[go: up one dir, main page]

WO2016098382A1 - Microphone d'écouteur de type posé en dehors du canal auditif - Google Patents

Microphone d'écouteur de type posé en dehors du canal auditif Download PDF

Info

Publication number
WO2016098382A1
WO2016098382A1 PCT/JP2015/072815 JP2015072815W WO2016098382A1 WO 2016098382 A1 WO2016098382 A1 WO 2016098382A1 JP 2015072815 W JP2015072815 W JP 2015072815W WO 2016098382 A1 WO2016098382 A1 WO 2016098382A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
hole
sound
space
microphone
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.)
Ceased
Application number
PCT/JP2015/072815
Other languages
English (en)
Japanese (ja)
Inventor
英司 松山
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.)
Star Micronics Co Ltd
Original Assignee
Star Micronics 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 Star Micronics Co Ltd filed Critical Star Micronics Co Ltd
Publication of WO2016098382A1 publication Critical patent/WO2016098382A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/024—Measuring pulse rate or heart rate
    • A61B5/0245—Measuring pulse rate or heart rate by using sensing means generating electric signals, i.e. ECG signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones

Definitions

  • the present invention relates to an ear canal-mounted earphone microphone that is used while being mounted on the ear canal, and more particularly to an ear canal-mounted earphone microphone that is suitable for collecting body sounds.
  • the present invention has been made in view of such circumstances, and an object thereof is to provide an ear canal-mounted earphone microphone that can reduce the outer diameter of the housing while maintaining the sensitivity of the microphone unit. To do.
  • the rear end surface 12Ac of the front member 12A is formed in an annular shape. Further, the inner peripheral surface 12Ad of the front member 12A is configured by a cylindrical surface whose diameter increases in two steps toward the rear.
  • the internal space C of the housing 12 is configured as a sealed space except for the sound guide hole 12a.
  • the speaker unit 20 is positioned in a state where the tip of the sound emitting nozzle 54 is inserted into the second through hole 18b of the gasket 18 from the rear side.
  • the speaker unit 20 generates a sound wave corresponding to the signal current from the drive control circuit, and radiates the sound wave to the sound guide hole 12a through the sound emission hole 52a and the second through hole 18b. It has become.
  • the microphone unit 14 includes a diaphragm 22 and a housing 24 configured to form a front space Cf and a back space Cr on both front and rear sides of the diaphragm 22.
  • the housing 24 is formed with a sound collection hole 24 a and a vent hole 24 b that allow the front space Cf and the back space Cr to communicate with the external space of the housing 24.
  • a sound collecting nozzle 26 formed so as to surround the sound collecting hole 24a is attached to the housing 24 by welding or the like.
  • the diaphragm 22 is housed in the housing 24 together with the support ring 32, the back electrode plate 34, the spacer 36, the conducting member 38, the insulating member 40, and the impedance conversion element 42.
  • the housing 24 includes a conductive cover 44 and a circuit board 46.
  • the back electrode plate 34 has a circular outer shape that is slightly smaller than the outer peripheral surface of the support ring 32 when viewed from the front, and is disposed close to the rear of the diaphragm 22.
  • the back electrode plate 34 has a configuration in which an electret layer 34a is disposed on the front surface of an electrode plate body made of a metal plate.
  • the electret layer 34a is generated by subjecting an insulating film formed on the front surface of the electrode plate body to a polarization treatment with a predetermined charge voltage, thereby applying a predetermined surface potential.
  • the back electrode plate 34 is formed with through holes 34b penetrating the back electrode plate 34 in the front-rear direction at a plurality of locations in the circumferential direction.
  • the impedance conversion element 42 is mounted on the front surface of the circuit board 46. At this time, the impedance conversion element 42 is disposed at a position away from the formation position of the vent hole 24b.
  • the conducting member 38 is a substantially cylindrical member, and is arranged between the circuit board 46 and the back electrode plate 34 so as to conduct between them.
  • the heart rate is about 1 to 3 Hz compared to the case where the vent hole 24b is not formed.
  • the sensitivity level in a low frequency band of 10 Hz or less including the above band is increased by nearly 10 dB.
