CA1303208C - Systeme de debrouillage pour abonne de reseau de communication - Google Patents

Systeme de debrouillage pour abonne de reseau de communication

Info

Publication number
CA1303208C
CA1303208C CA000615869A CA615869A CA1303208C CA 1303208 C CA1303208 C CA 1303208C CA 000615869 A CA000615869 A CA 000615869A CA 615869 A CA615869 A CA 615869A CA 1303208 C CA1303208 C CA 1303208C
Authority
CA
Canada
Prior art keywords
signal
subscriber
line
scrambled
credit
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 - Lifetime
Application number
CA000615869A
Other languages
English (en)
Inventor
Klein Shaw Gilhousen
Jerrold Allan Heller
Michael Van Harding
Robert Darrel Ii Blakeney
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.)
MA Com Government Systems Inc
Cable Home Communication Corp
Original Assignee
MA Com Government Systems Inc
Cable Home Communication 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
Priority claimed from US06/618,917 external-priority patent/US4712238A/en
Application filed by MA Com Government Systems Inc, Cable Home Communication Corp filed Critical MA Com Government Systems Inc
Application granted granted Critical
Publication of CA1303208C publication Critical patent/CA1303208C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
CA000615869A 1984-06-08 1990-09-19 Systeme de debrouillage pour abonne de reseau de communication Expired - Lifetime CA1303208C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/618,917 US4712238A (en) 1984-06-08 1984-06-08 Selective-subscription descrambling
US618,917 1984-06-08
CA000483413A CA1277764C (fr) 1984-06-08 1985-06-07 Systeme de debrouillage selectif ou continu pour reseau de communication a abonnes

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA000483413A Division CA1277764C (fr) 1984-06-08 1985-06-07 Systeme de debrouillage selectif ou continu pour reseau de communication a abonnes

Publications (1)

Publication Number Publication Date
CA1303208C true CA1303208C (fr) 1992-06-09

Family

ID=25670704

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000615869A Expired - Lifetime CA1303208C (fr) 1984-06-08 1990-09-19 Systeme de debrouillage pour abonne de reseau de communication

Country Status (1)

Country Link
CA (1) CA1303208C (fr)

Similar Documents

Publication Publication Date Title
US4712238A (en) Selective-subscription descrambling
JP3650448B2 (ja) 安全アクセス・システム及びｃａｔｖシステム
US4802215A (en) Security system for television signal encryption
US4751732A (en) Broadcasting system
EP0950319B2 (fr) Prevention des tentatives de reutilisation d'informations numeriques distribuees par des prestataires de services de reseaux
US6725459B2 (en) Descrambling device for use in a conditional access system
KR20010053558A (ko) 디지털 텔레비전 방송용 조건부 엑세스 시스템
JPH04150333A (ja) 放送受信制御方式
KR20010022627A (ko) 암호화된 텔레비전 프로그램들의 해독을 위한 디코더 장치
PL193782B1 (pl) Urządzenie do telewizji płatnej oraz dekoder główny urządzenia do telewizji płatnej
EP2104346A1 (fr) Procédé et système de traitement d'un signal de télédiffusion et terminal de réception d'un signal de télédiffusion
CA1303208C (fr) Systeme de debrouillage pour abonne de reseau de communication
JPH0723364A (ja) 有料暗号化放送の視聴装置
JPH02177786A (ja) Ｉｐｐｖプログラム分配制御システム
JPH04104559A (ja) データ放送受信システム
DK175677B1 (da) System til at muliggöre dekodning på selektiv abonnentbasis i et abonnent-kommunikationsnetværk
JP2000004430A (ja) 有料放送受信方法および装置
JP3523234B2 (ja) デジタル放送記録再生装置
JPH0541864A (ja) 受信者端末装置およびその課金方法
JP2001168816A (ja) 送信装置および方法、受信装置および方法、並びに記録媒体
JP2001168858A (ja) 情報処理装置および方法、条件設定装置および方法、条件設定制御装置および方法、並びに記録媒体

Legal Events

Date Code Title Description
MKEX Expiry
MKEX Expiry

Effective date: 20090609