position sensing device

JP4543480B2
(en)

*

2000-03-02
2010-09-15
ソニー株式会社

GPS receiver and GPS positioning method

US7173957B2
(en)

*

2000-03-13
2007-02-06
Pri Research & Development Corp.
Efficient epoch processing in multichannel global positioning system signal receiver

US7184461B2
(en)

*

2000-03-13
2007-02-27
Pri Research & Development Corp.
High speed precision pseudo random noise shift control for fast multiple channel global positioning system signal re-tracking

US6965631B2
(en)

*

2000-03-13
2005-11-15
Pri Research & Development Corp.
Low power passive correlators for multichannel global positioning system signal receiver

US6633621B1
(en)

2000-03-20
2003-10-14
Motorola, Inc.
Apparatus and method for synchronizing a clock using a phase-locked loop circuit

US6388612B1
(en)

*

2000-03-26
2002-05-14
Timothy J Neher
Global cellular position tracking device

US6609005B1
(en)

*

2000-03-28
2003-08-19
Leap Wireless International, Inc.
System and method for displaying the location of a wireless communications device wiring a universal resource locator

US6839547B2
(en)

*

2000-03-30
2005-01-04
Cellguide Ltd.
Enhanced GPS receiver utilizing wireless infrastructure

US6952440B1
(en)

2000-04-18
2005-10-04
Sirf Technology, Inc.
Signal detector employing a Doppler phase correction system

US6788655B1
(en)

2000-04-18
2004-09-07
Sirf Technology, Inc.
Personal communications device with ratio counter

US7082292B2
(en)

*

2000-04-18
2006-07-25
Sirf Technology, Inc.
Mobile communications device with GPS receiver and common clock source

US6850557B1
(en)

*

2000-04-18
2005-02-01
Sirf Technology, Inc.
Signal detector and method employing a coherent accumulation system to correlate non-uniform and disjoint sample segments

US6931055B1
(en)

2000-04-18
2005-08-16
Sirf Technology, Inc.
Signal detector employing a doppler phase correction system

US6650879B1
(en)

2000-04-18
2003-11-18
Sirf Technology, Inc.
Personal communications device with GPS receiver and common clock source

US6714158B1
(en)

2000-04-18
2004-03-30
Sirf Technology, Inc.
Method and system for data detection in a global positioning system satellite receiver

JP3467226B2
(en)

*

2000-04-20
2003-11-17
埼玉日本電気株式会社

Mobile phone system

US7885314B1
(en)

2000-05-02
2011-02-08
Kenneth Scott Walley
Cancellation system and method for a wireless positioning system

WO2001084745A1
(en)

*

2000-05-03
2001-11-08
Magellan Corporation
Method and apparatus for interference reduction

US6665541B1
(en)

*

2000-05-04
2003-12-16
Snaptrack, Incorporated
Methods and apparatuses for using mobile GPS receivers to synchronize basestations in cellular networks

FI108580B
(en)

*

2000-05-08
2002-02-15
Nokia Corp

Procedure for locating an object, location system, receiver and electronic device

US6928275B1
(en)

*

2000-05-08
2005-08-09
Qualcomm Incorporated
Method and apparatus for compensating local oscillator frequency error

US6522871B1
(en)

*

2000-05-09
2003-02-18
Qualcomm, Incorporated
Method and apparatus for compensating local oscillator frequency error through environmental control

GB0011761D0
(en)

*

2000-05-16
2000-07-05
Koninkl Philips Electronics Nv
A method of despreading a spread spectrum signal

US8078189B2
(en)

2000-08-14
2011-12-13
Sirf Technology, Inc.
System and method for providing location based services over a network

US7970411B2
(en)

2000-05-18
2011-06-28
Sirf Technology, Inc.
Aided location communication system

US7813875B2
(en)

*

2002-10-10
2010-10-12
Sirf Technology, Inc.
Layered host based satellite positioning solutions

US6671620B1
(en)

*

2000-05-18
2003-12-30
Sirf Technology, Inc.
Method and apparatus for determining global position using almanac information

US7929928B2
(en)

2000-05-18
2011-04-19
Sirf Technology Inc.
Frequency phase correction system

US6778136B2
(en)

2001-12-13
2004-08-17
Sirf Technology, Inc.
Fast acquisition of GPS signal

US7970412B2
(en)

2000-05-18
2011-06-28
Sirf Technology, Inc.
Aided location communication system

US6462708B1
(en)

2001-04-05
2002-10-08
Sirf Technology, Inc.
GPS-based positioning system for mobile GPS terminals

US6389291B1
(en)

2000-08-14
2002-05-14
Sirf Technology
Multi-mode global positioning system for use with wireless networks

US6427120B1
(en)

2000-08-14
2002-07-30
Sirf Technology, Inc.
Information transfer in a multi-mode global positioning system used with wireless networks

US7546395B2
(en)

*

2002-10-10
2009-06-09
Sirf Technology, Inc.
Navagation processing between a tracker hardware device and a computer host based on a satellite positioning solution system

US8116976B2
(en)

2000-05-18
2012-02-14
Csr Technology Inc.
Satellite based positioning method and system for coarse location positioning

US7949362B2
(en)

2000-05-18
2011-05-24
Sirf Technology, Inc.
Satellite positioning aided communication system selection

GB0012641D0
(en)

*

2000-05-25
2000-07-12
Koninkl Philips Electronics Nv
A method of estimating the location of a device

US6804290B1
(en)

2000-05-26
2004-10-12
Motorola, Inc.
Method of acquiring signal code phases and geographic positioning receiver

GB0013148D0
(en)

2000-05-31
2000-07-19
Koninkl Philips Electronics Nv
A method of despreading GPS stread spectrum signals

US9875492B2
(en)

2001-05-22
2018-01-23
Dennis J. Dupray
Real estate transaction system

US10684350B2
(en)

2000-06-02
2020-06-16
Tracbeam Llc
Services and applications for a communications network

US10641861B2
(en)

2000-06-02
2020-05-05
Dennis J. Dupray
Services and applications for a communications network

GB0014719D0
(en)

2000-06-16
2000-08-09
Koninkl Philips Electronics Nv
A method of providing an estimate of a location

KR20010113371A
(en)

*

2000-06-19
2001-12-28
지규인
Dgps and rtk correction service based on internet network

US7126527B1
(en)

2000-06-23
2006-10-24
Intel Corporation
Method and apparatus for mobile device location via a network based local area augmentation system

DE60143357D1
(en)

*

2000-06-23
2010-12-09
Sportvision Inc

GPS-BASED TRACKING SYSTEM

US6327533B1
(en)

*

2000-06-30
2001-12-04
Geospatial Technologies, Inc.
Method and apparatus for continuously locating an object

AU2001275882A1
(en)

*

2000-07-26
2002-02-05
Ericsson Inc.
Compensation for frequency adjustment to track or acquire one or more positionalsignals

US6856794B1
(en)

2000-07-27
2005-02-15
Sirf Technology, Inc.
Monolithic GPS RF front end integrated circuit

US7616705B1
(en)

2000-07-27
2009-11-10
Sirf Technology Holdings, Inc.
Monolithic GPS RF front end integrated circuit

US6961019B1
(en)

*

2000-08-10
2005-11-01
Sirf Technology, Inc.
Method and apparatus for reducing GPS receiver jamming during transmission in a wireless receiver

US7236883B2
(en)

2000-08-14
2007-06-26
Sirf Technology, Inc.
Aiding in a satellite positioning system

US7065446B2
(en)

*

2000-08-18
2006-06-20
Geospatial Technologies, Inc.
Real-time smart mobile device for location information processing

US6331836B1
(en)

2000-08-24
2001-12-18
Fast Location.Net, Llc
Method and apparatus for rapidly estimating the doppler-error and other receiver frequency errors of global positioning system satellite signals weakened by obstructions in the signal path

JP4896353B2
(en)

*

2000-08-24
2012-03-14
サーフ テクノロジー インコーポレイテッド

Apparatus and method for reducing autocorrelation or cross-correlation in weak CDMA signals

US7436907B1
(en)

2000-08-24
2008-10-14
Sirf Technology, Inc.
Analog compression of GPS C/A signal to audio bandwidth

US7680178B2
(en)

2000-08-24
2010-03-16
Sirf Technology, Inc.
Cross-correlation detection and elimination in a receiver

US6665612B1
(en)

*

2000-08-29
2003-12-16
Sirf Technology, Inc.
Navigation processing for a satellite positioning system receiver

US6931233B1
(en)

2000-08-31
2005-08-16
Sirf Technology, Inc.
GPS RF front end IC with programmable frequency synthesizer for use in wireless phones

US6437735B1
(en)

*

2000-09-07
2002-08-20
Ericsson Inc.
Position detection system integrated into mobile terminal

US6937865B1
(en)

2000-09-12
2005-08-30
Ericsson Inc.
Position detection system integrated into mobile terminal

US6750814B1
(en)

2000-09-18
2004-06-15
Cellguide Ltd.
Efficient algorithm for processing GPS signals

