Patents by Inventor John Penhune

John Penhune 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).

  • FREQUENCY DOMAIN ACTIVE NOISE CANCELLATION SYSTEM AND METHOD
    Publication number: 20140314241
    Abstract: A frequency domain active noise cancellation system and method are provided that achieves superior active reduction of offending noise sources. The frequency-domain active noise cancellation identifies and cancels one or more of the strongest relatively narrow frequency bands in the power spectra of the offending sound sources.
    Type: Application
    Filed: August 1, 2013
    Publication date: October 23, 2014
    Applicant: VOR Data Systems, Inc.
    Inventor: John Penhune