Vibration-isolating and sound isolating system for vehicle

Details Vibration-isolating and sound isolating system for vehicle Vibration-isolating and sound isolating system for vehicle

2007-06-12

2007-06-12

Pendleton, Brian Tyrone (Department: 2615)

Electrical audio signal processing systems and devices

Acoustical noise or sound cancellation

Within cabin or compartment of vehicle

C381S071900

Reexamination Certificate

active

10620037

ABSTRACT:
An engine is supported on a vehicle body frame through an active vibration-isolating device. The vibration of the engine is prevented from being transmitted to the vehicle body frame by controlling the active vibration-isolating device. A speaker is disposed within a vehicle compartment. The noise is reduced by adaptively controlling the speaker based on a rotational speed of the engine and a noise detected by a microphone disposed within the vehicle compartment. Thus, the vibration and noise characteristics of the vehicle can be improved by a synergic effect of reducing both the vibration and the noise. Further, because the microphone is inexpensive and the speaker for an audio set can be used without any modification, the present invention can be achieved with a low cost.

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patent: 2002-139095 (2002-05-01), None

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