Patents by Inventor Calvin Ngo

Calvin Ngo 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).

  • Source data interpolation method and apparatus
    Patent number: 6219464
    Abstract: A method of generating an upsampled target pixel positioned between two lines of input source data includes the step of comparing pixels of different lines of the source data in a region surrounding the upsampled target pixel to be generated in at least two different directions. An interpolation direction based on the comparison is selected and interpolations between selected pixels of the source data in the determined interpolation direction are carried out to compute intermediate pixels on a line segment passing through the upsampled target pixel. An interpolation between the intermediate pixels is carried out to generate the upsampled target pixel. An apparatus for performing the method is also disclosed.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: April 17, 2001
    Assignee: Genesis Microchip Inc.
    Inventors: Lance Greggain, Calvin Ngo
  • Source data interpolation method and apparatus
    Patent number: 5991463
    Abstract: A method of generating an upsampled target pixel positioned between two lines of input source data includes the step of comparing pixels of different lines of the source data in a region surrounding the upsampled target pixel to be generated in at least two different directions. An interpolation direction based on the comparison is selected and interpolations between selected pixels of the source data in the determined interpolation direction are carried out to compute intermediate pixels on a line segment passing through the upsampled target pixel. An interpolation between the intermediate pixels is carried out to generate the upsampled target pixel. An apparatus for performing the method is also disclosed.
    Type: Grant
    Filed: November 8, 1995
    Date of Patent: November 23, 1999
    Assignee: Genesis Microchip Inc.
    Inventors: Lance Greggain, Calvin Ngo