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WO2020256318A1 - Dispositif électronique et procédé d'identification d'un objet inséré dans une prise jack d'écouteur - Google Patents

Dispositif électronique et procédé d'identification d'un objet inséré dans une prise jack d'écouteur Download PDF

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Publication number
WO2020256318A1
WO2020256318A1 PCT/KR2020/007294 KR2020007294W WO2020256318A1 WO 2020256318 A1 WO2020256318 A1 WO 2020256318A1 KR 2020007294 W KR2020007294 W KR 2020007294W WO 2020256318 A1 WO2020256318 A1 WO 2020256318A1
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WO
WIPO (PCT)
Prior art keywords
pin
external object
processor
voltage level
electrical path
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2020/007294
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English (en)
Korean (ko)
Inventor
조성호
이영민
진현수
황인재
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of WO2020256318A1 publication Critical patent/WO2020256318A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/58—Contacts spaced along longitudinal axis of engagement
    • 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
    • H04R2420/09—Applications of special connectors, e.g. USB, XLR, in loudspeakers, microphones or headphones

Definitions

  • Various embodiments relate to an electronic device and method capable of checking an object inserted in an ear jack.
  • the electronic device detects whether the earphone plug is inserted into the ear jack to support input or output of the audio signal, and when it is detected that the earphone plug is inserted, the audio signal is transmitted through the earphone plug. It performs an input or output function.
  • a typical earphone has four terminals: an L terminal for the left output, an R terminal for the right output, an M (mic) terminal for acquiring sound, and a G (ground) terminal for grounding. It has an earphone plug comprising a.
  • the ear jack of the electronic device has a plurality of pins in contact with the four terminals.
  • the electronic device generally includes a 5-pin ear jack in consideration of cost and versatility.
  • the earphone plug is inserted even when moisture or foreign matter is introduced into the ear jack, not the earphone plug.
  • the electronic device determines that the earphone plug is inserted even when moisture or foreign matter has flowed into the ear jack, the audio path is changed toward the earphone, and a defect in which no sound is generated from the electronic device may occur.
  • Various embodiments of the present disclosure provide an electronic device and method capable of determining not only whether an object in the ear jack is inserted, but also the type of the inserted object even when a 5-pin ear jack is applied, so that moisture or foreign matter is introduced into the ear jack.
  • An electronic device may accommodate a 4-pole earphone supporting microphone input and audio output functions, and when the 4-pole earphone is inserted, a first pin and a second pin contacting the L terminal of the earphone, Ear jacks including a third pin in contact with the R terminal, a fourth pin in contact with the G terminal, and a fifth pin in contact with the M terminal, a codec connected to the first pin through a first electrical path, and the first And a processor connected to the first pin through a second electrical path branching at a point of an electrical path, and when the processor receives information indicating that an external object is connected to the first pin from the codec, the It may be set to determine the type of the external object based on an electrical signal acquired through a second electrical path.
  • the method of operating an electronic device includes a first pin and a second pin contacting the L terminal of the earphone plug, a third pin contacting the R terminal, and a third pin contacting the G terminal when a 4-pole earphone is inserted.
  • the electronic device may detect the type of an object inserted into the ear jack without increasing the number of pins connected to the ear jack.
  • the electronic device may reduce malfunction of the electronic device by effectively sensing moisture inside the ear jack.
  • FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments.
  • FIG. 2 is a diagram illustrating a structure of an ear jack of an electronic device according to embodiments of the present disclosure.
  • FIG. 3 is a schematic diagram of a circuit for determining whether an external object in an ear jack of an electronic device is connected according to embodiments of the present disclosure.
  • FIG. 4 is a flowchart illustrating a process of determining whether an external object in an ear jack is connected and a type of the connected external object in an electronic device according to embodiments of the present disclosure.
  • FIG. 5 is a flowchart illustrating a process of determining whether an external object in an ear jack is connected and a type of the connected external object in an electronic device according to embodiments of the present disclosure.
  • FIG. 6 is a flowchart illustrating a process of determining a pole of an earphone plug inserted into an ear jack in an electronic device according to embodiments of the present disclosure.
  • FIG. 7A is a diagram illustrating a case in which moisture flows into an ear jack in an electronic device according to various embodiments of the present disclosure.
  • FIG. 7B is a diagram illustrating a case in which an earphone plug is connected to an ear jack in an electronic device according to various embodiments of the present disclosure.
  • FIG. 7C is a diagram illustrating a case in which a foreign substance enters an ear jack in an electronic device according to various embodiments of the present disclosure.
  • FIG. 1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments.
  • the electronic device 101 communicates with the electronic device 102 through a first network 198 (for example, a short-range wireless communication network), or a second network 199 It is possible to communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network).
  • the electronic device 101 may communicate with the electronic device 104 through the server 108.
  • the electronic device 101 includes a processor 120, a memory 130, an input device 150, an audio output device 155, a display device 160, an audio module 170, and a sensor module ( 176, interface 177, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196, or antenna module 197 ) Can be included.
  • a sensor module 176, interface 177, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196, or antenna module 197
  • at least one of these components may be omitted or one or more other components may be added to the electronic device 101.
  • some of these components may be implemented as one integrated circuit.
  • the sensor module 176 eg, a fingerprint sensor, an iris sensor, or an illuminance sensor
  • the display device 160 eg, a display.
