In-ear microphone and control circuit including in-ear microphone and speaker headset

A microphone and speaker technology, applied in transducer circuits, earpiece/headphone accessories, sensors, etc., can solve the problems of high manufacturing cost and complex structure, and achieve high signal-to-noise ratio, clear voice, and easy machine identification. Effect

Inactive Publication Date: 2015-12-16
李钢坤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the obvious disadvantage of this technical solution is that in the cavity member extending into the external auditory canal with extremely limited space size, an independent loudspeaker and microphone must be set at the same time, which has a complex structure and high manufacturing cost; especially this technical solution does not The solution to the problem that the microphone collects sound at the same time and produces howling noise is not pointed out during the speakerphone voice call

Method used

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  • In-ear microphone and control circuit including in-ear microphone and speaker headset
  • In-ear microphone and control circuit including in-ear microphone and speaker headset
  • In-ear microphone and control circuit including in-ear microphone and speaker headset

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: An in-ear microphone, comprising a sponge support cylinder pad 1, a support protection cylinder sleeve 2, an electret film 3, a sensing cover 4, a noise isolation cover 5, a body 6, a loudspeaker 7 and an incoming voice signal Line 7a, rear end cover 8, field effect tube 9, outgoing voice signal line 10, polyester film sleeve 11, the front section of the fuselage 6 is the ear section 6d, the middle section is the transition section 6e, and the rear section is the cabin section 6f, There is a sound hole 6c in the center of the ear section 6 and the transition section 6e, and the outer wall of the transition section 6e has a noise isolation cover 5; the inner cavity of the rear section 6f of the fuselage 6 is fastened with the inner cavity of the rear end cover 8 to form the assembly compartment of the speaker 7, Its in-ear microphone is an electret condenser bone conduction microphone, and the electret film 3 is cylindrical and assembled on the outer wall of...

Embodiment 2

[0032] Embodiment 2: another kind of in-ear microphone, specifically, there is a cylindrical electret film 3 on the outer wall of the ear section 6d of the fuselage 6, and the inner side of the electret film 3 is covered with a conductive layer, and the electret film 3 The outer wall of the sponge support cylinder pad 1 is provided with a polyester film sleeve 11 on the outer wall of the sponge support cylinder pad 1. The outer wall of the polyester membrane sleeve 11 is covered with a conductive layer, and the outer wall of the conductive layer of the polyester membrane sleeve 11 has a support protection sleeve 2. The outer wall of the support protection sleeve 2 has a sensing cover 4; the support protection sleeve 2 is made of 206# stainless steel with nickel-plated surface, and the wall of the support protection sleeve 2 has a hollow groove 2a, and the support protection sleeve 2 and The conductive layer of the outer wall of the polyester film sleeve 11 keeps in good contact...

Embodiment 3

[0033] Embodiment 3: The loudspeaker 7 is a moving iron horn.

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Abstract

An in-ear microphone is disclosed, which is an electret condenser bone conduction microphone. An electret film is in a tubular shape and fitted in the outer wall of an in-ear segment of a tubular body. The inside of the electrets film is provided with a support sponge cylinder sleeve, and the outer wall is provided with a support protective cylinder sleeve and a sensing cover. The tubular wall of the in-ear segment is provided with hollowed air holes. Behind the microphone there is provided a speaker assembly cabin formed by buckling a body rear segment inner chamber and a rear end cover inner chamber. Further disclosed is a control circuit including the in-ear microphone and a speaker headset. A control IC is connected through a wire a onto an incoming call voice signal line or a voice output line +V, and the alternate work of the microphone and the speaker can be controlled through the control IC to prevent howling. The in-ear microphone and the control circuit can be used for both speaking and hearing via the same ear. Voice signals acquired by the in-ear microphone are clear and of high signal to noise ratio, and the invention is suitable for voice communication among humans, better facilitates machine identification and is especially suitable for voice control, online cloud translation and other intelligent applications.

Description

technical field [0001] The invention relates to voice communication technology, and specifically provides an in-ear microphone and a control circuit including the microphone and a loudspeaker earphone. Background technique [0002] In-ear (or semi-in-ear) bone conduction microphones and speakers, no matter collecting voice signals or restoring audio signals to voice, because they isolate most of the noise in the environment, they have good anti-noise performance. The noise ratio is high, which is convenient for machine speech recognition and intelligent recognition, and it is more and more valued by people in modern communication technology. Especially in the future when communication applications such as voice intelligent control and online cloud translation are rising day by day, in-ear bone conduction microphones and speakers will play an important role. Speaking and controlling with ears will become an important means of intelligent voice control. [0003] In-ear micro...

Claims

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Application Information

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IPC IPC(8): H04R1/10H04R3/00
Inventor 李钢坤
Owner 李钢坤
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