JPS4950819A - - Google Patents

Info

Publication number
JPS4950819A
JPS4950819A JP48043996A JP4399673A JPS4950819A JP S4950819 A JPS4950819 A JP S4950819A JP 48043996 A JP48043996 A JP 48043996A JP 4399673 A JP4399673 A JP 4399673A JP S4950819 A JPS4950819 A JP S4950819A
Authority
JP
Japan
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
JP48043996A
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 JPS4950819A publication Critical patent/JPS4950819A/ja
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
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
JP48043996A 1972-05-16 1973-04-18 Pending JPS4950819A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25376872A 1972-05-16 1972-05-16

Publications (1)

Publication Number Publication Date
JPS4950819A true JPS4950819A (ja) 1974-05-17

Family

ID=22961614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP48043996A Pending JPS4950819A (ja) 1972-05-16 1973-04-18

Country Status (9)

Country Link
US (1) US3777053A (ja)
JP (1) JPS4950819A (ja)
BE (1) BE799629A (ja)
CA (1) CA979114A (ja)
CH (1) CH558117A (ja)
DE (1) DE2324816A1 (ja)
FR (1) FR2184926B3 (ja)
GB (1) GB1430848A (ja)
IT (1) IT987343B (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53144617A (en) * 1977-05-11 1978-12-16 Oak Industries Inc Tv decoder for general viewer
JPS5628575A (en) * 1979-08-16 1981-03-20 Pioneer Electronic Corp Audient channel selecting method in catv system
JPS56106476A (en) * 1980-01-29 1981-08-24 Matsushita Electric Ind Co Ltd Television receiver
JPS58210779A (ja) * 1982-06-01 1983-12-08 Sony Corp スクランブル放送の受信装置

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916091A (en) * 1973-01-31 1975-10-28 Columbia Pictures Ind Inc Electronic communications system for supplementary video program distribution
US3975585A (en) * 1973-01-31 1976-08-17 Columbia Pictures Industries, Inc. Electronic communications system for supplementary video program distribution
US3890461A (en) * 1973-03-27 1975-06-17 Theatrevision Inc Ticket operated subscription television receiver
US4024576A (en) * 1973-08-15 1977-05-17 System Development Corporation Method and apparatus for scrambling and unscrambling communication signals
US4019201A (en) * 1973-08-15 1977-04-19 System Development Corporation Method and apparatus for scrambling and unscrambling communication signals
US4045814A (en) * 1973-08-15 1977-08-30 System Development Corporation Method and apparatus for scrambling and unscrambling communication signals
US3919462A (en) * 1973-08-15 1975-11-11 System Dev Corp Method and apparatus for scrambling and unscrambling communication signals
US3934079A (en) * 1973-10-26 1976-01-20 Jerrold Electronics Corporation Bilateral communications system for distributing commerical and premium video signaling on an accountable basis
FR2385281A2 (fr) * 1974-03-15 1978-10-20 Oak Industries Inc Dispositif de decodage de signaux de television
US4253114A (en) * 1976-04-08 1981-02-24 Twin County Trans-Video Inc. High security subscription television system employing real time control of subscriber's program reception
JPS6036152B2 (ja) * 1976-05-07 1985-08-19 パイオニア株式会社 Ｃａｔｖ用端末装置
US4081832A (en) * 1976-06-08 1978-03-28 Pay Television Corporation Pay television system, method and apparatus
US4528589A (en) * 1977-02-14 1985-07-09 Telease, Inc. Method and system for subscription television billing and access
GB1602119A (en) * 1977-11-18 1981-11-04 Shiu Hung Cheung Pay-tv system
US4222068A (en) * 1978-11-02 1980-09-09 American Television And Communications Corporation Subscription television apparatus and methods
FR2448826A1 (fr) * 1979-02-06 1980-09-05 Telediffusion Fse Carte d'abonnement pour recepteur de videotex et poste de chargement de ladite carte
JPS55127777A (en) * 1979-03-24 1980-10-02 Pioneer Electronic Corp Scramble method of catv system
US4323922A (en) * 1979-12-17 1982-04-06 Oak Industries Inc. Television coding system with channel level identification
DE3043839C2 (de) * 1980-11-21 1982-09-16 AVM Schmelter GmbH & Co KG, 4404 Telgte Vorrichtung zur Steuerung eines Fernsehgerätes in Krankenanstalten
JPS57164682A (en) * 1981-04-02 1982-10-09 Alps Electric Co Ltd Data processing circuit
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
US4494142A (en) * 1981-11-20 1985-01-15 Blonder-Tongue Laboratories, Inc. Method of and apparatus for scrambled television program addressable subscription selection and decoding
US4471380A (en) * 1982-03-15 1984-09-11 Scientific-Atlanta, Inc. Scrambling and descrambling of television signals for subscription TV
US4613901A (en) * 1983-05-27 1986-09-23 M/A-Com Linkabit, Inc. Signal encryption and distribution system for controlling scrambling and selective remote descrambling of television signals
US4866770A (en) * 1986-07-08 1989-09-12 Scientific Atlanta, Inc. Method and apparatus for communication of video, audio, teletext, and data to groups of decoders in a communication system
US4790010A (en) * 1987-02-24 1988-12-06 Zenith Electronics Corporation Enhanced scrambling method and system for TV signals
IT1239581B (it) * 1990-02-07 1993-11-10 Antonini Vittorio Sistema di codificazione-decodificazione di trasmissioni televisive e scheda elettronica da impiegare in fase di decodificazione.
US5581614A (en) * 1991-08-19 1996-12-03 Index Systems, Inc. Method for encrypting and embedding information in a video program

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078337A (en) * 1958-12-17 1963-02-19 Skiatron Elect & Tele Metering systems
US3073892A (en) * 1959-07-23 1963-01-15 Zenith Radio Corp Code signal generator
US3081377A (en) * 1960-05-03 1963-03-12 Zenith Radio Corp Secrecy communication
US3387083A (en) * 1963-12-23 1968-06-04 Hazeltine Research Inc Pay television system with billing transponder
US3689688A (en) * 1970-11-02 1972-09-05 Skiatron Elect & Tele Communications secrecy system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53144617A (en) * 1977-05-11 1978-12-16 Oak Industries Inc Tv decoder for general viewer
JPH0243400B2 (ja) * 1977-05-11 1990-09-28
JPS5628575A (en) * 1979-08-16 1981-03-20 Pioneer Electronic Corp Audient channel selecting method in catv system
JPS6247395B2 (ja) * 1979-08-16 1987-10-07 Pioneer Electronic Corp
JPS56106476A (en) * 1980-01-29 1981-08-24 Matsushita Electric Ind Co Ltd Television receiver
JPS58210779A (ja) * 1982-06-01 1983-12-08 Sony Corp スクランブル放送の受信装置

Also Published As

Publication number Publication date
CH558117A (de) 1975-01-15
US3777053A (en) 1973-12-04
FR2184926A1 (ja) 1973-12-28
BE799629A (fr) 1973-09-17
IT987343B (it) 1975-02-20
GB1430848A (en) 1976-04-07
CA979114A (en) 1975-12-02
FR2184926B3 (ja) 1976-04-30
DE2324816A1 (de) 1973-11-29

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