Title:
ACTIVE NOISE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/137448
Kind Code:
A1
Abstract:
Provided is an active noise control device in which the installation position is not required to be limited to the vicinity of the noise source, and in which noise can be reduced over a wide range. An active noise control device (10) for cancelling out sound to be controlled within a desired sound-control region (104), the active noise control device comprising: a plurality of control sound output units (171-17n) for outputting control sound on the basis of a wavefront control signal; and a wavefront controller (9) for outputting the wavefront control signal to each of the control sound output units (171-17n). The wavefront controller (9) generates the wavefront control signal so that a sound synthesized by the control sound outputted from each of the plurality of control sound output units is outputted from an imaginary sound source (11) at a predetermined position in a direction toward the sound-control region (104) and cancels out the sound to be controlled in the sound-control region (104).
Inventors:
MIZUNO KO
Application Number:
PCT/JP2012/002205
Publication Date:
October 11, 2012
Filing Date:
March 29, 2012
Export Citation:
Assignee:
PANASONIC CORP (JP)
MIZUNO KO
MIZUNO KO
International Classes:
H04R1/40; G10K11/178
Foreign References:
| JP2008179979A | 2008-08-07 | |||
| JP2007236005A | 2007-09-13 |
Attorney, Agent or Firm:
NII, Hiromori (JP)
New house Extensive 守 (JP)
New house Extensive 守 (JP)
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Claims: