ACOUSTIC WAVEGUIDE AND ELECTROACOUSTIC SYSTEM INCORPORATING SAME
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United States of America Patent
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Issued Date -
Jun 5, 2008
app pub date -
Nov 14, 2007
filing date -
Nov 30, 2006
priority date (Note) -
Abandoned
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Abstract
An acoustic waveguide includes an internally hollow primary body provided with an opening for an incoming acoustic radiation and an outlet opening for diffusing the radiation to the outside of said guide. The primary body defines an acoustic flared conduit for propagating the radiation between the inlet opening and the outlet opening. The waveguide further includes a plurality of acoustic discontinuity elements inside the acoustic conduit between the inlet opening and the outlet opening, and which are operative to interfere with the radiation propagating inside the acoustic conduit. The plurality of acoustic discontinuity elements include an array of spaced apart pins transverse to the acoustic conduit.
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