Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 21, 2010
Patent Application Number
11727360
Date Filed
March 26, 2007
Patent Primary Examiner
Patent abstract
An input terminal is electrically connected to a contact point. An anti-corrosion current supplying section is operable to supply an anti-corrosion current to the contact point through the input terminal so as to remove corrosion in the contact point. A series resistor is electrically interposed between the input terminal of the signal processing circuit and the contact point. The anti-corrosion current is supplied to the contact point through the series resistor.
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