Document correction detection system and document tampering...

Details Document correction detection system and document tampering... Document correction detection system and document tampering...

2006-04-11

2009-11-10

Hess, Daniel A (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C713S176000

Reexamination Certificate

active

07614558

ABSTRACT:
A document correction detection system includes a code analysis section that inputs a read image provided by optically reading a print medium on which a document image and a code image are formed and extracts the code image from the read image and a correction detection section that determines a correction made to the document image on the print medium if an anomaly in the code image extracted by the code analysis section is detected.

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Derwent Information LTD, Derwent week 200251, Abstract for publication No. NL 1015611 C2, Inventor Tuinstra, S G.

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