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Microphone with internal damping

一种麦克风、部件的技术，应用在微型麦克风领域，能够解决出现故障、影响麦克风频率响应、不利等问题

Inactive Publication Date: 2006-07-19
SONION NEDERLAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In both cases, accumulation of debris such as dust, hair fragments, pollen, and other particles can adversely affect the frequency response of the microphone and can even cause it to malfunction

Method used

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  • Microphone with internal damping
  • Microphone with internal damping
  • Microphone with internal damping

Examples

Experimental program
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Embodiment Construction

[0020] As described above, embodiments of the present invention provide methods and apparatus for buffering the frequency response within a microphone of a hearing device, such as a hearing aid. The method and apparatus of the present invention can use the hole in the back plate by partially covering the hole in order to control the frequency response. A substantially airtight seal is formed between the rear panel and the frame supporting the rear panel to prevent air from escaping through the seal.

[0021] A prior art microphone 100 for a conventional hearing device is shown in Figures 1A-1B. Referring first to the perspective view of FIG. 1A , microphone 100 includes a housing 102 that houses audio components within microphone 100 . The housing 102 may have a size and shape such that the microphone 100 is used in a miniature hearing device such as a hearing aid. The sound inlet 104 of the housing 102 allows sound waves to enter the microphone 100 .

[0022] FIG. 1B is a ...

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PUM

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Abstract

The invention relates to a microphone with internal damping .Method and apparatus are disclosed for damping the resonance frequency in a microphone. The method and apparatus of the invention involve providing an elastomeric frame to support the backplate. The elastomeric frame forms a substantially air tight seal around the backplate. A hole is formed in the backplate and a cover having an opening therein is placed over the hole in the backplate. The frequency response of the microphone may then be controlled by precisely controlling the size, shape, and / or location of the opening in the cover overlaying the hole. The cover may also serve as an electrical contact to other components in the microphone.

Description

technical field [0001] The present invention relates to a miniature microphone for use in a hearing device, such as a hearing aid. In particular, the present invention relates to methods and apparatus that have been used to buffer the frequency response in such miniature microphones. Background technique [0002] A conventional hearing device, such as a hearing aid, includes a microphone and a receiver. A microphone receives sound waves and converts the sound waves into audio signals. The audio signal is then processed (eg, amplified) and provided to a receiver. The receiver converts the processed audio signal into a sound signal, and then plays the sound signal to the user. [0003] Microphones typically have a rigid, charged back plate and a movable metal diaphragm. The diaphragm divides the internal volume of the microphone into a front volume and a rear volume. Sound waves enter the microphone via the sound inlet and into the front volume. Air vibrations generated ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/28H04R1/08
CPCH04R25/00H04R19/016H04R19/04
Inventor R·梅格林E·杜贝尔德曼R·阿佩尔
Owner SONION NEDERLAND
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