JPS6316190Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a voice input/output box that can perform three types of transmission/reception methods using one box.

Currently, the following three types of transmitting/receiving systems are used. (1) A method of transmitting sound using an airway tube microphone and receiving external sounds using earphones;
(2) A vibrating pickup type ear microphone with a built-in vibrating pickup element and a sound output hole for transmitting and receiving bone conduction audio signals, and the sound from the earphones is transmitted through a sound conduit. (3) Bone conduction audio signals are transmitted to an ear microphone and sent to the ear canal through a sound output hole for reception. A method of sending and receiving calls using earphones.

Conventionally, all three types of transmitting and receiving methods use airway tubes,
The plug connected to the earphone, the plug and sound conduit connected to the vibrating pickup type ear microphone for sending and receiving calls, or the plug connected to the vibrating pickup type ear microphone for sending and receiving calls is connected to the audio input/output box. Therefore, a unique voice input/output box is required for each transmitting/receiving method, and cannot be shared by the three types of transmitting/receiving methods.

The present invention is an audio input/output box that can be used in common with three types of transmitting/receiving methods.

The present invention includes a jack for receiving a plug connected to an earphone, a jack for receiving a plug connected to a vibrating pick-up ear microphone for sending and receiving calls or a vibrating pick-up ear microphone for sending and receiving calls, and a jack for receiving a plug connected to a vibrating pick-up ear microphone for sending and receiving calls, and a connecting pipe connected to an airway tube or a sound conduit. There are three locations, and it is only necessary to provide two of the three depending on the transmitting/receiving method, so one box can be used in common for three types of transmitting/receiving methods.

The amplifier connected to the jack and the earphones connected to the connecting pipe may be installed inside or outside the audio input/output box.

The invention is illustrated in the drawings.

The audio input/output box 1 is provided with three locations a, b, and c, and one jack A, the other jack B, and a connecting pipe C are provided at the locations a, b, and c, respectively.

First, an embodiment will be described in which the voice input/output box 1 is used in a voice transmission/reception system in which voice is transmitted through the airway tube 2 and voice is received through the earphone 3 (FIG. 1).

Locations a and c of audio input/output box 1
A jack A and a metal connecting pipe C are attached to each of them. A lead wire (not shown) connected to the amplifier AMP is enclosed in cord 4 and connected to jack A. One end of the sound pipe 5 is connected to the microphone unit MU, and the other end of the sound pipe 5 is connected to a connecting pipe C. A lead wire (not shown) connected to the earphone 3 is enclosed in the cord 6 and connected to the plug 7, and the plug 7 is received in the jack A. The end 8 of the airway tube 2 is connected to a connecting pipe C.

When in use, the end 8 of the airway tube is connected to the connecting pipe C, and the plug 7 is connected to the jack A. The sound entering the airway tube 2 is transmitted through the connecting pipe C and the sound guide tube 5.
On the other hand, the audio signal from the amplifier AMP passes through the lead wire of the cord 4, the jack A, the plug 7 and the lead wire of the cord 6 and is input to the earphone 3 for reception.

An embodiment in which the audio input/output box 1 is used for a voice transmission/reception system in which a vibration pickup type ear microphone 9 for voice transmission/reception is used will be described (FIGS. 2 and 3).

Points b and c of audio input/output box 1
A jack B and a metal connecting pipe C are attached to each. A lead wire (not shown) connected to the amplifier AMP is enclosed in cord 4 and connected to jack B. One end of the sound pipe 5 is connected to the earphone 3, and the other end of the sound pipe 5 is connected to a connecting pipe C.

The vibration pickup type ear microphone 9 for transmitting and receiving calls has the following configuration. An adapter 11 having a sound output hole 10 at its tip is attached with a space 14 formed between it and a portion 13 protruding from the main body 12, and a vibrating pickup element 15 inserted into the portion 13 is fixed by a stator 16. A printed circuit board 17 provided with an impedance converting semiconductor (not shown) is fixed to 16 . Lead wire 18, 1
One end of the cord 19 containing the wire 8' is inserted into the main body 12, and the lead wires 18, 18' are connected to the vibration pickup element 1 through an impedance converting semiconductor.
5. One end of the sound conduit 20 inserted into the main body 12 is fixed to the front of the main body 12 and communicates with a space 14 within the adapter 11 .