  • the back space Cr of the diaphragm 22 has expanded to the size of the second space C2 communicating with the rear space Cr due to the formation of the air holes 24b.
  • the expansion of the back space Cr weakens the elasticity of the back space Cr and the stiffness of the diaphragm 22 is reduced, which makes it easier to vibrate.
  • a graph C indicated by a solid line in the figure is a graph showing a sound pressure sensitivity characteristic of the earphone microphone 10 that is attached to the ear canal
  • a graph D indicated by a broken line in the figure is an earphone microphone that is attached to the ear canal according to a modification described later.
  • 10 is a graph showing a sound pressure sensitivity characteristic of 110;
  • a graph E indicated by a two-dot chain line in the figure shows that the space from the sound emitting hole 52a of the speaker unit 20 to the sound collecting hole 24a of the microphone unit 14 in the ear canal-mounted earphone microphone 10 is the interior of the cylindrical member 28. It is a graph which shows the sound pressure sensitivity characteristic at the time of assuming that it is formed with the same cross-sectional shape as space.
  • the ear canal-mounted earphone microphone 10 has a configuration in which the speaker unit 20 is disposed together with the microphone unit 14 in the internal space C of the housing 12, so that the user can enjoy music and the like output from the speaker unit 20. While or using this, the microphone unit 14 can collect the body sound.
  • the microphone unit 14 is arranged in a state where the sound collecting hole 24a is in communication with the sound conducting hole 12a on the rear side of the speaker unit 20, and the speaker unit 20 has the sound emitting hole 52a connected to the sound conducting hole 12a. Therefore, the following effects can be obtained.
  • the outer diameter of the housing 12 can be reduced while maintaining the sensitivity of the microphone unit 14.
  • the sensitivity of the microphone unit 14 in this way, the sound collection performance of biological sound can be maintained.
  • the outer diameter of the housing 12 it is possible to improve the ability to attach to the ear canal, thereby making the ear canal-mounted earphone microphone 10 suitable for long-time use.
  • the internal space C of the housing 12 is configured as a sealed space
  • the housing 24 of the microphone unit 14 has a vent hole 24b for communicating the back space Cr to the external space.
  • the inner space C of the housing 12 is partitioned into a first space C1 that communicates with the front space Cf of the housing 24 and the sound guide hole 12a, and a second space C2 that communicates with the rear space Cr of the housing 24. Therefore, the following effects can be obtained.
  • a gasket 18 is disposed at the front end portion of the internal space C of the housing 12, and the internal space C of the housing 12 is provided in the sound guide hole 12a.
  • First and second through holes 18a and 18b to be communicated are formed, and a cylindrical member 28 extending in the front-rear direction is inserted into the housing 12 in the front end portion of the first through hole 18a.
  • the sound emitting nozzle 54 formed so as to surround the sound emitting hole 52a is attached to the speaker unit 20, and the sound emitting nozzle 54 is inserted into the second through hole 18b.
  • the sound emitting hole 52 a of the speaker unit 20 can be reliably communicated with the sound conducting hole 12 a of the housing 12 by the gasket 18 and the sound emitting nozzle 54.
  • a sound collection nozzle 26 formed so as to surround the sound collection hole 24 a is attached to the housing 24 of the microphone unit 14, and the rear end portion of the cylindrical member 28 is attached to the sound collection nozzle 26. Since they are connected, the sound collection hole 24 a of the microphone unit 14 can be reliably communicated with the sound guide hole 12 a of the housing 12. As a result, the partition between the first space C1 and the second space C2 can be realized with a relatively simple configuration.
  • the microphone unit 14 is an electret condenser microphone
  • a microphone other than this for example, an electrodynamic microphone in which a vent hole is formed in the back space of the diaphragm. is there.
  • the internal space C of the housing 12 is described as being configured as a sealed space, but a configuration in which the internal space C is not configured as a sealed space may be employed.
  • FIG. 5 is a view similar to FIG. 1, showing an ear canal-mounted earphone microphone 110 according to this modification.
