DK109339C - Abonnenttelevisionsanlæg og sender og modtager til anvendelse i dette anlæg. - Google Patents

Abonnenttelevisionsanlæg og sender og modtager til anvendelse i dette anlæg.

Info

Publication number
DK109339C
DK109339C DK395162AA DK395162A DK109339C DK 109339 C DK109339 C DK 109339C DK 395162A A DK395162A A DK 395162AA DK 395162 A DK395162 A DK 395162A DK 109339 C DK109339 C DK 109339C
Authority
DK
Denmark
Prior art keywords
transmitter
receiver
subscriber television
television system
subscriber
Prior art date
Application number
DK395162AA
Other languages
English (en)
Original Assignee
Paramount Pictures Corp
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 Paramount Pictures Corp filed Critical Paramount Pictures Corp
Application granted granted Critical
Publication of DK109339C publication Critical patent/DK109339C/da

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
    • 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)
  • Television Receiver Circuits (AREA)
  • Transmitters (AREA)
DK395162AA 1961-11-09 1962-09-10 Abonnenttelevisionsanlæg og sender og modtager til anvendelse i dette anlæg. DK109339C (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US151310A US3231818A (en) 1961-11-09 1961-11-09 Audio secrecy system for subscription television

Publications (1)

Publication Number Publication Date
DK109339C true DK109339C (da) 1968-04-16

Family

ID=22538178

Family Applications (1)

Application Number Title Priority Date Filing Date
DK395162AA DK109339C (da) 1961-11-09 1962-09-10 Abonnenttelevisionsanlæg og sender og modtager til anvendelse i dette anlæg.

Country Status (6)

Country Link
US (1) US3231818A (da)
BE (1) BE622309A (da)
DE (1) DE1285513B (da)
DK (1) DK109339C (da)
GB (1) GB1019023A (da)
NL (1) NL282258A (da)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506780A (en) * 1964-08-31 1970-04-14 Iit Res Inst Signal transducer systems
US3530232A (en) * 1966-06-17 1970-09-22 Intern Telemeter Corp Subscription television system
BE789101A (fr) * 1971-09-28 1973-01-15 Optical Systems Corp Codeur, decodeur audio pour systeme de television sur antenne collective
US3975585A (en) * 1973-01-31 1976-08-17 Columbia Pictures Industries, Inc. Electronic communications system for supplementary video program distribution
US3916091A (en) * 1973-01-31 1975-10-28 Columbia Pictures Ind Inc Electronic communications system for supplementary video program distribution
US4148063A (en) * 1977-04-28 1979-04-03 Teleglobe Pay-Tv System, Inc. Method and apparatus for encoding audio signals in television systems
US4638357A (en) * 1984-01-20 1987-01-20 Home Box Office, Inc. Audio scrambler
US5063446A (en) * 1989-08-11 1991-11-05 General Electric Company Apparatus for transmitting auxiliary signal in a TV channel
US5946047A (en) * 1997-03-12 1999-08-31 Hybrid Networks, Inc. Network system for handling digital data over a TV channel
US5946048A (en) * 1997-03-12 1999-08-31 Hybrid Networks, Inc. Network device for handling digital data over a TV channel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418119A (en) * 1943-04-10 1947-04-01 Sperry Gyroscope Co Inc Secret communication
US2414101A (en) * 1943-06-04 1947-01-14 Faximile Inc Graphic privacy system
US2582968A (en) * 1945-10-10 1952-01-22 Standard Telephones Cables Ltd Electrical pulse secrecy communication system
US2905747A (en) * 1953-09-22 1959-09-22 Rca Corp Secrecy systems

Also Published As

Publication number Publication date
GB1019023A (en) 1966-02-02
NL282258A (da) 1964-12-28
BE622309A (da) 1963-03-11
US3231818A (en) 1966-01-25
DE1285513B (de) 1968-12-19

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