发明公开
- 专利标题： NOISE REDUCTION DEVICE, NOISE REDUCTION SYSTEM, AND SOUND FIELD CONTROLLING METHOD
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申请号： EP19186931.2申请日： 2019-07-18
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公开(公告)号： EP3627492A1公开(公告)日： 2020-03-25
- 发明人: KUBOTA, Kenichi , YAMAGUCHI, Takahiro , ARAKI, Junji , ABE, Satoshi
- 申请人： Panasonic Intellectual Property Management Co., Ltd.
- 申请人地址： 1-61, Shiromi 2-chome Chuo-ku Osaka-shi, Osaka 540-6207 JP
- 专利权人： Panasonic Intellectual Property Management Co., Ltd.
- 当前专利权人： Panasonic Intellectual Property Management Co., Ltd.
- 当前专利权人地址： 1-61, Shiromi 2-chome Chuo-ku Osaka-shi, Osaka 540-6207 JP
- 代理机构： Grünecker Patent- und Rechtsanwälte PartG mbB
- 优先权： US201862734260P 20180921
- 主分类号： G10K11/178
- IPC分类号： G10K11/178
摘要：
In the noise reduction device (530), the sound receiver (531) receives a noise signal acquired from the microphone (520). The sound source input unit (537) receives an input of a sound source signal from a sound source. The sound adjuster (53A) changes the intensity of the sound source signal relative to the intensity of the noise signal. The control sound generator (532) generates a control sound signal that reduces the noise signal. The control unit (533) controls the change of the intensity of the sound source signal and the generation of the control sound signal. The sound output (560) outputs the control sound signal to the speaker (540). The sound output (560) outputs to the speaker (540) the sound source signal at the intensity changed by the sound adjuster (53A).
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