DE69931550D1 - Bildverschlüsselungsmethode und -gerät - Google Patents

Bildverschlüsselungsmethode und -gerät

Info

Publication number
DE69931550D1
DE69931550D1 DE69931550T DE69931550T DE69931550D1 DE 69931550 D1 DE69931550 D1 DE 69931550D1 DE 69931550 T DE69931550 T DE 69931550T DE 69931550 T DE69931550 T DE 69931550T DE 69931550 D1 DE69931550 D1 DE 69931550D1
Authority
DE
Germany
Prior art keywords
encryption method
image encryption
image
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
Application number
DE69931550T
Other languages
English (en)
Other versions
DE69931550T2 (de
Inventor
Kazuyoshi Tanaka
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.)
NEC Corp
Original Assignee
NEC 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
Application filed by NEC Corp filed Critical NEC Corp
Publication of DE69931550D1 publication Critical patent/DE69931550D1/de
Application granted granted Critical
Publication of DE69931550T2 publication Critical patent/DE69931550T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption

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)
  • Television Signal Processing For Recording (AREA)
DE1999631550 1998-04-08 1999-04-08 Bildverschlüsselungsmethode und -gerät Expired - Lifetime DE69931550T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10095797A JPH11298878A (ja) 1998-04-08 1998-04-08 画像スクランブル方法およびそれを実施する装置
JP9579798 1998-04-08

Publications (2)

Publication Number Publication Date
DE69931550D1 true DE69931550D1 (de) 2006-07-06
DE69931550T2 DE69931550T2 (de) 2007-05-10

Family

ID=14147442

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999631550 Expired - Lifetime DE69931550T2 (de) 1998-04-08 1999-04-08 Bildverschlüsselungsmethode und -gerät

Country Status (6)

Country Link
US (1) US6584200B1 (de)
EP (1) EP0949815B1 (de)
JP (1) JPH11298878A (de)
CA (1) CA2268762C (de)
DE (1) DE69931550T2 (de)
HK (1) HK1022800A1 (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344950B (en) * 1998-12-15 2003-05-07 Snell & Wilcox Ltd Encryption of digital video
US6535687B1 (en) 1999-07-23 2003-03-18 Sarnoff Corporation Method and system for deterring electronic video piracy through image rearrangement
US20030237089A1 (en) * 2000-11-15 2003-12-25 Wajs Andrew Augustine System for scrambling content, and system for descrambling scrambled content
BR0212000A (pt) * 2001-08-23 2004-09-28 Polycom Inc Sistema e método para ocultação de erro de vìdeo
FR2843517B1 (fr) * 2002-08-06 2005-02-11 Medialive Dispositif pour le brouillage de contenus multimedias et audiovisuels de type mpeg-4
FR2845556B1 (fr) * 2002-10-03 2005-02-11 Medialive Embrouillage adaptatif et progressif de flux video
FR2845553B1 (fr) * 2002-10-03 2009-10-23 Medialive Desembrouillage adaptatif et progressif de flux video
FR2846178B1 (fr) * 2002-10-21 2005-03-11 Medialive Desembrouillage adaptatif et progressif de flux audio
FR2846179B1 (fr) * 2002-10-21 2005-02-04 Medialive Embrouillage adaptatif et progressif de flux audio
FR2848372B1 (fr) * 2002-12-09 2005-04-01 Medialive Synchronisation de flux audiovisuels securises
US20040174998A1 (en) * 2003-03-05 2004-09-09 Xsides Corporation System and method for data encryption
WO2004109680A1 (en) * 2003-06-05 2004-12-16 Zootech Limited Unlocking an audiovisual product
GB0312874D0 (en) 2003-06-05 2003-07-09 Zoo Digital Group Plc Controlling access to an audiovisual product
KR101244308B1 (ko) * 2003-12-08 2013-03-18 삼성전자주식회사 동영상 파일의 암호화 방법 및 그를 이용한 디지털 저작권관리방법
CN102984133B (zh) * 2004-05-13 2016-11-23 高通股份有限公司 用于分配信息到通信系统的信道的设备
JP4684701B2 (ja) * 2004-11-24 2011-05-18 三菱電機株式会社 スクランブル処理装置、デスクランブル処理装置、スクランブル処理方法及びデスクランブル処理方法
WO2006057032A1 (ja) * 2004-11-24 2006-06-01 Mitsubishi Denki Kabushiki Kaisha スクランブル処理装置、デスクランブル処理装置、スクランブル処理方法及びデスクランブル処理方法
WO2006057047A1 (ja) * 2004-11-26 2006-06-01 Mitsubishi Denki Kabushiki Kaisha スクランブル処理装置、デスクランブル処理装置、スクランブル処理方法及びデスクランブル処理方法
JP4151684B2 (ja) 2005-01-26 2008-09-17 ソニー株式会社 符号化装置、符号化方法および符号化プログラム、並びに撮像装置
JP4716357B2 (ja) * 2005-03-29 2011-07-06 Ｋｄｄｉ株式会社 圧縮データスクランブル配信装置、その再生装置および配信・再生装置
JP4273426B2 (ja) 2005-12-07 2009-06-03 ソニー株式会社 画像処理方法、画像処理装置、画像処理方法のプログラム及び画像処理方法のプログラムを記録した記録媒体
JP4793856B2 (ja) * 2005-12-22 2011-10-12 Ｋｄｄｉ株式会社 画像スクランブル装置および画像デスクランブル装置
JP2008118406A (ja) * 2006-11-06 2008-05-22 Dainippon Printing Co Ltd コンテンツ暗号方法、コンテンツ暗号装置及びコンピュータプログラム
ES2452366T3 (es) 2007-02-14 2014-04-01 Photint Venture Group Inc. Método y sistema para unir imágenes
CN101675663B (zh) * 2007-02-14 2012-08-29 弗廷特风险投资集团 通过重置像素块进行的视频加扰
US8971305B2 (en) * 2007-06-05 2015-03-03 Qualcomm Incorporated Pseudo-random sequence mapping in wireless communications
KR101151107B1 (ko) 2008-08-12 2012-06-01 에스케이플래닛 주식회사 영상 암호화 시스템 및 방법
JP2011101338A (ja) * 2009-10-09 2011-05-19 Sharp Corp 撮像画像処理システム、画像出力方法、プログラムおよび記録媒体

