Patents by Inventor Philip D A Collins

Philip D A Collins 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).

  • Methods and systems for screening a continuous-tone image to produce an output image to be printed on a curved surface
    Patent number: 11463603
    Abstract: A method of screening a continuous-tone image is configured to produce an output image to be printed on a surface. The continuous-tone image comprises a plurality of pixels having respective corresponding intended print locations. The method includes selecting a first sequence comprising a subset of the plurality of intended print locations, the first sequence being selected based on properties of the plurality of intended print locations. For each intended print location in the first sequence, the method also includes identifying the corresponding pixel in the continuous-tone image to obtain a second sequence for an error diffusion process comprising the identified corresponding pixels in the continuous-tone image.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: October 4, 2022
    Assignee: Global Inkjet Systems Limited
    Inventors: Philip D A Collins, Nicholas Campbell Geddes
  • METHODS AND SYSTEMS FOR SCREENING IMAGES
    Publication number: 20220051062
    Abstract: A method of screening a continuous-tone image is configured to produce an output image to be printed on a surface. The continuous-tone image comprises a plurality of pixels having respective corresponding intended print locations. The method includes selecting a first sequence comprising a subset of the plurality of intended print locations, the first sequence being selected based on properties of the plurality of intended print locations. For each intended print location in the first sequence, the method also includes identifying the corresponding pixel in the continuous-tone image to obtain a second sequence for an error diffusion process comprising the identified corresponding pixels in the continuous-tone image.
    Type: Application
    Filed: September 12, 2019
    Publication date: February 17, 2022
    Applicant: Global Inkjet Systems Limited
    Inventors: Philip D A Collins, Nicholas Campbell Geddes