Electrical audio signal processing systems and devices – Binaural and stereophonic – Stereo speaker arrangement
Patent
1998-01-29
1998-12-29
Harvey, Minsun Oh
Electrical audio signal processing systems and devices
Binaural and stereophonic
Stereo speaker arrangement
381 27, 381 86, H04B 100
Patent
active
058548475
ABSTRACT:
A speaker system for use in an automobile vehicle, comprises: pair of side speakers disposed on left and right sides in a front section within the automobile vehicle; a central speaker disposed in a middle position between the two side speakers; a pair of delay circuits connected on two signal lines leading to the side speakers disposed on the left and right sides within the vehicle; an adder connected between the left and right channels to add together the electric signals transmitted from the left and right channels so as to produce a sum signal; and a band pass filter connected on a signal line leading to the central speaker, said band pass filter being constructed and adjusted to eliminate a high frequency signal component. The sum signal fed from the adder is passed through the band pass filter before being applied to the central speaker.
REFERENCES:
patent: 4408095 (1983-10-01), Ariga
patent: 5197100 (1993-03-01), Shiraki
patent: 5325435 (1994-06-01), Data
patent: 5610986 (1997-03-01), Miles
patent: 5710818 (1998-01-01), Yamato
Amano Katsumi
Kumada Satoshi
Matsushita Fumio
Ohta Yoshiki
Saito Keishi
Harvey Minsun Oh
Pioneer Electronic Corp.
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