DAVID NGUYEN, O.D.
Optometry in Cupertino, CA

8259472, Sep 4, 2012

Apr 13, 2011

13/086290

Yong Li - San Jose CA, US
Fuqiang Shi - Cupertino CA, US
Xiaolin Gao - Santa Clara CA, US
David Nguyen - Santa Clara CA, US

iWatt Inc. - Campbell CA

H02M 3/335, H02M 3/338

363 2112, 363 2113, 363 46, 363 75

A switch controller is disclosed that adaptively controls the operating frequency of a switching power converter in order to improve one-time load response and repetitive dynamic load responses. During a transition from a high load to low load condition, the switch controller clamps the operating frequency of the switching power converter at an intermediate frequency for a period of time before allowing the operating frequency to return to a frequency associated with the low load condition. The clamped frequency is higher than the frequency associated with the low load condition thereby allowing improved response to a subsequent load change to a high load condition. Thus, the system improves dynamic load response without compromising no-load power consumption.

2013012, May 16, 2013

Oct 25, 2012

13/660950

Yong Li - San Jose CA, US
John William Kesterson - Seaside CA, US
David Nguyen - Santa Clara CA, US

iWatt Inc. - Campbell CA

H02M 3/335

363 16

A controller of a switching power converter employs a dynamically adaptive power supply regulation approach that improves low-load and no-load regulation to achieve ultra-low standby power in a switching power converter. Under ultra-low load conditions when a deep-deep pulse width modulation (DDPWM) is applied, the controller decreases the actual on-time of the power switch of the switching power converter by decreasing the “on” duration of the control signal used to turn on or off the power switch, until the “on” duration of the control signal reaches a minimum value. To further reduce the on-time of the power switch, the controller reduces the power applied to the power switch to turn on the switch more slowly, while maintaining the “on” duration of the control signal at a minimum value. The minimum value of the “on” duration of the control signal and the minimum power applied to the switch are dynamically controlled.

RE44019, Feb 19, 2013

Oct 23, 2009

12/605303

Thomas F. Fox - Palo Alto CA, US
Sayeh Khalili - San Jose CA, US
Belgacem Haba - Saratoga CA, US
David Nguyen - Cupertino CA, US
Richard Warmke - Truckee CA, US
Xingchao Yuan - Palo Alto CA, US

Rambus Inc. - Sunnyvale CA

H01L 21/00

438108, 438109, 438124, 257E21503

The semiconductor module is provided that includes a semiconductor housing and a plurality of integrated circuit dice positioned within the housing. The semiconductor module also includes a programmable memory device positioned within the housing and electrically coupled to the plurality of integrated circuit dice. The programmable memory device is programmable to identify the integrated circuit dice that meet a predetermined standard, such as an operating frequency requirement, or a core timing grade. Further, a method is provided for accessing a semiconductor module. The above mentioned housing is provided to enclose the plurality of integrated circuit dice and the programmable memory device. The integrated circuit dice of the plurality of integrated circuit dice that meet a predetermined standard are then identified. The programmable memory device is subsequently programmed to identify the selected integrated circuit dice.

2011005, Mar 3, 2011

Dec 9, 2009

12/634441

Tung M. NGUYEN - Cupertino CA, US
Richard AU - Woodside CA, US
David NGUYEN - Santa Clara CA, US
Tipatat CHENNAVASIN - Menlo Park CA, US
Najaf RIZVI - Pleasanton CA, US
David Bradley - Redwood City CA, US
Matthew HUMPHREYS - San Jose CA, US

G06F 9/46

718104

A multi-node computer system, comprising: a plurality of nodes, a system control unit and a carrier board. Each node of the plurality of nodes comprises a processor and a memory. The system control unit is responsible for: power management, cooling, workload provisioning, native storage servicing, and I/O. The carrier board comprises a system fabric and a plurality of electrical connections. The electrical connections provide the plurality of nodes with power, management controls, system connectivity between the system control unit and the plurality of nodes, and an external network connection to a user infrastructure. The system control unit and the carrier board provide integrated, shared resources for the plurality of nodes. The multi-node computer system is provided in a single enclosure.

7457117, Nov 25, 2008

Aug 16, 2006

11/505572

David Nguyen - Cupertino CA, US

Rambus Inc. - Los Altos CA

H05K 7/20

361698, 361699, 324760, 62 33

The system for controlling the temperature of electronic devices under test includes a housing, a seal, a heat-exchanger within the housing, and a Peltier module within the housing. The housing is configured to removably enclose an electronic device coupled to a platform. The seal is configured to be positioned between the housing and the platform. The Peltier module is configured to transfer heat from the heat-exchanger to the electronic device. In use a controller measures the temperature of the electronic device and controls the Peltier module to transfer heat towards or away from the electronic device.