US Patent No: 6,922,480

Number of patents in Portfolio can not be more than 2000

Methods for encoding security documents

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ALSO PUBLISHED AS: 20030035565
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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Line art on a banknote or other security document is slightly changed to effect the encoding of plural-bit digital data (i.e. the banknote is digitally watermarked). When such a banknote is thereafter scanned, the resulting image data can be recognized as corresponding to a banknote by detection of the encoded data. (Alternatively, the image data can be recognized as corresponding to a banknote by machine detection of other forms of watermarking, or by reference to visible structures characteristic of banknotes.) In response to detection of a banknote, the detecting apparatus (e.g., a scanner, photocopier, or printer) can intervene so as to prevent or deter counterfeiting. For example, the apparatus can interrupt a copying operation, and display a message reminding the operator that it is illegal to reproduce currency. Another option is to dial a remote service and report the attempted reproduction of a banknote. Yet another option is to permit the copying, but to insert forensic tracer data (e.g. steganographically encoded binary data) in the resultant copy. The tracer data can memorialize the serial number of the machine that made the copy and/or the date and time the copy was made. To address privacy concerns, such tracer data is not normally inserted in photocopied output, but is so inserted only when the subject being photocopied is detected as being a banknote.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DIGIMARC CORPORATIONBEAVERTON, OR835

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rhoads, Geoffrey B West Linn, OR 941 40133

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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5,850,481 Steganographic system 285 1995
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5,841,886 Security system for photographic identification 286 1996
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5,581,800 Method and apparatus for automatically identifying a program including a sound signal 259 1995
 
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5,530,759 Color correct digital watermarking of images 401 1995
 
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5,199,081 System for recording an image having a facial image and ID information 187 1990
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MACROVISION CORPORATION (4)
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WISTARIA TRADING, INC. (4)
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OPSEC SECURITY GROUP, INC. (1)
5,336,871 Holographic enhancement of card security 107 1992
 
Photon Imaging Corp. (1)
4,682,794 Secure identification card and system 134 1985
 
PHYXATION, INC. (1)
4,855,827 Method of providing identification, other digital data and multiple audio tracks in video systems 214 1987
 
Polygram International Holding B.V. (1)
4,750,173 Method of transmitting audio information and additional information in digital form 231 1986
 
PORTALS LIMITED OF OVERTON MILL (1)
4,943,093 Security paper for bank notes and the like 68 1988
 
PRETESTING COMPANY, INC. (1)
4,718,106 Survey of radio audience 193 1986
 
PRODUCT ACTIVATION CORPORATION (1)
5,077,608 Video effects system able to intersect a 3-D image with a 2-D image 140 1990
 
Promotech, Association pour la Promotion de la Technologie (1)
4,677,435 Surface texture reading access checking system 142 1985
 
QUALCOMM INCORPORATED (1)
5,103,459 System and method for generating signal waveforms in a CDMA cellular telephone system 1555 1990
 
RAYTHEON BBN TECHNOLOGIES CORP. (1)
5,319,735 Embedded signalling 577 1991
 
RCA Corporation (1)
4,647,974 Station signature system 184 1985
 
REMBRANDT COMMUNICATIONS, LP (1)
4,811,357 Secondary channel for digital modems using spread spectrum subliminal induced modulation 175 1988
 
Rotlex Optics Ltd. (1)
4,776,013 Method and apparatus of encryption of optical images 136 1987
 
RPX CORPORATION (1)
5,825,892 Protecting images with an image watermark 408 1996
 
SCIENTIFIC-ATLANTA, INC. (1)
5,247,364 Method and apparatus for tuning data channels in a subscription television system having in-band data transmissions 272 1991
 
SECURITY PEOPLE, INC. (1)
5,245,329 Access control system with mechanical keys which store data 261 1989
 
SHARP KABUSHIKI KAISHA (1)
5,678,155 Anti-counterfeiting device for use in an image-processing apparatus 44 1995
 
