WO2015099269A1 - Audio input/output device for active noise control - Google Patents

Audio input/output device for active noise control Download PDF

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Publication number
WO2015099269A1
WO2015099269A1 PCT/KR2014/009246 KR2014009246W WO2015099269A1 WO 2015099269 A1 WO2015099269 A1 WO 2015099269A1 KR 2014009246 W KR2014009246 W KR 2014009246W WO 2015099269 A1 WO2015099269 A1 WO 2015099269A1
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Prior art keywords
terminal
active noise
output device
noise control
audio input
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PCT/KR2014/009246
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French (fr)
Korean (ko)
Inventor
이종배
박구택
김태영
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크레신 주식회사
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Publication of WO2015099269A1 publication Critical patent/WO2015099269A1/en

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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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • 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
    • H04R1/1083—Reduction of ambient noise
    • 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
    • H04R2460/01—Hearing devices using active noise cancellation

Definitions

  • the present invention relates to an audio input and output device for providing an active noise control function.
  • terminal users such as smart phones and mobile phones
  • audio input / output devices such as earsets and headsets
  • the content is not delivered smoothly and the volume is increased. If the high volume of the sound is sustained for a long time, the user may experience hearing loss. could damage to people around.
  • the active noise canceling (Active Noise Canceling) unit in the audio input and output device receives the ambient noise, the frequency of the reverse phase By generating and flowing through a speaker, the noise of the surroundings is canceled out and a technology that enables clear listening even at a low volume has been proposed.
  • a power supply means such as a battery is additionally required to use an active noise control function, and since a separate battery is configured inside, the size of the audio input / output device is increased, making it inconvenient to carry and a battery inside the audio device. There is a problem in that the overall weight is increased by loading is inconvenient to wear.
  • the present invention has been made to solve the above problems, and an object thereof is to provide an audio input / output device that does not require an additional power supply means for supplying power to an active noise control unit.
  • an active noise control audio input / output device is inserted into an ear jack terminal of a terminal, and a plurality of sound signal output terminals, a ground terminal, for relaying a signal generated by the audio input / output device and the terminal.
  • a connection unit provided with an audio signal input terminal;
  • an active noise control unit for recognizing the noise generated around the audio device and generating an offset sound of the noise.
  • the first filter unit is connected to the sound signal output terminal is supplied with the power, to prevent the power supplied from the terminal from flowing back into the terminal;
  • a second filter unit connected to the first filter unit to block the inflow of power and to pass only an audio signal. It may further include.
  • the active noise control unit may be branched between the first filter unit and the second filter unit.
  • the active noise control unit may be branched from one point of the voice signal input terminal.
  • the switch unit for generating a control signal and transmitting to the terminal to turn on and off the active noise control unit may further include.
  • the present invention has the following effects.
  • the weight generated from the battery loaded inside the audio input and output device can be reduced, thereby minimizing discomfort when worn.
  • the size of the audio input / output device can be reduced.
  • FIG. 1 is a block diagram of an audio input / output device according to a first embodiment of the present invention.
  • FIG. 2 is a block diagram of an audio input / output device according to a second embodiment of the present invention.
  • FIG. 1 is a block diagram of an audio input / output device according to a first embodiment of the present invention.
  • the audio input / output device 100 is inserted into an ear jack terminal of the terminal 200 so as to relay signals generated by the audio input / output device 100 and the terminal 200.
  • the connection unit 110 is composed of four poles, and the four pole arrangement sequence consisting of a plurality of sound signal output terminals 111 and 112, a voice signal input terminal 113, and a ground terminal 114 is an ear jack of the terminal 200. It may be configured differently according to the arrangement of the terminals.
  • the first sound signal output terminal 111 of the connection unit 110 receives the power generated from the power supply device 210 of the terminal 200 and the sound signal generated from the right audio output terminal 220 at the same time active noise Power is transmitted to the controller 120, and the second sound signal output terminal 112 receives a sound signal from the left audio output terminal 230 of the terminal 200.
  • the voice signal input terminal 113 of the connection unit 110 is connected to the microphone input terminal 240 of the terminal 200 to transmit the voice signal input from the microphone 160 of the audio input / output device 100 to the terminal 200. send.
  • the ground terminal 114 of the connection unit 110 is connected to the ground terminal 250 of the terminal 200 to be grounded.
  • the active noise control unit 120 receives the noise from the outside of the audio input and output device 100, analyzes the frequency of the noise, and generates an offset sound having the frequency and the reverse phase through the output terminal of the active noise control unit 120 Transmit to speaker 140.
  • the audio input / output device 100 is connected to the first sound signal output terminal 111 to prevent the power supplied from the terminal 200 from flowing back into the terminal 200.
  • the second filter unit 131 may further include a second filter unit 132 connected to the first filter unit 131 and the first filter unit 131 to block inflow of power and to pass only an audio signal.
  • the first filter unit 131 supplies power to the first sound signal output terminal 111 of the audio input / output device 100 through the right audio output terminal 220 of the terminal 200, the power is supplied to the terminal 200. By blocking the flow into the, it is possible to prevent the malfunction and failure of the terminal 200.
