Sound generator: a piezoelectric buzzer on a flexible, tensioned surface of an inflatable object
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United States of America Patent
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Jun 23, 2009
Grant Date -
Mar 17, 2005
app pub date -
Oct 29, 2004
filing date -
Dec 31, 1998
priority date (Note) -
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Abstract
A sound generator and method of projecting sound that includes a piezoelectric buzzer secured to a tensioned, flexible surface of an inflatable object, the surface being under tension in response to variations of pressure within the object. The sound generator includes a sound source and a piezoelectric buzzer electrically connected with each other so that the sound source generates signals, the piezoelectric buzzer converts the signals into sounds and the tensioned, flexible surface amplifies the sounds.
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