Noise reduction device

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专利权人:

Hiroyuki Kano;Toshihiro Ezaki;Yoshifumi Asao;Masaaki Higashida;Tsuyoshi Maeda

发明人:

Yoshifumi Asao,Hiroyuki Kano,Masaaki Higashida,Tsuyoshi Maeda,Toshihiro Ezaki

申请号：

US12594385

公开号：

US09090332B2

申请日:

2008.12.11

申请国别(地区):

US

年份:

2015

代理人:

摘要：

A noise reduction device, including a microphone for detecting noise, a noise controller for reversing the phase of noise detected by the microphone based on information outputted from the microphone, and a speaker for outputting sound based on information outputted from the noise controller, is arranged at a seat surrounded by a shell portion having a cavity, wherein a speaker is disposed in the cavity of the shell portion.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/