Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6266633 | Noise suppression and channel equalization preprocessor for speech and speaker recognizers: method and apparatus | Alan L. Higgins, Jack Porter | 2001-07-24 |
| 4897878 | Noise compensation in speech recognition apparatus | Jack Porter | 1990-01-30 |