Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6961320 | In-band transmission of TTY/TTD signals for systems employing low bit-rate voice compression | Kumar Swaminathan | 2005-11-01 |
| 6931373 | Prototype waveform phase modeling for a frequency domain interpolative speech codec system | Kumar Swaminathan | 2005-08-16 |
| 4809334 | Method for detection and correction of errors in speech pitch period estimates | — | 1989-02-28 |