  • the processor 120 for example, executes software (eg, a program 140) to implement at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and can perform various data processing or operations. According to an embodiment, as at least part of data processing or operation, the processor 120 may store commands or data received from other components (eg, the sensor module 176 or the communication module 190) to the volatile memory 132. The command or data stored in the volatile memory 132 may be processed, and result data may be stored in the nonvolatile memory 134.
  • software eg, a program 140
  • the processor 120 may store commands or data received from other components (eg, the sensor module 176 or the communication module 190) to the volatile memory 132.
  • the command or data stored in the volatile memory 132 may be processed, and result data may be stored in the nonvolatile memory 134.
  • the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and a secondary processor 123 (eg, a graphic processing unit, an image signal processor) that can be operated independently or together with the main processor 121 (eg, a central processing unit or an application processor). , A sensor hub processor, or a communication processor). Additionally or alternatively, the coprocessor 123 may be set to use less power than the main processor 121 or to be specialized for a designated function. The secondary processor 123 may be implemented separately from the main processor 121 or as a part thereof.
  • main processor 121 eg, a central processing unit or an application processor
  • a secondary processor 123 eg, a graphic processing unit, an image signal processor
  • the coprocessor 123 may be set to use less power than the main processor 121 or to be specialized for a designated function.
  • the secondary processor 123 may be implemented separately from the main processor 121 or as a part thereof.
  • the coprocessor 123 is, for example, on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, an application is executed). ) While in the state, together with the main processor 121, at least one of the components of the electronic device 101 (for example, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the functions or states related to. According to an embodiment, the coprocessor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). have.
  • an image signal processor or a communication processor may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). have.
  • the memory 130 may store various data used by at least one component of the electronic device 101 (for example, the processor 120 or the sensor module 176 ).
  • the data may include, for example, software (eg, the program 140) and input data or output data for commands related thereto.
  • the memory 130 may include a volatile memory 132 or a nonvolatile memory 134.
  • the program 140 may be stored as software in the memory 130, and may include, for example, an operating system 142, middleware 144, or an application 146.
  • the input device 150 may receive commands or data to be used for components of the electronic device 101 (eg, the processor 120) from outside the electronic device 101 (eg, a user).
  • the input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).
  • the sound output device 155 may output an sound signal to the outside of the electronic device 101.
  • the sound output device 155 may include, for example, a speaker or a receiver.
  • the speaker can be used for general purposes such as multimedia playback or recording playback, and the receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.
  • the display device 160 may visually provide information to the outside of the electronic device 101 (eg, a user).
  • the display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device.
  • the display device 160 may include a touch circuitry set to sense a touch, or a sensor circuit (eg, a pressure sensor) set to measure the strength of a force generated by the touch. have.
  • the audio module 170 may convert sound into an electric signal or, conversely, convert an electric signal into sound. According to an embodiment, the audio module 170 acquires sound through the input device 150, the sound output device 155, or an external electronic device (for example, an external electronic device directly or wirelessly connected to the electronic device 101). Sound may be output through the electronic device 102) (for example, a speaker or headphones).
  • the sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101, or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do.
  • the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.
  • the interface 177 may support one or more designated protocols that may be used for the electronic device 101 to connect directly or wirelessly with an external electronic device (eg, the electronic device 102 ).
  • the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
  • HDMI high definition multimedia interface
  • USB universal serial bus
  • SD card interface Secure Digital Card
  • the connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ).
  • the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).
  • the haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that a user can perceive through a tactile or motor sense.
  • the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
  • the camera module 180 may capture a still image and a video.
  • the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.
  • the power management module 188 may manage power supplied to the electronic device 101.
  • the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).
  • PMIC power management integrated circuit
  • the battery 189 may supply power to at least one component of the electronic device 101.
  • the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.
  • the communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, electronic device 102, electronic device 104, or server 108). It is possible to support establishment and communication through the established communication channel.
  • the communication module 190 operates independently of the processor 120 (eg, an application processor), and may include one or more communication processors that support direct (eg, wired) communication or wireless communication.
  • the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg : A LAN (local area network) communication module, or a power line communication module) may be included.
  • a corresponding communication module is a first network 198 (for example, a short-range communication network such as Bluetooth, WiFi direct or IrDA (infrared data association)) or a second network 199 (for example, a cellular network, the Internet, or It can communicate with external electronic devices through a computer network (for example, a telecommunication network such as a LAN or WAN).
  • the wireless communication module 192 uses subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 in a communication network such as the first network 198 or the second network 199.
  • subscriber information e.g., International Mobile Subscriber Identifier (IMSI)
  • IMSI International Mobile Subscriber Identifier
  • the antenna module 197 may transmit a signal or power to the outside (eg, an external electronic device) or receive from the outside.
  • the antenna module may include one antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern.
  • the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is, for example, provided by the communication module 190 from the plurality of antennas. Can be chosen.
  • the signal or power may be transmitted or received between the communication module 190 and an external electronic device through the at least one selected antenna.
  • other components eg, RFIC
  • other than the radiator may be additionally formed as part of the antenna module 197.
  • At least some of the components are connected to each other through a communication method (e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI))) between peripheral devices and signals ( E.g. commands or data) can be exchanged with each other.
