Zhiqiang Q Chen

US Patent:

8201023, Jun 12, 2012

Filed:

Aug 13, 2010

Appl. No.:

12/856510

Inventors:

Zhiqiang Chen - San Ramon CA, US

Assignee:

Salesforce.com, Inc. - San Francisco CA

International Classification:

G06F 11/00

US Classification:

714 32, 714 381

Abstract:

A method for optimizing tests of a software application. The method includes determining a test run time for each test of a plurality of tests of a software application; and dividing the tests into a plurality of test groups. The method further includes assigning a worker system of a plurality of worker systems to each test group; and causing the worker systems to run the tests.

US Patent:

8510602, Aug 13, 2013

Filed:

Jul 23, 2010

Appl. No.:

12/842988

Inventors:

Zhiqiang Chen - San Ramon CA, US

Assignee:

salesforce.com, inc. - San Francisco CA

International Classification:

G06F 11/00

US Classification:

714 381, 714 25, 717124, 717125, 717126, 717127

Abstract:

A method for testing a software application used in a database system. The method includes receiving multiple changes to the software application, and running a plurality of tests on the software application. The method further includes determining if any of the tests fail, and if any of the tests fail, identifying which changes caused the failures.

US Patent:

8583964, Nov 12, 2013

Filed:

Dec 23, 2010

Appl. No.:

12/977597

Inventors:

Zhiqiang Chen - San Ramon CA, US
Anjesh Dubey - Sunnyvale CA, US
Worley Ortiz - San Francisco CA, US
Mark A. Fischer - Ashland OR, US
Thom Kim - San Francisco CA, US
Andrew Tsui - San Francisco CA, US
Fiaz Hossain - San Francisco CA, US
Pallav Kothari - San Francisco CA, US

Assignee:

salesforce.com, inc. - San Francisco CA

International Classification:

G06F 11/00

US Classification:

714 381, 714 25

Abstract:

A system and method for identifying bugs in a database system. In one embodiment, a method includes running a plurality of tests on a software application, and rerunning one or more tests of the plurality of tests. The method also includes identifying one or more bugs in the one or more tests based on inconsistent test results.

US Patent:

20110176144, Jul 21, 2011

Filed:

Sep 23, 2010

Appl. No.:

12/888414

Inventors:

Zhiqiang Chen - Fremont CA, US

Assignee:

W2 OPTRONICS INC. - Fremont CA

International Classification:

G01B 9/02

US Classification:

356521

Abstract:

This invention provides a compact delay-line interferometer that can be used in Differential Phase Shift Keying (DPSK) and Differential Quardratic Phase Shift Keying (DQPSK) demodulators. The delay-line interferometer is based on polarization components including beam shifter, beam splitter and wave plates. The realized demodulators can be used as either discrete components or integrated with balanced detectors. Time delay generated in the interferometer can be controlled with a phase shifter, using either thermal, piezoelectric, mechanical of electrical means. This application claims priority to US Provisional Patent Application Ser. No. 61/238,687, filed Sep. 1, 2009, titled “Polarization Based Interferometer.” This application also claims priority to US Provisional Patent Application Ser. No. 61/295,766, filed Jan. 18, 2010, titled “Delay-Line-Interferometer for Integration with Balanced Receivers.”

US Patent:

20110176200, Jul 21, 2011

Filed:

Jan 18, 2011

Appl. No.:

13/008031

Inventors:

Zhiqiang Chen - Fremont CA, US

Assignee:

W2 OPTRONICS INC - Fremont CA

International Classification:

G02F 2/00

US Classification:

359325

Abstract:

This invention provides a DPSK demodulator and a DQPSK demodulator. Both of the demodulators are based on polarization delay-line interferometers. They can be integrated with photodetectors in fiber-optic communication systems. The demodulators consist of polarization beam shifter, polarization beam splitter and wave plates. Coupling of the demodulators with photodetectors can be through free space or fibers. Time delay generated in the interferometer can be controlled with a phase shifter, using either thermal, piezoelectric, mechanical or electrical means. Examples of phase shifter using a piezo bender and an actuator respectively are also disclosed.

US Patent:

20110261437, Oct 27, 2011

Filed:

Mar 3, 2011

Appl. No.:

13/039312

Inventors:

Zhiqiang Chen - Fremont CA, US

Assignee:

W WAVE TECHNOLOGIES INC - Fremont CA

International Classification:

G02F 2/00

US Classification:

359325

Abstract:

This invention provides a DPSK demodulator and a DQPSK demodulator. Both of the demodulators are based on polarization delay-line interferometers. They can be integrated with photodetectors in fiber-optic communication systems. The demodulators consist of polarization beam shifter, polarization beam splitter and wave plates. Coupling of the demodulators with photodetectors can be through free space or fibers. Time delay generated in the interferometer can be controlled with a phase shifter, using either thermal, piezoelectric, mechanical or electrical means. Examples of phase shifter using a piezo bender and an actuator respectively are also disclosed.

US Patent:

20170042985, Feb 16, 2017

Filed:

Apr 22, 2015

Appl. No.:

15/305719

Inventors:

- Houston TX, US
Lei ZHOU - Houston TX, US
Peter VANDERSLICE - Houston TX, US
Ke-He RUAN - Bellaire TX, US
Zhiqiang CHEN - Houston TX, US

International Classification:

A61K 38/54
A61K 38/44
A61K 48/00
A61K 38/52

Abstract:

An effective amount of a composition comprising (i) a plasmid having a cyclooxygenase-prostacyclin synthase fusion gene, and (ii) a carrier fluid for use in treating an individual having a vascular disease or at risk of developing a vascular disease. A composition comprising a carrier fluid; and a DNA sequence encoding for a triple catalytic enzyme, a cDNA sequence encoding for a triple catalytic enzyme, a plasmid comprising a DNA sequence encoding for a triple catalytic enzyme, a fusion gene encoding for a triple catalytic enzyme, a cyclooxygenase-prostacyclin synthase fusion gene, or combinations thereof, for use in treating an individual having a vascular disease or at risk of developing a vascular disease.