AU2002239660A1 - Watermaking holograms - Google Patents

Watermaking holograms

Info

Publication number
AU2002239660A1
AU2002239660A1 AU2002239660A AU3966002A AU2002239660A1 AU 2002239660 A1 AU2002239660 A1 AU 2002239660A1 AU 2002239660 A AU2002239660 A AU 2002239660A AU 3966002 A AU3966002 A AU 3966002A AU 2002239660 A1 AU2002239660 A1 AU 2002239660A1
Authority
AU
Australia
Prior art keywords
watermaking
holograms
watermaking holograms
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
AU2002239660A
Inventor
Hugh L. Brunk
J. Scott Carr
Stephen K. Decker
Neil E. Lofgren
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.)
Digimarc Corp
Original Assignee
Digimarc 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
Priority claimed from US09/741,779 external-priority patent/US20020080992A1/en
Application filed by Digimarc Corp filed Critical Digimarc Corp
Publication of AU2002239660A1 publication Critical patent/AU2002239660A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0402—Recording geometries or arrangements
    • G03H1/041—Optical element in the object space affecting the object beam, not otherwise provided for
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005—Adaptation of holography to specific applications
    • G03H1/0011—Adaptation of holography to specific applications for security or authentication
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
    • G06K19/16—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being a hologram or diffraction grating
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
    • G06Q20/341—Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0021—Image watermarking
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements
    • G07D7/0032—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements using holograms
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements
    • G07D7/0034—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements using watermarks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/086—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by passive credit-cards adapted therefor, e.g. constructive particularities to avoid counterfeiting, e.g. by inclusion of a physical or chemical security-layer
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/12—Card verification
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00249—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a photographic apparatus, e.g. a photographic printer or a projector
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H1/024—Hologram nature or properties
    • G03H1/0244—Surface relief holograms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005—Adaptation of holography to specific applications
    • G03H1/0011—Adaptation of holography to specific applications for security or authentication
    • G03H2001/0016—Covert holograms or holobjects requiring additional knowledge to be perceived, e.g. holobject reconstructed only under IR illumination
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005—Adaptation of holography to specific applications
    • G03H1/0011—Adaptation of holography to specific applications for security or authentication
    • G03H2001/0016—Covert holograms or holobjects requiring additional knowledge to be perceived, e.g. holobject reconstructed only under IR illumination
    • G03H2001/0022—Deciphering being performed with numerical or optical key, e.g. with the optical scrambler used during recording
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/40—Synthetic representation, i.e. digital or optical object decomposition
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/40—Synthetic representation, i.e. digital or optical object decomposition
    • G03H2210/44—Digital representation
    • G03H2210/441—Numerical processing applied to the object data other than numerical propagation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3212—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to a job, e.g. communication, capture or filing of an image
    • H04N2201/3215—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to a job, e.g. communication, capture or filing of an image of a time or duration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3225—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document
    • H04N2201/3233—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document of authentication information, e.g. digital signature, watermark
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/328—Processing of the additional information
    • H04N2201/3281—Encryption; Ciphering

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Strategic Management (AREA)
  • Accounting & Taxation (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Business, Economics & Management (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)
  • Holo Graphy (AREA)
AU2002239660A 2000-12-21 2001-12-17 Watermaking holograms Abandoned AU2002239660A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US09/741,779 US20020080992A1 (en) 2000-12-21 2000-12-21 Watermarking holograms
US09741779 2000-12-21
US09923762 2001-08-06
US09/923,762 US6608911B2 (en) 2000-12-21 2001-08-06 Digitally watermaking holograms for use with smart cards
PCT/US2001/049399 WO2002050761A1 (en) 2000-12-21 2001-12-17 Watermaking holograms

Publications (1)

Publication Number Publication Date
AU2002239660A1 true AU2002239660A1 (en) 2002-07-01

Family

ID=27113917

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002239660A Abandoned AU2002239660A1 (en) 2000-12-21 2001-12-17 Watermaking holograms

Country Status (3)

Country Link
US (3) US6608911B2 (en)
AU (1) AU2002239660A1 (en)
WO (1) WO2002050761A1 (en)

