Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868686 | Method and system for recording asynchronous biphase encoded data on a video tape recorder and for recovering the encoded recorded data | Bruce E. Busby | 1989-09-19 |
| 4816723 | Variable speed motor control method and apparatus | Michael B. Shields | 1989-03-28 |