Patents by Inventor Alexander Michael George

Alexander Michael George 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).

  • Multi-band harmonic discrimination for feedback suppression
    Patent number: 9351072
    Abstract: A method and audio signal processor for detecting feedback in an electrical amplification system divides a frequency spectrum into a plurality of frequency bands, classifies a tone present in an incoming audio signal into one of the plurality of frequency bands based on a frequency of the tone, selects a threshold value based on the frequency band into which the tone is classified, and disqualifies the tone from potentially being feedback if an amplitude of the tone is greater than an amplitude of a harmonic of the tone by less than the threshold value. The tone is deemed to be potentially feedback if the amplitude of the tone is greater than an amplitude of a plurality of harmonics of the tone by at least the threshold value.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: May 24, 2016
    Assignee: Bose Corporation
    Inventors: Michael Arthur Siegel, Christopher J. Perkins, Alexander Michael George
  • MULTI-BAND HARMONIC DISCRIMINATION FOR FEEDBACK SUPRESSION
    Publication number: 20150124998
    Abstract: A method and audio signal processor for detecting feedback in an electrical amplification system divides a frequency spectrum into a plurality of frequency bands, classifies a tone present in an incoming audio signal into one of the plurality of frequency bands based on a frequency of the tone, selects a threshold value based on the frequency band into which the tone is classified, and disqualifies the tone from potentially being feedback if an amplitude of the tone is greater than an amplitude of a harmonic of the tone by less than the threshold value. The tone is deemed to be potentially feedback if the amplitude of the tone is greater than an amplitude of a plurality of harmonics of the tone by at least the threshold value.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 7, 2015
    Inventors: Michael Arthur Siegel, Christopher J. Perkins, Alexander Michael George