ES2043007T3 - Aparato para verificar el marcado de se\ales grabadas. - Google Patents

Aparato para verificar el marcado de se\ales grabadas.

Info

Publication number
ES2043007T3
ES2043007T3 ES89303866T ES89303866T ES2043007T3 ES 2043007 T3 ES2043007 T3 ES 2043007T3 ES 89303866 T ES89303866 T ES 89303866T ES 89303866 T ES89303866 T ES 89303866T ES 2043007 T3 ES2043007 T3 ES 2043007T3
Authority
ES
Spain
Prior art keywords
marking
signal
verify
recorded
monitoring
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
ES89303866T
Other languages
English (en)
Inventor
Gordon Maufe Barry
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.)
Thorn EMI PLC
Original Assignee
Thorn EMI PLC
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 Thorn EMI PLC filed Critical Thorn EMI PLC
Application granted granted Critical
Publication of ES2043007T3 publication Critical patent/ES2043007T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Recording Measured Values (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

ESTE INVENTO SE REFIERE A UN APARATO PARA CONTROLAR EL MARCAJE DE SEÑALES REGISTRADAS. EL APARATO INCLUYE UN ELEMENTO (1,2) PARA GENERAR UNA SEÑAL DE MARCAJE, UN ELEMENTO (3) PARA MODULAR SEÑAL A REGISTRAR CON LA SEÑAL DE MARCAJE, UN ELEMENTO (8) PARA CONTROLAR LA SEÑAL MODULADA MARCADA, Y UN ELEMENTO (1,7) QUE RESPONDE AL ELEMENTO DE CONTROL DE FORMA QUE CUALQUIERA DE LAS SEÑALES DE MARCAJE QUE NO PUEDE SER LEIDA POR EL ELEMENTO DE CONTROL SE REPITE.
ES89303866T 1988-04-20 1989-04-19 Aparato para verificar el marcado de se\ales grabadas. Expired - Lifetime ES2043007T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888809346A GB8809346D0 (en) 1988-04-20 1988-04-20 Improvements relating to marked recorded signals

Publications (1)

Publication Number Publication Date
ES2043007T3 true ES2043007T3 (es) 1993-12-16

Family

ID=10635529

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89303866T Expired - Lifetime ES2043007T3 (es) 1988-04-20 1989-04-19 Aparato para verificar el marcado de se\ales grabadas.

Country Status (7)

Country Link
US (1) US5079648A (es)
EP (1) EP0339859B1 (es)
JP (1) JPH0215462A (es)
AT (1) ATE94305T1 (es)
DE (1) DE68908946T2 (es)
ES (1) ES2043007T3 (es)
GB (1) GB8809346D0 (es)

