AU5767180A – Digital frequency selector
– Google Patents
AU5767180A – Digital frequency selector
– Google Patents
Digital frequency selector
Info
Publication number
AU5767180A
AU5767180A
AU57671/80A
AU5767180A
AU5767180A
AU 5767180 A
AU5767180 A
AU 5767180A
AU 57671/80 A
AU57671/80 A
AU 57671/80A
AU 5767180 A
AU5767180 A
AU 5767180A
AU 5767180 A
AU5767180 A
AU 5767180A
Authority
AU
Australia
Prior art keywords
digital frequency
frequency selector
selector
digital
frequency
Prior art date
1979-04-27
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.)
Granted
Application number
AU57671/80A
Other versions
AU539806B2
(en
Inventor
Daniel Simon Gregoire Hoefkens
Dermond Joseph Kavanagh O:reilly
Willi Arthur Henri Ruys
Guido Maria Josepha Benedikt Thyssens
Leopold Paul Verbist
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.)
Alcatel Lucent NV
Original Assignee
International Standard Electric Corp
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.)
1979-04-27
Filing date
1980-04-22
Publication date
1980-10-30
1980-04-22
Application filed by International Standard Electric Corp
filed
Critical
International Standard Electric Corp
1980-10-30
Publication of AU5767180A
publication
Critical
patent/AU5767180A/en
1984-10-18
Application granted
granted
Critical
1984-10-18
Publication of AU539806B2
publication
Critical
patent/AU539806B2/en
2000-04-22
Anticipated expiration
legal-status
Critical
Status
Ceased
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04Q—SELECTING
H04Q1/00—Details of selecting apparatus or arrangements
H04Q1/18—Electrical details
H04Q1/30—Signalling arrangements; Manipulation of signalling currents
H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
H04Q1/4575—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals which are transmitted in digital form
AU57671/80A
1979-04-27
1980-04-22
Digital frequency selector
Ceased
AU539806B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
NL7903346
1979-04-27
NL7903346A
NL7903346A
(en)
1979-04-27
1979-04-27
DIGITAL SIGNALING SYSTEM.
Publications (2)
Publication Number
Publication Date
AU5767180A
true
AU5767180A
(en)
1980-10-30
AU539806B2
AU539806B2
(en)
1984-10-18
Family
ID=19833070
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU57671/80A
Ceased
AU539806B2
(en)
1979-04-27
1980-04-22
Digital frequency selector
Country Status (13)
Country
Link
US
(1)
US4355405A
(en)
JP
(1)
JPS55159688A
(en)
AR
(1)
AR228738A1
(en)
AU
(1)
AU539806B2
(en)
BE
(1)
BE882941A
(en)
BR
(1)
BR8002591A
(en)
CH
(1)
CH655419B
(en)
DE
(1)
DE3015567C2
(en)
ES
(1)
ES8101290A1
(en)
FR
(1)
FR2455405B1
(en)
IT
(1)
IT1196912B
(en)
MX
(1)
MX149459A
(en)
NL
(1)
NL7903346A
(en)
Families Citing this family (17)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2512306A1
(en)
*
1981-08-27
1983-03-04
Telecommunications Sa
DIGITAL FREQUENCY RECOGNITION DEVICE
NL8200051A
(en)
*
1982-01-08
1983-08-01
Philips Nv
DEVICE AND METHOD FOR DETECTING MULTIFREQUENCY TONE CODE SIGNALS
NL8502008A
(en)
*
1985-07-12
1987-02-02
Philips Nv
RECEPTION DEVICE FOR RECOGNIZING A NUMBER OF DIFFERENT AND PRE-DETERMINED FREQUENCY SIGNALING COMPONENTS UNDER PROTECTION OF AN INTERFERENCE / VOICE SIGNAL MONITORING FUNCTION.
DD259987A3
(en)
*
1986-07-07
1988-09-14
Rft Nachrichtenelektronik Albe
METHOD AND ARRANGEMENT FOR LANGUAGE PROTECTION IN MFC-TASTWAHLMPFAENGERN
US4845499A
(en)
*
1987-11-02
1989-07-04
Ag Communication Systems Corporation
Method for generating PCM logarithmic values from linear values
GB2241853A
(en)
*
1990-03-08
1991-09-11
British Aerospace
Digital signal processing apparatus comprising architectures for digital multiplexing and demultiplexing.
US5748683A
(en)
*
1994-12-29
1998-05-05
Motorola, Inc.
Multi-channel transceiver having an adaptive antenna array and method
JP3530193B2
(en)
*
1994-12-29
2004-05-24
モトローラ・インコーポレイテッド
Broadband frequency signal digitizer and method
US5854813A
(en)
*
1994-12-29
1998-12-29
Motorola, Inc.
Multiple access up converter/modulator and method
US5754597A
(en)
*
1994-12-29
1998-05-19
Motorola, Inc.