KR100814251B1
(en)

2000-09-20
2008-03-17
엔엑스피 비 브이
A method of determining the position of a mobile unit

US7463893B1
(en)

2000-09-22
2008-12-09
Sirf Technology, Inc.
Method and apparatus for implementing a GPS receiver on a single integrated circuit

AT4838U1
(en)

*

2000-10-04
2001-12-27
Steyr Daimler Puch Ag

AXLE DRIVE BLOCK FOR A MOTOR VEHICLE

US6437734B1
(en)

2000-10-11
2002-08-20
Seiko Epson Corporation
Satellite navigation receiver and method

US7196660B2
(en)

2000-11-17
2007-03-27
Global Locate, Inc
Method and system for determining time in a satellite positioning system

US6937187B2
(en)

*

2000-11-17
2005-08-30
Global Locate, Inc.
Method and apparatus for forming a dynamic model to locate position of a satellite receiver

US20070200752A1
(en)

*

2001-06-06
2007-08-30
Global Locate, Inc.
Method and apparatus for maintaining integrity of long-term orbits in a remote receiver

US7443340B2
(en)

*

2001-06-06
2008-10-28
Global Locate, Inc.
Method and apparatus for generating and distributing satellite tracking information

US6542820B2
(en)

*

2001-06-06
2003-04-01
Global Locate, Inc.
Method and apparatus for generating and distributing satellite tracking information

US6560534B2
(en)

*

2001-06-06
2003-05-06
Global Locate, Inc.
Method and apparatus for distributing satellite tracking information

US6417801B1
(en)

2000-11-17
2002-07-09
Global Locate, Inc.
Method and apparatus for time-free processing of GPS signals

US7047023B1
(en)

2000-12-01
2006-05-16
Sirf Technology, Inc.
GPS RF front end IC with frequency plan for improved integrability

US7747236B1
(en)

2000-12-11
2010-06-29
Sirf Technology, Inc.
Method and apparatus for estimating local oscillator frequency for GPS receivers

US7113552B1
(en)

2000-12-21
2006-09-26
Sirf Technology, Inc.
Phase sampling techniques using amplitude bits for digital receivers

US6427122B1
(en)

*

2000-12-23
2002-07-30
American Gnc Corporation
Positioning and data integrating method and system thereof

US7671489B1
(en)

2001-01-26
2010-03-02
Sirf Technology, Inc.
Method and apparatus for selectively maintaining circuit power when higher voltages are present

JP2002228739A
(en)

*

2001-01-29
2002-08-14
Denso Corp
Navigation system and gps terminal

US6678510B2
(en)

*

2001-02-05
2004-01-13
Nokia Mobile Phones Ltd.
Method, apparatus and system for GPS time synchronization using cellular signal bursts

US6865380B2
(en)

2001-02-05
2005-03-08
Nokia Corporation
Method, apparatus and system for frequency stabilization using cellular signal bursts

EP1360521A1
(en)

2001-02-06
2003-11-12
Koninklijke Philips Electronics N.V.
A method of despreading gps signals

GB0102881D0
(en)

2001-02-06
2001-03-21
Koninkl Philips Electronics Nv
A method of despreading GPS signals

US6680703B1
(en)

2001-02-16
2004-01-20
Sirf Technology, Inc.
Method and apparatus for optimally tuning a circularly polarized patch antenna after installation

US6703971B2
(en)

2001-02-21
2004-03-09
Sirf Technologies, Inc.
Mode determination for mobile GPS terminals

US6583758B2
(en)

2001-02-22
2003-06-24
Motorola, Inc.
Memory reduction method for a DSP-based GPS processor

US7003264B2
(en)

2001-02-27
2006-02-21
Agilent Technologies, Inc.
System and methods for comparing data quality for multiple wireless communication networks

US7233795B1
(en)

2001-03-19
2007-06-19
Ryden Michael V
Location based communications system

US7076256B1
(en)

2001-04-16
2006-07-11
Sirf Technology, Inc.
Method and apparatus for transmitting position data using control channels in wireless networks

US6567041B1
(en)

2001-04-18
2003-05-20
Sprint Spectrum, L.P.
Network system and method for a remote reference receiver system

US6901265B2
(en)

*

2001-04-25
2005-05-31
Parthus (Uk) Limited
Mobile communication apparatus

GB0110156D0
(en)

*

2001-04-25
2001-06-20
Parthus Uk Ltd
Positioning

US7769076B2
(en)

2001-05-18
2010-08-03
Broadcom Corporation
Method and apparatus for performing frequency synchronization

US7006556B2
(en)

*

2001-05-18
2006-02-28
Global Locate, Inc.
Method and apparatus for performing signal correlation at multiple resolutions to mitigate multipath interference

US8244271B2
(en)

2001-05-21
2012-08-14
Csr Technology Inc.
Distributed data collection of satellite data

US7877104B2
(en)

*

2001-05-21
2011-01-25
Sirf Technology Inc.
Method for synchronizing a radio network using end user radio terminals

US7925210B2
(en)

2001-05-21
2011-04-12
Sirf Technology, Inc.
Synchronizing a radio network with end user radio terminals

US7668554B2
(en)

2001-05-21
2010-02-23
Sirf Technology, Inc.
Network system for aided GPS broadcast positioning

US7072668B2
(en)

*

2001-05-22
2006-07-04
Geospatial Technologies, Inc.
Durable global asset-tracking device and a method of using the same

KR100448574B1
(en)

*

2001-06-05
2004-09-13
주식회사 네비콤
GPS Receiver and Method for Determining Position of a Wireless Terminal

US20080125971A1
(en)

*

2001-06-06
2008-05-29
Van Diggelen Frank
Method and apparatus for improving accuracy and/or integrity of long-term-orbit information for a global-navigation-satellite system

US7548816B2
(en)

2001-06-06
2009-06-16
Global Locate, Inc.
Method and apparatus for generating and securely distributing long-term satellite tracking information

US8212719B2
(en)

*

2001-06-06
2012-07-03
Global Locate, Inc.
Method and apparatus for background decoding of a satellite navigation message to maintain integrity of long term orbit information in a remote receiver

US8358245B2
(en)

2001-06-06
2013-01-22
Broadcom Corporation
Method and system for extending the usability period of long term orbit (LTO)

US8090536B2
(en)

*

2001-06-06
2012-01-03
Broadcom Corporation
Method and apparatus for compression of long term orbit data

US20080186229A1
(en)

*

2001-06-06
2008-08-07
Van Diggelen Frank
Method and Apparatus for Monitoring Satellite-Constellation Configuration To Maintain Integrity of Long-Term-Orbit Information In A Remote Receiver

US7164736B2
(en)

2001-06-22
2007-01-16
Sirf Technology, Inc.
Synthesizing coherent correlation sums at one or multiple carrier frequencies using correlation sums calculated at a course set of frequencies

US9052374B2
(en)

2001-07-18
2015-06-09
Fast Location.Net, Llc
Method and system for processing positioning signals based on predetermined message data segment

US6628234B2
(en)

*

2001-07-18
2003-09-30
Fast Location.Net, Llc
Method and system for processing positioning signals in a stand-alone mode

US6529160B2
(en)

2001-07-18
2003-03-04
Fast Location.Net, Llc
Method and system for determining carrier frequency offsets for positioning signals

US6882309B2
(en)

*

2001-07-18
2005-04-19
Fast Location. Net, Llc
Method and system for processing positioning signals based on predetermined message data segment

US6515620B1
(en)

2001-07-18
2003-02-04
Fast Location.Net, Llc
Method and system for processing positioning signals in a geometric mode

GB0117883D0
(en)

2001-07-21
2001-09-12
Koninkl Philips Electronics Nv
Method and apparatus for estimating gps time

US6651000B2
(en)

*

2001-07-25
2003-11-18
Global Locate, Inc.
Method and apparatus for generating and distributing satellite tracking information in a compact format

US6775319B2
(en)

2001-08-16
2004-08-10
Motorola, Inc.
Spread spectrum receiver architectures and methods therefor

US6532251B1
(en)

2001-08-16
2003-03-11
Motorola, Inc.
Data message bit synchronization and local time correction methods and architectures

JP4260625B2
(en)

2001-09-14
2009-04-30
サーフ テクノロジー インコーポレイテッド

Improved power management for satellite positioning systems

US6965754B2
(en)

*

2001-10-09
2005-11-15
Motorola, Inc.
Satellite positioning system receiver with reference oscillator circuit and methods therefor

US6756938B2
(en)

2001-11-06
2004-06-29
Motorola, Inc.
Satellite positioning system receivers and methods therefor

US7656350B2
(en)

*

2001-11-06
2010-02-02
Global Locate
Method and apparatus for processing a satellite positioning system signal using a cellular acquisition signal

US6771211B2
(en)

*

2001-11-13
2004-08-03
Nokia Corporation
Method, system and devices for positioning a receiver

US20030125045A1
(en)

*

2001-12-27
2003-07-03
Riley Wyatt Thomas
Creating and using base station almanac information in a wireless communication system having a position location capability

