Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6374215 | Signal processing apparatus based upon selective conversion of audio signal to text signal | Colin Chan | 2002-04-16 |
| 6138096 | Apparatus for speech-based generation, audio translation, and manipulation of text messages over voice lines | Colin Chan | 2000-10-24 |