Patents by Inventor Fendall Gregory Winston, IV

Fendall Gregory Winston, IV 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).

  • Sideband detector
    Patent number: 4050024
    Abstract: A sideband detector capable of detecting one of two mixing products and disregarding the other is provided. The characteristic of the invention is provided by feeding a sequential logic mixer in each of two channels by the output of a reference source which feeds one channel in phase and delayed to the second. An input signal is also simultaneously applied to both of the mixers. The mixer outputs then feed a sequential logic circuit for detecting the desired sideband.
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: September 20, 1977
    Assignee: Tektronix, Inc.
    Inventor: Fendall Gregory Winston, IV
  • Frequency locking system for a voltage controlled sweep frequency oscillator
    Patent number: 3965438
    Abstract: A system for automatically maintaining the center frequency of a swept voltage controlled oscillator. At a known amplitude of sweep voltage input, a lock pulse is actuated. The oscillator output is divided by a number N and applied simultaneously with the reference signal to a phase and/or frequency detector. The detected signal is applied via a gate under the control of such lock pulse to a memorization unit whose output is used to maintain the center frequency.
    Type: Grant
    Filed: October 29, 1974
    Date of Patent: June 22, 1976
    Assignee: Tektronix, Inc.
    Inventor: Fendall Gregory Winston, IV