Electroacoustic novelties
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United States of America Patent
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May 19, 1992
Grant Date -
N/A
app pub date -
Oct 7, 1988
filing date -
Oct 7, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Electroacoustic novelties are disclosed having a piezoelectric polymer film which functions as a speaker or microphone. The novelties include flags, banners, posters or articles of headwear. The piezoelectric polymer film may be attached to a portion of the flexible substrate forming the novelty, or it may be used as an integral part of the novelty structure. An audio output or recording device is electrically coupled to the piezoelectric polymer film. Both the piezoelectric polymer film and the electrodes may be transparent so that the adjoining portion of the novelty is visible.
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