US6985903B2
(en)

2002-01-25
2006-01-10
Qualcomm, Incorporated
Method and system for storage and fast retrieval of digital terrain model elevations for use in positioning systems

US6760582B2
(en)

*

2002-02-04
2004-07-06
Qualcomm Incorporated
Method and apparatus for testing assisted position location capable devices

AU2003219841A1
(en)

*

2002-02-22
2003-09-09
Global Locate, Inc.
Method and apparatus for compensating an oscillator in a location-enabled wireless device

JP2003255040A
(en)

*

2002-02-28
2003-09-10
Sony Corp
Gps receiver and receiving method

US8126889B2
(en)

2002-03-28
2012-02-28
Telecommunication Systems, Inc.
Location fidelity adjustment based on mobile subscriber privacy profile

US8290505B2
(en)

2006-08-29
2012-10-16
Telecommunications Systems, Inc.
Consequential location derived information

US8027697B2
(en)

2007-09-28
2011-09-27
Telecommunication Systems, Inc.
Public safety access point (PSAP) selection for E911 wireless callers in a GSM type system

US6944540B2
(en)

2002-03-28
2005-09-13
Motorola, Inc.
Time determination in satellite positioning system receivers and methods therefor

US8918073B2
(en)

2002-03-28
2014-12-23
Telecommunication Systems, Inc.
Wireless telecommunications location based services scheme selection

US9154906B2
(en)

2002-03-28
2015-10-06
Telecommunication Systems, Inc.
Area watcher for wireless network

US7426380B2
(en)

2002-03-28
2008-09-16
Telecommunication Systems, Inc.
Location derived presence information

US6937872B2
(en)

*

2002-04-15
2005-08-30
Qualcomm Incorporated
Methods and apparatuses for measuring frequencies of basestations in cellular networks using mobile GPS receivers

US9182238B2
(en)

2002-04-24
2015-11-10
Ipventure, Inc.
Method and apparatus for intelligent acquisition of position information

US9049571B2
(en)

2002-04-24
2015-06-02
Ipventure, Inc.
Method and system for enhanced messaging

US7460870B2
(en)

*

2002-04-25
2008-12-02
Qualcomm Incorporated
Method and apparatus for location determination in a wireless assisted hybrid positioning system

US6661371B2
(en)

2002-04-30
2003-12-09
Motorola, Inc.
Oscillator frequency correction in GPS signal acquisition

JP4003169B2
(en)

*

2002-05-09
2007-11-07
日本電気株式会社

Mobile communication terminal with GPS function

KR100726108B1
(en)

*

2002-05-17
2007-06-12
모토로라 인코포레이티드
System and method for frequency management in a communications positioning device

DE60317193T2
(en)

*

2002-05-22
2008-08-14
Sirf Technology, Inc., San Jose

HELP IN A SATELLITE POSITIONING SYSTEM

CN100544232C
(en)

*

2002-05-29
2009-09-23
汤姆森特许公司
The method and apparatus of enabled wireless Return Channel signal transmission in the satellite communication system

US6725157B1
(en)

2002-06-10
2004-04-20
Trimble Navigation Limited
Indoor GPS clock

US6747596B2
(en)

*

2002-06-20
2004-06-08
Sirf Technology, Inc.
Generic satellite positioning system receivers with programmable inputs

WO2004001439A1
(en)

*

2002-06-20
2003-12-31
Sirf Technology, Inc.
Generic satellite positioning system receivers with programmable inputs and selectable inputs and outputs

US6738013B2
(en)

*

2002-06-20
2004-05-18
Sirf Technology, Inc.
Generic satellite positioning system receivers with selective inputs and outputs

WO2004004394A1
(en)

*

2002-06-28
2004-01-08
Nokia Corporation
Communicating information associated with provisioning of a service, over a user plane connection

US20040010368A1
(en)

*

2002-07-10
2004-01-15
Logan Scott
Assisted GPS signal detection and processing system for indoor location determination

US20040073363A1
(en)

*

2002-07-23
2004-04-15
Eliezer Sanchez
Electronic localizing protection device

US7239271B1
(en)

2002-08-15
2007-07-03
Sirf Technology, Inc.
Partial almanac collection system

WO2004017092A1
(en)

*

2002-08-15
2004-02-26
Sirf Technology, Inc.
Interface for a gps system

GB2393611B8
(en)

*

2002-09-26
2006-05-11
Qualcomm Inc
Method of and apparatus for reducing frequency errors associated with an inter-system scan

US6697016B1
(en)

*

2002-09-30
2004-02-24
Motorola, Inc.
Self adjustment of a frequency offset in a GPS receiver

US7233798B2
(en)

*

2002-09-30
2007-06-19
Motorola, Inc.
Method and apparatus for determining location of a remote unit using GPS

US7595752B2
(en)

*

2002-10-02
2009-09-29
Global Locate, Inc.
Method and apparatus for enhanced autonomous GPS

EP1835300B1
(en)

*

2002-10-02
2014-05-21
Global Locate, Inc.
Method and apparatus for using long term satellite tracking data in a remote receiver

US7158080B2
(en)

*

2002-10-02
2007-01-02
Global Locate, Inc.
Method and apparatus for using long term satellite tracking data in a remote receiver

EP1558944A4
(en)

*

2002-10-04
2008-10-22
Sigtec Navigation Pty Ltd
Satellite-based positioning system improvement

US20040198382A1
(en)

*

2002-10-15
2004-10-07
Hammond Wong
GPS children locator

US7660588B2
(en)

2002-10-17
2010-02-09
Qualcomm Incorporated
Method and apparatus for improving radio location accuracy with measurements

US7289541B2
(en)

*

2002-12-04
2007-10-30
Raytheon Company
Method for locating and tracking communication units in a synchronous wireless communication system

CA2509383A1
(en)

*

2002-12-11
2004-06-24
Qualcomm Incorporated
Method and apparatus for scheduling search for and acquisition of global positioning satellites

US7202801B2
(en)

*

2002-12-11
2007-04-10
Geospatial Technologies, Inc.
Method and apparatus for an automated location-based, dynamic notification system (ALDNS)

US6816111B2
(en)

*

2002-12-13
2004-11-09
Qualcomm Incorporated
Calibration and correction system for satellite position location systems

US7359716B2
(en)

*

2003-01-31
2008-04-15
Douglas Rowitch
Location based service (LBS) system, method and apparatus for authorization of mobile station LBS applications

US7505757B2
(en)

*

2003-01-31
2009-03-17
Qualcomm Incorporated
Location based service (LBS) system, method and apparatus for triggering of mobile station LBS applications

US7170447B2
(en)

*

2003-02-14
2007-01-30
Qualcomm Incorporated
Method and apparatus for processing navigation data in position determination

GB2399966A
(en)

2003-03-27
2004-09-29
Nokia Corp
Temperature-insensitive GPS receiver

US7062240B2
(en)

2003-04-22
2006-06-13
Motorola, Inc.
Automatic frequency control processing in multi-channel receivers

US7215281B2
(en)

*

2003-04-25
2007-05-08
New Jersey Institute Of Technology
Wireless network assisted GPS system

US7324797B2
(en)

*

2003-06-12
2008-01-29
Raytheon Company
Bragg-cell application to high probability of intercept receiver

WO2004111675A1
(en)

*

2003-06-13
2004-12-23
Harvey A Stephen
Security system including a method and system for acquiring gps satellite position

US20040263386A1
(en)

*

2003-06-26
2004-12-30
King Thomas M.
Satellite positioning system receivers and methods

US8971913B2
(en)

2003-06-27
2015-03-03
Qualcomm Incorporated
Method and apparatus for wireless network hybrid positioning

MXPA05014048A
(en)

2003-06-27
2006-03-17
Qualcomm Inc
Method and apparatus for wireless network hybrid positioning.

