WO2005009047A3 - Methode d'insertion de marques de synchronisation dans un flux video, compatible avec un chiffrage par blocs - Google Patents
Methode d'insertion de marques de synchronisation dans un flux video, compatible avec un chiffrage par blocs Download PDFInfo
- Publication number
- WO2005009047A3 WO2005009047A3 PCT/FR2004/001791 FR2004001791W WO2005009047A3 WO 2005009047 A3 WO2005009047 A3 WO 2005009047A3 FR 2004001791 W FR2004001791 W FR 2004001791W WO 2005009047 A3 WO2005009047 A3 WO 2005009047A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compatible
- video stream
- block encryption
- synchronization marks
- inserting synchronization
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
- H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
-
- 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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23614—Multiplexing of additional data and video streams
-
- 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
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
- H04N21/23895—Multiplex stream processing, e.g. multiplex stream encrypting involving multiplex stream encryption
- H04N21/23897—Multiplex stream processing, e.g. multiplex stream encrypting involving multiplex stream encryption by partially encrypting, e.g. encrypting only the ending portion of a movie
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4348—Demultiplexing of additional data and video streams
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8455—Structuring of content, e.g. decomposing content into time segments involving pointers to the content, e.g. pointers to the I-frames of the video stream
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04767623A EP1645128A2 (fr) | 2003-07-16 | 2004-07-08 | Methode d'insertion de marques de synchronisation dans un flux video, compatible avec un chiffrage par blocs |
US11/331,579 US7787624B2 (en) | 2003-07-16 | 2006-01-13 | Method for inserting synchronization markers into a video stream, compatible with a block cipher |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR03/08639 | 2003-07-16 | ||
FR0308639A FR2857813A1 (fr) | 2003-07-16 | 2003-07-16 | Methode d'insertion de marques de synchronisation dans un flux video, compatible avec un chiffrage par blocs |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/331,579 Continuation US7787624B2 (en) | 2003-07-16 | 2006-01-13 | Method for inserting synchronization markers into a video stream, compatible with a block cipher |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005009047A2 WO2005009047A2 (fr) | 2005-01-27 |
WO2005009047A3 true WO2005009047A3 (fr) | 2005-06-02 |
Family
ID=33548153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2004/001791 WO2005009047A2 (fr) | 2003-07-16 | 2004-07-08 | Methode d'insertion de marques de synchronisation dans un flux video, compatible avec un chiffrage par blocs |
Country Status (4)
Country | Link |
---|---|
US (1) | US7787624B2 (fr) |
EP (1) | EP1645128A2 (fr) |
FR (1) | FR2857813A1 (fr) |
WO (1) | WO2005009047A2 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2124449A1 (fr) | 2008-05-19 | 2009-11-25 | THOMSON Licensing | Dispositif et procédé de synchronisation d'une marque interactive vers un contenu de diffusion en continu |
US20100278337A1 (en) * | 2009-04-30 | 2010-11-04 | Brandon Pliska | Encryption-Based Location Masking |
US9998750B2 (en) * | 2013-03-15 | 2018-06-12 | Cisco Technology, Inc. | Systems and methods for guided conversion of video from a first to a second compression format |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0619677A2 (fr) * | 1993-04-09 | 1994-10-12 | Matsushita Electric Industrial Co., Ltd. | Système pour embrouiller un signal vidéo numérique |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5008935A (en) * | 1989-06-30 | 1991-04-16 | At&T Bell Laboratories | Efficient method for encrypting superblocks of data |
KR0152788B1 (ko) * | 1994-11-26 | 1998-10-15 | 이헌조 | 디지탈 영상 시스템의 복사 방지 방법 및 장치 |
US6505299B1 (en) | 1999-03-01 | 2003-01-07 | Sharp Laboratories Of America, Inc. | Digital image scrambling for image coding systems |
-
2003
- 2003-07-16 FR FR0308639A patent/FR2857813A1/fr active Pending
-
2004
- 2004-07-08 EP EP04767623A patent/EP1645128A2/fr not_active Withdrawn
- 2004-07-08 WO PCT/FR2004/001791 patent/WO2005009047A2/fr not_active Application Discontinuation
-
2006
- 2006-01-13 US US11/331,579 patent/US7787624B2/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0619677A2 (fr) * | 1993-04-09 | 1994-10-12 | Matsushita Electric Industrial Co., Ltd. | Système pour embrouiller un signal vidéo numérique |
Non-Patent Citations (2)
Title |
---|
ALATTAR A M ET AL: "Evaluation of selective encryption techniques for secure transmission of MPEG-compressed bit-streams", CIRCUITS AND SYSTEMS, 1999. ISCAS '99. PROCEEDINGS OF THE 1999 IEEE INTERNATIONAL SYMPOSIUM ON ORLANDO, FL, USA 30 MAY-2 JUNE 1999, PISCATAWAY, NJ, USA,IEEE, US, 30 May 1999 (1999-05-30), pages 340 - 343, XP010341246, ISBN: 0-7803-5471-0 * |
SHI C ET AL: "A FAST MPEG VIDEO ENCRYPTION ALGORITHM", PROCEEDINGS OF THE ACM MULTIMEDIA 98. MM '98. BRISTOL, SEPT. 12 - 16, 1998, ACM INTERNATIONAL MULTIMEDIA CONFERENCE, NEW YORK, NY: ACM, US, vol. CONF. 6, 1998, pages 81 - 88, XP000874756, ISBN: 1-58113-036-8 * |
Also Published As
Publication number | Publication date |
---|---|
US7787624B2 (en) | 2010-08-31 |
WO2005009047A2 (fr) | 2005-01-27 |
FR2857813A1 (fr) | 2005-01-21 |
US20060182275A1 (en) | 2006-08-17 |
EP1645128A2 (fr) | 2006-04-12 |
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