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EP0987855A2 (en) 1993-11-18 2000-03-22 Digimarc Corporation Method and apparatus for encoding audio with auxiliary digital data
US5862260A (en) * 1993-11-18 1999-01-19 Digimarc Corporation Methods for surveying dissemination of proprietary empirical data
US7171016B1 (en) 1993-11-18 2007-01-30 Digimarc Corporation Method for monitoring internet dissemination of image, video and/or audio files
US6757406B2 (en) 1993-11-18 2004-06-29 Digimarc Corporation Steganographic image processing
US5710834A (en) * 1995-05-08 1998-01-20 Digimarc Corporation Method and apparatus responsive to a code signal conveyed through a graphic image
US6614914B1 (en) 1995-05-08 2003-09-02 Digimarc Corporation Watermark embedder and reader
US6408082B1 (en) 1996-04-25 2002-06-18 Digimarc Corporation Watermark detection using a fourier mellin transform
US6611607B1 (en) * 1993-11-18 2003-08-26 Digimarc Corporation Integrating digital watermarks in multimedia content
US6580819B1 (en) 1993-11-18 2003-06-17 Digimarc Corporation Methods of producing security documents having digitally encoded data and documents employing same
US5822436A (en) 1996-04-25 1998-10-13 Digimarc Corporation Photographic products and methods employing embedded information
USRE40919E1 (en) * 1993-11-18 2009-09-22 Digimarc Corporation Methods for surveying dissemination of proprietary empirical data
US6122403A (en) * 1995-07-27 2000-09-19 Digimarc Corporation Computer system linked by using information in data objects
US6516079B1 (en) 2000-02-14 2003-02-04 Digimarc Corporation Digital watermark screening and detecting strategies
US5832119C1 (en) 1993-11-18 2002-03-05 Digimarc Corp Methods for controlling systems using control signals embedded in empirical data
US6944298B1 (en) * 1993-11-18 2005-09-13 Digimare Corporation Steganographic encoding and decoding of auxiliary codes in media signals
US6983051B1 (en) * 1993-11-18 2006-01-03 Digimarc Corporation Methods for audio watermarking and decoding
US5841978A (en) 1993-11-18 1998-11-24 Digimarc Corporation Network linking method using steganographically embedded data objects
US6449377B1 (en) * 1995-05-08 2002-09-10 Digimarc Corporation Methods and systems for watermark processing of line art images
US5841886A (en) 1993-11-18 1998-11-24 Digimarc Corporation Security system for photographic identification
US5748763A (en) 1993-11-18 1998-05-05 Digimarc Corporation Image steganography system featuring perceptually adaptive and globally scalable signal embedding
US7044395B1 (en) 1993-11-18 2006-05-16 Digimarc Corporation Embedding and reading imperceptible codes on objects
US6424725B1 (en) 1996-05-16 2002-07-23 Digimarc Corporation Determining transformations of media signals with embedded code signals
US5748783A (en) * 1995-05-08 1998-05-05 Digimarc Corporation Method and apparatus for robust information coding
US7313251B2 (en) * 1993-11-18 2007-12-25 Digimarc Corporation Method and system for managing and controlling electronic media
US6882738B2 (en) * 1994-03-17 2005-04-19 Digimarc Corporation Methods and tangible objects employing textured machine readable data
US6869023B2 (en) * 2002-02-12 2005-03-22 Digimarc Corporation Linking documents through digital watermarking
US6968057B2 (en) * 1994-03-17 2005-11-22 Digimarc Corporation Emulsion products and imagery employing steganography
US7039214B2 (en) * 1999-11-05 2006-05-02 Digimarc Corporation Embedding watermark components during separate printing stages
US6522770B1 (en) 1999-05-19 2003-02-18 Digimarc Corporation Management of documents and other objects using optical devices
US6560349B1 (en) 1994-10-21 2003-05-06 Digimarc Corporation Audio monitoring using steganographic information
US5943422A (en) 1996-08-12 1999-08-24 Intertrust Technologies Corp. Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels
US7095854B1 (en) * 1995-02-13 2006-08-22 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
US7133846B1 (en) 1995-02-13 2006-11-07 Intertrust Technologies Corp. Digital certificate support system, methods and techniques for secure electronic commerce transaction and rights management
US6157721A (en) * 1996-08-12 2000-12-05 Intertrust Technologies Corp. Systems and methods using cryptography to protect secure computing environments
US7133845B1 (en) * 1995-02-13 2006-11-07 Intertrust Technologies Corp. System and methods for secure transaction management and electronic rights protection
US20060206397A1 (en) * 1995-02-13 2006-09-14 Intertrust Technologies Corp. Cryptographic methods, apparatus and systems for storage media electronic right management in closed and connected appliances
US5892900A (en) * 1996-08-30 1999-04-06 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
US6658568B1 (en) * 1995-02-13 2003-12-02 Intertrust Technologies Corporation Trusted infrastructure support system, methods and techniques for secure electronic commerce transaction and rights management
