Chongmei Zhang

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Cupertino, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Light detection circuit for ambient light and proximity sensor
- Patent number 8,097,851
- Issue date Jan 17, 2012
- Eminent Electronic Technology Corp.
- Tom Chang
- G01 - MEASURING TESTING
Information Patent Grant
Light detection circuit for ambient light and proximity sensor
- Patent number 7,960,699
- Issue date Jun 14, 2011
- Eminent Electronic Technology Corp.
- Tom Chang
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
LIGHT DETECTION CIRCUIT FOR AMBIENT LIGHT AND PROXIMITY SENSOR
- Publication number 20110266446
- Publication date Nov 3, 2011
- EMINENT ELECTRONIC TECHNOLOGY CORP.
- Tom Chang
- G01 - MEASURING TESTING
Information Patent Application
Optical touch panel
- Publication number 20100295821
- Publication date Nov 25, 2010
- Tom Chang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Light detection circuit for ambient light and proximity sensor
- Publication number 20100102230
- Publication date Apr 29, 2010
- Tom Chang
- G01 - MEASURING TESTING