Structure of a speaker apparatus

Details Structure of a speaker apparatus Structure of a speaker apparatus

1988-07-13

1991-11-19

Isen, Forester W.

Electrical audio signal processing systems and devices

Noise or distortion suppression

Interpolation

381158, 381188, 381205, 181144, 181146, H04R 102

Patent

active

050671596

ABSTRACT:
A speaker apparatus in which a speaker unit having a vibrating plate thereon is housed in a cabinet, an opening defined by the cabinet for radiating a sound generated at a front surface of the vibrating plate of the speaker unit is formed, and a shield plate over a predetermined part of the opening is provided for shielding the sound of a high frequency region in which peaks and/or dips are included due to the sound reflections in the cabinet.

REFERENCES:
patent: 4178473 (1979-12-01), Vermeren
patent: 4357490 (1982-11-01), Dickey
patent: 4493389 (1985-01-01), Del Rosario
patent: 4612530 (1986-09-01), Kurth et al.
patent: 4625829 (1986-12-01), Sirois
patent: 4701951 (1987-10-01), Kash
patent: 4703502 (1987-10-01), Kasai et al.
patent: 4720867 (1988-01-01), Imai et al.
patent: 4790408 (1988-12-01), Adair
WO8501176 Loudspeaker Structure, Wolcott.

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