Wayne L. Cheung

Person

San Jose, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
CMOS low-noise MR read head pre-amplifier circuit
- Patent number 6,870,696
- Issue date Mar 22, 2005
- International Business Machines Corporation
- Wayne L. Cheung
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for providing matched differential MR biasing...
- Patent number 6,847,501
- Issue date Jan 25, 2005
- International Business Machines Corporation
- Wayne Leung Cheung
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive with wide servo burst pattern and wide servo sensing ele...
- Patent number 6,456,449
- Issue date Sep 24, 2002
- International Business Machines Corporation
- Karl Arnold Belser
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-track density direct access storage device
- Patent number 6,393,511
- Issue date May 21, 2002
- International Business Machines Corporation
- David William Albrecht
- G11 - INFORMATION STORAGE
Information Patent Grant
Digital pes demodulation for a disk drive servo control system usin...
- Patent number 6,324,030
- Issue date Nov 27, 2001
- International Business Machines Corporation
- Wayne Leung Cheung
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for optimizing access to coded indicia hierarc...
- Patent number 6,070,225
- Issue date May 30, 2000
- International Business Machines Corporation
- Wayne Cheung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital demodulation of a complementary two-frequency servo PES pat...
- Patent number 6,025,970
- Issue date Feb 15, 2000
- International Business Machines Corporation
- Wayne L. Cheung
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-track density direct access storage device
- Patent number 5,999,351
- Issue date Dec 7, 1999
- International Business Machines Corporation
- David William Albrecht
- G11 - INFORMATION STORAGE
Information Patent Grant
Two frequency servo PES pattern
- Patent number 5,966,264
- Issue date Oct 12, 1999
- International Business Machines Cororation
- Karl Arnold Belser
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive servo sensing gain normalization and linearization
- Patent number 5,825,579
- Issue date Oct 20, 1998
- International Business Machines Corporation
- Wayne Leung Cheung
- G11 - INFORMATION STORAGE
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
Asynchronous position error signal detector employing weighted accu...
- Patent number 5,717,538
- Issue date Feb 10, 1998
- International Business Machines Corporation
- Wayne Leung Cheung
- G11 - INFORMATION STORAGE
Information Patent Grant
Phase-compensated servo pattern and position error-sensing detector
- Patent number 5,615,065
- Issue date Mar 25, 1997
- International Business Machines Corporation
- Wayne L. Cheung
- G11 - INFORMATION STORAGE
Information Patent Grant
Asynchronous track code encodement and detection for disk drive ser...
- Patent number 5,442,498
- Issue date Aug 15, 1995
- International Business Machines Corporation
- Wayne L. Cheung
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for providing matched differential MR biasing...
- Publication number 20040085664
- Publication date May 6, 2004
- International Business Machines Corporation
- Wayne Leung Cheung
- G11 - INFORMATION STORAGE
Information Patent Application
CMOS low-noise MR read head pre-amplifier circuit
- Publication number 20030128450
- Publication date Jul 10, 2003
- International Business Machines.
- Wayne L. Cheung
- G11 - INFORMATION STORAGE

Wayne L. Cheung

Person

Patents Grantslast 30 patents

CMOS low-noise MR read head pre-amplifier circuit

Method and apparatus for providing matched differential MR biasing...

Disk drive with wide servo burst pattern and wide servo sensing ele...

Multi-track density direct access storage device

Digital pes demodulation for a disk drive servo control system usin...

Method and apparatus for optimizing access to coded indicia hierarc...

Digital demodulation of a complementary two-frequency servo PES pat...

Multi-track density direct access storage device

Two frequency servo PES pattern

Disk drive servo sensing gain normalization and linearization

Quadrature servo pattern disk providing asynchronous digital PES

Asynchronous digital PES demodulation disk drive servo control system

Asynchronous position error signal detector employing weighted accu...

Phase-compensated servo pattern and position error-sensing detector

Asynchronous track code encodement and detection for disk drive ser...

Patents Applicationslast 30 patents

Method and apparatus for providing matched differential MR biasing...

CMOS low-noise MR read head pre-amplifier circuit