Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4916734 | Apparatus for separating dc current and ac current components of a composite signal | Hans-Werner Rudolf | 1990-04-10 |
| 4896351 | Apparatus for separating dc current and ac current components of a composite signal | Hans-Werner Rudolf | 1990-01-23 |
| 4893309 | Digital interface between at least two subscriber line interface circuits and a processing unit | Robert Lechner, Hans-Werner Rudolf, Norbert Wingerath, Christopher C. A. Priest, Nigel P. Dyer +7 more | 1990-01-09 |
| 4881226 | Digital interface of an integrated subscriber line interface circuit | Robert Lechner, Hans-Werner Rudolf, Norbert Wingerath, Christopher C. A. Priest, Nigel P. Dyer +7 more | 1989-11-14 |
| 4858226 | Method for the operation of an interface circuit between a central portion and local portions of a subscriber termination module of a digital time multiplex telecommunications network | Hans-Werner Rudolf, Norbert Wingerath, Robert Lechner | 1989-08-15 |
| 4701947 | Circuit arrangement for suppressing interference signals on the receiving arm of a telephone subscriber line circuit | — | 1987-10-20 |