US8483717B2
(en)

2003-06-27
2013-07-09
Qualcomm Incorporated
Local area network assisted positioning

US6915210B2
(en)

*

2003-07-17
2005-07-05
Motorola, Inc.
Method of updating GPS almanac data for satellites not in view

US7123928B2
(en)

2003-07-21
2006-10-17
Qualcomm Incorporated
Method and apparatus for creating and using a base station almanac for position determination

US20050101346A1
(en)

*

2003-11-07
2005-05-12
Steve Wozniak
Receiver device and method using GPS baseband correlator circuitry for despreading both GPS and local wireless baseband signals

US7283046B2
(en)

*

2003-08-01
2007-10-16
Spectrum Tracking Systems, Inc.
Method and system for providing tracking services to locate an asset

US7224950B2
(en)

*

2003-08-27
2007-05-29
Seiko Epson Corporation
Estimating GPS reference frequency drift from PDC-handset VCO-bursts

KR20070019940A
(en)

2003-09-02
2007-02-16
서프 테크놀러지, 인코포레이티드
Control and features for satellite positioning system receivers

US8164517B2
(en)

2003-09-02
2012-04-24
Csr Technology Inc.
Global positioning system receiver timeline management

US7822105B2
(en)

2003-09-02
2010-10-26
Sirf Technology, Inc.
Cross-correlation removal of carrier wave jamming signals

US8138972B2
(en)

2003-09-02
2012-03-20
Csr Technology Inc.
Signal processing system for satellite positioning signals

US20050052317A1
(en)

*

2003-09-04
2005-03-10
Eride, Inc.
Combination navigation satellite receivers and communications devices

US7424293B2
(en)

2003-12-02
2008-09-09
Telecommunication Systems, Inc.
User plane location based service using message tunneling to support roaming

GB2409376B
(en)

*

2003-12-17
2006-06-28
Motorola Inc
A subscriber unit, a cellular communication system and a method for determining a location therefor

US7260186B2
(en)

2004-03-23
2007-08-21
Telecommunication Systems, Inc.
Solutions for voice over internet protocol (VoIP) 911 location services

US20080090546A1
(en)

2006-10-17
2008-04-17
Richard Dickinson
Enhanced E911 network access for a call center using session initiation protocol (SIP) messaging

US20080126535A1
(en)

2006-11-28
2008-05-29
Yinjun Zhu
User plane location services over session initiation protocol (SIP)

US7158885B1
(en)

2003-12-23
2007-01-02
Trimble Navigation Limited
Remote subscription unit for GPS information

US7580794B2
(en)

*

2003-12-23
2009-08-25
Trimble Navigation Limited
Remote subscription unit for GNSS information

US7020555B1
(en)

2003-12-23
2006-03-28
Trimble Navigation Limited
Subscription GPS information service system

US7133324B2
(en)

*

2003-12-24
2006-11-07
Samsung Electronics Co., Ltd.
Synchronous dynamic random access memory devices having dual data rate 1 (DDR1) and DDR2 modes of operation and methods of operating same

US7181228B2
(en)

*

2003-12-31
2007-02-20
Corporation For National Research Initiatives
System and method for establishing and monitoring the relative location of group members

FR2865605B1
(en)

*

2004-01-26
2006-04-28
Cit Alcatel

METHOD FOR ASSISTED LOCATION OF MOBILE COMMUNICATION TERMINALS OF A CELLULAR NETWORK USING USSD TRANSPORT CHANNEL

US7365680B2
(en)

2004-02-10
2008-04-29
Sirf Technology, Inc.
Location services system that reduces auto-correlation or cross-correlation in weak signals

JP4315832B2
(en)

*

2004-02-17
2009-08-19
三菱電機株式会社

Thermal infrared sensor element and thermal infrared sensor array

US7477906B2
(en)

*

2004-02-27
2009-01-13
Research In Motion Limited
Methods and apparatus for facilitating the determination of GPS location information for a mobile station without disrupting communications of a voice call

US20050202829A1
(en)

*

2004-03-01
2005-09-15
Texas Instruments Incorporated
Satellite positioning system receiver utilizing time-aiding information from an independent source

US7941164B2
(en)

*

2004-03-01
2011-05-10
Texas Instruments Incorporated
Satellite positioning system receiver utilizing broadcast doppler information

US20050209762A1
(en)

*

2004-03-18
2005-09-22
Ford Global Technologies, Llc
Method and apparatus for controlling a vehicle using an object detection system and brake-steer

WO2005106523A1
(en)

2004-04-02
2005-11-10
Qualcomm Incorporated
Methods and apparatuses for beacon assisted position determination systems

US7256731B2
(en)

*

2004-05-27
2007-08-14
Northrop Grumman Corporation
Power cycling for a global positioning system

US7319878B2
(en)

2004-06-18
2008-01-15
Qualcomm Incorporated
Method and apparatus for determining location of a base station using a plurality of mobile stations in a wireless mobile network

US20060021231A1
(en)

*

2004-07-28
2006-02-02
Carey Nancy D
Adaptive scissors

JP2006038734A
(en)

*

2004-07-29
2006-02-09
Seiko Epson Corp
Positioning system, terminal device, control method for terminal device, control program for terminal device, and computer-readable recording medium for recording control program on terminal device

GB0418766D0
(en)

*

2004-08-23
2004-09-22
Koninkl Philips Electronics Nv
A computer programmed with gps signal processing programs

US7012563B1
(en)

2004-09-10
2006-03-14
Motorola, Inc.
Method and system for frequency drift prediction

US6985105B1
(en)

2004-10-15
2006-01-10
Telecommunication Systems, Inc.
Culled satellite ephemeris information based on limiting a span of an inverted cone for locating satellite in-range determinations

US7411546B2
(en)

2004-10-15
2008-08-12
Telecommunication Systems, Inc.
Other cell sites used as reference point to cull satellite ephemeris information for quick, accurate assisted locating satellite location determination

US7629926B2
(en)

2004-10-15
2009-12-08
Telecommunication Systems, Inc.
Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas

US7113128B1
(en)

2004-10-15
2006-09-26
Telecommunication Systems, Inc.
Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas

EP1802991B1
(en)

*

2004-10-21
2012-03-28
Nokia Corporation
Satellite based positioning

US8254512B2
(en)

*

2004-11-17
2012-08-28
Qualcomm Incorporated
Method and apparatus for increasing coherent integration length while receiving a positioning signal

US20060116131A1
(en)

*

2004-11-30
2006-06-01
Morgan Scott D
Reporting satellite positioning system assistance integrity information in wireless communication networks

EP1677476B1
(en)

*

2004-12-28
2007-11-21
Alcatel Lucent
Terminal GPS/OFDM avec FFT/IFFT moyens en commun

US7019689B1
(en)

*

2005-01-31
2006-03-28
Seiko Epson Corporation
Skipping z-counts and accurate time in GPS receivers

US7508810B2
(en)

2005-01-31
2009-03-24
Airbiquity Inc.
Voice channel control of wireless packet data communications

US7353034B2
(en)

2005-04-04
2008-04-01
X One, Inc.
Location sharing and tracking using mobile phones or other wireless devices

US7545316B2
(en)

*

2005-04-22
2009-06-09
Texas Instruments Incorporated
Apparatus and methods to share time and frequency data between a host processor and a satellite positioning system receiver

US8139685B2
(en)

*

2005-05-10
2012-03-20
Qualcomm Incorporated
Systems, methods, and apparatus for frequency control

US7961717B2
(en)

*

2005-05-12
2011-06-14
Iposi, Inc.
System and methods for IP and VoIP device location determination

US8660573B2
(en)

2005-07-19
2014-02-25
Telecommunications Systems, Inc.
Location service requests throttling

US7620403B2
(en)

*

2005-07-29
2009-11-17
Motorola, Inc.
Method and apparatus for providing reference frequency aiding among peers operating in a direct communication mode

US7283091B1
(en)

2005-08-08
2007-10-16
Trimble Navigation Limited
Radio positioning system for providing position and time for assisting GPS signal acquisition in mobile unit

US7295156B2
(en)

*

2005-08-08
2007-11-13
Trimble Navigation Limited
Cellphone GPS positioning system

US7257413B2
(en)

2005-08-24
2007-08-14
Qualcomm Incorporated
Dynamic location almanac for wireless base stations

US8099106B2
(en)

*

2005-08-24
2012-01-17
Qualcomm Incorporated
Method and apparatus for classifying user morphology for efficient use of cell phone system resources

JP4215036B2
(en)

*

2005-09-06
2009-01-28
セイコーエプソン株式会社

Terminal device

US9282451B2
(en)

2005-09-26
2016-03-08
Telecommunication Systems, Inc.
Automatic location identification (ALI) service requests steering, connection sharing and protocol translation

US7825780B2
(en)

2005-10-05
2010-11-02
Telecommunication Systems, Inc.
Cellular augmented vehicle alarm notification together with location services for position of an alarming vehicle

US7907551B2
(en)

*

2005-10-06
2011-03-15
Telecommunication Systems, Inc.
Voice over internet protocol (VoIP) location based 911 conferencing

US8467320B2
(en)

2005-10-06
2013-06-18
Telecommunication Systems, Inc.
Voice over internet protocol (VoIP) multi-user conferencing

BRPI0617520A2
(en)

2005-10-20
2011-07-26
Qualcomm Inc

Method and equipment for automatically triggering position locating fixtures for external devices

US9042917B2
(en)

2005-11-07
2015-05-26
Qualcomm Incorporated
Positioning for WLANS and other wireless networks

US7893869B2
(en)

*

2006-01-05
2011-02-22
Qualcomm Incorporated
Global navigation satellite system

JP2009523247A
(en)

2006-01-10
2009-06-18
クゥアルコム・インコーポレイテッド

Global satellite navigation system

US8150363B2
(en)

2006-02-16
2012-04-03
Telecommunication Systems, Inc.
Enhanced E911 network access for call centers

US8059789B2
(en)

2006-02-24
2011-11-15
Telecommunication Systems, Inc.
Automatic location identification (ALI) emergency services pseudo key (ESPK)

US7471236B1
(en)

