Yongqing YAN

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Mouse key identification circuit, mouse key identification device a...
- Patent number 9,013,406
- Issue date Apr 21, 2015
- Beijing Sigmachip Co. Lt
- Zhiqian Li
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Motion sensing method of sub-pixel level precision
- Patent number 8,077,925
- Issue date Dec 13, 2011
- Beijing Sigmachip Co., Ltd
- Yongqing Yan
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Mouse Key Identification Circuit, Mouse Key Identification Device a...
- Publication number 20130057474
- Publication date Mar 7, 2013
- BEIJING SIGMACHIP CO. LTD
- Zhiqian LI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MOTION SENSING METHOD OF SUB-PIXEL LEVEL PRECISION
- Publication number 20090324019
- Publication date Dec 31, 2009
- BEIJING SIGMACHIP CO., LTD.
- Yongqing YAN
- G06 - COMPUTING CALCULATING COUNTING