G - Physics – 06 – K
Patent
G - Physics
06
K
352/53.2
G06K 7/00 (2006.01) G01R 31/02 (2006.01) G06K 19/07 (2006.01) G11C 5/14 (2006.01)
Patent
CA 1319987
ABSTRACT OF THE DISCLOSURE An IC card reader/writer has a short-circuit detector for determining, when an IC card is inserted in the reader/writer, whether or not any of connecting terminals for feeding a current to the IC card is short-circuited, and producing a resultant signal representative of the result of determination. A control is responsive to the resultant signal for performing, when the resultant signal does not indicate short-circuit, control such that the current is fed to the IC card via the connecting terminals. A reference voltage generator generates a reference voltage, while the short- circuit detector determines whether any of the connecting terminals is short-circuited or not by using the generated reference voltage.
613731
Fetherstonhaugh & Co.
Oki Electric Industry Co. Ltd.
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