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Anti-noise stable-conducting microphone

A technology of microphone and sound transmission device, which is applied in the direction of piezoelectric/electrostrictive transducer microphone, transmission system, electrical components, etc. It can solve the problems of mutual communication influence, voice lightening, etc., and achieve good effect and wide resonant frequency Effect

Inactive Publication Date: 2005-11-02
周家耀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, personnel working in noisy environments can only use cotton earplugs, wear silicone rubber earplugs, earmuffs, and anti-sound helmets for noise prevention.
However, although these methods reduce the noise, they also make people's voice lighter, which also has a great impact on mutual communication.

Method used

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Embodiment Construction

[0017] The technical solution of the present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

[0018] The present invention mainly utilizes the characteristics that the anti-noise solid-conduction microphone with a resonant frequency close to the voice frequency can better conduct human speech and basically conduct space noise, by using the anti-noise solid-conduction microphone with a resonant frequency close to the voice frequency to collect audio signals. Such as image 3 The sound transmission device 100 in the anti-noise solid-conduction microphone shown in the figure is placed on the Adam's apple of the person. When the person speaks, the vocal cords vibrate and the vocal tract changes to form a resonance frequency. At this time, the strain of the piezoelectric ceramic produces a pressure The electrical effect thus converts the speech signal into an electrical signal. In the technical solution of the present ...

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Abstract

The invention discloses an anti-noise solid-borne microphone, including: power, earflap, transmitter circuit, receiver circuit, and including sound-conducting apparatus which collects sound from human body surface, and piezoelectric ceramics which is equipped with a plurality of different resonance frequency, sound-conducting apparatus connects with the transmitter circuit, its resonance frequency covers human voice frequency; earflap comprises single direction acoustical insulation ear insert and acoustical insulation ring and sound generator. The anti-noise solid-borne microphone in the invention can isolate noise and amplify the voice signal effectively, so it can isolate noise but not impact voice communication, simultaneously, because the invention uses the technology scheme of combining with multiple resonance frequency piezoelectric ceramics, its resonance frequency wider and can cover most of human voice frequency range, so it makes the transfer of voice get better effect.

Description

technical field [0001] The invention relates to a simple communication device, in particular to an anti-noise solid conduction microphone. Background technique [0002] With the rapid development of modern industry, noise has become one of the important environmental pollution. At the same time, noise also seriously affects the language communication between people. At present, personnel working in a noisy environment can only use cotton earplugs, wear silicone rubber earplugs, earmuffs, and anti-sound helmets for noise protection. However, although these methods have reduced noise, they have also made people's voice lighter, which has a great impact on mutual communication. Contents of the invention [0003] The object of the present invention is to provide an anti-noise solid-conduction microphone for isolating noise and voice, which can keep voice signals clear under the condition of isolating noise. [0004] In order to achieve the above object, the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R17/02
Inventor 周家耀
Owner 周家耀
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