WO2022039284A1 - Appareil de commande à distance et système d'affichage sans fil - Google Patents

Appareil de commande à distance et système d'affichage sans fil Download PDF

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Publication number
WO2022039284A1
WO2022039284A1 PCT/KR2020/010842 KR2020010842W WO2022039284A1 WO 2022039284 A1 WO2022039284 A1 WO 2022039284A1 KR 2020010842 W KR2020010842 W KR 2020010842W WO 2022039284 A1 WO2022039284 A1 WO 2022039284A1
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WO
WIPO (PCT)
Prior art keywords
pairing
image
transmission device
trigger signal
wireless communication
Prior art date
Application number
PCT/KR2020/010842
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English (en)
Korean (ko)
Inventor
박규현
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to PCT/KR2020/010842 priority Critical patent/WO2022039284A1/fr
Publication of WO2022039284A1 publication Critical patent/WO2022039284A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H04Q9/04—Arrangements for synchronous operation

Definitions

  • the present disclosure relates to a wireless display system for wirelessly transmitting and receiving A/V data.
  • SD Standard-Definition
  • HD Hi-Definition
  • UHD Ultra High-Definition
  • UHD which supports ultra-high resolution and ultra-high resolution
  • the UHD supports 4K (3840 ⁇ 2160) and 8K (7680 ⁇ 4320) resolutions and surround audio of up to 22.2 channels.
  • Such UHD provides 4 times clearer picture quality compared to HD, even in 4K UHD standards, and 8K UHD provides 16 times clearer picture quality than HD.
  • data transmission is possible only after pairing between a transmitting device that wirelessly transmits A/V data and a device that receives A/V data.
  • An object of the present disclosure is to enable easy pairing between a transmitting device and a receiving device in a wireless display system.
  • An object of the present disclosure is to enable simple pairing between a transmitting device and a receiving device through a remote control device when pairing between the transmitting device and the receiving device is disconnected in a wireless display system.
  • the remote control apparatus for controlling the operations of the image transmission apparatus and the image reception apparatus performs pairing from a first wireless communication interface, a second wireless communication interface, and an image transmission apparatus through the first wireless communication interface receiving a request, and transmitting a first trigger signal for a pairing operation between the video transmission device and the video reception device through the first wireless communication interface to the video transmission device according to the pairing progress request, and the video reception device It may include a processor for transmitting a second trigger signal for the pairing operation through the second wireless communication interface.
  • a wireless display system provides a first wireless communication standard from an image transmission device for wirelessly transmitting A/V data, an image reception device for wirelessly receiving the A/V data, and the image transmission device Receives a pairing progress request through the, and transmits a first trigger signal for a pairing operation between the video transmission device and the video reception device through the first wireless communication standard to the video transmission device according to the pairing progress request, and a remote control device for transmitting a second trigger signal for the pairing operation to the image receiving device through a second wireless communication standard.
  • the user can automatically perform pairing between the transmitting device and the receiving device by using the remote control without a separate local key operation that needs to generate a trigger signal.
  • 1 to 3 are diagrams for explaining the configuration of a display system according to an embodiment of the present disclosure.
  • FIG. 4 is a block diagram illustrating a configuration of a remote control device according to an embodiment of the present disclosure.
  • FIG. 5 is a ladder diagram for explaining a method of operating a display system according to an embodiment of the present disclosure.
  • FIG. 6 is a ladder diagram for explaining a method of operating a display system according to another embodiment of the present disclosure.
  • FIGS. 7 to 11 are diagrams illustrating a process in which pairing is performed between an image transmission device and an image reception device through a remote control device according to an embodiment of the present disclosure.
  • An image transmission device is, for example, an intelligent device in which a computer support function is added to a broadcast reception function, and is faithful to a broadcast reception function and has an Internet function added thereto, such as a handwritten input device and a touch screen Alternatively, a more user-friendly interface such as a spatial remote control may be provided. In addition, it is connected to the Internet and a computer with the support of a wired or wireless Internet function, so that functions such as e-mail, web browsing, banking, or games can also be performed. A standardized general-purpose OS may be used for these various functions.
  • various applications can be freely added or deleted on a general-purpose OS kernel, so that various user-friendly functions can be performed.
  • 1 to 3 are diagrams for explaining the configuration of a display system according to an embodiment of the present disclosure.
  • a display system 1 includes an image transmitting apparatus 100 and an image receiving apparatus 200 .
  • the display system 1 may be a system in which the image transmission apparatus 100 wirelessly transmits A/V data to the image reception apparatus 200 and the image reception apparatus 200 outputs A/V data.
  • the image transmission apparatus 100 may be a device capable of encoding a content image and audio and wirelessly transmitting the encoded content image and audio.
  • the image transmission apparatus 100 may be a set-top box.
