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GB8806452D0 - Digital data security system - Google Patents

Digital data security system

Info

Publication number
GB8806452D0
GB8806452D0GB888806452AGB8806452AGB8806452D0GB 8806452 D0GB8806452 D0GB 8806452D0GB 888806452 AGB888806452 AGB 888806452AGB 8806452 AGB8806452 AGB 8806452AGB 8806452 D0GB8806452 D0GB 8806452D0
Authority
GB
United Kingdom
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.)
Pending
Application number
GB888806452A
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 London
Original Assignee
Imperial College of London
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 LondonfiledCriticalImperial College of London
Priority to GB888806452ApriorityCriticalpatent/GB8806452D0/en
Publication of GB8806452D0publicationCriticalpatent/GB8806452D0/en
Priority to AU33442/89Aprioritypatent/AU3344289A/en
Priority to EP19890904115prioritypatent/EP0406291A1/en
Priority to JP1503624Aprioritypatent/JPH03504306A/en
Priority to PCT/GB1989/000293prioritypatent/WO1989008915A1/en
Pendinglegal-statusCriticalCurrent

Links

GB888806452A1988-03-181988-03-18Digital data security systemPendingGB8806452D0 (en)

Priority Applications (5)

Application NumberPriority DateFiling DateTitle
GB888806452AGB8806452D0 (en)1988-03-181988-03-18Digital data security system
AU33442/89AAU3344289A (en)1988-03-181989-03-20Digital data security system
EP19890904115EP0406291A1 (en)1988-03-181989-03-20Digital data security system
JP1503624AJPH03504306A (en)1988-03-181989-03-20 digital data protection system
PCT/GB1989/000293WO1989008915A1 (en)1988-03-181989-03-20Digital data security system

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
GB888806452AGB8806452D0 (en)1988-03-181988-03-18Digital data security system

Publications (1)

Publication NumberPublication Date
GB8806452D0true GB8806452D0 (en)1988-04-20

Family

ID=10633665

Family Applications (1)

Application NumberTitlePriority DateFiling Date
GB888806452APendingGB8806452D0 (en)1988-03-181988-03-18Digital data security system

Country Status (5)

CountryLink
EP (1)EP0406291A1 (en)
JP (1)JPH03504306A (en)
AU (1)AU3344289A (en)
GB (1)GB8806452D0 (en)
WO (1)WO1989008915A1 (en)