  • the second filter unit 132 allows the sound signal to pass, but cuts off power, thereby helping to output a stable sound signal of the first speaker unit 141 connected to the second filter unit 132.
  • a capacitor for preventing reverse current is used as the first filter unit 131, and a capacitor for blocking a DC signal and passing an AC signal is used for the second filter unit 132.
  • the audio input / output device is connected to the second filter unit 132 to output a sound signal, and the first speaker 141 and the first of the plurality of sound signal output terminals 111 and 112. It may further include a second speaker 142 connected to the sound signal output terminal 112 that is not connected to the filter unit 131 and outputs a sound signal.
  • the first speaker 141 is a sound signal transmitted from the right audio output terminal 220 of the terminal 200 to the first sound signal output terminal 111 and the sound signal passing through the second filter unit 132 of the power source. Will print.
  • the speaker 140 may simultaneously output an acoustic signal supplied from the terminal 200 and an offset sound generated by the active noise controller 120.
  • the active noise control unit 120 of the audio input / output device 100 may be branched between the first filter unit 131 and the second filter unit 132.
  • the power generated from the power supply device 210 of the terminal 200 is supplied at one point of the right audio output terminal 220, and thus the first sound of the connection unit 110 connected to the ear jack terminal of the terminal 200 is provided.
  • the acoustic signal and the power flow through the signal output terminal 111 at the same time.
  • the power that does not pass through the second filter unit 132 flows to the first relay switch 170.
  • the first relay switch 170 that detects the electrical signal is connected, the power is supplied to the active noise control unit 120, the second relay switch 180 that senses the electrical signal flowing through the first relay switch 170 Is blocked so that power does not flow to the voice signal input terminal 113.
  • the active noise control unit 120 is supplied with power to generate the offset sound through the speaker 140 to attenuate the ambient noise.
  • the active noise control unit 120 of the audio input and output device 100 may be branched at one point of the voice signal input terminal 113.
  • the power generated from the power supply device 210 of the terminal 200 is supplied from one point of the microphone input terminal 240, so that the audio signal input terminal 113 of the connection unit 110 connected to the ear jack terminal of the terminal 200 is supplied.
  • the second relay switch 180 may be connected and the first relay switch 170 may be cut off and supplied to the active noise controller 120.
  • the audio input / output device 100 further includes a switch unit 150 generating a control signal to turn on and off the active noise control unit 120 and transmitting the generated control signal to the terminal 200. can do.
  • the switch unit 150 transmits an electrical signal generated in the process of the user operating the switch to the terminal 200, the terminal 200 to supply or cut off the power of the power supply device 210, the active noise control unit 120 may be turned on or off.
  • the audio signal input terminal 113 of the audio input / output device 100 is connected to the microphone input terminal 240 of the terminal 200 to receive a voice signal and transmit it to the terminal 200 and the sound signal of the microphone 160.
  • Remote control (not shown) for generating an electrical signal for adjusting the volume, playback and stop of the sound source, start and end of the call to the terminal 200 may be further included.
  • FIG. 2 is a block diagram of an audio input / output device according to a second embodiment of the present invention.
  • Power generated from the power supply 410 of the terminal 400 is supplied from one point of the left audio output terminal 430, the second sound signal output terminal of the connection portion 310 connected to the ear jack terminal of the terminal 400 At 312, the acoustic signal and the power flow simultaneously.
  • the first relay switch 370 that detects an electrical signal is connected to supply power to the active noise control unit 320, and the second relay switch 380 that senses an electrical signal flowing through the first relay switch is blocked. Power does not flow to the voice signal input terminal 113.
  • the present invention is driven by the active noise control unit using the power supplied through the power supply of the terminal, the user does not need a separate battery and charging means is easy to carry, reducing the weight generated from the battery, etc. It minimizes the inconvenience when wearing and does not need a space for storing a separate battery therein provides an audio input and output device that can reduce the overall size.
  • connection part 110, 310 connection part

Abstract

The present invention relates to an audio input/output device and provides an audio input/output device comprising: a connection section which comprises a plurality of sound signal output ends, a ground end, and a voice signal input end, and which is inserted into the ear-jack end of a terminal so as to relay a signal generated in the audio input/output device and the terminal; and an active noise control section which recognizes the noise generated around the audio device and generates a canceling sound against the noise, wherein the active noise control section is supplied with power required for carrying out an active noise control function from the terminal via any one of the plurality of sound signal output ends or the voice signal input end. The present invention does not require a separate battery or a charging means for using the active noise control function, and is thus easy to carry. In addition, the present invention can minimize discomfort while being worn by reducing the weight of the battery, etc. Also, the present invention can reduce the size of the audio input/output device because no space for storing a separate battery therein is necessary.

Description

능동소음제어 오디오입출력장치 Active Noise Control Audio I / O Device
본 발명은 능동소음제어 기능을 제공하는 오디오입출력장치에 관한 것이다.The present invention relates to an audio input and output device for providing an active noise control function.
