Patents by Inventor Robert J. Whitinger

Robert J. Whitinger 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).

  • Arbitrary drive for magnetic field waveform control
    Patent number: 4400809
    Abstract: Disclosed is a method and apparatus for digital implementation and closed loop feedback of magnetic field waveforms utilizing three channels of a four channel incrementally programmable voltage source to drive field coils in each of three spatial axes, respectively. A fourth channel is utilized for signal conditioning of an output signal from a magnetic bubble memory undergoing test by injecting inverted noise to maximize the signal-to-noise ratio.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: August 23, 1983
    Assignee: Texas Instruments Incorporated
    Inventor: Robert J. Whitinger