2006-03-01
2008-12-30
Telecommunication Systems, Inc.
Cellular augmented radar/laser detector

US9167553B2
(en)

2006-03-01
2015-10-20
Telecommunication Systems, Inc.
GeoNexus proximity detector network

US7899450B2
(en)

2006-03-01
2011-03-01
Telecommunication Systems, Inc.
Cellular augmented radar/laser detection using local mobile network within cellular network

US7925320B2
(en)

2006-03-06
2011-04-12
Garmin Switzerland Gmbh
Electronic device mount

CA2641338A1
(en)

*

2006-03-15
2007-09-20
Qualcomm Incorporated
Global navigation satellite system

GB0606466D0
(en)

*

2006-03-31
2006-05-10
Qinetiq Ltd
Geolocation methods and apparatus

ATE555399T1
(en)

*

2006-04-04
2012-05-15
Cambridge Positioning Sys Ltd

ASSOCIATING A UNIVERSAL TIME WITH A RECEIVED SIGNAL

US7924934B2
(en)

2006-04-07
2011-04-12
Airbiquity, Inc.
Time diversity voice channel data communications

US7548200B2
(en)

*

2006-04-24
2009-06-16
Nemerix Sa
Ephemeris extension method for GNSS applications

US9097783B2
(en)

2006-04-28
2015-08-04
Telecommunication Systems, Inc.
System and method for positioning using hybrid spectral compression and cross correlation signal processing

US7511662B2
(en)

*

2006-04-28
2009-03-31
Loctronix Corporation
System and method for positioning in configured environments

US8208605B2
(en)

2006-05-04
2012-06-26
Telecommunication Systems, Inc.
Extended efficient usage of emergency services keys

US7579987B2
(en)

*

2006-05-18
2009-08-25
The Boeing Company
Low earth orbit satellite providing navigation signals

US8296051B2
(en)

*

2006-05-18
2012-10-23
The Boeing Company
Generalized high performance navigation system

US7554481B2
(en)

2006-05-18
2009-06-30
The Boeing Company
Localized jamming of navigation signals

US7583225B2
(en)

*

2006-05-18
2009-09-01
The Boeing Company
Low earth orbit satellite data uplink

JP5657192B2
(en)

*

2006-06-23
2015-01-21
クゥアルコム・インコーポレイテッドQualcomm Incorporated

Ephemeris extension method and apparatus for GNSS applications

US7724186B2
(en)

*

2006-06-30
2010-05-25
Sirf Technology, Inc.
Enhanced aiding in GPS systems

US8121238B2
(en)

2006-06-30
2012-02-21
Csr Technology Inc.
System and method for synchronizing digital bits in a data stream

TWI381711B
(en)

*

2006-07-05
2013-01-01
Mstar Semiconductor Inc
Mobile communication device with positioning capability and related gps receiver

US8725162B2
(en)

*

2006-07-05
2014-05-13
Mstar Semiconductor, Inc.
Mobile communication device with positioning capability and related GPS receiver

US7970534B2
(en)

*

2006-08-24
2011-06-28
Blackbird Technologies, Inc.
Mobile unit and system having integrated mapping, communications and tracking

JP5446062B2
(en)

*

2006-09-14
2014-03-19
セイコーエプソン株式会社

Search range update method, terminal device control program, recording medium, and terminal device

JP4172513B2
(en)

2006-09-14
2008-10-29
セイコーエプソン株式会社

Satellite signal search range update method and positioning device

US7966013B2
(en)

2006-11-03
2011-06-21
Telecommunication Systems, Inc.
Roaming gateway enabling location based services (LBS) roaming for user plane in CDMA networks without requiring use of a mobile positioning center (MPC)

US9226257B2
(en)

2006-11-04
2015-12-29
Qualcomm Incorporated
Positioning for WLANs and other wireless networks

TWI415039B
(en)

*

2007-01-04
2013-11-11
Mstar Semiconductor Inc
Navigating system and method with rfid function

US7466209B2
(en)

*

2007-01-05
2008-12-16
Sirf Technology, Inc.
System and method for providing temperature correction in a crystal oscillator

US7586382B2
(en)

*

2007-01-30
2009-09-08
Sirf Technology, Inc.
Methods and systems for temperature related frequency drift compensation

US7477189B2
(en)

*

2007-01-30
2009-01-13
Sirf Technology Holdings, Inc.
Methods and systems for acquisition, reacquisiton and tracking of weak navigational signals

US8497801B2
(en)

*

2007-02-05
2013-07-30
Qualcomm Incorporated
Prediction refresh method for ephemeris extensions

US8050386B2
(en)

2007-02-12
2011-11-01
Telecommunication Systems, Inc.
Mobile automatic location identification (ALI) for first responders

US20080204130A1
(en)

*

2007-02-28
2008-08-28
Wheat International Communications Corporation
Oscillator bias injector

US7843335B2
(en)

*

2007-03-13
2010-11-30
Blackbird Technologies, Inc.
Mobile asset tracking unit, system and method

JP4997282B2
(en)

*

2007-03-29
2012-08-08
パナソニック株式会社

Signal capturing apparatus and signal capturing method

US7724612B2
(en)

*

2007-04-20
2010-05-25
Sirf Technology, Inc.
System and method for providing aiding information to a satellite positioning system receiver over short-range wireless connections

US8160617B2
(en)

2007-06-22
2012-04-17
Nokia Corporation
Apparatus and method for use in location determination

US20090016167A1
(en)

*

2007-07-09
2009-01-15
Seiko Epson Corporation
Time Adjustment Device, Timekeeping Device with a Time Adjustment Device, and a Time Adjustment Method

KR100912808B1
(en)

*

2007-07-11
2009-08-18
한국전자통신연구원
Vehicle clock synchronization using a navigation device

US8249616B2
(en)

*

2007-08-23
2012-08-21
Texas Instruments Incorporated
Satellite (GPS) assisted clock apparatus, circuits, systems and processes for cellular terminals on asynchronous networks

WO2009038726A1
(en)

2007-09-17
2009-03-26
Telecommunication Systems, Inc.
Emergency 911 data messaging

US8331898B2
(en)

*

2007-10-03
2012-12-11
Texas Instruments Incorporated
Power-saving receiver circuits, systems and processes

MX2010003700A
(en)

2007-10-20
2010-04-21
Airbiquity Inc
Wireless in-band signaling with in-vehicle systems.

US7995683B2
(en)

*

2007-10-24
2011-08-09
Sirf Technology Inc.
Noise floor independent delay-locked loop discriminator

US7642957B2
(en)

*

2007-11-27
2010-01-05
Sirf Technology, Inc.
GPS system utilizing multiple antennas

US9130963B2
(en)

2011-04-06
2015-09-08
Telecommunication Systems, Inc.
Ancillary data support in session initiation protocol (SIP) messaging

US7929530B2
(en)

2007-11-30
2011-04-19
Telecommunication Systems, Inc.
Ancillary data support in session initiation protocol (SIP) messaging

CN103259751B
(en)

2007-12-19
2016-04-20
福尔肯纳米有限公司
For improving communication speed, spectrum efficiency realize suppress sideband communication system and the method for other benefits

US8144053B2
(en)

*

2008-02-04
2012-03-27
Csr Technology Inc.
System and method for verifying consistent measurements in performing GPS positioning

US8699984B2
(en)

2008-02-25
2014-04-15
Csr Technology Inc.
Adaptive noise figure control in a radio receiver

US20110205115A1
(en)

*

2008-02-25
2011-08-25
Sirf Technology, Inc.
Always on GPS Device

US7616064B2
(en)

*

2008-02-28
2009-11-10
Noshir Dubash
Digital synthesizer for low power location receivers

ATE466296T1
(en)

2008-03-12
2010-05-15
Research In Motion Ltd

MULTIPLE CLOCK SIGNAL GENERATION FROM A COMMON OSCILLATOR

US7903025B2
(en)

*

2008-03-12
2011-03-08
Research In Motion Limited
Multiple clock signal generation from a common oscillator

US8478305B2
(en)

*

2008-04-09
2013-07-02
Csr Technology Inc.
System and method for integrating location information into an internet phone system

WO2009140768A1
(en)

*

2008-05-22
2009-11-26
Novatel Inc.
Gnss receiver using signals of opportunity and assistance information to reduce the time to first fix

US7952518B2
(en)

2008-05-30
2011-05-31
The Boeing Company
Internet hotspots localization using satellite systems

US8035558B2
(en)

*

2008-05-30
2011-10-11
The Boeing Company
Precise absolute time transfer from a satellite system

US8542147B2
(en)

2008-05-30
2013-09-24
The Boeing Company
Precise absolute time transfer from a satellite system

US8897801B2
(en)

2008-06-13
2014-11-25
Qualcomm Incorporated
Transmission of location information by a transmitter as an aid to location services

WO2010005731A1
(en)

2008-06-16
2010-01-14
Skyhook Wireless, Inc.
Methods and systems for determining location using a cellular and wlan positioning system by selecting the best wlan ps solution

US20090310593A1
(en)

