Acoustics – Diaphragm and enclosure – With horn
Reexamination Certificate
2008-07-01
2008-07-01
Chin, Vivian (Department: 2615)
Acoustics
Diaphragm and enclosure
With horn
C381S337000, C381S338000, C381S098000, C381S340000, C381S099000, C181S144000, C181S159000, C181S187000, C181S192000, C181S163000, C181S145000
Reexamination Certificate
active
07392880
ABSTRACT:
A new approach has been developed to combine mid-range and high frequency sound into the throat of a horn designed for sound reinforcement. An acoustic low pass filter element is interposed between the lower frequency passage and the higher frequency passage, so that a smooth combination of the two frequency bands is achieved at the entrance to the horn bell. Thus, each frequency band has nearly identical dispersion, and the two sources have equal delay.
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Chin Vivian
Faulk Devona
Gibson Guitar Corp.
Stroock & Stroock & Lavan LLP
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