Enyuan Tu

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Ephemeris download from weak signals
- Patent number 8,094,758
- Issue date Jan 10, 2012
- Sirf Technology Holdings, Inc.
- Chi-Shin Wang
- G01 - MEASURING TESTING
Information Patent Grant
Ephemeris download from weak signals
- Patent number 7,903,028
- Issue date Mar 8, 2011
- Sirf Technology Holdings, Inc.
- Chi-Shin Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods and systems for acquisition, reacquisiton and tracking of w...
- Patent number 7,477,189
- Issue date Jan 13, 2009
- Sirf Technology Holdings, Inc.
- Chi-Shin Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Ephemeris Download From Weak Signals
- Publication number 20100328145
- Publication date Dec 30, 2010
- Chi-Shin Wang
- G01 - MEASURING TESTING
Information Patent Application
METHODS AND SYSTEMS FOR ACQUISITION, REACQUISITION AND TRACKING OF...
- Publication number 20080180321
- Publication date Jul 31, 2008
- Chi-Shin Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Ephemeris Download From Weak Signals
- Publication number 20080143594
- Publication date Jun 19, 2008
- Chi-Shin Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE