Patents by Inventor Jincheng Wu

Jincheng Wu 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 ECHO CANCELLER USING MULTI-BAND NONLINEAR PROCESSING
    Publication number: 20090046847
    Abstract: An echo canceller (106) can include a first multi-band filter (152) which receives a first input signal (108) and generates a first plurality of sub-band signals (110, 111, 112), and a second multi-band filter (154) which receives a second input signal (122) and generates a second plurality of sub-band signals (156, 157, 158). The echo canceller also can include a plurality of double talk detectors (168, 169, 170) that each generate a double talk flag (182, 183, 184) based on at least a respective one of the first sub-band signals and a respective one of the second sub-band signals.
    Type: Application
    Filed: August 15, 2007
    Publication date: February 19, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Jincheng Wu, Joel A. Clark