Families Citing this family (161)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6546112B1 (en) * 1993-11-18 2003-04-08 Digimarc Corporation Security document with steganographically-encoded authentication data
US5841978A (en) * 1993-11-18 1998-11-24 Digimarc Corporation Network linking method using steganographically embedded data objects
US7113596B2 (en) * 1993-11-18 2006-09-26 Digimarc Corporation Embedding information related to a subject of an identification document in the identification document
US6882738B2 (en) * 1994-03-17 2005-04-19 Digimarc Corporation Methods and tangible objects employing textured machine readable data
US6778682B2 (en) 1994-10-21 2004-08-17 Digimarc Corporation Redundantly embedding auxiliary data in source signals
US7805500B2 (en) * 1995-05-08 2010-09-28 Digimarc Corporation Network linking methods and apparatus
US6385645B1 (en) * 1995-08-04 2002-05-07 Belle Gate Investments B.V. Data exchange system comprising portable data processing units
US6608911B2 (en) 2000-12-21 2003-08-19 Digimarc Corporation Digitally watermaking holograms for use with smart cards
US7162052B2 (en) * 1998-04-16 2007-01-09 Digimarc Corporation Steganographically encoding specular surfaces
US6782115B2 (en) 1998-04-16 2004-08-24 Digimarc Corporation Watermark holograms
US6996213B1 (en) * 1998-09-29 2006-02-07 Sun Microsystems, Inc. Superposition of data over voice
US20020032734A1 (en) * 2000-07-26 2002-03-14 Rhoads Geoffrey B. Collateral data combined with user characteristics to select web site
CN1278236C (en) 1999-06-10 2006-10-04 贝勒加特投资公司 Arrangements storing different versions of a set of data in separate memory area and method for updating a set of data in a memory
AU1586500A (en) * 1999-12-06 2001-06-12 Sun Microsystems, Inc. Computer arrangement using non-refreshed dram
DE69932643T2 (en) * 1999-12-07 2007-04-05 Sun Microsystems, Inc., Santa Clara IDENTIFICATION DEVICE WITH SECURED PHOTO, AND METHOD AND METHOD FOR AUTHENTICATING THIS IDENTIFICATION DEVICE
WO2001043129A1 (en) 1999-12-07 2001-06-14 Sun Microsystems Inc. Computer-readable medium with microprocessor to control reading and computer arranged to communicate with such a medium
US7305104B2 (en) * 2000-04-21 2007-12-04 Digimarc Corporation Authentication of identification documents using digital watermarks
JP2004505354A (en) 2000-07-20 2004-02-19 ベル　ゲイト　インヴェストメント　ベスローテン　フェンノートシャップ METHOD AND SYSTEM FOR PROTECTING DATA TRANSFER AND COMMUNICATION OF DEVICE
FR2824018B1 (en) 2001-04-26 2003-07-04 Arjo Wiggins Sa COVER INCORPORATING A RADIOFREQUENCY IDENTIFICATION DEVICE
DE10121126A1 (en) * 2001-04-30 2002-11-07 Intec Holding Gmbh Identification medium and process for its production
DE60237606D1 (en) * 2001-04-30 2010-10-21 Neology Inc Identification article comprising a transponder and a discontinuously metallized, retroreflective or holographic image field and method of making such an article
US8543823B2 (en) 2001-04-30 2013-09-24 Digimarc Corporation Digital watermarking for identification documents
US7187806B2 (en) * 2001-08-23 2007-03-06 Hewlett-Packard Development Company, L.P. System and method for embedding information within a printed image using block error diffusion halftoning
WO2003052680A1 (en) 2001-12-18 2003-06-26 Digimarc Id System, Llc Multiple image security features for identification documents and methods of making same
US20030120607A1 (en) * 2001-12-20 2003-06-26 Koninklijke Philips Electronics N.V. E-receipt verification system and method
WO2003056500A1 (en) 2001-12-24 2003-07-10 Digimarc Id Systems, Llc Covert variable information on id documents and methods of making same
CA2470547C (en) 2001-12-24 2008-05-20 Digimarc Id Systems, Llc Laser etched security features for identification documents and methods of making same
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
AU2002361855A1 (en) * 2001-12-24 2003-07-15 Digimarc Id Systems Llc Pet based multi-multi-layer smart cards
US7694887B2 (en) 2001-12-24 2010-04-13 L-1 Secure Credentialing, Inc. Optically variable personalized indicia for identification documents
US20030130912A1 (en) 2002-01-04 2003-07-10 Davis Tommy Lee Equipment management system
US7240205B2 (en) * 2002-01-07 2007-07-03 Xerox Corporation Systems and methods for verifying documents
US7551750B2 (en) * 2002-01-09 2009-06-23 Jds Uniphase Corporation Holographic digital watermark
US7152786B2 (en) 2002-02-12 2006-12-26 Digimarc Corporation Identification document including embedded data
US7206431B2 (en) * 2002-02-22 2007-04-17 Symbol Technologies, Inc. System and method for generating and verifying a self-authenticating document
US7076659B2 (en) * 2002-02-25 2006-07-11 Matsushita Electric Industrial Co., Ltd. Enhanced method for digital data hiding
US6987861B2 (en) * 2002-03-19 2006-01-17 Digimarc Corporation Security arrangements for printed documents
US20030179413A1 (en) * 2002-03-19 2003-09-25 Lenz Gary A. Identification card watermarking
WO2003088144A2 (en) * 2002-04-09 2003-10-23 Digimarc Id Systems, Llc Image processing techniques for printing identification cards and documents
US20030204736A1 (en) * 2002-04-25 2003-10-30 International Business Machines Corporation Apparatus for authenticated recording and method therefor
US7824029B2 (en) 2002-05-10 2010-11-02 L-1 Secure Credentialing, Inc. Identification card printer-assembler for over the counter card issuing
US6782116B1 (en) * 2002-11-04 2004-08-24 Mediasec Technologies, Gmbh Apparatus and methods for improving detection of watermarks in content that has undergone a lossy transformation
MXPA04011277A (en) * 2002-05-14 2006-02-22 Mediasec Technologies Gmbh Visible authentication patterns for printed document.
US20040001606A1 (en) * 2002-06-28 2004-01-01 Levy Kenneth L. Watermark fonts
US7260714B2 (en) * 2002-08-20 2007-08-21 Sony Corporation System and method for authenticating wireless component
EP1551644A4 (en) 2002-10-15 2008-01-02 Digimarc Corp Identification document and related methods
US20040258274A1 (en) * 2002-10-31 2004-12-23 Brundage Trent J. Camera, camera accessories for reading digital watermarks, digital watermarking method and systems, and embedding digital watermarks with metallic inks
WO2004049242A2 (en) 2002-11-26 2004-06-10 Digimarc Id Systems Systems and methods for managing and detecting fraud in image databases used with identification documents
US7143953B2 (en) * 2002-12-27 2006-12-05 Konica Minolta Holdings, Inc. IC card, IC card manufacturing method, IC card manufacturing apparatus and IC card judgement system
US20040141210A1 (en) * 2003-01-22 2004-07-22 Wong Ping Wah Method and apparatus for halftone image embedding
US20050010776A1 (en) * 2003-03-31 2005-01-13 Kenen Leo M. Optically variable devices with encrypted embedded data for authentication of identification documents
US7352878B2 (en) * 2003-04-15 2008-04-01 Digimarc Corporation Human perceptual model applied to rendering of watermarked signals
DE602004030434D1 (en) 2003-04-16 2011-01-20 L 1 Secure Credentialing Inc THREE-DIMENSIONAL DATA STORAGE
BRPI0410514A (en) * 2003-04-30 2006-06-20 Du Pont method of detecting the authenticity of an article
AU2003241162A1 (en) * 2003-05-29 2005-01-21 Secure Globe S.A. Method for reproducing a holographic matrix on a support and support
US20050063027A1 (en) * 2003-07-17 2005-03-24 Durst Robert T. Uniquely linking security elements in identification documents
US20050063562A1 (en) * 2003-08-07 2005-03-24 Brunk Hugh L. Conveying fingerprint minutiae with digital watermarks
US8301893B2 (en) 2003-08-13 2012-10-30 Digimarc Corporation Detecting media areas likely of hosting watermarks
US8438395B2 (en) * 2003-09-18 2013-05-07 Digimarc Corporation Digitally watermarking documents associated with vehicles
JP2007509563A (en) * 2003-10-23 2007-04-12 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 Information carrier having integrated circuit, integrated circuit that cannot be cloned, providing method, and computer program
US7685522B1 (en) 2003-11-03 2010-03-23 Adobe Systems Incorporated Self-describing forms
US8181884B2 (en) * 2003-11-17 2012-05-22 Digimarc Corporation Machine-readable features for objects
JP4783003B2 (en) * 2003-11-28 2011-09-28 株式会社東芝 Personal authentication medium issuing device and personal authentication medium issuing method
US20050124320A1 (en) * 2003-12-09 2005-06-09 Johannes Ernst System and method for the light-weight management of identity and related information
WO2005062978A2 (en) * 2003-12-23 2005-07-14 Digimarc Corporation Optically variable personalized indicia for identification documents
US7757095B2 (en) * 2004-02-03 2010-07-13 Tdk Corporation Personal identification method, personal identification system, and optical information recording medium
WO2005079223A2 (en) * 2004-02-13 2005-09-01 Avery Dennison Corporation Tamper monitoring article, system and method
US8127137B2 (en) 2004-03-18 2012-02-28 Digimarc Corporation Watermark payload encryption for media including multiple watermarks
US7240841B2 (en) * 2004-04-08 2007-07-10 Adobe Systems Incorporated Creating and using documents with machine-readable codes
US7469833B1 (en) 2004-04-08 2008-12-30 Adobe Systems Incorporated Creating and using documents with machine-readable codes
US7299972B2 (en) * 2004-04-08 2007-11-27 Adobe Systems Incorporated Creating and using documents with machine-readable codes
WO2005104029A1 (en) * 2004-04-27 2005-11-03 Koninklijke Philips Electronics N.V. Watermarking a compressed information signal
EP1610263A1 (en) * 2004-06-18 2005-12-28 Sicpa Holding S.A. Item carrying at least two data storage elements
US8509472B2 (en) * 2004-06-24 2013-08-13 Digimarc Corporation Digital watermarking methods, programs and apparatus
US7246748B1 (en) * 2004-06-30 2007-07-24 Adobe Systems Incorporated Enabling the use of machine-readable codes
US7303127B2 (en) * 2004-07-29 2007-12-04 Sandisk Corporation Packaged memory devices with various unique physical appearances
WO2006028077A1 (en) * 2004-09-07 2006-03-16 National Printing Bureau, Incorporated Administrative Agency Ovd examination method and examination instrument
US8144558B1 (en) * 2004-09-14 2012-03-27 Doug Carson & Associates, Inc. Hidden patterns on a data storage medium
EP1653395A3 (en) * 2004-10-01 2006-05-10 Axalto SA Protection method for a portable personal object
US7394567B2 (en) * 2004-10-21 2008-07-01 Seiko Epson Corporation Data embedding scheme for duplex color laser printer
US20060091212A1 (en) * 2004-10-28 2006-05-04 International Currency Technologies Corporation Chip card acceptor
US20060095778A1 (en) * 2004-10-29 2006-05-04 Duanfeng He Analog and digital indicia authentication
