FR2427022A1 - Systemes de telediffusion - Google Patents

Systemes de telediffusion

Info

Publication number
FR2427022A1
FR2427022A1 FR7913075A FR7913075A FR2427022A1 FR 2427022 A1 FR2427022 A1 FR 2427022A1 FR 7913075 A FR7913075 A FR 7913075A FR 7913075 A FR7913075 A FR 7913075A FR 2427022 A1 FR2427022 A1 FR 2427022A1
Authority
FR
France
Prior art keywords
switch
programs
broadcasting systems
auto
respective cable
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.)
Pending
Application number
FR7913075A
Other languages
English (en)
French (fr)
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.)
Communications Patents Ltd
Original Assignee
Communications Patents 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 Communications Patents Ltd filed Critical Communications Patents Ltd
Publication of FR2427022A1 publication Critical patent/FR2427022A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17345—Control of the passage of the selected programme

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
FR7913075A 1978-05-23 1979-05-23 Systemes de telediffusion Pending FR2427022A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2155278A GB1598970A (en) 1978-05-23 1978-05-23 Wired broadcasting systems

Publications (1)

Publication Number Publication Date
FR2427022A1 true FR2427022A1 (fr) 1979-12-21

Family

ID=10164829

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913075A Pending FR2427022A1 (fr) 1978-05-23 1979-05-23 Systemes de telediffusion

Country Status (5)

Country Link
JP (1) JPS5510294A (nl)
DE (1) DE2919223A1 (nl)
FR (1) FR2427022A1 (nl)
GB (1) GB1598970A (nl)
NL (1) NL7904024A (nl)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2015405A1 (nl) * 1968-08-09 1970-04-24 Communications Patents Ltd
US3899633A (en) * 1972-05-12 1975-08-12 Columbia Pictures Ind Inc Subscription television system
FR2371093A1 (fr) * 1976-11-10 1978-06-09 Communications Patents Ltd Perfectionnements aux circuits logiques et relatifs a ceux-ci
FR2371094A1 (fr) * 1976-11-10 1978-06-09 Communications Patents Ltd Perfectionnements aux commutateurs et relatifs a ceux-ci

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2015405A1 (nl) * 1968-08-09 1970-04-24 Communications Patents Ltd
US3899633A (en) * 1972-05-12 1975-08-12 Columbia Pictures Ind Inc Subscription television system
FR2371093A1 (fr) * 1976-11-10 1978-06-09 Communications Patents Ltd Perfectionnements aux circuits logiques et relatifs a ceux-ci
FR2371094A1 (fr) * 1976-11-10 1978-06-09 Communications Patents Ltd Perfectionnements aux commutateurs et relatifs a ceux-ci

Also Published As

Publication number Publication date
NL7904024A (nl) 1979-11-27
GB1598970A (en) 1981-09-30
JPS5510294A (en) 1980-01-24
DE2919223A1 (de) 1979-11-29

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