WO2020037746A1 - Microphone équipé d'une interface de conversion intelligente et procédé de mise en œuvre - Google Patents

Microphone équipé d'une interface de conversion intelligente et procédé de mise en œuvre Download PDF

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Publication number
WO2020037746A1
WO2020037746A1 PCT/CN2018/106033 CN2018106033W WO2020037746A1 WO 2020037746 A1 WO2020037746 A1 WO 2020037746A1 CN 2018106033 W CN2018106033 W CN 2018106033W WO 2020037746 A1 WO2020037746 A1 WO 2020037746A1
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WO
WIPO (PCT)
Prior art keywords
terminal
trrs
microphone
signal
plug
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Application number
PCT/CN2018/106033
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English (en)
Chinese (zh)
Inventor
谢奕
周向军
彭国真
Original Assignee
深圳市爱图仕影像器材有限公司
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Application filed by 深圳市爱图仕影像器材有限公司 filed Critical 深圳市爱图仕影像器材有限公司
Publication of WO2020037746A1 publication Critical patent/WO2020037746A1/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
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • 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

Definitions

  • the present invention relates to a microphone, more specifically, to a microphone with an intelligent conversion interface and a method for implementing the same.
  • a microphone scientifically known as a microphone, is an energy conversion device that converts sound signals into electrical signals. It is transliterated from the English word "Microphone", and is also called a microphone or a microphone.
  • Professional microphones are mainly used for high-quality recording equipment, mainly cameras, voice recorders and other professional equipment. The interfaces used by these professional equipment are generally three-section TRS and four-section TRRS male or female.
  • TRS three-section TRS and four-section TRRS male or female.
  • mobile phones have become an indispensable daily necessity in people's lives.
  • mobile phones have built-in microphones, the microphones of mobile phones are mainly used for communication. The requirements for recording are not high and the sound cannot be reproduced with high quality. In order for the phone to record high-quality recordings, an external professional microphone is necessary.
  • the output of analog microphones on the market is generally three sections of TRS and four sections of TRRS (CTIA), and different recording equipment defines different types of recording interface, so the interface of the microphone and recording equipment needs to be matched to work properly.
  • the type of input interface of the recording device limits the use of the microphone.
  • the microphone of the TRS output interface requires an additional TRS to TRRS cable to be used on mobile phones, and the TRRS output lavalier microphone needs an additional TRRS to TRS cable to be used on the recorder or computer.
  • the microphone needs an additional extension cable, which is very inconvenient and unintelligent.
  • the technical problem to be solved by the present invention is to provide a microphone that automatically switches the connection channel between the audio signal of the microphone and the TRRS interface device, which can be applied to multiple types of interfaces, and one machine is multi-purpose, which is convenient for users.
  • the present invention also provides a Method for implementing microphone with intelligent conversion interface.
  • the present invention provides a microphone with an intelligent conversion interface and an implementation method.
  • a microphone with an intelligent conversion interface includes a microphone body and a TRRS interface device, and further includes an intelligent switching circuit for automatically identifying the interface type of a recording device and automatically switching the audio signal channel of the microphone.
  • the smart switching circuit includes a detection unit for detecting a bias voltage at a signal terminal of the TRRS interface device; and a switching unit for switching between the signal terminals of the TRRS interface device according to a detection result of the detection unit.
  • the TRRS interface device uses a four-port plug or socket.
  • the TRRS interface device uses a four-port plug, including a first signal terminal, a second signal terminal, a third signal terminal, and a fourth signal terminal.
  • the first signal terminal is a connection to an audio signal of a TS or TRS interface. Terminal
  • the second signal terminal is a connection terminal with the TRS interface audio signal
  • the third signal terminal is a ground terminal
  • the fourth signal terminal is a connection terminal with the TRRS interface audio signal.
  • the detection unit and the switching unit are electrically connected to a TRRS plug, respectively, and the switching unit is also electrically connected to an audio signal of a microphone.
  • the detection unit is electrically connected to the first signal terminal, the second signal terminal, and the fourth signal terminal on the TRRS plug, respectively.
  • the switching unit is an electronic switch and is provided with a common terminal, a first connecting terminal, and a second connecting terminal.
  • the common terminal is electrically connected to the audio signal of the microphone, and the first connecting terminal is connected to the first on the TRRS plug.
