JP2021093573A - Earphone type microphone - Google Patents

Earphone type microphone Download PDF

Info

Publication number
JP2021093573A
JP2021093573A JP2019221538A JP2019221538A JP2021093573A JP 2021093573 A JP2021093573 A JP 2021093573A JP 2019221538 A JP2019221538 A JP 2019221538A JP 2019221538 A JP2019221538 A JP 2019221538A JP 2021093573 A JP2021093573 A JP 2021093573A
Authority
JP
Japan
Prior art keywords
microphone
sound
holding member
eardrum
earphone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2019221538A
Other languages
Japanese (ja)
Other versions
JP7403296B2 (en
Inventor
中村　隆
Takashi Nakamura
隆 中村
雄基 高木
Yuki Takagi
雄基 高木
隆 鵜飼
Takashi Ukai
隆 鵜飼
康夫 鳥本
Yasuo Torimoto
康夫 鳥本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imasen Electric Industrial Co Ltd
Original Assignee
Imasen Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imasen Electric Industrial Co Ltd filed Critical Imasen Electric Industrial Co Ltd
Priority to JP2019221538A priority Critical patent/JP7403296B2/en
Publication of JP2021093573A publication Critical patent/JP2021093573A/en
Application granted granted Critical
Publication of JP7403296B2 publication Critical patent/JP7403296B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

To provide an earphone type microphone capable of installing a microphone at a position closer to an eardrum, capable of reducing the picking up of vibrations of an external canal, capable of measuring the intra-head sound with high accuracy, and capable of installing the microphone in the vicinity of an eardrum corresponding to the external canal and an ear mouth shape having individual difference.SOLUTION: An earphone microphone 100 according to the present invention includes: a microphone 10 in which a sound collecting part is disposed at least on the eardrum side; a microphone holding member 20 which is formed in a coil shape by a flexible linear member and attached to the tip of the microphone 10, and holds the microphone 10 in an external canal without contacting the external canal; and a cable 30 connected to the microphone 10 and transmitting an electric signal converted from the in-head sound by the microphone 10.SELECTED DRAWING: Figure 2

Description

本発明は、イヤホン型マイクロフォンに関する。 The present invention relates to an earphone type microphone.

外耳道伝達関数を高い精度で計測することができるイヤホンマイクとして、装着時に外耳道へと延びる筒状の音筒部を有する筐体と、前記筐体に収容されたスピーカと、前記音筒部内に配置された第１のマイクと、を備えたカナル型イヤホンマイクが提案されている（特許文献１）。 As an earphone microphone capable of measuring the external auditory canal transmission function with high accuracy, a housing having a tubular sound tube portion extending to the external auditory canal when worn, a speaker housed in the housing, and the sound tube portion are arranged. A canal type earphone microphone provided with the first microphone has been proposed (Patent Document 1).

しかしながら、かかるカナル型イヤホンマイクは、外耳道伝達関数を高い精度で計測するには優れているが、鼓膜内からも伝達される頭内音（頭内伝達関数、詳細は、後述する。）を計測する場合には、マイクロフォンが音筒部に当接しているため、外耳道から直接伝達される音を大きく拾ってしまい頭内音を高精度で計測することが困難であるという問題点があった。また、マイクロフォンを鼓膜近傍に設置することができず、頭内音を採取するのに最適な位置にマイクロフォンを設置することができないという問題があった。 However, although such a canal type earphone microphone is excellent for measuring the external auditory canal transfer function with high accuracy, it measures the intracranial sound (intracranial transfer function, details will be described later) transmitted from the eardrum. In this case, since the microphone is in contact with the eardrum, there is a problem that it is difficult to measure the intracerebral sound with high accuracy because the sound directly transmitted from the ear canal is picked up greatly. In addition, there is a problem that the microphone cannot be installed near the eardrum, and the microphone cannot be installed at the optimum position for collecting the sound in the head.

