Louis F. Schaefer

Person

Palo Alto, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for recording and reading a multiplexed video...
- Patent number 5,604,838
- Issue date Feb 18, 1997
- SamSung Electronics Co., Ltd.
- Louis F. Schaefer
- G11 - INFORMATION STORAGE
Information Patent Grant
Video tape format for providing special effects capabilities
- Patent number 5,557,418
- Issue date Sep 17, 1996
- SamSung Electronics Co., Ltd.
- Louis F. Schaefer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of storing digital video, audio and control information on a...
- Patent number 5,343,458
- Issue date Aug 30, 1994
- Samsung Electronics Co., Ltd.
- Louis F. Schaefer
- G11 - INFORMATION STORAGE
Information Patent Grant
Bidirectional sinusoidal scanning system
- Patent number 5,321,684
- Issue date Jun 14, 1994
- SRI International
- Louis F. Schaefer
- G11 - INFORMATION STORAGE
Information Patent Grant
Multiple variable light source printer
- Patent number 4,791,494
- Issue date Dec 13, 1988
- Savin Corporation
- Louis F. Schaefer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dual beam optical data system
- Patent number 4,730,293
- Issue date Mar 8, 1988
- Drexler Technology Corporation
- Gerald A. Pierce
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for dynamic focusing control of a radiant ener...
- Patent number 4,714,310
- Issue date Dec 22, 1987
- SRI International
- Norman A. Peppers
- G02 - OPTICS
Information Patent Grant
Automatic development electrode bias control system
- Patent number RE31964
- Issue date Aug 6, 1985
- Savin Corporation
- Louis F. Schaefer
- 355 - Photocopying
Information Patent Grant
Apparatus for coding and/or decoding a document
- Patent number 4,480,179
- Issue date Oct 30, 1984
- Esselte Nordia AB
- Louis F. Schaefer
- G07 - CHECKING-DEVICES
Information Patent Grant
Method and apparatus for recording on a disk supported deformable m...
- Patent number 4,410,968
- Issue date Oct 18, 1983
- Siwecki; Thomas Lee
- Hugh F. Frohbach
- G11 - INFORMATION STORAGE
Information Patent Grant
Color television film scanning system using uniform motion and line...
- Patent number 4,310,847
- Issue date Jan 12, 1982
- World Development Laboratories
- Hugh F. Frohbach
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color television encoding and decoding system
- Patent number 4,261,007
- Issue date Apr 7, 1981
- Laser File Inc.
- Hugh F. Frohbach
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electrophotographic liquid developing system
- Patent number RE30477
- Issue date Jan 13, 1981
- Savin Corporation
- Kenneth W. Gardiner
- 118 - Coating apparatus
Information Patent Grant
Disc recording tracking system
- Patent number 4,205,338
- Issue date May 27, 1980
- Laser File Inc.
- Louis F. Schaefer
- G11 - INFORMATION STORAGE
Information Patent Grant
Real-time ultrasonic B-scan imaging and Doppler profile display sys...
- Patent number 4,141,347
- Issue date Feb 27, 1979
- SRI International
- Philip S. Green
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Information recording and reproducing system with plural informatio...
- Patent number 4,006,292
- Issue date Feb 1, 1977
- Sharp Corporation
- Louis F. Schaefer
- G11 - INFORMATION STORAGE
Information Patent Grant
Toner concentration detector
- Patent number 3,999,687
- Issue date Dec 28, 1976
- Savin Business Machines Corporation
- James A. Baer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic liquid developing system
- Patent number 3,981,267
- Issue date Sep 21, 1976
- Savin Business Machines Corporation
- Kenneth W. Gardiner
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Contacting pickup optical reproduction system
- Patent number 3,980,811
- Issue date Sep 14, 1976
- Nihon Denshi Kabushiki Kaisha
- Louis F. Schaefer
- G11 - INFORMATION STORAGE
Information Patent Grant
Toner concentration detector for dry powder magnetic brush toning s...
- Patent number 3,970,036
- Issue date Jul 20, 1976
- Savin Business Machines Corporation
- James A. Baer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for error compensation in multichannel systems
- Patent number 3,959,770
- Issue date May 25, 1976
- Stanford Research Institute
- Louis F. Schaefer
- G01 - MEASURING TESTING
Information Patent Grant
Signal processing system and method
- Patent number 3,959,732
- Issue date May 25, 1976
- Stanford Research Institute
- Louis F. Schaefer
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Ultrasonic camera system and method
- Patent number 3,937,066
- Issue date Feb 10, 1976
- Stanford Research Institute
- Philip S. Green
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Louis F. Schaefer

Person

Patents Grantslast 30 patents

Method and apparatus for recording and reading a multiplexed video...

Video tape format for providing special effects capabilities

Method of storing digital video, audio and control information on a...

Bidirectional sinusoidal scanning system

Multiple variable light source printer

Dual beam optical data system

Method and apparatus for dynamic focusing control of a radiant ener...

Automatic development electrode bias control system

Apparatus for coding and/or decoding a document

Method and apparatus for recording on a disk supported deformable m...

Color television film scanning system using uniform motion and line...

Color television encoding and decoding system

Electrophotographic liquid developing system

Disc recording tracking system

Real-time ultrasonic B-scan imaging and Doppler profile display sys...

Information recording and reproducing system with plural informatio...

Toner concentration detector

Electrophotographic liquid developing system

Contacting pickup optical reproduction system

Toner concentration detector for dry powder magnetic brush toning s...

Method and apparatus for error compensation in multichannel systems

Signal processing system and method

Ultrasonic camera system and method