Patents Examined by Vivian Chinq
  • Feedback reduction system
    Patent number: 8175290
    Abstract: A feedback reduction system adaptively processes a microphone signal. An adaptive feedback suppression filter circuit processes the microphone signal, and an adaptive feedback compensation filter circuit further processes the microphone signal. The adaptive feedback suppression filter circuit processes the signal based upon output from the adaptive filter compensation filter circuit.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: May 8, 2012
    Assignee: Nuance Communications, Inc.
    Inventors: Tim Haulick, Gerhard Uwe Schmidt, Harald Lenhardt