US7309011B2 (en) * 2004-10-29 2007-12-18 Symbol Technologies, Inc. Method of authenticating products using hardware compatibility flag
US7566004B2 (en) * 2004-10-29 2009-07-28 Symbol Technologies Inc. Method and apparatus for extending the range of a product authentication device
US7856116B2 (en) * 2004-11-09 2010-12-21 Digimarc Corporation Authenticating identification and security documents
CN1922615B (en) * 2004-12-17 2010-05-12 奥林巴斯株式会社 Composite marker information acquisition apparatus
US7212127B2 (en) * 2004-12-20 2007-05-01 Avery Dennison Corp. RFID tag and label
US7703134B2 (en) * 2005-01-28 2010-04-20 Sony Corporation De-authentication of network component
US7307770B2 (en) * 2005-03-14 2007-12-11 Wilkinson Joseph N Hologram imaging device and method of using same
US8570586B2 (en) 2005-05-02 2013-10-29 Digimarc Corporation Active images through digital watermarking
US7711142B2 (en) * 2005-05-03 2010-05-04 Teselle John Method and system for composing a digital signature graphic appearance and specifying a document display location thereof
DE102005024661A1 (en) * 2005-05-30 2006-12-07 Bundesdruckerei Gmbh Safety document e.g. passport, has individual hologram designed as volume hologram in which image of holder as well as coded personal or document oriented data are stored, where data is also stored in another place outside of hologram
JP4170318B2 (en) * 2005-07-12 2008-10-22 シャープ株式会社 Image forming apparatus, control method, control program, and computer-readable recording medium
US9094621B2 (en) * 2005-07-25 2015-07-28 Hewlett-Packard Development Company, L.P. Document management
US20070026204A1 (en) * 2005-07-28 2007-02-01 Michael Patrick Caulley Embedded watermark
CA2637944C (en) * 2006-01-30 2015-04-21 3Dcd, Llc Optically variable device mastering system, method of authenticating articles employing the same, and resultant article
US8090141B2 (en) * 2006-01-31 2012-01-03 Xerox Corporation System and method to automatically establish preferred area for image-wise watermark
US7945070B2 (en) * 2006-02-24 2011-05-17 Digimarc Corporation Geographic-based watermarking keys
US20070204162A1 (en) * 2006-02-24 2007-08-30 Rodriguez Tony F Safeguarding private information through digital watermarking
DE102006012991A1 (en) * 2006-03-22 2007-10-11 Bayer Innovation Gmbh Method and device for optically reading information
CN100374295C (en) * 2006-03-30 2008-03-12 上海市激光技术研究所 Method for making moving-sensing picture-elements holographic maste mask pattern with multiple coding encrypting
DE102006015604A1 (en) * 2006-04-04 2007-10-11 Tesa Scribos Gmbh Storage medium, preferably for a carrier, and reading device and method for reading such a storage medium
US10741034B2 (en) 2006-05-19 2020-08-11 Apdn (B.V.I.) Inc. Security system and method of marking an inventory item and/or person in the vicinity
US20070280073A1 (en) * 2006-05-30 2007-12-06 Verification Technologies, Inc. Authenticating polymeric film
KR100816089B1 (en) * 2006-07-20 2008-03-24 광운대학교 산학협력단 Apparatus and method for watermarking using element image of integrated image having three dimension information
US20110082969A1 (en) * 2006-07-26 2011-04-07 James Joseph Macor Associative data storage devices for authentication of collectable objects
US20080230402A1 (en) * 2006-07-26 2008-09-25 Macor James J Authentication and identification device for a collectable object
US8081304B2 (en) 2006-07-31 2011-12-20 Visualant, Inc. Method, apparatus, and article to facilitate evaluation of objects using electromagnetic energy
US8076630B2 (en) 2006-07-31 2011-12-13 Visualant, Inc. System and method of evaluating an object using electromagnetic energy
US7996173B2 (en) 2006-07-31 2011-08-09 Visualant, Inc. Method, apparatus, and article to facilitate distributed evaluation of objects using electromagnetic energy
US8332645B2 (en) * 2006-09-11 2012-12-11 Yeda Research And Development Co. Ltd Method, apparatus and product for RFID authentication
US20100058065A1 (en) * 2006-12-11 2010-03-04 Koninklijke Philips Electronics N.V. Extracting auxiliary data from a host signal
US7266693B1 (en) * 2007-02-13 2007-09-04 U.S. Bancorp Licensing, Inc. Validated mutual authentication
DE102008013509A1 (en) * 2007-03-30 2008-10-02 Heidelberger Druckmaschinen Ag Method for producing a steganographic image on a printing substrate
US7851110B2 (en) * 2007-04-20 2010-12-14 Photronics, Inc. Secure photomask with blocking aperture
US7943273B2 (en) * 2007-04-20 2011-05-17 Photronics, Inc. Photomask with detector for optimizing an integrated circuit production process and method of manufacturing an integrated circuit using the same
US7790340B2 (en) * 2007-04-20 2010-09-07 Photronics, Inc. Photomask with detector for optimizing an integrated circuit production process and method of manufacturing an integrated circuit using the same
DE102007021716A1 (en) * 2007-05-09 2008-11-13 Siemens Ag Person identifying device for electronics i.e. medical equipment, has comparator comparing data sets read from memory units, and control device formed controlling equipment and/or evaluating data under consideration of comparison result
JP2009005312A (en) * 2007-06-25 2009-01-08 Canon Inc Image processing apparatus and image processing method, computer program, and storage medium
US20090229206A1 (en) * 2008-03-11 2009-09-17 Daniel Christman Decorative holographic tile
JP5002524B2 (en) * 2008-04-25 2012-08-15 キヤノン株式会社 Image processing apparatus, image processing method, and program
AU2009203009A1 (en) * 2008-08-06 2010-02-25 Code Valley Corp Pty Ltd Cooling system
CH699477A1 (en) * 2008-08-29 2010-03-15 Unica Technology Ag Identification feature.
US8510295B1 (en) * 2009-02-13 2013-08-13 Google Inc. Managing resource storage for multi resolution imagery data with zoom level
US8665061B2 (en) * 2009-08-05 2014-03-04 Electro Industries/Gauge Tech Intelligent electronic device having user-authenticating capabilities
US11937022B2 (en) 2009-08-05 2024-03-19 Ei Electronics Llc Intelligent electronic device having user-authenticating capabilities
US10033970B2 (en) 2009-08-05 2018-07-24 Electro Industries/Gauge Tech Intelligent electronic device having image capture capabilities
US11283795B2 (en) 2009-08-05 2022-03-22 Electro Industries/Gauge Tech Intelligent electronic device having image capture capabilities
US8229070B2 (en) * 2009-09-30 2012-07-24 The Board Of Trustees Of The Leland Stanford Junior University Intrafraction motion management using a rough to accurate monitoring strategy
US8348146B1 (en) 2010-05-17 2013-01-08 Cristhian Javier Quintanilla Aurich System and method for determining product authenticity
US9195870B2 (en) * 2010-09-20 2015-11-24 Lumidigm, Inc. Copy-resistant symbol having a substrate and a machine-readable symbol instantiated on the substrate
US9483677B2 (en) * 2010-09-20 2016-11-01 Hid Global Corporation Machine-readable symbols
US11270294B2 (en) * 2010-12-08 2022-03-08 James J. Macor System and method for authentication of collectable objects
US8594453B2 (en) * 2011-08-18 2013-11-26 Hewlett-Packard Development Company, L.P. Method of robust alignment and payload recovery for data-bearing images
US9935775B2 (en) * 2011-10-13 2018-04-03 International Business Machines Corporation Deterring information copying including deterrence of currency counterfeiting
US8888207B2 (en) 2012-02-10 2014-11-18 Visualant, Inc. Systems, methods and articles related to machine-readable indicia and symbols
WO2013170009A1 (en) * 2012-05-09 2013-11-14 Applied Dna Sciences, Inc. Verification of physical encryption taggants uning digital representatives and authentications thereof
US20130329939A1 (en) * 2012-06-12 2013-12-12 Jorg-Ulrich Mohnen Decoding a quilted image representation into a digital asset along with content control data
US20130329938A1 (en) * 2012-06-12 2013-12-12 Jorg-Ulrich Mohnen Encoding digital assets along with content control data as a quilted image representation
US9723050B2 (en) * 2012-11-13 2017-08-01 International Business Machines Corporation Tag authentication and location verification service
US9316581B2 (en) 2013-02-04 2016-04-19 Visualant, Inc. Method, apparatus, and article to facilitate evaluation of substances using electromagnetic energy
US9041920B2 (en) 2013-02-21 2015-05-26 Visualant, Inc. Device for evaluation of fluids using electromagnetic energy
US9963740B2 (en) 2013-03-07 2018-05-08 APDN (B.V.I.), Inc. Method and device for marking articles
WO2014165003A1 (en) 2013-03-12 2014-10-09 Visualant, Inc. Systems and methods for fluid analysis using electromagnetic energy
US9904734B2 (en) 2013-10-07 2018-02-27 Apdn (B.V.I.) Inc. Multimode image and spectral reader
US9268793B2 (en) * 2014-03-12 2016-02-23 Google Inc. Adjustment of facial image search results
ES2978925T3 (en) 2014-03-18 2024-09-23 Apdn B V I Inc Encrypted optical markers for security applications
US10745825B2 (en) 2014-03-18 2020-08-18 Apdn (B.V.I.) Inc. Encrypted optical markers for security applications
CN104144297A (en) * 2014-08-19 2014-11-12 诚迈科技（南京）股份有限公司 System and method for automatically adding watermarks to shot pictures
EP3350051B1 (en) 2015-09-14 2022-08-03 Neology, Inc. Embedded on-board diagnostic (obd) device for a vehicle
WO2017141184A1 (en) 2016-02-17 2017-08-24 Dupont Authentication, Inc Method for determining authenticity using images that exhibit parallax
US10519605B2 (en) 2016-04-11 2019-12-31 APDN (B.V.I.), Inc. Method of marking cellulosic products
US10878392B2 (en) 2016-06-28 2020-12-29 Microsoft Technology Licensing, Llc Control and access of digital files for three dimensional model printing
US9894240B1 (en) * 2016-07-28 2018-02-13 Amer Said Rabia Mubarak Aljabri Document forgery detection system
US10995371B2 (en) 2016-10-13 2021-05-04 Apdn (B.V.I.) Inc. Composition and method of DNA marking elastomeric material
WO2018126031A1 (en) * 2016-12-30 2018-07-05 Pless Robert Bryan Secure financial transactions with smartphone cameras using glitter displays on physical payment mediums
US10920274B2 (en) 2017-02-21 2021-02-16 Apdn (B.V.I.) Inc. Nucleic acid coated submicron particles for authentication
DE112018000705T5 (en) 2017-03-06 2019-11-14 Cummins Filtration Ip, Inc. DETECTION OF REAL FILTERS WITH A FILTER MONITORING SYSTEM
CN107688843B (en) * 2017-05-17 2020-07-07 上海冠众光学科技有限公司 Hologram generating method and device containing watermark information
US10542619B2 (en) * 2017-12-12 2020-01-21 Eastman Kodak Company Electronic element with embedded information
CN111062323B (en) * 2019-12-16 2023-06-02 腾讯科技（深圳）有限公司 Face image transmission method, numerical value transfer method, device and electronic equipment

