AT327552T - System for copy protection of recorded signals - Google Patents

System for copy protection of recorded signals

Info

Publication number
AT327552T
AT327552T AT98900142T AT98900142T AT327552T AT 327552 T AT327552 T AT 327552T AT 98900142 T AT98900142 T AT 98900142T AT 98900142 T AT98900142 T AT 98900142T AT 327552 T AT327552 T AT 327552T
Authority
AT
Austria
Prior art keywords
system
copy protection
recorded signals
recorded
signals
Prior art date
Application number
AT98900142T
Other languages
German (de)
Inventor
Johan Paul Marie Gera Linnartz
Original Assignee
Koninkl Philips Electronics Nv
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 to EP97200165 priority Critical
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of AT327552T publication Critical patent/AT327552T/en

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00884Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00General purpose image data processing
    • G06T1/0021Image watermarking
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/91Television signal processing therefor
    • H04N5/913Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91335Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a watermark
AT98900142T 1997-01-27 1998-01-22 System for copy protection of recorded signals AT327552T (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97200165 1997-01-27

Publications (1)

Publication Number Publication Date
AT327552T true AT327552T (en) 2006-06-15

Family

ID=8227947

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98900142T AT327552T (en) 1997-01-27 1998-01-22 System for copy protection of recorded signals

Country Status (10)

Country Link
US (1) US7000113B1 (en)
EP (1) EP0902946B1 (en)
JP (1) JP4046767B2 (en)
KR (1) KR100573627B1 (en)
CN (2) CN1220756A (en)
AT (1) AT327552T (en)
AU (1) AU5337598A (en)
DE (1) DE69834604T2 (en)
TW (1) TW428163B (en)
WO (1) WO1998033176A2 (en)

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US7043051B2 (en) 2001-02-21 2006-05-09 Lg Electronics Inc. Proprietary watermark system for secure digital media and content distribution
US7058201B2 (en) 2001-03-28 2006-06-06 Lg Electronics Inc. Method of embedding watermark into digital image
GB2374718A (en) 2001-04-11 2002-10-23 Hewlett Packard Co Data authentication
KR100493284B1 (en) 2001-05-11 2005-06-03 엘지전자 주식회사 Copy protection method and system for digital media
JP4934923B2 (en) * 2001-08-09 2012-05-23 ソニー株式会社 Information recording apparatus, information reproducing apparatus, and an information recording method, information reproducing method, and computer program
JP3832289B2 (en) * 2001-08-20 2006-10-11 ソニー株式会社 The information recording apparatus, a video signal output device, the method stream output, a program, a recording medium, and data structures
KR20040034698A (en) * 2001-09-05 2004-04-28 코닌클리케 필립스 일렉트로닉스 엔.브이. A robust watermark for DSD signals
CN100390892C (en) * 2001-09-14 2008-05-28 索尼株式会社 Recording medium reproduction method and reproduction apparatus and recording medium recording method and recording apparatus
US7372964B2 (en) * 2001-10-10 2008-05-13 Kabushiki Kaisha Toshiba Method and apparatus for recording information including secret information and method and apparatus for reproduction thereof
US7231061B2 (en) * 2002-01-22 2007-06-12 Digimarc Corporation Adaptive prediction filtering for digital watermarking
CN100401408C (en) 2002-03-28 2008-07-09 皇家飞利浦电子股份有限公司 Decoding of watermarked infornation signals
US7624285B2 (en) 2002-06-20 2009-11-24 Koninklijke Philips Electronics N.V. Method and device for protecting user information against manipulations
JP3813549B2 (en) * 2002-06-28 2006-08-23 株式会社東芝 How to restore and recovery system
JP2004054710A (en) * 2002-07-22 2004-02-19 Sony Corp Information processor, information processing method and information processing system
CH695718A5 (en) * 2002-09-20 2006-07-31 Alpvision Sa A method of generating and applying on a support of a digital spatial marking.
KR20040092649A (en) * 2003-04-24 2004-11-04 엘지전자 주식회사 Method for managing a copy protection information of optical disc
KR100974448B1 (en) * 2003-04-24 2010-08-10 엘지전자 주식회사 Method for managing a copy protection information of optical disc
KR100974449B1 (en) * 2003-04-24 2010-08-10 엘지전자 주식회사 Method for managing a copy protection information of optical disc
KR100972831B1 (en) * 2003-04-24 2010-07-28 엘지전자 주식회사 Protectiog method of encrypted data and reprodecing apparatus therof
JP4247057B2 (en) * 2003-06-30 2009-04-02 パイオニア株式会社 Information recording medium, information reproducing apparatus and information reproducing method
JP4556395B2 (en) * 2003-08-28 2010-10-06 ソニー株式会社 Content identification method and content identification system
US9342662B2 (en) * 2003-09-16 2016-05-17 Media Rights Technologies, Inc. Method and system for controlling video media
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TW200629244A (en) * 2005-02-02 2006-08-16 Ulead Systems Inc Medium content protection method
CN100478921C (en) 2005-02-05 2009-04-15 北京凯诚高清电子技术有限公司 Intelligent playing device and its self-protecting method
JP2009501477A (en) * 2005-07-14 2009-01-15 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ How to embed data
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US8249350B2 (en) * 2006-06-30 2012-08-21 University Of Geneva Brand protection and product autentication using portable devices
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JP5476754B2 (en) * 2008-04-09 2014-04-23 ソニー株式会社 Encrypted stream processing circuit and the encryption stream processing method

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US4644493A (en) * 1984-09-14 1987-02-17 International Business Machines Corporation Implementing a shared higher level of privilege on personal computers for copy protection of software
US4743490A (en) * 1986-02-24 1988-05-10 Minnesota Mining And Manufacturing Company Counterfeit-resistant magnetic recording tape
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US5495466A (en) * 1994-01-10 1996-02-27 Eastman Kodak Company Write verification in an optical recording system by sensing mark formation while writing
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Also Published As

Publication number Publication date
JP2000508813A (en) 2000-07-11
DE69834604D1 (en) 2006-06-29
DE69834604T2 (en) 2007-02-22
KR100573627B1 (en) 2006-11-10
EP0902946B1 (en) 2006-05-24
WO1998033176A3 (en) 1998-10-01
WO1998033176A2 (en) 1998-07-30
AU5337598A (en) 1998-08-18
JP4046767B2 (en) 2008-02-13
EP0902946A2 (en) 1999-03-24
US7000113B1 (en) 2006-02-14
KR20000064792A (en) 2000-11-06
CN1220756A (en) 1999-06-23
CN101079295A (en) 2007-11-28
TW428163B (en) 2001-04-01

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