BEIJING SIGMACHIP CO., LTD.

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Membrane keyboard scan circuit, scan method and keyboard having the...
- Patent number 8,780,048
- Issue date Jul 15, 2014
- Beijing Sigmachip Co., Ltd
- Zhi-Qian Li
- H03 - BASIC ELECTRONIC CIRCUITRY
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
Information Patent Grant
Charge transfer device and method, touch sensing device and method
- Patent number 7,598,752
- Issue date Oct 6, 2009
- Beijing, Sigmachip Co., Ltd.
- Zhiqian Li
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
WIRELESS REMOTE-CONTROL SYSTEM
- Publication number 20140218179
- Publication date Aug 7, 2014
- BEIJING SIGMACHIP CO., LTD.
- Lei JIN
- G08 - SIGNALLING
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
MEMBRANE KEYBOARD SCAN CIRCUIT, SCAN METHOD AND KEYBOARD HAVING THE...
- Publication number 20120262376
- Publication date Oct 18, 2012
- BEIJING SIGMACHIP CO., LTD.
- Zhi-Qian LI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Wireless Mouse Charge Device and Wireless Mouse Charge System
- Publication number 20120176317
- Publication date Jul 12, 2012
- BEIJING SIGMACHIP CO.,LTD.
- Lei JIN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Wireless Mouse Supplier and Wireless Mouse Supply System
- Publication number 20120176316
- Publication date Jul 12, 2012
- BEIJING SIGMACHIP CO.,LTD.
- Lei JIN
- 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
Information Patent Application
NO-DRIVE PHOTOGRAPHING DEVICE AND METHOD
- Publication number 20090128656
- Publication date May 21, 2009
- BEIJING SIGMACHIP CO., LTD.
- Haijun YANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

BEIJING SIGMACHIP CO., LTD.

Organization

Patents Grantslast 30 patents

Membrane keyboard scan circuit, scan method and keyboard having the...

Motion sensing method of sub-pixel level precision

Charge transfer device and method, touch sensing device and method

Patents Applicationslast 30 patents

WIRELESS REMOTE-CONTROL SYSTEM

Mouse Key Identification Circuit, Mouse Key Identification Device a...

MEMBRANE KEYBOARD SCAN CIRCUIT, SCAN METHOD AND KEYBOARD HAVING THE...

Wireless Mouse Charge Device and Wireless Mouse Charge System

Wireless Mouse Supplier and Wireless Mouse Supply System

MOTION SENSING METHOD OF SUB-PIXEL LEVEL PRECISION

NO-DRIVE PHOTOGRAPHING DEVICE AND METHOD

Trademarklast 30 trademarks