Patents by Inventor Ronald Hou Kern Tom

Ronald Hou Kern Tom 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).

  • Apparatus, method, and computer program to reduce distortion of scanner restarts
    Patent number: 6369918
    Abstract: An apparatus, method, and computer program for reducing distortion of a scanned image upon a resume after a pause by a scanner. A default phase difference is calculated by the computer program before the scan starts. The default phase difference is based on a phase relationship between a step signal, an integration signal, and a number of backward steps. The default phase difference is used to control the resumption with a relatively small number of circuit elements.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: April 9, 2002
    Assignee: National Semiconductor Corporation
    Inventors: Ronald Hou Kern Tom, Frederick McGuire Hamilton