  • a communication method e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)
  • GPIO general purpose input and output
  • SPI serial peripheral interface
  • MIPI mobile industry processor interface
  • the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199.
  • Each of the electronic devices 102 and 104 may be a device of the same or different type as the electronic device 101.
  • all or some of the operations executed by the electronic device 101 may be executed by one or more of the external electronic devices 102 and 104 or the server 108.
  • the electronic device 101 needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device 101 does not execute the function or service by itself.
  • One or more external electronic devices receiving the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit the execution result to the electronic device 101.
  • the electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request.
  • cloud computing, distributed computing, or client-server computing technology may be used.
  • Electronic devices may be devices of various types.
  • the electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance.
  • a portable communication device eg, a smart phone
  • a computer device e.g., a smart phone
  • a portable multimedia device e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a wearable device e.g., a smart bracelet
  • phrases such as “at least one of, B, or C” may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof.
  • Terms such as “first”, “second”, or “first” or “second” may be used simply to distinguish the component from other corresponding components, and the components may be separated from other aspects (eg, importance or Order) is not limited.
  • Some (eg, a first) component is referred to as “coupled” or “connected” to another (eg, a second) component, with or without the terms “functionally” or “communicatively”. When mentioned, it means that any of the above components may be connected to the other components directly (eg by wire), wirelessly, or via a third component.
  • module used in this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic blocks, parts, or circuits.
  • the module may be an integrally configured component or a minimum unit of the component or a part thereof that performs one or more functions.
  • the module may be implemented in the form of an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • Various embodiments of the present document include one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). It may be implemented as software (for example, the program 140) including them.
  • the processor eg, the processor 120 of the device (eg, the electronic device 101) may call and execute at least one command among one or more commands stored from a storage medium. This makes it possible for the device to be operated to perform at least one function according to the at least one command invoked.
  • the one or more instructions may include code generated by a compiler or code executable by an interpreter.
  • a storage medium that can be read by a device may be provided in the form of a non-transitory storage medium.
  • non-transient only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic wave), and this term refers to the case where data is semi-permanently stored in the storage medium. It does not distinguish between temporary storage cases.
  • a signal e.g., electromagnetic wave
  • a method according to various embodiments disclosed in the present document may be provided by being included in a computer program product.
  • Computer program products can be traded between sellers and buyers as commodities.
  • Computer program products are distributed in the form of a device-readable storage medium (e.g. compact disc read only memory (CD-ROM)), or through an application store (e.g., Play Store) or two user devices ( It can be distributed (e.g., downloaded or uploaded) directly between, e.g. smartphones).
  • a device e.g. compact disc read only memory (CD-ROM)
  • an application store e.g., Play Store
  • two user devices It can be distributed (e.g., downloaded or uploaded) directly between, e.g. smartphones).
  • at least a portion of the computer program product may be temporarily stored or temporarily generated in a storage medium that can be read by a device such as a server of a manufacturer, a server of an application store, or a memory of a relay server.
  • each component (eg, module or program) of the above-described components may include a singular number or a plurality of entities.
  • one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added.
  • a plurality of components eg, a module or a program
  • the integrated component may perform one or more functions of each component of the plurality of components in the same or similar to that performed by the corresponding component among the plurality of components prior to the integration. .
  • operations performed by a module, program, or other component are sequentially, parallel, repeatedly, or heuristically executed, or one or more of the above operations are executed in a different order or omitted. Or one or more other actions may be added.
  • FIG. 2 is a diagram illustrating a structure of an ear jack of an electronic device according to embodiments of the present disclosure.
  • 3 is a schematic diagram of a circuit for determining whether an external object in an ear jack of an electronic device is connected according to embodiments of the present disclosure.
  • an electronic device (eg, the electronic device 100 of FIG. 1) according to various embodiments may include an ear jack 200, a codec 250, and a processor or AP 260. I can.
  • the ear jack 200 may mean a socket capable of accommodating an earphone having a microphone input and/or audio output function, and an L terminal and an R terminal in the electronic device through the ear jack 200
  • a four-pole earphone having a terminal, G terminal, and M terminal may be connected, or a three-pole earphone having an L terminal, R terminal, and G terminal may be connected.
  • a four-pole earphone having an L terminal, an R terminal, a G terminal, and an M terminal will be described as an example, but the same embodiment may be applied to a three-pole earphone having an L terminal, an R terminal, and a G terminal.
  • the ear jack 200 includes a first pin 211 and a second pin 212 contacting the L terminal 210 of the earphone plug 201 when a 4-pole earphone is inserted into the ear jack 200.
  • a third pin 221 in contact with the R terminal 220 of the earphone plug 201, a fourth pin 231 in contact with the G terminal 230 of the earphone plug 201 and/or earphone plug 201 It may include a fifth pin 241 in contact with the M terminal 240 of.
  • one side of the fourth pin 231 may be in contact with the G terminal 230 of the earphone plug, and the other side may be connected to a ground (eg, GND in FIG. 2) to be grounded.
  • the plurality of terminals of the 4-pole earphone are shown in the order of the L terminal 210, the R terminal 220, the G terminal 230, and the M terminal 240, but the arrangement order of the terminals may vary. have.
  • a plurality of terminals of a 4-pole earphone may be arranged in the order of an L terminal, an R terminal, an M terminal, and a G terminal.
