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Rolf Heidemann
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Tamm, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Active demarcation point of an access network
Patent number
6,320,878
Issue date
Nov 20, 2001
Alcatel
Heinz Krimmel
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmitting/receiving facility and method for transmitting broadba...
Patent number
6,310,706
Issue date
Oct 30, 2001
Alcatel
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transition from a microstrip line to a waveguide and use of such tr...
Patent number
6,144,266
Issue date
Nov 7, 2000
Alcatel
Rolf Heidemann
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electrical transmission system with a broadband distribution networ...
Patent number
6,078,950
Issue date
Jun 20, 2000
Alcatel N.V.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmitting/receiving facility and method for transmitting broadba...
Patent number
6,026,116
Issue date
Feb 15, 2000
Alcatel
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication system for cable-television signals and for s...
Patent number
5,748,348
Issue date
May 5, 1998
Alcatel N.V.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time-division-multiplexing method and apparatus
Patent number
5,719,874
Issue date
Feb 17, 1998
Alcatel SEL A.G.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus for the optical heterodyne reception of signals
Patent number
5,631,760
Issue date
May 20, 1997
Alcatel N.V.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmitter
Patent number
5,550,667
Issue date
Aug 27, 1996
Alcatel N.V.
Heinz Krimmel
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Fiber-optic amplifier with a device for monitoring the input power
Patent number
5,521,752
Issue date
May 28, 1996
Alcatel N.V.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cable television distribution network with video-on-demand transmis...
Patent number
5,517,232
Issue date
May 14, 1996
Alcatel SEL Aktiengesellschaft
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical amplifier
Patent number
5,499,135
Issue date
Mar 12, 1996
Alcatel N.V.
Rolf Heidemann
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical communication system with monitoring device for avoiding gi...
Patent number
5,475,521
Issue date
Dec 12, 1995
Alcatel SEL Aktiengesellschaft
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Microwave generator circuit having oscillator and controller respon...
Patent number
5,473,286
Issue date
Dec 5, 1995
Alcatel N.V.
Rolf Heidemann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Fiber-optic amplifier as wavelength converter
Patent number
5,453,872
Issue date
Sep 26, 1995
Alcatel N.V.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical coupler and amplifier
Patent number
5,412,746
Issue date
May 2, 1995
Alcatel N.V.
Rolf Rossberg
G02 - OPTICS
Information
Patent Grant
Equalizer for optical communication systems
Patent number
5,378,937
Issue date
Jan 3, 1995
Alcatel N.V.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Fiber-optic amplifier with control of the pump light wavelength
Patent number
5,363,385
Issue date
Nov 8, 1994
Alcatel N.V.
Rolf Heidemann
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical communications system for the subscriber area with optical...
Patent number
5,337,175
Issue date
Aug 9, 1994
Alcatel NV
Horst Ohnsorge
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical receiver with extended dynamic range
Patent number
5,335,109
Issue date
Aug 2, 1994
Alcatel N.V.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communications system employing fiber-optic amplifiers and...
Patent number
5,333,089
Issue date
Jul 26, 1994
Alcatel N.V.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Equalizer for optically transmitted analog information signals
Patent number
5,302,922
Issue date
Apr 12, 1994
Alcatel N.V.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Fiber-optic amplifier with feedback-insensitive pump laser
Patent number
5,297,154
Issue date
Mar 22, 1994
Alcatel SEL A.G.
Rolf Heidemann
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical signal transmission system, particularly optical cable tele...
Patent number
5,291,326
Issue date
Mar 1, 1994
Alcatel N.V.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication system with a fiber optic amplifier
Patent number
5,285,306
Issue date
Feb 8, 1994
Alcatel N.V.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Reflective optical modulator
Patent number
5,253,099
Issue date
Oct 12, 1993
Alcatel N.V.
Rolf Heidemann
G02 - OPTICS
Information
Patent Grant
Radio communication system
Patent number
5,251,053
Issue date
Oct 5, 1993
Alcatel N.V.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication transmission system with optical control of a...
Patent number
5,247,529
Issue date
Sep 21, 1993
Alcatel N.V.
Rolf Heidemann
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Amplifying circuit arrangement with a signal source having a hi-ohm...
Patent number
5,229,599
Issue date
Jul 20, 1993
Alcatel N.V.
Rolf Heidemann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Optical communication system with a fiber-optic amplifier
Patent number
5,170,447
Issue date
Dec 8, 1992
Alcatel N.V.
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Transmitting/receiving facility and method for transmitting broadba...
Publication number
20020030874
Publication date
Mar 14, 2002
Rolf Heidemann
H04 - ELECTRIC COMMUNICATION TECHNIQUE