Lead wires 18 and 18' of cord 19 are connected to plug 2.
1, a part of the plug 21 and the sound conduit 20
The other end is embedded in the connector 22, and is connected to the other end of the sound pipe 20 to provide a receiving part 23 for the connecting pipe C. The plug 21 and the receiving part 23 are connected to the jack B and the receiving part 23, respectively. Connection pipe C
is relative to.

In use, the plug 21 of the connector 22 is connected to the jack B, and the connecting pipe C is inserted into the receiving portion 23 of the connector 22. The vibration pickup element 15 of the vibration pickup type ear microphone 9 for transmitting and receiving calls inserted into the ear canal picks up bone conduction audio signals, and the bone conduction audio signals are transmitted through the lead wires 18, 18', the plug 21, the jack B, and the cord 4. The signal is input to the amplifier AMP through the lead wire and transmitted. On the other hand, external sound is transmitted through the earphone 3, the sound pipe 5, the connecting pipe C, and the sound pipe 20 to the vibrating pickup-type ear microphone 9 for transmitting and receiving calls, exits to the space 14 in the adapter 11, and enters the sound output hole 10. It goes further into the ear canal and reaches the eardrum, where it receives calls.

An embodiment in which the voice input/output box 1 is used in a transmitting/receiving system in which a vibrating pickup type ear microphone 9' is used to transmit a voice and an earphone 3 is used to receive the voice will be described (FIG. 4).

Location a and location b of audio input/output box 1
A jack A and a jack B are respectively attached to the mounts. The connection relationship between the amplifier AMP and the jack B is the same as in the previous embodiment.

The vibrating pick-up type ear microphone 9' for transmitting and receiving calls is different from the one in which the sound output hole 10 of the adapter 11 is not provided and the sound conduit 20 is not attached.
It has the same configuration as lead wire 1 of code 19.
8 and 18' are connected to the plug 21. The earphone 3, cord 6 and plug 7 are similar to the previous embodiment.

In use, plug 7 and plug 21 are connected to jack A and jack B, respectively. The vibrating pick-up element 15 of the vibrating pick-up type ear microphone 9' for voice transmission inserted into the ear canal picks up a bone conduction audio signal, and the bone conduction voice signal is input to the amplifier AMP as in the previous embodiment and is used for voice transmission. do. On the other hand, as in the previous embodiment, the audio signal from the amplifier AMP is input to the earphone 3 and is received.

In the present invention, one box can be used in three ways according to three types of transmitting/receiving methods, thereby improving productivity and reducing costs.

[Brief explanation of the drawing]

1, 2, and 4 are sectional views of the audio input/output box of the present invention used for different transmission and reception systems, respectively, and FIG. 3 is a sectional view of a vibrating pickup type ear microphone for transmission and reception. 1... Audio input/output box, 2... Airway tube,
3... Earphone, 7... Plug, 9... Vibrating pick-up type ear microphone for sending and receiving calls, 9'...
Vibrating pick-up type ear microphone for sending calls, 2
0... Sound conduit, 21... Plug, 22... Connector, 23... Receiving section, A... One jack, B
...Other jack, C...Connection pipe, AMP
...Amplifier, MU...Microphone unit, a, b,
c...Place.

Claims (1)

[Scope of utility model registration request] One jack A accepts the plug 7 to which the lead wire connected to the amplifier AMP is connected and the lead wire for transmitting audio signals to the earphone 3 is connected, and the jack A receives the plug 7 to which the lead wire connected to the amplifier AMP is connected, and the vibration for transmitting and receiving calls. Pick-up type ear microphone 9,
Alternatively, the other jack B receives the plug 21 connected to the lead wire for transmitting the bone-transmitted audio signal from the vibration pickup type ear microphone 9' for voice transmission, which is connected to the microphone unit MU, and is connected to the airway tube 2.
or to the earphone 3 and to the sound conduit 20 that transmits sound to the vibrating pickup type ear microphone 9 for transmitting and receiving calls. An audio input/output box in which two of jack A on one side, jack B on the other side, and connecting pipe C are attached to corresponding locations a, b, and c.