Patents by Inventor Ofer SHAHEN TOV

Ofer SHAHEN TOV 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).

  • SYSTEM AND METHOD FOR VOICE ACTIVITY DETECTION
    Publication number: 20210295862
    Abstract: In a system and method for voice activity detection (VAD) including: obtaining audio frames from a multi-microphone array; calculating steered response power (SRP) values of the audio frames; calculating entropy levels based on the SRP values; detecting a sequence of audio frames in which the entropy levels are substantially constant across the sequence of frames and denoting an entropy level of the sequence as a background entropy; identifying an incoming audio frame as containing voice activity if the difference between a level of entropy of the current audio frame and the background entropy is larger than a first threshold, and as not containing voice activity otherwise.
    Type: Application
    Filed: June 7, 2021
    Publication date: September 23, 2021
    Applicant: Ceva D.S.P. Ltd.
    Inventors: Ofer SHAHEN TOV, Ofer SCHWARTZ, Aviv DAVID
  • System and method for voice activity detection
    Patent number: 11062727
    Abstract: In a system and method for voice activity detection (VAD) including: obtaining audio frames from a multi-microphone array; calculating steered response power (SRP) values of the audio frames; calculating entropy levels based on the SRP values; detecting a sequence of audio frames in which the entropy levels are substantially constant across the sequence of frames and denoting an entropy level of the sequence as a background entropy; identifying an incoming audio frame as containing voice activity if the difference between a level of entropy of the current audio frame and the background entropy is larger than a first threshold, and as not containing voice activity otherwise.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: July 13, 2021
    Assignee: CEVA D.S.P LTD.
    Inventors: Ofer Shahen Tov, Ofer Schwartz, Aviv David
  • SYSTEM AND METHOD FOR VOICE ACTIVITY DETECTION
    Publication number: 20190385635
    Abstract: In a system and method for voice activity detection (VAD) including: obtaining audio frames from a multi-microphone array; calculating steered response power (SRP) values of the audio frames; calculating entropy levels based on the SRP values; detecting a sequence of audio frames in which the entropy levels are substantially constant across the sequence of frames and denoting an entropy level of the sequence as a background entropy; identifying an incoming audio frame as containing voice activity if the difference between a level of entropy of the current audio frame and the background entropy is larger than a first threshold, and as not containing voice activity otherwise.
    Type: Application
    Filed: June 10, 2019
    Publication date: December 19, 2019
    Applicant: Ceva D.S.P. Ltd.
    Inventors: Ofer SHAHEN TOV, Ofer SCHWARTZ, Aviv DAVID