Method and apparatus for routing a digitized RF signal to a plurality of paths
US5579341A
(en)
*
1994-12-29
1996-11-26
Motorola, Inc.
Multi-channel digital transceiver and method
US5668836A
(en)
*
1994-12-29
1997-09-16
Motorola, Inc.
Split frequency band signal digitizer and method
US5602874A
(en)
*
1994-12-29
1997-02-11
Motorola, Inc.
Method and apparatus for reducing quantization noise
US5710763A
(en)
*
1995-07-31
1998-01-20
Motorola, Inc.
Filtered fast Fourier transmultiplexer and method
GB2330727B
(en)
*
1997-10-24
2002-10-09
Mitel Corp
Tone and periodical signal detection
US7623826B2
(en)
*
2004-07-22
2009-11-24
Frank Pergal
Wireless repeater with arbitrary programmable selectivity
US10133549B1
(en)
*
2017-12-04
2018-11-20
Kyocera Document Solutions Inc.
Systems and methods for implementing a synchronous FIFO with registered outputs
Family Cites Families (11)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3150232A
(en)
*
1961-02-06
1964-09-22
Edward R Schmidt
Variable damping circuits
US3436487A
(en)
*
1965-09-14
1969-04-01
Bell Telephone Labor Inc
Telephone signaling arrangement
FR2141502B1
(en)
*
1971-06-01
1973-06-29
Ibm France
US3863030A
(en)
*
1972-06-01
1975-01-28
Gte Automatic Electric Lab Inc
Pcm tone receiver using digital spectrum analysis
FR2191827A5
(en)
*
1972-06-27
1974-02-01
Socotel Mixte D Veloppem
US3824471A
(en)
*
1972-12-01
1974-07-16
Gte Automatic Electric Lab Inc
Pcm tone receiver using floating-point digital spectrum analysis
NL7312548A
(en)
*
1973-09-12
1975-03-14
Bell Telephone Mfg
MULTIFREQUENT SIGNALING SYSTEM.
FR2295665A1
(en)
*
1974-12-18
1976-07-16
Labo Cent Telecommunicat
MULTI-FREQUENCY DIGITAL SIGNAL RECEIVER
FR2299769A1
(en)
*
1975-01-31
1976-08-27
Telecommunications Sa
APPLICATION PROCESS
DE2553258C3
(en)
*
1975-11-27
1980-07-03
Standard Elektrik Lorenz Ag, 7000 Stuttgart
Circuit arrangement for a digital multi-frequency character receiver
IT1072242B
(en)
*
1976-12-17
1985-04-10
Cselt Centro Studi Lab Telecom
PROCEDURE AND DEVICE FOR THE RECOGNITION OF TELEPHONE SIGNALS IN MULTIFREQUENCY CODE CONVERTED IN NUMERICAL FORM
1979
1979-04-27
NL
NL7903346A
patent/NL7903346A/en
not_active
Application Discontinuation
1980
1980-04-22
AU
AU57671/80A
patent/AU539806B2/en
not_active
Ceased
1980-04-23
DE
DE3015567A
patent/DE3015567C2/en
not_active
Expired
1980-04-23
US
US06/143,055
patent/US4355405A/en
not_active
Expired – Lifetime
1980-04-24
BE
BE2/58529A
patent/BE882941A/en
not_active
IP Right Cessation
1980-04-24
IT
IT21664/80A
patent/IT1196912B/en
active
1980-04-25
AR
AR280818A
patent/AR228738A1/en
active
1980-04-25
ES
ES490898A
patent/ES8101290A1/en
not_active
Expired
1980-04-25
MX
MX182107A
patent/MX149459A/en
unknown
1980-04-28
BR
BR8002591A
patent/BR8002591A/en
unknown
1980-04-28
FR
FR8009534A
patent/FR2455405B1/en
not_active
Expired
1980-04-28
CH
CH325380A
patent/CH655419B/de
unknown
1980-04-28
JP
JP5553680A
patent/JPS55159688A/en
active
Granted
Also Published As
Publication number
Publication date
US4355405A
(en)
1982-10-19
CH655419B
(en)
1986-04-15
AU539806B2
(en)
1984-10-18
FR2455405B1
(en)
1987-08-07
AR228738A1
(en)
1983-04-15
MX149459A
(en)
1983-11-08
DE3015567C2
(en)
1986-09-11
JPS55159688A
(en)
1980-12-11
BE882941A
(en)
1980-10-24
NL7903346A
(en)
1980-10-29
BR8002591A
(en)
1980-12-09
DE3015567A1
(en)
1980-11-13
ES490898A0
(en)
1980-12-01
JPH0127640B2
(en)
1989-05-30
IT8021664D0
(en)
1980-04-24
IT1196912B
(en)
1988-11-25
ES8101290A1
(en)
1980-12-01
FR2455405A1
(en)
1980-11-21
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