Document management apparatus and document management...

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique

Reexamination Certificate

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Details

C713S176000

Reexamination Certificate

active

07627765

ABSTRACT:
A document management apparatus includes a hash generator that generates a hash value based on digital document data stored in a database, a communication unit that inputs time information, and a microfilm writer that performs processing to record a converted document data, converted to image data based on the digital document data, on a microfilm, and record a document ID as identification information of the converted document data recorded on the microfilm, the hash value, and the time information, on the microfilm.

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patent: 2004/0153653 (2004-08-01), Abhyankar et al.
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patent: 2005/0132079 (2005-06-01), Iglesia et al.
patent: 2005/0132198 (2005-06-01), Ahuja et al.
patent: 2007/0266253 (2007-11-01), Fukasawa
patent: A 2004-240969 (2004-08-01), None

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