CA1131762A - Systeme de codage-decodage d'emissions telediffusees destinees a des abonnes - Google Patents

Systeme de codage-decodage d'emissions telediffusees destinees a des abonnes

Info

Publication number
CA1131762A
CA1131762A CA313,330A CA313330A CA1131762A CA 1131762 A CA1131762 A CA 1131762A CA 313330 A CA313330 A CA 313330A CA 1131762 A CA1131762 A CA 1131762A
Authority
CA
Canada
Prior art keywords
signals
unscrambling
video
bit
scrambling
Prior art date
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.)
Expired
Application number
CA313,330A
Other languages
English (en)
Inventor
Richard A. Davidson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FEATURE FILM SERVICES
Original Assignee
FEATURE FILM SERVICES
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 FEATURE FILM SERVICES filed Critical FEATURE FILM SERVICES
Application granted granted Critical
Publication of CA1131762A publication Critical patent/CA1131762A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
CA313,330A 1977-10-19 1978-10-13 Systeme de codage-decodage d'emissions telediffusees destinees a des abonnes Expired CA1131762A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84374077A 1977-10-19 1977-10-19
US843,740 1977-10-19

Publications (1)

Publication Number Publication Date
CA1131762A true CA1131762A (fr) 1982-09-14

Family

ID=25290886

Family Applications (1)

Application Number Title Priority Date Filing Date
CA313,330A Expired CA1131762A (fr) 1977-10-19 1978-10-13 Systeme de codage-decodage d'emissions telediffusees destinees a des abonnes

Country Status (3)

Country Link
JP (1) JPS5477514A (fr)
AU (1) AU523710B2 (fr)
CA (1) CA1131762A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4734764A (en) * 1985-04-29 1988-03-29 Cableshare, Inc. Cable television system selectively distributing pre-recorded video and audio messages

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3177228D1 (de) * 1980-03-31 1990-12-06 Gen Instrument Corp Fernseh uebertragungsanordnung zum uebertragen von datensignalen.
JPS56160224A (en) * 1980-04-14 1981-12-09 Jsj Corp Bull type lockout actuator for transmission shifter
JPS57131184A (en) * 1981-02-05 1982-08-13 Alps Electric Co Ltd Pay telecasting system
JPS57168586A (en) * 1981-03-10 1982-10-16 Alps Electric Co Ltd Data processing circuit of charged television broadcast
JPS57164682A (en) * 1981-04-02 1982-10-09 Alps Electric Co Ltd Data processing circuit
US5508815A (en) * 1981-12-14 1996-04-16 Smart Vcr Limited Partnership Schedule display system for video recorder programming
JPS58131874A (ja) * 1982-01-30 1983-08-05 Sony Corp テレビジヨン信号伝送システム
JPS58151787A (ja) * 1982-03-05 1983-09-09 Alps Electric Co Ltd スクランブル／デイスクランブル方式
JPS58151788A (ja) * 1982-03-05 1983-09-09 Alps Electric Co Ltd スクランブル／デイスクランブル・システム
AU568314B2 (en) * 1982-10-08 1987-12-24 Camview Pty. Ltd. Frequency conversion subscription television system
GB8605014D0 (en) * 1986-02-28 1986-10-01 Int Computers Ltd Video display unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4734764A (en) * 1985-04-29 1988-03-29 Cableshare, Inc. Cable television system selectively distributing pre-recorded video and audio messages

Also Published As

Publication number Publication date
JPS5477514A (en) 1979-06-21
AU4108778A (en) 1980-05-01
AU523710B2 (en) 1982-08-12

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Legal Events

Date Code Title Description
MKEX Expiry
MKEX Expiry

Effective date: 19990914