Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7664267 | Bit based arithmetic coding using variable size key cipher | Chenggang Duan, Sunil Gupta | 2010-02-16 |
| 7219059 | Automatic pronunciation scoring for language learning | Sunil Gupta, ZiYi Lu | 2007-05-15 |
| 6259388 | Multiplication-free arithmetic coding | — | 2001-07-10 |