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Stepped sound producing module

DC
  • US 7,177,434 B2
  • Filed: 01/18/2002
  • Issued: 02/13/2007
  • Est. Priority Date: 01/18/2002
  • Status: Expired due to Fees
First Claim
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1. A sound module, the sound module comprising:

  • a piezo amplification device;

    a piezoelectric element coupled to the piezo amplification device; and

    an inflatable object attached to said piezo amplification device so as to form a cavity between an interior of the piezo amplification device and the inflatable object, the inflatable object having an interior bounded by walls;

    an electrical circuit electrically coupled to the piezoelectric element and configured to generate audio signals, the piezoelectric element being configured to convert the audio signals into sound that resonates off the walls within the interior of the inflatable object.

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