  • the image receiving apparatus 200 may be a display apparatus capable of wirelessly receiving an encoded content image and audio and decoding the received content image and audio.
  • the image transmission apparatus 100 and the image reception apparatus 200 may constitute a video wall display system.
  • the display having a thin bezel plays an important role in the visualization of content images.
  • a thin bezel of a display it is efficient to have only a component that can play a minimal role, and to perform a circuit or a component for a main function in a separate device.
  • the image transmission apparatus 100 may determine the type of the content image input from the outside, and determine the compression ratio of the content image based on the determined type.
  • the compression ratio of the content image may indicate a compression ratio of the data size of the content image.
  • the content image type may include a still image type, a general video type, and a game video type.
  • the image transmission apparatus 100 may compress the content image according to the determined compression ratio, and wirelessly transmit the compressed content image to the image reception apparatus 200 .
  • the image receiving apparatus 200 may restore the compressed content image received from the image transmission apparatus 100 and display the restored content image on the display.
  • FIG. 2 is a block diagram illustrating detailed configurations of the image transmission apparatus 100 and the image reception apparatus 200 .
  • the image transmission apparatus 100 may include a processor 110 , a content compression unit 130 , a first wireless communication unit 150 , and a memory 170 .
  • the processor 110 may control the overall operation of the image transmission apparatus 100 .
  • the processor 110 may be configured in the form of a system on chip (SoC).
  • SoC system on chip
  • a plurality of processors 110 may be provided.
  • the processor 110 may determine a compression ratio of externally inputted audio or video according to the type of the content image, and may transmit one or more of audio or video to the content compression unit 130 according to the determined compression ratio.
  • the content compression unit 130 may change the compression rate of the content image according to the radio quality to compensate for the loss of the content image or the disconnection of the wireless connection.
  • the content image may include one or more of audio and video.
  • the content compression unit 130 may lower the data transmission rate (meaning increasing the compression rate).
  • the content compression unit 130 may increase the data transmission rate when the radio quality is good (the compression rate is low).
  • the content compression unit 130 may be referred to as an encoder.
  • the first wireless communication unit 150 may wirelessly transmit the content image compressed by the content compression unit 130 to the image receiving apparatus 200 .
  • the memory 170 may store one or more signal patterns used for synchronizing an AV signal and a control signal matching the AV signal.
  • the first wireless communication unit 150 may include a first wireless transmission unit 151 , a second wireless transmission unit 153 , and a third wireless transmission unit 155 .
  • the first wireless communication unit 150 may transmit the compressed content image to the second wireless communication unit 210 of the image receiving apparatus 200 through 2 channels.
  • each of the first wireless transmitter 151 and the second wireless transmitter 153 may transmit the compressed content image to the first wireless receiver 211 and the second wireless receiver 213 of the image receiving apparatus 200 . .
  • the reason for using 2 channels is to reduce transmission delay by transmitting a compressed content image through a channel having better radio quality.
  • the reason for using two channels may be to divide and transmit the content image through two channels because a content image having a 4K resolution has a large data capacity.
  • Each of the first wireless transmitter 151 and the second wireless transmitter 153 may include a baseband module for baseband communication and an RF module for RF communication.
  • the baseband module may generate unmodulated low frequency band data for the compressed content image and transmit it to the RF module.
  • the RF module may convert data of a low frequency band into a high frequency band according to a radio frequency (RF) communication standard, and transmit the converted data for the content image to the image receiving apparatus 200 .
  • RF radio frequency
  • the third wireless transmitter 155 may perform BLE communication with the remote control device 400 to be described later.
  • the third wireless transmitter 155 may include a Wi-Fi module or a BLE module (BLE circuit) supporting the BLE standard.
  • the image receiving apparatus 200 may include a second wireless communication unit 210 , a content restoration unit 230 , and a display 250 .
  • the second wireless communication unit 210 may include a first wireless receiver 211 , a second wireless receiver 213 , a third wireless receiver 215 , and a fourth wireless receiver 217 .
  • the second wireless communication unit 210 may also be configured with two channels.
  • Each of the first wireless receiver 211 and the second wireless receiver 213 may include a baseband module for baseband communication and an RF module for RF communication.
  • the RF module may receive data of a high frequency band from the image transmission apparatus 100 according to a radio frequency (RF) communication standard.
  • RF radio frequency
  • the baseband module may convert data in the high frequency band into data in the low frequency band.
  • the third wireless receiver 215 may be used for pairing with the image transmission device 100 .
  • the third wireless receiver 215 may include a BLE module (BLE circuit).
  • the content restoration unit 230 may decode the content image received through the second wireless communication unit 210 .
  • the content restoration unit 230 may restore the compressed content image to a content image having an original size.
  • the content restoration unit 230 may include a decoder.
  • the display 250 may display the restored content image.