  • the basic configuration of the earphone microphone 110 attached to the ear canal is the same as that of the above embodiment, but the shape of the housing 112 and the arrangement of the microphone unit 14 and the speaker unit 20 are the same as those of the above embodiment. It is different from the case of.
  • the sound collection nozzle 26 is not attached to the microphone unit 14 and the sound emission nozzle 54 is not attached to the speaker unit 20 as in the above embodiment.
  • the structure of the gasket 118 and the cylindrical member 128 differs from the case of the said embodiment.
  • the casing 112 of this modification is formed with an outer diameter smaller than that of the casing 12 of the above embodiment.
  • the housing 112 has a configuration in which a front member 112A and a rear member 112B are joined.
  • the rear member 112B has a shape obtained by reducing the rear member 12B of the above embodiment. That is, the rear member 112B is configured as a bottomed cylindrical member extending in the front-rear direction, and the rear end portion is configured as the rear end wall 112Bb.
  • casing 112 is sealed over the perimeter by welding, adhesion
  • casing 112 is comprised as a space sealed except the part of the sound guide hole 112a.
  • the front member 112A is formed so that the rear end of the peripheral wall is slightly thick, and the inner diameter thereof is set to be slightly larger than the outer diameter of the microphone unit 14.
  • the microphone unit 14 is fixed to the rear end portion of the peripheral wall of the front member 112 ⁇ / b> A via the seal material 160 on the outer peripheral surface of the housing 24.
  • the internal space C of the housing 112 is partitioned into a first space C1 communicating with the front space Cf and the sound guide hole 112a and a second space C2 communicating with the back space Cr.
  • the gasket 118 is formed in a cylindrical shape in the rear half and in a columnar shape in the front half, and a through hole 118a extending in the front-rear direction is formed in the front half.
  • the through hole 118a is formed so as to extend downward from the central portion of the gasket 118.
  • the through space 118a allows the internal space C of the housing 112 to communicate with the sound guide hole 112a.
  • the speaker unit 20 of this modification is disposed in a state where the sound emitting hole 52a is in contact with the gasket 118 so that the sound emitting hole 52a faces the through hole 118a of the gasket 118.
  • the sound collection hole 24a and the sound guide hole 112a of the microphone unit 14 are communicated with each other through the internal space of the cylindrical member 128 and the space on the rear end opening side. .
  • the sound emitting hole 52a of the speaker unit 20 can be reliably communicated with the sound guiding hole 112a of the housing 112 by the gasket 118. And thereby, the effect similar to the said embodiment can be acquired.
  • the cylindrical member 128 is interposed between the sound emitting hole 52a of the speaker unit 20 and the sound collecting hole 24a of the microphone unit 14, the internal space of the cylindrical member 128 is used as the speaker.
  • the acoustic signal output from the unit 20 can function as a component of a low-pass filter that makes it difficult for the acoustic signal to reach the sound collection hole 24a of the microphone unit 14.
  • the rear end opening of the cylindrical member 128 is open, a space having a large capacity is formed between the microphone unit 14 and the cylindrical member 128 in the first space C1.
  • the space from the sound emission hole 52a to the sound collection hole 24a is constituted by the internal space of the cylindrical member 128 and the two large capacity spaces on the front and rear sides thereof, thereby functioning as a low-pass filter. Can be increased.
  • the microphone unit 14 and the cylindrical member 128 are arranged separately, and the speaker unit 20 and the cylindrical member 128 are arranged in close contact with each other, so that the housing 12
  • the outer diameter of the earphone microphone 110 can be further reduced, and the assemblability of the earphone microphone 110 attached to the ear canal can be improved.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Cardiology (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Molecular Biology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physiology (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Vascular Medicine (AREA)
  • Medical Informatics (AREA)
  • Acoustics & Sound (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Ophthalmology & Optometry (AREA)
  • Headphones And Earphones (AREA)

