Speaker system with a three-dimensional spiral sound passage

Details Speaker system with a three-dimensional spiral sound passage Speaker system with a three-dimensional spiral sound passage

1999-02-08

2000-06-20

Le, Huyen

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having acoustic wave modifying structure

381341, 381350, 181145, 181153, H04R 2500

Patent

active

060786760

ABSTRACT:
A compact speaker system is capable of reproducing a heavy bass sound with a superior transition characteristic. A sound radiated from a speaker unit passes through a three-dimensional spiral sound passage formed by a coaxial dual-tube structure provided in front of the speaker unit. In the coaxial dual-tube structure, a spiral partition plate is provided to bridge a gap between an outer tube and an inner tube so as to form the spiral sound passage.

REFERENCES:
patent: 2858377 (1958-10-01), Levy
patent: 3730291 (1973-05-01), Goeckel
patent: 3923124 (1975-12-01), Hancock
patent: 4317009 (1982-02-01), Shintaku
patent: 4550229 (1985-10-01), Hwang
patent: 4655315 (1987-04-01), Saville
patent: 5187333 (1993-02-01), Adair
patent: 5824969 (1998-10-01), Takenaka

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