Ear microphone

Abstract

The present invention relates to an ear microphone for providing clear sound by preventing echo and howling phenomena by blocking external noise, and for providing an effective telephone call in a noisy environment by improving the recognition ability of a voice-recognizing device. For the ear microphone, a connector for connection to an external device, a control unit for controlling the ear microphone overall, and an earphone unit to be worn by a user for outputting or inputting voice are electrically connected to each other through cables. The earphone unit consists of a first earphone unit which includes first and second speakers wearable on the ear, a first microphone having directivity, and a second earphone unit which includes a third speaker. For the control unit, a grounding terminal and one terminal of the control unit are connected to the connector such that the other terminal is connected to the first to third speakers, and one terminal is connected to the connector such that the other terminal is connected to the first microphone. The microphone output terminal is configured to be connected to a resistor in series. The third speaker is configured as a voltage-dividing resistor on a speaker input terminal. Each voltage dividing resistor is differently designed for the first and second speakers such that the second speaker has phase characteristics that are opposite those of the first speaker, and at the same time has a voltage different from the first speaker. A negative terminal of the first speaker and a positive terminal of the second speaker connected to the speaker output terminal are connected to a volume-adjusting unit.

Description

technical field [0001] The present invention relates to a headset. More specifically, it relates to providing a voice signal provided through the ear to a partner, or cutting off external noise to cut off echo and howling phenomena when controlling a voice recognition device, so that a clear sound can be heard. And by improving the recognition efficiency of the voice recognition device, it is a headset that can effectively talk in a noisy environment. Background technique [0002] Generally, such as figure 1 As shown, in order to listen to sound and voice signal communication, it is worn on the user's ear and used in a state of being connected to an external device 1 such as an audio device or a mobile phone. [0003] Such as figure 1 As shown, it is a shape that can be inserted into the user's ear, and a speaker 2 for outputting a sound signal is provided on the surface opposite to the user's ear, and the sound signal transmitted through the external auditory canal in the...

AI Technical Summary

Problems solved by technology

[0016] The present invention is proposed to solve the above existing problems, and its purpose is to provide a headset that utilizes a second closed magnetic balance type (BA type balanced armature type (Balanced Armature type) with different phases and voltages. )) speaker S2 to adjust because the output of the first closed magnetic balance type (BA type balanced armature (balanced armature)) speaker S1 is too high and input to the microphone M in this state, so there is a disadvantage of echo phenomenon, when the microphone When the output of M is too high, adjust the output to suppress the howling phenomenon, so as to provide clear calls even in noisy environments

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