Patent ID: 8160266

Claim:
An active vibratory noise control apparatus comprising: an audio device having a speaker for outputting a reproduced sound; and an active vibratory noise control unit for generating a canceling signal to reduce vibratory noise in a passenger compartment of a vehicle and outputting the canceling signal to said speaker; said active vibratory noise control unit being connected to said audio device selected from a plurality of types of audio devices having different speaker or amplifier characteristics, said audio device including a control signal generating means for generating a control signal corresponding to the type of said audio device to said active vibratory control unit, wherein: said active vibratory noise control unit further comprises: a basic signal generator means for outputting a basic signal having a frequency selected from frequencies of vibratory noise generated by a vibratory noise source; an adaptive filter for outputting the cancelling signal based on said basic signal in order to cancel vibratory noise in the passenger compartment; an error signal detecting means for detecting vibratory noise in the passenger compartment and outputting an error signal representing the detected vibratory noise; a reference signal generating means for generating a reference signal by correcting said basic signal with a corrective value, wherein said reference signal generating means selectively reads the corrective value from a plurality of stored corrective values depending on the control signal received from said audio device, the corrective value being based on signal transfer characteristics corresponding to the type of audio device associated with the control signal; and a filter coefficient updating means for sequentially updating filter coefficients of said adaptive filter to minimize said error signal based on said error signal and said reference signal.