Patents by Inventor John Edward Newton

John Edward Newton 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).

  • Scanner repeatability error determining apparatus
    Patent number: T970003
    Abstract: a scanner repeatability error determining apparatus for use with a line scanning apparatus which includes a galvanometer responsive to a complex signal having ramp signal and compensation signal components for driving a line scan mirror. The compensation signal is a function of variations in velocity of the line scan mirror from a desired velocity. The apparatus includes circuitry for defining a predetermined range for the compensation signal and when such compensation signal is outside of this range produces an indication that there is a repeatability error.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: May 2, 1978
    Inventors: John Edward Newton, Mark Alan Simon