  • the signal terminal is electrically connected, and the second connection terminal is electrically connected to a fourth signal terminal on the TRRS plug.
  • a method for implementing a microphone with an intelligent conversion interface includes the following steps:
  • the detection unit detects a bias voltage on the first signal terminal, the second signal terminal, and the fourth signal terminal on the TRRS plug;
  • the detection unit When the detection unit detects that the first signal terminal on the TRRS plug has a bias voltage, the detection unit automatically controls the common terminal of the switching unit to be electrically connected to the first connection terminal on the TRRS plug, so that the audio signal of the microphone is connected to the TRRS plug.
  • the connection channel of the first signal end is connected;
  • the detection unit When the detection unit detects that the second signal terminal on the TRRS plug has a bias voltage, the detection unit automatically controls the common terminal of the switching unit to be electrically connected to the second signal terminal on the TRRS plug, so that the audio signal of the microphone is connected to the TRRS plug.
  • the detection unit When the detection unit detects that the fourth signal terminal on the TRRS plug has a bias voltage, the detection unit automatically controls the common end of the electronic switch to be electrically connected to the fourth signal terminal on the TRRS plug, so that the audio signal of the microphone is directly connected to the TRRS plug.
  • the connection channel of the fourth signal end on the communication When the detection unit detects that the fourth signal terminal on the TRRS plug has a bias voltage, the detection unit automatically controls the common end of the electronic switch to be electrically connected to the fourth signal terminal on the TRRS plug, so that the audio signal of the microphone is directly connected to the TRRS plug.
  • the invention detects the bias voltage on the signal end of the TRRS plug by setting a detection unit in the microphone body, and switches the connection channel of the audio signal of the microphone and the signal end of the TRRS plug through the switching unit.
  • the multi-purpose function of the machine is convenient for users.
  • FIG. 1 is a schematic diagram of a circuit principle of the present invention.
  • FIG. 2 is a schematic block diagram of the present invention.
  • FIG. 3 is a schematic structural diagram of a TS plug.
  • FIG. 4 is a structural diagram of a TRS plug.
  • FIG. 5 is a schematic structural diagram of a TRRS plug according to the present invention.
  • the TS plug shown in FIG. 3 has two signal terminals, L and G terminals.
  • the L terminal When connecting a recording device, the L terminal is usually connected to the audio signal of the microphone, and the G terminal is grounded.
  • the TRS plug shown in FIG. 4 has three signal terminals, L, R, and G terminals.
  • the L or R terminal is usually connected to the audio signal of the microphone, and the G terminal is grounded.
  • the TRRS plug shown in FIG. 5 has four signal terminals, L, R, G, and M terminals.
  • the M terminal is usually connected to the audio signal of the microphone, and the G terminal is grounded.
  • a TRRS plug is used.
  • a circuit schematic diagram of the present invention is shown in FIG. 1, and a block schematic diagram of the present invention is shown in FIG. 2.
  • this embodiment provides a microphone with an intelligent conversion interface, including a microphone body and a TRRS plug 1.
  • a switching unit 2 and a detection unit 3 are provided in the microphone body, and the switching unit 2 and the detection unit 3 are common. Forms an intelligent switching circuit to identify the interface type of the recording device and automatically switch the audio signal channel of the microphone. In fact, according to different types of interfaces, the connection between the audio signal of the microphone and the different signal ends on the TRRS plug 1 is switched. relationship.
  • the TRRS plug 1 can also be set as a TRRS socket according to actual needs.
  • the TRRS plug 1 or the TRRS socket can be connected to the microphone body as a whole, or it can be connected by a wire.
  • the TRRS plug 1 uses a 4-port plug, and a 4-port socket can also be used. From the head to the tail, the TRRS plug 1 is a first signal terminal 101, a second signal terminal 102, and a third signal. Terminal 103 and fourth signal terminal 104.
  • the first signal terminal 101 is a connection terminal for audio signals with a TS or TRS interface
  • the second signal terminal 102 is a connection terminal for audio signals with a TRS interface
  • the third signal terminal 103 is a ground terminal
  • the fourth signal terminal 104 is connected to a TRRS.
  • the connection end of the interface audio signal is a connection terminal for audio signals with a TS or TRS interface
  • the second signal terminal 102 is a connection terminal for audio signals with a TRS interface
  • the third signal terminal 103 is a ground terminal
  • the fourth signal terminal 104 is connected to a TRRS.
  • the connection end of the interface audio signal is a TRRS.
  • the detection unit 3 is a bias voltage detection unit for detecting a bias voltage of the first signal terminal 101, the second signal terminal 102 and the fourth signal terminal 104 on the TRRS plug 1.
