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Noise reduction earphone interface structure

A technology of noise-cancelling earphones and earphones, applied in the direction of earpieces/earphone accessories, etc.

Active Publication Date: 2014-03-12
CHIPHOMER TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Some products will make the power supply 12 on the controller of the earphone cable of the earphone 9 used, the weight of the earphone 9 used will not increase, but the inconvenience of the external power supply 12 battery life and weight still exist

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0047] Such as figure 1 As shown, the noise reduction earphone interface architecture of the present invention includes: environmental noise receiver 1, speaker 2, noise reduction chip 3, earphone end microphone 4, earphone end control switch 5, device end control switch 6, and device end audio interface 7 , earphone end audio interface 8, equipment output audio signal module 11, power supply 12 and earphone microphone output interface 13, wherein: the power input end of noise reduction chip 3, the environment noise receiving end, output end and audio frequency input end are controlled with earphone end respectively The switch 5, the environmental noise receiver 1, the speaker 2 are electrically connected to the earphone end audio interface 8, the control end of the earphone end control switch 5 and the earphone microphone input end are respectively electrically connected to the earphone end audio interface 8 and the earphone end microphone 4, and the device end The audio inte...

Embodiment 2

[0065] The noise reduction earphone interface architecture of the present invention includes: an environmental noise receiver 1, a speaker 2, a noise reduction chip 3, an earphone end microphone 4, an earphone end control switch 5, an equipment end control switch 6, an equipment output audio signal module 11, an earphone Microphone output interface 13, equipment end audio interface 7, earphone end audio interface 8 and power supply 12, wherein: earphone end control switch 5 is electrically connected with environmental noise receiver 1, earphone end microphone 4 and earphone end audio interface 8 respectively, earphone end The audio interface 8 is electrically connected to the audio input end of the loudspeaker 2, and the audio input end, the ambient noise receiving end, the output end and the power input end of the noise reduction chip 3 are respectively connected to the equipment output audio signal module 11, the equipment end control switch 6, and the equipment end. Audio in...

Embodiment 3

[0083] The noise reduction earphone interface architecture of the present invention includes: noise reduction chip 3, speaker 2, earphone end microphone 4, device end control switch 6, device end audio interface 7, earphone end audio interface 8, device output audio signal module 11, power supply 12 and earphone microphone output interface 13, wherein: earphone end audio interface 8 is electrically connected with earphone end microphone 4 and loudspeaker 2 respectively, and the audio frequency input end, ambient noise receiving end, output end and power input end of noise reduction chip 3 are respectively connected with equipment output The audio signal module 11, the device-side control switch 6, the device-side audio interface 7 are electrically connected to the power supply 12, and the device-side control switch 6 is electrically connected to the device-side audio interface 7, the noise reduction chip 3 and the earphone microphone output interface 13 respectively. During the...

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Abstract

The invention relates to a noise reduction earphone interface structure in the technical field of equipment noise reduction. The noise reduction earphone interface structure comprises a noise reduction chip, a loudspeaker, an earphone-side microphone, a device-side control switch, a device-side audio interface and an earphone-side audio interface. The noise reduction earphone interface structure solves the problems of large earphone volume, heavy weight and limited endurance caused by an external power supply of a noise reduction earphone.

Description

technical field [0001] The present invention relates to a structure in the technical field of equipment noise reduction, in particular to a structure of a noise reduction earphone interface. Background technique [0002] The existing headphone interface architecture for mobile phone noise reduction collects environmental noise through the environmental noise receiver 1 placed at the earphone end, analyzes and processes the environmental noise through the noise reduction chip 3, and outputs the processed noise and audio signal together to horn 2. The sound heard by the human ear is divided into three types: audio signal, processed noise and environmental noise. Since the processed noise is the reverse signal of the environmental noise, the two noises can cancel each other out, and what the human ear hears is mainly the audio signal, and the noise is suppressed to a large extent. [0003] In the existing structure with noise reduction function, the earphone 9 used is provide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/10
Inventor 吴珂白建雄王传芳
Owner CHIPHOMER TECH SHANGHAI
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