BE813897A - Systeme de radiocommunication - Google Patents

Systeme de radiocommunication

Info

Publication number
BE813897A
BE813897A BE143359A BE143359A BE813897A BE 813897 A BE813897 A BE 813897A BE 143359 A BE143359 A BE 143359A BE 143359 A BE143359 A BE 143359A BE 813897 A BE813897 A BE 813897A
Authority
BE
Belgium
Prior art keywords
radiocommunication system
radiocommunication
Prior art date
Application number
BE143359A
Other languages
English (en)
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 filed Critical
Publication of BE813897A publication Critical patent/BE813897A/fr

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
    • H04B1/54—Circuits using the same frequency for two directions of communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
BE143359A 1973-08-08 1974-04-18 Systeme de radiocommunication BE813897A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2340136A DE2340136C1 (de) 1973-08-08 1973-08-08 Funkuebertragungssystem

Publications (1)

Publication Number Publication Date
BE813897A true BE813897A (fr) 1978-02-24

Family

ID=5889203

Family Applications (1)

Application Number Title Priority Date Filing Date
BE143359A BE813897A (fr) 1973-08-08 1974-04-18 Systeme de radiocommunication

Country Status (10)

Country Link
US (1) US4145657A (fr)
BE (1) BE813897A (fr)
CA (1) CA1069979A (fr)
DE (1) DE2340136C1 (fr)
DK (1) DK347774A (fr)
FR (1) FR2371096A1 (fr)
GB (1) GB1506710A (fr)
IT (1) IT1031016B (fr)
NL (1) NL155695B (fr)
NO (1) NO141240C (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55109042A (en) * 1979-02-14 1980-08-21 Nec Corp Selective individual calling system
DE2906438A1 (de) * 1979-02-20 1980-08-28 Bosch Gmbh Robert Sprechfunksystem mit mehreren von der betriebsart bedingtes gegensprechen auf die betriebsart wechselsprechen umschaltbaren sprechfunkgeraeten
US4287588A (en) * 1979-04-12 1981-09-01 The United States Of America As Represented By The Secretary Of The Army Multiple access, time-division multiplex, satellite communications system
US4352201A (en) * 1979-04-30 1982-09-28 M.L. Engineering (Plymouth) Limited Data transmission system
DE3301351A1 (de) * 1983-01-18 1984-07-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur digitalen sprachuebertragung ueber einen einzigen funkkanal
US4675863A (en) 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
US7106819B1 (en) 1987-11-20 2006-09-12 Interdigital Technology Corporation Plural subscriber system utilizing synchronized timeslots on a single frequency
US5930297A (en) * 1989-11-20 1999-07-27 Interdigital Technology Corporation Base station emulator
US4935927A (en) * 1987-11-20 1990-06-19 International Mobile Machines Corporation Base station emulator
US5495508A (en) * 1987-11-20 1996-02-27 Interdigital Technology Corporation Base station emulator
US4949335A (en) * 1989-01-23 1990-08-14 Motorola, Inc. A TDM quasi-duplex system
US5025442A (en) * 1989-01-23 1991-06-18 Motorola, Inc. TDM/FDM communication system with pseudo-duplex capability
US5515375A (en) * 1993-07-30 1996-05-07 Motorola, Inc. Method and apparatus for multiplexing fixed length message data and variably coded speech
US6845087B1 (en) 1999-09-20 2005-01-18 Northrop Grumman Corporation Wideband wireless communications architecture
US7184466B1 (en) * 2002-09-12 2007-02-27 Xilinx, Inc. Radio frequency data conveyance system including configurable integrated circuits

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2510316A (en) * 1948-05-18 1950-06-06 Union Switch & Signal Co Emergency break-in system for channel communication systems
US3118018A (en) * 1959-03-02 1964-01-14 Bell Telephone Labor Inc Mobile radio telephone integrated system
FR95689E (fr) * 1967-06-16 1971-04-16 Materiel Telephonique Systeme de liaison radio mobile.
FR2032098A5 (fr) * 1969-02-19 1970-11-20 Cit Alcatel
FR2044847A5 (fr) * 1969-04-02 1971-02-26 Materiel Telephonique
AT338877B (de) * 1969-07-23 1977-09-26 Sits Soc It Telecom Siemens Fernmeldesystem mit einer anzahl von zweirichtungskanalen, von denen jeweils einer nur wahrend der dauer der verbindung zwischen wenigstens zwei sende-empfangs-geraten belegt ist
US3548106A (en) * 1969-07-24 1970-12-15 Anaconda Wire & Cable Co Rural subscriber telephone system
US3846827A (en) * 1973-02-12 1974-11-05 Cambridge Res & Dev Group Speech compressor-expander with signal sample zero reset
US3803363A (en) * 1972-01-17 1974-04-09 F Lee Apparatus for the modification of the time duration of waveforms
US3789137A (en) * 1972-04-07 1974-01-29 Westinghouse Electric Corp Time compression of audio signals

Also Published As

Publication number Publication date
DK347774A (da) 1977-10-17
NL155695B (nl) 1978-01-16
US4145657A (en) 1979-03-20
CA1069979A (fr) 1980-01-15
GB1506710A (en) 1978-04-12
NO141240C (no) 1980-01-30
NO141240B (no) 1979-10-22
IT1031016B (it) 1979-04-30
FR2371096A1 (fr) 1978-06-09
DE2340136C1 (de) 1978-04-27
NO742777L (no) 1977-10-19

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: SIEMENS A.G.

Effective date: 19920430