Xuwen Yu

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
RSSI and ultrasonic based hybrid ranging technology
- Patent number 7,710,829
- Issue date May 4, 2010
- Panasonic Corporation
- Qiang Wei
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
RSSI AND ULTRASONIC BASED HYBRID RANGING TECHNOLOGY
- Publication number 20090231958
- Publication date Sep 17, 2009
- PANASONIC CORPORATION
- Qiang Wei
- G01 - MEASURING TESTING
Information Patent Application
Equipment and method for detecting commercial automately
- Publication number 20060221232
- Publication date Oct 5, 2006
- Xuwen Yu
- G06 - COMPUTING CALCULATING COUNTING