  • the codec 250 may output an audio signal generated by an electronic device to an external electronic device (eg, an earphone), and conversely, may receive a sound acquired through a microphone.
  • the codec 250 includes an L-end 251 capable of outputting a sound of a left end generated from an electronic device and an R-end 252 capable of outputting a sound of a right end generated from the electronic device. ), and when the earphone plug 201 is inserted into the ear jack 200, sound generated from the electronic device may be output to the earphone.
  • the second pin 212 contacting the L terminal 210 of the earphone plug may be electrically connected to the L terminal 251 of the codec 250.
  • the sound of the left end generated from the electronic device may be output through the L end 251 toward the earphone.
  • the third pin 221 in contact with the R terminal 220 of the earphone plug 201 may be electrically connected to the R terminal 252 of the codec 250, and is generated in an electronic device through the R terminal 251 The sound at the right end can be output to the earphone direction.
  • the codec 250 may include an M stage 253 through which sound can be input from outside the electronic device.
  • the M terminal 253 may be electrically connected to the fifth pin 241 in contact with the M terminal 240 of the earphone plug 201.
  • the electronic device may receive a sound generated from the earphone through the M end 253.
  • the codec 250 may include an L-DET end 254, and the L-DET end 254 is a first pin connected to the L terminal 210 of the earphone plug 201. It can be electrically connected to (211). That is, the L-DET terminal 254 is connected to the first pin 211 through an electrical path, so that an electrical signal from the first pin 211 can be input, and the codec 250 is the L-DET terminal 254 It may be determined whether an external object is connected to the jack 200 based on the change of the signal input from.
  • the ear jack 200 and the L-DET terminal 254 may be connected to a bias power supply 300 and resistors R and 310.
  • the voltage by the bias power supply 300 is applied only to the L-DET terminal 254 by the resistor 310, and the codec 250 is L -A high signal may be input from the DET terminal 254.
  • the voltage of the bias power supply 300 is L-DET terminal due to the resistance of the external object. 254 and may be distributed to the ear jack 200.
  • the codec 250 may receive a low signal from the L-DET terminal 254. According to an embodiment, when the signal input from the L-DET terminal 254 changes from a high signal to a low signal based on the above-described change in the applied voltage, the codec 250 is It can be determined that the object is connected.
  • the processor 260 may be electrically connected to the codec 250, and receives a result of determining whether an external object in the ear jack 200 is connected from the codec 250. can do. In one example, the processor 260 determines whether the type of the external object connected to the ear jack 200 is moisture, earphone plug-in, foreign material, etc., based on the determination that an external object in the ear jack 200 is connected. can do.
  • the first pin 211 of the ear jack 200 may be connected to the L-DET end 254 of the codec 250 through the first electrical path 211A, and the first electrical path ( A second electrical path 211B may be generated by forming a bridge at one point of 211A).
  • the generated second electrical path 211B reaches the processor 260, and the first pin 211 and the processor 260 may be electrically connected, so that the processor 260 is connected to the second electrical path 211B.
  • Voltage level data of the first pin 211 may be obtained.
  • the electronic device may include a memory (not shown) that is electrically connected to the processor 260 (for example, the memory 130 of FIG. 1 ), and the memory is connected to the ear jack 200.
  • a table in which voltage level data for each type of external object is recorded may be stored.
  • a value of the voltage level data of the first pin 211 input to the processor 260 may vary according to the type of an external object connected to the ear jack 200. Accordingly, the processor 260 may compare the voltage level of the first pin 211 with the voltage level data stored in the above table to determine the type of the external object connected in the ear jack 200. For example, since the voltage level data stored in the above table is stored as a digital value, the processor 260 converts the voltage level value of the first pin 211 received through the second electrical path 211B into a digital value. After conversion (ADC conversion), the converted voltage level of the first pin 211 may be compared with the voltage level data of the table.
  • ADC conversion can be performed only when it is determined that an internal or external object is connected.
  • the processor 260 is connected to the ear jack 200. It can be determined that the external object is moisture. As another example, when the voltage level of the first pin 211 transmitted through the second electrical path 211B falls within the second voltage level region designated in the table, the processor 260 is connected to the ear jack 200. It may be determined that the external object is the earphone plug 201. As another example, the processor 260 is connected to the ear jack 200 when the voltage level of the first pin 211 transmitted through the second electrical path 211B falls within the third voltage level region designated in the table. It can be determined that the created external object is a foreign substance such as dust.
  • the processor 260 may apply a voltage to the M terminal 240 of the earphone plug 201 when the earphone plug 201 is connected.
  • a microphone bias power supply (not shown) can be cut off.
  • the electronic device may prevent the electronic device from being corroded or submerged by moisture by cutting off the microphone bias power when moisture is introduced.
  • the processor 260 is the voltage level of the first pin 211 and the voltage level stored in the table at specified time intervals (eg, 1 second) even after it is determined that moisture has flowed into the ear jack 200. By comparing the data, it is possible to check whether moisture is present in the ear jack 200.
  • the microphone bias power cutoff may be released or stopped.
  • the electronic device can determine whether an external object is connected or not, but also a type of the connected external object through the above-described process, thereby minimizing or reducing the occurrence of malfunction.
  • the processor 260 may determine whether the earphone connected in the ear jack 200 is a 4-pole earphone or a 3-pole earphone based on a result of determining that an external object is connected in the ear jack 200.
