WO2018030700A1 - Casque d'écoute sans fil et système d'amplification sonore l'utilisant - Google Patents

Casque d'écoute sans fil et système d'amplification sonore l'utilisant Download PDF

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Publication number
WO2018030700A1
WO2018030700A1 PCT/KR2017/008311 KR2017008311W WO2018030700A1 WO 2018030700 A1 WO2018030700 A1 WO 2018030700A1 KR 2017008311 W KR2017008311 W KR 2017008311W WO 2018030700 A1 WO2018030700 A1 WO 2018030700A1
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WO
WIPO (PCT)
Prior art keywords
sound
sound output
switch
output unit
unit
Prior art date
Application number
PCT/KR2017/008311
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English (en)
Korean (ko)
Inventor
신영호
Original Assignee
아이디액트 주식회사
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
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Application filed by 아이디액트 주식회사 filed Critical 아이디액트 주식회사
Publication of WO2018030700A1 publication Critical patent/WO2018030700A1/fr

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    • 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
    • H04R1/1041—Mechanical or electronic switches, or control elements
    • 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
    • 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
    • H04R1/1025—Accumulators or arrangements for charging
    • 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
    • H04R1/1066—Constructional aspects of the interconnection between earpiece and earpiece support
    • 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
    • H04R1/1075—Mountings of transducers in earphones or headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H04R5/0335—Earpiece support, e.g. headbands or neckrests
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07—Applications of wireless loudspeakers or wireless microphones