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US5721788A (en)1992-07-311998-02-24Corbis CorporationMethod and system for digital image signatures
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US6122403A (en)*1995-07-272000-09-19Digimarc CorporationComputer system linked by using information in data objects
US7044395B1 (en)1993-11-182006-05-16Digimarc CorporationEmbedding and reading imperceptible codes on objects
US5841978A (en)1993-11-181998-11-24Digimarc CorporationNetwork linking method using steganographically embedded data objects
USRE40919E1 (en)*1993-11-182009-09-22Digimarc CorporationMethods for surveying dissemination of proprietary empirical data
US5748763A (en)1993-11-181998-05-05Digimarc CorporationImage steganography system featuring perceptually adaptive and globally scalable signal embedding
US6944298B1 (en)1993-11-182005-09-13Digimare CorporationSteganographic encoding and decoding of auxiliary codes in media signals
US7171016B1 (en)1993-11-182007-01-30Digimarc CorporationMethod for monitoring internet dissemination of image, video and/or audio files
US6983051B1 (en)1993-11-182006-01-03Digimarc CorporationMethods for audio watermarking and decoding
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US7039214B2 (en)1999-11-052006-05-02Digimarc CorporationEmbedding watermark components during separate printing stages
US6522770B1 (en)1999-05-192003-02-18Digimarc CorporationManagement of documents and other objects using optical devices
US6869023B2 (en)2002-02-122005-03-22Digimarc CorporationLinking documents through digital watermarking
US6968057B2 (en)1994-03-172005-11-22Digimarc CorporationEmulsion products and imagery employing steganography
US6560349B1 (en)1994-10-212003-05-06Digimarc CorporationAudio monitoring using steganographic information
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US6760463B2 (en)1995-05-082004-07-06Digimarc CorporationWatermarking methods and media
US7486799B2 (en)1995-05-082009-02-03Digimarc CorporationMethods for monitoring audio and images on the internet
US7006661B2 (en)1995-07-272006-02-28Digimarc CorpDigital watermarking systems and methods
US6965682B1 (en)1999-05-192005-11-15Digimarc CorpData transmission by watermark proxy
US6411725B1 (en)1995-07-272002-06-25Digimarc CorporationWatermark enabled video objects
US6577746B1 (en)1999-12-282003-06-10Digimarc CorporationWatermark-based object linking and embedding
US6408331B1 (en)1995-07-272002-06-18Digimarc CorporationComputer linking methods using encoded graphics
US6345145B1 (en)1995-08-252002-02-05Sony CorporationSignal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus
CA2184949C (en)*1995-09-282000-05-30Ingemar J. CoxSecure spread spectrum watermarking for multimedia data
EP1711015A3 (en)*1996-02-052006-11-08Matsushita Electric Industrial Co., Ltd.Video signal recording apparatus, video signal regenerating apparatus, image coding apparatus and image decoding apparatus
US5664018A (en)*1996-03-121997-09-02Leighton; Frank ThomsonWatermarking process resilient to collusion attacks
US5949885A (en)*1996-03-121999-09-07Leighton; F. ThomsonMethod for protecting content using watermarking
US20030056103A1 (en)2000-12-182003-03-20Levy Kenneth L.Audio/video commerce application architectural framework
US6229924B1 (en)*1996-05-162001-05-08Digimarc CorporationMethod and apparatus for watermarking video images
US6381341B1 (en)*1996-05-162002-04-30Digimarc CorporationWatermark encoding method exploiting biases inherent in original signal
GB0023090D0 (en)*1996-07-022000-11-01Yamaha CorpMethod and device for storing main information with associated additional information incorporated therein
US6209096B1 (en)1996-07-022001-03-27Yamaha CorporationMethod and device for storing main information with associated additional information incorporated therein
US5848155A (en)*1996-09-041998-12-08Nec Research Institute, Inc.Spread spectrum watermark for embedded signalling
US6069914A (en)*1996-09-192000-05-30Nec Research Institute, Inc.Watermarking of image data using MPEG/JPEG coefficients
US5915027A (en)*1996-11-051999-06-22Nec Research InstituteDigital watermarking
GB2319930B (en)*1996-11-272001-05-16Sony Uk LtdStorage and transmission of one-bit data
US6118741A (en)*1997-06-192000-09-12Mimnagh; Winslow M.Method and device for recording information on a carrier
US6108434A (en)*1997-09-122000-08-22Signafy, Inc.Counteracting geometric distortions for DCT based watermarking
US6611599B2 (en)1997-09-292003-08-26Hewlett-Packard Development Company, L.P.Watermarking of digital object
US6804376B2 (en)1998-01-202004-10-12Digimarc CorporationEquipment employing watermark-based authentication function
US6792542B1 (en)1998-05-122004-09-14Verance CorporationDigital system for embedding a pseudo-randomly modulated auxiliary data sequence in digital samples
CA2331898A1 (en)*1998-05-121999-11-18Solana Technology Development CorporationDigital hidden data transport (dhdt)
NZ507795A (en)*1998-05-202003-06-30Macrovision CorpMethod and apparatus for watermark detection for specific scales and arbitrary shifts
US6154571A (en)*1998-06-242000-11-28Nec Research Institute, Inc.Robust digital watermarking
JP3651319B2 (en)*1999-07-162005-05-25日本ビクター株式会社 Digital watermark information recording method, reproduction method, digital watermark information recording apparatus, and reproduction apparatus
US6625297B1 (en)2000-02-102003-09-23Digimarc CorporationSelf-orienting watermarks
US7027614B2 (en)2000-04-192006-04-11Digimarc CorporationHiding information to reduce or offset perceptible artifacts
JP2001344894A (en)2000-05-312001-12-14Sony CorpData recording medium, data recording method and device, data reproduction method and device
DE60143487D1 (en)2000-09-202010-12-30Alpvision S A PROCEDURE FOR PREVENTING FORMATION OR CHANGE OF PRINTED OR ENGRAVED SURFACES
RU2262805C2 (en)*2002-12-252005-10-20Государственное образовательное учреждение высшего профессионального образования Самарский государственный технический университетMethod for steganographic protection of secret information
LU91698B1 (en)*2010-06-102011-12-12Pleimo S ASystem and method for processing digital content

Family Cites Families (4)

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ATE13735T1 (en)*1981-02-161985-06-15British Telecomm METHOD AND DEVICE FOR TRANSMISSION OF DATA WITH DIGITAL CODED SPEECH.
JPS5885938A (en)*1981-11-161983-05-23Toshiba CorpOptical information recording system
DE3523809A1 (en)*1985-05-211986-11-27Polygram Gmbh, 2000 Hamburg METHOD FOR TIME COMPRESSION OF INFORMATION IN DIGITAL FORM
JPH0743825B2 (en)*1985-12-041995-05-15ソニー株式会社 Dubbing method

Also Published As

Publication numberPublication date
AU3344289A (en)1989-10-05
WO1989008915A1 (en)1989-09-21
EP0406291A1 (en)1991-01-09
JPH03504306A (en)1991-09-19

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