CH575694A5 - - Google Patents

Info

Publication number
CH575694A5
CH575694A5 CH286775A CH286775A CH575694A5 CH 575694 A5 CH575694 A5 CH 575694A5 CH 286775 A CH286775 A CH 286775A CH 286775 A CH286775 A CH 286775A CH 575694 A5 CH575694 A5 CH 575694A5
Authority
CH
Switzerland
Application number
CH286775A
Original Assignee
Oak Industries Inc
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 Oak Industries Inc filed Critical Oak Industries Inc
Publication of CH575694A5 publication Critical patent/CH575694A5/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
    • H04N7/171—Systems operating in the amplitude domain of the television signal
    • H04N7/1713—Systems operating in the amplitude domain of the television signal by modifying synchronisation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
CH286775A 1974-03-15 1975-03-06 CH575694A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US45149074A 1974-03-15 1974-03-15

Publications (1)

Publication Number Publication Date
CH575694A5 true CH575694A5 (fr) 1976-05-14

Family

ID=23792432

Family Applications (1)

Application Number Title Priority Date Filing Date
CH286775A CH575694A5 (fr) 1974-03-15 1975-03-06

Country Status (7)

Country Link
BE (1) BE826727A (fr)
CH (1) CH575694A5 (fr)
DE (2) DE2510348C2 (fr)
FI (1) FI67284C (fr)
FR (1) FR2264448B1 (fr)
GB (1) GB1500743A (fr)
NL (1) NL7502883A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH575694A5 (fr) * 1974-03-15 1976-05-14 Oak Industries Inc
FR2385281A2 (fr) * 1974-03-15 1978-10-20 Oak Industries Inc Dispositif de decodage de signaux de television
US4112464A (en) * 1977-05-11 1978-09-05 Oak Industries Inc. Subscription TV decoder logic system
US4145717A (en) * 1977-05-11 1979-03-20 Oak Industries Inc. Subscription TV audio carrier recovery system
US4336553A (en) * 1980-05-14 1982-06-22 Oak Industries Method of coding audio and video signals
US4353088A (en) * 1980-05-14 1982-10-05 Oak Industries, Inc. Coding and decoding system for video and audio signals

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081376A (en) * 1959-03-23 1963-03-12 Zenith Radio Corp Subscription television system
US3333198A (en) * 1965-12-29 1967-07-25 Ampli Vision Corp Television converter for catv system
US3729576A (en) * 1971-02-08 1973-04-24 Optical Sys Corp Encoding and decoding system for catv
CH575694A5 (fr) * 1974-03-15 1976-05-14 Oak Industries Inc

Also Published As

Publication number Publication date
GB1500743A (en) 1978-02-08
DE2711756C2 (de) 1984-03-01
FR2264448B1 (fr) 1979-03-30
DE2711756A1 (de) 1978-09-21
DE2510348C2 (de) 1983-11-03
NL7502883A (nl) 1975-09-17
FI750683A (fr) 1975-09-16
FR2264448A1 (fr) 1975-10-10
FI67284B (fi) 1984-10-31
BE826727A (fr) 1975-06-30
DE2510348A1 (de) 1975-09-18
FI67284C (fi) 1985-02-11

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Legal Events

Date Code Title Description
PUE Assignment

Owner name: OCI COMMUNICATIONS INC.

PL Patent ceased