최근에는 스마트폰, 휴대폰 등의 단말기 사용자들이 단말기를 통한 컨텐츠 감상 또는 음성통화 시에 내용을 명확하게 전달받기 위해 이어셋, 헤드셋 등의 오디오입출력장치를 사용한다. 하지만, 주위의 소음이 과하게 발생할 경우 내용 전달이 원활히 이루어지지 않아 볼륨을 높여서 사용하게 되는데, 이러한 높은 볼륨의 청취가 장시간 지속될 경우 사용자에게 난청이 유발될 수 있으며, 높은 볼륨을 사용함으로써 발생되는 소음은 주위 사람에게도 피해를 줄 수 있었다.Recently, terminal users, such as smart phones and mobile phones, use audio input / output devices such as earsets and headsets in order to clearly receive contents when viewing contents or making voice calls through the terminals. However, if the ambient noise is excessive, the content is not delivered smoothly and the volume is increased. If the high volume of the sound is sustained for a long time, the user may experience hearing loss. Could damage to people around.
이러한 문제점을 해결하기 위해, 대한민국 공개특허공보 2012-0042218(이하, 종래기술이라 칭함)에서 오디오입출력장치 내부에 능동소음제어(Active noise Canceling) 유닛이 주위의 소음을 입력받아, 역위상의 주파수를 생성하여 스피커를 통해 흘려보냄으로써, 주위의 소음이 상쇄되어 낮은 볼륨을 유지해도 명확한 청취가 가능해지는 기술을 제시한바 있다.In order to solve this problem, in the Republic of Korea Patent Publication No. 2012-0042218 (hereinafter referred to as the prior art), the active noise canceling (Active Noise Canceling) unit in the audio input and output device receives the ambient noise, the frequency of the reverse phase By generating and flowing through a speaker, the noise of the surroundings is canceled out and a technology that enables clear listening even at a low volume has been proposed.
하지만, 종래기술은 능동소음제어 기능을 사용하기 위해 배터리 등의 전원공급수단이 추가적으로 필요하며, 별도의 배터리가 내부에 구성됨으로써 오디오입출력장치의 크기가 증가하여 휴대가 불편하고, 오디오장치 내부에 배터리가 적재됨으로써 전체 무게가 증가하여 착용이 불편한 문제점이 있었다.However, in the prior art, a power supply means such as a battery is additionally required to use an active noise control function, and since a separate battery is configured inside, the size of the audio input / output device is increased, making it inconvenient to carry and a battery inside the audio device. There is a problem in that the overall weight is increased by loading is inconvenient to wear.
본 발명은 상술한 문제점을 해결하기 위한 것으로, 능동소음제어 유닛의 전원을 공급하기 위한 추가적인 전원공급수단이 필요하지 않은 오디오입출력장치를 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide an audio input / output device that does not require an additional power supply means for supplying power to an active noise control unit.
본 발명이 해결하려는 과제는 전술한 과제로 제한되지 아니하며, 언급되지 아니한 또 다른 기술적 과제들은 후술할 내용으로부터 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.The problem to be solved by the present invention is not limited to the above-described problem, other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.
이러한 목적을 달성하기 위하여 본 발명의 일 태양으로 능동소음제어 오디오입출력장치는 단말기의 이어잭 단자에 삽입되어, 오디오입출력장치와 상기 단말기에서 발생하는 신호를 중계하도록 복수의 음향신호 출력단, 접지단, 음성신호 입력단이 구비되는 접속부; 및 상기 오디오장치의 주위에서 발생하는 소음을 인식하고 상기 소음의 상쇄음을 생성하는 능동소음제어부; 를 포함하고, 상기 능동소음제어부는 구동에 필요한 전원을 상기 단말기로부터 공급받되, 상기 복수의 음향신호 출력단 중 어느 하나 또는 상기 음성신호 입력단을 통해 공급받을 수 있다.In one aspect of the present invention, an active noise control audio input / output device is inserted into an ear jack terminal of a terminal, and a plurality of sound signal output terminals, a ground terminal, for relaying a signal generated by the audio input / output device and the terminal. A connection unit provided with an audio signal input terminal; And an active noise control unit for recognizing the noise generated around the audio device and generating an offset sound of the noise. Includes, wherein the active noise control unit is supplied with the power required for driving from the terminal, may be supplied through any one of the plurality of sound signal output terminal or the voice signal input terminal.
또한, 상기 전원이 공급되는 음향신호 출력단에 연결되어, 상기 단말기로부터 공급받은 상기 전원이 상기 단말기에 역으로 유입되는 것을 방지하는 제1필터부; 및 상기 제1필터부와 연결되어, 상기 전원의 유입을 차단하고 음향신호만을 통과시키는 제2필터부; 를 더 포함할 수 있다.In addition, the first filter unit is connected to the sound signal output terminal is supplied with the power, to prevent the power supplied from the terminal from flowing back into the terminal; And a second filter unit connected to the first filter unit to block the inflow of power and to pass only an audio signal. It may further include.
그리고, 상기 제2필터부와 연결되어 음향신호를 출력하는 제1스피커; 및 상기 복수의 음향신호 출력단 중 상기 제1필터부와 연결되지 않는 음향신호 출력단에 연결되어 음향신호를 출력하는 제2스피커; 를 더 포함할 수 있다.A first speaker connected to the second filter unit to output an audio signal; And a second speaker connected to an audio signal output terminal which is not connected to the first filter unit among the plurality of sound signal output terminals, and outputs a sound signal. It may further include.
