CA2405902C - Systeme de chiffrement partiel a repartition temporelle - Google Patents

Systeme de chiffrement partiel a repartition temporelle Download PDF

Info

Publication number
CA2405902C
CA2405902C CA 2405902 CA2405902A CA2405902C CA 2405902 C CA2405902 C CA 2405902C CA 2405902 CA2405902 CA 2405902 CA 2405902 A CA2405902 A CA 2405902A CA 2405902 C CA2405902 C CA 2405902C
Authority
CA
Canada
Prior art keywords
encrypted
television program
pid
unencrypted
television
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
CA 2405902
Other languages
English (en)
Other versions
CA2405902A1 (fr
Inventor
Brant L. Candelore
Robert Allan Unger
Henry Derovanessian
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.)
Sony Electronics Inc
Original Assignee
Sony Electronics 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
Priority claimed from US10/038,032 external-priority patent/US7139398B2/en
Application filed by Sony Electronics Inc filed Critical Sony Electronics Inc
Priority to CNB028284496A priority Critical patent/CN100420303C/zh
Priority to KR1020107008920A priority patent/KR101053376B1/ko
Priority to KR1020047010452A priority patent/KR100978187B1/ko
Priority to PCT/US2002/040054 priority patent/WO2003059039A2/fr
Priority to EP02795875.0A priority patent/EP1468561B1/fr
Priority to JP2003559216A priority patent/JP4446742B2/ja
Priority to MXPA04006248A priority patent/MXPA04006248A/es
Priority to AU2002360605A priority patent/AU2002360605A1/en
Publication of CA2405902A1 publication Critical patent/CA2405902A1/fr
Publication of CA2405902C publication Critical patent/CA2405902C/fr
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
CA 2405902 2001-10-26 2002-10-01 Systeme de chiffrement partiel a repartition temporelle Expired - Lifetime CA2405902C (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP02795875.0A EP1468561B1 (fr) 2002-01-02 2002-12-13 Chiffrement partiel par repartition dans le temps
KR1020107008920A KR101053376B1 (ko) 2002-01-02 2002-12-13 시분할 부분 암호화
KR1020047010452A KR100978187B1 (ko) 2002-01-02 2002-12-13 시분할 부분 암호화
PCT/US2002/040054 WO2003059039A2 (fr) 2002-01-02 2002-12-13 Chiffrement partiel par repartition dans le temps
CNB028284496A CN100420303C (zh) 2002-01-02 2002-12-13 时分部分加密
JP2003559216A JP4446742B2 (ja) 2002-01-02 2002-12-13 時間分割部分暗号化
MXPA04006248A MXPA04006248A (es) 2002-01-02 2002-12-13 Encripcion parcial por division de tiempo.
AU2002360605A AU2002360605A1 (en) 2002-01-02 2002-12-13 Time division partial encryption

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US34371001P 2001-10-26 2001-10-26
US60/343,710 2001-10-26
US10/038,032 US7139398B2 (en) 2001-06-06 2002-01-02 Time division partial encryption
US10/038,032 2002-01-02

Publications (2)

Publication Number Publication Date
CA2405902A1 CA2405902A1 (fr) 2003-04-26
CA2405902C true CA2405902C (fr) 2010-08-10

Family

ID=26714783

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2405902 Expired - Lifetime CA2405902C (fr) 2001-10-26 2002-10-01 Systeme de chiffrement partiel a repartition temporelle

Country Status (1)

Country Link
CA (1) CA2405902C (fr)

Also Published As

Publication number Publication date
CA2405902A1 (fr) 2003-04-26

Similar Documents

Publication Publication Date Title
US8411857B2 (en) Partial multiple encryption
US7760879B2 (en) Multiple partial encryption
US8724806B2 (en) Partial multiple encryption
EP1464174A1 (fr) Cryptage partiel de paquets critiques
WO2003061173A2 (fr) Cryptage partiel de trains de donnees elementaires
WO2003065724A1 (fr) Decodage et dechiffrement d'information partiellement chiffree
EP1468561A2 (fr) Chiffrement partiel par repartition dans le temps
CA2406329C (fr) Systeme de decodage et de dechiffrement d'informations partiellement chiffrees
CA2405899C (fr) Systeme de chiffrement partiel utilisant la mise en correspondance
CA2405902C (fr) Systeme de chiffrement partiel a repartition temporelle
CA2405865C (fr) Systeme de chiffrement partiel visant les trains de donnees elementaires

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20221003