发明名称 A method of mapping destination addresses for use in calculating digital tokens
摘要 <p>A method of creating an open system digital token includes sending predetermined information to a digital token generation process. A set of characters are randomly selected from the predetermined information. A mapping algorithm is applied to the selected characters to facilitate a character recognition process and a random number algorithm is applied to the mapped selected characters to obtain a random number. A digital token is calculated using the random number. The predetermined information may be delivery address information in the form of an ASCII string which is reduced by eliminating certain non-alphanumeric characters from the ASCII string. Certain characters can be modified to facilitate OCR processing. A plurality of characters are randomly selected from the reduced ASCII string to determine random positions in the reduced ASCII string. The ASCII code of the selected characters are mapped to the code of a reduced space using a mapping table. The mapped delivery address information is included in a digital token calculation of the digital token generation process.</p>
申请公布号 EP0780807(A2) 申请公布日期 1997.06.25
申请号 EP19960120503 申请日期 1996.12.19
申请人 PITNEY BOWES INC. 发明人 LEE, DAVID K.
分类号 G07B17/00;(IPC1-7):G07B17/02 主分类号 G07B17/00
代理机构 代理人
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