Issued Patents All Time
Showing 51–62 of 62 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7106945 | Trick mode using dummy bidirectional predictive pictures | Donald H. Willis | 2006-09-12 |
| 7099561 | User interface and processing system for digital video, audio and ancillary data | Donald H. Willis, Mark Alan Schultz | 2006-08-29 |
| 7024098 | Reverse trick modes on progressive video using special groups of pictures | Donald H. Willis | 2006-04-04 |
| 7020382 | Modifying video by inserting shadow intra pictures | Yongmei Cang | 2006-03-28 |
| 7000152 | Method for tracking defective sectors in re-writable disk media | — | 2006-02-14 |
| 6990287 | Fast motion trick mode using dummy bidirectional predictive pictures | Donald H. Willis | 2006-01-24 |
| 6990147 | Generating a non-progressive dummy bidirectional predictive picture | Donald H. Willis | 2006-01-24 |
| 6873786 | Reverse trick modes on non-progressive video using special groups of pictures | Donald H. Willis | 2005-03-29 |
| 6714721 | Changing a playback speed for video presentation recorded in a non-progressive frame structure format | Jianlei Xie, Mark Alan Schultz | 2004-03-30 |
| 6577809 | User selectable variable trick mode speed | Donald H. Willis | 2003-06-10 |
| 6573941 | Low bit rate compression format conversion for improved resolution | Donald H. Willis | 2003-06-03 |
| 4344171 | Effective error control scheme for satellite communications | Philip S. Yu | 1982-08-10 |