Method and system for digital image signatures

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5721788
SERIAL NO

07923841

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and system for embedding signatures within visual images in both digital representation and print or film. A signature is inseparably embedded within the visible image, the signature persisting through image transforms that include resizing as well as conversion to print or film and back to digital form. Signature points are selected from among the pixels of an original image. The pixel values of the signature points and surrounding pixels are adjusted by an amount detectable by a digital scanner. The adjusted signature points form a digital signature which is stored for future identification of subject images derived from the image. In one embodiment, a signature is embedded within an image by locating relative extrema in the continuous space of pixel values and selecting the signature points from among the extrema. Preferably, the signature is redundantly embedded in the image such that any of the redundant representations can be used to identify the signature. Identification of a subject image includes ensuring that the subject image is normalized with respect to the original image or the signed image. Preferably, the normalized subject image is compared with the stored digital signature.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
INTERACTIVE HOME SYSTEMSBEAVERTON, OR5

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nitzberg, Mark J Cambridge, MA 23 1570
Powell, Robert D Issaquah, WA 21 1534

Cited Art Landscape

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7130443 Watermarking 45 2000
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6345100 Robust watermark method and apparatus for digital signals 144 1998
6330673 Determination of a best offset to detect an embedded pattern 30 1998
6320965 Secure watermark method and apparatus for digital signals 41 1998
6219634 Efficient watermark method and apparatus for digital signals 82 1998
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8347078 Device certificate individualization 2 2004
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8725646 Output protection levels 0 2005
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9363481 Protected media pipeline 0 2005
8438645 Secure clock with grace periods 4 2005
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8074287 Renewable and individualizable elements of a protected environment 15 2005
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9189605 Protected computing environment 0 2009
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7068811 Protecting images with image markings 17 2002
6614915 Image capture and marking 25 2002
7136503 Encoding hidden data 8 2005
7068812 Decoding hidden data from imagery 17 2005
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7412074 Hiding codes in input data 17 2006
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6823075 Authentication watermarks for printed objects and related applications 143 2001
 
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7289644 Anti-piracy coding of motion pictures 5 2004
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5862260 Methods for surveying dissemination of proprietary empirical data 874 1996
6122403 Computer system linked by using information in data objects 891 1996
6122392 Signal processing to hide plural-bit information in image, video, and audio data 125 1997
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6345104 Digital watermarks and methods for security documents 318 1998
6324573 Linking of computers using information steganographically embedded in data objects 209 1998
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6580819 Methods of producing security documents having digitally encoded data and documents employing same 102 1999
6285776 Methods for identifying equipment used in counterfeiting 163 1999
6681028 Paper-based control of computer systems 175 1999
6278781 Wireless telephony with steganography 69 1999
6404898 Method and system for encoding image and audio content 196 1999
6496591 Video copy-control with plural embedded signals 119 1999
6400827 Methods for hiding in-band digital data in images and video 153 1999
6343138 Security documents with hidden digital data 251 1999
6311214 Linking of computers based on optical sensing of digital data 741 1999
7055034 Method and apparatus for robust embedded data 31 1999
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6408331 Computer linking methods using encoded graphics 150 1999
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6587821 Methods for decoding watermark data from audio, and controlling audio devices in accordance therewith 101 1999
6542618 Methods for watermark decoding 86 1999
6539095 Audio watermarking to convey auxiliary control information, and media embodying same 110 1999
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6363159 Consumer audio appliance responsive to watermark data 208 1999
7044395 Embedding and reading imperceptible codes on objects 129 1999
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6286036 Audio- and graphics-based linking to internet 288 1999
