JP2000050375A - Ear microphone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ear microphone that prevents howling with a small size, a simple structure at a low cost and prevents fidelity in a high frequency sound component from being deteriorated. SOLUTION: The ear microphone is provided with a speaker unit 3 and a microphone unit 4 that are placed separately, a sound shield member 8 with an outer diameter in pressure contact with an external auditory meatus 6A of the user, a 1st sound guide 5 that is fitted to the speaker unit 3 and leads a sound produced by the speaker unit to the external auditory meatus 6A, a 2nd sound guide 7 that is fitted to the microphone unit 3 and leads a sound generated by the user to the microphone unit, a 1st sound hole 8c that is formed to the sound shield member 8 so as to communicate with the 1st sound guide 5, and a 2nd sound hole 8D that is formed to the sound shield member 8 so as to communicate with the 2nd sound guide 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ear microphone, and more particularly, to a wireless or wired simultaneous simultaneous communication device,
The present invention relates to an ear microphone which converts voice into an electric signal and converts an electric signal into a voice to enable a mutual simultaneous communication in a mobile communication device in a field such as a simplex communication device.

[0002]

2. Description of the Related Art A commonly used ear microphone is configured such that sound from a speaker unit is collected by a microphone unit. In addition, other commonly used ear microphones include:
In some cases, a method of converting a bone conduction voice signal (vibration) into an electric signal is employed. Furthermore, as another ear microphone generally used, there is also one configured using an acceleration conversion element.

[0003]

However, in the ear microphone constructed so that the sound from the speaker unit is collected by the microphone unit, howling occurs. Such as degrading the function or disabling use. Further, the ear microphone of the above-described method of converting a bone conduction audio signal (vibration) into an electric signal has a disadvantage that the structure is complicated and thus expensive. Still further, other ear microphones that are generally used have a drawback that the ear microphone adopting a structure using an acceleration conversion element has a problem that the fidelity of high-pitched sound is reduced and the sound is expensive. .

The present invention has been made in order to solve the above-mentioned problems, and it is possible to prevent the occurrence of howling, to reduce the size, to have a simple structure, and to reduce the cost.
It is an object of the present invention to provide an ear microphone that can prevent a decrease in fidelity of a high-pitched sound.

[0005]

SUMMARY OF THE INVENTION An ear microphone according to the present invention comprises a speaker unit and a microphone-phone unit which are separately arranged, a sound insulating member having an outer diameter which comes into contact with an ear canal of a user, and the speaker. A first sound conduit attached to the microphone unit and guiding the sound generated by the speaker unit to the ear canal; and a first sound conduit mounted to the microphone unit and guiding the sound generated by the user to the microphone unit to the ear canal. And a first sound conduit formed in the sound insulation member so as to communicate with the second sound conduit.
And a second... Hole formed in the sound insulating member so as to communicate with the second sound conduit. And a guide hole.

[0006]

In the ear microphone according to the present invention, the sound generated by the speaker unit is transmitted to the user by the sound pipe attached to the speaker unit and the first sound guide hole formed in the sound insulating member. Is guided only to the outer ear of the ear, and is sound-insulated by the sound insulation part formed in the sound insulation member.
It is not guided to the microphone unit. Further, in the speaker unit, since the sound insulating portion formed on the sound insulating member is in close contact with the outer ear of the user's ear, external noise is not mixed. Therefore, only the voice generated by the user is collected in the speaker unit.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an ear microphone according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic diagram illustrating the structure of an ear microphone according to the present invention.

In FIG. 1, a cylindrical resin-made shell body (casing) 1 is integrally formed with a cylindrical resin-made mounting portion 2. The diameter is smaller than the outer diameter of the shell body (casing) 1. The shell body (casing) 1 has a speed
The microphone unit 3 and the microphone unit 4 are physically separated from each other, and the speaker unit 3 and the microphone unit 4 have a cord 3A and a cord connected to a jack (not shown). Nodes 4A are connected to each other. The speaker unit 3 is provided with a wire-like, hard plastic or other sound pipe 5 which is hollow. The sound conduit 5 transmits the sound generated by the speaker unit 3 to the external auditory canal 6A of the user's ear 6.
It is configured to lead to. Further, the microphone unit 4 is provided with a wire-shaped, hard plastic and hollow sound conduit 7. A soft and flexible sound insulating member 8 which is inserted into the external auditory canal 6A of the user's ear 6 and is attached to the mounting portion 2 is freely attached. The sound insulating member 8 includes an external auditory canal 6 of the user's ear.
A first sound-insulating portion 8A and a second sound-insulating portion 8B having outer diameters abutting on A are formed. These first sound insulation portions 8
A and the second sound insulation unit 8B are made of a flexible soft member. The sound insulating member 8 is provided with a sound guide hole 8C communicating with the sound conduit 5 attached to the speaker unit 2. The sound conduit 5 and the sound conduit 8C are configured to guide the sound generated by the speaker unit 2 only to the external auditory canal 6A of the user's ear 6. That is, since the sound insulating portion 8A of the sound insulating member 8 is in close contact with the external auditory canal 6A of the ear 6 of the user's external ear, the sound generated by the speaker unit 2 is guided to other than the external ear canal 6A of the user's ear 6. I can't. The sound insulating member 8 has a sound guide hole 8D communicating with a sound conduit 7 attached to the microphone unit 3. The sound conduit 7 and the sound guide hole 8D are configured to collect sound generated by the user only to the microphone unit 4.

