Patents by Inventor Alan D. Kronisch

Alan D. Kronisch 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 apparatus for controlling a motor
    Patent number: 4622499
    Abstract: An n-phase DC motor is controlled by converting a motor speed command signal generated from a programmed CPU to a motor drive signal and using this motor drive signal to apply DC power to a selected phase of the motor, the amount of applied DC power being a function of the value of the motor speed command signal. Signals representing the position and/or speed of the motor are supplied to the CPU from which the CPU detects speed errors. The speed command signal then is modified to speed up or slow down the motor so as to reduce the detected errors.
    Type: Grant
    Filed: February 27, 1985
    Date of Patent: November 11, 1986
    Assignee: MiniScribe Corporation
    Inventors: John P. Squires, Alan D. Kronisch, John J. Freeman, James J. Touchton