Acoustics – Sound-modifying means – Intensifying horn
Reexamination Certificate
2008-04-22
2009-12-15
San Martin, Edgardo (Department: 2832)
Acoustics
Sound-modifying means
Intensifying horn
C181S185000, C381S340000
Reexamination Certificate
active
07631724
ABSTRACT:
A sound-wave path-length correcting structure for a speaker system includes a sound source and a horn. The horn has a sound-wave path-length correcting throat portion. The sound-wave path-length correcting throat portion corrects a sound-wave path-length of a sound wave input from an inlet opening thereof in the sound path, and emits the sound wave from an outlet opening thereof. The sound path is defined by a first side surface with a concave curved surface and a second side surface with a convex curved surface that face each other with a space, and a third side surface and a fourth side surface that face each other with a space. The third side surface and the fourth side surface are formed so that their surfaces gradually widen as the surfaces advance from the inlet opening to the outlet opening of the sound-wave path-length correcting throat portion.
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Kidney Jonathan A.
Martin Edgardo San
Meyer Jerald L.
The Nath Law Group
Victor Company of Japan , Limited
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