特開２０１５−１２６２６７号公報Japanese Unexamined Patent Publication No. 2015-126267

本発明は、こうした問題に鑑みてなされたものであり、より鼓膜に近い位置にマイクロフォンを設置することができ、かつ、外耳道の振動を拾うことを低減でき、頭内音を高精度で計測可能であるとともに、個人差がある外耳道及び耳口形状に対応して鼓膜近傍にマイクロフォンを設置可能なイヤホン型マイクロフォンを提供することを目的とする。 The present invention has been made in view of these problems, and the microphone can be installed at a position closer to the eardrum, the ear canal vibration can be reduced, and the intracranial sound can be measured with high accuracy. It is an object of the present invention to provide an earphone type microphone in which a microphone can be installed near the eardrum according to the shape of the ear canal and the ear canal, which varies from person to person.

本発明は、上述の目的を達成するために、以下の手段を採った。 The present invention has adopted the following means in order to achieve the above-mentioned object.

本発明にかかるイヤホン型マイクロフォンは、
頭内音を測定するためのイヤホン型マイクロフォンにおいて、
少なくとも鼓膜側に集音部が配置されるマイクロフォンと、
可撓性の線状部材でコイル状に形成されており、前記マイクロフォンが先端に取付けられ、前記マイクロフォンを外耳道に接触することなく外耳道内に保持するマイクロフォン保持部材と、
前記マイクロフォンに接続されてなり、前記マイクロフォンで頭内音から変換された電気信号を伝達するケーブルと、を備えていることを特徴とする。 The earphone type microphone according to the present invention is
In an earphone type microphone for measuring intracerebral sound
At least a microphone with a sound collecting part on the eardrum side,
A microphone holding member which is formed in a coil shape by a flexible linear member, the microphone is attached to the tip, and the microphone is held in the ear canal without contacting the ear canal.
It is characterized in that it is connected to the microphone and includes a cable for transmitting an electric signal converted from an intracerebral sound by the microphone.

本発明にかかるイヤホン型マイクロフォンによれば、鼓膜の近傍にマイクロフォンの集音部が鼓膜側となるように設置されるので、頭内音を高精度で計測可能となる。また、可撓性を有する線状部材をコイル状に形成したマイクロフォン保持部材に取付けられているので、外耳道から伝達される音を拾いにくく、ノイズが計測される可能性を低減することができる。 According to the earphone type microphone according to the present invention, since the sound collecting portion of the microphone is installed near the eardrum so as to be on the eardrum side, it is possible to measure the intracerebral sound with high accuracy. Further, since the flexible linear member is attached to the microphone holding member formed in a coil shape, it is difficult to pick up the sound transmitted from the ear canal, and the possibility of noise measurement can be reduced.

また、本発明にかかるイヤホン型マイクロフォンにおいて、
前記ケーブルは、コイル状のマイクロフォン保持部材内部に、外耳道内ではマイクロフォン保持部材に接触することなく配置されていることを特徴とするものであってもよい。 Further, in the earphone type microphone according to the present invention,
The cable may be characterized in that it is arranged inside the coiled microphone holding member without contacting the microphone holding member in the ear canal.

かかる構成を採用することによって、ケーブルが邪魔になることなく、イヤホン型マイクロフォンのマイクロフォンを鼓膜近傍に配置することができる。 By adopting such a configuration, the microphone of the earphone type microphone can be arranged near the eardrum without the cable getting in the way.

さらに、本発明にかかるイヤホン型マイクロフォンにおいて、前記マイクロフォン保持部材は、外耳道に適合するように湾曲可能に形成されていることを特徴とするものであってもよい。 Further, in the earphone type microphone according to the present invention, the microphone holding member may be characterized in that it is formed so as to be bendable so as to fit in the ear canal.

マイクロフォン保持部材として、可撓性を有する線状部材をコイル状に形成したものを使用することで、マイクロフォン保持部材を自由に湾曲させることができるので、個人差がある外耳道及び耳口形状に応じて取付けることができる。また、コイル状とすることによって、使用する者の外耳道の長さに応じてマイクロフォン保持部材の長さを変更することができるので、個人差に関わらず、マイクロフォンを鼓膜の近傍に設置することができる。 By using a flexible linear member formed into a coil as the microphone holding member, the microphone holding member can be freely curved, so that the shape of the ear canal and the ear canal varies from person to person. Can be installed. In addition, the coil shape allows the length of the microphone holding member to be changed according to the length of the ear canal of the user, so that the microphone can be installed near the eardrum regardless of individual differences. it can.

