Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644679 | Method and device for preprocessing an acoustic signal upstream of a speech coder | William Navarro | 1997-07-01 |
| 5642465 | Linear prediction speech coding method using spectral energy for quantization mode selection | William Navarro | 1997-06-24 |