*

2008-06-17
2009-12-17
Qualcomm Incorporated
Self-positioning access points

US8200238B2
(en)

*

2008-06-17
2012-06-12
Trimble Navigation Limited
System having doppler-based control of a mobile device

US8013786B2
(en)

*

2008-06-17
2011-09-06
Trimble Navigation Limited
Method and communication system for limiting the functionality of an electronic device

US8476982B2
(en)

*

2008-06-18
2013-07-02
Qualcomm Incorporated
Reference oscillator management for wireless devices having position determination functionality

US8072376B2
(en)

*

2008-06-27
2011-12-06
Sirf Technology Inc.
Method and apparatus for mitigating the effects of cross correlation in a GPS receiver

US8073414B2
(en)

*

2008-06-27
2011-12-06
Sirf Technology Inc.
Auto-tuning system for an on-chip RF filter

US8068587B2
(en)

2008-08-22
2011-11-29
Telecommunication Systems, Inc.
Nationwide table routing of voice over internet protocol (VOIP) emergency calls

US8594138B2
(en)

2008-09-15
2013-11-26
Airbiquity Inc.
Methods for in-band signaling through enhanced variable-rate codecs

US7983310B2
(en)

2008-09-15
2011-07-19
Airbiquity Inc.
Methods for in-band signaling through enhanced variable-rate codecs

EP2347395A4
(en)

2008-10-14
2016-11-02
Telecomm Systems Inc
Location based proximity alert

US8892128B2
(en)

2008-10-14
2014-11-18
Telecommunication Systems, Inc.
Location based geo-reminders

US8478228B2
(en)

2008-10-20
2013-07-02
Qualcomm Incorporated
Mobile receiver with location services capability

US8180368B2
(en)

*

2008-11-11
2012-05-15
Trueposition, Inc.
Femto-cell location by direct methods

US8200239B2
(en)

*

2008-11-11
2012-06-12
Trueposition, Inc.
Femto-cell location by proxy methods

US7859455B2
(en)

*

2009-01-06
2010-12-28
The Boeing Company
Local clock frequency calibration using low earth orbit (LEO) satellites

US8433283B2
(en)

2009-01-27
2013-04-30
Ymax Communications Corp.
Computer-related devices and techniques for facilitating an emergency call via a cellular or data network using remote communication device identifying information

US8036600B2
(en)

2009-04-27
2011-10-11
Airbiquity, Inc.
Using a bluetooth capable mobile phone to access a remote network

US9301191B2
(en)

2013-09-20
2016-03-29
Telecommunication Systems, Inc.
Quality of service to over the top applications used with VPN

US8867485B2
(en)

2009-05-05
2014-10-21
Telecommunication Systems, Inc.
Multiple location retrieval function (LRF) network having location continuity

CN101566678A
(en)

*

2009-05-27
2009-10-28
刘建
Method and system for updating ephemeris

US8390512B2
(en)

*

2009-06-05
2013-03-05
Qualcomm Incorporated
On demand positioning

US9916625B2
(en)

2012-02-02
2018-03-13
Progressive Casualty Insurance Company
Mobile insurance platform system

US8301098B2
(en)

*

2009-06-24
2012-10-30
Marvell World Trade Ltd.
System and transceiver clocking to minimize required number of reference sources in multi-function cellular applications including GPS

US8600297B2
(en)

2009-07-28
2013-12-03
Qualcomm Incorporated
Method and system for femto cell self-timing and self-locating

US8418039B2
(en)

2009-08-03
2013-04-09
Airbiquity Inc.
Efficient error correction scheme for data transmission in a wireless in-band signaling system

US20110039578A1
(en)

2009-08-14
2011-02-17
Qualcomm Incorporated
Assistance data for positioning in multiple radio access technologies

US20110102259A1
(en)

*

2009-09-24
2011-05-05
Coherent Navigation, Inc.
Augmenting GNSS User Equipment to Improve Resistance to Spoofing

US9633327B2
(en)

2009-09-25
2017-04-25
Fedex Corporate Services, Inc.
Sensor zone management

US8239169B2
(en)

2009-09-25
2012-08-07
Gregory Timothy L
Portable computing device and method for asset management in a logistics system

US8299920B2
(en)

2009-09-25
2012-10-30
Fedex Corporate Services, Inc.
Sensor based logistics system

US8249865B2
(en)

2009-11-23
2012-08-21
Airbiquity Inc.
Adaptive data transmission for a digital in-band modem operating over a voice channel

US9651675B2
(en)

*

2010-02-12
2017-05-16
Avago Technologies General Ip (Singapore) Pte. Ltd.
Estimating frequency of a GNSS enabled device based on time stamps

US9063222B2
(en)

*

2010-05-28
2015-06-23
Qualcomm Incorporated
Almanac maintenance for mobile station positioning

US8532670B2
(en)

2010-06-02
2013-09-10
Deutsche Telekom Ag
Apparatus, method, and system for sensing suppression for location-based applications

US8336664B2
(en)

2010-07-09
2012-12-25
Telecommunication Systems, Inc.
Telematics basic mobile device safety interlock

WO2012005769A1
(en)

2010-07-09
2012-01-12
Telecommunication Systems, Inc.
Location privacy selector

US8732697B2
(en)

2010-08-04
2014-05-20
Premkumar Jonnala
System, method and apparatus for managing applications on a device

US9538493B2
(en)

2010-08-23
2017-01-03
Finetrak, Llc
Locating a mobile station and applications therefor

US8688087B2
(en)

2010-12-17
2014-04-01
Telecommunication Systems, Inc.
N-dimensional affinity confluencer

US8942743B2
(en)

2010-12-17
2015-01-27
Telecommunication Systems, Inc.
iALERT enhanced alert manager

WO2012087353A1
(en)

2010-12-22
2012-06-28
Telecommunication Systems, Inc.
Area event handling when current network does not cover target area

US20120183023A1
(en)

*

2011-01-14
2012-07-19
Qualcomm Incorporated
Implementations for wireless signal processing

WO2012141762A1
(en)

2011-02-25
2012-10-18
Telecommunication Systems, Inc.
Mobile internet protocol (ip) location

US8538373B2
(en)

2011-05-25
2013-09-17
Blackbird Technologies, Inc.
Methods and apparatus for emergency tracking

US8649806B2
(en)

2011-09-02
2014-02-11
Telecommunication Systems, Inc.
Aggregate location dynometer (ALD)

US9479344B2
(en)

2011-09-16
2016-10-25
Telecommunication Systems, Inc.
Anonymous voice conversation

US8848825B2
(en)

2011-09-22
2014-09-30
Airbiquity Inc.
Echo cancellation in wireless inband signaling modem

US8831556B2
(en)

2011-09-30
2014-09-09
Telecommunication Systems, Inc.
Unique global identifier header for minimizing prank emergency 911 calls

US8847819B2
(en)

*

2011-10-25
2014-09-30
Texas Instruments Incorporated
Clock drift profile determination in navigation system receivers

US9313637B2
(en)

2011-12-05
2016-04-12
Telecommunication Systems, Inc.
Wireless emergency caller profile data delivery over a legacy interface

US9264537B2
(en)

2011-12-05
2016-02-16
Telecommunication Systems, Inc.
Special emergency call treatment based on the caller

US8984591B2
(en)

2011-12-16
2015-03-17
Telecommunications Systems, Inc.
Authentication via motion of wireless device movement

US9151845B2
(en)

*

2012-01-05
2015-10-06
Cambridge Silicon Radio Limited
Reverse frequency and time aiding

US9384339B2
(en)

2012-01-13
2016-07-05
Telecommunication Systems, Inc.
Authenticating cloud computing enabling secure services

US8688174B2
(en)

2012-03-13
2014-04-01
Telecommunication Systems, Inc.
Integrated, detachable ear bud device for a wireless phone

US9307372B2
(en)

2012-03-26
2016-04-05
Telecommunication Systems, Inc.
No responders online

US9544260B2
(en)

2012-03-26
2017-01-10
Telecommunication Systems, Inc.
Rapid assignment dynamic ownership queue

US9338153B2
(en)

2012-04-11
2016-05-10
Telecommunication Systems, Inc.
Secure distribution of non-privileged authentication credentials

WO2014028712A1
(en)

2012-08-15
2014-02-20
Telecommunication Systems, Inc.
Device independent caller data access for emergency calls

US9208346B2
(en)

2012-09-05
2015-12-08
Telecommunication Systems, Inc.
Persona-notitia intellection codifier

US9456301B2
(en)

2012-12-11
2016-09-27
Telecommunication Systems, Inc.
Efficient prisoner tracking

US9612341B2
(en)

*

2012-12-28
2017-04-04
Trimble Inc.
GNSS receiver positioning system

US9880286B2
(en)

2012-12-28
2018-01-30
Trimble Inc.
Locally measured movement smoothing of position fixes based on extracted pseudoranges

US9602974B2
(en)

2012-12-28
2017-03-21
Trimble Inc.
Dead reconing system based on locally measured movement

US8983047B2
(en)

