Patents by Inventor Kevin E. McClain

Kevin E. McClain 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).

  • Oscillator free run frequency setting by data bus control
    Patent number: 5486866
    Abstract: A free running frequency alignment method in a video display having a sync generator comprising a first oscillator having a first frequency and a second oscillator having a second frequency. The first oscillator is phase modulated by the second oscillator which has a free running frequency different from a standard frequency. The free running frequency of the first oscillator is to be controllably aligned to the standard frequency by a method comprising the steps of applying a frequency determining initial control value to the first oscillator and measuring an average free running frequency responsive to the initial control value. An absolute difference frequency is calculated between the average frequency and the standard frequency. The absolute difference frequency is tested for a frequency value less than a predetermined value which signifies an aligned condition. If the difference frequency is less than the predetermined value the alignment is complete.
    Type: Grant
    Filed: June 21, 1994
    Date of Patent: January 23, 1996
    Assignee: Thomson Consumer Electronics, Inc.
    Inventors: Kenneth J. Helfrich, Joseph C. Stephens, Kevin E. McClain, Brian Lee