Issued Patents All Time
Showing 551–575 of 607 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6429415 | Wide field imaging through turbulent media | — | 2002-08-06 |
| 6427020 | Methods and devices for recognizing banknotes and responding accordingly | — | 2002-07-30 |
| 6424725 | Determining transformations of media signals with embedded code signals | Ravi K. Sharma | 2002-07-23 |
| 6421070 | Smart images and image bookmarking for an internet browser | Daniel O. Ramos, Brian T. MacIntosh | 2002-07-16 |
| 6411725 | Watermark enabled video objects | — | 2002-06-25 |
| 6408331 | Computer linking methods using encoded graphics | — | 2002-06-18 |
| 6408082 | Watermark detection using a fourier mellin transform | Ravi K. Sharma | 2002-06-18 |
| 6404898 | Method and system for encoding image and audio content | — | 2002-06-11 |
| 6400827 | Methods for hiding in-band digital data in images and video | — | 2002-06-04 |
| 6389151 | Printing and validation of self validating security documents | Jonathan Scott Carr, Burt Perry | 2002-05-14 |
| 6385329 | Wavelet domain watermarks | Ravi K. Sharma, Adnan M. Alattar, Farid Ahmed | 2002-05-07 |
| 6381341 | Watermark encoding method exploiting biases inherent in original signal | — | 2002-04-30 |
| 6373043 | High resolution imaging instrument having a matrix decomposition system | — | 2002-04-16 |
| 6363159 | Consumer audio appliance responsive to watermark data | — | 2002-03-26 |
| 6353672 | Steganography using dynamic codes | — | 2002-03-05 |
| 6345104 | Digital watermarks and methods for security documents | — | 2002-02-05 |
| 6344640 | Method for wide field distortion-compensated imaging | — | 2002-02-05 |
| 6343138 | Security documents with hidden digital data | — | 2002-01-29 |
| 6332031 | Multiple watermarking techniques for documents and other data | Ammon E. Gustafson | 2001-12-18 |
| 6330335 | Audio steganography | — | 2001-12-11 |
| 6324573 | Linking of computers using information steganographically embedded in data objects | — | 2001-11-27 |
| 6320680 | Stochastic scanning documents to change moire effects | — | 2001-11-20 |
| 6311214 | Linking of computers based on optical sensing of digital data | — | 2001-10-30 |
| 6307949 | Methods for optimizing watermark detection | — | 2001-10-23 |
| 6289108 | Methods for detecting alteration of audio and images | — | 2001-09-11 |