Patents by Inventor Christopher Wilson Case

Christopher Wilson Case has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10402946
    Abstract: A system including a rotate block including an array of bit storage units for storing image data bits of a subtile of an image to be rotated, the image data bits of the subtile being arranged in a plurality of subtile rows. The rotate block is operative to load the image data bits of each subtile row of the subtile into the array according to a subtile row load direction that is selected from a plurality of load directions based at least upon a rotate operation to be performed on the image. After loading all the image data bits of the subtile into the array, the rotate block repeatedly unloads image data bits out of the array to produce a rotated subtile. The image data bits that are unloaded from the array from each unloading operation form a subtile row of the rotated subtile.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: September 3, 2019
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Christopher Wilson Case, Brian Allen Craw
  • Publication number: 20160275650
    Abstract: A system including a rotate block including an array of bit storage units for storing image data bits of a subtile of an image to be rotated, the image data bits of the subtile being arranged in a plurality of subtile rows. The rotate block is operative to load the image data bits of each subtile row of the subtile into the array according to a subtile row load direction that is selected from a plurality of load directions based at least upon a rotate operation to be performed on the image. After loading all the image data bits of the subtile into the array, the rotate block repeatedly unloads image data bits out of the array to produce a rotated subtile. The image data bits that are unloaded from the array from each unloading operation form a subtile row of the rotated subtile.
    Type: Application
    Filed: October 16, 2015
    Publication date: September 22, 2016
    Inventors: Christopher Wilson Case, Brian Allen Craw
  • Patent number: 9444964
    Abstract: A method for reducing electromagnetic emissions by an image scanner comprises cyclically dithering a frequency of a clock signal of the image scanner by repeated dither cycles, determining a phase of the dither cycle when a scan pass of a page of a document commences; and commencing all subsequent scan passes of the page of the document at a particular phase shift from the determined phase of the dither cycle.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: September 13, 2016
    Assignees: Marvell International Ltd., Lexmark International, Inc.
    Inventors: Bennett Fornal, Douglas Gene Keithley, Zachary Nathan Fister, Keith Bryan Hardin, Karl Mark Thompson, Mark Lane Mayberry, Joseph K. Yackzan, Christopher Wilson Case
  • Patent number: 8627510
    Abstract: The invention describes an electronic device and a method for operating the electronic device. The electronic device includes one or more circuit components. The electronic device further includes one or more fuses and one or more non-volatile memories to disable the access of at least one of the one or more circuit components. Each of the one or more non-volatile memories includes one or more firmware, which are used to program at least one bit to manage the access of the at least one circuit component. The method includes performing a power-up sequence in a power cycle for the electronic device. The method further includes determining a state of circuit and a state of a bit for selectively enabling a test function.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: January 7, 2014
    Assignee: Lexmark International, Inc.
    Inventor: Christopher Wilson Case
  • Patent number: 8516304
    Abstract: An integrated circuit including a logic analyzer with enhanced analyzing and debugging capabilities and a method therefore. In one embodiment, an integrated circuit includes a logic analyzer having a first input receiving a plurality of signals and an output for providing an indication of a detection, by the logic analyzer, of at least one trigger event; and a built in self test block having a first input for receiving one or more of the signals appearing at the first input of the logic analyzer, a second input coupled to the output of the logic analyzer for selectively enabling the BIST block, the BIST block generating and maintaining a signature based upon the first and second inputs thereof.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: August 20, 2013
    Assignee: Lexmark International, Inc.
    Inventors: James Ray Bailey, Christopher Wilson Case, James Patrick Sharpe
  • Patent number: 8023144
    Abstract: A method for generating transposed image data for use in an imaging apparatus having access to a memory includes (a) generating a set of data blocks corresponding to at least a portion of image data representing an image to be printed; (b) performing a combined format and transpose operation on the set of data blocks; and (c) storing a result of the combined format and transpose operation in the memory.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: September 20, 2011
    Assignee: Lexmark International, Inc.
    Inventors: Christopher Wilson Case, David A. Crutchfield, James Alan Ward
  • Publication number: 20110047427
    Abstract: An integrated circuit including a logic analyzer with enhanced analyzing and debugging capabilities and a method therefor. In one embodiment, an integrated circuit includes a logic analyzer having a first input receiving a plurality of signals and an output for providing an indication of a detection, by the logic analyzer, of at least one trigger event; and a built in self test block having a first input for receiving one or more of the signals appearing at the first input of the logic analyzer, a second input coupled to the output of the logic analyzer for selectively enabling the BIST block, the BIST block generating and maintaining a signature based upon the first and second inputs thereof.
    Type: Application
    Filed: September 8, 2010
    Publication date: February 24, 2011
    Inventors: James Ray Bailey, Christopher Wilson Case, James Patrick Sharpe
  • Publication number: 20110029815
    Abstract: The invention describes an electronic device and a method for operating the electronic device. The electronic device includes one or more circuit components. The electronic device further includes one or more fuses and one or more non-volatile memories to disable the access of at least one of the one or more circuit components. Each of the one or more non-volatile memories includes one or more firmware, which are used to program at least one bit to manage the access of the at least one circuit component. The method includes performing a power-up sequence in a power cycle for the electronic device. The method further includes determining a state of circuit and a state of a bit for selectively enabling a test function.
    Type: Application
    Filed: August 3, 2009
    Publication date: February 3, 2011
    Inventor: Christopher Wilson Case
  • Publication number: 20080239338
    Abstract: A method for performing error diffusion halftoning of an image includes subdividing the image into a plurality of tiles, the plurality of tiles including a first tile and a second tile adjacent to the first tile; performing error diffusion processing of the first tile; and performing the error diffusion processing of the second tile based on an output phase of the first tile.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 2, 2008
    Inventors: James Ray Bailey, Christopher Wilson Case, David Allen Crutchfield
  • Publication number: 20080235501
    Abstract: A method for detecting and correcting firmware corruption in a system having a host communicatively coupled to an electronic apparatus, the electronic apparatus having a hardware unit communicatively coupled to a non-volatile memory, includes determining via the hardware unit whether firmware on the non-volatile memory is corrupted; if the firmware is determined to be corrupted, then: invoking a communication driver resident in the hardware unit to establish bi-directional communications between the host and the electronic apparatus; and initiating a firmware download from the host to update the firmware on the non-volatile memory to an uncorrupted state.
    Type: Application
    Filed: March 19, 2007
    Publication date: September 25, 2008
    Inventors: James Ray Bailey, Christopher Wilson Case, Vladimir Vinogradov
  • Publication number: 20080013119
    Abstract: A method for generating transposed image data for use in an imaging apparatus having access to a memory includes (a) generating a set of data blocks corresponding to at least a portion of image data representing an image to be printed; (b) performing a combined format and transpose operation on the set of data blocks; and (c) storing a result of the combined format and transpose operation in the memory.
    Type: Application
    Filed: July 11, 2006
    Publication date: January 17, 2008
    Inventors: Christopher Wilson Case, David A. Crutchfield, James Alan Ward