Techniques for printing with integrated paper sheet...

Typewriting machines – Including control of format and selection of type-face by... – Including means for responding to input program or incoming...

Reexamination Certificate

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Details

C399S366000, C399S370000, C400S104000, C283S068000, C283S069000

Reexamination Certificate

active

07731435

ABSTRACT:
A printing method and apparatus includes fingerprinting a sheet of printable media such as paper to obtain a fingerprint. The fingerprint is encrypted using an encryption key known only to the user wanting to print the document. The encrypted fingerprint is then encoded and transferred to the document as machine readable information.

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