  • the fifth pin 241 may be electrically connected to the codec 250 through the third electrical path 241A, and a branch is formed at one point of the third electrical path 241A to form a fourth electrical path ( 241B) can be created.
  • the fourth electrical path 241B generated by the above-described branch reaches the processor 260, and the fifth pin 241 and the processor 260 may be electrically connected.
  • the processor 260 may obtain the voltage level data of the fifth pin 241 through the fourth electrical path 241B through the above-described electrical connection relationship.
  • the processor 260 adjusts the voltage applied to the M terminal 240 of the earphone plug through a microphone bias power supply (not shown) to determine whether the earphone connected in the ear jack 200 is a 4-pole earphone or Whether it is a 3-pole earphone can be determined. You can increase it.
  • the processor 260 increases the voltage applied to the M terminal 240 of the earphone plug, and then the fifth pin (which is input through the fourth electrical path 241B) ( By comparing the voltage level data of 241) with a specified threshold value, it may be determined whether the earphone connected in the ear jack 200 is a 4-pole earphone or a 3-pole earphone.
  • the processor 260 compares the voltage level data of the fifth pin 241 with a specified threshold, and when the voltage level of the fifth pin 241 is greater than or equal to the threshold, the ear jack 200 It can be determined that the earphone connected to the inside is a 4-pole earphone. As another example, when the voltage level of the fifth pin 341 is less than the threshold value, the processor 260 may determine that the earphone connected in the ear jack 200 is a 3-pole earphone. In another example, since the M terminal does not exist in the case of a 3-pole earphone, the processor 260 may cut off unnecessary power supply by lowering the microphone bias voltage again when it is determined as a 3-pole earphone.
  • the process of determining the earphone pole of the processor 260 may be performed prior to the process of determining the type of the external object connected in the ear jack 200, and the external object connected in the ear jack 200 is determined to be an earphone plug-in. It may be done later.
  • FIG. 4 is a flowchart illustrating a process of determining whether an external object in an ear jack is connected and a type of the connected external object in an electronic device according to embodiments of the present disclosure.
  • a codec of an electronic device eg, the codec 250 of FIG. 2 and a first electrical path (eg, the L-DET end 254 of FIG. Example: By detecting a change in a signal of a first pin (eg, the first pin 211 of FIG. 2) connected through 211A of FIG. 2, it is possible to determine whether an external object in the ear jack is connected.
  • a first pin eg, the first pin 211 of FIG. 2
  • the codec may determine that an external object is connected within the jack when the signal of the first pin input through the L-DET terminal changes from a high signal to a low signal. -When the signal of the first pin input through the DET terminal does not change to a low signal, it may be determined that there is no connection of an external object in the ear jack.
  • the processor of the electronic device eg, the processor 260 of FIG. 2 is in operation 402, the first pin (eg, FIG. 2). Based on the electrical signal transmitted from the first pin 211 of, the type of the external object connected to the ear jack may be determined.
  • the first pin is connected to the codec through a first electrical path, and a second electrical path (eg, 211B in FIG. 2) may be generated by branching at one point of the first electrical path.
  • the second electrical path may finally reach the processor, and the processor may obtain an electrical signal (eg, voltage level) of the first pin through the second electrical path.
  • the processor of the electronic device compares the voltage level of the first pin with the voltage level data (stored in a table) for each type of external object stored in the memory, and determines whether the external object connected in the ear jack is moisture It is possible to determine whether it is a paper or a foreign object. For example, if the voltage level of the first pin belongs to the designated first voltage level region, it may be determined that the external object connected to the ear jack is several minutes, and the second voltage level region in which the voltage level of the first pin is designated. If it belongs to, it may be determined that an external object connected in the ear jack is an earphone plug-in. As another example, when the voltage level of the first pin falls within the designated third voltage level region, the processor may determine that an external object connected in the ear jack is a foreign object.
  • the processor of the electronic device since the voltage level data stored in the memory is recorded as a digital signal, the processor of the electronic device performs ADC conversion on the voltage level of the first pin, and the voltage level of the ADC converted first pin and the memory are The type of external object connected to the jack can be determined by comparing the voltage level data for each type of the stored external object.
  • the processor of the electronic device may cut off the microphone bias power in operation 403 to prevent corrosion and flooding of the electronic device. .
  • FIG. 5 is a flowchart illustrating a process of determining whether an external object in an ear jack is connected and a type of the connected external object in an electronic device according to embodiments of the present disclosure.
  • the electronic device detects an electrical signal input to a codec (eg, the codec 250 of FIG. 2) from a first pin (eg, the first pin 211 of FIG. 2).
  • a codec eg, the codec 250 of FIG. 2
  • the first pin and the L-DET end of the codec are electrically connected through a first electrical path (eg, 211A in FIG. 2), and the codec is A signal from the first pin may be input through the L-DET terminal, and the received electrical signal may be sensed.
  • the codec of the electronic device may determine whether a signal input through the L-DET terminal has changed from a high signal to a low signal in operation 501.
  • the L-DET end and the ear jack eg, the ear jack 200 in FIG. 2 are connected with a bias power source (eg, 300 in FIG. 3) and a resistor (eg, 310 in FIG. 3), and When an external object is not connected, the voltage of the bias power supply can be applied only to the L-DET terminal.
