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. 06, 2012
Filed:
Aug. 19, 2004
Yeqing (Juliet) Zhang, Webster, NY (US);
Daniel E. Viassolo, Schenectady, NY (US);
Susan J. Zoltner, Newberg, OR (US);
Howard A. Mizes, Pittsford, NY (US);
Robert P. Loce, Webster, NY (US);
Yeqing (Juliet) Zhang, Webster, NY (US);
Daniel E. Viassolo, Schenectady, NY (US);
Susan J. Zoltner, Newberg, OR (US);
Howard A. Mizes, Pittsford, NY (US);
Robert P. Loce, Webster, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
Engine response curves (RCs) can be used for streak compensation for printed documents. A feedback control paradigm can be included to effect RC compensation. Singular Value Decomposition (SVD) can be used to represent each RC in the collection of spatial RC data as a linear combination of basis vectors. RCs are approximated by selecting the first few basis vectors, the approximation aiding in noise rejection and reducing computation in the controller by reducing dimensionality of the RC data from gray levels to the number of SVD bases selected. An optimal subset of RCs is selectable from the set of approximated RCs by clustering the SVD weights, the clustered SVD weights producing TRCs that span all engine response RCs generated by a printer. Compensation RCs are constructible using reduced number of bases and clustered SVD weights.