Patents by Inventor Steve Potts

Steve Potts 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).

  • Far field noise suppression for telephony devices
    Patent number: 8989815
    Abstract: Noise suppression systems and methods suppress far field noise in a microphone signal. A telephony system includes a main microphone and a reference microphone. In one example, the main microphone and the reference microphone can be located in the same device. In another example, the main microphone and the reference microphone can be located in two separate devices. A DSP can use the reference microphone signal to carry out suppression of far field noise in the main microphone signal. In one approach the DSP can determine an estimate of far field noise in the main microphone signal based on a noise estimate of the reference microphone signal and a reference and main microphone coupling estimate, and then subtract the far field noise estimate from the main microphone signal. Alternatively, the DSP can suppress the main microphone signal if it determines that a local talker is inactive.
    Type: Grant
    Filed: November 24, 2012
    Date of Patent: March 24, 2015
    Assignee: Polycom, Inc.
    Inventors: Kwan K. Truong, Peter Chu, Steve Potts, Erwin Goesnar
  • FAR FIELD NOISE SUPPRESSION FOR TELEPHONY DEVICES
    Publication number: 20140148224
    Abstract: Noise suppression systems and methods suppress far field noise in a microphone signal. A telephony system includes a main microphone and a reference microphone. In one example, the main microphone and the reference microphone can be located in the same device. In another example, the main microphone and the reference microphone can be located in two separate devices. A DSP can use the reference microphone signal to carry out suppression of far field noise in the main microphone signal. In one approach the DSP can determine an estimate of far field noise in the main microphone signal based on a noise estimate of the reference microphone signal and a reference and main microphone coupling estimate, and then subtract the far field noise estimate from the main microphone signal. Alternatively, the DSP can suppress the main microphone signal if it determines that a local talker is inactive.
    Type: Application
    Filed: November 24, 2012
    Publication date: May 29, 2014
    Applicant: POLYCOM, INC.
    Inventors: Kwan K. Truong, Peter Chu, Steve Potts, Erwin Goesnar