David Xiao D. Yang

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for eliminating noises and echo in voice signals
- Patent number 7,620,172
- Issue date Nov 17, 2009
- Vimicro Corporation
- Zhongsong Lin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for transmitting data based on two-dimensional sy...
- Patent number 7,328,848
- Issue date Feb 12, 2008
- Vimicro Corporation
- Yu Xia
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
Method and system for transmitting data based on two-dimensional sy...
- Publication number 20070017996
- Publication date Jan 25, 2007
- Vimicro Corporation
- Yu Xia
- H03 - BASIC ELECTRONIC CIRCUITRY