Patents by Inventor Alexander C. Utter

Alexander C. Utter 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).

  • TWO-WAY TIME TRANSFER AND RANGING THAT MEASURES AND COMPENSATES FOR DOPPLER SHIFTS
    Publication number: 20260190056
    Abstract: Two-way time transfer and ranging that measures and compensates for Doppler shifts is provided herein. A first endpoint transmits a request message initializing a dopplerField (DF). Relay node(s) moving relative to the first endpoint receive the request message, measure ingress and egress frequency ratios, increment DF by a difference between these ratios, and transmit the request message containing the incremented DF. A second endpoint receives the request message containing the incremented DF, and generates a reply message containing the incremented DF. The relay node(s) receive the reply message, measure ingress and egress frequency ratios, increment the incremented DF by a difference between these ratios, and transmit the reply message containing the incremented DF. The first endpoint receives the reply message containing the incremented DF, and uses it to calculate a range-rate of components in the mobile network relative to the first endpoint.
    Type: Application
    Filed: January 2, 2025
    Publication date: July 2, 2026
    Applicant: THE AEROSPACE CORPORATION
    Inventor: Alexander C. Utter
  • Amplitude domain circuits and methods for reducing an interference signal that spectrally overlaps a desired signal
    Patent number: 10340962
    Abstract: Under one aspect, a method for reducing interference in a received signal can include splitting a received signal into a first portion and a second portion, the received signal comprising a desired signal and an interference signal that spectrally overlaps the desired signal. The method also can include estimating an amplitude A(t) of the first portion as a function of time. The method also can include suppressing at least a portion of the interference signal in the estimated amplitude A(t) to generate an interference suppressed amplitude A?(t). The method also can include delaying the second portion by an amount of time corresponding to the estimation and suppression. The method also can include multiplying the interference suppressed amplitude A?(t) by the delayed second portion to obtain an output having reduced contribution from the interference signal.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: July 2, 2019
    Assignee: The Aerospace Corporation
    Inventors: Alexander C. Utter, Philip Dafesh, Phillip Brian Hess
  • AMPLITUDE DOMAIN CIRCUITS AND METHODS FOR REDUCING AN INTERFERENCE SIGNAL THAT SPECTRALLY OVERLAPS A DESIRED SIGNAL
    Publication number: 20170324434
    Abstract: Under one aspect, a method for reducing interference in a received signal can include splitting a received signal into a first portion and a second portion, the received signal comprising a desired signal and an interference signal that spectrally overlaps the desired signal. The method also can include estimating an amplitude A(t) of the first portion as a function of time. The method also can include suppressing at least a portion of the interference signal in the estimated amplitude A(t) to generate an interference suppressed amplitude A?(t). The method also can include delaying the second portion by an amount of time corresponding to the estimation and suppression. The method also can include multiplying the interference suppressed amplitude A?(t) by the delayed second portion to obtain an output having reduced contribution from the interference signal.
    Type: Application
    Filed: May 6, 2016
    Publication date: November 9, 2017
    Inventors: Alexander C. Utter, Philip Dafesh, Phillip Brian Hess
  • Signal parameter estimator
    Patent number: 9092371
    Abstract: A signal parameter estimator includes curve fitting of multiple ideal spectral shapes.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: July 28, 2015
    Assignee: The Aerospace Corporation
    Inventors: Alexander C. Utter, Eugene Grayver
  • SIGNAL PARAMETER ESTIMATOR
    Publication number: 20120059613
    Abstract: A signal parameter estimator includes curve fitting of multiple ideal spectral shapes.
    Type: Application
    Filed: September 2, 2010
    Publication date: March 8, 2012
    Inventors: Alexander C. Utter, Eugene Grayver