さらに、本発明にかかるイヤホン型マイクロフォンにおいて、前記マイクロフォン保持部材は、マイクロフォンが取付けられている側と反対側に耳介に固定可能な耳介固定部を備えていることを特徴とするものであってもよい。 Further, in the earphone type microphone according to the present invention, the microphone holding member is characterized by having an auricle fixing portion that can be fixed to the auricle on the side opposite to the side to which the microphone is attached. You may.

耳介固定部を設けることによって、誤ってマイクロフォンを外耳道内に奥深く設置しすぎることを防止することができる。 By providing the pinna fixation portion, it is possible to prevent the microphone from being accidentally installed too deeply in the ear canal.

図１は、実施形態にかかるイヤホン型マイクロフォン１００の側面図である。FIG. 1 is a side view of the earphone type microphone 100 according to the embodiment. 図２は、実施形態にかかるイヤホン型マイクロフォン１００を耳に取付けた状態を示す模式図である。FIG. 2 is a schematic view showing a state in which the earphone type microphone 100 according to the embodiment is attached to an ear. 図３は、実施形態にかかるイヤホン型マイクロフォン１００を使用して頭内音を計測する状態を示す模式図である。FIG. 3 is a schematic view showing a state in which the headphone sound is measured using the earphone type microphone 100 according to the embodiment.

以下、本発明の実施形態について図面に沿って詳細に説明する。なお、以下に説明する実施形態及び図面は、本発明の実施形態の一部を例示するものであり、これらの構成に限定する目的に使用されるものではない。また、各図において対応する構成要素には同一又は類似の符号が付されている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The embodiments and drawings described below exemplify a part of the embodiments of the present invention, and are not used for the purpose of limiting to these configurations. Further, the corresponding components in each figure are designated by the same or similar reference numerals.

本発明にかかるイヤホン型マイクロフォン１００は、頭内音（頭内伝達関数）を計測するためのものである。頭内音とは、音源位置から脂肪組織や頭蓋等を含む頭内を通過して鼓膜に伝達される音響音である。そのため、鼓膜５０の近傍で計測することがより高い計測に資することになる。 The earphone-type microphone 100 according to the present invention is for measuring an intracerebral sound (intra-head transfer function). The intracranial sound is an acoustic sound transmitted from the sound source position through the head including adipose tissue and the skull to the eardrum. Therefore, measuring in the vicinity of the eardrum 50 contributes to higher measurement.

本実施形態にかかるイヤホン型マイクロフォン１００の側面図が図１に示されている。本実施形態にかかるイヤホン型マイクロフォン１００は、マイクロフォン１０と、マイクロフォン保持部材２０と、マイクロフォン１０と接続されたケーブル３０と、を備えている。 A side view of the earphone-type microphone 100 according to the present embodiment is shown in FIG. The earphone-type microphone 100 according to the present embodiment includes a microphone 10, a microphone holding member 20, and a cable 30 connected to the microphone 10.

マイクロフォン１０は、図２に示すように外耳道４０内において鼓膜５０の近傍に設置され、鼓膜５０の近傍の音を計測するためのものである。マイクロフォン１０は、指向性のものを使用するとよい。かかるマイクロフォン１０を使用することによって、鼓膜側からの音を効率よく計測することができるからである。もちろん、無指向性又は双指向性のものを排除するものではなく、必要に応じて採用することができる。かかるマイクロフォン１０を使用することで、鼓膜側からの音と、耳口外部からの音の両方を計測することが可能となる。マイクロフォン１０は、外耳道４０に接触することがなく、かつ外耳道４０との間に十分な隙間が形成される程度の小型のものを採用することが好ましい。 As shown in FIG. 2, the microphone 10 is installed in the vicinity of the eardrum 50 in the ear canal 40 and is for measuring the sound in the vicinity of the eardrum 50. As the microphone 10, it is preferable to use a directional microphone. This is because the sound from the eardrum side can be efficiently measured by using the microphone 10. Of course, omnidirectional or bidirectional ones are not excluded, and can be adopted as needed. By using such a microphone 10, it is possible to measure both the sound from the eardrum side and the sound from the outside of the ear opening. It is preferable to use a microphone 10 having a small size that does not come into contact with the ear canal 40 and that a sufficient gap is formed between the microphone and the ear canal 40.