SIEMENS AKTIENGESELLSCHAFT (1)
6,301,360 Method of encoding information using a position-based encoding scheme 60 1997
 
SILANIS TECHNOLOGY INC. (1)
5,606,609 Electronic document verification system and method 604 1994
 
SKY FUN 1, INC. (1)
5,537,223 Rotating non-rotationally symmetrical halftone dots for encoding embedded data in a hyperacuity printer 104 1994
 
SPREAD SPECTRUM SCREENING LLC (1)
5,689,623 Spread spectrum digital screening 68 1995
 
Standard Change-Makers, Inc. (1)
4,618,257 Color-sensitive currency verifier 87 1984
 
Sterling Television Presentations Inc. Video Data Systems Division (1)
4,367,488 Data encoding for television 227 1981
 
SYMANTEC CORPORATION (1)
5,349,655 Method for recovery of a computer program infected by a computer virus 121 1992
 
Technicolor Videocassette of Michigan, Inc. (1)
5,134,496 Bilateral anti-copying device for video systems 117 1989
 
TECHNOLOGY LICENSING CORPORATION (1)
4,665,431 Apparatus and method for receiving audio signals transmitted as part of a television video signal 191 1982
 
TEKTRONIX, INC. (1)
4,969,041 Embedment of data in a video signal 318 1988
 
Teleprompter Corporation (1)
4,379,947 System for transmitting data simultaneously with audio 241 1979
 
The Analytic Sciences Corporation (1)
4,866,771 Signaling system 113 1987
 
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (1)
5,499,294 Digital camera with apparatus for authentication of images produced from an image file 436 1995
 
THE UNIVERSITY OF BRITISH COLUMBIA (1)
4,835,517 Modem for pseudo noise communication on A.C. lines 177 1984
 
THOMSON CONSUMER ELECTRONICS S.A. (1)
5,568,179 Method and apparatus for device control by data transmission in TV lines 78 1993
 
Thorn EM plc (1)
4,963,998 Apparatus for marking a recorded signal 143 1989
 
THORN EMI PATENTS LIMITED (1)
4,297,729 Encoding and decoding of digital recordings 48 1978
 
THORN EMI PLC (1)
5,079,648 Marked recorded signals 194 1989
 
Tokyo Shibaura Denki Kabushiki Kaisha (1)
4,571,489 Automatic bank note transaction apparatus 34 1983
 
TOLTEK ELECTRONICS CORPORATION (1)
4,908,873 Document reproduction security system 299 1983
 
TROY GROUP, INC. (1)
5,550,932 Method for encoding MICR documents 34 1992
 
TTI INVENTIONS C LLC (1)
5,638,446 Method for the secure distribution of electronic files in a distributed environment 241 1995
 
TVWORKS, LLC (1)
6,141,752 Mechanism for facilitating secure storage and retrieval of information on a smart card by an internet service provider using various network computer client devices 88 1998
 
U KROWEL LLC (1)
6,188,787 Image recognition method and device and copier and scanner employing same 40 1997
 
UBS AG, STAMFORD BRANCH (1)
5,168,146 Bi-directional snap-action register display mechanism 35 1989
 
UNISYS CORPORATION (1)
4,908,836 Method and apparatus for decoding multiple bit sequences that are transmitted simultaneously in a single channel 152 1988
 
UNITED PARCEL SERVICE OF AMERICA, INC. (1)
4,874,936 Hexagonal, information encoding article, process and system 255 1988
 
VERANCE CORPORATION (1)
5,774,452 Apparatus and method for encoding and decoding information in audio signals 313 1995
 
VERITEC, INC. (1)
4,972,475 Authenticating pseudo-random code and apparatus 110 1989
 
VERIZON SERVICES CORP. (1)
5,666,487 Network providing signals of different formats to a user by multplexing compressed broadband data with data of a different format into MPEG encoded data stream 326 1995
 