Family Cites Families (271)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US41591A (en) * 1864-02-16 Improvement in feed-water heaters for l
US4150781A (en) * 1974-08-08 1979-04-24 Johnson Everett A Access authentication system
DE2812841A1 (en) * 1978-03-23 1979-09-27 Siemens Ag IDENTIFICATION WITH A HOLOGRAM AND PROCEDURE FOR ITS PRODUCTION
DE2943436A1 (en) 1979-10-26 1981-05-07 Wolfram Dr.-Ing. 5100 Aachen Szepanski Security coding system for documents - has cover coding printed on document and optically scanned for comparison with normal text
US4421380A (en) * 1980-10-06 1983-12-20 Mcgrew Stephen P Full-color hologram
US4532508A (en) * 1983-04-01 1985-07-30 Siemens Corporate Research & Support, Inc. Personal authentication system
SE463897B (en) * 1983-07-01 1991-02-04 Esselte Security Syst Ab PROCEDURE PROVIDES TO SAY SIMPLE CODES
US4641017A (en) * 1983-12-15 1987-02-03 Herman Lopata Fraud resistant credit card system
IT1226491B (en) 1986-07-01 1991-01-16 Bruno Fabbiani SECURITY DOCUMENT PROVIDED WITH A HOLOGRAM
US5194971A (en) * 1986-10-14 1993-03-16 American Bank Note Holographics, Inc. Computer aided holography and holographic computer graphics
US4778262A (en) * 1986-10-14 1988-10-18 American Bank Note Holographics, Inc. Computer aided holography and holographic computer graphics
CA1328363C (en) * 1986-10-15 1994-04-12 Yoichi Fukushima Optical recording card having hologram contained therein and method of producing the same
US4896363A (en) * 1987-05-28 1990-01-23 Thumbscan, Inc. Apparatus and method for matching image characteristics such as fingerprint minutiae
US5145212A (en) 1988-02-12 1992-09-08 American Banknote Holographics, Inc. Non-continuous holograms, methods of making them and articles incorporating them
GB8809346D0 (en) * 1988-04-20 1988-05-25 Emi Plc Thorn Improvements relating to marked recorded signals
US5045952A (en) * 1989-08-21 1991-09-03 Xerox Corporation Method for edge enhanced error diffusion
DE3932505C2 (en) * 1989-09-28 2001-03-15 Gao Ges Automation Org Data carrier with an optically variable element
US5095194A (en) * 1989-10-12 1992-03-10 Joseph Barbanell Holographic credit card with automatical authentication and verification
US4963756A (en) * 1989-10-13 1990-10-16 Hewlett-Packard Company Focused line identifier for a bar code reader
JPH03185585A (en) 1989-12-15 1991-08-13 Toshiba Corp Method and device for deciding validity of id card
US5337361C1 (en) 1990-01-05 2001-05-15 Symbol Technologies Inc Record with encoded data
US5138468A (en) * 1990-02-02 1992-08-11 Dz Company Keyless holographic lock
US5117296A (en) * 1990-07-17 1992-05-26 Hoebing John L Apparatus and synthetic holography
US5396559A (en) * 1990-08-24 1995-03-07 Mcgrew; Stephen P. Anticounterfeiting method and device utilizing holograms and pseudorandom dot patterns
US5869819A (en) * 1994-08-17 1999-02-09 Metrologic Instuments Inc. Internet-based system and method for tracking objects bearing URL-encoded bar code symbols
US5285438A (en) * 1991-10-31 1994-02-08 Regents Of The University Of California Motionless parallel readout head for an optical disk recorded with arrayed one-dimensional holograms
US5347375A (en) * 1991-11-26 1994-09-13 Kabushiki Kaisha Toshiba Computer-assisted holographic image formation technique which determines interference pattern data used to form the holographic
US5955961A (en) 1991-12-09 1999-09-21 Wallerstein; Robert S. Programmable transaction card
US5237433A (en) * 1992-01-03 1993-08-17 Haines Kenneth A Methods of hologram construction using computer-processed objects
AU678146B2 (en) * 1992-01-03 1997-05-22 Simian Company, Inc. Methods of hologram constructions using computer-processed objects
US5432329A (en) * 1992-02-07 1995-07-11 American Bank Note Holographics Automated holographic optical recognition and decoding system for verification
US5336871A (en) * 1992-02-07 1994-08-09 American Bank Note Holographics, Incorporated Holographic enhancement of card security
US5422744A (en) * 1992-06-12 1995-06-06 Symbol Technologies, Inc. Bar code incorporated into holographic display
US5900954A (en) * 1992-06-01 1999-05-04 Symbol Technologies, Inc. Machine readable record carrier with hologram
US5306899A (en) * 1992-06-12 1994-04-26 Symbol Technologies, Inc. Authentication system for an item having a holographic display using a holographic record
US5721788A (en) 1992-07-31 1998-02-24 Corbis Corporation Method and system for digital image signatures
JP3238755B2 (en) * 1992-08-21 2001-12-17 富士通株式会社 Hologram creation and stereoscopic display method and stereoscopic display device
GB2271193B (en) * 1992-09-30 1996-03-20 Fujitsu Ltd Holographic stereogram
JP2999637B2 (en) * 1992-10-14 2000-01-17 富士通株式会社 Hologram information creation method
US5321751A (en) * 1993-02-18 1994-06-14 Eastman Kodak Company Method and apparatus for credit card verification
US5448053A (en) * 1993-03-01 1995-09-05 Rhoads; Geoffrey B. Method and apparatus for wide field distortion-compensated imaging
DE4311295A1 (en) * 1993-04-02 1994-10-06 Borus Spezialverfahren Identification system
US5365586A (en) * 1993-04-09 1994-11-15 Washington University Method and apparatus for fingerprinting magnetic media
US5393634A (en) * 1993-05-27 1995-02-28 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Continuous phase and amplitude holographic elements
EP0642060B1 (en) 1993-09-03 1999-04-07 Kabushiki Kaisha Toshiba Apparatus for steganographic embedding of information into colour images
US5515498A (en) * 1993-10-01 1996-05-07 The Regents Of The University Of Colorado Optoelectronic computer graphics system and method
US6449377B1 (en) * 1995-05-08 2002-09-10 Digimarc Corporation Methods and systems for watermark processing of line art images
US6580819B1 (en) * 1993-11-18 2003-06-17 Digimarc Corporation Methods of producing security documents having digitally encoded data and documents employing same
US6636615B1 (en) 1998-01-20 2003-10-21 Digimarc Corporation Methods and systems using multiple watermarks
US6424725B1 (en) 1996-05-16 2002-07-23 Digimarc Corporation Determining transformations of media signals with embedded code signals
US6614914B1 (en) 1995-05-08 2003-09-02 Digimarc Corporation Watermark embedder and reader
US5862260A (en) 1993-11-18 1999-01-19 Digimarc Corporation Methods for surveying dissemination of proprietary empirical data
US5768426A (en) * 1993-11-18 1998-06-16 Digimarc Corporation Graphics processing system employing embedded code signals
US6546112B1 (en) * 1993-11-18 2003-04-08 Digimarc Corporation Security document with steganographically-encoded authentication data
US20020009208A1 (en) 1995-08-09 2002-01-24 Adnan Alattar Authentication of physical and electronic media objects using digital watermarks
US6549638B2 (en) 1998-11-03 2003-04-15 Digimarc Corporation Methods for evidencing illicit use of a computer system or device
US5832119C1 (en) 1993-11-18 2002-03-05 Digimarc Corp Methods for controlling systems using control signals embedded in empirical data
US7171016B1 (en) 1993-11-18 2007-01-30 Digimarc Corporation Method for monitoring internet dissemination of image, video and/or audio files
US6516079B1 (en) 2000-02-14 2003-02-04 Digimarc Corporation Digital watermark screening and detecting strategies
USRE40919E1 (en) 1993-11-18 2009-09-22 Digimarc Corporation Methods for surveying dissemination of proprietary empirical data
US5710834A (en) * 1995-05-08 1998-01-20 Digimarc Corporation Method and apparatus responsive to a code signal conveyed through a graphic image
US7158654B2 (en) * 1993-11-18 2007-01-02 Digimarc Corporation Image processor and image processing method
US7044395B1 (en) 1993-11-18 2006-05-16 Digimarc Corporation Embedding and reading imperceptible codes on objects
US5636292C1 (en) 1995-05-08 2002-06-18 Digimarc Corp Steganography methods employing embedded calibration data
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
US5841886A (en) 1993-11-18 1998-11-24 Digimarc Corporation Security system for photographic identification
US6611607B1 (en) * 1993-11-18 2003-08-26 Digimarc Corporation Integrating digital watermarks in multimedia content
US6408082B1 (en) 1996-04-25 2002-06-18 Digimarc Corporation Watermark detection using a fourier mellin transform
