Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870480 | Subnyquist demodulator as for a television receiver | — | 1989-09-26 |
| 4864403 | Adaptive television ghost cancellation system including filter circuitry with non-integer sample delay | Edward R. Campbell, III, Henry G. Lewis, Jr. | 1989-09-05 |