Dr. Trinh graduated from the A.T. Still University of Health Sciences/ Kirksville College of Osteopathic Medicine in 1992. He works in New York, NY and specializes in Family Medicine. Dr. Trinh is affiliated with New York Presbyterian Lower Manhattan Hospital.
Name / Title
Company / Classification
Phones & Addresses
Tuyen T. Trinh Director Of Pharmacy, Pharmacist
Walgreen Co Drug Store
13052 Newport Ave, Tustin, CA 92780 (714)5056021
Us Patents
Setting An Operating Bias Current For A Magnetoresistive Head Using Ratio Of Target Voltage And Measured Voltage
Dennis W. Hogg - Laguna Hills CA, US Jonas A. Goode - Lake Forest CA, US Tuyen V. Trinh - Lake Forest CA, US
Assignee:
Western Digital Technologies, Inc. - Lake Forest CA
International Classification:
G11B 5/03
US Classification:
360 66
Abstract:
A method is disclosed for setting an operating bias current for a magnetoresistive (MR) element. A bias current is applied to the MR element, and a voltage across the MR element is measured corresponding to the bias current. The bias current is then adjusted in response to the bias current multiplied by a ratio of a target voltage and the measured voltage. The adjusted bias current is then applied to the MR element. In one embodiment, the bias current is adjusted until the measured voltage substantially equals the target voltage.
Disk Drive Adjusting Head Bias During Servo Synchronization To Compensate For Over/Under Sensitivity
Western Digital Technologies, Inc. - Lake Forest CA
International Classification:
G11B 5/03
US Classification:
360 66, 360 67, 360 46
Abstract:
A disk drive is disclosed comprising a disk including a plurality of servo sectors, a head actuated over the disk, the head for generating a read signal, and a gain control circuit for adjusting a gain of the read signal in response to a gain setting. A bias setting is initialized for the head, and the gain setting for the read signal is initialized. The read signal is processed to detect at least one of the servo sectors, and when at least one of the servo sectors is not detected, the gain setting is adjusted. The read signal is processed with the adjusted gain setting to detect at least one of the servo sectors, and when at least one of the servo sectors is not detected with the adjusted gain setting, the bias setting is adjusted in response to the adjusted gain setting.