한편, 상기 능동소음제어부는 상기 제1필터부와 제2필터부 사이에서 분기되어 연결될 수 있다.The active noise control unit may be branched between the first filter unit and the second filter unit.
또한, 상기 능동소음제어부는 상기 음성신호 입력단의 일지점에서 분기되어 연결될 수 있다.The active noise control unit may be branched from one point of the voice signal input terminal.
아울러, 상기 능동소음제어부를 온오프시키도록, 제어신호를 생성하여 상기 단말기에 전송하는 스위치부; 를 더 포함할 수 있다.In addition, the switch unit for generating a control signal and transmitting to the terminal to turn on and off the active noise control unit; It may further include.
이상에서 설명한 바와 같이 본 발명에 의하면, 다음과 같은 효과가 있다.As described above, the present invention has the following effects.
첫째, 능동소음제어 기능을 사용함에 있어서, 오디오입출력장치 내부에 능동소음제어 유닛의 전원을 공급하기 위한 별도의 배터리 및 충전수단이 필요하지 않아 휴대의 편의를 제공한다.First, in using the active noise control function, a separate battery and charging means for supplying power to the active noise control unit inside the audio input / output device are not required, thereby providing convenience of portability.
둘째, 오디오입출력장치의 내부에 적재되는 배터리에서 발생되는 무게를 감소시킬 수 있어, 착용 시 불편함을 최소화할 수 있다.Second, the weight generated from the battery loaded inside the audio input and output device can be reduced, thereby minimizing discomfort when worn.
셋째, 내부에 별도의 배터리를 수납하기 위한 공간이 필요하지 않아, 오디오입출력장치의 크기를 줄일 수 있다.Third, since a space for accommodating a separate battery is not required, the size of the audio input / output device can be reduced.
본 발명의 효과들은 이상에서 언급한 효과들로 제한되지 않으며, 언급되지 않은 또 다른 효과들은 청구범위의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.
도1은 본 발명의 제1 실시예에 따른 오디오입출력장치의 블록도이다.1 is a block diagram of an audio input / output device according to a first embodiment of the present invention.
도2는 본 발명의 제2 실시예에 따른 오디오입출력장치의 블록도이다.2 is a block diagram of an audio input / output device according to a second embodiment of the present invention.
본 발명의 바람직한 실시예에 대하여 첨부된 도면을 참조하여 더 구체적으로 설명하되, 이미 주지되어진 기술적 부분에 대해서는 설명의 간결함을 위해 생략하거나 압축하기로 한다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings, and the well-known technical parts will be omitted or compressed for brevity of description.
도1은 본 발명의 제1 실시예에 따른 오디오입출력장치의 블록도이다.1 is a block diagram of an audio input / output device according to a first embodiment of the present invention.
본 발명의 제1 실시예에 따른 오디오입출력장치(100)는 단말기(200)의 이어잭 단자에 삽입되어 오디오입출력장치(100)와 단말기(200)에서 발생하는 신호를 중계하도록 복수의 음향신호 출력단(111, 112), 음성신호 입력단(113), 접지단(114)이 구비되는 접속부(110) 및 오디오입출력장치(100)의 주위에서 발생하는 소음을 인식하고 소음의 상쇄음을 생성하는 능동소음제어부(120)를 포함하고, 능동소음제어부(120)는 구동에 필요한 전원을 단말기(200)로부터 공급받되, 복수의 음향신호 출력단(111, 112) 중 어느 하나 또는 음성신호 입력단(113)을 통해 공급받을 수 있다.The audio input / output device 100 according to the first embodiment of the present invention is inserted into an ear jack terminal of the terminal 200 so as to relay signals generated by the audio input / output device 100 and the terminal 200. Active noise for recognizing noise generated in the vicinity of the connection unit 110 and the audio input / output device 100 provided with the voice signal input terminal 113, the ground terminal 114, and the noise canceling unit 111 and 112. It includes a control unit 120, the active noise control unit 120 receives the power required for driving from the terminal 200, through any one of the plurality of sound signal output terminal (111, 112) or the voice signal input terminal 113 Can be supplied.
접속부(110)는 4극으로 구성되며, 복수의 음향신호 출력단(111, 112), 음성신호 입력단(113), 접지단(114)으로 구성되는 4극의 배열순서는 단말기(200)의 이어잭 단자의 배열에 따라 다르게 구성될 수 있다.The connection unit 110 is composed of four poles, and the four pole arrangement sequence consisting of a plurality of sound signal output terminals 111 and 112, a voice signal input terminal 113, and a ground terminal 114 is an ear jack of the terminal 200. It may be configured differently according to the arrangement of the terminals.
