CA1160734A - Methode de controle du brouillage et du desembrouillage dans les systemes de television payante - Google Patents

Methode de controle du brouillage et du desembrouillage dans les systemes de television payante

Info

Publication number
CA1160734A
CA1160734A CA000374523A CA374523A CA1160734A CA 1160734 A CA1160734 A CA 1160734A CA 000374523 A CA000374523 A CA 000374523A CA 374523 A CA374523 A CA 374523A CA 1160734 A CA1160734 A CA 1160734A
Authority
CA
Canada
Prior art keywords
variable
video signal
subscriber station
dependence
unscrambling
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
CA000374523A
Other languages
English (en)
Inventor
Yehuda J. Aminetzah
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to CA000374523A priority Critical patent/CA1160734A/fr
Application granted granted Critical
Publication of CA1160734A publication Critical patent/CA1160734A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
CA000374523A 1981-04-02 1981-04-02 Methode de controle du brouillage et du desembrouillage dans les systemes de television payante Expired CA1160734A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000374523A CA1160734A (fr) 1981-04-02 1981-04-02 Methode de controle du brouillage et du desembrouillage dans les systemes de television payante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000374523A CA1160734A (fr) 1981-04-02 1981-04-02 Methode de controle du brouillage et du desembrouillage dans les systemes de television payante

Publications (1)

Publication Number Publication Date
CA1160734A true CA1160734A (fr) 1984-01-17

Family

ID=4119623

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000374523A Expired CA1160734A (fr) 1981-04-02 1981-04-02 Methode de controle du brouillage et du desembrouillage dans les systemes de television payante

Country Status (1)

Country Link
CA (1) CA1160734A (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

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

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Legal Events

Date Code Title Description
MKEX Expiry