PARAMETRIC TRANSDUCER HEADPHONES
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United States of America Patent
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app pub date -
Aug 20, 2014
filing date -
Aug 20, 2014
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Abstract
An ultrasonic audio headphone system includes two ultrasonic speakers, each having a backing plate and a flexible layer disposed adjacent the backing plate. The backing plate and the flexible layer are each configured to be electrically coupled to a respective one of a pair of signal lines carrying the audio modulated ultrasonic carrier signal from the amplifier, wherein upon application of the audio modulated ultrasonic carrier signal, the flexible layer is configured to launch a pressure-wave representation of the audio modulated ultrasonic carrier signal into the air.
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