여기서, 접속부(110)의 제1음향신호 출력단(111)은 단말기(200)의 전원공급장치(210)에서 발생되는 전원과 우 오디오출력단자(220)로부터 발생되는 음향신호를 동시에 공급받아 능동소음제어부(120)에 전원을 전송하고, 제2음향신호 출력단(112)은 단말기(200)의 좌 오디오출력단자(230)로부터 음향신호를 공급받는다.In this case, the first sound signal output terminal 111 of the connection unit 110 receives the power generated from the power supply device 210 of the terminal 200 and the sound signal generated from the right audio output terminal 220 at the same time active noise Power is transmitted to the controller 120, and the second sound signal output terminal 112 receives a sound signal from the left audio output terminal 230 of the terminal 200.
그리고, 접속부(110)의 음성신호 입력단(113)은 단말기(200)의 마이크입력단자(240)와 연결되어 오디오입출력장치(100)의 마이크(160)에서 입력되는 음성신호를 단말기(200)로 전송한다.In addition, the voice signal input terminal 113 of the connection unit 110 is connected to the microphone input terminal 240 of the terminal 200 to transmit the voice signal input from the microphone 160 of the audio input / output device 100 to the terminal 200. send.
이어서, 접속부(110)의 접지단(114)은 단말기(200)의 접지단자(250)와 연결됨으로써 접지가 이루어진다.Subsequently, the ground terminal 114 of the connection unit 110 is connected to the ground terminal 250 of the terminal 200 to be grounded.
한편, 능동소음제어부(120)는 오디오입출력장치(100) 외부의 소음을 입력받아 소음의 주파수를 분석하고, 그 주파수와 역위상을 갖는 상쇄음을 생성하여 능동소음제어부(120)의 출력단을 통해 스피커(140)로 전송한다.On the other hand, the active noise control unit 120 receives the noise from the outside of the audio input and output device 100, analyzes the frequency of the noise, and generates an offset sound having the frequency and the reverse phase through the output terminal of the active noise control unit 120 Transmit to speaker 140.
그리고, 본 발명의 제1 실시예에 따른 오디오입출력장치(100)는 제1음향신호 출력단(111)에 연결되어, 단말기(200)로부터 공급받은 전원이 단말기(200)에 역으로 유입되는 것을 방지하는 제1필터부(131) 및 제1필터부(131)와 연결되어, 전원의 유입을 차단하고 음향신호만을 통과시키는 제2필터부(132)를 더 포함할 수 있다.In addition, the audio input / output device 100 according to the first embodiment of the present invention is connected to the first sound signal output terminal 111 to prevent the power supplied from the terminal 200 from flowing back into the terminal 200. The second filter unit 131 may further include a second filter unit 132 connected to the first filter unit 131 and the first filter unit 131 to block inflow of power and to pass only an audio signal.
제1필터부(131)는 단말기(200)의 우 오디오출력단자(220)를 통하여 오디오입출력장치(100)의 제1음향신호 출력단(111)으로 전원을 공급할 때, 전원이 단말기로(200)로 유입되는 것을 차단하여, 단말기(200)의 오작동 및 고장을 방지할 수 있다.When the first filter unit 131 supplies power to the first sound signal output terminal 111 of the audio input / output device 100 through the right audio output terminal 220 of the terminal 200, the power is supplied to the terminal 200. By blocking the flow into the, it is possible to prevent the malfunction and failure of the terminal 200.
그리고, 제2필터부(132)는 음향신호는 통과시키되 전원을 차단시킴으로써, 제2필터부(132)와 연결된 제1스피커부(141)의 안정적인 음향신호 출력을 돕는다.In addition, the second filter unit 132 allows the sound signal to pass, but cuts off power, thereby helping to output a stable sound signal of the first speaker unit 141 connected to the second filter unit 132.
여기서, 제1필터부(131)는 역전류를 방지하는 커패시터가 사용되며, 제2필터부(132)는 직류신호를 차단하고 교류신호를 통과시키는 커패시터가 사용된다.Here, a capacitor for preventing reverse current is used as the first filter unit 131, and a capacitor for blocking a DC signal and passing an AC signal is used for the second filter unit 132.
이어서, 본 발명의 제1 실시예에 따른 오디오입출력장치는 제2필터부(132)와 연결되어 음향신호를 출력하는 제1스피커(141) 및 복수의 음향신호 출력단(111, 112) 중 제1필터부(131)와 연결되지 않는 음향신호 출력단(112)에 연결되어 음향신호를 출력하는 제2스피커(142)를 더 포함할 수 있다.Subsequently, the audio input / output device according to the first embodiment of the present invention is connected to the second filter unit 132 to output a sound signal, and the first speaker 141 and the first of the plurality of sound signal output terminals 111 and 112. It may further include a second speaker 142 connected to the sound signal output terminal 112 that is not connected to the filter unit 131 and outputs a sound signal.
제1스피커(141)는, 단말기(200)의 우 오디오출력단자(220)로부터 제1음향신호 출력단(111)으로 전송된 음향신호와 전원 중 제2필터부(132)를 통과한 음향신호를 출력하게 된다.The first speaker 141 is a sound signal transmitted from the right audio output terminal 220 of the terminal 200 to the first sound signal output terminal 111 and the sound signal passing through the second filter unit 132 of the power source. Will print.
