Vu P Nguyen

6359856, Mar 19, 2002

Aug 3, 1998

09/128298

Vu T. Nguyen - Spring TX

Compaq Computer Corporation - Houston TX

G11B 3314

369264

A forced flow of cooling air through a computer housing is created during operation of a specially designed data storage disc drive structure operatively disposed in the housing. The drive, which is illustratively a CD ROM drive, has a bladed carrying structure which supports a compact disc and is rotationally driven with the supported disc. Driven rotation of the bladed carrying structure creates the forced flow of cooling air within the housing without requiring additional space for a separate cooling fan therein. In two illustrated embodiments of the bladed carrying structure the created cooling air flow is generally parallel to the rotational axis of the compact disc, and in a third embodiment of the bladed carrying structure the created cooling air flow is generally transverse to the rotational axis.

6546472, Apr 8, 2003

Dec 29, 2000

09/751165

Lee W. Atkinson - Houston TX
Vu T. Nguyen - San Jose CA
Mark W. Peters - Santa Clara CA

Hewlett-Packard Development Company, L.P. - Houston TX

G06F 1206

711156, 711162, 713320

A computer system supports a fast hibernation operation to save power, while minimizing the amount of time it takes to enter the hibernation mode, and to resume normal operations. The system periodically stores data from system memory to non-volatile memory, such as a hard disk drive, during normal operations when the system is idle. The system includes activity monitors that detect when the data in memory pages is changed. The system periodically sweeps the monitors, and performs save operations to the non-volatile memory. When the system enters hibernation mode, the system determines which memory pages have been changed since the last save operation, and then saves those pages to memory. As an alternative, the system immediately can enter hibernation by supplying power to the memory pages that have not been saved since the last save operation. To implement this, independent switches under the control of the CPU of memory controller selectively turn off power to unsaved memory pages. The system can also implement a fast resume procedure by restoring the memory pages that have the highest priority, and saving the other pages in the background, or as need by the system devices.

6647472, Nov 11, 2003

Feb 14, 2003

10/366925

Lee W. Atkinson - Houston TX
Vu T. Nguyen - San Jose CA
Mark W. Peters - Santa Clara CA

Hewlett-Packard Development Company, L.P. - Houston TX

G06F 1216

711158, 711162

A computer system supports a fast hibernation operation to save power, while minimizing the amount of time it takes to enter the hibernation mode, and to resume normal operations. The system periodically stores data from system memory to non-volatile memory, such as a hard disk drive, during normal operations when the system is idle. The system includes activity monitors that detect when the data in memory pages is changed. The system periodically sweeps the monitors, and performs save operations to the non-volatile memory. When the system enters hibernation mode, the system determines which memory pages have been changed since the last save operation, and then saves those pages to memory. As an alternative, the system immediately can enter hibernation by supplying power to the memory pages that have not been saved since the last save operation. To implement this, independent switches under the control of the CPU of memory controller selectively turn off power to unsaved memory pages. The system can also implement a fast resume procedure by restoring the memory pages that have the highest priority, and saving the other pages in the background, or as need by the system devices.

6657945, Dec 2, 2003

Mar 18, 2002

10/100550

Vu T. Nguyen - Spring TX

Hewlett-Packard Development Company, L.P. - Houston TX

G11B 2300

369264

A forced flow of cooling air through a computer housing is created during operation of a specially designed data storage disc drive structure operatively disposed in the housing. The drive, which is illustratively a CD ROM drive, has a bladed carrying structure which supports a compact disc and is rotationally driven with the supported disc. Driven rotation of the bladed carrying structure creates the forced flow of cooling air within the housing without requiring additional space for a separate cooling fan therein. In two illustrated embodiments of the bladed carrying structure the created cooling air flow is generally parallel to the rotational axis of the compact disc, and in a third embodiment of the bladed carrying structure the created cooling air flow is generally transverse to the rotational axis.

57937400, Aug 11, 1998

Dec 31, 1996

8/775283

Vu T. Nguyen - Spring TX

Compaq Computer Corporation - Houston TX

G11B 360
G11B 3314

369264

A forced flow of cooling air through a computer housing is created during operation of a specially designed CD ROM drive operatively disposed in the housing. The drive has a bladed carrying structure which supports a compact disc and is rotationally driven with the supported disc. Driven rotation of the bladed carrying structure creates the forced flow of cooling air within the housing without requiring additional space for a separate cooling fan therein. In two illustrated embodiments of the bladed carrying structure the created cooling air flow is generally parallel to the rotational axis of the compact disc, and in a third embodiment of the bladed carrying structure the created cooling air flow is generally transverse to the rotational axis.