Patents by Inventor Chuohao Tang

Chuohao Tang 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: 10674043
    Abstract: In some examples, a print cartridge includes a memory device comprising quantized coefficients derived from a lossy compression, at a selected step size, of a difference color table including a plurality of difference nodes in which each difference node represents a difference value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference color table including a first set of difference nodes each representing a difference value that is within an error threshold at the selected step size, and a second set of difference nodes each representing a difference value that is outside an error threshold at the selected step size. The memory device further comprises corrective information to correct the second set of difference nodes of the reconstructed difference color table.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: June 2, 2020
    Assignees: Hewlett-Packard Development Company, L.P., Purdue Research Foundation
    Inventors: Chuohao Tang, Sean Michael Collison, Amy Ruth Reibman, Mark Q. Shaw, Jan P. Allebach, Jay S. Gondek
  • Patent number: 10630868
    Abstract: In some examples, a component for a printing device includes a memory device comprising a plurality of corrective data to produce a corresponding plurality of color tables each customized for a respective media type of a plurality of media types, wherein a respective corrective data of the plurality of corrective data corresponds to nodes of a reference color table for the printing device that is able to accept the plurality of media types for printing. The respective corrective data includes a plurality of residual values to transform the nodes of the reference color table to a customized color table for use with a selected media type of the plurality of media types.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: April 21, 2020
    Assignees: Hewlett-Packard Development Company, L.P., Purdue Research Foundation
    Inventors: Mark Q. Shaw, Paul Jeran, Sean Michael Collison, Terry M. Nelson, Chuohao Tang, Amy Ruth Reibman, Jan P. Allebach
  • Patent number: 10602028
    Abstract: A memory device includes a compressed color table and corrective information. The compressed color table includes a first set of nodes of the color table compressed with a lossy compression at a selected compression ratio. The first set of nodes include a color difference within an error threshold at the selected compression ratio. Corrective information is included for a second set of nodes of the color table. The second set of nodes have a color difference outside the error threshold.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: March 24, 2020
    Inventors: Chuohao Tang, Amy Ruth Reibman, Jan P. Allebach, Sean Michael Collison, Mark Q. Shaw, Jay S. Gondek
  • Patent number: 10574862
    Abstract: In some examples, a supply component for a printing device includes a memory device comprising corrective data to produce a customized color table for a first color gamut, wherein the corrective data corresponds to nodes of a reference color table for the printing device that is able to employ a plurality of color gamuts for printing. The corrective data comprises a plurality of residual values to transform the nodes of the reference color table to the customized color table. The corrective data is accessible by the printing device to transform the reference color table to the customized color table used for printing to a media using the first color gamut.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: February 25, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Mark Q. Shaw, Paul Jeran, Terry M. Nelson, Sean Michael Collison, Chuohao Tang, Amy Ruth Reibman, Jan P. Allebach
  • Patent number: 10498931
    Abstract: In some examples, a fuser for a printing device includes a memory device comprising corrective data corresponding to a reference color table for the printing device that is able to operate in a plurality of different modes, the corrective data comprising quantized coefficients derived from a compression of a difference color table including a plurality of difference nodes in which each difference node represents a value that is to be combined with a corresponding node of the reference color table, the quantized coefficients useable to produce a reconstructed difference table. The corrective data including residue values to combine with the reconstructed difference table to produce a customized color table for a selected mode of the plurality of different modes.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: December 3, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Mark Q. Shaw, Paul Jeran, Terry M. Nelson, Anthony Peter Holden, Chuohao Tang, Amy Ruth Reibman, Jan P. Allebach
  • Publication number: 20190306375
    Abstract: A memory device includes a compressed color table and corrective information. The compressed color table includes a first set of nodes of the color table compressed with a lossy compression at a selected compression ratio. The first set of nodes include a color difference within an error threshold at the selected compression ratio. Corrective information is included for a second set of nodes of the color table. The second set of nodes have a color difference outside the error threshold.