US7313251B2 (en) 1993-11-18 2007-12-25 Digimarc Corporation Method and system for managing and controlling electronic media
US5841978A (en) 1993-11-18 1998-11-24 Digimarc Corporation Network linking method using steganographically embedded data objects
US5822436A (en) 1996-04-25 1998-10-13 Digimarc Corporation Photographic products and methods employing embedded information
US7515733B2 (en) 1993-11-18 2009-04-07 Digimarc Corporation Methods and arrangements employing digital content items
US6681029B1 (en) 1993-11-18 2004-01-20 Digimarc Corporation Decoding steganographic messages embedded in media signals
US6681028B2 (en) * 1995-07-27 2004-01-20 Digimarc Corporation Paper-based control of computer systems
US6345104B1 (en) 1994-03-17 2002-02-05 Digimarc Corporation Digital watermarks and methods for security documents
US6522770B1 (en) * 1999-05-19 2003-02-18 Digimarc Corporation Management of documents and other objects using optical devices
US6947571B1 (en) 1999-05-19 2005-09-20 Digimarc Corporation Cell phones with optical capabilities, and related applications
US20020170966A1 (en) 1995-07-27 2002-11-21 Hannigan Brett T. Identification document including embedded data
US5607188A (en) * 1994-06-24 1997-03-04 Imation Corp. Marking of optical disc for customized identification
US5612943A (en) * 1994-07-05 1997-03-18 Moses; Robert W. System for carrying transparent digital data within an audio signal
US6879701B1 (en) 1994-10-21 2005-04-12 Digimarc Corporation Tile-based digital watermarking techniques
US5646997A (en) 1994-12-14 1997-07-08 Barton; James M. Method and apparatus for embedding authentication information within digital data
US5530759A (en) 1995-02-01 1996-06-25 International Business Machines Corporation Color correct digital watermarking of images
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
JP3185585B2 (en) 1995-02-16 2001-07-11 ブラザー工業株式会社 Photocurable composition and photosensitive capsule
WO1996032710A1 (en) * 1995-04-10 1996-10-17 Corporate Computer Systems, Inc. System for compression and decompression of audio signals for digital transmission
US6813366B1 (en) 1995-05-08 2004-11-02 Digimarc Corporation Steganographic decoding with transform to spatial domain
US6728390B2 (en) * 1995-05-08 2004-04-27 Digimarc Corporation Methods and systems using multiple watermarks
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
US6763123B2 (en) 1995-05-08 2004-07-13 Digimarc Corporation Detection of out-of-phase low visibility watermarks
US7486799B2 (en) * 1995-05-08 2009-02-03 Digimarc Corporation Methods for monitoring audio and images on the internet
US6718046B2 (en) 1995-05-08 2004-04-06 Digimarc Corporation Low visibility watermark using time decay fluorescence
US6988202B1 (en) * 1995-05-08 2006-01-17 Digimarc Corporation Pre-filteriing to increase watermark signal-to-noise ratio
US6721440B2 (en) 1995-05-08 2004-04-13 Digimarc Corporation Low visibility watermarks using an out-of-phase color
US7224819B2 (en) 1995-05-08 2007-05-29 Digimarc Corporation Integrating digital watermarks in multimedia content
US6590996B1 (en) 2000-02-14 2003-07-08 Digimarc Corporation Color adaptive watermarking
US5786910A (en) * 1995-05-11 1998-07-28 Advanced Deposition Technologies, Inc. Pattern metallized optical varying security devices
US5757521A (en) * 1995-05-11 1998-05-26 Advanced Deposition Technologies, Inc. Pattern metallized optical varying security devices
JPH08310170A (en) * 1995-05-18 1996-11-26 Dainippon Printing Co Ltd Printed matter with hologram and preparation therefor
US5613004A (en) * 1995-06-07 1997-03-18 The Dice Company Steganographic method and device
US6650761B1 (en) 1999-05-19 2003-11-18 Digimarc Corporation Watermarked business cards and methods
US7006661B2 (en) 1995-07-27 2006-02-28 Digimarc Corp Digital watermarking systems and methods
US8379908B2 (en) 1995-07-27 2013-02-19 Digimarc Corporation Embedding and reading codes on objects
US8429205B2 (en) 1995-07-27 2013-04-23 Digimarc Corporation Associating data with media signals in media signal systems through auxiliary data steganographically embedded in the media signals
US7095871B2 (en) 1995-07-27 2006-08-22 Digimarc Corporation Digital asset management and linking media signals with related data using watermarks
US6829368B2 (en) 2000-01-26 2004-12-07 Digimarc Corporation Establishing and interacting with on-line media collections using identifiers in media signals
US20030040957A1 (en) * 1995-07-27 2003-02-27 Willam Y. Conwell Advertising employing watermarking
US7003731B1 (en) * 1995-07-27 2006-02-21 Digimare Corporation User control and activation of watermark enabled objects
US7051086B2 (en) 1995-07-27 2006-05-23 Digimarc Corporation Method of linking on-line data to printed documents
US6311214B1 (en) * 1995-07-27 2001-10-30 Digimarc Corporation Linking of computers based on optical sensing of digital data
US5786587A (en) * 1995-08-10 1998-07-28 American Bank Note Holographics, Inc. Enhancement of chip card security
US5721781A (en) 1995-09-13 1998-02-24 Microsoft Corporation Authentication system and method for smart card transactions
US6580808B2 (en) 1995-09-25 2003-06-17 Digimarc Corporation Method and apparatus for discerning image distortion by reference to encoded marker signals
JP3850035B2 (en) 1995-10-04 2006-11-29 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 Marking technology for digitally encoded video and / or audio signals
US6000607A (en) 1995-12-08 1999-12-14 Hitachi, Ltd. IC card reader/writer and method of operation thereof
US5838814A (en) 1996-01-02 1998-11-17 Moore; Steven Jerome Security check method and apparatus
US6040883A (en) * 1996-01-04 2000-03-21 University Technology Corporation Programmable hologram generator
US5932119A (en) * 1996-01-05 1999-08-03 Lazare Kaplan International, Inc. Laser marking system
EP0784301B1 (en) 1996-01-08 2002-10-16 Jürgen Dethloff Method and system for the payment of services and portable data carrier to be used in such a system
US6205249B1 (en) * 1998-04-02 2001-03-20 Scott A. Moskowitz Multiple transform utilization and applications for secure digital watermarking
US5903648A (en) * 1996-02-06 1999-05-11 The University Of Connecticut Method and apparatus for encryption
US6268893B1 (en) * 1996-03-11 2001-07-31 American Bank Note Holographics Method and apparatus for a fringe direct writing system
US6095566A (en) * 1996-03-14 2000-08-01 Kabushiki Kaisha Toshiba Image recorded product, image recording system, image reproducing system, and recording medium for use to superimpose-record/reproduce additional information
US7715446B2 (en) 1996-04-25 2010-05-11 Digimarc Corporation Wireless methods and devices employing plural-bit data derived from audio information
US5812744A (en) * 1996-04-30 1998-09-22 Hewlett Packard Company Joint design of dither matrices for a set of colorants
US7685426B2 (en) * 1996-05-07 2010-03-23 Digimarc Corporation Managing and indexing content on a network with image bookmarks and digital watermarks
US20020196272A1 (en) 1998-10-01 2002-12-26 Digimarc Corporation Smart images and image bookmarks for an internet browser
US6307949B1 (en) * 1996-05-07 2001-10-23 Digimarc Corporation Methods for optimizing watermark detection
US6421070B1 (en) 1996-11-12 2002-07-16 Digimarc Corporation Smart images and image bookmarking for an internet browser
US6171734B1 (en) * 1996-05-10 2001-01-09 Graphic Arts Technical Foundation Security printed document to prevent unauthorized copying
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
US7412072B2 (en) 1996-05-16 2008-08-12 Digimarc Corporation Variable message coding protocols for encoding auxiliary data in media signals
US7024016B2 (en) 1996-05-16 2006-04-04 Digimarc Corporation Digital watermarking apparatus and methods
GB9626793D0 (en) * 1996-12-23 1997-02-12 Unilever Plc Antiperspirant or deodorant composition
US5974548A (en) * 1996-07-12 1999-10-26 Novell, Inc. Media-independent document security method and apparatus
US6031914A (en) 1996-08-30 2000-02-29 Regents Of The University Of Minnesota Method and apparatus for embedding data, including watermarks, in human perceptible images