Abstract

L'invention concerne un microphone d'écouteur de type posé en dehors du canal auditif, qui est tel que la sensibilité d'une unité microphone est préservée, et le diamètre externe d'un boîtier est réduit. L'objet de l'invention est configuré de sorte qu'une unité haut-parleur (20) est disposée avec l'unité microphone (14), dans un espace interne (C) du boîtier (12). L'unité microphone (14) est disposée en arrière par rapport à l'unité haut-parleur (20) dans un état tel qu'un orifice de capture de son (24a) est mis en communication avec un orifice de guidage de son (12a), et l'unité haut-parleur (20) est disposée dans un état tel qu'un orifice émission de son (52a) est mis en communication avec l'orifice de guidage de son (12a). Ainsi, il est possible de réduire davantage le diamètre externe du boîtier (12) sans réduire la taille de l'unité microphone (14) que dans le cas où l'unité microphone (14) et l'unité haut-parleur (20) sont disposées en parallèle comme dans l'art antérieur. Par conséquent, une baisse de la sensibilité de l'unité microphone (14) est empêchée de manière préventive.
PCT/JP2015/072815 2014-12-17 2015-08-12 Microphone d'écouteur de type posé en dehors du canal auditif Ceased WO2016098382A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014254920A JP2016116153A (ja) 2014-12-17 2014-12-17 外耳道装着型イヤホンマイク
JP2014-254920 2014-12-17

Publications (1)

Publication Number Publication Date
WO2016098382A1 true WO2016098382A1 (fr) 2016-06-23

Family

ID=56126286

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/072815 Ceased WO2016098382A1 (fr) 2014-12-17 2015-08-12 Microphone d'écouteur de type posé en dehors du canal auditif

Country Status (2)

Country Link
JP (1) JP2016116153A (fr)
WO (1) WO2016098382A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114845193A (zh) * 2021-02-02 2022-08-02 深圳市三诺数字科技有限公司 一种耳机及具有该耳机的电子设备
CN115002594A (zh) * 2022-04-21 2022-09-02 北京荣耀终端有限公司 可穿戴音频输出装置
US12470861B2 (en) 2020-08-26 2025-11-11 Sonion Nederland B.V. Microphone unit arranged on top of receiver unit nozzle
WO2025246659A1 (fr) * 2024-05-29 2025-12-04 歌尔股份有限公司 Écouteur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102571141B1 (ko) 2018-12-07 2023-08-25 삼성전자주식회사 스피커와 마이크를 포함하는 전자 장치

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60180200U (ja) * 1984-05-10 1985-11-29 ソニー株式会社 補聴器
JPH0591585A (ja) * 1991-09-30 1993-04-09 Nitsuko Corp ヘツドホン
JPH05199577A (ja) * 1991-03-19 1993-08-06 Temuko Japan:Kk イヤ−マイクロフォン
WO2005094118A1 (fr) * 2004-03-25 2005-10-06 Nap Enterprise Co., Ltd. Système suppresseur d'écho d'oscillation
JP2005286500A (ja) * 2004-03-29 2005-10-13 Yashima Denki Kk 補聴器用マイク付きイヤホン
JP2007281711A (ja) * 2006-04-04 2007-10-25 Kenwood Corp イヤーモールド型送受話器及び無線通信装置
WO2008139931A1 (fr) * 2007-05-09 2008-11-20 Nap Enterprise Co., Ltd. Microphone d'écouteur
WO2013147385A1 (fr) * 2012-03-29 2013-10-03 Shin Doo Sik Boîtier insonorisé pour écouteur et écouteur câblé et sans fil le comprenant
JP2014155145A (ja) * 2013-02-13 2014-08-25 Funai Electric Co Ltd イヤホンマイク
JP2014187679A (ja) * 2013-02-20 2014-10-02 Funai Electric Co Ltd イヤホンマイク

