Issued Patents All Time
Showing 51–66 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6212247 | Method and apparatus for generating a programmable synchronization signal for a data communication system | — | 2001-04-03 |
| 6192087 | Method and apparatus for spectral shaping in signal-point limited transmission systems | Zhenyu Zhou, Xuming Zhang | 2001-02-20 |
| 6163570 | Methods and apparatus for verifying transmit power levels in a signal point limited transmission system | — | 2000-12-19 |
| 6081555 | Methods and apparatus for implementing shell mapping techniques in the context of a PCM-based modem communications system | — | 2000-06-27 |
| 6081567 | Method and apparatus for synchronizing a data communication system to a periodic digital impairment | — | 2000-06-27 |
| 6067326 | 4 x 4 dimensional block modulation code for a PAM-5 constellation | Olafur Jonsson, Sandeep Rajpal, Ramin Nobakht | 2000-05-23 |
| 6023493 | Method and apparatus for synchronizing a data communication system to a periodic digital impairment | — | 2000-02-08 |
| 5970100 | System for controlling and shaping the spectrum and redundancy of signal-point limited transmission | Zhenyu Zhou, Xuming Zhang | 1999-10-19 |
| 5949819 | Method and apparatus for training linear equalizers in a PCM modem | Elias Bjarnason, Olafur Jonsson | 1999-09-07 |
| 5914982 | Method and apparatus for training linear equalizers in a PCM modem | Elias Bjarnason, Olafur Jonsson | 1999-06-22 |
| 5910959 | Control channel for modems | Sandeep Rajpal | 1999-06-08 |
| 5870438 | Fast resynchronization system for high-speed data transmission | — | 1999-02-09 |
| 5768309 | Unified trellis encoder | — | 1998-06-16 |
| 5742679 | Optimized simultaneous audio and data transmission using QADM with phase randomization | — | 1998-04-21 |
| 5550862 | Method and apparatus for centering equalizer taps | — | 1996-08-27 |
| 5454015 | Adaptive timing recovery with gain adjustment | — | 1995-09-26 |