  • the voltage of the bias power is applied separately to the L-DET terminal and the ear jack, so when an external object is connected in the ear jack, the voltage applied to the L-DET terminal is followed. It can be relatively reduced compared to the case where the external object inside the jack is not connected.
  • the codec of the electronic device determines that an external object is not connected (inserted) in the ear jack when the signal at the L-DET terminal maintains a high signal (when it does not change to a low signal). can do.
  • operation 501 of detecting a signal from the L-DET terminal is repeated again, and it is possible to continuously determine whether an external object in the jack is connected. .
  • a signal of the L-DET terminal changes from a high signal to a low signal, it may be determined that an external object is inserted into the ear jack.
  • a branch is formed at one point of the first electrical path connecting the first pin and the codec to generate a second electrical path (eg, 211B in FIG. 2 ), and the second electrical path reaches the processor.
  • the processor may obtain the voltage level data of the first pin through the second electrical path.
  • the processor compares the voltage level data of the first pin and the table value stored in the memory to the external object connected in the ear jack. You can judge the type of For example, the processor may determine whether an external object connected in the ear jack is moisture, an earphone plug-in, or a foreign object.
  • voltage level data for each type of external object may be stored in a table stored in a memory, and voltage level data for each type of external object is stored as a digital signal, so that the processor uses the voltage level data of the first pin and the table.
  • the voltage level data of the first pin which is an analog signal, may be converted to an ADC.
  • the processor may determine that the external object connected in the ear jack is several minutes. In another example, when the voltage level of the first pin falls within the designated second voltage level region, it may be determined that an external object connected in the ear jack is an earphone plug-in. In another example, when the voltage level of the first pin falls within the designated third voltage level region, it may be determined that an external object connected to the ear jack is a foreign object.
  • the processor of the electronic device determines whether an external object connected in the ear jack is water. If it is determined in operation 506 that the external object is moisture, the processor may cut off the microphone bias power supply in operation 507 to prevent corrosion or flooding of the electronic device.
  • the processor may check whether moisture has been removed from the ear jack by comparing the voltage level of the first pin and voltage level data for each type of external object stored in the table at specified time intervals after operation 507. When it is determined that moisture has been removed from the ear jack, that is, when the voltage level of the first pin is changed, the processor may release the microphone bias power cutoff.
  • FIG. 6 is a flowchart illustrating a process of determining a pole of an earphone plug inserted into an ear jack in an electronic device according to embodiments of the present disclosure.
  • the electronic device is It can be determined whether it is a 3-pole earphone composed of a terminal and a G terminal.
  • the processor of the electronic device may increase the microphone bias voltage applied to the M terminal (eg, 240 of FIG. 2) of the earphone plug (eg, 201 of FIG. 2 ).
  • the processor of the electronic device may compare voltage level data input from the fifth pin of the ear jack (for example, the fifth pin 241 in FIG. 2) with a specified threshold. have.
  • the fifth pin of the ear jack may be electrically connected to a codec (eg, the codec 250 of FIG. 2) through a third electrical path (eg, 241A in FIG. 2), and is one of the third electrical path.
  • Branching is made at the point to generate a fourth electrical path (eg, 241B in FIG. 2 ). Since the fourth electrical path generated by the aforementioned branch reaches the processor, the fifth pin and the processor may be electrically connected, the processor may obtain voltage level data of the fifth pin through the fourth electrical path.
  • the processor determines that the M terminal of the earphone plug is present in operation 603, and the earphone plug connected in the ear jack is 4 It can be judged as a drama.
  • the processor determines in operation 604 that the earphone plug does not exist, and the earphone plug connected in the ear jack is 3 poles. It can be judged as.
  • the processor may lower the microphone bias voltage that was increased in operation 605 in operation 601 again.
  • Operations 601 to 605 may be performed between operations 504 and 505 of FIG. 5, or may be performed after operation 505 according to an embodiment.
  • 7A is a diagram illustrating a case in which moisture flows into an ear jack in an electronic device according to various embodiments of the present disclosure.
  • 7B is a diagram illustrating a case in which an earphone plug is connected to an ear jack in an electronic device according to various embodiments of the present disclosure.
  • 7C is a diagram illustrating a case in which a foreign substance enters an ear jack in an electronic device according to various embodiments of the present disclosure.
  • an electronic device eg, the electronic device 100 of FIG. 1
  • an electronic device includes an ear jack 700, a codec 750, a processor 760, and a memory (not shown).
  • the memory 130 of FIG. 1 may be included.
  • At least one of the components of the electronic device according to an embodiment may be the same as or similar to the components of the electronic device of FIG. 2, and redundant descriptions will be omitted.
  • the ear jack 700 when a 4-pole earphone is inserted, the ear jack 700 includes a first pin 711, a second pin 712, and a third pin contacting the L terminal of the earphone plug. 721, one side may include a fourth pin 731 contacting the G terminal, and the other side may include a fourth pin 731 contacting the ground GND and/or a fifth pin 741 contacting the M terminal.
  • the first pin 711 may be electrically connected to the L-DET end 754 of the codec 750 through the first electrical path 711A
  • the second pin 712 is the codec 750 It may be connected to the L end 751 of.
  • the third pin 721 may be electrically connected to the R end 752 of the codec 750, and the fifth pin 741 may be electrically connected to the M end 753 of the codec 750.
