Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809092 | Improved method and arrangement for recording digital data on a magnetic recording medium by use of binary data signals and magnetic bias signals | — | 1989-02-28 |
| 4803704 | Circuit arrangement for the recognition of impermissable phase errors in a phase locked loop | — | 1989-02-07 |