Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340906 | Video signal coding by video signal polarity reversal on the basis of brightness level comparison | Pieter den Toonder, Johannes C. Seltenrijch, Graham S. Stubbs, Pieter J. Fondse | 1982-07-20 |