Issued Patents All Time
Showing 26–50 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9396509 | Closed form non-iterative watermark embedding | Alastair M. Reed | 2016-07-19 |
| 9398210 | Methods and systems for dealing with perspective distortion in connection with smartphone cameras | Ravi K. Sharma | 2016-07-19 |
| 9008192 | Arrangements for increasing detection confidence | Geoffrey B. Rhoads | 2015-04-14 |
| 9008315 | Shared secret arrangements and optical data transfer | John D. Lord | 2015-04-14 |
| 8515121 | Arrangement of objects in images or graphics to convey a machine-readable signal | — | 2013-08-20 |
| 8509472 | Digital watermarking methods, programs and apparatus | Tony F. Rodriguez, Alastair M. Reed | 2013-08-13 |
| 8194917 | Progressive image quality control using watermarking | Jun Tian | 2012-06-05 |
| 8170273 | Encoding and decoding auxiliary signals | Ravi K. Sharma | 2012-05-01 |
| 8098883 | Watermarking of data invariant to distortion | Adnan M. Alattar, Jun Tian | 2012-01-17 |
| 8068636 | Digital watermarking methods, programs and apparatus | Tony F. Rodriguez | 2011-11-29 |
| 8059815 | Transforming data files into logical storage units for auxiliary data through reversible watermarks | Neil E. Lofgren, Burt Perry | 2011-11-15 |
| 8050452 | Quantization-based data embedding in mapped data | Brett A. Bradley | 2011-11-01 |
| 8019116 | Content processing methods using reversible watermarking | Jun Tian | 2011-09-13 |
| 8005259 | Watermarking systems and methods | Kenneth L. Levy, Ravi K. Sharma, Lance Lixin Shen | 2011-08-23 |
| 7986807 | Signal embedding and detection using circular structures in a transform domain of a media signal | Hugh L. Brunk, Ravi K. Sharma | 2011-07-26 |
| 7831062 | Arrangement of objects in images or graphics to convey a machine-readable signal | — | 2010-11-09 |
| 7769202 | Quantization-based data embedding in mapped data | Brett A. Bradley | 2010-08-03 |
| 7706570 | Encoding and decoding auxiliary signals | Ravi K. Sharma | 2010-04-27 |
| 7702125 | Watermarking systems and methods | Kenneth L. Levy, Ravi K. Sharma, Lance Lixin Shen | 2010-04-20 |
| 7599518 | Reversible watermarking using expansion, rate control and iterative embedding | Adnan M. Alattar, Jun Tian | 2009-10-06 |
| 7542587 | Content processing methods using reversible watermarking | Jun Tian, Neil E. Lofgren | 2009-06-02 |
| 7532741 | Data hiding in media | — | 2009-05-12 |
| 7515730 | Progressive image quality control using watermarking | Jun Tian | 2009-04-07 |
| 7489801 | Encoding and decoding signals for digital watermarking | Ravi K. Sharma | 2009-02-10 |
| 7454033 | Quantization-based data hiding employing calibration and locally adaptive quantization | Hugh L. Brunk, Ravi K. Sharma | 2008-11-18 |