Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857928 | Method and arrangement for a sigma delta converter for bandpass signals | William J. Turney, Francis R. Yester, Jr. | 1989-08-15 |
| 4811362 | Low power digital receiver | Francis R. Yester, Jr., William J. Turney | 1989-03-07 |