Speaker and method of outputting acoustic sound
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United States of America Patent
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Nov 3, 2009
Grant Date -
Aug 30, 2007
app pub date -
Feb 8, 2007
filing date -
Feb 9, 2006
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Abstract
A speaker contains a pipe member containing opposed ends and a sounding body that is driven on the basis of an acoustic signal which is applied to the sounding body. The sounding body is arranged on the same axis as that of the pipe member. Sound wave radiated from the sounding body radiates from the opposed ends of the pipe member.
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