Patents by Inventor River YUAN

River YUAN 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).

  • Acoustic feedback canceller
    Patent number: 10178486
    Abstract: In embodiments of this invention howling sounds are removed without disturbing speech and music. Microphone signals are converted to the frequency domain where howling frequencies are detected and estimated using howling to noise ratios. A notch filter adaptively designed for the howling frequency is applied to remove the howling.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: January 8, 2019
    Assignee: Creative Technology Ltd
    Inventors: River Yuan, Steve Verity, Ian Minett, Robert Ridder
  • ACOUSTIC FEEDBACK CANCELLER
    Publication number: 20160157037
    Abstract: In embodiments of this invention howling sounds are removed without disturbing speech and music. Microphone signals are converted to the frequency domain where howling frequencies are detected and estimated using howling to noise ratios. A notch filter adaptively designed for the howling frequency is applied to remove the howling.
    Type: Application
    Filed: June 19, 2014
    Publication date: June 2, 2016
    Applicant: Creative Technology Ltd
    Inventors: Steve VERITY, River YUAN, Ian MINETT, Robert RIDDER