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Bioacoustic device

  • US 20040052394A1
  • Filed: 09/23/2003
  • Published: 03/18/2004
  • Est. Priority Date: 09/14/2000
  • Status: Abandoned Application
First Claim
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1. An acoustic device comprising a cone whose diameter ranges between 5 and 10 cm at its widest, of depth between 5 and 15 mm, with a circular field effect transistor microphone of diameter between 0.5 and 2 mm situated at the pointed end of the cone.

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