Yue Ju Zhang

US Patent:

8467157, Jun 18, 2013

Filed:

Jul 28, 2011

Appl. No.:

13/193507

Inventors:

Yury Gaknoki - San Jose CA, US
Yue Zhang - Mountain View CA, US
Mingming Mao - Saratoga CA, US

Assignee:

Power Integrations, Inc. - San Jose CA

International Classification:

H02M 3/335

US Classification:

361 18, 363 2112, 363 2117

Abstract:

This relates to detecting unwanted couplings between a protected terminal and other terminals in an integrated controller of a power supply. Offset and clamp circuitry may apply a positive or negative offset voltage and clamp current to one or more terminals of the controller. In the event that a terminal having the offset voltage and clamp current is accidentally coupled to the protected terminal, the offset voltage and clamp current may be applied to the protected terminal. The protected terminal may be coupled to a fault detection circuitry operable to detect a fault signal at the protected terminal. The fault detection circuitry of the controller may cause the power supply to shut down in response to a detection of the fault signal at the protected terminal or may cause the power supply to shut down in response to a detection of a predefined threshold number of cycles in which the fault signal is detected.

US Patent:

8504874, Aug 6, 2013

Filed:

Sep 21, 2010

Appl. No.:

12/886566

Inventors:

Moises Goldszmidt - Palo Alto CA, US
Mihai Budiu - Sunnyvale CA, US
Yue Zhang - Sunnyvale CA, US
Michael Pechuk - Sammamish WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 11/00

US Classification:

714 25

Abstract:

In a distributed system a plurality of devices (including computing units, storage and communication units) are monitored by an automated repair service that uses sensors and performs one or more repair actions on computing devices that are found to fail according to repair policies. The repair actions include automated repair actions and non-automated repair actions. The health of the computing devices is recorded in the form of states along with the repair actions that were performed on the computing devices and the times at which the repair actions were performed, and events generated by both sensors and the devices themselves. After some period of the time, the history of states of each device, the events, and the repair actions performed on the computing devices are analyzed to determine the effectiveness of the repair actions. A statistical analysis is performed based on the cost of each repair action and the determined effectiveness of each repair action, and one or more of the policies may be adjusted, as well as determining from the signals and events from the sensors whether the sensors themselves require adjustment.

US Patent:

8643983, Feb 4, 2014

Filed:

May 13, 2013

Appl. No.:

13/893138

Inventors:

Yue Zhang - Mountain View CA, US
Mingming Mao - Saratoga CA, US

Assignee:

Power Integrations, Inc. - San Jose CA

International Classification:

H02H 9/02

US Classification:

361 18

Abstract:

This relates to detecting unwanted couplings between a protected terminal and other terminals in an integrated controller of a power supply. Offset and clamp circuitry may apply a positive or negative offset voltage and clamp current to one or more terminals of the controller. In the event that a terminal having the offset voltage and clamp current is accidentally coupled to the protected terminal, the offset voltage and clamp current may be applied to the protected terminal. The protected terminal may be coupled to a fault detection circuitry operable to detect a fault signal at the protected terminal. The fault detection circuitry of the controller may cause the power supply to shut down in response to a detection of the fault signal at the protected terminal or may cause the power supply to shut down in response to a detection of a predefined threshold number of cycles in which the fault signal is detected.

US Patent:

20090179990, Jul 16, 2009

Filed:

Jan 20, 2007

Appl. No.:

11/656339

Inventors:

Yue Zhang - San Jose CA, US
Wen Hsu - Saratoga CA, US

Assignee:

Qpixel Technology International, Inc. - Cupertino CA

International Classification:

H04N 5/225

US Classification:

3482071, 348E05024

Abstract:

The present invention discloses a novel combination for low cost, stand alone video cameras with surveillance features. In the embodiments, the camera body can be manufactured utilizing inexpensive materials such as press molded plastic, the view finder can be a simple through-hole without a lens, simple indicator lights and buttons can be utilized for programming and status functions, and a removable memory card can be used as primary storage. The video camera can operate on one or more batteries or external power. The video camera can be embedded with surveillance functions offering a variety of programming modes for operating as a security camera. By providing only essential features and features that can be manufactured at low cost, the overall cost of the resulting camera can be kept very low.

US Patent:

20180045579, Feb 15, 2018

Filed:

Aug 15, 2016

Appl. No.:

15/237281

Inventors:

- Redwood Shores CA, US
Frankie Y. Liu - Palo Alto CA, US
Yue Zhang - San Mateo CA, US
Suwen Yang - Mountain View CA, US

Assignee:

Oracle International Corporation - Redwood Shores CA

International Classification:

G01K 7/01
H01L 23/34
H01L 35/12
H01L 35/32

Abstract:

The disclosed embodiments relate to the design of a temperature sensor, which is integrated into a semiconductor chip. This temperature sensor comprises an electro-thermal filter (ETF) integrated onto the semiconductor chip, wherein the ETF comprises: a heater; a thermopile, and a heat-transmission medium that couples the heater to the thermopile, wherein the heat-transmission medium comprises a polysilicon layer sandwiched between silicon dioxide layers. It also comprises a measurement circuit that measures a transfer function through the ETF to determine a temperature reading for the temperature sensor.