AU3344289A - Digital data security system - Google Patents

Digital data security system

Info

Publication number
AU3344289A
AU3344289A AU33442/89A AU3344289A AU3344289A AU 3344289 A AU3344289 A AU 3344289A AU 33442/89 A AU33442/89 A AU 33442/89A AU 3344289 A AU3344289 A AU 3344289A AU 3344289 A AU3344289 A AU 3344289A
Authority
AU
Australia
Prior art keywords
digital data
security system
data security
digital
security
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.)
Abandoned
Application number
AU33442/89A
Other languages
English (en)
Inventor
Laurence Frank Turner
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.)
Imperial College of Science Technology and Medicine
Original Assignee
Imperial College of Science Technology and Medicine
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 Imperial College of Science Technology and Medicine filed Critical Imperial College of Science Technology and Medicine
Publication of AU3344289A publication Critical patent/AU3344289A/en
Abandoned legal-status Critical Current

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]
    • H04N21/80—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
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8358—Generation of protective data, e.g. certificates involving watermark
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
    • G11B20/00123—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers the record carrier being identified by recognising some of its unique characteristics, e.g. a unique defect pattern serving as a physical signature of the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00884—Circuits 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
    • 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
    • H04N21/23892—Multiplex stream processing, e.g. multiplex stream encrypting involving embedding information at multiplex stream level, e.g. embedding a watermark at packet level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91335—Television 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
AU33442/89A 1988-03-18 1989-03-20 Digital data security system Abandoned AU3344289A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888806452A GB8806452D0 (en) 1988-03-18 1988-03-18 Digital data security system
GB8806452 1988-03-18

Publications (1)

Publication Number Publication Date
AU3344289A true AU3344289A (en) 1989-10-05

Family

ID=10633665

Family Applications (1)

Application Number Title Priority Date Filing Date
AU33442/89A Abandoned AU3344289A (en) 1988-03-18 1989-03-20 Digital data security system

Country Status (5)

Country Link
EP (1) EP0406291A1 (ja)
JP (1) JPH03504306A (ja)
AU (1) AU3344289A (ja)
GB (1) GB8806452D0 (ja)
WO (1) WO1989008915A1 (ja)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
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US4972471A (en) * 1989-05-15 1990-11-20 Gary Gross Encoding system
FR2658022B1 (fr) * 1990-02-07 1995-09-22 Telediffusion Fse Procede et systeme de marquage et d'identification d'information numerisee.
US6301369B2 (en) 1992-07-31 2001-10-09 Digimarc Corporation Image marking to permit later identification
US5721788A (en) 1992-07-31 1998-02-24 Corbis Corporation Method and system for digital image signatures
US5768426A (en) 1993-11-18 1998-06-16 Digimarc Corporation Graphics processing system employing embedded code signals
US5748763A (en) 1993-11-18 1998-05-05 Digimarc Corporation Image steganography system featuring perceptually adaptive and globally scalable signal embedding
US6983051B1 (en) 1993-11-18 2006-01-03 Digimarc Corporation Methods for audio watermarking and decoding
US6122403A (en) * 1995-07-27 2000-09-19 Digimarc Corporation Computer system linked by using information in data objects
US6560349B1 (en) 1994-10-21 2003-05-06 Digimarc Corporation Audio monitoring using steganographic information
GB9502274D0 (en) 1995-02-06 1995-03-29 Central Research Lab Ltd Method and apparatus for coding information
WO1996027191A1 (en) * 1995-02-28 1996-09-06 Isis Innovation Limited Covert identification
US6345145B1 (en) 1995-08-25 2002-02-05 Sony Corporation Signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus
EP0766468B1 (en) * 1995-09-28 2006-05-03 Nec Corporation Method and system for inserting a spread spectrum watermark into multimedia data
EP1711015A3 (en) * 1996-02-05 2006-11-08 Matsushita Electric Industrial Co., Ltd. Video signal recording apparatus, video signal regenerating apparatus, image coding apparatus and image decoding apparatus
US5664018A (en) * 1996-03-12 1997-09-02 Leighton; Frank Thomson Watermarking process resilient to collusion attacks
US5949885A (en) * 1996-03-12 1999-09-07 Leighton; F. Thomson Method for protecting content using watermarking
US6381341B1 (en) * 1996-05-16 2002-04-30 Digimarc Corporation Watermark encoding method exploiting biases inherent in original signal
US6229924B1 (en) * 1996-05-16 2001-05-08 Digimarc Corporation Method and apparatus for watermarking video images
US6209096B1 (en) 1996-07-02 2001-03-27 Yamaha Corporation Method and device for storing main information with associated additional information incorporated therein
GB2354858B (en) * 1996-07-02 2001-05-30 Yamaha Corp Method and device for storing main information with associated additional information incorporated therein
US6069914A (en) * 1996-09-19 2000-05-30 Nec Research Institute, Inc. Watermarking of image data using MPEG/JPEG coefficients
US5848155A (en) * 1996-09-04 1998-12-08 Nec Research Institute, Inc. Spread spectrum watermark for embedded signalling
US5915027A (en) * 1996-11-05 1999-06-22 Nec Research Institute Digital watermarking
GB2319930B (en) * 1996-11-27 2001-05-16 Sony Uk Ltd Storage and transmission of one-bit data
US6118741A (en) * 1997-06-19 2000-09-12 Mimnagh; Winslow M. Method and device for recording information on a carrier
US6108434A (en) * 1997-09-12 2000-08-22 Signafy, Inc. Counteracting geometric distortions for DCT based watermarking
US6611599B2 (en) 1997-09-29 2003-08-26 Hewlett-Packard Development Company, L.P. Watermarking of digital object
US6792542B1 (en) 1998-05-12 2004-09-14 Verance Corporation Digital system for embedding a pseudo-randomly modulated auxiliary data sequence in digital samples
WO1999059258A1 (en) * 1998-05-12 1999-11-18 Solana Technology Development Corporation Digital hidden data transport (dhdt)
US6154571A (en) 1998-06-24 2000-11-28 Nec Research Institute, Inc. Robust digital watermarking
JP3651319B2 (ja) 1999-07-16 2005-05-25 日本ビクター株式会社 電子透かし情報記録方法、再生方法、及び電子透かし情報記録装置、再生装置
JP2001344894A (ja) * 2000-05-31 2001-12-14 Sony Corp データ記録媒体、データ記録方法及び装置、データ再生方法及び装置
US7684088B2 (en) 2000-09-20 2010-03-23 Alpvision S.A. Method for preventing counterfeiting or alteration of a printed or engraved surface
LU91698B1 (en) * 2010-06-10 2011-12-12 Pleimo S A System and method for processing digital content

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE13735T1 (de) * 1981-02-16 1985-06-15 British Telecomm Verfahren und geraet zur uebertragung von daten mit digital kodierter sprache.
JPS5885938A (ja) * 1981-11-16 1983-05-23 Toshiba Corp 光学的情報記録方式
DE3523809A1 (de) * 1985-05-21 1986-11-27 Polygram Gmbh, 2000 Hamburg Verfahren zur zeitkompression von informationen in digitaler form
JPH0743825B2 (ja) * 1985-12-04 1995-05-15 ソニー株式会社 ダビング方式

Also Published As

Publication number Publication date
JPH03504306A (ja) 1991-09-19
WO1989008915A1 (en) 1989-09-21
EP0406291A1 (en) 1991-01-09
GB8806452D0 (en) 1988-04-20

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