6577746 Watermark-based object linking and embedding 129 1999
6560349 Audio monitoring using steganographic information 110 1999
7522728 Wireless methods and devices employing steganography 20 2000
6330335 Audio steganography 231 2000
6983051 Methods for audio watermarking and decoding 83 2000
6574350 Digital watermarking employing both frail and robust watermarks 234 2000
6625297 Self-orienting watermarks 83 2000
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6965682 Data transmission by watermark proxy 89 2000
6608919 Method and apparatus for encoding paper with information 17 2000
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6266430 Audio or video steganography 240 2000
6868497 Method and apparatus for automatic ID management 32 2000
6963884 Recoverable digital content degradation: method and apparatus 5 2000
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7945781 Method and systems for inserting watermarks in digital signals 33 2000
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6567533 Method and apparatus for discerning image distortion by reference to encoded marker signals 154 2000
6553129 Computer system linked by using information in data objects 236 2000
7346184 Processing methods combining multiple frames of image data 28 2000
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8094949 Music methods and systems 29 2000
6631198 Perceptual modeling of media signals based on local contrast and directional edges 47 2000
6411725 Watermark enabled video objects 471 2000
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6788800 Authenticating objects using embedded data 157 2000
6542620 Signal processing to hide plural-bit information in image, video, and audio data 112 2000
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6647128 Method for monitoring internet dissemination of image, video, and/or audio files 216 2000
6965873 Electronic commerce using optical input device 43 2000
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6512837 Watermarks carrying content dependent signal metrics for detecting and characterizing signal alteration 136 2000
8103542 Digitally marked objects and promotional methods 11 2000
7346776 Authenticating media signals by adjusting frequency characteristics to reference values 22 2000
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6757406 Steganographic image processing 76 2001
6567535 Steganographic system with changing operations 54 2001
6430302 Steganographically encoding a first image in accordance with a second image 180 2001
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6760463 Watermarking methods and media 161 2001
6829368 Establishing and interacting with on-line media collections using identifiers in media signals 360 2001
7072487 Watermark detection using adaptive color projections 27 2001
* 2003/0016,841 Watermark detection using adaptive color projections 10 2001
* 2001/0010,730 Steganographic messaging through imagery 25 2001
7111168 Digital watermarking systems 45 2001
* 2001/0037,313 Digital watermarking systems 12 2001
6580808 Method and apparatus for discerning image distortion by reference to encoded marker signals 142 2001
7127744 Method and apparatus to protect media existing in an insecure format 62 2001
7051086 Method of linking on-line data to printed documents 190 2001
7373513 Transmarking of multimedia signals 19 2001
* 2001/0044,899 Transmarking of multimedia signals 70 2001
* 2003/0009,670 Background watermark processing 19 2001
* 2002/0146,120 Inspecting print quality using digital watermarks 5 2001
* 2002/0009,208 Authentication of physical and electronic media objects using digital watermarks 244 2001
* 6590997 Files and methods employing common information in both header and steganographic embedding 121 2001
7958359 Access control systems 12 2001
7366908 Digital watermarking with content dependent keys and autocorrelation properties for synchronization 16 2001
7098931 Image management system and methods using digital watermarks 31 2001
* 2002/0124,024 Image management system and methods using digital watermarks 9 2001
6675146 Audio steganography 140 2001
* 6560350 Methods for detecting alteration of audio 38 2001
6542927 Linking of computers based on steganographically embedded digital data 305 2001
6721440 Low visibility watermarks using an out-of-phase color 148 2001
6771796 Methods for identifying equipment used in counterfeiting 51 2001
6959386 Hiding encrypted messages in information carriers 67 2001
* 2002/0080,993 Hiding encrypted messages in information carriers 1 2001
* 6590998 Network linking method using information embedded in data objects that have inherent noise 88 2001
7362781 Wireless methods and devices employing steganography 34 2001
* 2002/0034,297 Wireless methods and devices employing steganography 4 2001
6763123 Detection of out-of-phase low visibility watermarks 136 2001
7116781 Counteracting geometric distortions in watermarking 105 2001
* 2002/0118,831 Counteracting geometric distortions in watermarking 3 2001
7058697 Internet linking from image content 151 2001
* 2002/0078,146 Internet linking from audio and image content 18 2001
6718046 Low visibility watermark using time decay fluorescence 154 2001
