Acoustics – Sound-modifying means – Intensifying horn
Reexamination Certificate
2007-11-27
2007-11-27
Donovan, Lincoln (Department: 2837)
Acoustics
Sound-modifying means
Intensifying horn
C181S159000, C181S177000, C181S187000, C181S191000
Reexamination Certificate
active
10783705
ABSTRACT:
A loudspeaker horn (11) having a throat end (13) for receiving acoustic power from aligned acoustic power sources (41, 43, 45), an elongated throat (33), and a flared section (17) is provided with grating lobe mitigation fins (27, 29) that extend substantially parallel to the propagation axis of the horn from the throat end toward the mouth end of the horn's flared section. The length of the grating lobe mitigation fins is established in accordance with the degree of suppression of the grating lobes produced by the aligned acoustic power sources that is desired.
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Meyer John D.
Meyer Perrin
Schwenke Roger
Beeson Donald L.
Beeson Skinner Beverly LLP
Donovan Lincoln
Luks Jeremy
Meyer Sound Laboratories Incorporated
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