Cryptography – Electric signal modification – Having production of printed copy
Patent
1995-12-19
1998-11-10
Gregory, Bernarr E.
Cryptography
Electric signal modification
Having production of printed copy
380 23, 380 25, 380 46, 380 49, 380 55, H04L 900
Patent
active
058356045
ABSTRACT:
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.
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Gregory Bernarr E.
Malandra, Jr. Charles R.
Pitney Bowes Inc.
Scolnick Melvin J.
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