7277468 Measuring quality of service of broadcast multimedia signals using digital watermark analyses 31 2001
* 2002/0076,084 Measuring quality of service of broadcast multimedia signals using digital watermark analyses 7 2001
6993149 Embedding digital watermarks in spot colors 18 2001
* 2003/0058,477 Embedding digital watermarks in spot colors 3 2001
6920232 Watermark encoding using arbitrary features 94 2001
* 2002/0090,113 Methods for optimizing watermark detection 0 2001
7607016 Including a metric in a digital watermark for media authentication 25 2001
* 2002/0157,005 Including a metric in a digital watermark for media authentication 68 2001
6970573 Self validating security documents utilizing watermarks 100 2001
* 2005/0008,189 Self validating security documents utilizing watermarks 0 2001
6738495 Watermarking enhanced to withstand anticipated corruptions 122 2001
6744906 Methods and systems using multiple watermarks 106 2001
6728390 Methods and systems using multiple watermarks 126 2001
7050603 Watermark encoded video, and related methods 165 2001
7289643 Method, apparatus and programs for generating and utilizing content signatures 273 2001
* 2002/0126,872 Method, apparatus and programs for generating and utilizing content signatures 105 2001
* 6519352 Encoding and decoding in accordance with steganographically-conveyed data 75 2002
6763124 Embedding digital watermarks in spot colors 47 2002
7437430 Network linking using index modulated on data 70 2002
* 2002/0136,430 Network linking method using information embedded in data objects that have inherent noise 1 2002
6654480 Audio appliance and monitoring device responsive to watermark data 100 2002
7054463 Data encoding using frail watermarks 67 2002
6850626 Methods employing multiple watermarks 95 2002
6804376 Equipment employing watermark-based authentication function 52 2002
7111170 Distributed system for responding to watermarked documents 101 2002
* 2002/0112,165 Distributed system for responding to watermarked documents 1 2002
6912295 Enhancing embedding of out-of-phase signals 51 2002
6891959 Hiding information out-of-phase in color channels 50 2002
6804377 Detecting information hidden out-of-phase in color channels 70 2002
* 2002/0168,085 Hiding information out-of-phase in color channels 2 2002
* 2002/0164,052 Enhancing embedding of out-of-phase signals 4 2002
6917724 Methods for opening file on computer via optical sensing 187 2002
6694042 Methods for determining contents of media 133 2002
6694043 Method of monitoring print data for text associated with a hyperlink 145 2002
6567780 Audio with hidden in-band digital data 85 2002
6647129 Method and system for encoding image and audio content 131 2002
7171018 Portable devices and methods employing digital watermarking 174 2002
7519819 Layered security in digital watermarking 21 2002
* 2003/0223,584 Layered security in digital watermarking 45 2002
7043052 Digital authentication with analog documents 57 2002
* 2003/0002,710 Digital authentication with analog documents 9 2002
6754377 Methods and systems for marking printed documents 88 2002
6978036 Tamper-resistant authentication techniques for identification documents 71 2002
* 2003/0031,340 Tamper-resistant authentication techniques for identification documents 3 2002
7039214 Embedding watermark components during separate printing stages 27 2002
6869023 Linking documents through digital watermarking 49 2002
* 2003/0150,922 Linking documents through digital watermarking 10 2002
* 2003/0025,423 Embedding watermark components during separate printing stages 5 2002
6647130 Printable interfaces and digital linking with embedded codes 183 2002
* 7103197 Arrangement for embedding subliminal data in imaging 54 2002
* 2003/0091,189 Arrangement for embedding subliminal data in imaging 3 2002
* 6922480 Methods for encoding security documents 29 2002
* 2003/0035,565 Methods for encoding security documents 4 2002
6700995 Applying digital watermarks using dot gain correction 111 2002
* 2003/0079,130 Applying digital watermarks using dot gain correction 2 2002
6718047 Watermark embedder and reader 154 2002
7113596 Embedding information related to a subject of an identification document in the identification document 68 2002
* 2003/0102,660 Embedding information related to a subject of an identification document in the identification document 1 2002
7113614 Embedding auxiliary signals with multiple components into media signals 247 2002
* 2003/0086,585 Embedding auxiliary signal with multiple components into media signals 3 2002
7054465 Data hiding method and system for embedding and extracting information in signals 135 2002
* 2003/0142,847 Method for monitoring internet dissemination of image, video, and/or audio files 4 2002
7720249 Watermark embedder and reader 52 2002
* 2003/0128,861 Watermark embedder and reader 41 2002
7224819 Integrating digital watermarks in multimedia content 139 2002
* 2003/0103,645 Integrating digital watermarks in multimedia content 47 2002
8505108 Authentication using a digital watermark 5 2002
* 2004/0022,444 Authentication using a digital watermark 116 2002
7577841 Watermark placement in watermarking of time varying media signals 5 2002