マイクロフォン保持部材２０は、マイクロフォン１０を鼓膜５０の近傍に保持するためのものである。マイクロフォン保持部材２０は、可撓性を有する金属からなる線状部材によってコイル状に形成されている。コイルの巻数、ピッチは、特に限定するものではないが、マイクロフォン保持部材２０の長さを任意に変更することができるようにコイルの螺旋が密着するがことないものを使用することが好ましい。また、コイル径は必ずしも一定である必要はなく、マイクロフォン１０側に近づくほどコイル径が短くなるテーパー状に形成したり、コイル径が場所によって変化したりするものであってもよい。コイルの長さは、人間の耳口から鼓膜５０までの距離より若干短くなるように長さを変更可能に形成されている。マイクロフォン保持部材２０の先端には、マイクロフォン１０が取付けられている。取り付け方法は特に限定するものではないが、好ましくは、マイクロフォン１０がコイルには直接接することのないように、マイクロフォン１０に接続されたケーブル３０をコイルに固定することが望ましい。このようにすることによって、マイクロフォン１０に外耳道４０の振動が伝達されることを低減することができる。 The microphone holding member 20 is for holding the microphone 10 in the vicinity of the eardrum 50. The microphone holding member 20 is formed in a coil shape by a linear member made of a flexible metal. The number of turns and the pitch of the coil are not particularly limited, but it is preferable to use one in which the spirals of the coil do not come into close contact with each other so that the length of the microphone holding member 20 can be arbitrarily changed. Further, the coil diameter does not necessarily have to be constant, and the coil diameter may be formed in a tapered shape in which the coil diameter becomes shorter as it approaches the microphone 10 side, or the coil diameter may change depending on the location. The length of the coil is formed so that the length can be changed so as to be slightly shorter than the distance from the human ear opening to the eardrum 50. A microphone 10 is attached to the tip of the microphone holding member 20. The attachment method is not particularly limited, but it is preferable to fix the cable 30 connected to the microphone 10 to the coil so that the microphone 10 does not come into direct contact with the coil. By doing so, it is possible to reduce the transmission of the vibration of the ear canal 40 to the microphone 10.

マイクロフォン保持部材２０は、マイクロフォン１０が取付けられている側と反対側に耳介に取付けることができるように、コイルを形成している部分と連通した耳介固定部２５が設けられている。本実施形態においては、金属からなる線状部材を耳介に取付可能な大きさに湾曲させて形成されている。かかる耳介固定部２５で耳に固定することで、マイクロフォン１０を鼓膜５０の近傍に設置することができ、かつ、マイクロフォン１０が外耳道４０に深く入りすぎて鼓膜５０に接触することを防止することができる。 The microphone holding member 20 is provided with an auricle fixing portion 25 communicating with a portion forming a coil so that the microphone holding member 20 can be attached to the auricle on the side opposite to the side on which the microphone 10 is attached. In the present embodiment, a linear member made of metal is curved to a size that can be attached to the auricle. By fixing to the ear with the auricle fixing portion 25, the microphone 10 can be installed in the vicinity of the eardrum 50, and the microphone 10 can be prevented from entering the ear canal 40 too deeply and coming into contact with the eardrum 50. Can be done.

ケーブル３０は、マイクロフォン１０で計測された頭内音が変換された信号を伝達するものである。ケーブル３０は、マイクロフォン１０に接続され、マイクロフォン保持部材２０のコイル径内を通じて外部に通じている。そのため、イヤホン型マイクロフォン１００を耳に装着する際に、ケーブル３０が邪魔になることなく、マイクロフォン１０を鼓膜５０の近傍まで設置することができる。 The cable 30 transmits a signal in which the in-head sound measured by the microphone 10 is converted. The cable 30 is connected to the microphone 10 and leads to the outside through the inside of the coil diameter of the microphone holding member 20. Therefore, when the earphone type microphone 100 is attached to the ear, the microphone 10 can be installed up to the vicinity of the eardrum 50 without the cable 30 getting in the way.

