Paul E Butterfield

US Patent:

6366362, Apr 2, 2002

Filed:

Dec 23, 1998

Appl. No.:

09/220051

Inventors:

Paul M. Butterfield - Fairport NY
David C. Robinson - Penfield NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

H04N 146

US Classification:

358 19, 358504, 358523, 382209

Abstract:

A method and apparatus to maintain constant tone reproduction on a printed output over time. This is accomplished by performing template matching on a halftoned binary image prior to sending the binary image to a Raster Output Scanner (ROS). The template matching operation selectively replaces bit patterns in the binary image with template bit patterns, based on a detected xerographic density.

US Patent:

7259857, Aug 21, 2007

Filed:

Jan 14, 2004

Appl. No.:

10/756396

Inventors:

Paul M. Butterfield - Ontario NY, US
Joseph D. Hancock - Rochester NY, US
Shawn P. Updegraff - Fairport NY, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G01N 21/57
G01N 21/59

US Classification:

356444, 356402, 356446, 347 19

Abstract:

Methods for automated uniformity assessment and modification of image non-uniformities using an image measurement device capable of determining image reflectance and/or transmitter as a function of position, such as a spectrophotometer, a calorimeter, and/or a densitometer. One or more of these devices scan an image on a substrate, such as a sheet, thereby generating data representing image characteristics, such as, for example, image non-uniformity. The sheet may contain a reference/test pattern including one column, strip or patch intended to have a uniform density. This data generated by the device after the scan of the substrate is analyzed with signal processing algorithms for image characteristics assessment, including image spatial uniformity and compared to reference image characteristics including image spatial uniformity. An image modification profile may be generated to be applied to a marking system to thereby alter subsequent image data and improve image spatial uniformity of the marking system.

US Patent:

7305200, Dec 4, 2007

Filed:

Oct 28, 2005

Appl. No.:

11/261341

Inventors:

Matthew F Hoffman - Ontario NY, US
Paul M. Butterfield - Ontario NY, US
Mark P. Haefner - Pittsford NY, US
Christopher J. Degroff - Webster NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

G03G 15/00
G03G 15/01

US Classification:

399 82, 399 15, 399 39, 399401

Abstract:

A printing system includes a marking engine which applies colorants to a print medium to render an image. The marking engine has a single pass color gamut which the marking engine is capable of rendering in a single pass of the print medium through the marking engine. The marking engine is capable of rendering an extended color gamut in a plurality of passes of the print medium through the marking engine. A control system is associated with the marking engine. The control system identifies an image which falls outside the single pass color gamut of the marking engine and schedules a plurality of passes for rendering the image.

US Patent:

7511855, Mar 31, 2009

Filed:

Dec 9, 2005

Appl. No.:

11/297294

Inventors:

Paul M. Butterfield - Ontario NY, US
Michael J. Diehl - Rochester NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

G06F 15/00
G06K 1/03

US Classification:

358 19, 358 327, 382266

Abstract:

Systems, methods, and programs for reducing edge effects, the systems, methods, and programs include inputting an image mask, the image mask defining the location of a boundary to receive a coating , modifying an edge of the image mask to reduced the thickness of the coating at the modified edge; creating a printing plate base on the modified image mask; and using the printing plate to print the coating on a substrate.

US Patent:

7639389, Dec 29, 2009

Filed:

Dec 12, 2006

Appl. No.:

11/609409

Inventors:

Paul M. Butterfield - Ontario NY, US
Mark A. Gwaltney - Fairport NY, US
Connie F. Purdum - Rochester NY, US
Carlos O. Alva - Penfield NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

G06K 15/02
G06T 3/40
G06F 3/12
H04N 1/393

US Classification:

358 12, 358 324, 358 326, 358 113, 358 116, 358406

Abstract:

Test image data is introduced into the image processing path of a marking device, at various points prior to the marking engine. Comparison of output of the marking engine from various sources of image data is made to diagnose imaging path component failure. Imaging data at various points in the image processing path is captured for analysis as part of component failure diagnosis. Various memory devices are used to both introduce test data at various points in the image processing path and capture data at various points of the image processing path.

US Patent:

7639393, Dec 29, 2009

Filed:

Jun 29, 2005

Appl. No.:

11/168921

Inventors:

Paul M Butterfield - Ontario NY, US
Martin S Maltz - Rochester NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

G06F 15/00
G03F 3/08
G06K 9/00

US Classification:

358 19, 358518, 358520, 382167

Abstract:

Systems and methods are provided for printing a spot ink. The spot ink may be prepared before the time of printing. The spot ink may be adjusted by half-toning or supplemental CMYK colors at the time of printing.

US Patent:

20050157317, Jul 21, 2005

Filed:

Jan 16, 2004

Appl. No.:

10/758099

Inventors:

Paul Butterfield - Ontario NY, US
Mark Gwaltney - Fairport NY, US
Timothy Sulenski - Walworth NY, US

Assignee:

XEROX CORPORATION - Stamford CT

International Classification:

H04N001/58
G03G015/01
G01J003/46

US Classification:

358001900, 358003260, 358504000, 358540000, 347116000, 399301000, 356319000

Abstract:

A system and method for detecting and correcting color misregistration errors in a color image forming device. Spectrophotometric analysis is performed on special color registration patches to transform color registration errors into a color signal. The color registration patch is designed so the color shift detected by the spectrophotometer allows prediction of the amount of color misregistration.

US Patent:

20070281224, Dec 6, 2007

Filed:

May 31, 2006

Appl. No.:

11/421251

Inventors:

Kerry Arthur Kirk - Farmington NY, US
Alvin Daniel Kromm - Webster NY, US
Paul Marcius Butterfield - Ontario NY, US

International Classification:

G03G 15/08
G03C 3/00

US Classification:

430 18, 4301261

Abstract:

A scratch-off document and a method for producing a scratch off document are disclosed. The scratch-off document may include: a base material; a first toner layer affixed to the base material, wherein the first toner layer comprises a content to be masked; an optional barrier layer; and a second toner layer removably affixed to the barrier layer, so that the second toner layer may be removed when scratched using a hard object.