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Patent Searching and Data


Title:
REFLECTION TYPE SPEAKER SYSTEM
Document Type and Number:
Japanese Patent JP3358836
Kind Code:
B2
Abstract:

PURPOSE: To provide the speaker system with excellent directivity and radiation efficiency.
CONSTITUTION: A frame 5 opened for a prescribed angle in the horizontal direction is arranged above a diaphragm 3 of a speaker 1 and a reflecting member 6 is arranged on an upper surface in the frame 5 and a sound wave emitted from the diaphragm 3 of the speaker 1 is diffused by the reflecting member 6 so as to reduce a change in the directivity, and the shape of the reflecting member 6 is made asymmetrical on the boundary of a center line, then the sound wave is emitted efficiently only in a specific direction while the interference of the sound wave generated in an inner space among the speaker diaphragm 3, a frame inner wall 7 and the reflecting member 6 is prevented.


Inventors:
Jun Yamago
Application Number:
JP34690792A
Publication Date:
December 24, 2002
Filing Date:
December 25, 1992
Export Citation:
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Assignee:
Toshiba Corporation
International Classes:
H04R1/34; (IPC1-7): H04R1/34
Domestic Patent References:
JP61264896A
JP4220898A
JP63136493U
Attorney, Agent or Firm:
Susumu Ito