Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6728585 | Personal on-demand audio entertainment device that is untethered and allows wireless download of content | — | 2004-04-27 |
| 6668204 | Biaural (2channel listening device that is equalized in-stu to compensate for differences between left and right earphone transducers and the ears themselves | — | 2003-12-23 |
| 5909382 | Tablet with system power saving features including reactivation by pencontact after inactive period | — | 1999-06-01 |
| 5568409 | Tablet with system power saving features including reactivation by pen contact after inactive period | — | 1996-10-22 |
| 5359156 | Integrated circuit for digitizer table with dedicated digital signal processor for improved noise immunity | Sang Kong Chan, Maisy Mun Lan Ng | 1994-10-25 |