WO2018139720A1 - Écouteur ayant un son combiné d'écouteur de type canal et d'écouteur de type ouvert - Google Patents

Écouteur ayant un son combiné d'écouteur de type canal et d'écouteur de type ouvert Download PDF

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Publication number
WO2018139720A1
WO2018139720A1 PCT/KR2017/007385 KR2017007385W WO2018139720A1 WO 2018139720 A1 WO2018139720 A1 WO 2018139720A1 KR 2017007385 W KR2017007385 W KR 2017007385W WO 2018139720 A1 WO2018139720 A1 WO 2018139720A1
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WO
WIPO (PCT)
Prior art keywords
sound
earphone
frame
conduit
insulation
Prior art date
Application number
PCT/KR2017/007385
Other languages
English (en)
Korean (ko)
Inventor
이태훈
Original Assignee
주식회사 공훈
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 주식회사 공훈 filed Critical 주식회사 공훈
Publication of WO2018139720A1 publication Critical patent/WO2018139720A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
    • H04R25/652—Ear tips; Ear moulds
    • 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
    • H04R1/105—Earpiece supports, e.g. ear hooks
    • 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
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type
    • 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
    • H04R1/1016—Earpieces of the intra-aural type
    • 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
    • H04R1/1058—Manufacture or assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/15—Determination of the acoustic seal of ear moulds or ear tips of hearing devices

