1
Robert J Rolleston, Martin S Maltz, Judith E Stinehour: Color printer calibration test pattern. Xerox Corporation, Mark Costello, May 16, 1995: US05416613 (108 worldwide citation)

A method of calibrating the response of the printer to an image described in terms of colorimetric values, including the steps of: a) setting printer parameters; b) deriving a printer response characteristic by printing a calibration test from device dependent printer signals stored in a device memo ...


2
Robert J Rolleston, Martin S Maltz: Color printer calibration with blended look up tables. Xerox Corporation, Mark Costello, January 9, 1996: US05483360 (68 worldwide citation)

A color printer, responsive to printer signals to deposit printer colorants on a medium in accordance with printer signals received, is calibrated by operating the color printer with printer signals selected to cause the printer to print color samples on the medium; measuring the color samples to de ...


3
Robert J Rolleston, Martin S Maltz, Judith E Stinehour: Color printer calibration architecture. Xerox Corporation, Mark Costello, April 19, 1994: US05305119 (63 worldwide citation)

In a printer which produces images as a function of the combination of cyan (C), magenta (M), yellow (Y) and black (K) colorants on an output color print, responsive to device independent colorimetric description of an image, there is provided a method of calibrating the response of the printer to a ...


4
Robert J Rolleston, Martin S Maltz, Judith E Stinehour: Color printer calibration architecture. June 18, 1996: US05528386 (61 worldwide citation)

In a printer which produces images as a function of the combination of cyan (C), magenta (M), yellow (Y) and black (K) colorants on an output color print, responsive to device independent colorimetric description of an image, there is provided a method of calibrating the response of the printer to a ...


5
Lingappa K Mestha, Peter A Crean, Martin S Maltz, Robert J Rolleston, Yao Rong Wang, Eric Jackson, Thyagarajan Balasubramanian: On-line calibration system for a dynamically varying color marking device. Xerox Corporation, Fay Sharpe, December 11, 2007: US07307752 (37 worldwide citation)

A color marking device including a control system for calibration of the device based upon dynamic color balance control of an output image. The system comprises a front end converter for converting an input signal representative of a target image comprising a preselected color into a device-depende ...


6
Robert J Rolleston, Martin S Maltz: Color printer calibration correcting for local printer non-linearities. Xerox Corporation, Mark Costello, January 14, 1997: US05594557 (35 worldwide citation)

A color printer calibration method for improving printer accuracy in regions of local non-linearity includes the steps of: a) starting with filled rectangular array of color mappings A.sub.0 mapping printer signals to device independent color space signals; b) empirically deriving a set of color map ...


7
Martin S Maltz: Methods and apparatus for multigeneration color image processing. Xerox Corporation, Finnegan Henderson Farabow Garrett & Dunner, April 26, 1994: US05307182 (30 worldwide citation)

An image processing apparatus and method for performing the steps of grouping colors of a multi-pixel image stored in a memory into sets of colors, determining the average color of each set of colors, selecting a target color, for each set of colors, from a plurality of predetermined target colors, ...


8
Reiner Eschbach, Martin S Maltz: Infrared watermarking of photographic images by matched differential black strategies. Xerox Corporation, Fay Sharpe, February 7, 2012: US08111432 (27 worldwide citation)

A system and method for infrared watermarking using gray component replacement and other color removal schemes is shown. This method includes providing a substrate and implementing two infrared absorption strategies, one with low infrared absorption and the other with high infrared absorption. These ...


9
Martin S Maltz, Steven J Harrington, Scott A Bennett: Blended look-up table for printing images with both pictorial and graphical elements. Xerox Corporation, Fay Sharpe Beall Fagan Minnich & McKee, March 31, 1998: US05734802 (26 worldwide citation)

A method and apparatus for blending pictorial and graphical look-up tables is provided. The blended look-up table, addressable by image signals from both pictorial and graphical objects, produces printer signals which are a blend of the output of the pictorial and graphical look-up tables. For image ...


10
Martin S Maltz: Electrolytic pen. Xerox Corporation, April 20, 1976: US03952314 (20 worldwide citation)

A display and/or marking pen for use with an electrolytic type ink effective when subjected to an electric current to change color. The improved pen has activating electrodes strategically disposed adjacent the ink discharge orifice designed to create the desired color changing current as the ink pa ...