Martinus P. M. Bierhoff

Person

Eindhoven, NL

People

Patents Grantslast 30 patents

Information Patent Grant
Device for optically scanning information tracks on a plane using t...
- Patent number 6,512,732
- Issue date Jan 28, 2003
- Koninklijke Philips Electronics N.V.
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Laser power supply circuit as well as option recording and/or readi...
- Patent number 5,708,647
- Issue date Jan 13, 1998
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Optoelectronic device and method of manufacturing same with an elec...
- Patent number 5,350,916
- Issue date Sep 27, 1994
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Current amplifier arrangement
- Patent number 5,140,282
- Issue date Aug 18, 1992
- U.S. Philips Corporation
- Job F. P. van Mil
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Radiation-sensitive semiconductor device having a transistor
- Patent number 5,105,249
- Issue date Apr 14, 1992
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Beam focus control system for optical record carrier scanning appar...
- Patent number 5,103,439
- Issue date Apr 7, 1992
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Photosensitive semiconductor device having radiation sensitive diod...
- Patent number 5,099,126
- Issue date Mar 24, 1992
- U.S. Philips Corp.
- Martinus P. M. Bierhoff
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Radiation sensitive semiconductor device for optical reading or wri...
- Patent number 5,097,307
- Issue date Mar 17, 1992
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Record carrier scanning apparatus with feedback control system for...
- Patent number 5,036,506
- Issue date Jul 30, 1991
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Record carrier decoder for multi-track data patterns including erro...
- Patent number 4,999,828
- Issue date Mar 12, 1991
- U.S. Philips Corporation
- Rudy W. J. Pollen
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for reproducing information from an optically readable re...
- Patent number 4,813,031
- Issue date Mar 14, 1989
- U.S. Philips Corp.
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for rapid reproduction of information from a record carrier
- Patent number 4,740,938
- Issue date Apr 26, 1988
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Digital/analog converter having a switchable reference current
- Patent number 4,712,091
- Issue date Dec 8, 1987
- U.S. Philips Corporation
- Franciscus A. C. M. Schoofs
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Apparatus for enabling an autotrack circuit of an optical disc read...
- Patent number 4,697,258
- Issue date Sep 29, 1987
- U.S. Philips Corporation
- Hilde M. A. Overath
- G11 - INFORMATION STORAGE
Information Patent Grant
Signal level detector for compact disc player
- Patent number 4,689,501
- Issue date Aug 25, 1987
- U.S. Philips Corporation
- Franciscus A. C. M. Schoofs
- G11 - INFORMATION STORAGE
Information Patent Grant
Smooth lock-in of servo control when switched on
- Patent number 4,683,561
- Issue date Jul 28, 1987
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for reproducing information from an optically readable re...
- Patent number 4,663,749
- Issue date May 5, 1987
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for producing digital information from a transmission medium
- Patent number 4,637,006
- Issue date Jan 13, 1987
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for reproducing information from an optically readable re...
- Patent number 4,628,497
- Issue date Dec 9, 1986
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for reproducing information from an optically readable re...
- Patent number 4,583,209
- Issue date Apr 15, 1986
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for synchronizing the output frequency of a clock oscilla...
- Patent number 4,568,887
- Issue date Feb 4, 1986
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Apparatus for optically scanning a disc-shaped record carrier
- Patent number 4,482,989
- Issue date Nov 13, 1984
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for optically scanning a disc-shaped record carrier
- Patent number 4,471,477
- Issue date Sep 11, 1984
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical scanning apparatus with focussing system
- Patent number 4,357,696
- Issue date Nov 2, 1982
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical focusing device with two controls
- Patent number 4,354,103
- Issue date Oct 12, 1982
- U.S. Philips Corporation
- Kornelis A. Immink
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for reading a disc-shaped record carrier having a PAL col...
- Patent number 4,236,173
- Issue date Nov 25, 1980
- U.S. Philips Corporation
- Martinus P. M. Bierhoff
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical videodisc read unit with tracking and focussing wobblers
- Patent number 4,193,091
- Issue date Mar 11, 1980
- U.S. Philips Corporation
- Wilhelm J. Kleuters
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective mount for video disc player
- Patent number 4,135,206
- Issue date Jan 16, 1979
- U.S. Philips Corporation
- Wilhelm J. Kleuters
- G11 - INFORMATION STORAGE

Martinus P. M. Bierhoff

Person

Patents Grantslast 30 patents

Device for optically scanning information tracks on a plane using t...

Laser power supply circuit as well as option recording and/or readi...

Optoelectronic device and method of manufacturing same with an elec...

Current amplifier arrangement

Radiation-sensitive semiconductor device having a transistor

Beam focus control system for optical record carrier scanning appar...

Photosensitive semiconductor device having radiation sensitive diod...

Radiation sensitive semiconductor device for optical reading or wri...

Record carrier scanning apparatus with feedback control system for...

Record carrier decoder for multi-track data patterns including erro...

Apparatus for reproducing information from an optically readable re...

Apparatus for rapid reproduction of information from a record carrier

Digital/analog converter having a switchable reference current

Apparatus for enabling an autotrack circuit of an optical disc read...

Signal level detector for compact disc player

Smooth lock-in of servo control when switched on

Apparatus for reproducing information from an optically readable re...

Apparatus for producing digital information from a transmission medium

Apparatus for reproducing information from an optically readable re...

Apparatus for reproducing information from an optically readable re...

Apparatus for synchronizing the output frequency of a clock oscilla...

Apparatus for optically scanning a disc-shaped record carrier

Apparatus for optically scanning a disc-shaped record carrier

Optical scanning apparatus with focussing system

Optical focusing device with two controls

Apparatus for reading a disc-shaped record carrier having a PAL col...

Optical videodisc read unit with tracking and focussing wobblers

Objective mount for video disc player