Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8787409 | Method for discontinuously transferring data in a point-to-multipoint access network, central unit, and network termination unit | — | 2014-07-22 |
| 8213796 | Method as a pre-condition for a gain control, optical access network, central station and terminal | — | 2012-07-03 |
| 7903971 | Method of operating a passive optical network | — | 2011-03-08 |
| 7899328 | Method for operating a massive optical network, optical line termination and transmission frame structure | — | 2011-03-01 |
| 7620319 | Passive optical network monitoring method and passive optical network | — | 2009-11-17 |
| 7280188 | Method for the reflectometric testing of an optical transmission line, optical device and optical transmission and reception device | Harald Schmuck | 2007-10-09 |
| 6320878 | Active demarcation point of an access network | Rainer Fritschi, Rolf Heidemann | 2001-11-20 |
| 6310706 | Transmitting/receiving facility and method for transmitting broadband signals as well as transmitting/receiving facility for receiving broadband signals | Rolf Heidemann | 2001-10-30 |
| 6281996 | Optical network termination unit of a hybrid fiber/coax access network | — | 2001-08-28 |
| 6134035 | Optical network termination unit of a hybrid fiber/coax access network | — | 2000-10-17 |
| 6078950 | Electrical transmission system with a broadband distribution network for TV and audio signals and with interactive service capability | Rolf Heidemann | 2000-06-20 |
| 6026116 | Transmitting/receiving facility and method for transmitting broadband signals as well as transmitting/receiving facility for receiving broadband signals | Rolf Heidemann | 2000-02-15 |
| 6006066 | Transmission system with tap devices which reduce the effects of interference | — | 1999-12-21 |
| 5719874 | Time-division-multiplexing method and apparatus | Rolf Heidemann, Jurgen Otterbach | 1998-02-17 |
| 5550667 | Optical transmitter | Henning Bulow, Rolf Heidemann, Jurgen Otterbach | 1996-08-27 |
| 5517232 | Cable television distribution network with video-on-demand transmission | Rolf Heidemann | 1996-05-14 |
| 5483373 | Optical transmitter for the common transmission of analog signals and digital qam signals | Henning Bulow | 1996-01-09 |
| 5471342 | Fiber optical amplifier having a detector for measuring scattered light at a splice | Bernhard Junginger, Rainer Fritschi | 1995-11-28 |
| 5378937 | Equalizer for optical communication systems | Rolf Heidemann, Bernhard Junginger | 1995-01-03 |
| 5302922 | Equalizer for optically transmitted analog information signals | Rolf Heidemann, Bernhard Junginger | 1994-04-12 |
| 5162937 | Optical cable television transmission system | Rolf Heidemann | 1992-11-10 |
| 5128790 | Optical cable television transmission system | Rolf Heidemann, Berthold Wedding | 1992-07-07 |
| 4957339 | Optical communication system, particularly in the subscriber area | Kurt Fussganger | 1990-09-18 |
| 4931229 | Method and apparatus for protecting a screw extruder producing strand-shaped explosives and propellants | Manfred Muller-Sybrichs, Rolf Schilling, Ulrich Weller | 1990-06-05 |
| 4416545 | Mixer | — | 1983-11-22 |