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Patrick S. Lee
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Campbell, CA, US
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last 30 patents
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Patent Grant
Bang-bang controlled velocity command generator
Patent number
4,638,230
Issue date
Jan 20, 1987
Ampex Corporation
Patrick S. Lee
G05 - CONTROLLING REGULATING
Information
Patent Grant
Cylinder crossing detection circuit for disc drive or the like
Patent number
4,516,178
Issue date
May 7, 1985
Ampex Corporation
Patrick S. Lee
G11 - INFORMATION STORAGE
Information
Patent Grant
Read channel gate generator with self-adjusting pulse width compens...
Patent number
4,398,154
Issue date
Aug 9, 1983
Sperry Corporation
Patrick S. Lee
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Self-adjusting dual mode automatic gain control circuit
Patent number
4,371,842
Issue date
Feb 1, 1983
Sperry Corporation
Patrick S. Lee
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Tachometer for deriving average velocity output by sampling positio...
Patent number
4,329,721
Issue date
May 11, 1982
Sperry Corporation
Patrick S. Lee
G11 - INFORMATION STORAGE
Information
Patent Grant
Current injection tapped delay line spectral shaping equalizer and...
Patent number
4,319,288
Issue date
Mar 9, 1982
Sperry Corporation
Patrick S. K. Lee
G11 - INFORMATION STORAGE
Information
Patent Grant
Power driver control circuit for servo actuator
Patent number
4,300,080
Issue date
Nov 10, 1981
Sperry Corporation
Patrick S. Lee
G11 - INFORMATION STORAGE
Information
Patent Grant
Average value tachometer for a disc drive servo and the like
Patent number
4,288,731
Issue date
Sep 8, 1981
Sperry Corporation
Patrick S. Lee
G01 - MEASURING TESTING
Information
Patent Grant
Balanced tapped delay line spectral shaping differentiation circuit...
Patent number
4,264,935
Issue date
Apr 28, 1981
Sperry Corporation
Patrick S. Lee
G11 - INFORMATION STORAGE