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Noise-cancelling headphone

A head-mounted and earphone technology, which is applied to stereo communication earphones, handset/earphone accessories, and earphones to reduce environmental noise, etc. It can solve problems such as damaging the safety of earphone users, achieve high sound quality, and eliminate surrounding noise. Effect

Inactive Publication Date: 2009-11-18
AUDIO-TECHNICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of using such noise-canceling headphones, there is a possibility that the safety of the headphone user may be compromised when the sound used to report the surrounding conditions (such as a siren, an electric siren, etc.) is canceled by the cancellation signal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Embodiments of the noise canceling headphones of the present invention will be described with reference to the drawings. figure 1 It is a schematic diagram showing a single-side case of a pair of left and right noise-canceling headphones. exist figure 1 In the headphone case 1, a headphone unit 10 and a microphone unit 50 for collecting surrounding noise N are assembled. The headphone unit 10 has a speaker unit as will be described later, and also has a canceling signal generator for generating a noise signal for canceling based on a noise signal collected by the microphone unit 50 and converted into an electrical signal. Noise N signal. A part of the outer wall of the headphone housing 1 is provided with a through hole 201 for the microphone unit 50 to easily collect noise N, and the microphone unit 50 is installed inside the through hole 201 facing outward. A sound source 30 such as a portable music player can be connected to the headphone unit 10 . By inputting t...

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PUM

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Abstract

The invention provides a noise-cancelling headphone, including a cancel signal generator that receives ambient noise via an electro-acoustic transducer and generates and outputs a cancel signal eliminating the noise and a speaker unit that outputs an audio signal and a cancel signal, and connects the cancel signal generator to a first terminal of two input terminals of the speaker unit and connects a sound source of an audio signal to a second terminal thereof, whereby obtaining the noise-cancelling headphone with which one can enjoy music with high quality without the change in the sound quality and volume between when a noise-cancelling function is activated and when deactivated.

Description

technical field [0001] The invention relates to a head-mounted noise-canceling earphone which can not be disturbed by the surrounding noise when listening to music by outputting the signal for eliminating the surrounding noise together with the music signal, and particularly relates to a noise-canceling function in terms of sound quality and volume. Noise-canceling headphones that do not change between running and stopping so that you can enjoy music with high sound quality. Background technique [0002] Currently, noise-canceling headphones that can listen to high-quality music while canceling surrounding noise are expected. In general, a noise-canceling headphone has: a microphone that collects ambient noise into the headphone case; a cancel signal generation circuit of a signal (cancellation signal) of the noise heard; and a mixer circuit for synthesizing and outputting the music signal and the cancel signal. In the case of using such noise-canceling headphones, when a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/10H04R5/033H04R3/00H04R5/04
CPCG10K11/1788H04R1/1083G10K11/17827G10K11/1785G10K11/17873G10K11/17885
Inventor 木村富至
Owner AUDIO-TECHNICA
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