  • the detection unit 3 is connected to the first signal terminal 101, The second signal terminal 102 and the fourth signal terminal 104 are electrically connected.
  • the switching unit 2 is an electronic switch, and includes a common terminal 203, a first connection terminal 201, and a second connection terminal 202.
  • the common terminal 203 is electrically connected to the audio signal of the microphone.
  • the signal terminal 101 is electrically connected, and the second connection terminal 202 is electrically connected to the fourth signal terminal 104 on the TRRS plug 1.
  • the detection unit and the switching unit are electrically connected.
  • connection line in FIG. 1 is drawn on the outside of the TRRS plug 1, the actual connection point should be connected to the terminal at the tail of the TRRS plug 1, This is common knowledge of a person of ordinary skill in the art, and I hope that it will not cause misunderstanding.
  • the detection unit 3 When the detection unit 3 detects that the first signal terminal 101 on the TRRS plug 1 has a bias voltage, the detection unit 3 automatically controls the common terminal 203 of the switching unit 2 to be connected to the first connection terminal 201 so that the audio signal of the microphone It is in communication with the connection channel of the TRRS plug 1, and the audio signal of the microphone is electrically connected to the first signal terminal 101 on the TRRS plug 1.
  • This case is applicable when the TRRS plug 1 of the present invention is inserted into a TS socket or a TRS socket (the audio signal end is the L end), and the connection channel can be automatically switched without changing the plug or additional wiring, which is convenient to use.
  • the detection unit 3 When the detection unit 3 detects that the second signal terminal 102 on the TRRS plug 1 has a bias voltage, the detection unit 3 automatically controls the common terminal 203 of the switching unit 2 to be connected to the first connection terminal 201, so that the audio signal of the microphone It is in communication with the connection channel of the TRRS plug 1, and the audio signal of the microphone is electrically connected to the first signal terminal 101 on the TRRS plug 1.
  • This case is applicable when the TRRS plug 1 of the present invention is inserted into a TRS socket (the audio signal end is the R end), and the connection channel can be automatically switched without changing the plug or additional wiring, which is convenient to use.
  • the detection unit 3 When the detection unit 3 detects that the fourth signal terminal 104 on the TRRS plug 1 has a bias voltage, the detection unit 3 automatically controls the common terminal 203 of the switching unit 2 to be connected to the second connection terminal 202, so that the audio signal of the microphone It is in communication with the connection channel of the TRRS plug 1, and the audio signal of the microphone is electrically connected to the fourth signal terminal 104 on the TRRS plug 1.
  • This case is applicable when the TRRS plug 1 of the present invention is inserted into a TRRS socket (the audio signal end is the M end), and the connection channel can be automatically switched without changing the plug or additional wiring, which is convenient to use.
  • the microphone of the present invention can adapt to three types of interfaces of TS, TRS, and TRRS, and can automatically switch the connection channel without changing the plug or additional wiring, which is convenient to use; thus achieving a multi-purpose function of the machine, which is convenient for users. use.
  • the invention also provides a method for implementing a microphone with an intelligent conversion interface, which includes the following steps:
  • the detection unit detects a bias voltage on the first signal terminal, the second signal terminal, and the fourth signal terminal on the TRRS plug;
  • the detection unit When the detection unit detects that the first signal terminal on the TRRS plug has a bias voltage, the detection unit automatically controls the common terminal of the switching unit to be electrically connected to the first connection terminal on the TRRS plug, so that the audio signal of the microphone is connected to the TRRS plug.
  • the connection channel of the first signal end is connected;
  • the detection unit When the detection unit detects that the second signal terminal on the TRRS plug has a bias voltage, the detection unit automatically controls the common terminal of the switching unit to be electrically connected to the second signal terminal on the TRRS plug, so that the audio signal of the microphone is connected to the TRRS plug.
  • the detection unit When the detection unit detects that the fourth signal terminal on the TRRS plug has a bias voltage, the detection unit automatically controls the common end of the electronic switch to be electrically connected to the fourth signal terminal on the TRRS plug, so that the audio signal of the microphone is directly connected to the TRRS plug.
  • the connection channel of the fourth signal end on the communication When the detection unit detects that the fourth signal terminal on the TRRS plug has a bias voltage, the detection unit automatically controls the common end of the electronic switch to be electrically connected to the fourth signal terminal on the TRRS plug, so that the audio signal of the microphone is directly connected to the TRRS plug.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

