Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864650 | Expansion network for increasing the number of subscriber terminations at a passive optical bus system comprising optical mixers | Rudolf Mittelmann | 1989-09-05 |
| 4832434 | Network comprising a multitude of optical signal transmission lines connectible to one another via optical mixers | Anton Sauer, Frank Schmidtke | 1989-05-23 |
| 4809363 | Method for automatic level matching in a local network, in particular a multicomputer arrangement, comprising a bus system having light waveguides, for the purpose of collision recognition | Franz Kurfess | 1989-02-28 |