Voice Activity Detection With Capacitive Touch Sense

  • US 20090252351A1
  • Filed: 04/02/2008
  • Published: 10/08/2009
  • Est. Priority Date: 04/02/2008
  • Status: Active Grant
First Claim
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1. A voice activity detection apparatus comprising:

  • a capacitive sensor providing a capacitive sensor output signal, wherein the capacitive sensor detects whether the capacitive sensor is in contact with a user skin;

    a voice activity detector sensor providing a voice activity detector sensor output signal, wherein the voice activity detector sensor detects vibration of human tissue associated with user speech; and

    a processor which receives the capacitive sensor output signal and the voice activity detector sensor output signal, wherein the voice activity detector sensor output signal is processed to determine a voice activity status only if the capacitive sensor output signal indicates that the capacitive sensor is in contact with the user skin.

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