또한, 스피커(140)는 단말기(200)로부터 공급되는 음향신호와, 능동소음제어부(120)에서 생성된 상쇄음을 동시에 출력할 수 있다.In addition, the speaker 140 may simultaneously output an acoustic signal supplied from the terminal 200 and an offset sound generated by the active noise controller 120.
한편, 본 발명의 제1 실시예에 따른 오디오입출력장치(100)의 능동소음제어부(120)는 제1필터부(131)와 제2필터부(132) 사이에서 분기되어 연결될 수 있다.Meanwhile, the active noise control unit 120 of the audio input / output device 100 according to the first embodiment of the present invention may be branched between the first filter unit 131 and the second filter unit 132.
즉, 단말기(200)의 전원공급장치(210)에서 발생된 전원이 우 오디오출력단자(220)의 일지점에서 공급되어, 단말기(200)의 이어잭 단자에 연결된 접속부(110)의 제1음향신호 출력단(111)으로 음향신호와 전원이 동시에 흐르게 된다. That is, the power generated from the power supply device 210 of the terminal 200 is supplied at one point of the right audio output terminal 220, and thus the first sound of the connection unit 110 connected to the ear jack terminal of the terminal 200 is provided. The acoustic signal and the power flow through the signal output terminal 111 at the same time.
이때, 제1필터부(131)를 거쳐 제2필터부(132)에서 음향신호만 통과하여 제1스피커(141)로 전송된다.At this time, only the sound signal is transmitted from the second filter unit 132 through the first filter unit 131 and transmitted to the first speaker 141.
한편, 제2필터부(132)를 통과하지 못한 전원은 제1릴레이 스위치(170)로 흐르게 된다. On the other hand, the power that does not pass through the second filter unit 132 flows to the first relay switch 170.
이때, 전기신호를 감지한 제1릴레이 스위치(170)가 연결되어 전원이 능동소음제어부(120)로 공급되고, 제1릴레이 스위치(170)에 흐르는 전기신호를 감지한 제2릴레이 스위치(180)는 차단되어 음성신호 입력단(113)으로 전원이 흐르지 않게 된다.At this time, the first relay switch 170 that detects the electrical signal is connected, the power is supplied to the active noise control unit 120, the second relay switch 180 that senses the electrical signal flowing through the first relay switch 170 Is blocked so that power does not flow to the voice signal input terminal 113.
여기서, 전원을 공급받은 능동소음제어부(120)는 상쇄음을 생성하여 스피커(140)를 통해 출력함으로써 주위 소음을 감쇠시킬 수 있다.Here, the active noise control unit 120 is supplied with power to generate the offset sound through the speaker 140 to attenuate the ambient noise.
또한, 본 발명의 제1 실시예에 따른 오디오입출력장치(100)의 능동소음제어부(120)는 음성신호 입력단(113)의 일지점에서 분기되어 연결될 수 있다.In addition, the active noise control unit 120 of the audio input and output device 100 according to the first embodiment of the present invention may be branched at one point of the voice signal input terminal 113.
단말기(200)의 전원공급장치(210)에서 발생한 전원이 마이크입력단자(240)의 일지점에서 공급되어, 단말기(200)의 이어잭 단자에 연결된 접속부(110)의 음성신호 입력단(113)을 경유할 때, 제2릴레이 스위치(180)가 연결되고 제1릴레이 스위치(170)는 차단되어 능동소음제어부(120)로 공급될 수 있다.The power generated from the power supply device 210 of the terminal 200 is supplied from one point of the microphone input terminal 240, so that the audio signal input terminal 113 of the connection unit 110 connected to the ear jack terminal of the terminal 200 is supplied. When passing through, the second relay switch 180 may be connected and the first relay switch 170 may be cut off and supplied to the active noise controller 120.
한편, 본 발명의 제1 실시예에 따른 오디오입출력장치(100)는 능동소음제어부(120)를 온오프시키도록 제어신호를 생성하여 상기 단말기(200)에 전송하는 스위치부(150)를 더 포함할 수 있다.Meanwhile, the audio input / output device 100 according to the first embodiment of the present invention further includes a switch unit 150 generating a control signal to turn on and off the active noise control unit 120 and transmitting the generated control signal to the terminal 200. can do.
여기서, 스위치부(150)는 사용자가 스위치를 조작하는 과정에서 발생되는 전기신호를 단말기(200)에 전송하여, 단말기(200)가 전원공급장치(210)의 전원을 공급 또는 차단시킴으로써 능동소음제어부(120)가 온오프될 수 있다.Here, the switch unit 150 transmits an electrical signal generated in the process of the user operating the switch to the terminal 200, the terminal 200 to supply or cut off the power of the power supply device 210, the active noise control unit 120 may be turned on or off.
또한, 오디오입출력장치(100)의 음성신호 입력단(113)이 단말기(200)의 마이크입력단자(240)와 연결되어 음성신호를 입력받아 단말기(200)에 전송하는 마이크(160)와 음향신호의 볼륨 조절, 음원의 재생 및 정지, 통화 시작 및 종료를 위한 전기신호를 생성하여 단말기(200)에 전송하는 리모컨(미도시)이 더 포함될 수 있다.In addition, the audio signal input terminal 113 of the audio input / output device 100 is connected to the microphone input terminal 240 of the terminal 200 to receive a voice signal and transmit it to the terminal 200 and the sound signal of the microphone 160. Remote control (not shown) for generating an electrical signal for adjusting the volume, playback and stop of the sound source, start and end of the call to the terminal 200 may be further included.
