FR2506100B2 - - Google Patents

Info

Publication number
FR2506100B2
FR2506100B2 FR8110089A FR8110089A FR2506100B2 FR 2506100 B2 FR2506100 B2 FR 2506100B2 FR 8110089 A FR8110089 A FR 8110089A FR 8110089 A FR8110089 A FR 8110089A FR 2506100 B2 FR2506100 B2 FR 2506100B2
Authority
FR
France
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
FR8110089A
Other languages
French (fr)
Other versions
FR2506100A2 (en
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.)
Telediffusion de France ets Public de Diffusion
Original Assignee
Telediffusion de France ets Public de Diffusion
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
Priority claimed from FR7518319A external-priority patent/FR2313825A1/en
Application filed by Telediffusion de France ets Public de Diffusion filed Critical Telediffusion de France ets Public de Diffusion
Priority to FR8110089A priority Critical patent/FR2506100A2/en
Priority to EP82400832A priority patent/EP0066487B1/en
Priority to DE8282400832T priority patent/DE3261045D1/en
Priority to US06/376,790 priority patent/US4496975A/en
Priority to CA000402718A priority patent/CA1198791A/en
Publication of FR2506100A2 publication Critical patent/FR2506100A2/en
Application granted granted Critical
Publication of FR2506100B2 publication Critical patent/FR2506100B2/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0888—Subscription systems therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/24—Time-division multiplex systems in which the allocation is indicated by an address the different channels being transmitted sequentially
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
FR8110089A 1975-06-06 1981-05-14 Unidirectional transmission system for packet data - uses demodulator to recover synchronisation and data bit frequency for validation and error correction circuits Granted FR2506100A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR8110089A FR2506100A2 (en) 1975-06-06 1981-05-14 Unidirectional transmission system for packet data - uses demodulator to recover synchronisation and data bit frequency for validation and error correction circuits
EP82400832A EP0066487B1 (en) 1981-05-14 1982-05-05 Data transmission system and transmitting and receiving equipment used in such a system
DE8282400832T DE3261045D1 (en) 1981-05-14 1982-05-05 Data transmission system and transmitting and receiving equipment used in such a system
US06/376,790 US4496975A (en) 1981-05-14 1982-05-10 One-way data transmission systems
CA000402718A CA1198791A (en) 1981-05-14 1982-05-11 Data transmission system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7518319A FR2313825A1 (en) 1975-06-06 1975-06-06 DATA DISSEMINATION SYSTEM
FR8110089A FR2506100A2 (en) 1975-06-06 1981-05-14 Unidirectional transmission system for packet data - uses demodulator to recover synchronisation and data bit frequency for validation and error correction circuits

Publications (2)

Publication Number Publication Date
FR2506100A2 FR2506100A2 (en) 1982-11-19
FR2506100B2 true FR2506100B2 (en) 1984-08-10

Family

ID=26218913

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8110089A Granted FR2506100A2 (en) 1975-06-06 1981-05-14 Unidirectional transmission system for packet data - uses demodulator to recover synchronisation and data bit frequency for validation and error correction circuits

Country Status (1)

Country Link
FR (1) FR2506100A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3732906A1 (en) * 1987-09-30 1989-04-13 Thomson Brandt Gmbh VOLTAGE CONTROLLED OSCILLATOR WITH A CERAMIC SWINGING QUARTZ

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466917A2 (en) * 1979-09-27 1981-04-10 Telediffusion Fse DATA DISSEMINATION SYSTEM

Also Published As

Publication number Publication date
FR2506100A2 (en) 1982-11-19

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Legal Events

Date Code Title Description
TP Transmission of property