Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5784215 | Method and apparatus for recording and reading variable speed data using a rotating drum device | Tian Chen, Rong-Dzung Tsai | 1998-07-21 |
| 5615018 | Apparatus and a method for variable speed searching of recorded pictures | Tian Chen, Rong-Dzung Tsai | 1997-03-25 |
| 5275351 | Constant tape speed controller | Jing Shen | 1994-01-04 |