Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10911869 | Variable-frequency sliding band equalization for controlling sealed loudspeaker excursion | — | 2021-02-02 |
| 7448061 | Frame synchronization in an ethernet NTP time-keeping digital cinema playback system | Martin J. Richards, Makarand Karanjkar, Pierre-Anthony Stivell Lemieux | 2008-11-04 |
| 6211940 | Selecting analog or digital motion picture sound tracks | Charles G. Seagrave, Martin J. Richards, Mark Atherton | 2001-04-03 |
| 5757465 | Storage medium for carrying information encoded in two dimensions | Charles G. Seagrave, Martin J. Richards, Mark Atherton | 1998-05-26 |
| 5710752 | Apparatus using one optical sensor to recover audio information from analog and digital soundtrack carried on motion picture film | Charles G. Seagrave, Martin J. Richards, Mark Atherton | 1998-01-20 |
| 5608805 | Dynamic loader | Martin J. Richards, Mark Atherton, Paul R. Goldberg, Mark F. Davis | 1997-03-04 |
| 5544140 | Storage medium and apparatus and method for recovering information from such medium by oversampling | Charles G. Seagrave, Martin J. Richards, Mark Atherton | 1996-08-06 |
| 5390256 | Dynamic loader | Martin J. Richards, Mark Atherton, Paul R. Goldberg, Mark F. Davis | 1995-02-14 |
| 5347509 | Recovering digital information represented by multi-dimensionally encoded symbols carried by an information storage medium | Paul R. Goldberg, Martin J. Richards | 1994-09-13 |
| 5046098 | Variable matrix decoder with three output channels | Craig C. Todd, Roger Wallace Dressler | 1991-09-03 |
| 4940977 | Adaptive-filter single-bit digital encoder and decoder and adaptation control circuit responsive to bit-stream loading | — | 1990-07-10 |
| 4941177 | Variable matrix decoder | Craig C. Todd, Ioan R. Allen, Mark F. Davis | 1990-07-10 |
| 4829299 | Adaptive-filter single-bit digital encoder and decoder and adaptation control circuit responsive to bit-stream loading | — | 1989-05-09 |
| 4799260 | Variable matrix decoder | Craig C. Todd, Ioan R. Allen, Mark F. Davis | 1989-01-17 |