Definitions

  • Embodiments of the present invention relate to a wireless headphone and an acoustic amplification system using the same, and more particularly, a wireless headphone and an acoustic amplification system using the same as a wireless speaker of a portable electronic device by mounting the wireless headphone on a holder. It is about.
  • a portable electronic device such as a mobile communication terminal, an MP3 player, a PDA, or a PMP includes a built-in speaker in order to output sound, or a connection port such as an earphone or a headphone is provided.
  • the built-in speaker has a problem that the output of the sound is limited, and earphones or headphones must be worn to listen. That is, despite the fact that it is not a public place where the crowd gathers, it is not necessary to use headphones, etc., but it is inconvenient to use headphones due to the limitation of the output volume of the portable electronic device itself.
  • FIG. 1 is a perspective view schematically showing a state in which an external speaker equipped with a conventional portable electronic device is used.
  • the external speaker 10 includes a cradle 12 constituting an entire skeleton, a reproducing circuit (not shown) installed inside the cradle 12 to reproduce an acoustic signal, and an acoustic signal reproduced through the reproducing circuit. And a first connector 16 provided in the cradle 12 to mount the speaker unit 14 and the portable electronic device 1 outputted thereto.
  • the external speaker 10 works by being connected to an external power source or by a built-in battery.
  • the first connector 16 is coupled to a second connector (not shown) of the portable electronic device 1 and includes an audio input terminal and a power output terminal. Accordingly, when the portable electronic device 1 is mounted on the first connector 16, a sound signal of the portable electronic device 1 is input to the external speaker 10 through the audio input terminal, and the input sound signal is reproduced. It is reproduced by the circuit and output as sound through the speaker unit 14. At the same time, power of the external speaker 10 may be supplied to the portable electronic device 1 through the power output terminal to charge the battery of the portable electronic device 1.
  • the external speaker 10 needs to be used in a state where the portable electronic device 1 is mounted on the cradle 12, it is difficult to adjust the music selection or volume when the user is away from the external speaker 10, and listen to the sound.
  • the wireless speaker capable of wireless communication with the portable electronic device 1 may be used instead of the external speaker 10 described above.
  • the wireless speaker may be more expensive than the external speaker and may properly utilize the existing external speaker 10. It is not a sufficient solution in that it is not.
  • the present invention is to solve various problems including the above problems, to provide a wireless headphone and an acoustic amplification system using the same as a wireless speaker of a portable electronic device by mounting the wireless headphone on the holder.
  • the purpose is exemplary, and the scope of the present invention is not limited thereby.
  • Embodiments of the present invention provide a wireless headphone and an acoustic amplification system using the same.
  • a head band unit having a switch, a sound output unit connected to both ends of the head band unit for outputting sound, a wireless communication module unit for performing wireless communication with a portable electronic device and the wireless communication module unit And a sound signal processing unit for transmitting the sound signal received through the sound output unit, the sound output unit including a first sound output unit and a second sound output unit, and the first sound according to on / off of the switch.
  • a wireless headphone is provided, which selectively outputs sound from any one of an output unit and the second sound output unit.
  • the holder can be utilized as a wireless speaker of a portable electronic device by a simple operation of mounting the wireless headphones on the holder.
  • the portable electronic device can be operated while away from the cradle, and the multi-tasking of the portable electronic device is possible while listening to sound.
  • FIG. 1 is a perspective view schematically showing a state in which an external speaker equipped with a conventional portable electronic device is used.
  • FIG. 2 is a perspective view schematically showing a state of using a wireless headphone according to an embodiment of the present invention.
  • FIG. 3 is a front view schematically showing how the wireless headphones of FIG. 2 operate.
  • FIG. 4 is a perspective view schematically showing a state of using an acoustic amplification system using a wireless headphone according to an embodiment of the present invention.
  • FIG. 5 is a front view schematically showing how the wireless headphones of FIG. 4 operate.
  • FIG. 6 is a schematic perspective view of an acoustic amplifier of FIG. 4.
  • FIG. 7 is an exploded perspective view schematically illustrating an acoustic amplifier of FIG. 4.
  • FIG. 8 is a block diagram schematically showing the configuration of an acoustic amplification system using wireless headphones according to an embodiment of the present invention.
  • a head band unit having a switch, a sound output unit connected to both ends of the head band unit for outputting sound, a wireless communication module unit for performing wireless communication with a portable electronic device and the wireless communication module unit And a sound signal processing unit for transmitting the sound signal received through the sound output unit, the sound output unit including a first sound output unit and a second sound output unit, and the first sound according to on / off of the switch.
  • a wireless headphone is provided, which selectively outputs sound from any one of an output unit and the second sound output unit.
  • the switch may be located on the inner side of the head band portion.
  • the switch includes a magnetic switch having a first switch member and a second switch member that are in an on state when in contact with each other and in an off state when in mutual separation, wherein the switch is one of the first switch member and the second switch member. It can be either.
  • the sound may be output from the first sound output unit when the switch is in an off state, and may be output by the second sound output unit when the switch is in an on state.
  • the volume of the sound output from the first sound output unit may be less than the volume of the sound output from the second sound output unit.
  • the controller may further include a controller configured to detect whether the switch is on or off and to generate a control signal for outputting the sound to any one of the first sound output unit and the second sound output unit.
  • the apparatus may further include an output switching unit configured to switch a connection to the first sound output unit and a connection to the second sound output unit according to the control signal.
  • the head band unit may include a rechargeable battery.
  • any one of the first sound output unit and the second sound output unit connected to both ends of the head band unit in accordance with the switch on / off A wireless headphone for selectively outputting sound and a mounting portion to which the wireless headphone can be seated, and the switch is turned on when contacting the headband part to amplify the sound output from the second sound output part
  • an acoustic amplification system using a wireless headphone including an amplifying unit.
  • the switch may be located on the inner side of the head band portion.
  • the switch includes a magnetic switch having a first switch member and a second switch member which are turned on in contact with each other and turned off when separated from each other, wherein the first switch member is provided in the head band portion. 2 switch member may be provided in the sound amplifier.
  • the sound may be output from the first sound output unit when the switch is in an off state, and the sound may be output from the second sound output unit when the switch is in an on state.
