Patents by Inventor Terry A. Aultman

Terry A. Aultman 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).

  • Patent number: 6208594
    Abstract: A more linear duty cycle modulator is made by converting the sine wave bias into a triangle wave bias utilizing a sample and hold circuit as the base band signal is added; on readout, low pass filtering of the high frequency content of the duty cycle modulated waveform, the base band signal is recovered at full amplitude as if saturation recording was being utilized. In a further preferred approach, quadature amplitude modulation and demodulation is utilized.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: March 27, 2001
    Assignee: Seagate Technology LLC
    Inventors: William D. Huber, Robert F. Smith, Terry A. Aultman, John C. Kuklewicz