* 6768808 Encoding and decoding methods in which decryption data is conveyed steganographically within audio or visual content 70 2002
* 2003/0174,860 Encoding and decoding methods in which decryption data is conveyed steganographically within audio or visual content 2 2002
* 2009/0097,695 Personal document authentication system using watermarking 1 2002
7158654 Image processor and image processing method 99 2003
6768809 Digital watermark screening and detection strategies 127 2003
6804378 Methods and products employing biometrics and steganography 41 2003
7113615 Watermark embedder and reader 154 2003
* 2004/0005,093 Media-independent document security method and apparatus 95 2003
7308110 Methods for marking images 101 2003
* 2003/0228,031 Methods for marking images 3 2003
7263203 Digital watermarks 67 2003
* 2003/0219,144 Digital watermarks 1 2003
7502937 Digital watermarking security systems 17 2003
* 2004/0243,806 Digital watermarking security systems 39 2003
* 2004/0128,512 Digital watermarking systems 42 2003
7499564 Methods for decoding watermark data from audio, and controlling audio devices in accordance therewith 59 2003
* 2004/0015,362 Methods for decoding watermark data from audio, and controlling audio devices in accordance therewith 23 2003
7181022 Audio watermarking to convey auxiliary information, and media embodying same 92 2003
* 2004/0015,363 Audio watermarking to convey auxiliary information, and media employing same 1 2003
* 7003132 Embedding hidden auxiliary code signals in media 75 2003
* 2005/0100,188 Embedding hidden auxiliary code signals in media 0 2003
8190901 Layered security in digital watermarking 7 2003
6917691 Substituting information based on watermark-enable linking 31 2003
* 2004/0039,914 Layered security in digital watermarking 47 2003
* 2003/0202,681 Substituting information based on watermark-enabled linking 1 2003
7286684 Secure document design carrying auxiliary machine readable information 60 2003
* 2003/0215,112 Secure document design carrying auxiliary machine readable information 3 2003
* 2004/0125,125 Embedded data windows in audio sequences and video frames 48 2003
7391880 Color adaptive watermarking 110 2003
* 2004/0125,983 Color adaptive watermarking 33 2003
6987862 Video steganography 116 2003
* 2005/0031,156 Video steganography 2 2003
7567721 Digital watermarking of low bit rate video 19 2003
* 2004/0125,952 Digital watermarking of low bit rate video 22 2003
7050201 Method and apparatus for encoding paper with information 4 2003
* 2004/0131,225 Method and apparatus for encoding paper with information 0 2003
* 6975746 Integrating digital watermarks in multimedia content 138 2003
* 2004/0037,449 Integrating digital watermarks in multimedia content 33 2003
7770013 Digital authentication with digital and analog documents 42 2003
7016516 Authentication of identification documents 59 2003
* 2004/0153,649 Digital authentication with digital and analog documents 142 2003
* 2004/0057,597 Digital authentication with digital and analog documents 2 2003
8438395 Digitally watermarking documents associated with vehicles 1 2003
6993153 Self-orienting watermarks 12 2003
* 2004/0057,598 Self-orienting watermarks 0 2003
7088844 Perceptual modeling of media signals based on local contrast and directional edges 22 2003
* 2004/0136,565 Perceptual modeling of media signals based on local contrast and directional edges 4 2003
8543823 Digital watermarking for identification documents 7 2003
* 2005/0160,271 Identification document and related methods 50 2003
* 2004/0158,724 Digital watermarking for identification documents 73 2003
7986806 Paper products and physical objects as means to access and control a computer or to navigate over or act as a portal on a network 45 2004
* 2005/0013,462 Paper products and physical objects as means to access and control a computer or to navigate over or act as a portal on a network 102 2004
RE40919 Methods for surveying dissemination of proprietary empirical data 94 2004
* 2004/0240,704 Applying digital watermarks using printing process correction 88 2004
* 2004/0258,274 Camera, camera accessories for reading digital watermarks, digital watermarking method and systems, and embedding digital watermarks with metallic inks 115 2004
8243980 Image processing using embedded registration data to determine and compensate for geometric transformation 17 2004
* 2004/0264,733 Image processing using embedded registration data to determine and compensate for geometric transformation 88 2004
7027614 Hiding information to reduce or offset perceptible artifacts 128 2004
7152786 Identification document including embedded data 27 2004
8094869 Fragile and emerging digital watermarks 25 2004
* 2005/0041,835 Fragile and emerging digital watermarks 98 2004
7436976 Digital watermarking systems and methods 25 2004
7760902 Content objects with computer instructions steganographically encoded therein, and associated methods 23 2004
* 2005/0031,159 Content objects with computer instructions steganographically encoded therein, and associated methods 11 2004
* 2005/0063,562 Conveying fingerprint minutiae with digital watermarks 27 2004
7164413 Enhanced input peripheral 57 2004
7706565 Multi-channel digital watermarking 12 2004