US5809139A (en) * 1996-09-13 1998-09-15 Vivo Software, Inc. Watermarking method and apparatus for compressed digital video
US5789733A (en) * 1996-09-20 1998-08-04 Motorola, Inc. Smart card with contactless optical interface
US5930767A (en) * 1997-05-28 1999-07-27 Motorola, Inc. Transaction methods systems and devices
US5734752A (en) * 1996-09-24 1998-03-31 Xerox Corporation Digital watermarking using stochastic screen patterns
US5825892A (en) 1996-10-28 1998-10-20 International Business Machines Corporation Protecting images with an image watermark
US8005254B2 (en) * 1996-11-12 2011-08-23 Digimarc Corporation Background watermark processing
US7751596B2 (en) 1996-11-12 2010-07-06 Digimarc Corporation Methods and arrangements employing digital content items
EP0851397B1 (en) 1996-11-28 2008-10-01 Nec Corporation Card type recording medium, certifying method and apparatus for the recording medium, forming system for recording medium, enciphering system, decoder therefor, and recording medium
US6130957A (en) * 1996-12-06 2000-10-10 Nippon Telegraph And Telephone Corporation Method and system for producing computer generated holograms realizing real time holographic video production and display
US5875249A (en) * 1997-01-08 1999-02-23 International Business Machines Corporation Invisible image watermark for image verification
US5790703A (en) * 1997-01-21 1998-08-04 Xerox Corporation Digital watermarking using conjugate halftone screens
KR20000064791A (en) * 1997-01-27 2000-11-06 엠. 제이. 엠. 반 캄 Method and system for transmitting content information and additional information related thereto
PL329943A1 (en) 1997-01-27 1999-04-26 Koninkl Philips Electronics Nv Method of entering additional data into an encoded signal
US5988510A (en) * 1997-02-13 1999-11-23 Micron Communications, Inc. Tamper resistant smart card and method of protecting data in a smart card
US6401206B1 (en) * 1997-03-06 2002-06-04 Skylight Software, Inc. Method and apparatus for binding electronic impressions made by digital identities to documents
US5960085A (en) * 1997-04-14 1999-09-28 De La Huerga; Carlos Security badge for automated access control and secure data gathering
FI110035B (en) 1997-04-02 2002-11-15 Juha Rapeli Realization of connection between base device and smart card
DE69836360T2 (en) * 1997-05-22 2007-08-23 Nippon Telegraph And Telephone Corp. System for displaying computer-controlled holographic images
JP3199231B2 (en) 1997-05-27 2001-08-13 日本アイ・ビー・エム株式会社 Method and system for embedding information in three-dimensional shape model
EP0895149B1 (en) * 1997-07-31 2003-09-17 Siemens Aktiengesellschaft Computer system for protecting a file and a method for protecting a file
EP0941605B1 (en) * 1997-09-02 2004-12-15 Koninklijke Philips Electronics N.V. Method and arrangement for detecting a watermark
US5946455A (en) * 1997-10-02 1999-08-31 International Business Machines Corporation Model based error diffusion with correction propagation
AU729762B2 (en) 1997-10-08 2001-02-08 Digimarc Corporation Method and apparatus for a copy-once watermark for video recording
US5949055A (en) * 1997-10-23 1999-09-07 Xerox Corporation Automatic geometric image transformations using embedded signals
US6101602A (en) * 1997-12-08 2000-08-08 The United States Of America As Represented By The Secretary Of The Air Force Digital watermarking by adding random, smooth patterns
US6208745B1 (en) * 1997-12-30 2001-03-27 Sarnoff Corporation Method and apparatus for imbedding a watermark into a bitstream representation of a digital image sequence
US6199144B1 (en) 1997-12-31 2001-03-06 Intel Corporation Method and apparatus for transferring data in a computer system
US6700994B2 (en) * 1998-01-09 2004-03-02 Koninklijke Philips Electronics N.V. Embedding and detecting a watermark in images
US6104812A (en) 1998-01-12 2000-08-15 Juratrade, Limited Anti-counterfeiting method and apparatus using digital screening
EP1050005B1 (en) 1998-01-20 2007-09-05 Digimarc Corporation Multiple watermarking techniques
US6850626B2 (en) 1998-01-20 2005-02-01 Digimarc Corporation Methods employing multiple watermarks
EP1916656B1 (en) 1998-02-27 2010-10-06 Doug Carson & Associates, Inc. Individual adjustment of pit and land transition locations in an optical disc mastering process
US6002804A (en) 1998-03-26 1999-12-14 Hewlett-Packard Company Tone dependent variable halftoning with adjustable algorithm selection
US6069955A (en) * 1998-04-14 2000-05-30 International Business Machines Corporation System for protection of goods against counterfeiting
US6263086B1 (en) 1998-04-15 2001-07-17 Xerox Corporation Automatic detection and retrieval of embedded invisible digital watermarks from halftone images
US7162052B2 (en) 1998-04-16 2007-01-09 Digimarc Corporation Steganographically encoding specular surfaces
US6782115B2 (en) 1998-04-16 2004-08-24 Digimarc Corporation Watermark holograms
US6608911B2 (en) * 2000-12-21 2003-08-19 Digimarc Corporation Digitally watermaking holograms for use with smart cards
US20020080992A1 (en) 2000-12-21 2002-06-27 Decker Stephen K. Watermarking holograms
US6244514B1 (en) 1998-04-20 2001-06-12 Ayao Wada Smart card for storage and retrieval of digitally compressed color images
US6247644B1 (en) 1998-04-28 2001-06-19 Axis Ab Self actuating network smart card device
US6487301B1 (en) 1998-04-30 2002-11-26 Mediasec Technologies Llc Digital authentication with digital and analog documents
US6243480B1 (en) 1998-04-30 2001-06-05 Jian Zhao Digital authentication with analog documents
US6252675B1 (en) 1998-05-08 2001-06-26 Xerox Corporation Apparatus and method for halftone hybrid screen generation
US6233347B1 (en) 1998-05-21 2001-05-15 Massachusetts Institute Of Technology System method, and product for information embedding using an ensemble of non-intersecting embedding generators
US6332194B1 (en) 1998-06-05 2001-12-18 Signafy, Inc. Method for data preparation and watermark insertion
US6587944B2 (en) * 1998-06-29 2003-07-01 Intel Corporation Fragile watermarking for objects
US20030130954A1 (en) 1998-07-31 2003-07-10 Carr J. Scott Postal applications including digital watermarks
US20030105730A1 (en) 1999-05-19 2003-06-05 Rhoads Geoffrey B. Postal meters and systems employing watermarking
US7953824B2 (en) 1998-08-06 2011-05-31 Digimarc Corporation Image sensors worn or attached on humans for imagery identification
US6128411A (en) 1998-08-25 2000-10-03 Xerox Corporation Method for embedding one or more digital images within another digital image
ES2226420T3 (en) * 1998-08-26 2005-03-16 Toppan Printing Co., Ltd. PROCEDURE AND DEVICE FOR THE FORMATION OF IMAGE AND OBJECT ON WHICH THE IMAGE HAS BEEN TRANSFERRED.
US6193163B1 (en) 1998-08-31 2001-02-27 The Standard Register Company Smart card with replaceable chip
US6742712B1 (en) 1998-09-29 2004-06-01 Asa Systems, Inc. Information card and information card system
US6351537B1 (en) * 1998-10-05 2002-02-26 3M Innovative Properties Company Verifiable holographic article
US6219634B1 (en) * 1998-10-14 2001-04-17 Liquid Audio, Inc. Efficient watermark method and apparatus for digital signals
US6320965B1 (en) 1998-10-14 2001-11-20 Liquid Audio, Inc. Secure watermark method and apparatus for digital signals
JP3367434B2 (en) * 1998-11-06 2003-01-14 日本ビクター株式会社 Optical recording medium and counterfeit product detection device
DE69937972T2 (en) 1998-11-19 2009-01-08 Digimarc Corp., Beaverton ID document with photo
US6257486B1 (en) 1998-11-23 2001-07-10 Cardis Research & Development Ltd. Smart card pin system, card, and reader
US6539475B1 (en) * 1998-12-18 2003-03-25 Nec Corporation Method and system for protecting digital data from unauthorized copying
US6321981B1 (en) 1998-12-22 2001-11-27 Eastman Kodak Company Method and apparatus for transaction card security utilizing embedded image data
US6798537B1 (en) * 1999-01-27 2004-09-28 The University Of Delaware Digital color halftoning with generalized error diffusion vector green-noise masks
US6246777B1 (en) 1999-03-19 2001-06-12 International Business Machines Corporation Compression-tolerant watermarking scheme for image authentication
US6442284B1 (en) * 1999-03-19 2002-08-27 Digimarc Corporation Watermark detection utilizing regions with higher probability of success
