Woofer module for use in a television set

Details Woofer module for use in a television set Woofer module for use in a television set

1992-06-10

1994-11-01

Kuntz, Curtis

Electrical audio signal processing systems and devices

Binaural and stereophonic

Hearing aid

381188, 381205, 381159, 381154, 181153, H04R 500, H04R 2500, H05K 500

Patent

active

053613805

ABSTRACT:
A woofer module is provided for use in a television set, which comprises a hollow enclosure and a woofer accommodated within the enclosure for reproducing a sound of low audible frequency band. The enclosure has a first sound wave passageway extending from a front side of the woofer toward a first open end and a second sound wave passageway extending from rear side of the woofer toward a second open end. The second passageway is divided into an upstream region, a middle expansion region and a downstream region. The upstream region is contiguous to the rear side of the woofer and has a cross-sectional area smaller than that of the expansion region so that an equivalent air mass can be applied to the woofer.

REFERENCES:
patent: 4524846 (1985-06-01), Whitby
patent: 4646349 (1987-02-01), Puls
patent: 4926487 (1990-05-01), Yoshida et al.
patent: 5117463 (1992-05-01), Oyaba et al.
patent: 5119429 (1992-06-01), Chatelain

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