John L. Grimsley

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Los Altos, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Processing of disc-drive pickup signals
- Patent number 6,167,011
- Issue date Dec 26, 2000
- Oak Technology, Inc.
- Kai C. K. Sun
- G11 - INFORMATION STORAGE
Information Patent Grant
Runout calibration for disc drive system
- Patent number 6,137,753
- Issue date Oct 24, 2000
- Oak Technology, Inc.
- John L. Grimsley
- G11 - INFORMATION STORAGE
Information Patent Grant
Dynamic adjustment of disk-drive pickup signals
- Patent number 6,041,028
- Issue date Mar 21, 2000
- Oak Technology, Inc.
- Thomas A. Quan
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk motor servo and method for closed loop speed control
- Patent number 5,870,363
- Issue date Feb 9, 1999
- Oak Technology, Inc.
- Kai C. K. Sun
- G11 - INFORMATION STORAGE
Information Patent Grant
Voice coil motor with linearized force constant
- Patent number 4,908,816
- Issue date Mar 13, 1990
- Laserdrive Limited
- Patrick J. Champagne
- G11 - INFORMATION STORAGE
Information Patent Grant
Head positioning servo-mechanism with error reduction capabilities
- Patent number 4,879,612
- Issue date Nov 7, 1989
- Data Technology Corporation
- Robin J. Freeze
- G11 - INFORMATION STORAGE