Horn-loaded compression driver system

Details Horn-loaded compression driver system Horn-loaded compression driver system

2006-05-02

2006-05-02

Ni, Suhan (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having acoustic wave modifying structure

C381S339000, C381S340000

Reexamination Certificate

active

07039211

ABSTRACT:
A horn-loaded compression driver or a loudspeaker has a phasing plug with multiple slots and a common annular chamber. The slots extend from an inlet side to the common annular chamber, which extends to an outlet side. Each slot has a path length extending to a common focal point in the common annular chamber. The common focal point has a common path length extending to the outlet side. The phasing plug provides an approximately flat acoustic wave front from the compression driver to the horn.

REFERENCES:
patent: 2183528 (1939-12-01), Blackburn
patent: 4050541 (1977-09-01), Henricksen
patent: 4157741 (1979-06-01), Goldwater
patent: 4525604 (1985-06-01), Frye
patent: 4628155 (1986-12-01), Robineau et al.
patent: 4975965 (1990-12-01), Adamson
patent: 5117462 (1992-05-01), Bie
Smith, Bob H., “An Investigation of the Air Chamber of Horn Type Loudspeakers,”The Journal of The Acoustical Society of America, vol. 25, No. 2, Mar. 1953, pp. 305-312.

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