Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 26, 2018
Patent Application Number
15304972
Date Filed
April 17, 2015
Patent Citations Received
Patent Primary Examiner
Patent abstract
A card reader may include a card insertion part comprising a card insertion port is formed; a plurality of metal sensors structured to detect whether a foreign matter including metal material has been attached near the card insertion part; and a control section with which the plurality of the metal sensors are connected. The metal sensor may include a core formed of magnetic material and an excitation coil and a detection coil which are wound around the core. The control section may be structured to supply a current to each of the excitation coils of the plurality of the metal sensors at different timings.
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