Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5144569 | Method for filtering digitized signals employing all-pass filters | — | 1992-09-01 |
| 4827443 | Corrective digital filter providing subdivision of a signal into several components of different frequency ranges | Klaus Meerkotter | 1989-05-02 |