Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5721730 | Spectral noise compensation for telecommunication signal processing | — | 1998-02-24 |
| 5561668 | Echo canceler with subband attenuation and noise injection control | — | 1996-10-01 |
| 5283784 | Echo canceller processing techniques and processing | — | 1994-02-01 |
| 5157653 | Residual echo elimination with proportionate noise injection | — | 1992-10-20 |
| 4355384 | Non-blocking expandable switching matrix for a telecommunication system | Steven R. Cook | 1982-10-19 |
| 4301534 | Framing circuit for time multiplexed data | — | 1981-11-17 |