GB2237704B - Radio communication apparatus - Google Patents

Radio communication apparatus

Info

Publication number
GB2237704B
GB2237704B GB8922852A GB8922852A GB2237704B GB 2237704 B GB2237704 B GB 2237704B GB 8922852 A GB8922852 A GB 8922852A GB 8922852 A GB8922852 A GB 8922852A GB 2237704 B GB2237704 B GB 2237704B
Authority
GB
United Kingdom
Prior art keywords
radio communication
communication apparatus
radio
communication
Prior art date
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 - Fee Related
Application number
GB8922852A
Other versions
GB2237704A (en
GB8922852D0 (en
Inventor
Colin Alexander Wilson
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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.)
Filing date
Publication date
Application filed by Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB8922852A priority Critical patent/GB2237704B/en
Publication of GB8922852D0 publication Critical patent/GB8922852D0/en
Publication of GB2237704A publication Critical patent/GB2237704A/en
Application granted granted Critical
Publication of GB2237704B publication Critical patent/GB2237704B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H04B1/38—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
    • H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
GB8922852A 1989-10-11 1989-10-11 Radio communication apparatus Expired - Fee Related GB2237704B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8922852A GB2237704B (en) 1989-10-11 1989-10-11 Radio communication apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8922852A GB2237704B (en) 1989-10-11 1989-10-11 Radio communication apparatus

Publications (3)

Publication Number Publication Date
GB8922852D0 GB8922852D0 (en) 1989-11-29
GB2237704A GB2237704A (en) 1991-05-08
GB2237704B true GB2237704B (en) 1994-02-23

Family

ID=10664372

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8922852A Expired - Fee Related GB2237704B (en) 1989-10-11 1989-10-11 Radio communication apparatus

Country Status (1)

Country Link
GB (1) GB2237704B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2271247B (en) * 1992-10-05 1997-02-19 Motorola Israel Ltd A radio telephone for a vehicle
KR100310342B1 (en) 1999-07-21 2001-11-01 윤종용 Method for switching the transmission/receipt state of voice signal in case of the speaker-phone mode in a mobile phone

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1021347A (en) * 1962-02-21 1966-03-02 Standard Telephones Cables Ltd Audio actuated switches
US4366578A (en) * 1981-02-19 1982-12-28 Foster Airdata Systems Inc. Transmit/receive mode protection arrangement
US4392244A (en) * 1980-02-29 1983-07-05 Pilot Mannenhitsu Kabushiki Kaisha Automatic transmission and reception control system
WO1985001411A1 (en) * 1983-09-14 1985-03-28 Keller, René Telephone transmission installation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1021347A (en) * 1962-02-21 1966-03-02 Standard Telephones Cables Ltd Audio actuated switches
US4392244A (en) * 1980-02-29 1983-07-05 Pilot Mannenhitsu Kabushiki Kaisha Automatic transmission and reception control system
US4366578A (en) * 1981-02-19 1982-12-28 Foster Airdata Systems Inc. Transmit/receive mode protection arrangement
WO1985001411A1 (en) * 1983-09-14 1985-03-28 Keller, René Telephone transmission installation

Also Published As

Publication number Publication date
GB2237704A (en) 1991-05-08
GB8922852D0 (en) 1989-11-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941011