Issued Patents All Time
Showing 51–75 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6026116 | Transmitting/receiving facility and method for transmitting broadband signals as well as transmitting/receiving facility for receiving broadband signals | Heinz Krimmel | 2000-02-15 |
| 5748348 | Optical communication system for cable-television signals and for subscriber-assigned signals | Gustav Veith, Jurgen Otterbach | 1998-05-05 |
| 5719874 | Time-division-multiplexing method and apparatus | Heinz Krimmel, Jurgen Otterbach | 1998-02-17 |
| 5631760 | Apparatus for the optical heterodyne reception of signals | — | 1997-05-20 |
| 5550667 | Optical transmitter | Heinz Krimmel, Henning Bulow, Jurgen Otterbach | 1996-08-27 |
| 5521752 | Fiber-optic amplifier with a device for monitoring the input power | Bernhard Junginger | 1996-05-28 |
| 5517232 | Cable television distribution network with video-on-demand transmission | Heinz Krimmel | 1996-05-14 |
| 5499135 | Optical amplifier | Thomas Pfeiffer, Manfred Kaiser | 1996-03-12 |
| 5475521 | Optical communication system with monitoring device for avoiding giant pluses | — | 1995-12-12 |
| 5473286 | Microwave generator circuit having oscillator and controller responsive to separate wavelengths | — | 1995-12-05 |
| 5453872 | Fiber-optic amplifier as wavelength converter | Henning Bulow, Thomas Pfeiffer | 1995-09-26 |
| 5412746 | Optical coupler and amplifier | Rolf Rossberg, Rainer Fritschi, Jurgen Otterbach | 1995-05-02 |
| 5378937 | Equalizer for optical communication systems | Heinz Krimmel, Bernhard Junginger | 1995-01-03 |
| 5363385 | Fiber-optic amplifier with control of the pump light wavelength | — | 1994-11-08 |
| 5337175 | Optical communications system for the subscriber area with optical amplifiers | Horst Ohnsorge, Adolf Weygang | 1994-08-09 |
| 5335109 | Optical receiver with extended dynamic range | — | 1994-08-02 |
| 5333089 | Optical communications system employing fiber-optic amplifiers and control of the transmitter wavelength | — | 1994-07-26 |
| 5302922 | Equalizer for optically transmitted analog information signals | Heinz Krimmel, Bernhard Junginger | 1994-04-12 |
| 5297154 | Fiber-optic amplifier with feedback-insensitive pump laser | Jurgen Otterbach | 1994-03-22 |
| 5291326 | Optical signal transmission system, particularly optical cable television system, with monitoring and service-channel facilities | — | 1994-03-01 |
| 5285306 | Optical communication system with a fiber optic amplifier | — | 1994-02-08 |
| 5253099 | Reflective optical modulator | — | 1993-10-12 |
| 5251053 | Radio communication system | — | 1993-10-05 |
| 5247529 | Optical communication transmission system with optical control of an optical amplifier | — | 1993-09-21 |
| 5229599 | Amplifying circuit arrangement with a signal source having a hi-ohmic output impedance | Klaus Braun | 1993-07-20 |