Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853788 | Automatic focusing circuit selectively using multiple focus evaluating curves having differing characteristics | Hirotsugu Murashima | 1989-08-01 |
| 4853789 | Automatic focusing circuit using a two period detection interval to compensate for motion occurring within a field of view | Hirotsugu Murashima | 1989-08-01 |
| 4853913 | Pick-up control circuits for disc information reproducing apparatus | — | 1989-08-01 |
| 4841370 | Automatic focusing circuit for automatically matching focus in response to video signal | Hirotsugu Murashima, Shunji Hirano | 1989-06-20 |
| 4812998 | Display terminal control system | — | 1989-03-14 |
| 4805119 | User terminal for videotex | Shigeru Yatou | 1989-02-14 |