Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876596 | Film-to-video converter with scan line doubling | — | 1989-10-24 |
| 4864389 | Comb filter method and apparatus for chrominance and luminance separation in quadrature modulated color subcarrier television systems | Jack J. Campbell | 1989-09-05 |
| 4847681 | Low level television signal transition booster | Jack J. Campbell | 1989-07-11 |
| 4837611 | Wideband NTSC-compatible transmission system with noise reduction processing | — | 1989-06-06 |
| 4831463 | Video processing in which high frequency luminance components are folded into a mid-band spectrum | — | 1989-05-16 |