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:
Jul. 02, 1996
Filed:
Oct. 07, 1994
Thomas R Beikirch, Webster, NY (US);
Margaret C Plain, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
In a digital imaging document handling system for sequentially feeding plural document sheets in a document feeding path from a document input to an electronic imaging station, wherein document sheet feeding stoppages in the document feeding path are detectable, a simplified job recovery system is provided by providing a duplicate image detection system for the automatic deletion of duplicate electronic document page images. The duplicate page images may be detected efficiently without full image comparisons by checksumming the pixels of multiple cell areas for the page, deleting the least significant figures, and comparing the respective cell checksums. In response to a sheet feeding stoppage signal instructions may be displayed for simply removing the document sheets in the document feeding path and reloading them into the document input irrespective of whether or not the removed document sheets have already been electronically imaged, and refeeding all the removed document sheets path from the document input to the electronic imaging station to be electronically imaged.