Patents Assigned to Bitwave Private Limited
  • Patent number: 7346175
    Abstract: A headset system is proposed including a headset unit to be worn by a user and having two or more microphones, and a base unit in wireless communication with the headset. Signals received from the microphones are processed using a first adaptive filter to enhance a target signal, and then divided and supplied to a second adaptive filter arranged to reduce interference signals and a third filter arranged to reduce noise. The outputs of the second and third filters are combined, and are be subject to further a processing in the frequency domain. The results are transmitted to a speech recognition engine.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: March 18, 2008
    Assignee: Bitwave Private Limited
    Inventors: Siew Kok Hui, Kok Heng Loh, Yean Ming Lau