도2는 본 발명의 제2 실시예에 따른 오디오입출력장치의 블록도이다.2 is a block diagram of an audio input / output device according to a second embodiment of the present invention.
여기서는, 제2음향신호 출력단(312)과 음성신호 입력단(313)을 통해 전원을 공급받는 오디오입출력장치(300)의 구성을 도시하였으며, 제1 실시예와 동일하거나 유사한 구성에 대해서는 자세한 설명은 생략하기로 한다.Here, a configuration of the audio input / output device 300 supplied with power through the second sound signal output terminal 312 and the voice signal input terminal 313 is shown, and detailed descriptions of the same or similar components as those of the first embodiment will be omitted. Let's do it.
단말기(400)의 전원공급장치(410)에서 발생된 전원이 좌 오디오출력단자(430)의 일지점에서 공급되어, 단말기(400)의 이어잭 단자에 연결된 접속부(310)의 제2음향신호 출력단(312)으로 음향신호와 전원이 동시에 흐르게 된다.Power generated from the power supply 410 of the terminal 400 is supplied from one point of the left audio output terminal 430, the second sound signal output terminal of the connection portion 310 connected to the ear jack terminal of the terminal 400 At 312, the acoustic signal and the power flow simultaneously.
이때, 제1필터부(331)를 거쳐 제2필터부(332)에서 음향신호만 통과하여 제2스피커(342)로 전송되고, 제2필터부(332)를 통과하지 못한 전원은 제1릴레이 스위치(370)로 흐르게 된다.At this time, only the sound signal is transmitted from the second filter unit 332 to the second speaker 342 via the first filter unit 331, and the power that does not pass through the second filter unit 332 is the first relay. Flow to the switch 370.
여기서, 전기신호를 감지한 제1릴레이 스위치(370)가 연결되어 전원이 능동소음제어부(320)로 공급되고, 제1릴레이 스위치에 흐르는 전기신호를 감지한 제2릴레이 스위치(380)는 차단되어 음성신호 입력단(113)으로 전원이 흐르지 않게 된다.Here, the first relay switch 370 that detects an electrical signal is connected to supply power to the active noise control unit 320, and the second relay switch 380 that senses an electrical signal flowing through the first relay switch is blocked. Power does not flow to the voice signal input terminal 113.
결국, 본 발명은 단말기의 전원공급장치를 통해 공급되는 전원을 사용하여 능동소음제어부를 구동시켜, 사용자가 별도의 배터리 및 충전수단이 필요하지 않아 휴대가 간편하고, 배터리 등에서 발생되는 무게를 줄임으로써 착용 시 불편함을 최소화하며, 내부에 별도의 배터리를 수납하기 위한 공간이 필요하지 않아 전체 크기를 줄일 수 있는 오디오입출력장치를 제공한다.After all, the present invention is driven by the active noise control unit using the power supplied through the power supply of the terminal, the user does not need a separate battery and charging means is easy to carry, reducing the weight generated from the battery, etc. It minimizes the inconvenience when wearing and does not need a space for storing a separate battery therein provides an audio input and output device that can reduce the overall size.
위에서 설명한 바와 같이 본 발명에 대한 구체적인 설명은 첨부된 도면을 참조한 실시예에 의해서 이루어졌지만, 상술한 실시예는 본 발명의 바람직한 예를 들어 설명하였을 뿐이기 때문에, 본 발명이 상기의 실시예에만 국한되는 것으로 이해되어져서는 아니 되며, 본 발명의 권리범위는 후술하는 청구범위 및 그 등가개념으로 이해되어져야 할 것이다.As described above, the detailed description of the present invention has been made by the embodiments with reference to the accompanying drawings. However, since the above-described embodiments have only been described with reference to preferred examples of the present invention, the present invention is limited to the above embodiments. It should not be understood that the scope of the present invention is to be understood by the claims and equivalent concepts described below.
