BE811656A - Convertisseur de television sur cable utilisant une boucle a synchronisme de phase - Google Patents

Convertisseur de television sur cable utilisant une boucle a synchronisme de phase

Info

Publication number
BE811656A
BE811656A BE141464A BE141464A BE811656A BE 811656 A BE811656 A BE 811656A BE 141464 A BE141464 A BE 141464A BE 141464 A BE141464 A BE 141464A BE 811656 A BE811656 A BE 811656A
Authority
BE
Belgium
Prior art keywords
loop
cable television
television converter
phase synchronism
synchronism
Prior art date
Application number
BE141464A
Other languages
English (en)
French (fr)
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 BE811656A publication Critical patent/BE811656A/xx

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Television Receiver Circuits (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
BE141464A 1973-03-08 1974-02-27 Convertisseur de television sur cable utilisant une boucle a synchronisme de phase BE811656A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00339095A US3857997A (en) 1973-03-08 1973-03-08 Cable converter with phase lock loop techniques

Publications (1)

Publication Number Publication Date
BE811656A true BE811656A (fr) 1974-06-17

Family

ID=23327484

Family Applications (1)

Application Number Title Priority Date Filing Date
BE141464A BE811656A (fr) 1973-03-08 1974-02-27 Convertisseur de television sur cable utilisant une boucle a synchronisme de phase

Country Status (7)

Country Link
US (1) US3857997A (es)
BE (1) BE811656A (es)
CA (1) CA997854A (es)
CH (1) CH562546A5 (es)
FR (1) FR2220951B3 (es)
GB (1) GB1407575A (es)
NL (1) NL7402656A (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034402A (en) * 1974-07-01 1977-07-05 Hughes Aircraft Company Video scrambling system
US4233874A (en) * 1978-03-25 1980-11-18 Nippon Gakki Seizo Kabushiki Kaisha Frequency conversion system of tone signal produced by electrically picking up mechanical vibration of musical instrument
DE3125767A1 (de) * 1980-07-05 1982-06-09 Communications Patents Ltd., London Kabelfernsehsystem
US4491983A (en) * 1981-05-14 1985-01-01 Times Fiber Communications, Inc. Information distribution system
GB2100932B (en) * 1981-06-18 1986-06-11 Charles Edward Cooper Antenna.
USRE33189E (en) * 1981-11-19 1990-03-27 Communications Satellite Corporation Security system for SSTV encryption
FR2566609A1 (fr) * 1984-06-20 1985-12-27 Cedepe Sa Dispositif pour la distribution par cable d'une emission a des recepteurs raccordes a ce cable
US5621793A (en) * 1995-05-05 1997-04-15 Rubin, Bednarek & Associates, Inc. TV set top box using GPS
US6108365A (en) * 1995-05-05 2000-08-22 Philip A. Rubin And Associates, Inc. GPS data access system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498242A (en) * 1945-03-23 1950-02-21 Westinghouse Electric Corp Control system
US2961533A (en) * 1959-04-13 1960-11-22 Collins Radio Co Synchronizing frequency control system
US3387082A (en) * 1963-12-23 1968-06-04 Hazeltine Research Inc Pay television audience survey and billing system

Also Published As

Publication number Publication date
US3857997A (en) 1974-12-31
FR2220951B3 (es) 1976-11-26
NL7402656A (es) 1974-09-10
CA997854A (en) 1976-09-28
FR2220951A1 (es) 1974-10-04
CH562546A5 (es) 1975-05-30
GB1407575A (en) 1975-09-24

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