GB1439399A – Radio repeater system
– Google Patents
GB1439399A – Radio repeater system
– Google Patents
Radio repeater system
Info
Publication number
GB1439399A
GB1439399A
GB5564373A
GB5564373A
GB1439399A
GB 1439399 A
GB1439399 A
GB 1439399A
GB 5564373 A
GB5564373 A
GB 5564373A
GB 5564373 A
GB5564373 A
GB 5564373A
GB 1439399 A
GB1439399 A
GB 1439399A
Authority
GB
United Kingdom
Prior art keywords
repeater system
radio repeater
radio
repeater
Prior art date
1973-01-29
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.)
Expired
Application number
GB5564373A
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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.)
1973-01-29
Filing date
1973-11-30
Publication date
1976-06-16
1973-11-30
Application filed by Motorola Inc
filed
Critical
Motorola Inc
1976-06-16
Publication of GB1439399A
publication
Critical
patent/GB1439399A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04B—TRANSMISSION
H04B7/00—Radio transmission systems, i.e. using radiation field
H04B7/14—Relay systems
H04B7/15—Active relay systems
H04B7/155—Ground-based stations
H04B7/17—Ground-based stations employing pulse modulation, e.g. pulse code modulation
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
H04B1/40—Circuits
H04B1/44—Transmit/receive switching
H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
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
H04B1/40—Circuits
H04B1/54—Circuits using the same frequency for two directions of communication
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04B—TRANSMISSION
H04B3/00—Line transmission systems
H04B3/60—Systems for communication between relatively movable stations, e.g. for communication with lift
GB5564373A
1973-01-29
1973-11-30
Radio repeater system
Expired
GB1439399A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US00327332A
US3825829A
(en)
1973-01-29
1973-01-29
Radio system employing simultaneously triggered pulse repeaters
Publications (1)
Publication Number
Publication Date
GB1439399A
true
GB1439399A
(en)
1976-06-16
Family
ID=23276131
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB5564373A
Expired
GB1439399A
(en)
1973-01-29
1973-11-30
Radio repeater system
Country Status (6)
Country
Link
US
(1)
US3825829A
(en)
JP
(1)
JPS49111502A
(en)
CA
(1)
CA1000364A
(en)
DE
(1)
DE2404116A1
(en)
FR
(1)
FR2215760A1
(en)
GB
(1)
GB1439399A
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2214755A
(en)
*
1988-01-29
1989-09-06
Walmore Electronics Limited
Distributed antenna system
USRE35736E
(en)
*
1988-01-29
1998-02-24
Allen Telecom Group, Inc.
Distributed antenna system
Families Citing this family (13)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE3122619A1
(en)
*
1981-06-06
1983-03-03
Bergwerksverband Gmbh, 4300 Essen
METHOD FOR OPERATING AN INFORMATION SYSTEM, ESPECIALLY FOR UNDERGROUND MINING, AND DEVICE THEREFOR
DE3206133A1
(en)
*
1982-02-20
1983-09-01
Robert Bosch Gmbh, 7000 Stuttgart
METHOD FOR RADIO TRANSMISSION OF DIGITAL INFORMATION BY MEANS OF A TRANSMISSION FREQUENCY
US4479245A
(en)
*
1982-12-21
1984-10-23
Motorola, Inc.
Same frequency repeater for a multiple repeater system
US4794620A
(en)
*
1984-07-06
1988-12-27
International Anasazi, Inc.
Radio frequency modem and method
US4745600A
(en)
*
1985-07-09
1988-05-17
Codex Corporation
Network collision detection and avoidance apparatus
WO1988005231A1
(en)
*
1987-01-12
1988-07-14
Motorola, Inc.
Multiple frequency radio system employing pulse repeaters
FI77131C
(en)
*
1987-01-22
1989-01-10
Outokumpu Oy
Device for providing bi-directional communication in underground spaces
US5467290A
(en)
*
1993-08-18
1995-11-14
Atlantic Richfield Company
Survey system and method
US20020115455A1
(en)
*
2001-02-22
2002-08-22
Siemens Information And Communication Products, Llc
Extended range cordless telephone system and method
JP2004179801A
(en)
2002-11-25
2004-06-24
Keio Gijuku
Uwb relaying apparatus and uwb communication apparatus
US7546094B2
(en)
2004-08-27
2009-06-09
International Business Machines Corporation
Method and system for deploying a wireless repeater
DE102004042560A1
(en)
*
2004-09-02
2006-03-09
Siemens Ag
Easy to install relay for adjusting signals for retransmission
US10666323B1
(en)
*
2018-12-13
2020-05-26
At&T Intellectual Property I, L.P.
Methods and apparatus for monitoring conditions to switch between modes of transmission
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2340590A
(en)
*
1939-10-13
1944-02-01
Hennig Fritz
Telegraphy transmitter
US2533269A
(en)
*
1941-08-29
1950-12-12
Int Standard Electric Corp
Pulse radio communication system
US2425315A
(en)
*
1944-02-17
1947-08-12
Rca Corp
Pulse communication system
NL277908A
(en)
*
1961-05-02
1973
1973-01-29
US
US00327332A
patent/US3825829A/en
not_active
Expired – Lifetime
1973-11-19
CA
CA186,103A
patent/CA1000364A/en
not_active
Expired
1973-11-30
GB
GB5564373A
patent/GB1439399A/en
not_active
Expired
1974
1974-01-28
FR
FR7402677A
patent/FR2215760A1/fr
not_active
Withdrawn
1974-01-29
DE
DE2404116A
patent/DE2404116A1/en
active
Pending
1974-01-29
JP
JP49011537A
patent/JPS49111502A/ja
active
Pending
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2214755A
(en)
*
1988-01-29
1989-09-06
Walmore Electronics Limited
Distributed antenna system
GB2214755B
(en)
*
1988-01-29
1992-06-24
Walmore Electronics Limited
Distributed antenna system
USRE35736E
(en)
*
1988-01-29
1998-02-24
Allen Telecom Group, Inc.
Distributed antenna system
Also Published As
Publication number
Publication date
JPS49111502A
(en)
1974-10-24
US3825829A
(en)
1974-07-23
DE2404116A1
(en)
1974-08-01
FR2215760A1
(en)
1974-08-23
CA1000364A
(en)
1976-11-23
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Legal Events
Date
Code
Title
Description
1976-10-27
PS
Patent sealed [section 19, patents act 1949]
1981-07-08
PCNP
Patent ceased through non-payment of renewal fee