Cette invention concerne un microphone équipé d'une interface de conversion intelligente. Le microphone comprend un corps de microphone et un dispositif d'interface de connexion de type TRRS, et comprend en outre un circuit de commutation intelligent pour identifier un type d'interface d'un dispositif d'enregistrement audio de façon à commuter automatiquement entre canaux de signal audio du microphone. Le circuit de commutation intelligent comprend : une unité de détection, utilisée pour détecter une tension de polarisation aux extrémités de signal du dispositif d'interface de connexion de type TRRS ; et une unité de commutation, utilisée pour effectuer une commutation entre les extrémités de signal du dispositif d'interface de connexion de type TRRS en fonction d'un résultat de détection de l'unité de détection. Le dispositif d'interface de connexion de type TRRS est une fiche ou une prise ayant quatre ports. La présente invention concerne en outre un procédé de mise en œuvre du microphone équipé de l'interface de conversion intelligente. Selon l'invention, l'unité de détection est disposée dans le corps de microphone pour détecter une tension de polarisation aux extrémités de signal de la fiche de type TRRS, et l'unité de commutation est utilisée pour commuter entre signaux audio et entre des canaux de connexion des extrémités de signal de la fiche de type TRRS. La présente invention est applicable à de multiples types d'interfaces, atteint de multiples objectifs, et est facile à utiliser pour un utilisateur.
PCT/CN2018/106033 2018-08-20 2018-09-17 Microphone équipé d'une interface de conversion intelligente et procédé de mise en œuvre WO2020037746A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810949705.6A CN108769847A (zh) 2018-08-20 2018-08-20 一种带智能转换接口的麦克风及实现方法
CN201810949705.6 2018-08-20

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CN111182417B (zh) * 2020-01-14 2021-06-08 深圳市爱图仕影像器材有限公司 音频接口适配电路、数据线和音频设备
CN112866865B (zh) * 2021-03-15 2021-12-21 北京小鸟科技股份有限公司 多段式耳机自适应切换系统、方法及设备

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Publication number Priority date Publication date Assignee Title
WO2010091551A1 (fr) * 2009-02-13 2010-08-19 深圳华为通信技术有限公司 Procédé d'installation réutilisant une interface de connecteur audio et un dispositif terminal
CN201904906U (zh) * 2010-11-25 2011-07-20 康佳集团股份有限公司 一种音频设备的转换接口电路
CN103096210A (zh) * 2011-11-04 2013-05-08 纬创资通股份有限公司 信号连接模块、电子装置及接头辨识的方法
CN205160733U (zh) * 2015-11-21 2016-04-13 徐文波 话筒连接线及话筒

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