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A METHOD OF DETERMINING THE CURRENT MONEY AMOUNT IN A DATA CARRIER AND SYSTEM FOR IMPLEMENTING THIS METHOD.
A METHOD OF DETERMINING THE CURRENT MONEY AMOUNT IN A DATA CARRIER AND SYSTEM FOR IMPLEMENTING THIS METHOD.
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机译:确定数据载体中当前货币量的方法和实施该方法的系统。
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摘要
The steps involved ae shown in the figure. The set of transaction data is stored with the certificate produced by card`s key. Then a certificate is calculated with the actual credit balance which is compared with the balance a the certificate stored. The transaction data in agreement with this is selected.
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