| 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 |
| 4561118 |
Bus system with optical waveguides having collision detection |
Rudolf Mittelmann |
1985-12-24 |
| 4516204 |
Optical passive bus control system |
Anton Sauer |
1985-05-07 |
| 4334308 |
Test facility for error diagnosis in multi-computer systems, particularly in multi-micro-computer systems |
Eduard Scheiterer |
1982-06-08 |
| 4288662 |
Circuit arrangement for telephone exchange systems, especially subscriber extension station installations, with additional data traffic, for example with teleprinter equipment |
Franz Fahrenschon, Alfred Meier |
1981-09-08 |