CA2405901C - Systeme de chiffrement partiel visant les paquets critiques - Google Patents
Systeme de chiffrement partiel visant les paquets critiques Download PDFInfo
- Publication number
- CA2405901C CA2405901C CA2405901A CA2405901A CA2405901C CA 2405901 C CA2405901 C CA 2405901C CA 2405901 A CA2405901 A CA 2405901A CA 2405901 A CA2405901 A CA 2405901A CA 2405901 C CA2405901 C CA 2405901C
- Authority
- CA
- Canada
- Prior art keywords
- packets
- encrypted
- television signal
- packet
- encryption
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
- H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN028284518A CN1623328B (zh) | 2002-01-02 | 2002-12-13 | 关键分组部分加密和解密的方法 |
CN201010194188XA CN101902555B (zh) | 2002-01-02 | 2002-12-13 | 关键分组部分加密 |
AU2002360604A AU2002360604A1 (en) | 2002-01-02 | 2002-12-13 | Critical packet partial encryption |
KR1020097021973A KR100988435B1 (ko) | 2002-01-02 | 2002-12-13 | 신호를 암호 해독하기 위한 장치 및 방법 |
KR1020087030265A KR100993456B1 (ko) | 2002-01-02 | 2002-12-13 | 패킷의 부분적 복제, 암호화 및 암호 해독을 이루기 위한 장치 및 방법, 컴퓨터 판독 가능 저장 매체 |
EP11158587.3A EP2346246B1 (fr) | 2002-01-02 | 2002-12-13 | Cryptage partiel de paquets critiques |
KR1020047010457A KR100924053B1 (ko) | 2002-01-02 | 2002-12-13 | 크리티컬 패킷의 부분적 암호화 |
JP2003561246A JP4448693B2 (ja) | 2002-01-02 | 2002-12-13 | 重要なパケットの部分暗号化 |
PCT/US2002/040050 WO2003061289A1 (fr) | 2002-01-02 | 2002-12-13 | Cryptage partiel de paquets critiques |
EP11158583.2A EP2352291B1 (fr) | 2002-01-02 | 2002-12-13 | Cryptage partiel de paquets critiques |
EP02795874A EP1464174B1 (fr) | 2002-01-02 | 2002-12-13 | Cryptage partiel de paquets critiques |
MXPA04006249A MXPA04006249A (es) | 2002-01-02 | 2002-12-13 | Encripcion parcial de paquetes criticos. |
EP11158585.7A EP2346245B1 (fr) | 2002-01-02 | 2002-12-13 | Cryptage partiel de paquets critiques |
HK11102613.0A HK1148629A1 (en) | 2002-01-02 | 2011-03-15 | Critical packet 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 | ||
US10/038,217 US7336787B2 (en) | 2001-06-06 | 2002-01-02 | Critical packet partial encryption |
US10/038,217 | 2002-01-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2405901A1 CA2405901A1 (fr) | 2003-04-26 |
CA2405901C true CA2405901C (fr) | 2010-03-30 |
Family
ID=26714971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2405901A Expired - Lifetime CA2405901C (fr) | 2001-10-26 | 2002-10-01 | Systeme de chiffrement partiel visant les paquets critiques |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2405901C (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006040708A2 (fr) * | 2004-10-14 | 2006-04-20 | Koninklijke Philips Electronics N.V. | Procede et dispositif de cryptage de flux de donnees |
-
2002
- 2002-10-01 CA CA2405901A patent/CA2405901C/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2405901A1 (fr) | 2003-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20221003 |