Patents by Inventor Chandler A. Johnson, III

Chandler A. Johnson, III 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 for obtaining temporal equity with varying vector locations
    Patent number: 5438995
    Abstract: In a method for obtaining temporal equity of multiple images for ultrasound imaging equipment, a vector set is determined for each of the multiple images, representative of vectors to be aligned. A plurality of independent weights is then calculated for each image based on the vector sets. The plurality of calculated independent weights is used to determine a firing sequence which provides temporal equity of the multiple images.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: August 8, 1995
    Assignee: General Electric Company
    Inventors: Michael J. Washburn, Stephen M. Peshman, Chandler A. Johnson, III
  • D.C. motor control
    Patent number: 4079301
    Abstract: A control circuit for a direct current motor having separately excited armature and field windings and operable in both the constant torque and constant horsepower modes includes a speed control circuit having a transfer characteristic providing an extremely high gain at lower frequencies and a low gain, for example unity, at higher frequencies and further includes means to reduce the low frequency gain when motor operation is switched from the constant torque to the constant horsepower mode.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: March 14, 1978
    Assignee: General Electric Company
    Inventor: Chandler A. Johnson, III
  • DC motor regulator
    Patent number: 3935520
    Abstract: A regulator for a direct current motor including both current limit and speed feedback paths further includes a speed control circuit for controlling a controllable power supply the output of which governs motor speed. The speed control circuit is designed to provide a desired transfer characteristic having extremely high gain at low frequencies while maintaining a substantially unity gain at higher frequencies to thereby enhance the stability of the motor operation throughout a wide range.
    Type: Grant
    Filed: July 24, 1974
    Date of Patent: January 27, 1976
    Assignee: General Electric Company
    Inventor: Chandler A. Johnson, III