In the embodiment of the ear microphone according to the present invention having the above structure, a shell body (casing) 1 is provided.
Has a speaker unit 3 and a microphone unit 4
Are physically separated. The speaker unit 3 is provided with a wire-shaped, hard plastic and hollow sound conduit 5. A first sound insulating portion 8A having an outer diameter that comes into contact with an external auditory canal 6A of an ear 6 of an outer ear of a user is provided on a sound insulating member 8 attached to the mounting portion 2 of the shell body (casing) 1 so as to be freely attached. Is formed, and a sound guide hole 8C communicating with the sound conduit 5 is formed. For this reason, in the sound conduit 5 and the sound conduit 8C, the sound generated in the speaker unit 2 is guided to only the external auditory canal 6A of the user's ear 6 by the sound conduit 5 and the sound conduit 8C. In this state, the sound insulating member 8 is formed with the first sound insulating portion 8A having an outer diameter closely contacting the external auditory canal 6A of the ear 6 of the user's outer ear. Since external noise does not enter the ear canal 6A of the user's ear 6, only the sound generated by the speaker unit 2 is guided to the ear canal 6A of the user's ear 6. In this way, speed
The sound generated by the power unit 2 is sound-insulated by the first sound insulation unit 8A of the sound insulation member 8 and is not collected by the microphone unit 3, so that no howling occurs. Further, since the first sound insulating portion 8A and the second sound insulating portion 8B are composed of flexible soft members, the sound insulating member 8 is inserted into the external auditory canal 6A of the user's ear 6. Also, when removing the sound insulation member 8 from the external auditory meatus 6A of the user's ear 6,
The external auditory canal 6A of the user's ear 6 is not damaged. Also,
The ear canal 6A of the ear 6 of the user's outer ear is provided on the sound insulating member 8.
And a sound insulation portion 8B that is in close contact with
Sound conduit 7 attached to microphone unit 3
Is formed. Therefore, the microphone unit 3 collects only the voice generated by the user. That is, the sound insulation part 7 of the sound insulation member 7
B is close to the ear canal 6A of the user's ear 6,
Since external noise is shielded by the sound insulating portion 7B of the sound insulating member 7, only the sound generated by the user without noise is collected by the microphone unit 3. Furthermore, since it is inserted into the external auditory canal 6A of the user's ear 6 and is freely attached to the soft and flexible sound insulation member 8, the size of the dimension fits the external auditory canal 6A of the user's ear 6. If a plurality of items are prepared, it can be used comfortably without damaging the external auditory canal 6A of the user's ear 6.

The present invention is not limited to the above embodiment, but includes various modifications and applications. In the above embodiment, the shell body (casing) 1 includes the speaker unit 2 And the microphone unit 4 are physically separated from each other in that the sound generated by the speaker unit 2 is not collected by the microphone unit 3. Therefore, the speaker unit 2 and the microphone unit 3 may be arranged so as to be in contact with each other. Further, the material of the shell body (casing) used in the present invention does not necessarily have to be made of the resin of the above-described embodiment, but may be any material having a certain form. Furthermore, the soft and flexible sound insulation member 8 inserted into the external auditory canal 6A of the user's ear 6 is attached so as to be freely attachable. If a plurality of items are prepared, it can be used comfortably without damaging the external auditory meatus 6A of the user's ear 6. Furthermore, the shape of the sound insulating member 8 is not limited to the shape as shown in FIG. 1, and it is sufficient that a space in which the sound generated by the user is collected by the microphone unit 3 is formed.

[0012]

As described above, the ear according to the present invention is used.
The microphone generates the sound generated by the speaker unit,
Since the sound is not intercepted by the microphone unit because the sound is interrupted by the first sound insulating portion of the sound insulating member, no howling occurs, so that simultaneous mutual transmission / reception communication can be performed with excellent noise-free communication quality. In addition, since the vibration of the ear when the user occurs is converted without using the acceleration conversion element, it is possible to obtain a high-fidelity communication quality. Furthermore, the noise of trains or noise generated at construction sites, etc.
Since the sound is shielded by the second sound insulating portion of the sound insulating member, external noise is not collected by the microphone unit, and a telephone call can be made without being disturbed by the noise. Furthermore, when the ear microphone according to the present invention is used not as an option but as a dedicated product, there is no need to incorporate a speaker unit and a microphone unit in the main body, so that a commercially available mobile phone or the like is generally used. Body size (eg, 130 mm height)
Torr × width 43 mm × thickness 21 mm) can be greatly reduced, so that the size can be significantly reduced and the cost can be reduced. Furthermore, when the ear-microphone according to the present invention is used in a mobile phone or the like, since it is not necessary to hold the main body, other operations (for example, driving with both hands, eating meals, etc.) can be performed while making simultaneous telephone calls. Preparation, etc.).

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration of an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Shell main body (casing) 2 ... Attachment part 3 ... Speaker unit 3A ... Code 4 ... Microphone unit 4A ... Code 5 ... Sound pipe 6 ... ear 6A ... external ear canal 7 ... sound conduit 8 ... sound insulation member 8A ... first sound insulation part 8B ... second sound insulation part 8C ... sound conduction hole 8D ... sound conduction hole

Claims (1)

[Claims] 1. A speaker unit and a microphone-phone unit which are separately arranged, a sound insulation member having an outer diameter in contact with a user's ear canal, and a speaker unit attached to the speaker unit. A first sound conduit for guiding the generated sound to the ear canal; a second sound conduit attached to the microphone unit for guiding a user-generated sound to the microphone unit; and a communication with the first sound conduit. A first sound guide hole formed in the sound insulating member, and a second sound guide hole formed in the sound insulating member so as to communicate with the second sound conduit. An ear microphone characterized by the following.