  • a point of the first electrical path 711A may be branched to generate a second electrical path 711B, and the second electrical path 711B is connected to the processor 760, and the processor 760 ) May receive an electrical signal from the first pin 711 through the second electrical path 712B.
  • a signal input from the first pin 711 to the L-DET terminal 754 of the codec 750 is a high signal. Since it may change from the low signal at, the codec 750 may determine that an external object is connected in the jack 700 based on a change in the signal input to the L-DET terminal 754.
  • the processor 760 when the processor 760 receives information indicating that an external object is connected in the ear jack 700 from the codec 750, the first pin 711 input through the second electrical path 711B is The voltage level data may be received, and the received voltage level data of the first pin 711 may be converted into a digital signal by ADC conversion. In one example, the processor 760 may compare the voltage level data of the first pin 711 converted from the ADC with the voltage level data for each type of external object stored in a table of the memory. In another example, when moisture flows into the ear jack 700, the voltage level data of the first pin 711 belongs to the designated first voltage level region, so the processor 760 is connected to the ear jack 700. It is determined that the external object is water, and the microphone bias power supply (not shown) may be cut off.
  • the codec 750 when the earphone plug 701 is connected (inserted) into the ear jack 700, a signal input from the first pin 711 to the L-DET terminal 754 of the codec 750 is high. Since the signal is changed from the low signal, the codec 750 according to an exemplary embodiment may determine that an external object is connected in the jack 700 based on a change in the signal input to the L-DET terminal 754.
  • the processor 760 when it is determined that an external object is connected, receives the voltage level data of the first pin 711 input through the second electrical path 711B, and the received first pin 711 ) Voltage level data can be converted to ADC.
  • the processor 760 may determine that an external object connected in the ear jack 700 is an earphone plug-in based on the voltage level data of the first pin 711.
  • the processor 760 may be electrically connected to the fifth pin 741 through a fourth electrical path 741B branched from the fifth pin 741, and through the aforementioned electrical connection relationship. Voltage level data of the fifth pin 741 may be received. In one example, the processor 760 may compare the voltage level data of the fifth pin 741 with a specified threshold value to determine whether the earphone plug connected in the ear jack 700 is a 4-pole or 3-pole.
  • the process of determining the pole of the earphone plug of the electronic device according to the exemplary embodiment is the same as or similar to the process of determining the pole of the earphone plug of the electronic device of FIG. 3, and thus a duplicate description will be omitted.
  • a signal input from the first pin 711 to the L-DET terminal 754 of the codec 750 is a high signal to a low signal. Since it is changed, the codec 750 according to an embodiment may determine that an external object is connected in the jack 700 based on a change in a signal input to the L-DET terminal 754.
  • the processor 760 receives the voltage level data of the first pin 711 input through the second electrical path 711B, and the received voltage level data of the first pin 711 ADC can be converted.
  • the processor 760 may determine that the external object connected in the ear jack 700 is a foreign object.
  • a 4-pole earphone supporting a microphone input and audio output function may be accommodated, and a first pin that contacts the L terminal of the earphone when the 4-pole earphone is inserted
  • an ear jack including a second pin, a third pin in contact with the R terminal, a fourth pin in contact with the G terminal, and a fifth pin in contact with the M terminal, connected to the first pin through a first electrical path.
  • a codec and a processor connected to the first pin through a second electrical path branching at a point of the first electrical path, wherein the processor indicates that an external object is connected to the first pin from the codec
  • the processor When receiving the information, it may be set to determine the type of the external object based on an electrical signal acquired through the second electrical path.
  • the codec may include an L-DET terminal capable of detecting an L terminal of the 4-pole earphone, and the first pin may be electrically connected to the L-DET terminal of the codec.
  • the codec may detect whether an external object is connected by detecting a change in a signal transmitted from the first pin.
  • the codec may determine that an external object is connected in the ear jack.
  • the processor may determine the type of an external object connected to the ear jack based on the voltage level of the first pin transmitted through the second electrical path.
  • the electronic device further includes a memory in which a table including voltage level data according to a type of an external object is stored, and the processor further includes a memory of the first pin transmitted through the second electrical path.
  • the type of the external object may be determined by comparing the voltage level with the voltage level data stored in the table.
  • the processor determines that an external object connected to the ear jack is several minutes, When the voltage level of the first pin transmitted through the second electrical path falls within the second voltage level region, it is determined that an external object connected in the ear jack is an earphone plug-in, and the transmitted through the second electrical path When the voltage level of the first pin falls within the third voltage level region, it may be determined that an external object connected in the ear jack is a foreign object.
  • the processor may cut off a voltage applied from the microphone bias power source.
  • the fifth pin may be connected to the codec through a third electrical path, and may be connected to the processor through a fourth electrical path branched from one point of the third electrical path.
  • the processor may determine a pole of the earphone connected to the ear jack based on the voltage level of the fifth pin transmitted through the fourth electrical path.
  • the processor may determine that the earphone connected in the ear jack is a 4-pole earphone. .
  • a 4-pole earphone when a 4-pole earphone is inserted, a first pin and a second pin contacting an L terminal of an earphone plug, a third pin, and a G An operation of determining whether an external object in the ear jack including a fourth pin in contact with the terminal and a fifth pin in contact with the M terminal is connected, and when it is determined that an external object in the ear jack is connected, the first pin Determining the type of the external object connected in the ear jack based on the electrical signal of the external object transmitted to the processor from, the first pin is connected to the codec through a first electrical path, and the first It may be connected to the processor through a second electrical path branching from one point of the electrical path.
