Patents by Inventor Chunyan Wei

Chunyan Wei 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).

  • Method and apparatus for double-talk detection
    Patent number: 8160238
    Abstract: The present invention discloses a double-talk detection method and apparatus. The method includes: obtaining a far-end signal frame and a near-end signal frame; and detecting a talk state according to a spectrum difference between the far-end signal frame and the near-end signal frame. The apparatus includes: an obtaining module, adapted to obtain a far-end signal frame and a near-end signal frame; and a spectrum detecting module, adapted to detect a talk state according to a spectrum difference between the far-end signal frame and the near-end signal frame. With the present invention, the talk state is detected according to the spectrum difference between the far-end signal and the near-end signal. Even if nonlinear distortion exists, the precision of detection is not impacted, whereas, the greater the distortion is, the more precise the detection result and the better the detection performance will be.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: April 17, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Rong Cheng, Chongyan Zhang, Chunyan Wei
  • Method and Apparatus for Double-Talk Detection
    Publication number: 20100183140
    Abstract: The present invention discloses a double-talk detection method and apparatus. The method includes: obtaining a far-end signal frame and a near-end signal frame; and detecting a talk state according to a spectrum difference between the far-end signal frame and the near-end signal frame. The apparatus includes: an obtaining module, adapted to obtain a far-end signal frame and a near-end signal frame; and a spectrum detecting module, adapted to detect a talk state according to a spectrum difference between the far-end signal frame and the near-end signal frame. With the present invention, the talk state is detected according to the spectrum difference between the far-end signal and the near-end signal. Even if nonlinear distortion exists, the precision of detection is not impacted, whereas, the greater the distortion is, the more precise the detection result and the better the detection performance will be.
    Type: Application
    Filed: October 12, 2009
    Publication date: July 22, 2010
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Rong CHENG, Chongyan ZHANG, Chunyan WEI