Earplug type bone conduction receiver-transmitter

Abstract

The invention discloses an earplug type bone conduction call transmitting and receiving device, which is characterized by comprising a call transmitting earplug device, a call receiving earplug device, a signal processing circuit and a connector, wherein the call transmitting earplug device comprises a first shell and a miniature contact microphone transmitter arranged in the first shell; the call receiving earplug device comprises a second shell and a miniature moving coil receiver arranged in the second shell; the miniature contact microphone transmitter is connected with the signal processing circuit which is connected with the connector; the miniature moving coil receiver is connected with the connector; and the output end of the signal processing circuit is provided with PTT switches in parallel for the make-and-break switch in the process of communication. The earplug type bone conduction call transmitting and receiving device has the advantages that the microphone transmitter and the receiver are completely separated from each other to achieve the call transmitting and the call receiving respectively through the miniature contact microphone transmitter and the miniature moving coil receiver by two ears of a person, so that the problems of self excitation and audio mixing in a duplex state are solved fundamentally, and the earplug type bone conduction call transmitting and receiving device can be applied to the field of communication devices such as mobile phone and interphone, and has a broad market prospect.

Description

technical field [0001] The invention relates to a communication device for transmitting and receiving telephones with high anti-noise function, in particular to an earplug type bone conduction telephone transmitting and receiving device. Background technique [0002] The biggest feature of the existing earplug-type bone conduction receiver is that it solves the difficult problem of communication equipment in a high-noise environment. The microphone picks up the speech signal through the human bone vibration pickup, and does not feel the sound wave vibration in the air. It has a very good anti-noise effect, and can be widely used in the field of communication equipment such as mobile phones and walkie-talkies, and can be used in some occasions that require confidential calls. However, due to the technical shortcomings of heavy mixing and difficult identification, and serious self-excitation problems in the duplex system, this technology has been around for nearly two decades ...

AI Technical Summary

Problems solved by technology

But in the actual use process, it is found that the problem of self-excitation and mixing cannot be solved in the duplex state, so it can only be used in the form of simplex for many years after the product came out.

This has also greatly hindered the promotion and application of products in this way in the market.

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