Audio speaker system for automotive vehicle

Details Audio speaker system for automotive vehicle Audio speaker system for automotive vehicle

1984-10-26

1989-09-12

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Hearing aid

381 86, H04R 502

Patent

active

048667765

ABSTRACT:
An automotive audio speaker system includes a set of main speakers and a set of sub-speakers. The main speakers are distributed about the vehicle cabin so as to focus audio sound near the center thereof. The main speakers reproduce separate right and left audio channels, either singly or in groups, and the sub-speakers reproduce monaural sound resulting from combination of the right and left channels. The sub-speakers are arranged and operated in such a manner that the audio focus is divided and displaced to form a number of acoustic images, each coinciding with a passenger seat. Seat sensors capable of detecting the presence of a passenger in a corresponding seat may be used to control the operation of the sub-speakers, either by adjusting their relative volumes or by distributing the right and/or left audio channels thereamong.

REFERENCES:
patent: 4164625 (1979-08-01), Igeta
patent: 4490842 (1984-12-01), Watanabe
patent: 4509184 (1985-04-01), Yanagawa
patent: 4514599 (1985-04-01), Yanagashima et al.
patent: 4521906 (1985-06-01), Kahn
patent: 4524451 (1985-06-01), Watanabe
patent: 4574391 (1986-03-01), Morishima
patent: 4594729 (1986-06-01), Weingartner

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