2013-03-20
2015-03-17
Telecommunication Systems, Inc.
Index of suspicion determination for communications request

US9408034B2
(en)

2013-09-09
2016-08-02
Telecommunication Systems, Inc.
Extended area event for network based proximity discovery

US9516104B2
(en)

2013-09-11
2016-12-06
Telecommunication Systems, Inc.
Intelligent load balancer enhanced routing

US9479897B2
(en)

2013-10-03
2016-10-25
Telecommunication Systems, Inc.
SUPL-WiFi access point controller location based services for WiFi enabled mobile devices

US9548744B2
(en)

2014-08-18
2017-01-17
Qualcomm Incorporated
Compensating for hysteretic characteristics of crystal oscillators

RU2586076C1
(en)

*

2014-12-29
2016-06-10
Федеральное государственное бюджетное учреждение “4 Центральный научно-исследовательский институт Министерства обороны Российской Федерации”
Method of detecting tampering of accuracy characteristics of space navigation systems

EP3265847B1
(en)

2015-03-06
2021-02-24
Gatekeeper Systems, Inc.
Low-energy consumption location of movable objects

EP3344514B1
(en)

2015-09-04
2020-11-11
Gatekeeper Systems, Inc.
Estimating motion of wheeled carts

US10001541B2
(en)

2015-09-04
2018-06-19
Gatekeeper Systems, Inc.
Magnetometer and accelerometer calibration for cart navigation system

US11125888B2
(en)

2016-06-06
2021-09-21
Brian G. Agee
Multi-subband methods for reduced complexity, wideband blind resilient detection and geo-observable estimation of global navigation satellite signals

US10775510B2
(en)

2016-06-06
2020-09-15
Brian G. Agee
Blind despreading of civil GNSS signals for resilient PNT applications

WO2018165178A1
(en)

2017-03-08
2018-09-13
Gatekeeper Systems, Inc.
Navigation systems for wheeled carts

US10725185B2
(en)

*

2017-05-23
2020-07-28
Accord Ideation Private Limited
Sharing of a global navigation satellite system antenna with multiple global navigation satellite system receivers

FR3068140B1
(en)

*

2017-06-26
2019-08-16
Ubiscale

METHOD FOR UPDATING A SET OF ORBITAL PARAMETERS STOCKETED IN A GEOLOCATION BEACON, COMPUTER PROGRAM PRODUCT, CORRESPONDING UPDATING DEVICE AND BEAM.

RU2697811C2
(en)

*

2018-01-22
2019-08-20
Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации
Simulator of radio navigation signals

DE102019203331A1
(en)

*

2019-03-12
2020-09-17
Robert Bosch Gmbh

Method for calibrating an oscillator of a receiving device, device

US10575131B1
(en)

2019-05-30
2020-02-25
Snap Inc.
Wearable device location accuracy systems

US10560898B1
(en)

2019-05-30
2020-02-11
Snap Inc.
Wearable device location systems

US10582453B1
(en)

2019-05-30
2020-03-03
Snap Inc.
Wearable device location systems architecture

EP3865913A1
(en)

*

2020-02-14
2021-08-18
Semtech Corporation
Ultralow power gnss receiver

EP4174527A1
(en)

*

2021-10-27
2023-05-03
Semtech Corporation
Global navigation satellite system receiver

Family Cites Families (75)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4445118A
(en)

*

1981-05-22
1984-04-24
The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration
Navigation system and method

US4457006A
(en)

*

1981-11-16
1984-06-26
Sperry Corporation
Global positioning system receiver

DE3278915D1
(en)

*

1981-12-31
1988-09-22
Secr Defence Brit
Receivers for navigation satellite systems

US4797677A
(en)

*

1982-10-29
1989-01-10
Istac, Incorporated
Method and apparatus for deriving pseudo range from earth-orbiting satellites

US4785463A
(en)

*

1985-09-03
1988-11-15
Motorola, Inc.
Digital global positioning system receiver

US4701934A
(en)

*

1985-09-03
1987-10-20
Motorola, Inc.
Method of doppler searching in a digital GPS receiver

JPH0744485B2
(en)

*

1987-05-22
1995-05-15
三菱電機株式会社

Car phone equipment

US4910752A
(en)

1987-06-15
1990-03-20
Motorola, Inc.
Low power digital receiver

FI85636C
(en)

*

1988-08-19
1992-05-11
Nokia Mobira Oy

Procedure and switching for automatic, based on a calculator based on the frequency of a radio telephone

JPH0271184A
(en)

*

1988-09-06
1990-03-09
Anritsu Corp
Device for measuring gps location

JPH02196976A
(en)

*

1989-01-26
1990-08-03
Matsushita Electric Works Ltd
Gps position measuring system

US4959656A
(en)

*

1989-10-31
1990-09-25
The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration
Efficient detection and signal parameter estimation with application to high dynamic GPS receiver

US4998111A
(en)

*

1989-11-27
1991-03-05
Motorola, Inc.
CPS transform correlation receiver and method

AU642638B2
(en)

*

1989-12-11
1993-10-28
Caterpillar Inc.
Integrated vehicle positioning and navigation system, apparatus and method

GB2241623A
(en)

*

1990-02-28
1991-09-04
Philips Electronic Associated
Vehicle location system

JPH03269385A
(en)

*

1990-03-20
1991-11-29
Pioneer Electron Corp
Gps receiver

GB2245445A
(en)

*

1990-06-18
1992-01-02
Philips Electronic Associated
Method of and apparatus for obtaining vehicle heading information

US5103459B1
(en)

*

1990-06-25
1999-07-06
Qualcomm Inc
System and method for generating signal waveforms in a cdma cellular telephone system

US5043736B1
(en)

*

1990-07-27
1994-09-06
Cae Link Corp
Cellular position location system

US5434787A
(en)

1991-04-12
1995-07-18
Sharp Kabushiki Kaisha
System for measuring position by using global positioning system and receiver for global position system

US5225842A
(en)

*

1991-05-09
1993-07-06
Navsys Corporation
Vehicle tracking system employing global positioning system (gps) satellites

US5202829A
(en)

*

1991-06-10
1993-04-13
Trimble Navigation Limited
Exploration system and method for high-accuracy and high-confidence level relative position and velocity determinations

US5271034A
(en)

*

1991-08-26
1993-12-14
Avion Systems, Inc.
System and method for receiving and decoding global positioning satellite signals

US5385173A
(en)

*

1991-09-03
1995-01-31
American Pipe & Plastics, Inc.
Pipe liner composition

US5365447A
(en)

*

1991-09-20
1994-11-15
Dennis Arthur R
GPS and satelite navigation system

US5153598A
(en)

*

1991-09-26
1992-10-06
Alves Jr Daniel F
Global Positioning System telecommand link

US5379224A
(en)

*

1991-11-29
1995-01-03
Navsys Corporation
GPS tracking system

JPH05155397A
(en)

*

1991-12-02
1993-06-22
Toshiba Corp
Orbit estimation device

US5280744A
(en)

1992-01-27
1994-01-25
Alliedsignal Inc.
Method for aiming towed field artillery pieces

US5448773A
(en)

*

1992-02-05
1995-09-05
Trimble Navigation Limited
Long life portable global position system receiver

JPH05232210A
(en)

*

1992-02-20
1993-09-07
Kokusai Denshin Denwa Co Ltd
Positioning method and control method of moving body utilizing gas satellite

US5323322A
(en)

*

1992-03-05
1994-06-21
Trimble Navigation Limited
Networked differential GPS system

US5245634A
(en)

*

1992-03-23
1993-09-14
Motorola, Inc.
Base-site synchronization in a communication system

US5223844B1
(en)

*

1992-04-17
2000-01-25
Auto Trac Inc
Vehicle tracking and security system

JPH05297105A
(en)

*

1992-04-21
1993-11-12
Japan Radio Co Ltd
Gps signal reception processing device

CA2098660C
(en)

*

1992-06-23
1999-08-03
Gen Suganuma
Automatic frequency control circuit

US5430759A
(en)

*

1992-08-20
1995-07-04
Nexus 1994 Limited
Low-power frequency-hopped spread spectrum reverse paging system

IL104264A
(en)

*

1992-08-20
1996-07-23
Nexus Telecomm Syst
Remote position detrmination system

US5311194A
(en)

*

1992-09-15
1994-05-10
Navsys Corporation
GPS precision approach and landing system for aircraft

US5418537A
(en)

*

1992-11-18
1995-05-23
Trimble Navigation, Ltd.
Location of missing vehicles

US5430654A
(en)

*

1992-12-01
1995-07-04
Caterpillar Inc.
Method and apparatus for improving the accuracy of position estimates in a satellite based navigation system

CA2106534A1
(en)

1992-12-07
1994-06-08
Kristine Patricia Maine
Intelligent position tracking

US5365450A
(en)

*

1992-12-17
1994-11-15
Stanford Telecommunications, Inc.
Hybrid GPS/data line unit for rapid, precise, and robust position determination

FR2699713B1
(en)

1992-12-17
1995-03-24
Hubert Thomas

Method and device for remote control of an unmanned underwater vehicle.