US7013021B2 (en) * 1999-03-19 2006-03-14 Digimarc Corporation Watermark detection utilizing regions with higher probability of success
US6527173B1 (en) * 1999-03-30 2003-03-04 Victor Company Of Japan, Ltd. System of issuing card and system of certifying the card
US7111170B2 (en) 1999-05-19 2006-09-19 Digimarc Corporation Distributed system for responding to watermarked documents
US20070055884A1 (en) 1999-05-19 2007-03-08 Rhoads Geoffrey B User control and activation of watermark enabled objects
US7406214B2 (en) 1999-05-19 2008-07-29 Digimarc Corporation Methods and devices employing optical sensors and/or steganography
US20010034705A1 (en) 1999-05-19 2001-10-25 Rhoads Geoffrey B. Payment-based systems for internet music
US7261612B1 (en) 1999-08-30 2007-08-28 Digimarc Corporation Methods and systems for read-aloud books
US20100045816A1 (en) * 1999-05-19 2010-02-25 Rhoads Geoffrey B User Feedback in Connection with Object Recognition
US20020032734A1 (en) 2000-07-26 2002-03-14 Rhoads Geoffrey B. Collateral data combined with user characteristics to select web site
US7760905B2 (en) 1999-06-29 2010-07-20 Digimarc Corporation Wireless mobile phone with content processing
US6822769B1 (en) * 1999-06-01 2004-11-23 De La Rue International Limited Security device
US20020131076A1 (en) 1999-06-29 2002-09-19 Davis Bruce L. Distribution and use of trusted photos
US6452594B1 (en) 1999-07-27 2002-09-17 Isurftv Method and apparatus for using a 3D graphics pipeline and 3D imaging for cost effective watermarking
BR0014339A (en) * 1999-08-24 2002-09-24 Ramon Bautista Perez-Salazar Removable optical safety coating deposited on a printed surface and / or product containing this coating
US7502759B2 (en) * 1999-08-30 2009-03-10 Digimarc Corporation Digital watermarking methods and related toy and game applications
US6768980B1 (en) 1999-09-03 2004-07-27 Thomas W. Meyer Method of and apparatus for high-bandwidth steganographic embedding of data in a series of digital signals or measurements such as taken from analog data streams or subsampled and/or transformed digital data
US7174293B2 (en) * 1999-09-21 2007-02-06 Iceberg Industries Llc Audio identification system and method
US6608919B1 (en) 1999-11-10 2003-08-19 Digimarc Corporation Method and apparatus for encoding paper with information
US6325285B1 (en) 1999-11-12 2001-12-04 At&T Corp. Smart card with integrated fingerprint reader
US6636616B1 (en) 1999-11-30 2003-10-21 Xerox Corporation Method and apparatus for digital watermarking using error diffusion
LT4842B (en) * 1999-12-10 2001-09-25 Uab "Geola" Universal digital holographic printer and method
US7450734B2 (en) 2000-01-13 2008-11-11 Digimarc Corporation Digital asset management, targeted searching and desktop searching using digital watermarks
US6535617B1 (en) * 2000-02-14 2003-03-18 Digimarc Corporation Removal of fixed pattern noise and other fixed patterns from media signals
US6385329B1 (en) 2000-02-14 2002-05-07 Digimarc Corporation Wavelet domain watermarks
US7298864B2 (en) 2000-02-19 2007-11-20 Digimarc Corporation Digital watermarks as a gateway and control mechanism
US7142691B2 (en) 2000-03-18 2006-11-28 Digimarc Corporation Watermark embedding functions in rendering description files
WO2001080169A1 (en) 2000-04-17 2001-10-25 Digimarc Corporation Authentication of physical and electronic media objects using digital watermarks
US6996252B2 (en) * 2000-04-19 2006-02-07 Digimarc Corporation Low visibility watermark using time decay fluorescence
US7738673B2 (en) 2000-04-19 2010-06-15 Digimarc Corporation Low visible digital watermarks
US6993149B2 (en) 2001-09-25 2006-01-31 Digimarc Corporation Embedding digital watermarks in spot colors
US7027614B2 (en) 2000-04-19 2006-04-11 Digimarc Corporation Hiding information to reduce or offset perceptible artifacts
US7305104B2 (en) * 2000-04-21 2007-12-04 Digimarc Corporation Authentication of identification documents using digital watermarks
WO2001082246A2 (en) * 2000-04-24 2001-11-01 Visa International Service Association Online payer authentication service
US7191156B1 (en) * 2000-05-01 2007-03-13 Digimarc Corporation Digital watermarking systems
US7111168B2 (en) 2000-05-01 2006-09-19 Digimarc Corporation Digital watermarking systems
US7660429B2 (en) 2000-06-14 2010-02-09 Hewlett-Packard Development Company, L.P. Error diffusion halftone watermarking
US6763121B1 (en) * 2000-06-14 2004-07-13 Hewlett-Packard Development Company, L.P. Halftone watermarking method and system
US20010054144A1 (en) 2000-06-16 2001-12-20 Michael Epstein Confirming the existence of a complete data set under multiple control scenarios
JP3681157B2 (en) * 2000-06-27 2005-08-10 株式会社東芝 Digital watermark detection method, digital watermark detection apparatus, region determination method, and storage medium
US7657058B2 (en) * 2000-07-19 2010-02-02 Digimarc Corporation Watermark orientation signals conveying payload data
JP3511502B2 (en) * 2000-09-05 2004-03-29 インターナショナル・ビジネス・マシーンズ・コーポレーション Data processing detection system, additional information embedding device, additional information detection device, digital content, music content processing device, additional data embedding method, content processing detection method, storage medium, and program transmission device
US6760464B2 (en) 2000-10-11 2004-07-06 Digimarc Corporation Halftone watermarking and related applications
US6694041B1 (en) 2000-10-11 2004-02-17 Digimarc Corporation Halftone watermarking and related applications
AU2002225593A1 (en) 2000-10-17 2002-04-29 Digimarc Corporation User control and activation of watermark enabled objects
US20020176003A1 (en) 2000-10-25 2002-11-28 Seder Phillip Andrew Watermark reading kiosks
US6483927B2 (en) 2000-12-18 2002-11-19 Digimarc Corporation Synchronizing readers of hidden auxiliary data in quantization-based data hiding schemes
US20030026453A1 (en) 2000-12-18 2003-02-06 Sharma Ravi K. Repetition coding of error correction coded messages in auxiliary data embedding applications
US8103877B2 (en) 2000-12-21 2012-01-24 Digimarc Corporation Content identification and electronic tickets, coupons and credits
US6965683B2 (en) * 2000-12-21 2005-11-15 Digimarc Corporation Routing networks for use with watermark systems
JP3847557B2 (en) * 2000-12-22 2006-11-22 シャープ株式会社 Playback device
JP3647372B2 (en) 2000-12-28 2005-05-11 キヤノン株式会社 Image processing apparatus and method
US7248715B2 (en) 2001-04-06 2007-07-24 Digimarc Corporation Digitally watermarking physical media
US8543823B2 (en) 2001-04-30 2013-09-24 Digimarc Corporation Digital watermarking for identification documents
US7502937B2 (en) * 2001-04-30 2009-03-10 Digimarc Corporation Digital watermarking security systems
US7006254B2 (en) 2001-05-03 2006-02-28 International Business Machines Corporation Method and system for data hiding and authentication via halftoning and coordinate projection
US8094869B2 (en) * 2001-07-02 2012-01-10 Digimarc Corporation Fragile and emerging digital watermarks
US6973196B2 (en) 2001-08-15 2005-12-06 Eastman Kodak Company Authentic document and method of making
US20030036453A1 (en) * 2001-08-20 2003-02-20 Kun-Sheng Kuo Planet gear retarder for a servo motor
US7213757B2 (en) 2001-08-31 2007-05-08 Digimarc Corporation Emerging security features for identification documents
US7537170B2 (en) 2001-08-31 2009-05-26 Digimarc Corporation Machine-readable security features for printed objects
US7231061B2 (en) 2002-01-22 2007-06-12 Digimarc Corporation Adaptive prediction filtering for digital watermarking
US20050271246A1 (en) 2002-07-10 2005-12-08 Sharma Ravi K Watermark payload encryption methods and systems
US7443537B2 (en) 2003-09-30 2008-10-28 Digimarc Corporation Methods and apparatuses for printer recalibration
US8181884B2 (en) 2003-11-17 2012-05-22 Digimarc Corporation Machine-readable features for objects
US9058388B2 (en) * 2004-06-22 2015-06-16 Digimarc Corporation Internet and database searching with handheld devices
US8953908B2 (en) 2004-06-22 2015-02-10 Digimarc Corporation Metadata management and generation using perceptual features
US7602817B2 (en) 2007-02-22 2009-10-13 Cisco Technology, Inc. Low deviation field modulation for transfer of information

