Vehicle internal noise reduction system

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381 94, G10K 1116

Patent

active

054886678

ABSTRACT:
The vehicle internal noise reduction system characterized in attenuating the internal noises by generating optimum canceling sounds from speakers disposed in the passenger compartment by varying the canceling sounds with a good balance according to vehicle operating conditions as changing rapidly.

REFERENCES:
patent: 4783818 (1988-11-01), Graupe et al.
patent: 5131047 (1992-07-01), Hashimoto et al.
patent: 5222148 (1993-06-01), Yuan
patent: 5325437 (1994-06-01), Doi et al.
patent: 5386472 (1995-01-01), Pfaff et al.
patent: 5388160 (1995-02-01), Hashimoto et al.

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