CN1173567C - 使用加密、解密来保护数据流的方法、编码和解码装置 - Google Patents

使用加密、解密来保护数据流的方法、编码和解码装置 Download PDF

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Publication number
CN1173567C
CN1173567C CNB011019751A CN01101975A CN1173567C CN 1173567 C CN1173567 C CN 1173567C CN B011019751 A CNB011019751 A CN B011019751A CN 01101975 A CN01101975 A CN 01101975A CN 1173567 C CN1173567 C CN 1173567C
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China
Prior art keywords
code table
vlc code
video
vlc
decoder
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Expired - Fee Related
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CNB011019751A
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English (en)
Chinese (zh)
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CN1308463A (zh
Inventor
克劳斯·格特克
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哈特穆特·彼得斯
赫伯特·许策
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Deutsche Thomson Brandt GmbH
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Deutsche Thomson Brandt GmbH
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Priority claimed from EP00250040A external-priority patent/EP1124376A1/en
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Publication of CN1308463A publication Critical patent/CN1308463A/zh
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Publication of CN1173567C publication Critical patent/CN1173567C/zh
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    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/42—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/467—Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
CNB011019751A 2000-02-09 2001-01-19 使用加密、解密来保护数据流的方法、编码和解码装置 Expired - Fee Related CN1173567C (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP00250040.3 2000-02-09
EP00250040A EP1124376A1 (en) 2000-02-09 2000-02-09 Method and apparatus for generating a data stream protected by encryption
EP00250281.3 2000-08-23
EP00250281 2000-08-23

Publications (2)

Publication Number Publication Date
CN1308463A CN1308463A (zh) 2001-08-15
CN1173567C true CN1173567C (zh) 2004-10-27

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CNB011019751A Expired - Fee Related CN1173567C (zh) 2000-02-09 2001-01-19 使用加密、解密来保护数据流的方法、编码和解码装置

Country Status (3)

Country Link
US (1) US20010012365A1 (enExample)
JP (1) JP4764554B2 (enExample)
CN (1) CN1173567C (enExample)

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US6147010A (en) * 1996-11-14 2000-11-14 Micron Technology, Inc. Solvent prewet and method to dispense the solvent prewet
US7215776B1 (en) * 1999-11-09 2007-05-08 University Of New Hampshire Method and apparatus for the compression and decompression of audio files using a chaotic system
US7286670B2 (en) 1999-11-09 2007-10-23 Chaoticom, Inc. Method and apparatus for chaotic opportunistic lossless compression of data
US7110547B2 (en) * 2000-06-20 2006-09-19 University Of New Hampshire Method and apparatus for the compression and decompression of image files using a chaotic system
GB0120442D0 (en) * 2001-08-22 2001-10-17 Nds Ltd Non-standard coding systems
GB2382739B (en) * 2000-08-31 2004-10-20 Nds Ltd Non-standard coding systems
ES2399422T3 (es) * 2002-03-27 2013-04-01 Panasonic Corporation Procedimiento de codificación de longitud variable, procedimiento de decodificación de longitud variable, soporte de almacenamiento, dispositivo de codificación de longitud variable y flujo de bits
CN100338627C (zh) * 2002-06-04 2007-09-19 佳能株式会社 图像处理装置及其控制方法、以及图像处理系统
US20040043390A1 (en) * 2002-07-18 2004-03-04 Asat Ag Applied Science & Technology Use of nucleotide sequences as carrier of cultural information
KR100501933B1 (ko) * 2002-11-21 2005-07-18 삼성전자주식회사 멀티미디어 데이터 암호화 압축방법 및 장치
JP3737798B2 (ja) * 2002-11-25 2006-01-25 株式会社東芝 送信装置、受信装置及び受信方法
EP1604483A2 (en) * 2003-03-07 2005-12-14 Chaoticom, Inc. Methods and systems for digital rights management of protected content
AU2003298967A1 (en) * 2003-07-29 2005-02-15 Zakrytoe Aktsionernoe Obschestvo Intel A method for efficient variable length decoding
GB2408871A (en) * 2003-11-10 2005-06-08 Forbidden Technologies Plc Data and digital video data compression
US8098247B2 (en) * 2009-09-24 2012-01-17 Crucs Holdings, Llc Systems and methods for geometric data compression and encryption
CN102194075A (zh) * 2010-03-08 2011-09-21 毕剑斌 一种防火墙
CN104065968B (zh) * 2014-07-02 2017-11-24 哈尔滨海能达科技有限公司 一种视频数据加密、解密方法及装置
US10129212B2 (en) * 2016-07-06 2018-11-13 At&T Intellectual Property I, L.P. Computation of historical data
US10601443B1 (en) * 2016-08-24 2020-03-24 Arrowhead Center, Inc. Protocol for lightweight and provable secure communication for constrained devices
US11323489B1 (en) 2019-11-09 2022-05-03 Arrowhead Center, Inc. Scalable auditability of monitoring process using public ledgers
US12261952B2 (en) * 2022-11-04 2025-03-25 Crown Sterling Limited, LLC Multiple vector one-time key pad

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6020660A (ja) * 1983-07-14 1985-02-01 Sharp Corp 符号化情報のランダム化方式
JP2689383B2 (ja) * 1988-02-18 1997-12-10 株式会社 日立製作所 暗号化通信システム
JPH07264546A (ja) * 1994-03-18 1995-10-13 Sanyo Electric Co Ltd 画像再生装置のスクランブル方法、及び、ディスク
JP3283771B2 (ja) * 1996-11-07 2002-05-20 日本電気株式会社 映像送信方法
JP3928819B2 (ja) * 1997-01-21 2007-06-13 ソニー株式会社 データ受信装置及び暗号処理プログラム更新方法

Also Published As

Publication number Publication date
US20010012365A1 (en) 2001-08-09
JP2001274790A (ja) 2001-10-05
CN1308463A (zh) 2001-08-15
JP4764554B2 (ja) 2011-09-07

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Granted publication date: 20041027

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