Simplified document handler job recovery system with reduced mem

Details Simplified document handler job recovery system with reduced mem Simplified document handler job recovery system with reduced mem

1994-10-07

1996-07-02

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Image reproduction system

358498, 271209, 382305, 382306, H04N 100, H04N 104

Patent

active

055328393

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.

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Research Disclosure, H330, Oct. 1, 1991, pp. 801-810, Emsworth, GB XP 000265056, "Digital Copying Device with Recirculating Original Document Facility".

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