Definitions

  • the present invention relates to an earphone that combines the sound of a kernel type earphone and an open type earphone, and more particularly, a modified acoustic conduit that creates a plurality of small holes in the acoustic conduit of the kernel type earphone to improve the earphone sound in the ear when the user wears the earphone.
  • the present invention relates to earphones that combine the sound of a kernel-type earphone and an open-type earphone to protrude through a plurality of small holes formed in an acoustic conduit.
  • Earphones are small speaker devices that are mounted or inserted into the user's ears to listen to sound sources, and are generally classified into open earphones and kernel earphones, and acoustically connect connectors and electrical signals for connection with sound source reproducing apparatus such as mobile phones and MP3s. It consists of magnet inside the speaker, voice coil, diagram, and housing that protects the outside of the speaker and prevents the leakage of sound.
  • the sound enhancement technology of earphones is made by varying the material and arrangement of the voice coil and diagram constituting the speaker, or by changing the shape of the housing or material such as plastic, wood, metal, etc. to correct and absorb the sound.
  • a separate attachment connected to the housing of the earphone, such as a silicon tip may be in close contact with the user's ear or may additionally induce a sound enhancement effect by using a noise canceling technology that attenuates external noise.
  • the above-described conventional techniques for earphone sound are mainly focused on kernel earphones, and do not accommodate many acoustic advantages such as openness and sympathy of open earphones. It is complaining about the relative fatigue compared to the crowded and open earphones.
  • the kernel-type earphones are often removed in spite of the ease of detachment of the earphones compared to the open-type earphones with respect to the mobility of the earphones. Therefore, the user pays additional costs for the accessories for preventing detachment of individual earphones, such as ear hooks and compliant foams, in addition to the earphones, and most of the accessories related to these are exclusive foreign products and require urgent development of substitutes.
  • the acoustic conduit of the kernel-type earphone is modified so that the kernel-type earphone can feel the open and three-dimensional sound of the open earphone, and the earphone so that the earphone can be in close contact with the ear through the device to protrude in the ear of the user.
  • the present invention provides an earphone that combines the sound of a kernel type earphone and an open type earphone so as to alleviate the detachment phenomenon of the earphone without a separate earphone accessory such as a compliant foam, and to greatly improve the acoustic feeling of the earphone user.
  • the housing with a built-in speaker for the sound generation
  • the housing is coupled with the acoustic conduit, the acoustic conduit for delivering the sound to the user's ear
  • an insulation that is coupled to the frame and the frame to provide adhesion in the ear of the user
  • the acoustic conduit has a shape in which the first acoustic conduit and the second acoustic conduit are combined, and the surface of the first acoustic conduit is open and A sound hole for outputting three-dimensional sound is formed, and when the earphone is inserted into the user's ear, the first sound conduit may protrude from the insulation toward the inside of the user's ear canal.
  • a plurality of acoustic holes are formed on the surface of the first acoustic conduit, and the sound insulation of the kernel-type earphone is provided by the insulation, and the three-dimensional sound sense of the open earphone is provided by the first acoustic conduit protruding from the insulation. .
  • the acoustic conduit is detachably coupled to the coupling part of the connector of the housing, and the second acoustic conduit is provided with a movement guide for guiding the rotational movement of the frame. Can be combined.
  • the frame includes a frame axis therein for guiding rotational movement along the surface of the acoustic conduit, and when the earphone is inserted into the user's ear, the first fixing protrusion provided at one end of the rotationally moved frame is fixed to the connection portion of the housing.
  • the frame is fixed by being fastened with the protrusion groove, and the second fixing protrusion provided at the other end of the frame may be for fixing the insulation.
  • the frame axis may rotate the acoustic conduit in the frame along the movement guide formed in the second acoustic conduit so that the first acoustic conduit may protrude toward the inner ear canal.
  • the first fixing protrusion may be coupled to the fixing protrusion groove of the housing, and the first acoustic conduit may be fixed inside the outer ear canal by coupling the first fixing protrusion and the fixing protrusion groove of the housing while protruding from the insulation.
  • Protrusions are formed on the surface of the insulation, and the protrusions may be made of a soft material.
  • the protrusions formed on the surface of the insulation may be formed to bend in the opposite direction of the rotational movement in the ear canal when the insulation combined with the second fixing protrusion of the frame rotates.
  • Earphone by allowing the first acoustic conduit having a plurality of sound holes on the surface of the acoustic conduit of the kernel-type earphone can be projected in the ear of the user, the sound of the sound based on the sound insulation of the kernel-type earphone
  • the open and three-dimensional sound of the open earphone can be delivered at the same time.
  • the existing kernel-type earphone user can additionally provide the sound of the open earphone simultaneously, and the existing open-type earphone user can additionally provide the sound insulation of the kernel-type earphone.
  • the sound insulation of the earphone is further enhanced and stripping phenomenon
  • the user can conveniently use the earphone without any additional cost without any additional sound-related accessories such as ear hook and compliform, which can be additionally used in the conventional kernel-type earphone.
  • FIG. 1 is an exploded view of an earphone combining sound of a kernel-type earphone and an open earphone according to an embodiment of the present invention.
  • FIG. 2 shows an earphone according to an embodiment of the present invention.
  • Figure 3 shows a user wearing state of the earphone according to an embodiment of the present invention.
  • FIG. 4 is a perspective view of an earphone according to an embodiment of the present invention.
