KR19990046510A - Microphone through bone-vibration pick-up combined with Speaker - Google Patents

Abstract

An object of the present invention is a microphone-coupled earphone which can talk without holding a mobile phone, a general telephone and a walkie-talkie, as a sound source instead of collecting sound from the mouth as a medium. IC designed to block external noises and to improve sound clarity by designing sound from the neck and mouth to collect sound transmitted through bone and skin as a medium Or the purpose of the built-in circuit board to talk in the best sound quality.

In order to realize this,

First, by forming a silicon jaw with one discharge hole in the microphone, the jaw blocks the external noise and at the same time collects the sound generated from the sound source as bone (bone) and skin. To function. This single outlet also plays an essential role in sound clarity and stabilization.

Second, in order to deliver the collected fine signal with the best sound quality, it is equipped with a special 1C or circuit board which has enhanced the amplifier performance and sound clarity.

Third, the earphone unit and the microphone unit are combined in the form of a nucleus to give elasticity (수 性) so that the microphone unit can be most closely in contact with the human skin.

Fourth, the Tact (Tact) switch is installed on the main body of the device for convenient transmission and reception control, and also because the microphone unit is in close contact with the skin due to pressing the switch during transmission and reception.

Description

Bone vibration microphone combined earphones {Microphone through bone-vibration pick-up combined with Speaker}

An object of the present invention is a microphone-coupled earphone that can talk without holding a mobile phone, a general telephone and a walkie-talkie in the hand. Designed to collect mainly the sound transmitted through bone (bone) and skin, especially the vibration of bone (bone) as a medium, it blocks the external noise, and built-in IC or circuit board with special designed amplifier and sound clarity Its purpose is to make the call with the best sound quality.

The technical field to which the present invention belongs is in the field of acoustic engineering, in particular in the field of sound transmission media and noise reduction, and in the field of electronics, including amplifiers.

Referring to the prior art according to Figure 3-1

The microphone part 13 is installed in the middle part of the cord 12 connecting the ear plug-type earphone part 11 and the plug 14, or the microphone part is installed at the end of the bar extending from the earphone part. In this case, the sound collecting surface of the microphone 13 may be far from the mouth due to the influence of the wind, and the quality of the call is often degraded because it is completely exposed to the outside and collects a lot of unnecessary external noise.

In the microphone integrated earphone of FIG. 3-2, since the earphone part 11 and the microphone part 13 are fixed to the body in one body, it is difficult for the collecting surface of the microphone part 13 to be in close contact with the cheek safely according to the shape of the user's cheek. Therefore, the collection of sound through the skin is almost impossible and the quality of the call is deteriorated because it cannot stop outside noise flowing through the skin. In addition, the microphone 13 may be far from the user's mouth, which may be disadvantageous when transmitting sound than the conventional detachable type.

First: sound collection of bone and skin as a medium.

Second: amplify the collected sound loudly and clearly

Third: prevent external noise and howling

Fourth: convenient transmission and reception control

1 is a view showing the overall configuration of the present invention 1-1 is a front view, 1-2 is a side view, 1-3 is a back view.

2 is an internal structure diagram

3 is a conventional microphone earphone 3-1 is a microphone and earphone are separated products and 3-2 is an integrated product.

4 is an amplification circuit diagram of the present invention.

To pick up sound with bone and skin as a medium

First, the microphone part 1 is composed of a piezoelectric microphone and a jaw part 2 using a silicone rubber material. At this time, the jaw portion 2 should have a directivity perpendicular to the sound collection surface (執 音 面), as well as designed to be in close contact with the skin.

Second: Combine the main body 6 and the speaker 5 in the shape of the knuckle 4 to design the microphone unit 1 to be in close contact with the skin according to the shape of the ball.

To make the collected sound loud and clear

First: the material of the jaw part 2 is made of silicone rubber

Secondly, one discharge hole 3 is formed in the jaw portion 2. The function of the exhaust hole 3 reduces the high sound pressure that is initially generated when the device is worn, so as to stabilize the sound and to eliminate the resonance occurring in the jaw part 2, thereby improving the sound clearance of the sound. It works.

Third: Use a special amplifier 8 (see the schematic in Fig. 4) to increase the sound pressure and increase the intelligibility of the sound.

The amplifier 8 uses the power of a terminal or a general telephone without using a separate battery. In this case, the power line and the signal line are used together, which is the main characteristic of the present invention. In this case, the drop phenomenon of falling voltage can of course be eliminated.

To prevent external noise and howling

First: Both the material of the jaw part 2 and the back surface of the jaw part are made of silicone rubber.

At this time, the back is bonded so that sound does not penetrate.

Secondly, a discharge hole 3 is formed at the bottom of the jaw portion 2.

Tact switch 7 is installed on the main unit of the main unit for convenient transmission and reception, and the microphone unit 1 also comes into close contact with the skin by pressing the switch during transmission and reception.

The sound of the mouth, which is the sound source, is not collected with air as a medium, but with bone and skin as a medium. Will be. In addition, by using a specially designed amplifier to increase the sound pressure of the sound, the receiver can recognize the sound more clearly than conventional microphone earphones.

Claims (4)

A microphone earphone having a silicon jaw 2 formed with a discharge hole 3 to collect sound generated from a sound source through bone and skin. It uses the power of a terminal or a general telephone without using a separate battery. It also eliminates the drop phenomenon, and it uses an amplifier 8 that uses a power line and a signal line. A microphone earphone with a built-in amplifier 8 having the characteristics of the circuit diagram 4 which amplifies the collected sound and raises the sound clarity. A microphone earphone which combines the microphone part 1 and the earphone part 5 which are separated from each other so that the sound collecting surface (chin part 2) adheres well to skin. A microphone switch that installs a tact switch 7 on the main unit for convenient transmission and reception and also presses the switch during transmission and reception so that the microphone unit 1 is in close contact with the skin.