Edward N. Jeffrey

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Garland, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for braking a polyphase DC motor
- Patent number 6,548,973
- Issue date Apr 15, 2003
- Texas Instruments Incorporated
- James E. Chloupek
- G11 - INFORMATION STORAGE
Information Patent Grant
Low distortion audio range class-AB full H-bridge pre-driver amplifier
- Patent number 6,353,298
- Issue date Mar 5, 2002
- Texas Instruments Incorporated
- Edward N. Jeffrey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Converting a pulse-width modulation signal to an analog voltage
- Patent number 6,208,280
- Issue date Mar 27, 2001
- Seagate Technology LLC
- John M. Baker
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method and circuit for driving hard disk drive spindle and actuator...
- Patent number 6,021,015
- Issue date Feb 1, 2000
- Texas Instruments Incorporated
- Edward N. Jeffrey
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system for driving a three-phase motor in a mass storage...
- Patent number 6,008,611
- Issue date Dec 28, 1999
- Texas Instruments Incorporated
- Hao Chen
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system for limiting current in a read/write head retract...
- Patent number 5,808,438
- Issue date Sep 15, 1998
- Texas Instruments Incorporated
- Edward N. Jeffrey
- G11 - INFORMATION STORAGE