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Active noise cancellation system
专利权人:
Wolfson Microelectronics plc
发明人:
Julian Penketh,Abid Rashid
申请号:
US13796120
公开号:
US09020157B2
申请日:
2013.03.12
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A noise cancellation system generates a noise cancellation signal from a signal representing ambient noise by signal processing. The signal processing applies a controllable gain value, and includes a high pass filter with a controllable cut-off frequency. A control block detects a wind amplitude. The cut-off frequency of the high pass filter is controlled based on the detected wind amplitude. A low pass function is applied to the detected wind amplitude, and the controllable gain is adjusted based on the output of the low pass function.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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