  • the sound amplifying unit may include a ring to provide an amplification space of the sound output from the second sound output unit when the switch is in the on state.
  • the sound amplifier may collect sound output from the second sound output unit in the ringing direction.
  • the volume of the sound output from the first sound output unit may be less than the volume of the sound output from the second sound output unit.
  • the controller may further include a controller configured to detect whether the switch is on or off and to generate a control signal for outputting the sound to any one of the first sound output unit and the second sound output unit.
  • the apparatus may further include an output switching unit configured to switch a connection to the first sound output unit and a connection to the second sound output unit according to the control signal.
  • the head band unit may include a rechargeable battery.
  • the sound amplifier may include a power supply unit which contacts the battery and supplies power to the battery.
  • the power supply unit may include a charging pad.
  • FIG. 2 is a perspective view schematically showing the use of a wireless headphone according to an embodiment of the present invention
  • FIG. 3 is a front view schematically showing the operation of the wireless headphone of FIG. 2.
  • the wireless headphone 100 includes a head band unit 110, an audio output unit 120, a wireless communication module unit (not shown), and an acoustic signal processing unit (not shown). C).
  • the head band unit 110 includes a head band 111 having a band shape so as to be worn on a user's head, and the switch 112 is coupled to the head band 111.
  • the switch 112 may be located on the inner side of the head band 111, whereby the switch can operate stably when the head band 110 is seated on the upper surface of the acoustic amplifier (not shown) to be described later.
  • the switch may be provided in the head band part 110, and may be appropriately disposed on the head band 111 according to a design.
  • the switch 112 may be disposed to be adjacent to the center of the head band 111 so that the switch 112 can easily contact the upper surface of the sound amplifier.
  • the switch may comprise a magnetic switch having a first switch member and a second switch member.
  • the first switch member and the second switch member may be turned on when they are in contact with each other, and may be turned off when they are separated from each other.
  • the present invention is not limited thereto, and conversely, the first switch member and the second switch member may be turned off when they are in contact with each other, and may be turned on when they are separated from each other.
  • the switch 112 provided in the head band unit 110 may be any one of the first switch member and the second switch member.
  • the switch is not necessarily limited to the magnetic switch, and the switch may be a button type switch, or may be various types of touch switches that are switched on / off by sensing a magnetic field change, a capacitance change, a resistance change, and the like.
  • the switch corresponds to a magnetic switch
  • the head band part 110 is provided with a first switch member
  • the second switch member corresponding to the first switch member is provided with an acoustic amplifier which will be described later. It demonstrates concretely centering on a case.
  • the head band unit 110 may include a rechargeable battery 113.
  • the rechargeable battery 113 may be located on the inner surface of the head band 111, and disposed in the center of the head band 111 so as to easily contact the upper surface of the sound amplifier. Can be.
  • the rechargeable battery 113 may be positioned at the center of the head band 111, and the switches 112 may be positioned at both sides of the rechargeable battery 113.
  • the switch 112 and the rechargeable battery 113 is shown as being embedded in the head band 111, it is also possible to form at least a portion protrudes on the inner surface of the head band 111. Do.
  • the sound output unit 120 is connected to both ends of the head band unit 110.
  • the sound output unit 120 includes a first sound output unit 121 and a second sound output unit 122.
  • the first sound output unit 121 is a portion that outputs the sound that the user listens to while wearing the wireless headphones
  • the second sound output unit 122 outputs the sound that the user listens to using the sound amplifier.
  • the first sound output unit 121 may be embedded in the ear pad 123 formed of a flexible material to comfortably surround the user's ear and prevent sound from leaking to the outside
  • the second sound output unit 122 may be
  • the pad 123 may be disposed to surround one surface of the pad 123 to be embedded in a housing 124 that supports the ear pad 123.
  • the present invention is not limited thereto, and the first sound output unit 121 and the second sound output unit 122 may be integrally formed.
  • the wireless headphone 100 performs wireless communication with the portable electronic device 1.
  • the wireless headphone 100 includes a wireless communication module unit.
  • the portable electronic device 1 may be an electronic device in which music files are stored such as a mobile communication terminal and an MP3 player.
  • the wireless headphone 100 receives a sound signal through the wireless communication module unit, and the wireless signal receiving method wirelessly includes Bluetooth, zigbee, infrared communication, and radio frequency (RF). It may be one of communication, Wi-Fi, and wireless LAN.
  • the wireless signal receiving method wirelessly includes Bluetooth, zigbee, infrared communication, and radio frequency (RF). It may be one of communication, Wi-Fi, and wireless LAN.
  • the received sound signal is transmitted to the sound signal processor, and the sound signal processor transmits the sound signal to the sound output unit 120.
  • the switch provided in the head band unit 110 is in an off state, and the sound signal processor transmits the sound signal to the first sound output unit 121 to output sound.
  • the sound signal processor may output not only a music file playing sound but also a sound signal related to a key input sound or an effect sound according to execution of various functions.
  • the sound signal processor may include a codec, and transmits the sound signal decoded and output by the codec to the first sound output unit 121.
  • the user listens to the sound output through the first sound output unit 121 while wearing the wireless headphone 100.
  • the sound signal processor transmits the sound signal to the second sound output unit 122 to output the sound.
  • the user may listen to the sound output through the second sound output unit 122 using the sound amplifier. Therefore, the volume of the sound output from the second sound output unit 122 may be greater than the volume of the sound output from the first sound output unit 121.
  • FIG. 4 is a perspective view schematically showing a state of using an acoustic amplification system using a wireless headphone according to an embodiment of the present invention
  • Figure 5 is a front view schematically showing the operation of the wireless headphone of FIG.
  • the acoustic amplification system 1000 using the wireless headphone includes a wireless headphone 100 and an acoustic amplifier 200.
  • the user mounts the wireless headphone 100 on the sound amplifying unit 200 to listen to the sound output from the wireless headphone 100 at high power and high quality through the sound amplifying unit 200.
  • the acoustic amplification unit 200 may be a simple holder for mounting the wireless headphone 100, or may be a speaker holder with a speaker function for converting an amplified electric signal into sound waves. This also applies to the embodiments and modifications described below.
  • the wireless headphone 100 may continuously perform wireless communication with the portable electronic device 1 and output sound.
  • the sound output from the wireless headphone 100 may be transferred to the sound amplifying unit 200 so that the sound may be changed into high output and high quality sound.
