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Noise Canceling Headphone Interface Architecture

A technology for noise reduction earphones and earphones, which is applied in the direction of earpiece/earphone accessories, etc.

Active Publication Date: 2011-12-21
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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  • Noise Canceling Headphone Interface Architecture
  • Noise Canceling Headphone Interface Architecture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] like figure 1 As shown, the noise reduction headphone interface structure of the present invention includes: an environmental noise receiver 1, a speaker 2, a noise reduction chip 3, a headphone end microphone 4, a headphone end control switch 5, a device end control switch 6, and a device end audio interface 7 , headphone end audio interface 8, device output audio signal module 11, power supply 12 and headphone microphone output interface 13, wherein: the power input end, ambient noise receiving end, output end and audio input end of noise reduction chip 3 are respectively controlled with the headphone end The switch 5, the ambient noise receiver 1, the speaker 2 and the earphone end audio interface 8 are electrically connected, the control end of the earphone end control switch 5 and the earphone microphone input end are respectively electrically connected with the earphone end audio interface 8 and the earphone end microphone 4, and the device end The audio interface...

Embodiment 2

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

Embodiment 3

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

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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 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 earphone interface architecture for noise reduction of mobile phones collects environmental noise through an environmental noise receiver 1 placed on the earphone end, analyzes and processes the environmental noise through a noise reduction chip 3, and superimposes the processed noise and audio signal for output. to horn 2. The sound heard by the human ear consists of three types of signals: audio signal, processed noise and environmental noise. Since the processed noise is the inverse signal of the ambient noise, the two kinds of noise can cancel each other, the human ear will mainly hear the audio signal, and the noise is largely suppressed. [0003] In the existing structure with noise reduction function, an ambient noise receiver 1, a speaker 2, a...

Claims

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Application Information

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