  • the housing with a built-in speaker for the sound generation
  • the housing is coupled with the acoustic conduit, the acoustic conduit for delivering the sound to the user's ear
  • an insulation that is coupled to the frame and the frame to provide adhesion in the ear of the user
  • the acoustic conduit has a shape in which the first acoustic conduit and the second acoustic conduit are combined, and the surface of the first acoustic conduit is open and A sound hole for outputting three-dimensional sound is formed, and when the earphone is inserted into the user's ear, the first sound conduit may protrude from the insulation toward the inside of the user's ear canal.
  • a plurality of acoustic holes are formed on the surface of the first acoustic conduit, and the sound insulation of the kernel-type earphone is provided by the insulation, and the three-dimensional sound sense of the open earphone is provided by the first acoustic conduit protruding from the insulation. .
  • the acoustic conduit is detachably coupled to the coupling part of the connector of the housing, and the second acoustic conduit is provided with a movement guide for guiding the rotational movement of the frame. Can be combined.
  • the frame includes a frame axis therein for guiding rotational movement along the surface of the acoustic conduit, and when the earphone is inserted into the user's ear, the first fixing protrusion provided at one end of the rotationally moved frame is fixed to the connection portion of the housing.
  • the frame is fixed by being fastened with the protrusion groove, and the second fixing protrusion provided at the other end of the frame may be for fixing the insulation.
  • the frame axis may rotate the acoustic conduit in the frame along the movement guide formed in the second acoustic conduit so that the first acoustic conduit may protrude toward the inner ear canal.
  • the first fixing protrusion may be coupled to the fixing protrusion groove of the housing, and the first acoustic conduit may be fixed inside the outer ear canal by coupling the first fixing protrusion and the fixing protrusion groove of the housing while protruding from the insulation.
  • Protrusions are formed on the surface of the insulation, and the protrusions may be made of a soft material.
  • the protrusions formed on the surface of the insulation may be formed to bend in the opposite direction of the rotational movement in the ear canal when the insulation combined with the second fixing protrusion of the frame rotates.
  • FIG. 1 illustrates an exploded view of an earphone combining sound of a kernel-type earphone and an open earphone according to an embodiment of the present invention
  • FIG. 2 illustrates an earphone according to an embodiment of the present invention
  • FIG. 3 illustrates an embodiment of the present invention.
  • Figure 4 shows a user wearing state of the earphone according to
  • Figure 4 shows a perspective view of the earphone according to an embodiment of the present invention.
  • the housing (1) with a built-in speaker for sound generation the sound is coupled to the housing (1) to transfer the sound in the ear of the user Conduit 60, a frame 70 coupled to the acoustic conduit 60 and an insulation 80 coupled with the frame 70 to provide adhesion in the ear of the user, the acoustic conduit 60 is the first sound
  • the conduit 50 and the second acoustic conduit 40 are coupled to each other, and the surface of the first acoustic conduit 50 is provided with an acoustic hole for outputting an open and three-dimensional sound of the open earphone.
  • the first acoustic conduit 50 may protrude from the insulation 80 toward the inside of the ear canal of the user.
  • the housing 1 can be connected with a cable 2 for transmitting a signal from a device capable of providing a sound source.
  • the housing 1 may have a built-in speaker (not shown) for outputting a signal provided through the cable 2 to the sound.
  • a device capable of providing a sound source may be, for example, a wearable device such as a mobile phone, a tablet PC, a radio, a personal portable music player (eg, an MP3), a smart watch, or the like, but is not limited thereto.
  • any electronic device capable of providing a signal for converting a sound source into a sound and outputting the sound source may be included in a device capable of providing a sound source.
  • the housing 1 may be connected to a device capable of providing a sound source in a wireless manner in addition to the wired cable 2.
  • the acoustic conduit 60 includes a second acoustic conduit 40 having a movement guide 41 formed on a surface thereof for rotational movement of the frame 70 and at least one sound hole 51 for realizing an open earphone sound. It may include a first acoustic conduit 50 formed.
  • a plurality of sound holes 51 are formed on the surface of the first acoustic conduit 50, and the insulation 80 provides sound insulation of the kernel-type earphone, and at the same time, protrudes from the insulation 80. 50) can provide a three-dimensional sound of the open earphone.
  • a plurality of sound holes 51 may be formed on the surface of the first sound conduit 50 to allow sound to propagate omnidirectionally in the user's ear.
  • the acoustic conduit 60 is detachably coupled to the housing 1 with the coupler 32 of the connection part 3 of the housing 1, and the second acoustic conduit 40 guides the rotational movement of the frame 70.
  • the movement guide 41 is formed therein, and the frame 70 may be coupled to the housing 1 by being fastened with the fixing protrusion groove 31 of the connection part 3 of the housing 1.
  • the connection part 3 includes a coupler 32 to which an acoustic conduit 60 for transmitting sound to be generated through the housing 1 to the user's ear is included, and when the earphone is inserted into the user's ear.
  • the fixing protrusion groove 31 may be formed to move the frame 70 so that the first fixing protrusion 72 may be fastened.
  • the frame 70 includes a frame axis 71 for guiding rotational movement along the surface of the acoustic conduit 60, and when the earphone is inserted into the user's ear, the frame 70 is rotated and moved.
  • the first fixing protrusion 72 provided at one end of the) is fixed to the fixing protrusion groove 31 of the connecting portion 3 of the housing 1 to fix the frame 70, and the second fixing protrusion 72 is provided at the other end of the frame 70.
  • the fixing protrusion 73 may be for fixing the insulation 80.
  • the frame 70 has a frame shaft 71 that rotates the frame 70 along the movement guide 41 on the surface of the second acoustic conduit 40 when the earphone is inserted into the user's ear.