7139408 Transform domain watermarking of image signals 87 2004
* 2005/0036,657 Transform domain watermarking of image signals 0 2004
7537170 Machine-readable security features for printed objects 98 2004
* 2005/0156,048 Machine-readable security features for printed objects 10 2004
7305104 Authentication of identification documents using digital watermarks 107 2004
* 2005/0094,848 Authentication of identification documents using digital watermarks 4 2004
7515733 Methods and arrangements employing digital content items 92 2005
* 2005/0196,013 Imagery having technical exposure data steganographically encoded therein 11 2005
7424131 Authentication of physical and electronic media objects using digital watermarks 105 2005
* 2005/0135,656 Authentication of physical and electronic media objects using digital watermarks 1 2005
8108484 Fingerprints and machine-readable codes combined with user characteristics to obtain content or information 4 2005
7177443 Method and apparatus for associating identifiers with content 90 2005
* 2005/0141,751 Method and apparatus for associating identifiers with content 0 2005
* 2005/0216,513 Method and apparatus for automatic ID management 6 2005
8127137 Watermark payload encryption for media including multiple watermarks 14 2005
* 2005/0271,246 Watermark payload encryption methods and systems 45 2005
* 2005/0249,374 Digital watermarking for workflow 28 2005
7876899 Recoverable digital content degradation: method and apparatus 2 2005
* 2005/0262,162 Recoverable digital content degradation: method and apparatus 12 2005
7321667 Data hiding through arrangement of objects 55 2005
* 2005/0207,615 Data hiding through arrangement of objects 1 2005
7738673 Low visible digital watermarks 114 2005
7587601 Digital watermarking methods and apparatus for use with audio and video content 71 2005
* 2006/0008,112 Low visible digital watermarks 11 2005
* 2005/0251,683 Audio/video commerce application architectural framework 58 2005
8429205 Associating data with media signals in media signal systems through auxiliary data steganographically embedded in the media signals 3 2005
8204222 Steganographic encoding and decoding of auxiliary codes in media signals 16 2005
* 2006/0062,386 Steganographic encoding and decoding of auxiliary codes in media signals 63 2005
8891811 Hierarchical watermark detector 0 2005
* 2006/0062,428 Hierarchical watermark detector 3 2005
* 8005254 Background watermark processing 8 2005
* 2006/0013,435 Background watermark processing 92 2005
7567686 Hiding and detecting messages in media signals 65 2005
* 2006/0080,556 Hiding and detecting messages in media signals 6 2005
7444392 Registering with computer systems 92 2005
7269275 Physical objects and validation of physical objects 56 2005
* 2006/0165,256 Physical objects and validation of physical objects 1 2005
* 2006/0149,843 Paper-based control of computer systems 84 2005
7643649 Integrating digital watermarks in multimedia content 110 2005
* 2006/0159,303 Integrating digital watermarks in multimedia content 21 2005
7239734 Authentication of identification documents and banknotes 74 2005
* 7242790 Video steganography 58 2005
* 2006/0133,646 Video steganography 1 2005
7536555 Methods for audio watermarking and decoding 72 2006
* 2006/0109,984 Methods for audio watermarking and decoding 19 2006
* 2007/0204,162 Safeguarding private information through digital watermarking 30 2006
7313251 Method and system for managing and controlling electronic media 108 2006
* 2006/0188,128 Method and System for Managing and Controlling Electronic Media 5 2006
7330563 Documents, articles and authentication of documents and articles 18 2006
* 2007/0098,213 Digital Authentication with Analog Documents 2 2006
8095795 Methods and apparatus for robust embedded data 11 2006
* 2007/0136,597 Methods and Apparatus for Robust Embedded Data 9 2006
7995790 Digital watermark detection using predetermined color projections 12 2006
* 2007/0147,653 Digital Watermark Detection Using Predetermined Color Projections 4 2006
7992003 Methods and systems for inserting watermarks in digital signals 11 2006
* 2006/0251,291 Methods for inserting and detecting watermarks in digital data 137 2006
7483547 Perceptual modeling of media signals for data hiding 7 2006
* 2007/0183,622 Perceptual modeling of media signals for data hiding 2 2006
* 2007/0052,730 Image management system and methods using digital watermarks 18 2006
8626666 Confirming physical custody of objects 0 2006
* 2007/0027,818 Systems and Methods Facilitating Communication with Remote Computers 15 2006
7602940 Steganographic data hiding using a device clock 50 2006
7602977 Digital watermarks 51 2006
* 2007/0076,916 Digital watermarking, steganographic data hiding and indexing content 0 2006
* 2007/0031,000 Digital watermarks 8 2006
7690041 Associating first and second watermarks with audio or video content 7 2006
* 2007/0047,763 Associating First and Second Watermarks with Audio or Video Content 5 2006
7949147 Watermarking compressed data 30 2006
8250660 Digital watermarking applications 4 2006
* 2007/0098,172 Digital Watermarking Applications 25 2006
7806322 Authentication methods and systems including embedded auxiliary data 32 2006
