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:
Aug. 17, 2010
Filed:
Jul. 31, 2006
Kiri Amarakoon, Pittsford, NY (US);
Cyril Edmunds, Webster, NY (US);
Roger Triplett, Penfield, NY (US);
Kiri Amarakoon, Pittsford, NY (US);
Cyril Edmunds, Webster, NY (US);
Roger Triplett, Penfield, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
Signals from a color (multi-row) full width array sensor are used to detect and correct for motion quality issues in a constant velocity transport or platen document scanner. This capitalizes on the geometry of the full width array sensor, in which three or four rows of photo sites are arranged in the slow scan direction. For example, the arrival time of an image edge of the red sensor row may be compared to the slightly later arrival time at the blue sensor row, and the difference yields the velocity. The velocity can then be fed back to control the transport.