以上のようにして作製されたイヤホン型マイクロフォン１００は、図２に示すように、マイクロフォン保持部材２０をマイクロフォン１０側から外耳道４０内に挿入し、耳介固定部２５を耳に固定することで、鼓膜５０の近傍にマイクロフォン１０を設置することができる。なお、イヤホン型マイクロフォン１００を装着する前に、光計測器等で外耳道４０の長さを計測し、マイクロフォン保持部材２０の長さを使用する人に合わせて調整した後に装着することが好ましい。こうした状態で図３に示すように、耳全体をイヤーマフ６０で覆い、音源７０からの音を脂肪組織や頭蓋等を含む頭内を通過した際の音の減衰及び時間差を含む頭内伝達関数（頭内音）として計測する。 In the earphone type microphone 100 produced as described above, as shown in FIG. 2, the microphone holding member 20 is inserted into the external auditory canal 40 from the microphone 10 side, and the auricle fixing portion 25 is fixed to the ear. The microphone 10 can be installed in the vicinity of the eardrum 50. Before wearing the earphone type microphone 100, it is preferable to measure the length of the external auditory canal 40 with an optical measuring instrument or the like, adjust the length of the microphone holding member 20 according to the user, and then wear the microphone. In this state, as shown in FIG. 3, the entire ear is covered with the ear muff 60, and the head-related transfer function including the attenuation and time difference of the sound when the sound from the sound source 70 passes through the head including the adipose tissue and the skull ( Measure as intracerebral sound).

かかる実施形態にかかるイヤホン型マイクロフォン１００によれば、マイクロフォン１０が鼓膜５０の近傍に設置されるので、より高い精度で頭内音を計測することができる。また、マイクロフォン１０が外耳道４０の振動を拾う可能性を低く抑えることができ、さらに高精度で頭内音を計測することができる。また、設置する際には、マイクロフォン保持部材２０を可撓性のある金属製の線状部材をコイル状に形成しているので、外耳道４０や耳口形状に合わせて変形させて、使用する者に対応させて設置することができる。特に、鼓膜５０までの距離は、人によって異なるがマイクロフォン保持部材２０をコイル状に作製しておくことで、耳介固定部２５とマイクロフォン１０までの距離を変更することができるので、人に応じてマイクロフォン保持部材２０の長さを変更することにより、好適に鼓膜５０の近傍にマイクロフォン１０を設置することができる。 According to the earphone type microphone 100 according to the embodiment, since the microphone 10 is installed in the vicinity of the eardrum 50, it is possible to measure the intracerebral sound with higher accuracy. In addition, the possibility that the microphone 10 picks up the vibration of the ear canal 40 can be suppressed to a low level, and the intracerebral sound can be measured with higher accuracy. Further, at the time of installation, since the microphone holding member 20 is formed of a flexible metal linear member in a coil shape, a person who uses it by deforming it according to the shape of the ear canal 40 or the ear canal. It can be installed in correspondence with. In particular, the distance to the eardrum 50 differs depending on the person, but by making the microphone holding member 20 into a coil shape, the distance between the auricle fixing portion 25 and the microphone 10 can be changed. By changing the length of the microphone holding member 20, the microphone 10 can be preferably installed in the vicinity of the eardrum 50.

上述した実施形態で示すように、頭内音を計測する計測機器として産業上利用可能である。 As shown in the above-described embodiment, it can be industrially used as a measuring device for measuring intracerebral sound.

１０…マイクロフォン、２０…マイクロフォン保持部材、２５…耳介固定部、３０…ケーブル、４０…外耳道、５０…鼓膜、６０…イヤーマフ、７０…音源、１００…イヤホン型マイクロフォン 10 ... Microphone, 20 ... Microphone holding member, 25 ... Auricle fixing part, 30 ... Cable, 40 ... Ear canal, 50 ... Eardrum, 60 ... Ear muff, 70 ... Sound source, 100 ... Earphone type microphone

Claims (4)