(부호의 설명)(Explanation of the sign)
100, 300 : 오디오입출력장치100, 300: Audio input / output device
110, 310 : 접속부110, 310: connection part
111, 311 : 제1음향신호 출력단111, 311: first sound signal output terminal
112, 312 : 제2음향신호 출력단112, 312: second sound signal output stage
113, 313 : 음성신호 입력단113, 313: Voice signal input terminal
114, 314 : 접지단114, 314: ground terminal
120, 320 : 능동소음제어부120, 320: active noise control unit
130, 330 : 필터부130, 330: filter unit
131, 331 : 제1필터부131 and 331: first filter part
132, 332 : 제2필터부132, 332: second filter unit
140, 340 : 스피커140, 340: Speaker
141, 341 : 제1스피커141, 341: first speaker
142, 342 : 제2스피커142, 342: second speaker
150, 350 : 스위치부150, 350: switch unit
160, 360 : 마이크160, 360: microphone
170, 370 : 제1릴레이스위치170, 370: first relay switch
180, 380 : 제2릴레이스위치180, 380: second relay switch
200, 400 : 단말기200, 400: terminal
210, 410 : 전원공급장치210, 410: Power supply
220, 420 : 우 오디오출력단자220, 420: Right audio output terminal
230, 430 : 좌 오디오출력단자230, 430: Left audio output terminal
240, 440 : 마이크입력단자240, 440: Microphone input terminal
250, 450 : 접지단자250, 450: Ground terminal

Claims (6)

  1. 단말기의 이어잭 단자에 삽입되어, 오디오입출력장치와 상기 단말기에서 발생하는 신호를 중계하도록 복수의 음향신호 출력단, 음성신호 입력단, 접지단이 구비되는 접속부; 및A connection part inserted into an ear jack terminal of the terminal and having a plurality of sound signal output terminals, a voice signal input terminal, and a ground terminal for relaying signals generated by the audio input / output device and the terminal; And
    상기 오디오입출력장치의 주위에서 발생하는 소음을 인식하고 상기 소음의 상쇄음을 생성하는 능동소음제어부; 를 포함하고,An active noise controller for recognizing noise generated around the audio input / output device and generating an offset sound of the noise; Including,
    상기 능동소음제어부는 구동에 필요한 전원을 상기 단말기로부터 공급받되, 상기 복수의 음향신호 출력단 중 어느 하나 또는 상기 음성신호 입력단을 통해 공급받는 것을 특징으로 하는The active noise control unit is supplied with the power required for driving from the terminal, characterized in that it is supplied through any one of the plurality of sound signal output terminal or the voice signal input terminal.
    능동소음제어 오디오입출력장치.Active noise control audio input and output device.
  2. 제1항에 있어서,The method of claim 1,
    상기 전원이 공급되는 음향신호 출력단에 연결되어, 상기 단말기로부터 공급받은 상기 전원이 상기 단말기에 역으로 유입되는 것을 방지하는 제1필터부; 및A first filter unit connected to the sound signal output terminal supplied with the power to prevent the power supplied from the terminal from flowing back into the terminal; And
    상기 제1필터부와 연결되어, 상기 전원의 유입을 차단하고 음향신호만을 통과시키는 제2필터부; 를 더 포함하는 것을 특징으로 하는A second filter unit connected to the first filter unit to block the inflow of power and to pass only an audio signal; Characterized in that it further comprises
    능동소음제어 오디오입출력장치.Active noise control audio input and output device.
  3. 제2항에 있어서,The method of claim 2,
    상기 제2필터부와 연결되어 음향신호를 출력하는 제1스피커; 및A first speaker connected to the second filter unit to output an audio signal; And
    상기 복수의 음향신호 출력단 중 상기 제1필터부와 연결되지 않는 음향신호 출력단에 연결되어 음향신호를 출력하는 제2스피커; 를 더 포함하는 것을 특징으로 하는A second speaker connected to an audio signal output terminal not connected to the first filter unit among the plurality of audio signal output terminals to output an audio signal; Characterized in that it further comprises
    능동소음제어 오디오입출력장치.Active noise control audio input and output device.
  4. 제2항에 있어서,The method of claim 2,
    상기 능동소음제어부는,The active noise control unit,
    상기 제1필터부와 제2필터부 사이에서 분기되어 연결되는 것을 특징으로 하는It is characterized in that the branch is connected between the first filter unit and the second filter unit.
    능동소음제어 오디오입출력장치.Active noise control audio input and output device.
  5. 제1항에 있어서,The method of claim 1,
    상기 능동소음제어부는,The active noise control unit,
    상기 음성신호 입력단의 일지점에서 분기되어 연결되는 것을 특징으로 하는Branching at one point of the voice signal input terminal is connected
    능동소음제어 오디오입출력장치.Active noise control audio input and output device.
  6. 제1항에 있어서,The method of claim 1,
    상기 능동소음제어부를 온오프시키도록, 제어신호를 생성하여 상기 단말기에 전송하는 스위치부; 를 더 포함하는 것을 특징으로 하는A switch unit for generating a control signal and transmitting the control signal to the terminal to turn the active noise control unit on and off; Characterized in that it further comprises
    능동소음제어 오디오입출력장치.Active noise control audio input and output device.
PCT/KR2014/009246 2013-12-26 2014-10-01 Audio input/output device for active noise control WO2015099269A1 (en)

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KR10-2013-0163826 2013-12-26
KR1020130163826A KR101527004B1 (en) 2013-12-26 2013-12-26 Audio device with active noise canceling

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US11184705B2 (en) 2019-11-01 2021-11-23 Synaptics Incorporated Protection of speaker from excess excursion

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JPH0965480A (en) * 1995-08-23 1997-03-07 Sony Corp Headphone device
KR20000059223A (en) * 2000-07-24 2000-10-05 이대헌 Vocal massage transmissive ear-microphone for a portable phone
KR20070075664A (en) * 2006-01-14 2007-07-24 삼성전자주식회사 Apparatus and method for reducing noise of earphone
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