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Value medium, reuse processing apparatus, the value consumer, the value medium processing system, the reuse processing method, and value consumed METHOD
Value medium, reuse processing apparatus, the value consumer, the value medium processing system, the reuse processing method, and value consumed METHOD
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机译:有价介质,重用处理装置,有价消费者,有价介质处理系统,有重用处理方法和有价消耗方法
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摘要
PROBLEM TO BE SOLVED: To provide a value medium that can be recycled, reduced in cost, and improved in convenience for a user.;SOLUTION: A contactless IC card includes an n-bit subtraction register 14 in which a held value is read and rewritten by an opposite-side device which communicates by radio through a radio communication part 11; The subtraction register 14 has a rewrite limiting circuit which permits change of rewriting to a value smaller than a currently held value and inhibits change of rewriting to a value larger than the currently held value. Further, the subtraction register 14 holds the remaining number of times of reuse of the contactless IC card 1 with high-order m bits (mn) and holds the value that the contactless IC card 1 has with low-order (n-m) bits.;COPYRIGHT: (C)2015,JPO&INPIT
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