  • the codec includes an L-DET terminal capable of detecting an L terminal of the 4-pole earphone, and the first pin may be electrically connected to the L-DET terminal of the codec.
  • the operation of determining whether an external object in the ear jack is connected is determined that an external object in the ear jack is connected when a signal input to the codec from the L-DET terminal changes to a low signal. can do.
  • the operation of determining the type of an external object connected in the ear jack is connected to the ear jack based on the voltage level of the first pin transmitted to the processor through the second electrical path.
  • the type of external object can be determined.
  • the operation of determining the type of the external object connected in the ear jack is based on the voltage level of the first pin transmitted to the processor through the second electrical path and the type of the external object stored in the memory. By comparing the corresponding voltage level data, it is possible to determine the type of an external object connected to the ear jack.
  • the operation of determining the type of an external object connected in the ear jack is when the voltage level of the first pin transmitted to the processor through the second electrical path falls within a first voltage level region. , If it is determined that the external object connected in the ear jack is several minutes, and the voltage level of the first pin transmitted to the processor through the second electrical path falls within the second voltage level region, the external object connected in the ear jack If the object is determined to be an earphone plug-in, and the voltage level of the first pin transmitted to the processor through the second electrical path falls within the third voltage level region, it is determined that the external object connected to the ear jack is a foreign object. I can.
  • the operation of cutting off a voltage applied from the microphone bias power source may be further included.
  • the codec may be connected to the codec through a path, and may be connected to the processor through a fourth electrical path branching from one point of the third electrical path.
  • the operation of determining the pole of the earphone plug connected in the ear jack is, when the voltage level of the fifth pin transmitted to the processor through the fourth electrical path is greater than or equal to a specified threshold, the ear It can be determined that the earphone connected in the jack is a 4-pole earphone.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)

Abstract

L'invention concerne un dispositif électronique et un procédé, qui peuvent identifier un objet inséré dans une prise jack d'écouteur. Un dispositif électronique selon un mode de réalisation de la présente invention comprend: une prise jack d'écouteur, qui peut recevoir un écouteur à 4 pôles pour assurer des fonctions d'entrée de microphone et de sortie audio, et comprend des première et seconde broches entrant en contact avec la borne L de l'écouteur lorsque l'écouteur à 4 pôles est inséré à l'intérieur de celle-ci, une troisième broche venant en contact avec la borne R de celle-ci, une quatrième broche venant en contact avec la borne G de celle-ci, et une cinquième broche venant en contact avec la borne M de celle-ci; un codec qui est relié à la première broche au moyen d'un premier trajet électrique; et un processeur qui se connecte à la première broche au moyen d'un second trajet électrique qui se ramifie à partir d'un point du premier trajet électrique, de sorte que, lorsque des informations indiquant qu'un objet externe est connecté à la première broche sont reçues en provenance du codec, le processeur peut être configuré pour déterminer le type de l'objet externe sur la base d'un signal électrique obtenu au moyen du second trajet électrique.
PCT/KR2020/007294 2019-06-17 2020-06-04 Dispositif électronique et procédé d'identification d'un objet inséré dans une prise jack d'écouteur Ceased WO2020256318A1 (fr)

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KR1020190071758A KR20200143985A (ko) 2019-06-17 2019-06-17 이어 잭 내 삽입된 객체를 확인할 수 있는 전자 장치 및 방법

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KR20220139606A (ko) * 2021-04-08 2022-10-17 삼성전자주식회사 액세서리를 인식하는 전자 장치
TWI774396B (zh) 2021-05-27 2022-08-11 瑞昱半導體股份有限公司 用於音訊介面的狀態偵測裝置

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KR20130014752A (ko) * 2011-08-01 2013-02-12 엘지전자 주식회사 휴대 단말기 및 그 제어 방법
KR20130036906A (ko) * 2011-10-05 2013-04-15 삼성전자주식회사 휴대 단말기의 이어폰 인식 방법 및 장치
JP2015226226A (ja) * 2014-05-28 2015-12-14 京セラ株式会社 電子機器、イヤホン、および電子機器システム
KR20160001438A (ko) * 2014-06-27 2016-01-06 삼성전자주식회사 이어 잭 오작동을 방지하는 전자 장치 및 방법
US20190128949A1 (en) * 2017-10-27 2019-05-02 Cirrus Logic International Semiconductor Ltd. Socket monitoring

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KR20130014752A (ko) * 2011-08-01 2013-02-12 엘지전자 주식회사 휴대 단말기 및 그 제어 방법
KR20130036906A (ko) * 2011-10-05 2013-04-15 삼성전자주식회사 휴대 단말기의 이어폰 인식 방법 및 장치
JP2015226226A (ja) * 2014-05-28 2015-12-14 京セラ株式会社 電子機器、イヤホン、および電子機器システム
KR20160001438A (ko) * 2014-06-27 2016-01-06 삼성전자주식회사 이어 잭 오작동을 방지하는 전자 장치 및 방법
US20190128949A1 (en) * 2017-10-27 2019-05-02 Cirrus Logic International Semiconductor Ltd. Socket monitoring

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