Verification system for document substance and content
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 11, 1987
Issued Date -
N/A
app pub date -
Nov 12, 1985
filing date -
Dec 31, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An authenticator device, e.g. certificate, of verifiable composition substance and informational content with a system of production and verification. Character uniqueness signals identifying the composition of the device are recorded on the card by printing and magnetics in an encrypted form combined with statistical data signals representative of information on the card. Testing the card involves freshly sensing the character uniqueness data and entering the statistical data. Such fresh data is then compared with the recorded values after decoding. Favorable comparisons manifest approval and enter the statistical data for processing.
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