頭内音を測定するためのイヤホン型マイクロフォンにおいて、
少なくとも鼓膜側に集音部が配置されるマイクロフォンと、
可撓性の線状部材でコイル状に形成されており、前記マイクロフォンが先端に取付けられ、前記マイクロフォンを外耳道に接触することなく外耳道内に保持するマイクロフォン保持部材と、
前記マイクロフォンに接続されてなり、前記マイクロフォンで頭内音から変換された電気信号を伝達するケーブルと、を備えていることを特徴とするイヤホン型マイクロフォン。 In an earphone type microphone for measuring intracerebral sound
At least a microphone with a sound collecting part on the eardrum side,
A microphone holding member which is formed in a coil shape by a flexible linear member, the microphone is attached to the tip, and the microphone is held in the ear canal without contacting the ear canal.
An earphone-type microphone that is connected to the microphone and includes a cable that transmits an electric signal converted from an intracerebral sound by the microphone. 前記ケーブルは、コイル状の前記マイクロフォン保持部材内部に、外耳道内では前記マイクロフォン保持部材に接触することなく配置されていることを特徴とする請求項１に記載のイヤホン型マイクロフォン。 The earphone-type microphone according to claim 1, wherein the cable is arranged inside the coil-shaped microphone holding member without contacting the microphone holding member in the ear canal. 前記マイクロフォン保持部材は、外耳道に適合するように湾曲可能に形成されていることを特徴とする請求項１又は２に記載のイヤホン型マイクロフォン。 The earphone-type microphone according to claim 1 or 2, wherein the microphone holding member is formed so as to be bendable so as to fit in the ear canal. 前記マイクロフォン保持部材は、前記マイクロフォンが取付けられている側と反対側に耳介に固定可能な耳介固定部を備えていることを特徴とする請求項１から３のいずれか１項に記載のイヤホン型マイクロフォン。
The method according to any one of claims 1 to 3, wherein the microphone holding member includes an auricle fixing portion that can be fixed to the auricle on the side opposite to the side to which the microphone is attached. Earphone type microphone.
JP2019221538A 2019-12-06 2019-12-06 earphone type microphone Active JP7403296B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019221538A JP7403296B2 (en) 2019-12-06 2019-12-06 earphone type microphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019221538A JP7403296B2 (en) 2019-12-06 2019-12-06 earphone type microphone

Publications (2)

Publication Number Publication Date
JP2021093573A true JP2021093573A (en) 2021-06-17
JP7403296B2 JP7403296B2 (en) 2023-12-22

Family

ID=76310804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019221538A Active JP7403296B2 (en) 2019-12-06 2019-12-06 earphone type microphone

Country Status (1)

Country Link
JP (1) JP7403296B2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019169836A (en) 2018-03-23 2019-10-03 株式会社Ｊｖｃケンウッド Microphone system, and sound collection method
US11477556B2 (en) 2018-07-24 2022-10-18 Sony Corporation Sound collecting device

Also Published As

Publication number Publication date
JP7403296B2 (en) 2023-12-22

Similar Documents

Publication Publication Date Title
US9055363B2 (en) Headset system comprising a noise dosimeter
US10357403B2 (en) Wireless earplug with improved sensitivity and form factor
US20050185814A1 (en) Ear-hook earphone with microphone
US20130010997A1 (en) Auricle-installed apparatus
CN110291797B (en) Sound pickup apparatus and sound pickup method
CN110012373B (en) In-ear device
JP2019054337A (en) Earphone device, headphone device, and method
US20190033505A1 (en) Ear-worn electronic device waveguide extension for inner ear waveform transmission
JP7020398B2 (en) Wearable device
CN110100456B (en) Sound collection device
JP7403296B2 (en) earphone type microphone
JP2002369295A (en) Sound collector and cover for earphone
US20200092632A1 (en) Hearing Device Including a Sensor and Hearing System Including Same
KR102100845B1 (en) Compensating a hearing impairment apparatus with external microphone
KR102656444B1 (en) ear thermometer
JP2009027675A (en) Earphone attachment
US20220174389A1 (en) Earplug, sound collector, and volume measurement system
KR101665684B1 (en) Earphone
EP1571872A1 (en) Ear-hook earphone with microphone
JPH099383A (en) Ear piece for earphone or the like
JPS5843343Y2 (en) Vibration pickup type ear microphone support part
WO2024089416A1 (en) Improvements in or relating to ear apparatus
JP2020163098A (en) Ear plug, sound collection device, and sound amount measurement system
KR20160007155A (en) ear tip and ear phone having the same

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20221123

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20230801

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20230808

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20230927

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20231128

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20231212

R150 Certificate of patent or registration of utility model

Ref document number: 7403296

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150