  • the wireless headphone 100 is the same as or similar to the above-described embodiment with reference to FIGS. 2 to 3, only the characteristic parts distinguished from the above-described embodiments will be described below, and the description thereof will be omitted.
  • the same elements will be described using the same reference numerals as the above-described embodiment.
  • the wireless headphone 100 is mounted on the sound amplifier 200 so that the switch provided in the head band unit 110 is turned on.
  • the switch includes a magnetic switch
  • the switch provided in the head band unit 110 may be a first switch member 112, and the sound amplifier 200 corresponds to the first switch member 112.
  • the second switch member (not shown) may be provided.
  • the first switch member 112 provided in the head band unit 110 contacts the second switch member provided in the acoustic amplifying unit 200 so that the switch is turned on.
  • the switch As the switch is turned on, sound is output from the second sound output unit 122 of the wireless headphone 100 as shown in FIG. 5.
  • the sound output as described above is transferred to the sound amplifier 200 and amplified by the sound amplifier 200.
  • the user can easily listen to the amplified high-output sound without a separate operation of connecting the portable electronic device 1 to the acoustic amplification unit 200 by simply attaching the wireless headphone 100 to the acoustic amplification unit 200. can do.
  • FIG. 6 is a perspective view schematically showing an acoustic amplifier of FIG. 4
  • FIG. 7 is an exploded perspective view schematically showing an acoustic amplifier of FIG. 4.
  • the acoustic amplifier 200 includes a mounting unit 221 on which the wireless headphone 100 may be seated.
  • the mounting unit 221 may include a second switch member 222 and a power supply unit 223.
  • the second switch member 222 constitutes a magnetic switch together with the first switch member 112 of the wireless headphone 100.
  • the second switch member 222 contacts the first switch member 112 to contact the magnet.
  • the switch is turned on, and the sound is output from the second sound output unit 122 of the wireless headphone 100. As described above, the sound output from the second sound output unit 122 is listened through the sound amplifier 200, and the volume of the sound output from the first sound output unit 121 may be greater.
  • the power supply unit 223 corresponds to the rechargeable battery 113 of the wireless headphone 100.
  • the power supply unit 223 may supply power to the rechargeable battery 113 by contacting the rechargeable battery 113.
  • the wireless headphone 100 may be simply charged by a simple operation of mounting the wireless headphone 100 on the sound amplifier 200.
  • the power supply unit 223 may be manufactured in various forms, the power supply unit 223 is a charging pad so that it can be charged only by mounting the wireless headphone 100 to the mounting unit 221 of the sound amplifying unit 200. It can be manufactured in the form.
  • Openings 211 may be formed at both ends of the cradle 221 to insert at least a portion of the ear pad 123 of the wireless headphone 100.
  • the sound amplification unit 200 is the grill 230 is coupled to the front surface located in the output direction of the sound, the inside of the grill 230, the ring 212 is formed. Therefore, the sound output from the second sound output unit 122 of the wireless headphone 100 is introduced into the opening 211 of the sound amplifying unit 200 through the ear pad 123 and then the sound amplifying unit 200 While passing through the ring 212 can be amplified by the resonance phenomenon. However, resonance does not necessarily occur within the ring 212, and it is sufficient to amplify the sound to the extent that the user can listen to the sound.
  • the ring 212 is shown as having two holes, but is not limited to this in consideration of the position of the opening 211, the characteristics of the sound output from the second sound output unit 122, etc. It can be designed to have holes of any number and size.
  • FIG. 8 is a block diagram schematically showing the configuration of an acoustic amplification system using wireless headphones according to an embodiment of the present invention.
  • an acoustic amplification system 1000 using wireless headphones includes a wireless headphones 100 and an acoustic amplifier 200.
  • the wireless headphone 100 receives an acoustic signal through a wireless communication module 131 which performs wireless communication with a portable electronic device (not shown), and transmits the acoustic signal to the acoustic signal processor 132.
  • the sound signal processor 132 transmits the sound signal to the sound output units 121 and 122.
  • control unit 133 detects the contact between the first switch member 112 provided in the wireless headphone 100 and the second switch member 222 provided in the sound amplifying unit 200. ) And the second switch member 222 detects whether the switch is on or off. Accordingly, the controller 133 generates a control signal for commanding the output of sound to either the first sound output unit 121 or the second sound output unit 122.
  • the control signal may be input to the output switching unit 134, and the output switching unit 134 may be connected to the first sound output unit 121 or the second sound output unit 122 according to the control signal. That is, the output switching unit 134 switches the output direction of the sound signal received from the sound signal processor 132 between the first sound output unit 121 and the second sound output unit 122 according to the control signal. Perform the switching operation.
  • the switch maintains an off state, and accordingly, the controller 133
  • the control signal is transmitted to the output switching unit 134 so that the output switching unit 134 is connected to the first sound output unit 121.
  • the first sound output unit 121 receiving the sound signal from the sound signal processor 132 outputs sound.
  • the wireless headphone 100 is mounted on the acoustic amplifier 200, and the switch is turned on when the first switch member 112 and the second switch member 222 contact each other.
  • the control unit 133 transmits a control signal to the output switching unit 134 so that the output switching unit 134 is connected to the second sound output unit 122.
  • the second sound output unit 122 that receives the sound signal from the sound signal processor 132 outputs sound. Thereafter, the sound is amplified by a resonance phenomenon through the ring of the sound amplifier 200 so that the user can hear the sound of high output and high quality through the sound amplifier 200.
  • the wireless headphone 100 includes a power circuit 114 connected to the rechargeable battery 113, and the wireless communication module unit 131 and the acoustic signal from the rechargeable battery 113 through the power circuit 114. Power is supplied to components such as the processor 132 and the controller 133. Thereafter, the rechargeable battery 113 is discharged in accordance with the operation of the components. At this time, the rechargeable battery 113 of the wireless headphone 100 is in contact with the power supply unit 223 of the acoustic amplification unit 200. 113 may be charged again by receiving external power from the power supply unit 223.
  • the holder may be used as a wireless speaker of a portable electronic device by a simple operation of mounting the wireless headphones on the holder.
  • the portable electronic device can be operated while away from the cradle, and the multi-tasking of the portable electronic device is possible while listening to sound. You can also charge your wireless headphones easily
  • a wireless headphone having both a wireless headphone function and a wireless speaker function and an acoustic amplification system using the same are provided.
  • the wireless headphone and the acoustic amplification system using the same are provided in a mobile communication terminal, an MP3 player, and a PDA. It can be used as a headphone and a speaker for communicating with a portable electronic device such as a PMP.

