Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847821 | Process for searching for a track on a rotating plate-like information support and circuit for performing the process | — | 1989-07-11 |
| 4845698 | Method of skipping tracks while searching for a track and circuitry for carrying out the method | — | 1989-07-04 |
| 4809253 | Focus control through detection of the rate of error in discs with a control signal inversely dependent on the error rate | Arthur Kurz | 1989-02-28 |
| 4803676 | Circuitry for an audio or video disk player | — | 1989-02-07 |
| 4796249 | System to ascertain the scanning speed of audio disks with contactless scanning | — | 1989-01-03 |