Acoustic apparatus and headphone

A head-mounted earphone and playback device technology, applied to active noise-cancelling hearing devices, earpiece/earphone accessories, earphones to reduce ambient noise, etc., can solve the problem of high maintenance costs, reduce maintenance costs, and simplify adjustment work.

Inactive Publication Date: 2008-01-30
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] ② When replacing a part of the components, it is necessary to re-adjust the whole
[0017] ③Whether the whole is replaced or partly improved, the maintenance cost is very high

Method used

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  • Acoustic apparatus and headphone
  • Acoustic apparatus and headphone
  • Acoustic apparatus and headphone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Next, embodiments of the acoustic device of the present invention will be described with reference to the drawings.

[0037] As shown in FIG. 1 , the audio apparatus according to the present embodiment includes a headphone unit 10 and a control circuit unit 20 . As shown in the figure, the headphone unit 10 and the control circuit unit 20 are separate bodies, and the headphone unit 10 has a stereo plug 11 as a left and right audio signal output terminal (first output terminal) and a left and right audio signal input terminal ( The control circuit 20 has the stereo jack 21 as the left and right audio signal input terminals (second input terminals) and the left and right audio signal output terminals (second output terminal) of the stereo jack 22. Then, the plugs 11 and 12 of the headphone 10 are inserted into the sockets 21 and 22 of the control circuit 20, whereby the headphone part 10 and the control circuit part 20 are connected, and the noise canceling headphone can...

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PUM

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Abstract

A headphone section 10 having microphone elements 14 L, 14 R for detecting a sound around the user and signal acoustic transducing elements 15 L, 15 R which function as a sound source for canceling the sound around the user housed in the headphone boxes 13 L, 13 R and a control circuit section 20 that includes a noise canceling headphone together with the headphone section 10 are separately configured. The control circuit section 20 is adjusted in such a manner that variation can be reduced and predetermined frequency characteristics and gain characteristics are achieved at a predetermined frequency. To the headphone section 10 , gain adjusting sections 16 L, 16 R are equipped.

Description

[0001] This application is a divisional application of an application with an application date of August 12, 1999, an application number of 99801827.9 and the title of the invention "Audio Apparatus and Headphones". technical field [0002] The present invention relates to headphone and audio devices that reduce ambient noise and facilitate listening to, for example, music. Background technique [0003] We know that there is a so-called noise-cancelling headphone, which uses the microphone installed in the headphone frame to receive the noise around the user, and analyzes the noise. ) outputs a sound whose phase is opposite to that of the noise, thereby reducing the above-mentioned ambient noise. [0004] In this case, the noise cancellation methods include a feedforward method and a feedback method. FIG. 9 is a diagram showing the configuration of the noise-cancelling headphone of the feedforward method, and FIG. 10 is a diagram showing the configuration of the noise-cance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/10H04R3/00H04R3/04G10K11/178A61F11/14
CPCH04R2460/01H04R1/1083A61F2011/145A61F11/14A61F11/145H04R1/10H04R3/00
Inventor 阿部健作鬼头和久西本博文矢吹惠子
Owner SONY CORP
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