FR2363244A1 - Systeme de transmission bilaterale entre une station principale et des stations secondaires - Google Patents

Systeme de transmission bilaterale entre une station principale et des stations secondaires

Info

Publication number
FR2363244A1
FR2363244A1 FR7625801A FR7625801A FR2363244A1 FR 2363244 A1 FR2363244 A1 FR 2363244A1 FR 7625801 A FR7625801 A FR 7625801A FR 7625801 A FR7625801 A FR 7625801A FR 2363244 A1 FR2363244 A1 FR 2363244A1
Authority
FR
France
Prior art keywords
main station
secondary stations
station
transmission system
bilateral transmission
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.)
Granted
Application number
FR7625801A
Other languages
English (en)
Other versions
FR2363244B1 (fr
Inventor
Rene Lechevin
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7625801A priority Critical patent/FR2363244A1/fr
Priority to IL52793A priority patent/IL52793A0/xx
Priority to GB35362/77A priority patent/GB1550731A/en
Priority to US05/827,111 priority patent/US4155039A/en
Priority to NL7709270A priority patent/NL7709270A/xx
Priority to CA285,370A priority patent/CA1092261A/fr
Priority to JP10248177A priority patent/JPS53127213A/ja
Priority to DE2738624A priority patent/DE2738624C2/de
Publication of FR2363244A1 publication Critical patent/FR2363244A1/fr
Application granted granted Critical
Publication of FR2363244B1 publication Critical patent/FR2363244B1/fr
Granted 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
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • 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
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/408—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency the transmitter oscillator frequency being identical to the receiver local oscillator frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

La présente invention concerne les raccordements radioélectriques bilatéraux entre une station principale groupant les informations à recevoir de, et à transmettre a, une pluralité de stations secondaires. Chaque station comporte un émetteur récepteur hyperfréquence à cavité oscillatrice utilisée à la fois comme émetteur et oscillateur local, la valeur de la fréquence intermédiaire étant caractéristique d'une station secondaire déterminée. La station principale reçoit distinctement chacune des fréquences intermédiaires et est modulée par un signal multiplex formé par les informations destinées à chacune des stations secondaires. Application aux structures terminales des réseaux de télécommunication importants.
FR7625801A 1976-08-26 1976-08-26 Systeme de transmission bilaterale entre une station principale et des stations secondaires Granted FR2363244A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7625801A FR2363244A1 (fr) 1976-08-26 1976-08-26 Systeme de transmission bilaterale entre une station principale et des stations secondaires
IL52793A IL52793A0 (en) 1976-08-26 1977-08-22 A two-way transmission system between a mains station and secondary stations
US05/827,111 US4155039A (en) 1976-08-26 1977-08-23 Two-way transmission system between a main station and secondary stations
NL7709270A NL7709270A (nl) 1976-08-26 1977-08-23 Transmissiestelsel.
GB35362/77A GB1550731A (en) 1976-08-26 1977-08-23 Two-way radio transmission system between a main station and secondary stations
CA285,370A CA1092261A (fr) 1976-08-26 1977-08-24 Systeme de radiotransmission bidirectionnel entre une station principale et des stations secondaires
JP10248177A JPS53127213A (en) 1976-08-26 1977-08-26 Bilateral transmission system
DE2738624A DE2738624C2 (de) 1976-08-26 1977-08-26 System zur zweiseitigen Übertragung zwischen einer Hauptstation und n Nebenstationen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7625801A FR2363244A1 (fr) 1976-08-26 1976-08-26 Systeme de transmission bilaterale entre une station principale et des stations secondaires

Publications (2)

Publication Number Publication Date
FR2363244A1 true FR2363244A1 (fr) 1978-03-24
FR2363244B1 FR2363244B1 (fr) 1980-10-31

Family

ID=9177154

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625801A Granted FR2363244A1 (fr) 1976-08-26 1976-08-26 Systeme de transmission bilaterale entre une station principale et des stations secondaires

Country Status (8)

Country Link
US (1) US4155039A (fr)
JP (1) JPS53127213A (fr)
CA (1) CA1092261A (fr)
DE (1) DE2738624C2 (fr)
FR (1) FR2363244A1 (fr)
GB (1) GB1550731A (fr)
IL (1) IL52793A0 (fr)
NL (1) NL7709270A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325140A (en) * 1978-10-06 1982-04-13 The United States Of America As Represented By The Scretary Of The Air Force Full duplex communication system apparatus using frequency selective limiters
US4750036A (en) * 1986-05-14 1988-06-07 Radio Telcom & Technology, Inc. Interactive television and data transmission system
US5177604A (en) * 1986-05-14 1993-01-05 Radio Telcom & Technology, Inc. Interactive television and data transmission system
JPS63141417A (ja) * 1986-12-03 1988-06-13 Fujitsu Ltd 無線送受信装置のチャンネル増減方式
US5327237A (en) * 1991-06-14 1994-07-05 Wavephore, Inc. Transmitting data with video
US5617148A (en) * 1991-06-14 1997-04-01 Wavephore, Inc. Filter by-pass for transmitting an additional signal with a video signal
US5559559A (en) * 1991-06-14 1996-09-24 Wavephore, Inc. Transmitting a secondary signal with dynamic injection level control
US5387941A (en) * 1991-06-14 1995-02-07 Wavephore, Inc. Data with video transmitter
US5410360A (en) * 1991-06-14 1995-04-25 Wavephore, Inc. Timing control for injecting a burst and data into a video signal
US5831679A (en) * 1991-06-14 1998-11-03 Wavephore, Inc. Network for retrieval and video transmission of information
DE4227990C2 (de) * 1992-08-21 2001-10-18 Cell Gmbh Q Funkübertragungsverfahren mittels einer ortsfesten Basisstation und einer Vielzahl voneinander unabhängiger ortsfester Basisstationen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1077740A (en) * 1963-09-21 1967-08-02 Telefunken Patent Improvements in or relating to a satellite communication system
US3553380A (en) * 1968-10-25 1971-01-05 Itt Multiplexing system
US3546386A (en) * 1968-12-12 1970-12-08 Nasa Satellite communication system and method
US3804988A (en) * 1972-07-14 1974-04-16 Carrier Tel Corp America Inc Carrier system for efficient connection of telephone subscribers to central office
US3925729A (en) * 1974-08-29 1975-12-09 United Technologies Corp Skirt-tuned single oscillator transceiver

Also Published As

Publication number Publication date
JPS53127213A (en) 1978-11-07
US4155039A (en) 1979-05-15
IL52793A0 (en) 1977-10-31
DE2738624A1 (de) 1978-03-02
DE2738624C2 (de) 1982-08-19
NL7709270A (nl) 1978-02-28
GB1550731A (en) 1979-08-22
CA1092261A (fr) 1980-12-23
FR2363244B1 (fr) 1980-10-31

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Legal Events

Date Code Title Description
ST Notification of lapse