Title:
ANTIPHASE-WAVE MUFFLER
Document Type and Number:
WIPO Patent Application WO/2017/028291
Kind Code:
A1
Abstract:
Provided is an antiphase-wave muffler, comprising: a noise collector, a data processor, a power amplifier, and a speaker. The antiphase-wave muffler collects a noise signal generated from a noise source, and generates an inverted signal according to the collected noise signal, wherein a waveform of the inverted signal and a waveform of the noise signal have the same frequency, the same amplitude, and a phase difference of 180°. After combining the noise signal and the inverted signal, phase cancellation occurs to ideally realize an almost silent state since the signals have the same frequency, inverted phases and approximate power levels, thereby achieving noise reduction. The antiphase-wave muffler actively reduces noise, improves living quality, has a low cost, is easily implemented, facilitates promotion, and has an advantageous application value.
Inventors:
HAN XINGFENG (CN)
Application Number:
PCT/CN2015/087585
Publication Date:
February 23, 2017
Filing Date:
August 20, 2015
Export Citation:
Assignee:
HAN XINGFENG (CN)
International Classes:
G10K11/178
Foreign References:
| CN101211558A | 2008-07-02 | |||
| CN103077703A | 2013-05-01 | |||
| CN101246684A | 2008-08-20 | |||
| US20030052807A1 | 2003-03-20 |
Other References:
ZHANG, KE ET AL.: "The Application and the Systematic Realization of the Technology of the Reduction of Noise with Source", JOURNAL OF MECHANICAL & ELECTRICAL ENGINEERING, vol. 17, no. 3, 30 May 2000 (2000-05-30), pages 27, 28 and 102, ISSN: 1001-4551
Attorney, Agent or Firm:
SHENZHEN KINDWALF INTELLECTUAL PROPERTY FIRM (CN)
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