Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852166 | Analogue scrambling system with dynamic band permutation | — | 1989-07-25 |
| 4817028 | Device for summing of squares | Zdenek Picel | 1989-03-28 |
| 4799179 | Signal analysing and synthesizing filter bank system | Zdenek Picel | 1989-01-17 |