US Patent 7615974 High dimming ratio LED drive circuit
Patent 7615974 was granted and assigned to National Semiconductor on November, 2009 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
November 8, 2007
0
Date of Patent
November 10, 2009
0
Patent Application Number
11937104
0
Patent Citations Received
Patent Inventor Names
Xiaoru Xu
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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