* 2007/0170,248 Authentication Methods and Systems Including Embedded Auxiliary Data 33 2006
7930546 Methods, systems, and sub-combinations useful in media identification 47 2007
* 2007/0174,059 Methods, Systems, and Sub-Combinations Useful in Media Identification 31 2007
7991184 Apparatus to process images and video 0 2007
* 2007/0172,098 Apparatus to Process Images, Video and Objects 49 2007
7639837 Identification documents and authentication of such documents 55 2007
* 2007/0114,788 Identification Documents and Authentication of Such Documents 1 2007
7486799 Methods for monitoring audio and images on the internet 120 2007
7715446 Wireless methods and devices employing plural-bit data derived from audio information 21 2007
7702511 Watermarking to convey auxiliary information, and media embodying same 51 2007
* 2007/0274,523 Watermarking To Convey Auxiliary Information, And Media Embodying Same 23 2007
* 2007/0189,533 Wireless Methods And Devices Employing Steganography 21 2007
7555785 Method and apparatus for content management 16 2007
* 2007/0277,247 Method and Apparatus for Content Management 3 2007
7359528 Monitoring of video or audio based on in-band and out-of-band data 80 2007
* 2007/0274,386 Monitoring of Video or Audio Based on In-Band and Out-of-Band Data 3 2007
* 7433491 Method and apparatus for associating identifiers with content 88 2007
* 2007/0274,564 Method and Apparatus for Associating Identifiers with Content 0 2007
* 2007/0196,024 Digital Authentication with Digital and Analog Documents 11 2007
7987094 Audio encoding to convey auxiliary information, and decoding of same 3 2007
* 2007/0201,835 Audio Encoding to Convey Auxiliary Information, and Media Embodying Same 76 2007
7724919 Methods and systems for steganographic processing 54 2007
* 2007/0195,991 Methods and Systems for Steganographic Processing 0 2007
7349555 Documents and apparatus to encode documents 37 2007
* 2007/0217,493 Authentication of Identification Documents 3 2007
7362879 Substituting objects based on steganographic encoding 24 2007
7427030 Security features for objects and method regarding same 94 2007
* 2007/0246,543 Security Features for Objects and Method Regarding Same 3 2007
7676059 Video steganography or encoding 50 2007
* 2007/0223,592 Video Steganography or Encoding 2 2007
7460726 Integrating steganographic encoding in multimedia content 93 2007
7570784 Identification and protection of security documents 49 2007
* 2008/0118,099 Identification and protection of security documents 6 2007
7415129 Providing reports associated with video and audio content 124 2007
* 2008/0037,824 Video and Audio Steganography and Methods Related Thereto 1 2007
7444000 Content identification, and securing media content with steganographic encoding 96 2007
* 2008/0019,560 Securing Media Content with Steganographic Encoding 13 2007
7796826 Digital watermarks 52 2007
* 2008/0095,397 Digital Watermarks 1 2007
7656930 Assessing quality of service using digital watermark information 23 2007
* 2008/0137,749 Assessing Quality of Service Using Digital Watermark Information 15 2007
* 8027663 Wireless methods and devices employing steganography 4 2007
* 2008/0125,083 Wireless Methods and Devices Employing Steganography 21 2007
7787653 Methods for controlling rendering of images and video 97 2007
* 2008/0134,232 Methods For Controlling Rendering of Images and Video 9 2007
8301893 Detecting media areas likely of hosting watermarks 29 2007
7555139 Secure documents with hidden signals, and related methods and systems 68 2007
* 2008/0149,713 Detecting Media Areas Likely of Hosting Watermarks 82 2007
* 2008/0130,945 Secure Documents With Hidden Signals, and Related Methods and Systems 9 2007
8391541 Steganographic encoding and detecting for video signals 2 2007
8355514 Audio encoding to convey auxiliary information, and media embodying same 11 2007
7508955 Authentication of objects using steganography 87 2007
* 2008/0170,746 Authentication of Objects Using Steganography 1 2007
* 2008/0131,083 Audio Encoding to Convey Auxiliary Information, and Media Embodying Same 54 2007
* 2008/0131,084 Steganographic Encoding and Detecting for Video Signals 50 2007
7724920 Digital authentication with analog documents 25 2007
* 7620200 Authentication of identification documents 25 2007
* 2008/0159,587 Authentication of Identification Documents 13 2007
7711143 Methods for marking images 104 2007
7697719 Methods for analyzing electronic media including video and audio 113 2007
7532741 Data hiding in media 54 2008
* 2008/0112,590 Data Hiding in Media 0 2008
8126272 Methods combining multiple frames of image data 16 2008
* 2008/0270,801 Watermarking a Media Signal by Adjusting Frequency Domain Values and Adapting to the Media Signal 23 2008
8098882 Perceptability model applied to watermark signals 0 2008
* 2009/0087,018 PERCEPTABILITY MODEL APPLIED TO WATERMARK SIGNALS 0 2008
8023692 Apparatus and methods to process video or audio 10 2008
7773770 Substituting or replacing components in media objects based on steganographic encoding 9 2008
* 2008/0196,059 Substituting or Replacing Components in Media Objects Based on Steganographic Encoding 3 2008
7756290 Detecting embedded signals in media content using coincidence metrics 94 2008
8606715 Systems and methods facilitating communication with remote computers 0 2008
* 2008/0215,636 Systems and Methods Facilitating Communication with Remote Computers 15 2008
8959352 Transmarking of multimedia signals 1 2008
* 2008/0279,536 TRANSMARKING OF MULTIMEDIA SIGNALS 3 2008
7693300 Color image or video processing 90 2008
* 2009/0003,648 Color Image or Video Processing 1 2008
7672477 Detecting hidden auxiliary code signals in media 51 2008
* 2009/0067,672 Embedding Hidden Auxiliary Code Signals in Media 9 2008
7762468 Readers to analyze security features on objects 91 2008
8300274 Process for marking substrates with information using a texture pattern and related substrates 0 2008
* 2009/0080,758 Processes for Encoding Substrates with Information and Related Substrates 0 2008
7747038 Method and apparatus for associating identifiers with content 90 2008
* 2009/0123,026 Method and Apparatus for Associating Identifiers with Content 2 2008
7564992 Content identification through deriving identifiers from video, images and audio 109 2008
* 2009/0060,269 Content Identification Through Deriving Identifiers from Video, Images and Audio 8 2008
7987245 Internet linking from audio 10 2008
7602978 Deriving multiple identifiers from multimedia content 101 2008
* 2009/0080,694 Deriving Multiple Identifiers from Multimedia Content 2 2008
7751588 Error processing of steganographic message signals 94 2008
* 2009/0097,702 Error Processing of Steganographic Message Signals 14 2008
9117268 Out of phase digital watermarking in two chrominance directions 4 2008
* 2010/0150,434 Out of Phase Digital Watermarking in Two Chrominance Directions 54 2008
7751596 Methods and arrangements employing digital content items 120 2009
* 2009/0125,607 Methods and Arrangements Employing Digital Content Items 3 2009
7822226 Perceptual modeling of media signals for data hiding 4 2009
* 2009/0207,920 Perceptual Modeling of Media Signals for Data Hiding 0 2009
7983443 Methods for managing content using intentional degradation and insertion of steganographic codes 3 2009
* 2010/0054,529 Methods for Extracting Identifying Information From Video and Audio Content 21 2009
8316239 Decoding information to allow access to computerized systems 0 2009
8023694 Systems and methods using identifying data derived or extracted from video, audio or images 4 2009
* 2010/0009,714 Decoding Information to Allow Access to Computerized Systems 13 2009
* 2009/0238,403 Systems and Methods Using Identifying Data Derived or Extracted from Video, Audio or Images 7 2009
7953270 Methods and arrangements employing digital content items 40 2009
* 2010/0094,639 METHODS AND ARRANGEMENTS EMPLOYING DIGITAL CONTENT ITEMS 75 2009
8345316 Layered security in digital watermarking 3 2009
7831062 Arrangement of objects in images or graphics to convey a machine-readable signal 44 2009
* 2009/0220,121 Arrangement of Objects in Images or Graphics to Convey a Machine-Readable Signal 3 2009
8051294 Methods for audio watermarking and decoding 4 2009
* 2010/0131,767 Methods for Audio Watermarking and Decoding 51 2009
7957553 Digital watermarking apparatus and methods 21 2009
* 2010/0142,749 Digital Watermarking Apparatus and Methods 67 2009
8000518 Methods, objects and apparatus employing machine readable data 0 2009
8185967 Method and apparatus for content management 7 2009
8009893 Security document carrying machine readable pattern 7 2009
* 2010/0169,984 METHOD AND APPARATUS FOR CONTENT MANAGEMENT 1 2009
* 2010/0163,629 Security Document Carrying Machine Readable Pattern 49 2009
7970167 Deriving identifying data from video and audio 38 2009
* 2009/0290,754 Deriving Identifying Data From Video and Audio 75 2009
8638978 Digital watermarking of low bit rate video 1 2009
8055012 Hiding and detecting messages in media signals 5 2009
* 2010/0128,921 Digital Watermarking of Low Bit Rate Video 4 2009
8103879 Processing audio or video content with multiple watermark layers 6 2009
* 2010/0226,525 Processing Audio or Video Content with Multiple Watermark Layers 48 2009
* 8073193 Methods and systems for steganographic processing 0 2009
7974439 Embedding hidden auxiliary information in media 4 2009
* 2010/0008,537 Embedding Hidden Auxiliary Information in Media 44 2009
* 2010/0008,536 Methods and Systems for Steganographic Processing 47 2009
8036419 Digital watermarks 4 2009
8014562 Signal processing of audio and video data, including deriving identifying information 4 2009
* 2010/0142,752 Signal Processing of Audio and Video Data, including Deriving Identifying Information 48 2009
* 2010/0146,285 Digital Watermarks 46 2009
7961949 Extracting multiple identifiers from audio and video content 25 2009
8051295 Benchmarks for digital watermarking 15 2009
* 2010/0042,843 Benchmarks for Digital Watermarking 26 2009
* 2010/0128,924 Authentication of Identification Documents 12 2009
8199969 Out of phase digital watermarking in two chrominance directions 27 2009
8509474 Digital watermarking methods, apparatus and systems 3 2009
8280101 Identification documents and authentication of such documents 0 2009
8107674 Synchronizing rendering of multimedia content 36 2010
* 2010/0172,540 Synchronizing Rendering of Multimedia Content 105 2010
