Patents by Inventor J. Keane

J. Keane 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).

  • Compact RF structure for nonreciprocal ferromagnetic resonance coupling
    Patent number: 4179674
    Abstract: Compact, simple, ferromagnetic-filter coupling structures which provide a very high, effective-quality factor Q in the VHF, UHF, and microwave frequency ranges.
    Type: Grant
    Filed: December 5, 1978
    Date of Patent: December 18, 1979
    Assignee: Eaton Corporation
    Inventors: William J. Keane, John A. Mezak
  • Frequency discriminator apparatus
    Patent number: 4127819
    Abstract: A frequency discriminator having a bandwidth variable from a relatively narrow range to a very wide range in which the center frequency is simultaneously tunable over an extremely wide frequency range. The discriminator is insensitive to amplitude variations of the input signal and is capable of demodulating low level signals. The frequency discriminator is particularly useful for microwave frequency applications wherein the basic discriminator element is a ferrimagnetic resonator. The frequency discriminator forms a portion of several preferred embodiments including devices for the frequency control of signal sources, frequency measurement of signal sources, demodulation of frequency modulated signals and frequency tracking control for other ferrimagnetic devices.
    Type: Grant
    Filed: November 13, 1975
    Date of Patent: November 28, 1978
    Inventor: William J. Keane