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Chengdu, CN
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last 30 patents
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Patent Grant
Method for GPS positioning in a weak signal environment
Patent number
7,710,317
Issue date
May 4, 2010
O2Micro International Ltd.
MingQiang Cheng
G01 - MEASURING TESTING
Patents Applications
last 30 patents
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Patent Application
Method for GPS positioning in a weak signal environment
Publication number
20070183486
Publication date
Aug 9, 2007
MingQiang Cheng
G01 - MEASURING TESTING