| 5,768,426 Graphics processing system employing embedded code signals
|
459 |
1994
|
| 5,850,481 Steganographic system
|
252 |
1995
|
| 5,748,763 Image steganography system featuring perceptually adaptive and globally scalable signal embedding
|
311 |
1995
|
| 5,748,783 Method and apparatus for robust information coding
|
394 |
1995
|
| 5,710,834 Method and apparatus responsive to a code signal conveyed through a graphic image
|
258 |
1995
|
| 5,636,292 Steganography methods employing embedded calibration data
|
584 |
1995
|
| 5,832,119 Methods for controlling systems using control signals embedded in empirical data
|
347 |
1995
|
| 5,745,604 Identification/authentication system using robust, distributed coding
|
262 |
1996
|
| 5,822,436 Photographic products and methods employing embedded information
|
285 |
1996
|
| 5,862,260 Methods for surveying dissemination of proprietary empirical data
|
594 |
1996
|
| 6,122,403 Computer system linked by using information in data objects
|
572 |
1996
|
| 5,841,886 Security system for photographic identification
|
266 |
1996
|
| 6,026,193 Video steganography
|
137 |
1997
|
| 6,122,392 Signal processing to hide plural-bit information in image, video, and audio data
|
103 |
1997
|
| 6,111,954 Steganographic methods and media for photography
|
51 |
1998
|
| 7,171,016 Method for monitoring internet dissemination of image, video and/or audio files
|
116 |
1998
|
| 6,580,819 Methods of producing security documents having digitally encoded data and documents employing same
|
92 |
1999
|
| 6,404,898 Method and system for encoding image and audio content
|
116 |
1999
|
| 6,496,591 Video copy-control with plural embedded signals
|
68 |
1999
|
| 6,400,827 Methods for hiding in-band digital data in images and video
|
83 |
1999
|
| 6,700,990 Digital watermark decoding method
|
127 |
1999
|
| 6,587,821 Methods for decoding watermark data from audio, and controlling audio devices in accordance therewith
|
81 |
1999
|
| 6,381,341 Watermark encoding method exploiting biases inherent in original signal
|
126 |
1999
|
| 6,363,159 Consumer audio appliance responsive to watermark data
|
107 |
1999
|
| 6,408,082 Watermark detection using a fourier mellin transform
|
173 |
1999
|
| 6,560,349 Audio monitoring using steganographic information
|
88 |
1999
|
| 6,330,335 Audio steganography
|
151 |
2000
|
| 6,625,297 Self-orienting watermarks
|
39 |
2000
|
| 6,614,914 Watermark embedder and reader
|
411 |
2000
|
| 6,965,682 Data transmission by watermark proxy
|
53 |
2000
|
| 6,611,607 Integrating digital watermarks in multimedia content
|
205 |
2000
|
| 6,775,392 Computer system linked by using information in data objects
|
124 |
2000
|
| 6,567,533 Method and apparatus for discerning image distortion by reference to encoded marker signals
|
112 |
2000
|
| 6,553,129 Computer system linked by using information in data objects
|
172 |
2000
|
| 6,424,725 Determining transformations of media signals with embedded code signals
|
134 |
2000
|
| 6,788,800 Authenticating objects using embedded data
|
89 |
2000
|
| 6,542,620 Signal processing to hide plural-bit information in image, video, and audio data
|
95 |
2000
|
| 6,438,231 Emulsion film media employing steganography
|
36 |
2000
|
| 6,430,302 Steganographically encoding a first image in accordance with a second image
|
105 |
2001
|
| 6,760,463 Watermarking methods and media
|
106 |
2001
|
| 6,829,368 Establishing and interacting with on-line media collections using identifiers in media signals
|
189 |
2001
|
| 6,675,146 Audio steganography
|
91 |
2001
|
| 6,751,320 Method and system for preventing reproduction of professional photographs
|
34 |
2001
|
| 6,721,440 Low visibility watermarks using an out-of-phase color
|
103 |
2001
|
| 6,959,386 Hiding encrypted messages in information carriers
|
54 |
2001
|
| 6,744,906 Methods and systems using multiple watermarks
|
62 |
2001
|
| 6,728,390 Methods and systems using multiple watermarks
|
73 |
2001
|
| 6,968,057 Emulsion products and imagery employing steganography
|
43 |
2002
|
| 7,054,463 Data encoding using frail watermarks
|
56 |
2002
|
| 6,850,626 Methods employing multiple watermarks
|
49 |
2002
|
| 6,804,376 Equipment employing watermark-based authentication function
|
41 |
2002
|
| 6,804,377 Detecting information hidden out-of-phase in color channels
|
44 |
2002
|
| 6,917,724 Methods for opening file on computer via optical sensing
|
125 |
2002
|
| 6,694,042 Methods for determining contents of media
|
104 |
2002
|
| 6,567,780 Audio with hidden in-band digital data
|
59 |
2002
|
| 6,922,480 Methods for encoding security documents
|
22 |
2002
|
| 6,718,047 Watermark embedder and reader
|
113 |
2002
|
| 6,768,809 Digital watermark screening and detection strategies
|
100 |
2003
|
| 7,003,132 Embedding hidden auxiliary code signals in media
|
55 |
2003
|
| 6,917,691 Substituting information based on watermark-enable linking
|
22 |
2003
|
| 6,987,862 Video steganography
|
99 |
2003
|
| 6,975,746 Integrating digital watermarks in multimedia content
|
97 |
2003
|
| 6,993,153 Self-orienting watermarks
|
6 |
2003
|
| RE40919 Methods for surveying dissemination of proprietary empirical data
|
67 |
2004
|
| 7,027,614 Hiding information to reduce or offset perceptible artifacts
|
82 |
2004
|
| 7,486,799 Methods for monitoring audio and images on the internet
|
94 |
2007
|
| 7,362,879 Substituting objects based on steganographic encoding
|
20 |
2007
|
| 7,773,770 Substituting or replacing components in media objects based on steganographic encoding
|
5 |
2008
|