    Type: Application
    Filed: July 8, 2016
    Publication date: October 3, 2019
    Inventors: Chuohao Tang, Amy Ruth Reibman, Jan P. Allebach, Sean Michael Collison, Mark Q. Shaw, Jay S. Gondek
  • Publication number: 20190275807
    Abstract: In some examples, a component for a printing device includes a memory device comprising a plurality of corrective data to produce a corresponding plurality of color tables each customized for a respective media type of a plurality of media types, wherein a respective corrective data of the plurality of corrective data corresponds to nodes of a reference color table for the printing device that is able to accept the plurality of media types for printing. The respective corrective data includes a plurality of residual values to transform the nodes of the reference color table to a customized color table for use with a selected media type of the plurality of media types.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 12, 2019
    Inventors: Mark Q. Shaw, Paul Jeran, Sean Michael Collison, Terry M. Nelson, Chuohao Tang, Amy Ruth Reibman, Jan P. Allebach
  • Patent number: 10356285
    Abstract: In some examples, a supply component for a printing device includes a memory device comprising a plurality of corrective data to produce a corresponding plurality of color tables each customized for a respective media type of a plurality of media types, wherein a respective corrective data of the plurality of corrective data corresponds to nodes of a reference color table for the printing device that is able to accept the plurality of media types for printing. The respective corrective data includes a plurality of residual values to transform the nodes of the reference color table to a customized color table for use with a selected media type of the plurality of media types.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: July 16, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Mark Q. Shaw, Paul Jeran, Sean Michael Collison, Terry M. Nelson, Chuohao Tang, Amy Ruth Reibman, Jan P. Allebach
  • Patent number: 10341533
    Abstract: In some examples, a print cartridge component includes a memory device comprising coefficients based on a compression of a difference table including a plurality of difference nodes in which each difference node represents a value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the coefficients useable to produce a reconstructed difference table, and residue information representing a difference of the color table and the reconstructed difference table.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: July 2, 2019
    Inventors: Zhenhua Hu, Chuohao Tang, Terry M. Nelson, Mark Q. Shaw, Jan P. Allebach, Amy Ruth Reibman
  • Publication number: 20190182409
    Abstract: In some examples, a supply component for a printing device includes a memory device comprising corrective data to produce a customized color table for a first color gamut, wherein the corrective data corresponds to nodes of a reference color table for the printing device that is able to employ a plurality of color gamuts for printing. The corrective data comprises a plurality of residual values to transform the nodes of the reference color table to the customized color table. The corrective data is accessible by the printing device to transform the reference color table to the customized color table used for printing to a media using the first color gamut.
    Type: Application
    Filed: January 7, 2019
    Publication date: June 13, 2019
    Inventors: Mark Q. Shaw, Paul Jeran, Terry M. Nelson, Sean Michael Collison, Chuohao Tang, Amy Ruth Reibman, Jan P. Allebach
  • Patent number: 10306111
    Abstract: In some examples, a print cartridge includes a memory device comprising quantized coefficients derived from a lossy compression, at a selected step size, of a difference color table including a plurality of difference nodes in which each difference node represents a difference value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference color table including a first set of difference nodes each representing a difference value that is within an error threshold at the selected step size, and a second set of difference nodes each representing a difference value that is outside an error threshold at the selected step size. The memory device further comprises corrective information to correct the second set of difference nodes of the reconstructed difference color table.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: May 28, 2019
    Inventors: Chuohao Tang, Sean Michael Collison, Amy Ruth Reibman, Mark Q. Shaw, Jan P. Allebach, Jay S. Gondek
  • Publication number: 20190134991
    Abstract: In some examples, a fuser for a printing device includes a memory device comprising corrective data corresponding to a reference color table for the printing device that is able to operate in a plurality of different modes, the corrective data comprising quantized coefficients derived from a compression of a difference color table including a plurality of difference nodes in which each difference node represents a value that is to be combined with a corresponding node of the reference color table, the quantized coefficients useable to produce a reconstructed difference table/ The corrective data including residue values to combine with the reconstructed difference table to produce a customized color table for a selected mode of the plurality of different modes.
    Type: Application
    Filed: January 7, 2019
    Publication date: May 9, 2019
    Inventors: Mark Q. Shaw, Paul Jeran, Terry M. Nelson, Anthony Peter Holden, Chuohao Tang, Amy Ruth Reibman, Jan P. Allebach
  • Publication number: 20190082077
    Abstract: In some examples, a print cartridge component includes a memory device comprising coefficients based on a compression of a difference table including a plurality of difference nodes in which each difference node represents a value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the coefficients useable to produce a reconstructed difference table, and residue information representing a difference of the color table and the reconstructed difference table.
