DR. DUNG HAO NGUYEN, PHARM.D.
Pharmacy at Adams Ave, San Diego, CA

6453181, Sep 17, 2002

Nov 4, 1999

09/434865

Raghu Challa - San Diego CA
Ihab Barghouti - San Diego CA
Dung Nguyen - San Diego CA

Qualcomm, Incorporated - San Diego CA

H04B 700

455574, 455343

A method and apparatus is described for tracking the length of a sleep period within a mobile station using a sleep clock to precisely calibrate portions of the sleep period. The sleep period subdivided into a sequence of sub-periods each of known duration wherein the durations of the sub-periods are not necessarily integer multiples of cycles of the sleep clock. Elapsed time is tracked within each individual sub-period of the sleep period using an integer sleep counter which tracks whole cycles of the sleep clock. Then any remaining fractional portions of the cycles of the sleep mode clock not accounted for by the integer sleep counter are tracked using a fractional sleep counter. The fractional sleep counter accumulates remaining fractional portions of sleep mode cycles from one sub-period to the next. A method and apparatus is also described for estimating frequency drift with a sleep clock signal used during a slotted paging mode of operation of a wireless mobile station. An initial frequency of the sleep clock signal is determined following power-up of the mobile station.

5566049, Oct 15, 1996

Jul 7, 1995

8/499512

Dung J. Nguyen - San Diego CA

AT&T Global Information Solutions Company - Dayton OH

H05K 712, G06F 116, F16M 1300

361685

A system for vertically mounting 3. 5-inch disk drives includes a main disk support bracket, first and second disk retainers, and a center disk support bracket. The system allows independent suspension mounting in any orientation of one, two, three or four disk drives which are isolated from mechanical stresses, vibration and shock.