Search

Chongmei Zhang

from Morgan Hill, CA
Age ~55
Get Report
Connected to:
Aimei Zhang, 44Aining Zhang, 30Aiqing Zhang, 50Alexia Y Zhang, 36Amy X Zhang, 57Angelina Zhang, 54Ashley C Zhang, 60Baomin Zhang, 55Beilei Zhang, 45Carl Zhang, 33

Chongmei Zhang Phones & Addresses

  • Morgan Hill, CA
  • Campbell, CA
  • Cupertino, CA

Work

Company: Advanced micro devices, inc - Markham, ON Apr 2012 Position: Analog design engineer

Education

School / High School: San Jose State University Dec 2007 Specialities: MS in Electrical Engineering

Resumes

Resumes

Chongmei Zhang Photo 1

Chongmei Zhang Morgan Hill, CA

View page
Work:
Advanced Micro Devices, Inc
Markham, ON
Apr 2012 to Jun 2013
Analog design engineer
Eminent Technologies International
Santa Clara, CA
Dec 2010 to Dec 2011
R&D Engineer
API Technology, Inc

Jul 2007 to Nov 2010
Analog/Mixed signal Design Engineer
Jinan N0.2 Machine-tool Group
Jinan, CN
Jul 1990 to Dec 2002
Electrical Design Engineer
Education:
San Jose State University
Dec 2007
MS in Electrical Engineering
Beijing Institute of Technology
Jul 1990
BS

Publications

Us Patents

Light Detection Circuit For Ambient Light And Proximity Sensor

View page
US Patent:
8097851, Jan 17, 2012
Filed:
May 27, 2011
Appl. No.:
13/117978
Inventors:
Tom Chang - Los Alto CA, US
Andrew Grzegorek - San Jose CA, US
Chongmei Zhang - Cupertino CA, US
Assignee:
Eminent Electronic Technology Corp. - Hsinchu
International Classification:
G01J 5/20
US Classification:
2503384
Abstract:
A circuit for implementing an ambient light sensing mode and a proximity sensing mode includes a light sensor, a light source, and a controller coupled to the light sensor and the light source. The controller is configured to process outputs from the light sensor before and after the light source is energized to obtain an ambient light level output and to compare the ambient light level output with an output from the light sensor when the light source is energized to implement the proximity sensing mode.

Light Detection Circuit For Ambient Light And Proximity Sensor

View page
US Patent:
20100102230, Apr 29, 2010
Filed:
Oct 22, 2009
Appl. No.:
12/589360
Inventors:
Tom Chang - Los Alto CA, US
Andrew Grzegorek - San Jose CA, US
Chongmei Zhang - Cupertino CA, US
John Canfield - Union City CA, US
International Classification:
H01L 27/14
G01J 5/10
G01J 5/02
H05B 37/02
G01J 1/44
US Classification:
2503384, 2503381, 250349, 250214 AL, 250214 C
Abstract:
A circuit for implementing an ambient light sensing mode and a proximity sensing mode includes a first light sensor that is more sensitive to light in the infrared spectrum than to light in the visible spectrum and a light source that emits light in the infrared spectrum. The circuit further includes a second light sensor that is sensitive to light in the visible spectrum and a controller coupled to the first light sensor, the light source, and the second light sensor. The controller is configured to process an ambient light level output from the first light sensor without the light source energized with an output from the first light sensor with the light source energized to implement a proximity sensing mode. Further, the controller is configured to process an output from the second light sensor to implement an ambient light sensing mode.

Optical Touch Panel

View page
US Patent:
20100295821, Nov 25, 2010
Filed:
Nov 19, 2009
Appl. No.:
12/592109
Inventors:
Tom Chang - Los Alto CA, US
Andrew Grzegorek - San Jose CA, US
Chongmei Zhang - Cupertino CA, US
John Canfield - Union City CA, US
International Classification:
G06F 3/042
US Classification:
345175
Abstract:
An optical touch panel assembly includes a touch panel that has photosensors and light sources, wherein each light source is energizable to produce a field of illumination that illuminates multiple photosensors at a time. The touch panel also includes control circuitry to energize and de-energize the light sources so that at least one but less than all of the light sources are turned on at a time in a sequence to illuminate an entire active area of the touch panel and to analyze output signals from the photosensors. The control circuitry is further configured to identify a low level output signal corresponding to a proximity event and to determine a location of the proximity event on the touch panel.
Control profile
Chongmei Zhang from Morgan Hill, CA, age ~55 Get Report