  • the frame 70 included in the interior, and after being rotated a predetermined number of times, is engaged with the fixing protrusion groove 31 of the connecting portion 3 to protrude from the insulation 80 toward the inner ear of the user. It may include a fixing protrusion 72 for fixing. In addition, the frame 70 may include a second fixing protrusion 73 for fixing the frame 70 and the insulation 80. The frame 70 may rotate in a predetermined number of times according to the shape of the movement guide 41 on the surface of the second acoustic conduit 40.
  • the frame shaft 71 rotates along the movement guide 41 formed in the second acoustic conduit 40 so that the acoustic conduit 60 rotates in the interior of the frame 70 so as to face the inside of the ear canal. It can be made to protrude.
  • the first fixing protrusion 72 may be coupled to the fixing protrusion groove 31 of the housing 1, and the first acoustic conduit 50 may protrude from the insulation 80 and the first fixing protrusion 72 and the housing.
  • the fixing projection groove 31 of (1) it can be fixed inside the ear canal.
  • the protrusion 81 is formed on the surface of the insulation 80, and the protrusion 81 may be made of a soft material.
  • the insulation 80 is intended to have a close contact with the earphone of the sound of the kernel-type earphone and the open-type earphone according to an embodiment of the present invention in the ear of the user, it may be made of soft silicone or rubber material.
  • at least one protrusion 81 may be formed on the surface of the insulation 80 to move in the opposite direction to the rotation of the frame 70.
  • the protrusion 81 formed on the surface of the insulation 80 is formed to be bent in the opposite direction of the rotational movement in the ear canal when the insulation 80 coupled with the second fixing protrusion 73 of the frame 70 rotates. Can be. By being able to bend in the reverse direction of the rotational movement, it is possible to provide a good sound insulation to the user wearing the earphone.
  • earphones combining the sounds of a kernel-type earphone and an open earphone may be stored in the form of a general kernel-type earphone.
  • the acoustic conduit 60 is connected to the housing 1 through the coupler 32 of the connection part 3.
  • the insulation 80 may be coupled to the second fixing protrusion 73 on the surface of the frame 70 to be stored as a general kernel type earphone.
  • the acoustic conduit 60 may include a second acoustic conduit 40 and a first acoustic conduit 50 in which a movement guide 41 for rotating movement of the frame 70 is formed.
  • a minimum number of sound holes 51 eg, 5 or less
  • the sound holes 51 may not be formed at all.
  • the frame 70 may be rotatable along the movement guide 41 of the second acoustic conduit 40 in the frame 70 which may be coupled to the acoustic conduit 60.
  • the frame shaft 71 may be provided inside the frame 70 so as to move closer to the side.
  • the frame shaft 71 may be manufactured in a shape corresponding to the movement guide 41.
  • the threads of the frame shaft 71 may be formed to correspond to the threads of the movement guide 41.
  • a part of the acoustic conduit 60 may protrude into the ear of the user.
  • some or all of the first acoustic conduit 50 may protrude inside the ear canal 90 of the user.
  • the frame 70 is coupled to the fixing projection groove 31 of the housing 1, the first sound conduit 50 for protruding from the insulation 80 to be fixed inside the ear canal 90
  • One fixing protrusion 72 may be included.
  • the frame 70 when inserting the earphone into the ear, the frame 70 may be formed on the surface of the second acoustic conduit 40 due to the friction force of the protrusion 81 and the ear canal 90 and the insertion pressure of the earphone.
  • the rotating guide 41 is naturally rotated automatically close to the housing 1 side along the formed movement guide 41, and the first fixing protrusion 72 of the frame 70 is fixed protrusion groove of the connector 3 of the housing 1. 31, the sound hole 51 of the first acoustic conduit 50 may protrude from the external auditory meatus 90 of the user.
  • the insulation 80 has a rotational force, so that the projection 81 of the surface forms a frictional force according to the pressing, bending, or pushing in the ear of the user, thereby improving the adhesion of the ear canal 90 of the earphone. I can reinforce it. The protrusion 81 of the insulation 80 can effectively prevent unintentional detachment of the earphone.
  • Earphones combining the sound of the kernel-type earphone and the open-type earphone according to an embodiment of the present invention may be considered to be similar in appearance to the kernel-type earphone of the general type, while maintaining the advantages of the kernel-type earphone, the user wears the pressure when wearing such earphone As the sound hole automatically projects into the ear, the open and three-dimensional sound of the open earphone can be simultaneously provided.
  • the pressure at the time of insertion of the earphone into the ear to the rotational movement to increase the adhesion of the ear canal of the ear canal to prevent the detachment phenomenon according to the user's movement the user can use the earphone more comfortably, active.
  • the earphone according to an embodiment of the present invention has a form in which the acoustic conduit is separated and can be combined with the housing through the connection portion, and when the acoustic conduit including the first acoustic conduit excluding the acoustic hole is connected to the existing kernel-type earphone,
  • the acoustic conduit including the first acoustic conduit excluding the acoustic hole is connected to the existing kernel-type earphone.
  • the native sound of the kernel-type earphone may be further reinforced and provided to the user.
  • the first acoustic conduit having a sound hole in the acoustic conduit of the kernel-type earphone provides a earphone that can protrude in the ear of the user, the sound clarity based on the sound insulation of the kernel-type earphone
  • the open and three-dimensional sound of the open earphone can be delivered at the same time, it can provide the sound of the open earphone to the existing kernel-type earphone users, and can provide the sound insulation of the kernel-type earphone to the existing open earphone users.
  • the projection surface of the insulation coupled with the frame that allows the first acoustic conduit to protrude in the ear of the user rotates and causes friction to closely adhere to the user's ear, thereby improving sound insulation of the earphone and involuntary removal of the user.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Headphones And Earphones (AREA)