US5523761A
(en)

1993-01-12
1996-06-04
Trimble Navigation Limited
Differential GPS smart antenna device

US5323163A
(en)

*

1993-01-26
1994-06-21
Maki Stanley C
All DOP GPS optimization

US5317323A
(en)

*

1993-03-05
1994-05-31
E-Systems, Inc.
Passive high accuracy geolocation system and method

US5379320A
(en)

*

1993-03-11
1995-01-03
Southern California Edison Company
Hitless ultra small aperture terminal satellite communication network

US5334987A
(en)

1993-04-01
1994-08-02
Spectra-Physics Laserplane, Inc.
Agricultural aircraft control system using the global positioning system

US5420592A
(en)

*

1993-04-05
1995-05-30
Radix Technologies, Inc.
Separated GPS sensor and processing system for remote GPS sensing and centralized ground station processing for remote mobile position and velocity determinations

US5420883A
(en)

*

1993-05-17
1995-05-30
Hughes Aircraft Company
Train location and control using spread spectrum radio communications

US5418538A
(en)

*

1993-05-21
1995-05-23
Trimble Navigation Limited
Rapid satellite signal acquisition in a satellite positioning system

WO1994028379A1
(en)

1993-05-28
1994-12-08
Trimble Navigation Limited
Combined pc/104 and satellite positioning system

US5389934A
(en)

1993-06-21
1995-02-14
The Business Edge Group, Inc.
Portable locating system

US5515062A
(en)

*

1993-08-11
1996-05-07
Motorola, Inc.
Location system and method with acquisition of accurate location parameters

US5412388A
(en)

*

1993-08-11
1995-05-02
Motorola, Inc.
Position ambiguity resolution

US5554993A
(en)

1994-01-04
1996-09-10
Panasonic Technologies, Inc.
Global position determining system and method

US5483549A
(en)

*

1994-03-04
1996-01-09
Stanford Telecommunications, Inc.
Receiver having for charge-coupled-device based receiver signal processing

US5512902A
(en)

1994-04-18
1996-04-30
Northrop Grumman Corporation
Stock locator system using GPS translator

US5491486A
(en)

*

1994-04-25
1996-02-13
General Electric Company
Mobile tracking units employing motion sensors for reducing power consumption therein

US5519760A
(en)

*

1994-06-22
1996-05-21
Gte Laboratories Incorporated
Cellular network-based location system

DE4424412A1
(en)

*

1994-07-12
1996-01-18
Esg Elektroniksystem Und Logis
Radio telecommunication system with satellite navigation for both mobile telephony and VHF radio reception

US5592173A
(en)

1994-07-18
1997-01-07
Trimble Navigation, Ltd
GPS receiver having a low power standby mode

US5626630A
(en)

1994-10-13
1997-05-06
Ael Industries, Inc.
Medical telemetry system using an implanted passive transponder

US5650770A
(en)

1994-10-27
1997-07-22
Schlager; Dan
Self-locating remote monitoring systems

US5594453A
(en)

1994-11-01
1997-01-14
Trimble Navigation, Ltd
GPS receiver having a rapid acquisition of GPS satellite signals

US5913170A
(en)

*

1994-11-16
1999-06-15
Highwaymaster Communications, Inc.
Locating system and method using a mobile communications network

US5574469A
(en)

1994-12-21
1996-11-12
Burlington Northern Railroad Company
Locomotive collision avoidance method and system

US5600329A
(en)

*

1995-06-30
1997-02-04
Honeywell Inc.
Differential satellite positioning system ground station with integrity monitoring

ES2206601T5
(en)

*

1995-10-09
2011-06-06
Snaptrack, Inc.

COMBINED GPS POSITION AND COMMUNICATIONS SYSTEM USING SHARED CIRCUITS.

US5841396A
(en)

1996-03-08
1998-11-24
Snaptrack, Inc.
GPS receiver utilizing a communication link

CA2667786C
(en)

*

1995-10-09
2012-07-31
Snaptrack, Inc.
Gps receiver and method for processing gps signals

GB9524754D0
(en)

*

1995-12-04
1996-04-24
Symmetricom Inc
Mobile position determination

KR100459834B1
(en)

1996-04-25
2005-01-31
서프 테크놀러지, 인코포레이티드

Spread Spectrum Receiver with Multi-Bit Correlator

US5663735A
(en)

1996-05-20
1997-09-02
Trimble Navigation Limited
GPS receiver using a radio signal for improving time to first fix

1996

1996-12-04
US
US08/759,523
patent/US5841396A/en
not_active
Expired – Lifetime

1997

1997-03-07
DK
DK97908910T
patent/DK0885492T3/en
active

1997-03-07
DE
DE1997638213
patent/DE69738213T2/en
not_active
Expired – Lifetime

1997-03-07
JP
JP53193697A
patent/JP2000506348A/en
active
Pending

1997-03-07
ES
ES97908910T
patent/ES2296306T3/en
not_active
Expired – Lifetime

1997-03-07
ES
ES07105832T
patent/ES2373819T3/en
not_active
Expired – Lifetime

1997-03-07
EP
EP10183782A
patent/EP2285018A3/en
not_active
Withdrawn

1997-03-07
AU
AU20702/97A
patent/AU2070297A/en
not_active
Abandoned

1997-03-07
EP
EP20100183754
patent/EP2267920A3/en
not_active
Withdrawn

1997-03-07
WO
PCT/US1997/003512
patent/WO1997033382A1/en
active
IP Right Grant

1997-03-07
PT
PT97908910T
patent/PT885492E/en
unknown

1997-03-07
EP
EP19970908910
patent/EP0885492B1/en
not_active
Expired – Lifetime

1998

1998-08-05
US
US09/129,599
patent/US6064336A/en
not_active
Expired – Lifetime

2000

2000-04-25
US
US09/558,692
patent/US6400314B1/en
not_active
Expired – Lifetime

2007

2007-09-04
JP
JP2007228963A
patent/JP2008003104A/en
active
Pending

2013

2013-05-07
JP
JP2013097604A
patent/JP5688115B2/en
not_active
Expired – Lifetime

Also Published As

Publication number
Publication date

JP2000506348A
(en)

2000-05-23

DK0885492T3
(en)

2008-02-11

EP0885492A1
(en)

1998-12-23

EP0885492A4
(en)

1999-02-03

US6400314B1
(en)

2002-06-04

ES2373819T3
(en)

2012-02-09

JP2008003104A
(en)

2008-01-10

ES2296306T3
(en)

2008-04-16

WO1997033382A1
(en)

1997-09-12

US6064336A
(en)

2000-05-16

EP2267920A2
(en)

2010-12-29

DE69738213D1
(en)

2007-11-29

EP2285018A3
(en)

2012-07-18

JP2013190437A
(en)

2013-09-26

JP5688115B2
(en)

2015-03-25

EP0885492B1
(en)

2007-10-17

EP2285018A2
(en)

2011-02-16

PT885492E
(en)

2007-12-31

EP2267920A3
(en)

2012-07-25

DE69738213T2
(en)

2008-07-17

US5841396A
(en)

1998-11-24

Similar Documents

Publication
Publication Date
Title

AU5587698A
(en)

1998-06-29

An improved gps receiver utilizing a communication link

AU2070297A
(en)

1997-09-22

An improved gps receiver utilizing a communication link

HK1029461A1
(en)

2001-03-30

A multi-band communication receiver and a method for receiving a communication signal

AU2368697A
(en)

1997-12-04

Mobile communication system

AU3753097A
(en)

1998-03-19

Mobile communication system

GB2297224B
(en)

1999-03-24

Radio communication system

AU1050999A
(en)

1999-06-07

Reverse link for a satellite communication network

AU4509897A
(en)

1998-05-14

Radio receiver

AU6111398A
(en)

1998-08-25

Communication based vehicle positioning reference system

GB2298997B
(en)

1997-09-03

Radio communication system

AU2616597A
(en)

1998-01-08

Radio communication apparatus having a high receiving sensitivity

AU4276997A
(en)

1998-04-30

Receiver

AU2273099A
(en)

2000-07-03

A receiver

AU2909897A
(en)

1998-01-05

Secure communication

AU3418997A
(en)

1998-02-19

Radio selective call receiver

AU7637398A
(en)

1999-03-01

Communication system

AU1819400A
(en)

2000-06-05

Transmitting information over a communication link

GB9616780D0
(en)

1996-09-25

Radio communication system

AU6416799A
(en)

2001-05-10

Automatic person-following communication system

AU5638898A
(en)

1998-09-10

Multinetwork communication system

AU6804298A
(en)

1998-12-03

A multi-modulation frame for a radio communication system

AU4573997A
(en)

1998-05-15

Radio communication system

AU5739098A
(en)

1998-09-10

Communication method, transmitter and receiver

AU4514197A
(en)

1998-05-21

Mobile communication system

AU1667700A
(en)

2000-06-26

Radio communication system

Download PDF in English

None