US7143290B1 (en) * 1995-02-13 2006-11-28 Intertrust Technologies Corporation Trusted and secure techniques, systems and methods for item delivery and execution
US6948070B1 (en) 1995-02-13 2005-09-20 Intertrust Technologies Corporation Systems and methods for secure transaction management and electronic rights protection
EP2110732A3 (en) * 1995-02-13 2009-12-09 Intertrust Technologies Corporation Systems and methods for secure transaction management and electronic rights protection
US7124302B2 (en) * 1995-02-13 2006-10-17 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
US6721440B2 (en) 1995-05-08 2004-04-13 Digimarc Corporation Low visibility watermarks using an out-of-phase color
US6760463B2 (en) 1995-05-08 2004-07-06 Digimarc Corporation Watermarking methods and media
US6738495B2 (en) 1995-05-08 2004-05-18 Digimarc Corporation Watermarking enhanced to withstand anticipated corruptions
US6744906B2 (en) 1995-05-08 2004-06-01 Digimarc Corporation Methods and systems using multiple watermarks
US20030133592A1 (en) * 1996-05-07 2003-07-17 Rhoads Geoffrey B. Content objects with computer instructions steganographically encoded therein, and associated methods
US7486799B2 (en) * 1995-05-08 2009-02-03 Digimarc Corporation Methods for monitoring audio and images on the internet
US6788800B1 (en) 2000-07-25 2004-09-07 Digimarc Corporation Authenticating objects using embedded data
US6829368B2 (en) 2000-01-26 2004-12-07 Digimarc Corporation Establishing and interacting with on-line media collections using identifiers in media signals
US6577746B1 (en) * 1999-12-28 2003-06-10 Digimarc Corporation Watermark-based object linking and embedding
US6408331B1 (en) 1995-07-27 2002-06-18 Digimarc Corporation Computer linking methods using encoded graphics
US6411725B1 (en) 1995-07-27 2002-06-25 Digimarc Corporation Watermark enabled video objects
US20030056103A1 (en) * 2000-12-18 2003-03-20 Levy Kenneth L. Audio/video commerce application architectural framework
US6381341B1 (en) * 1996-05-16 2002-04-30 Digimarc Corporation Watermark encoding method exploiting biases inherent in original signal
AUPO521897A0 (en) * 1997-02-20 1997-04-11 Telstra R & D Management Pty Ltd Invisible digital watermarks
US7092914B1 (en) * 1997-11-06 2006-08-15 Intertrust Technologies Corporation Methods for matching, selecting, narrowcasting, and/or classifying based on rights management and/or other information
US6804376B2 (en) 1998-01-20 2004-10-12 Digimarc Corporation Equipment employing watermark-based authentication function
US7602940B2 (en) * 1998-04-16 2009-10-13 Digimarc Corporation Steganographic data hiding using a device clock
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US6782115B2 (en) 1998-04-16 2004-08-24 Digimarc Corporation Watermark holograms
US7164413B2 (en) * 1999-05-19 2007-01-16 Digimarc Corporation Enhanced input peripheral
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US7142691B2 (en) * 2000-03-18 2006-11-28 Digimarc Corporation Watermark embedding functions in rendering description files
US6804377B2 (en) 2000-04-19 2004-10-12 Digimarc Corporation Detecting information hidden out-of-phase in color channels
US6912295B2 (en) * 2000-04-19 2005-06-28 Digimarc Corporation Enhancing embedding of out-of-phase signals
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US7346184B1 (en) 2000-05-02 2008-03-18 Digimarc Corporation Processing methods combining multiple frames of image data
US8055899B2 (en) * 2000-12-18 2011-11-08 Digimarc Corporation Systems and methods using digital watermarking and identifier extraction to provide promotional opportunities
US7822969B2 (en) * 2001-04-16 2010-10-26 Digimarc Corporation Watermark systems and methods
ATE509326T1 (de) 2001-12-18 2011-05-15 L 1 Secure Credentialing Inc Mehrfachbildsicherheitsmerkmale zur identifikation von dokumenten und verfahren zu ihrer herstellung
EP1459246B1 (en) * 2001-12-24 2012-05-02 L-1 Secure Credentialing, Inc. Method for full color laser marking of id documents
US7728048B2 (en) 2002-12-20 2010-06-01 L-1 Secure Credentialing, Inc. Increasing thermal conductivity of host polymer used with laser engraving methods and compositions
ATE552120T1 (de) * 2001-12-24 2012-04-15 L 1 Secure Credentialing Inc Verdeckte variableninformationen auf id- dokumenten und verfahren zu ihrer herstellung
US7694887B2 (en) * 2001-12-24 2010-04-13 L-1 Secure Credentialing, Inc. Optically variable personalized indicia for identification documents
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Also Published As

Publication number Publication date
GB8809346D0 (en) 1988-05-25
US5079648A (en) 1992-01-07
EP0339859B1 (en) 1993-09-08
JPH0215462A (ja) 1990-01-19
DE68908946D1 (de) 1993-10-14
EP0339859A1 (en) 1989-11-02
ATE94305T1 (de) 1993-09-15
DE68908946T2 (de) 1994-03-24

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