Abstract

Un écouteur ayant un son combiné d'un écouteur de type canal et d'un écouteur de type ouvert, selon un mode de réalisation de la présente invention, comprend : un boîtier dans lequel est incorporé un haut-parleur conçu pour générer un son ; un conduit sonore couplé au boîtier de façon à transférer un son vers l'intérieur de l'oreille d'un utilisateur ; un cadre couplé au conduit sonore ; et un isolement acoustique couplé au cadre et fournissant une force de contact étroit à l'intérieur de l'oreille de l'utilisateur, le conduit sonore ayant une forme combinée d'un premier conduit sonore et d'un second conduit sonore, le premier conduit sonore ayant un trou sonore formé sur sa surface afin de délivrer un son ouvert et tridimensionnel d'un écouteur de type ouvert, et lorsque l'écouteur est inséré dans l'oreille de l'utilisateur, le premier conduit sonore pouvant faire saillie vers l'intérieur du canal auditif de l'utilisateur à partir de l'isolement acoustique.
PCT/KR2017/007385 2016-04-16 2017-07-11 Écouteur ayant un son combiné d'écouteur de type canal et d'écouteur de type ouvert WO2018139720A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20160045850 2016-04-16
KR10-2017-0013044 2017-01-26
KR1020170013044A KR101762557B1 (ko) 2016-04-16 2017-01-26 커널형이어폰과 오픈형이어폰의 음향을 결합한 이어폰

Publications (1)

Publication Number Publication Date
WO2018139720A1 true WO2018139720A1 (fr) 2018-08-02

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PCT/KR2017/007385 WO2018139720A1 (fr) 2016-04-16 2017-07-11 Écouteur ayant un son combiné d'écouteur de type canal et d'écouteur de type ouvert

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KR (1) KR101762557B1 (fr)
WO (1) WO2018139720A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090010390A (ko) * 2007-07-23 2009-01-30 박기범 이어 러버
JP2009231997A (ja) * 2008-03-21 2009-10-08 Yamaha Corp イヤホン
KR20130136059A (ko) * 2012-06-04 2013-12-12 크레신 주식회사 가변 이어팁
KR101473474B1 (ko) * 2014-08-19 2015-01-13 주식회사 애니모드 크기조절이 가능한 이어커널 적응형 이어폰
KR101503327B1 (ko) * 2014-09-18 2015-03-18 주식회사 애니모드 이어커널 적응형 가변 이어폰

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090010390A (ko) * 2007-07-23 2009-01-30 박기범 이어 러버
JP2009231997A (ja) * 2008-03-21 2009-10-08 Yamaha Corp イヤホン
KR20130136059A (ko) * 2012-06-04 2013-12-12 크레신 주식회사 가변 이어팁
KR101473474B1 (ko) * 2014-08-19 2015-01-13 주식회사 애니모드 크기조절이 가능한 이어커널 적응형 이어폰
KR101503327B1 (ko) * 2014-09-18 2015-03-18 주식회사 애니모드 이어커널 적응형 가변 이어폰

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