8116516 Controlling use of audio or image content 7 2010
* 2010/0290,666 Controlling Use of Audio or Image Content 21 2010
8130811 Assessing quality of service using digital watermark information 0 2010
* 2011/0022,937 Assessing Quality of Service Using Digital Watermark Information 1 2010
8515120 Steganographic encoding and decoding 6 2010
* 2010/0322,467 Steganographic Encoding and Decoding 16 2010
8165341 Methods and apparatus to process imagery or audio content 12 2010
* 2010/0226,529 Methods and Apparatus to Process Imagery or Audio Content 1 2010
8095989 Associating first and second watermarks with audio or video content 3 2010
8165342 Color image or video processing 6 2010
8155378 Color image or video processing 11 2010
8010632 Steganographic encoding for video and images 2 2010
* 2010/0318,664 STEGANOGRAPHIC ENCODING FOR VIDEO AND IMAGES 2 2010
* 2010/0310,164 COLOR IMAGE OR VIDEO PROCESSING 3 2010
8023695 Methods for analyzing electronic media including video and audio 8 2010
* 2010/0205,445 WATERMARK SYSTEMS AND METHODS 4 2010
8068679 Audio and video signal processing 3 2010
8170273 Encoding and decoding auxiliary signals 1 2010
8055013 Conveying auxilliary data through digital watermarking 40 2010
* 2010/0322,468 Encoding and Decoding Auxiliary Signals 0 2010
8369363 Wireless methods and devices employing plural-bit data derived from audio information 0 2010
* 2010/0296,526 Wireless Methods and Devices Employing Plural-Bit Data Derived from Audio Information 22 2010
8411898 Digital authentication with analog documents 2 2010
8014563 Methods and systems for steganographic processing 0 2010
8050451 Electronic forms using indicia, sometimes hidden indicia 3 2010
8027509 Digital watermarking in data representing color channels 15 2010
8103053 Method and apparatus for associating identifiers with content 0 2010
* 2010/0260,375 Method and Apparatus for Associating Identifiers with Content 1 2010
8184849 Error processing of steganographic message signals 3 2010
* 2011/0158,468 Error Processing of Steganographic Message Signals 1 2010
8027510 Encoding and decoding media signals 4 2010
* 2011/0007,936 Encoding and Decoding Media Signals 70 2010
8144924 Content objects with computer instructions steganographically encoded therein, and associated methods 1 2010
* 2011/0013,802 Content Objects with Computer Instructions Steganographically Encoded Therein, and Associated Methods 6 2010
8123134 Apparatus to analyze security features on objects 3 2010
8150032 Methods for controlling rendering of images and video 2 2010
* 2011/0051,998 Methods for Controlling Rendering of Images and Video 46 2010
8483426 Digital watermarks 0 2010
8078697 Network linking methods and apparatus 3 2010
* 2011/0066,734 NETWORK LINKING METHODS AND APPARATUS 13 2010
8213674 Perceptual modeling of media signals for data hiding 1 2010
8175329 Authentication of physical and electronic media objects using digital watermarks 1 2010
8515121 Arrangement of objects in images or graphics to convey a machine-readable signal 1 2010
8681980 Recoverable digital content degradation 1 2011
8184851 Inserting watermarks into portions of digital signals 2 2011
8521850 Content containing a steganographically encoded process identifier 2 2011
8190713 Controlling a device based upon steganographically encoded data 3 2011
8391545 Signal processing of audio and video data, including assessment of embedded data 0 2011
8644548 Digital watermarks 0 2011
9179033 Digital watermarking in data representing color channels 10 2011
8543661 Fingerprints and machine-readable codes combined with user characteristics to obtain content or information 2 2011
8763144 Associating first and second watermarks with audio or video content 1 2012
8792675 Color image or video processing 0 2012
8719958 Method and apparatus for content management 0 2012
8660298 Encoding in two chrominance directions 2 2012
9740373 Content sensitive connected content 0 2012
8908908 Steganographic encoding and decoding 4 2013
8913780 Digital watermarking methods, apparatus and systems 3 2013
8983120 Steganographic encoding and decoding 2 2013
8744120 Steganographic encoding and decoding 7 2013
9245308 Encoding in two chrominance directions 3 2014
9282216 Steganographic encoding and decoding 2 2014
9292663 Associating first and second watermarks with audio or video content 0 2014
9412144 Hierarchical watermark detector 0 2014
9185260 Steganographic encoding and decoding 1 2014
9317888 Digital watermarking methods, apparatus and systems 1 2014
* 9401001 Full-color visibility model using CSF which varies spatially with local luminance 4 2015
* 2015/0187,039 FULL-COLOR VISIBILITY MODEL USING CSF WHICH VARIES SPATIALLY WITH LOCAL LUMINANCE 10 2015
9325878 Steganographic encoding and decoding 0 2015
9509882 Steganographic encoding and decoding 0 2015
9582844 Detection from two chrominance directions 0 2016
9607350 Steganographic encoding and decoding 0 2016
9665919 Digital watermarking methods, apparatus and systems 0 2016
* 9565335 Full color visibility model using CSF which varies spatially with local luminance 0 2016
 
L-1 Secure Credentialing (1)
7963449 Tamper evident adhesive and identification document including same 5 2010
* Cited By Examiner