Abstract

La présente invention concerne un système d'amplification sonore utilisant un casque d'écoute sans fil, le système comprenant : un casque d'écoute sans fil qui réalise une communication sans fil avec un dispositif électronique mobile de façon à recevoir un signal sonore, et qui délivre sélectivement un son selon un commutateur marche/arrêt à partir d'une partie quelconque parmi une première partie de sortie sonore et une seconde partie de sortie sonore qui sont reliées aux deux extrémités d'une partie serre-tête ; et une partie d'amplification de son qui a une partie de support sur laquelle le casque d'écoute sans fil peut être placé, et qui amplifie la sortie de son de la seconde partie de sortie de son lorsque la partie d'amplification de son vient en contact avec la partie de serre-tête, amenant ainsi le commutateur à être allumé.
PCT/KR2017/008311 2016-08-10 2017-08-01 Casque d'écoute sans fil et système d'amplification sonore l'utilisant WO2018030700A1 (fr)

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KR1020160102029A KR101808253B1 (ko) 2016-08-10 2016-08-10 무선 헤드폰 및 이를 이용한 음향 증폭 시스템
KR10-2016-0102029 2016-08-10

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KR102214661B1 (ko) * 2019-09-02 2021-02-10 주식회사 이엠텍 무선 이어버드와 충전 크래들을 이용한 음향 시스템

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KR20080099947A (ko) * 2007-05-11 2008-11-14 (주)에스더블유피신우전자 헤드폰
KR20110015096A (ko) * 2009-08-07 2011-02-15 대덕대학산학협력단 전화 수신음의 인식이 용이한 소프트폰용 단말장치
KR20160092643A (ko) * 2015-01-28 2016-08-05 엘지전자 주식회사 휴대용 음향 출력 장치의 무선 충전 시스템

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