    Type: Application
    Filed: November 13, 2018
    Publication date: March 14, 2019
    Inventors: Zhenhua Hu, Chuohao Tang, Terry M. Nelson, Mark Q. Shaw, Jan P. Allebach, Amy Ruth Reibman
  • Patent number: 10165154
    Abstract: In some examples, a print cartridge includes a memory device comprising coefficients derived from a compression of a difference table including a plurality of difference nodes in which each difference node represents a value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the coefficients useable to produce a reconstructed difference table, and residue information representing a difference of the color table and the reconstructed difference table.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: December 25, 2018
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhenhua Hu, Chuohao Tang, Terry M. Nelson, Mark Q. Shaw, Jan P. Allebach, Amy Ruth Reibman
  • Publication number: 20180270398
    Abstract: In some examples, a print cartridge includes a memory device comprising quantized coefficients derived from a lossy compression, at a selected step size, of a difference color table including a plurality of difference nodes in which each difference node represents a difference value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference color table including a first set of difference nodes each representing a difference value that is within an error threshold at the selected step size, and a second set of difference nodes each representing a difference value that is outside an error threshold at the selected step size. The memory device further comprises corrective information to correct the second set of difference nodes of the reconstructed difference color table.
    Type: Application
    Filed: May 23, 2018
    Publication date: September 20, 2018
    Inventors: Chuohao Tang, Sean Michael Collison, Amy Ruth Reibman, Mark Q. Shaw, Jan P. Allebach, Jay S. Gondek
  • Publication number: 20180255205
    Abstract: In some examples, a print cartridge includes a memory device comprising coefficients derived from a compression of a difference table including a plurality of difference nodes in which each difference node represents a value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the coefficients useable to produce a reconstructed difference table, and residue information representing a difference of the color table and the reconstructed difference table.
    Type: Application
    Filed: May 3, 2018
    Publication date: September 6, 2018
    Inventors: Zhenhua Hu, Chuohao Tang, Terry M. Nelson, Mark Q. Shaw, Jan P. Allebach, Amy Ruth Reibman
  • Patent number: 9992382
    Abstract: In some examples, a print cartridge includes a memory device comprising quantized coefficients derived from a compression of a difference table including a plurality of difference nodes in which each difference node represents a value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference table, and a plurality of residue nodes in which each residue node represents a value that is a difference of a value of a node of the color table and a value of a corresponding node of the reconstructed difference table.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: June 5, 2018
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhenhua Hu, Chuohao Tang, Terry M. Nelson, Mark Q. Shaw, Jan P. Allebach, Amy Ruth Reibman
  • Publication number: 20180013928
    Abstract: In some examples, a supply component for a printing device includes a memory device comprising a plurality of corrective data to produce a corresponding plurality of color tables each customized for a respective media type of a plurality of media types, wherein a respective corrective data of the plurality of corrective data corresponds to nodes of a reference color table for the printing device that is able to accept the plurality of media types for printing. The respective corrective data includes a plurality of residual values to transform the nodes of the reference color table to a customized color table for use with a selected media type of the plurality of media types.
    Type: Application
    Filed: September 12, 2017
    Publication date: January 11, 2018
    Inventors: Mark Q. Shaw, Paul Jeran, Sean Michael Collison, Terry M. Nelson, Chuohao Tang, Amy Ruth Reibman, Jan P. Allebach
  • Publication number: 20180013925
    Abstract: In some examples, a print cartridge includes a memory device comprising quantized coefficients derived from a compression of a difference table including a plurality of difference nodes in which each difference node represents a value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference table, and a plurality of residue nodes in which each residue node represents a value that is a difference of a value of a node of the color table and a value of a corresponding node of the reconstructed difference table.
    Type: Application
    Filed: July 6, 2017
    Publication date: January 11, 2018
    Inventors: Zhenhua Hu, Chuohao Tang, Terry M. Nelson, Mark Q. Shaw, Jan P. Allebach, Amy Ruth Reibman
  • Publication number: 20180013929
    Abstract: In some examples, a print cartridge includes a memory device comprising quantized coefficients derived from a lossy compression, at a selected step size, of a difference color table including a plurality of difference nodes in which each difference node represents a difference value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference color table including a first set of difference nodes each representing a difference value that is within an error threshold at the selected step size, and a second set of difference nodes each representing a difference value that is outside an error threshold at the selected step size. The memory device further comprises corrective information to correct the second set of difference nodes of the reconstructed difference color table.
    Type: Application
    Filed: June 1, 2017
    Publication date: January 11, 2018
    Inventors: Chuohao Tang, Sean Michael Collison, Amy Ruth Reibman, Mark Q. Shaw, Jan P. Allebach, Jay S. Gondek