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Electroacoustic telephone transmitter

A carbon box, electro-acoustic technology, used in electrostatic transducer microphones, electrical components, piezoelectric/electrostrictive transducer microphones, etc.

Inactive Publication Date: 2002-10-02
AKG ACOUSTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This means considering application-specific and thus expensive switch

Method used

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  • Electroacoustic telephone transmitter
  • Electroacoustic telephone transmitter
  • Electroacoustic telephone transmitter

Examples

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Embodiment Construction

[0029] FIG. 1 shows an example of an acoustic capsule for use in a microphone that operates on the electroacoustic principle. The acoustic characteristics of the microphone are mainly determined by the distance between the diaphragm 1 and the electrode 2 and the structure of the acoustic adjustment element 3 of the carbon capsule (the volume at the back, the friction of the sound inlet hole at the back, the size and number of holes in the electrode ). If the electrodes are movable and placed in the acoustic field, the geometric parameters between the diaphragm and the fixed electrode 2 are fixed, and if the acoustic adjustment parameters 3 inside the capsule (narrow channels, closed volumes and only partially permeable air area) is calculated and realized mechanically, then the directivity, sensitivity, and frequency response are determined and do not change. The shown "boundary conditions" of the capsule are determined by the microphone housing, not shown, after which the co...

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Abstract

An electroacoustic capsule or electroacoustic transducer for an electroacoustic device has electrostrictive or magnetostrictive elements connected to a controllable power supply. Dimensional changes of the electrostrictive or magnetostrictive elements cause changes of the inner geometry of the electroacoustic capsule or electroacoustic transducer. This allows the adjustment of the capsule or transducer to the electroacoustic device in which it is mounted so that individual and dynamic adjustments are possible.

Description

technical field [0001] This invention relates to electroacoustic capsules or transducers for electroacoustic devices. The converter works either on the principle of electromagnetic, electric, or electrostatic, or on the principle of piezoelectricity, and the converter is either realized as a loudspeaker or as a sound receiver. Background technique [0002] Such devices consist essentially of essentially electro-acoustic transducers, which are used in so-called capsules, which in turn are housed in the device housing, in which are also the other necessary electronic components. [0003] An electroacoustic device contains at least one so-called electroacoustic capsule, which can be realized as a loudspeaker or as a sound receiver. In order to simplify the language, the electroacoustic device including at least one carbon capsule realized as a sound receiver is referred to as a microphone in this specification and patent requirements, and the electroacou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R17/02H04R7/00H04R7/04H04R9/02H04R15/00H04R17/00H04R19/00H04R19/01H04R19/04
CPCH04R19/016
Inventor 帕夫罗维奇·吉诺内尔·库尔特
Owner AKG ACOUSTICS