Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845697 | Method of time limited searching for a track address on an optically read information disc | — | 1989-07-04 |
| 4797752 | Information storage carrier and method for storing duplicate information | — | 1989-01-10 |
| 4796098 | Banded and interleaved video disc format with duplicate information stored at different disc locations | — | 1989-01-03 |
| 4774699 | Method and apparatus for positioning a read head to a selected track on a record disc | — | 1988-09-27 |
| 4751692 | Method and apparatus for recovering information from a videodisc | — | 1988-06-14 |
| 4727532 | Method and apparatus for recovering information from a videodisc | — | 1988-02-23 |
| 4706133 | Method and apparatus for recovering information from a videodisc | — | 1987-11-10 |
| 4701898 | Method and apparatus for locating a selected track on a record disc | — | 1987-10-20 |
| 4536863 | Method and apparatus for recovering information from a videodisc | — | 1985-08-20 |
| 4519004 | Extended play videodisc | Richard L. Wilkinson | 1985-05-21 |
| 4445144 | Method for detecting eccentricity in a video disc and in a video disc player | — | 1984-04-24 |