Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5526425 | Interface circuit between a four wire line and a two wire line | Johan Meyer | 1996-06-11 |
| 4750146 | Method and apparatus for compensating for the truncation error in a filtered signal by adding the error to the positive part of the signal and subtracting the error from the negative part of the signal | Ingemar E. Dalqvist | 1988-06-07 |