Invention Grant
- Patent Title: Active vibratory noise control apparatus
- Patent Title (中): 主动振动噪声控制装置
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Application No.: US12794759Application Date: 2010-06-06
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Publication No.: US08817998B2Publication Date: 2014-08-26
- Inventor: Toshio Inoue
- Applicant: Toshio Inoue
- Applicant Address: JP Tokyo
- Assignee: Honda Motor Co., Ltd.
- Current Assignee: Honda Motor Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Mori & Ward, LLP
- Priority: JP2009-179122 20090731
- Main IPC: G10K11/16
- IPC: G10K11/16 ; H03B29/00

Abstract:
An active vibratory noise control apparatus includes a basic signal generator configured to output a basic sine wave signal and a basic cosine wave signal. An adaptive finite impulse response filter is configured to output a control signal to cancel the vibratory noise. A vibratory noise cancelling device is configured to generate vibratory-noise canceling sound. An error signal detector is configured to output an error signal. A reference signal generator is configured to output a reference signal and corrects the basic cosine wave signal and the basic sine wave signal based on correction values. A buffer is configured to accumulate a number of reference signals corresponding to a number of taps of the adaptive finite impulse response filter. A filter coefficient updating device is configured to sequentially update filter coefficients of the adaptive finite impulse response filter to minimize the error signal.
Public/Granted literature
- US20110026723A1 ACTIVE VIBRATORY NOISE CONTROL APPARATUS Public/Granted day:2011-02-03
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