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Hands-free Active Noise Canceling Device

  • US 20120029912A1
  • Filed: 07/27/2010
  • Published: 02/02/2012
  • Est. Priority Date: 07/27/2010
  • Status: Abandoned Application
First Claim
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1. A compact active noise cancellation device comprising a hollow housing having a closed end and a wide-open end whereby said wide-open end is adapted to be positioned over a user'"'"'s mouth area, said housing further comprising a loudspeaker that outputs a sound wave that is opposite in phase of said user'"'"'s voice thereby canceling a sound wave inside said housing.

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