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US 8,577,076 B2Granted
Speaker device
AssigneeSony Corporation
InventorsYoshio Ohashi, Nobukazu Suzuki
Life of this patent
Estimating the term…
Abstract
A speaker device includes: an acoustic diaphragm having a given shape and made of a material having physical anisotropy; and an excitation means attached to the acoustic diaphragm for exciting vibration components in consideration of a direction corresponding to the physical anisotropy.
Claims7
A speaker device comprising:
- an acoustic diaphragm having a given shape and made of a material having physical anisotropy;
- and an excitation means attached to the acoustic diaphragm for exciting vibration components in consideration of a direction corresponding to the physical anisotropy wherein the acoustic diaphragm has a conical trapezoid shape, and
- wherein the acoustic diaphragm has a through hole at a center of the conical trapezoid shape such that the through hole extends from a top of the acoustic diaphragm to a bottom thereof so as to pierce through the center of the conical trapezoid shape, where in the through hole functions as a bass reflex port through a duct provided at the side wall of the acoustic diaphragm with respect to the internal space.
Dependencies are inferred from the claim text.