Title:
NOISE CANCEL SYSTEM
Document Type and Number:
Japanese Patent JP3590096
Kind Code:
B2
Abstract:
PURPOSE: To prevent the enlargement and the cost increase of a system by providing noise cancel processing parts by only the number of individual noise sources even when plural detection sensors exist.
CONSTITUTION: Signals outputted from plural detection sensors 101a, 101b are made a white color with white color making filters 102a, 102b by a self recurrence model respectively, and white color making signals outputted from respective white color making filters are synthesized, and the synthesized signal is inputted to an adaptive signal processing part 104 as a reference signal, and the adaptive signal processing part outputs a noise cancel signal so as to cancel a noise, and a noise cancel sound is outputted from a speaker 105.
Inventors:
Seiichi Akiu
Nozomi Saito
Nozomi Saito
Application Number:
JP15224194A
Publication Date:
November 17, 2004
Filing Date:
July 04, 1994
Export Citation:
Assignee:
Alpine Electronics Co., Ltd.
International Classes:
B60R11/02; F01N1/00; G10K11/178; H03H21/00; (IPC1-7): G10K11/178; B60R11/02; F01N1/00; H03H21/00
Domestic Patent References:
| JP62190935A | ||||
| JP5087619A | ||||
| JP61086800U | ||||
| JP4043799A | ||||
| JP5216485A | ||||
| JP5145378A | ||||
| JP59072295A | ||||
| JP2280074A | ||||
| JP58169046A | ||||
| JP7160279A |
Attorney, Agent or Firm:
Chimitsu Saito
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