Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenichi Minobe0
Date of Patent
September 1, 2009
0Patent Application Number
119027000
Date Filed
September 25, 2007
0Patent Primary Examiner
Patent abstract
An analog-to-digital converter conventionally performing a detection of a differential offset is replaced by a comparator 20. A reference voltage is input to a terminal on one side of the comparator 20 and each of a pair of differentials of a differential voltage signal is input to the other terminal one by one. Then, a setup of voltages of both of the pair of differentials to closer values to the reference voltage makes both voltages of the pair of differentials eventually the same, thereby making it possible to correct a differential offset.
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