Patents by Inventor Alexander McElroy

Alexander McElroy 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).

  • Method and system for optimizing cathode output for aging a cathode ray tube during manufacture
    Patent number: 5977711
    Abstract: The present invention relates to a method and system for optimizing the output of at least two electron guns in a cathode ray tube for aging the cathode ray tube during manufacture. The system comprises at least two electron guns located in the cathode ray tube and a memory configured to store an offset value that is representative of a difference between a maximum output level and a detected output level for each of the electron guns. The system further comprises a processor coupled to the memory. The processor generates a first scaled signal by adding a first signal representative of an input voltage corresponding to the detected output level of the first electron gun and an offset signal representative of the offset value, and a second scaled signal by adding a second signal representative of an input voltage corresponding to the detected output level of the second electron gun and the offset signal.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: November 2, 1999
    Assignees: Sony Corporation, Sony Electronics, Inc.
    Inventors: Vincent Van Du, Hiroyuki Nakazono, Alexander McElroy