Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H1884 | System and method for transferring echo cancellation data | Jenny W. Erwin | 2000-10-03 |
| H1885 | Apparatus and method for controlling the operational state of an echo | James M. Davis | 2000-10-03 |
| 5835486 | Multi-channel transcoder rate adapter having low delay and integral echo cancellation | James M. Davis | 1998-11-10 |
| 4807230 | Frame synchronization | Rangarajan Srinivasagopalan | 1989-02-21 |
| 4761784 | Modem and method using multidimensional coded modulation | Rangarajan Srinivasagopalan, Vedavalli G. Krishnan, Luis Farias | 1988-08-02 |