VEXCEL IMAGING CORPORATION (1)
5,040,059 Method and apparatus of image mensuration with selectively visible and invisible reseau grid marks 54 1989
 
WAVEPHORE CORPORATION (1)
5,387,941 Data with video transmitter 195 1992
 
YAMA CAPITAL, LLC (1)
4,663,518 Optical storage identification card and read/write system 215 1985
 
YEDA RESEARCH AND DEVELOPMENT CO. LTD. (1)
5,488,664 Method and apparatus for protecting visual information with printed cryptographic watermarks 146 1994
 
YT ACQUISITION CORPORATION (1)
5,613,012 Tokenless identification system for authorization of electronic transactions and electronic transmissions 610 1995
 
ZEROX - THE DOCUMENT COMPANY SAS (1)
5,982,956 Secure method for duplicating sensitive documents 118 1997
 
Other [Check patent profile for assignment information] (17)
4,528,588 Method and apparatus for marking the information content of an information carrying signal 443 1982
4,595,950 Method and apparatus for marking the information content of an information carrying signal 348 1984
4,712,103 Door lock control system 151 1985
4,972,476 Counterfeit proof ID card having a scrambled facial image 243 1989
4,972,471 Encoding system 307 1989
5,144,660 Securing a computer against undesired write operations to or read operations from a mass storage device 200 1989
5,212,551 Method and apparatus for adaptively superimposing bursts of texts over audio signals and decoder thereof 142 1989
5,150,409 Device for the identification of messages 122 1990
5,396,559 Anticounterfeiting method and device utilizing holograms and pseudorandom dot patterns 221 1990
5,394,274 Anti-copy system utilizing audible and inaudible protection signals 165 1993
5,351,302 Method for authenticating objects identified by images or other identifying information 178 1993
5,434,427 Currency verification device 101 1993
5,416,307 Currency paper verification and denomination device 104 1993
5,446,488 Television programme distribution signal having the capability to selectively block non-programme material 108 1993
5,446,273 Credit card security system 97 1994
5,612,943 System for carrying transparent digital data within an audio signal 124 1994
5,838,814 Security check method and apparatus 104 1996

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
DIGIMARC CORPORATION (24)
8,543,823 Digital watermarking for identification documents 0 2003
8,243,980 Image processing using embedded registration data to determine and compensate for geometric transformation 3 2004
8,094,869 Fragile and emerging digital watermarks 3 2004
7,305,104 Authentication of identification documents using digital watermarks 96 2004
7,978,874 Digital watermarking for workflow by tracking content or content identifiers with respect to time 5 2005
8,355,526 Digitally watermarking holograms 1 2005
7,974,436 Methods, apparatus and programs for generating and utilizing content signatures 4 2006
7,991,182 Methods for steganographic encoding media 0 2006
8,290,202 Methods utilizing steganography 0 2007
8,181,884 Machine-readable features for objects 0 2007
7,555,139 Secure documents with hidden signals, and related methods and systems 59 2007
7,508,955 Authentication of objects using steganography 78 2007
7,965,863 Digital watermarks as a gateway and control mechanism 2 2007
8,000,495 Digital watermarking systems and methods 3 2008
7,970,166 Steganographic encoding methods and apparatus 16 2009
7,831,062 Arrangement of objects in images or graphics to convey a machine-readable signal 40 2009
8,103,879 Processing audio or video content with multiple watermark layers 0 2009
7,986,845 Steganographic systems and methods 0 2009
8,165,341 Methods and apparatus to process imagery or audio content 2 2010
8,165,342 Color image or video processing 1 2010
8,447,067 Location-based arrangements employing mobile devices 2 2010
8,123,134 Apparatus to analyze security features on objects 1 2010
8,150,032 Methods for controlling rendering of images and video 0 2010
8,515,121 Arrangement of objects in images or graphics to convey a machine-readable signal 0 2010
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
8,532,330 Security printing analysis system and method for enhancing security printing 0 2008

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