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60180200U (ja) * 1984-05-10 1985-11-29 ソニー株式会社 補聴器
JPH05199577A (ja) * 1991-03-19 1993-08-06 Temuko Japan:Kk イヤ−マイクロフォン
JPH0591585A (ja) * 1991-09-30 1993-04-09 Nitsuko Corp ヘツドホン
WO2005094118A1 (fr) * 2004-03-25 2005-10-06 Nap Enterprise Co., Ltd. Système suppresseur d'écho d'oscillation
JP2005286500A (ja) * 2004-03-29 2005-10-13 Yashima Denki Kk 補聴器用マイク付きイヤホン
JP2007281711A (ja) * 2006-04-04 2007-10-25 Kenwood Corp イヤーモールド型送受話器及び無線通信装置
WO2008139931A1 (fr) * 2007-05-09 2008-11-20 Nap Enterprise Co., Ltd. Microphone d'écouteur
WO2013147385A1 (fr) * 2012-03-29 2013-10-03 Shin Doo Sik Boîtier insonorisé pour écouteur et écouteur câblé et sans fil le comprenant
JP2014155145A (ja) * 2013-02-13 2014-08-25 Funai Electric Co Ltd イヤホンマイク
JP2014187679A (ja) * 2013-02-20 2014-10-02 Funai Electric Co Ltd イヤホンマイク

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12470861B2 (en) 2020-08-26 2025-11-11 Sonion Nederland B.V. Microphone unit arranged on top of receiver unit nozzle
CN114845193A (zh) * 2021-02-02 2022-08-02 深圳市三诺数字科技有限公司 一种耳机及具有该耳机的电子设备
CN115002594A (zh) * 2022-04-21 2022-09-02 北京荣耀终端有限公司 可穿戴音频输出装置
WO2025246659A1 (fr) * 2024-05-29 2025-12-04 歌尔股份有限公司 Écouteur

Also Published As

Publication number Publication date
JP2016116153A (ja) 2016-06-23

Similar Documents

Publication Publication Date Title
EP2991376B1 (fr) Appareil de reproduction acoustique et appareil de reproduction acoustique collecteur de sons
TWI695628B (zh) 電聲轉換器
CN109565626B (zh) 具有主动降噪功能的声学开放式耳机
US9762991B2 (en) Passive noise-cancellation of an in-ear headset module
JP2010087810A (ja) 耳穴式骨伝導レシーバ
WO2017023634A1 (fr) Réduction de bruit utilisant écouteur intra-auriculaire
JP2021034775A (ja) イヤホン
CN110418225B (zh) 一种麦克风装置
JP6478317B2 (ja) 外耳道装着型イヤホンマイク
WO2016098382A1 (fr) Microphone d'écouteur de type posé en dehors du canal auditif
CN112913256A (zh) 双层麦克风保护
CN111034216A (zh) 音响输出设备
EP3664466A1 (fr) Écouteur avec microphone de rétroaction active de suppression du bruit disposé sur le côté arrière d'un diaphragme de haut-parleur et procédé de fabrication d'un tel un écouteur
JP5872722B1 (ja) 連通管付きイヤホン
JP7375758B2 (ja) 音響出力装置
JP2022031171A (ja) 閉塞低減のための聴覚装置およびその構成要素
EP4096237A1 (fr) Dispositif auditif comprenant un composant de trajet sonore
WO2016181431A1 (fr) Oreillette à isolation acoustique avec section de communication
WO2014061646A1 (fr) Écouteur
US10334356B2 (en) Microphone for a hearing aid
TW202215857A (zh) 驅動器保持器、驅動器模組及耳機
WO2016098381A1 (fr) Microphone de type posé en dehors du canal auditif
CN215678914U (zh) 一种智能眼镜
US20250324194A1 (en) Vibration insulation suspension for ear wearable audio components
JP5269569B2 (ja) コンデンサマイクロホンユニットおよびコンデンサマイクロホン

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15869591

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15869591

Country of ref document: EP

Kind code of ref document: A1