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:
Nov. 20, 2012
Filed:
Oct. 25, 2006
John Francis Mergen, Baltimore, MD (US);
Carl Marshall Eliot Powell, Gaithersburg, MD (US);
Daniel M. Wood, Acton, WA (US);
John Francis Mergen, Baltimore, MD (US);
Carl Marshall Eliot Powell, Gaithersburg, MD (US);
Daniel M. Wood, Acton, WA (US);
Verizon Patent and Licensing Inc., Basking Ridge, NJ (US);
Abstract
An approach for tracking documents using image processing is disclosed. Auxiliary information corresponding to compressed digital information is extracted. The auxiliary information is used to output text lines, which undergo a hash function (e.g., checksum operation). In this manner, individual hash values are generated, as well as an overall hash value of the entire file of text lines. A reference set of hash values are maintained to identify other compressed digital information.