Also Published As

Publication number Publication date
US20060039581A1 (en) 2006-02-23
US20030210805A1 (en) 2003-11-13
US20020080994A1 (en) 2002-06-27
US6608911B2 (en) 2003-08-19
US6882737B2 (en) 2005-04-19
US8355526B2 (en) 2013-01-15
WO2002050761A1 (en) 2002-06-27

Similar Documents

Publication Publication Date Title
AU2002239660A1 (en) Watermaking holograms
AU6419701A (en) Electropancreatography
AU2001262847A1 (en) Language-understanding
AU2001292739A1 (en) 1-oxorapamycins
AU2001254546A1 (en) Aminopiperidines
AU2000267458A1 (en) Hypercomputer
AU2001239310A1 (en) Decahydro-isoquinolines
AU2001220246A1 (en) Neckphone
AU2002211620A1 (en) Autoanastomosis
AU2001258349A1 (en) Bisacylguanidine
AU2001296577A1 (en) Chlorophyllases
AU2001279754A1 (en) Indoloquinazolinones
AU2002211128A1 (en) Step-bike
AU2001285886A1 (en) 2-guanidino-4-aryl-quinazoline
AU2001290931A1 (en) Ski-snowboard
AU2001293852A1 (en) Sulfonylguanidine
AU2001258924A1 (en) Microsatellite-aflp
AU2002226346A1 (en) 2-aryl-5-trifluoromethylpyridines
AU2001281921A1 (en) Bdellosomes
AU2001291876A1 (en) Triazolo-epothilones
AU2001246864A1 (en) Hypotensors
AU2002214354A1 (en) Neck-phone
AU2001295713A1 (en) Blast-processing
AU2001260192A1 (en) Glycinamides
AU2001226668A1 (en) Crankshaft-starter-generator