发明名称 Techniques for printing with integrated paper sheet identification
摘要 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.
申请公布号 EP1883039(B1) 申请公布日期 2014.09.03
申请号 EP20070112623 申请日期 2007.07.17
申请人 RICOH COMPANY, LTD. 发明人 PIERSOL, KURT;WEYL, STEPHEN
分类号 G06K9/00;G06K9/52;H04N1/32 主分类号 G06K9/00
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