BE809526A - Systeme de television par abonnement utilisant des porteuses son et video transposees - Google Patents

Systeme de television par abonnement utilisant des porteuses son et video transposees

Info

Publication number
BE809526A
BE809526A BE139633A BE139633A BE809526A BE 809526 A BE809526 A BE 809526A BE 139633 A BE139633 A BE 139633A BE 139633 A BE139633 A BE 139633A BE 809526 A BE809526 A BE 809526A
Authority
BE
Belgium
Prior art keywords
television system
subscription television
video carriers
transposed
sound
Prior art date
Application number
BE139633A
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 BE809526A publication Critical patent/BE809526A/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
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)
BE139633A 1973-02-09 1974-01-08 Systeme de television par abonnement utilisant des porteuses son et video transposees BE809526A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00331092A US3826863A (en) 1973-02-09 1973-02-09 Subscription television system using audio and video carrier reversal

Publications (1)

Publication Number Publication Date
BE809526A true BE809526A (fr) 1974-05-02

Family

ID=23292594

Family Applications (1)

Application Number Title Priority Date Filing Date
BE139633A BE809526A (fr) 1973-02-09 1974-01-08 Systeme de television par abonnement utilisant des porteuses son et video transposees

Country Status (7)

Country Link
US (1) US3826863A (xx)
JP (1) JPS5619789B2 (xx)
BE (1) BE809526A (xx)
CA (1) CA986617A (xx)
CH (1) CH562545A5 (xx)
FR (1) FR2217889B3 (xx)
NL (1) NL7401073A (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6036152B2 (ja) * 1976-05-07 1985-08-19 パイオニア株式会社 Ｃａｔｖ用端末装置
US4130833A (en) * 1977-04-11 1978-12-19 Teleglobe Pay-Tv System, Inc. Pay television system
US4329711A (en) * 1979-02-20 1982-05-11 Payview Limited Apparatus for encoding of information
CA1155518A (en) * 1979-02-20 1983-10-18 William S.H. Cheung Encoding of information
NL8103152A (nl) * 1980-07-05 1982-02-01 Communications Patents Ltd Kabeltelevisie-omroepstelsel.
FR2502880B1 (fr) * 1981-03-24 1985-12-13 Telediffusion Fse Systeme de codage et de decodage d'un signal analogique de vision de television en couleurs
US4965825A (en) 1981-11-03 1990-10-23 The Personalized Mass Media Corporation Signal processing apparatus and methods
USRE47642E1 (en) 1981-11-03 2019-10-08 Personalized Media Communications LLC Signal processing apparatus and methods
US7831204B1 (en) 1981-11-03 2010-11-09 Personalized Media Communications, Llc Signal processing apparatus and methods
USRE33189E (en) * 1981-11-19 1990-03-27 Communications Satellite Corporation Security system for SSTV encryption
US4908859A (en) * 1986-09-19 1990-03-13 M/A-Com Government Systems, Inc. Receiver access interface to service components in television channel
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
US6597789B1 (en) * 1998-12-17 2003-07-22 General Instrument Corporation Video/audio scrambling with single conversion tuners

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3054857A (en) * 1955-04-18 1962-09-18 Paramount Pictures Corp Secrecy system
US3527877A (en) * 1965-10-21 1970-09-08 Charger Electronic Systems Inc Coded video systems with signal phase inversion
US3730980A (en) * 1971-05-24 1973-05-01 Television Communications Corp Electronic communication apparatus for selectively distributing supplementary private programming
BE789101A (fr) * 1971-09-28 1973-01-15 Optical Systems Corp Codeur, decodeur audio pour systeme de television sur antenne collective

Also Published As

Publication number Publication date
CH562545A5 (xx) 1975-05-30
US3826863A (en) 1974-07-30
DE2402460B2 (de) 1975-09-25
NL7401073A (xx) 1974-08-13
JPS49113520A (xx) 1974-10-30
DE2402460A1 (de) 1974-08-15
FR2217889B3 (xx) 1976-11-05
FR2217889A1 (xx) 1974-09-06
CA986617A (en) 1976-03-30
JPS5619789B2 (xx) 1981-05-09

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