GB2137055B - Voice communication system - Google Patents

Voice communication system

Info

Publication number
GB2137055B
GB2137055B GB08306855A GB8306855A GB2137055B GB 2137055 B GB2137055 B GB 2137055B GB 08306855 A GB08306855 A GB 08306855A GB 8306855 A GB8306855 A GB 8306855A GB 2137055 B GB2137055 B GB 2137055B
Authority
GB
United Kingdom
Prior art keywords
communication system
voice communication
voice
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
Application number
GB08306855A
Other versions
GB2137055A (en
GB8306855D0 (en
Inventor
William Edward Brierley
Michael Sydney Wellington
Alan Peter Panaghiston
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.)
Allard Way Holdings Ltd
Original Assignee
Marconi Avionics 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 Avionics Ltd filed Critical Marconi Avionics Ltd
Priority to GB08306855A priority Critical patent/GB2137055B/en
Publication of GB8306855D0 publication Critical patent/GB8306855D0/en
Publication of GB2137055A publication Critical patent/GB2137055A/en
Application granted granted Critical
Publication of GB2137055B publication Critical patent/GB2137055B/en
Expired 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)
  • Circuit For Audible Band Transducer (AREA)
GB08306855A 1983-03-12 1983-03-12 Voice communication system Expired GB2137055B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08306855A GB2137055B (en) 1983-03-12 1983-03-12 Voice communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08306855A GB2137055B (en) 1983-03-12 1983-03-12 Voice communication system

Publications (3)

Publication Number Publication Date
GB8306855D0 GB8306855D0 (en) 1983-04-20
GB2137055A GB2137055A (en) 1984-09-26
GB2137055B true GB2137055B (en) 1986-11-12

Family

ID=10539453

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08306855A Expired GB2137055B (en) 1983-03-12 1983-03-12 Voice communication system

Country Status (1)

Country Link
GB (1) GB2137055B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0395771A1 (en) * 1989-04-22 1990-11-07 tetronik Kommunikationstechnik GmbH Distress calling device
US5881156A (en) * 1995-06-19 1999-03-09 Treni; Michael Portable, multi-functional, multi-channel wireless conference microphone

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB369636A (en) * 1929-06-11 1932-03-23 Electrical Res Prod Inc Improvements in or relating to telephonic and like signalling transmission systems
US1837316A (en) * 1929-09-10 1931-12-22 American Telephone & Telegraph Voice operated control arrangement for telephone cable systems
US1830220A (en) * 1930-07-09 1931-11-03 Bell Telephone Labor Inc Transmission control
JPS535008B2 (en) * 1972-05-15 1978-02-23
IT1030881B (en) * 1973-12-10 1979-04-10 Cit Alcatel SEMI SUPPRESSOR OF ECO FOR A TERMINAL OF A FOUR WIRE POWER LINE
US3942116A (en) * 1975-03-13 1976-03-02 California Microwave, Inc. Transceiver having improved voice actuated carrier and echo suppression circuit

Also Published As

Publication number Publication date
GB2137055A (en) 1984-09-26
GB8306855D0 (en) 1983-04-20

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20030311