Distributed mode louspeaker damping oscillations within exciter feet
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United States of America Patent
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Apr 17, 2018
Issued Date -
N/A
app pub date -
Jun 3, 2016
filing date -
Jun 4, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
There is provided a flat panel loudspeaker comprising a resonant panel, an exciter comprising a foot generally cylindrical in shape, coupled to the resonant panel and defining an inner region of the resonant panel. The exciter is drivable to vibrate the resonant panel via the foot, whereby to produce a sound. A stiffness of the resonant panel in the inner region is greater than a stiffness of the resonant panel in a region of the resonant panel outside the inner region. Additionally or alternatively, the flat panel loudspeaker further comprises a damping member in contact with the inner region of the resonant panel and arranged inside the foot to generally brace against the vibration of the resonant panel so as to damp a response of the resonant panel in the inner region to a vibration from the exciter.
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