The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 2011
Filed:
Nov. 30, 2007
Steven J. Simske, Fort Collins, CO (US);
David Orr, Philomath, OR (US);
Lonnie D. Mandigo, Corvallis, OR (US);
Steven J. Simske, Fort Collins, CO (US);
David Orr, Philomath, OR (US);
Lonnie D. Mandigo, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A security printing method includes generating a security file having a plurality of metadata fields and an information field concatenated together in an initial sequence. A security file identification is generated from the plurality of metadata fields and the information field. The security file identification corresponds to the initial sequence and is a one-way function of the plurality of metadata fields and the information field. The method further includes selecting a custom scrambling technique based on the security file identification, and scrambling the initial sequence using the selected custom scrambling technique, thereby creating a scrambled sequence of the plurality of metadata field and the information field.