Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5737485 | Method and apparatus including microphone arrays and neural networks for speech/speaker recognition systems | Qiguang Lin, Mazin G. Rahim, Chiwei Che | 1998-04-07 |
| 5706392 | Perceptual speech coder and method | Randy G. Goldberg | 1998-01-06 |
| 5666466 | Method and apparatus for speaker recognition using selected spectral information | Qiguang Lin, Ea-Ee Jan | 1997-09-09 |
| 4741038 | Sound location arrangement | Gary W. Elko, James David Johnston | 1988-04-26 |
| 4653606 | Electroacoustic device with broad frequency range directional response | — | 1987-03-31 |
| 4555598 | Teleconferencing acoustic transducer | Robert A. Kubli | 1985-11-26 |
| 4485484 | Directable microphone system | — | 1984-11-27 |
| 4449190 | Silence editing speech processor | James David Johnston | 1984-05-15 |
| 4395593 | Acoustic differential digital coder | — | 1983-07-26 |
| 4374304 | Spectrum division/multiplication communication arrangement for speech signals | — | 1983-02-15 |
| 4228321 | Privacy transmission system with remote key control | — | 1980-10-14 |
| 4189627 | Electroacoustic transducer filter assembly | — | 1980-02-19 |