Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
Reexamination Certificate
2005-03-01
2005-03-01
Le, Huyen (Department: 2643)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having acoustic wave modifying structure
C381S345000, C381S349000, C381S335000, C381S386000, C181S148000, C181S160000
Reexamination Certificate
active
06862360
ABSTRACT:
A speaker system is provided which includes a sound box and a speaker mounted in the sound box. The sound box is divided into a plurality of air chambers, each of which is formed with at least an air dissipating hole connecting the atmosphere of the box and at least an air passing hole connecting at least a neighboring air chamber, so as to generate behind the speaker pressurized air cushions corresponding to each frequency band of the frequency response of the speaker. Meanwhile, upon reaching the air dissipating hole of each air chamber the air cushions are generated depressurized and vanished at an appropriate timing so that formerly air cushions do not interfere with those generated in succession; therefore each frequency band of the frequency response of the speaker is provided with an appropriate and independent pressurized air cushion so that high fidelity sound frequencies can be reproduced.
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Corless Peter F.
Edwards & Angell LLP
Harvey Dionne
Jensen Steven M.
Le Huyen
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