1
Brian Edward Cooper, Shaun Timothy Love: Method for halftoning using interlocked threshold arrays or interlocked dot profiles. Lexmark International, D Brent Lambert, Frederick H Gribbell, March 12, 2002: US06356363 (46 worldwide citation)

A dispersed-dot stochastic dither array is provided for rendering halftone images having excellent visual quality. For color printing, a separate threshold array is generated for each of the color planes, however, the stochastic screens are interlocked so that the threshold arrays are generated whil ...


2
Patrick Alan Casey, Shaun Timothy Love, Timothy John Rademacher, Steven Frank Weed, Charles Thomas Wolfe: Methods and apparatus for isochronous printing with minimal buffering. Lexmark International, Frederick H Gribbell, D Brent Lambert, August 1, 2000: US06097499 (45 worldwide citation)

Methods and apparatus for using isochronous data transfer mode to communicate between a host computer and a printer. Preferably, the printer receives a sufficient volume of data from the host, such as a computer, over an isochronous communications channel, to begin but not complete one print pass (i ...


3
Shaun Timothy Love, Martin Geoffrey Rivers, Hugh Deral Spears: Multi-function peripheral system with downloadable drivers. Lexmark International, D Brent Lambert, Needle & Rosenberg P C, July 18, 2000: US06091508 (25 worldwide citation)

The present invention allows the operation of an attached external input device by a printer. The external input device may be, for example, a scanner or digital camera giving the printer the capability to function as a copier. Software to control or "drive" the input device is optionally contained ...


4
Brian Edward Cooper, Shaun Timothy Love: Method and apparatus for color halftoning using interlocked threshold arrays. Lexmark International, John J McArdle Jr, Frederick H Gribell Esq, February 1, 2000: US06020978 (22 worldwide citation)

A dispersed-dot stochastic dither array is provided for rendering halftone images having excellent visual quality and are created by a minimum density variance method. By minimizing the variance in the number of dots within each local region of the image, a smooth and dispersed distribution of dots ...


5
Brian Edward Cooper, Thomas Anthony Knight, Shaun Timothy Love: Method for halftoning using stochastic dithering with minimum density variance. Lexmark International, Frederick H Gribbell, December 9, 1997: US05696602 (15 worldwide citation)

A dispersed-dot stochastic dither array is provided for rendering halftone images having excellent visual quality and are created by a minimum density variance method. The minimum density variance method considers the statistical distribution of the pixels in the image, and is unrelated to previous ...


6
Shaun Timothy Love, Stuart Willard Daniel, Steven Frank Weed: Method of converting color values. Lexmark International, Todd T Taylor, D Brent Lambert, September 5, 2000: US06115031 (13 worldwide citation)

A method of converting a first set of input color values, such as RGB color values, into a set of device colorants, such as CMY color values, includes the step of providing a look-up table associating a respective, predetermined set of CMY color values with each of a plurality of selected sets of RG ...


7
Allan Chiwan Cheung, Scott Michael Heydinger, Shaun Timothy Love: Digital halftoning with error diffusion. Lexmark International, October 23, 2001: US06307647 (12 worldwide citation)

An error diffusion halftoning technique calculates only two error terms with one being divisible by two and the other being divisible by four. This is accomplished through using a modified Floyd and Steinberg type filter preferably having weights of 8-0-4-4 expressed in clockwise sequence from the o ...


8
Shaun Timothy Love, Bruce Alan Peltzer, Gregory John Sherwood, Steven Frank Weed: Distributed print processing. Lexmark International, Frederick H Gribbell, John J McArdle Jr, May 18, 1999: US05905852 (9 worldwide citation)

Apparatus, system and method is provided in which a primary printer prepares print data for use by its resident print engine, or by an alternate printer. The primary printer includes subsystems for receiving original print data from a device, such as a computer or scanner, and for converting the ori ...


9
Brian Wesley Damon, Shaun Timothy Love, Cary Patterson Ravitz: Method of compensating for electronic printhead skew and bow correction in an imaging machine to reduce print artifacts. Lexmark International, March 1, 2011: US07898695 (6 worldwide citation)

A method for reducing the occurrence of print artifacts in an imaging machine includes the steps of applying an electronic printhead skew correction to image data corresponding to at least one of a plurality of image planes, e.g., of a cyan image plane, a magenta image plane, a yellow image plane an ...


10
Brian Edward Cooper, Brian Wesley Damon, Shaun Timothy Love: Method and apparatus for correcting unadjusted threshold arrays for halftoning by use of transfer function tables. Lexmark International, Frederick H Gribbell, D Brent Lambert, September 23, 2003: US06624911 (5 worldwide citation)

A printer that stores a minimal number of unadjusted stochastic threshold arrays in non-volatile memory, in which the unadjusted threshold arrays are used to generate adjusted threshold arrays at run time by use of Transfer Function Tables (TFT's). The unadjusted array for a particular color is ...