Chung Chuan Liu

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San Jose, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Quadrature servo pattern disk providing asynchronous digital PES
- Patent number 5,818,659
- Issue date Oct 6, 1998
- International Business Machines Corporation
- Wayne Leung Cheung
- G11 - INFORMATION STORAGE
Information Patent Grant
Asynchronous digital PES demodulation disk drive servo control system
- Patent number 5,774,298
- Issue date Jun 30, 1998
- International Business Machines Corporation
- Wayne Leung Cheung
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo encodement and detection system using tetra-orthogonal servo...
- Patent number 4,490,756
- Issue date Dec 25, 1984
- International Business Machines Corporation
- Martin H. Dost
- G11 - INFORMATION STORAGE