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2641153B1 (de) 1988-12-23 1991-03-01 Europ Rech Electr Lab
US5321748A (en) * 1992-07-02 1994-06-14 General Instrument Corporation, Jerrold Communications Method and apparatus for television signal scrambling using block shuffling
JP2827790B2 (ja) 1993-02-23 1998-11-25 日本電気株式会社 ビデオデータ圧縮装置
JPH0730855A (ja) 1993-07-08 1995-01-31 Sony Corp ビデオデータの記録方法
JPH07135648A (ja) 1993-11-09 1995-05-23 Matsushita Electric Ind Co Ltd 信号処理装置
JPH0767096A (ja) 1993-08-23 1995-03-10 Matsushita Electric Ind Co Ltd スクランブル装置
US5515437A (en) 1993-08-23 1996-05-07 Matsushita Electric Industrial Co., Ltd. Scramble transmission apparatus and signal processing apparatus
JP3493522B2 (ja) 1993-10-20 2004-02-03 ミノルタ株式会社 画像処理装置
FI95756C (fi) 1994-03-21 1996-03-11 Nokia Technology Gmbh Menetelmä digitaalista informaatiota sisältävän bittivirran salaamiseksi ja salauksen purkamiseksi
JPH089359A (ja) 1994-06-21 1996-01-12 Sharp Corp 静止画伝送装置のスクランブル方式
JPH08102949A (ja) 1994-09-30 1996-04-16 Sanyo Electric Co Ltd 圧縮動画像データ処理装置及び処理方法
JPH08181967A (ja) 1994-12-27 1996-07-12 Matsushita Electric Ind Co Ltd スクランブル装置およびデスクランブル装置
JPH0927950A (ja) 1995-07-13 1997-01-28 Matsushita Electric Ind Co Ltd 映像スクランブル方法及び映像スクランブル装置
JPH09214930A (ja) 1996-01-30 1997-08-15 Sanyo Electric Co Ltd スクランブル変換装置及びスクランブル逆変換装置
JPH1013827A (ja) 1996-06-21 1998-01-16 Sony Corp 画像符号化方法、画像信号記録媒体及び画像復号装置
JPH1013828A (ja) 1996-06-21 1998-01-16 Sony Corp 画像符号化方法、画像信号記録媒体、及び画像復号装置
JPH1013858A (ja) * 1996-06-27 1998-01-16 Sony Corp 画像符号化方法、画像復号方法、及び画像信号記録媒体
JPH10145773A (ja) * 1996-11-14 1998-05-29 Toshiba Corp 動画像データの暗号化方法およびその方法が適用されるコンピュータシステム並びに動画像データ符号化／復号化装置
US6064748A (en) * 1998-01-16 2000-05-16 Hewlett-Packard Company Method and apparatus for embedding and retrieving additional data in an encoded data stream

Also Published As

Publication number Publication date
HK1022800A1 (en) 2000-08-18
CA2268762A1 (en) 1999-10-08
EP0949815B1 (de) 2006-05-31
EP0949815A3 (de) 2000-05-10
CA2268762C (en) 2003-01-07
US6584200B1 (en) 2003-06-24
EP0949815A2 (de) 1999-10-13
JPH11298878A (ja) 1999-10-29
DE69931550T2 (de) 2007-05-10

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