Speaker system including phase shift such that the composite sou

Details Speaker system including phase shift such that the composite sou Speaker system including phase shift such that the composite sou

1993-04-05

1998-10-27

Chiang, Jack

Electrical audio signal processing systems and devices

Including phase control

381 98, 381 61, H03G 300, H03G 500

Patent

active

058287639

ABSTRACT:
A speaker system for reproducing a high fidelity sound field. In one embodiment, the speaker system includes at least two speakers, one of which is coupled with a phase shifter for shifting the phase of an audio signal in mid- and high-frequency ranges. The phase shifter shifts the phase between .+-.120.degree. and .+-.180.degree.. In another embodiment, the speaker system includes three speakers and the phase shifter shifts the phase of the audio signal applied to two of the speakers from that of the audio signal applied to the third speaker which is a tweeter.

REFERENCES:
patent: 4146745 (1979-03-01), Froeschle et al.
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patent: 4503553 (1985-03-01), Davis
patent: 4817162 (1989-03-01), Kihara
patent: 4873722 (1989-10-01), Tominari
patent: 4908858 (1990-03-01), Ohno
patent: 5033092 (1991-07-01), Sadaie
patent: 5121433 (1992-06-01), Kendall et al.

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