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Method and device of noise reduction of earphone

An earphone and noise reduction technology, applied in earpiece/earphone accessories, sensor components, sensors, etc., can solve the problems of high cost, high price, and heavy weight

Inactive Publication Date: 2013-04-03
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of headphones is called earplugs / headphones with active noise reduction function. At present, there are many such earplugs / headphones on the market, but the headphones themselves integrate noise reduction modules, and the cost is relatively high.
In addition, additional batteries are required for power supply, resulting in high price and heavy weight

Method used

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  • Method and device of noise reduction of earphone
  • Method and device of noise reduction of earphone
  • Method and device of noise reduction of earphone

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Embodiment Construction

[0026] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for ease of description, the drawings only show a part but not all of the structure related to the present invention.

[0027] In this embodiment, a method for reducing earphone noise is provided, figure 1 It is a process of a method for noise reduction of headphones according to an embodiment of the present invention, and the process includes the following steps:

[0028] Step S102: The mobile terminal obtains the noise in the environment. Preferably, there are many ways to obtain the noise. For example, the detection can be performed by a microphone. The microphone can be a microphone on a mobile phone or an external microphone. Acquisition is also called detection;

[0029]...

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Abstract

The invention discloses a method and a device of noise reduction of an earphone. The method of the noise reduction of the earphone includes that a mobile terminal obtains environment noise; the mobile terminal generates a signal with the same amplitude and the opposite phase of the noise; and the mobile terminal outputs the signal through the earphone when outputs voice frequency. According to the method and the device of the noise reduction of the earphone, a general earphone can achieve an effect of the noise reduction without being added with a noise reduction module.

Description

Technical field [0001] The present invention relates to the field of mobile communication, and in particular to a method and device for reducing earphone noise. Background technique [0002] In the prior art, there is a mobile phone, which can filter the environmental noise in the sound sent during the call. This technique only filters the transmitted sound, and cannot reduce the noise received by the ears of the mobile phone user. [0003] The noise cancellation method is designed to reduce unwanted environmental sounds by using audio playback devices (ie, headphones). The ambient sound is called the background sound pressure level that occurs at any given location. In order to design a noise cancellation system, a certain sound wave signal must be emitted from the earphone to eliminate environmental noise. Such earphones are called earplugs / headphones with active noise reduction function. At present, there are many such earplugs / headphones on the market, but all the earphones ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00H04R1/10
Inventor 曾元清田原
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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