  • the image receiving apparatus 200 may further include a memory 260 .
  • the image receiving apparatus 200 may store information received from the image transmitting apparatus 100 and a program for executing an application.
  • FIG. 4 is a block diagram illustrating a configuration of a remote control device according to an embodiment of the present disclosure.
  • the remote control device 400 may include a wireless communication interface 410 , a user input interface 430 , a memory 450 , and a controller 490 .
  • the wireless communication interface 410 may be an interface for performing wireless communication with the image transmission apparatus 100 or the image reception apparatus 200 .
  • the wireless communication interface 410 may include a Bluetooth Low Energy (BLE) module 411 and an IR (InfraRed) module 413 .
  • BLE Bluetooth Low Energy
  • IR InfraRed
  • the BLE module 411 may transmit a signal for controlling the operation of the image transmission apparatus 100 to the image transmission apparatus 100 .
  • the BLE module 411 may transmit a signal triggering a pairing operation of the image transmission device 100 to the image transmission device 100 .
  • the user input interface 430 may include a keypad, a button, a touch pad, or a touch screen.
  • the user input interface 430 may generate a control command for controlling the operation of the image transmitting apparatus 100 or the image receiving apparatus 200 according to a user's manipulation command.
  • the user input interface 430 includes a hard key button
  • the user may operate the hard key through a push operation of the hard key button.
  • the user input interface 430 may include various types of input means that can be manipulated by the user, such as a scroll key or a jog key.
  • the memory 450 may store a program for the operation of the controller 490 and may temporarily store input/output data.
  • the controller 490 controls the operation related to the application program and the general operation of the remote control device 400 .
  • FIG. 5 is a ladder diagram for explaining a method of operating a display system according to an embodiment of the present disclosure.
  • FIG. 5 is a view for explaining a process of performing a pairing operation through a local key provided in each of the image transmission apparatus 100 and the image reception apparatus 200 .
  • the image transmission apparatus 100 receives a first local key input triggering a pairing operation with the image reception apparatus 200 (S501).
  • the first local key input may be an input for changing the operation mode of the image transmission apparatus 100 to the pairing mode.
  • the first local key input may be an input for selecting a local key provided in the image transmission apparatus 100 for a predetermined time or longer.
  • the image transmission device 100 switches its operation mode to the pairing mode according to the first local key input (S503).
  • the image receiving device 200 receives a second local key input triggering a pairing operation with the image transmitting device 100 (S505).
  • the second local key input may be an input for changing the operation mode of the image receiving apparatus 200 to the pairing mode.
  • the second local key input may be an input for selecting a local key provided in the image receiving apparatus 100 for a predetermined time or longer.
  • the image receiving device 200 switches its operation mode to the pairing mode according to the second local key input (S507).
  • the video transmission device 100 transmits the first pairing information to the video reception device 200 according to the transition to the pairing mode (S509).
  • the first pairing information may be identification information for identifying the image transmission device 100 .
  • the first pairing information may include one or more of a MAC address and a country code of the image transmission apparatus 100 .
  • the country code may be a code for identifying a country in which the image transmission apparatus 100 will be used.
  • the image receiving device 200 transmits the second pairing information to the image transmitting device 100 according to the conversion to the pairing mode (S511).
  • the second pairing information may include one or more of a MAC address and a country code of the image receiving device 200 .
  • the country code may be a code for identifying a country in which the image receiving apparatus 200 will be used.
  • the video transmission device 100 determines whether the first pairing information and the second pairing information match, and when the first pairing information and the second pairing information match, transmits a pairing request to the video reception device 200 (S513) ).
  • the video reception device 200 transmits a pairing response (or pairing Ack) allowing pairing in response to the pairing request received from the video transmission device 100 ( S515 ).
  • the image transmission apparatus 100 and the image reception apparatus 200 are paired with each other (S517).
  • the image transmission apparatus 100 is in a state in which A/V data can be transmitted to the image reception apparatus 200 , and the image reception apparatus 200 can receive A/V data from the image transmission apparatus 100 . is in a state of being
  • Each of the image transmitting apparatus 100 and the image receiving apparatus 200 generates a trigger signal through a local key included in each, and performs a pairing operation through a wireless communication chip of each device according to the trigger signal.
  • FIG. 6 is a ladder diagram for explaining a method of operating a display system according to another embodiment of the present disclosure.
  • a display system may include an image transmission apparatus 100 , an image reception apparatus 200 , and a remote control apparatus 400 .
  • the remote control device 400 may be used to re-perform pairing.
  • the image transmission apparatus 100 and the image reception apparatus 200 may be in a standby state in which the power is not turned on.
  • the image transmission apparatus 100 and the remote control apparatus 200 may be paired with each other.
  • the processor 110 of the image transmission device 100 transmits a pairing progress request to the remote control device 400 through the third wireless transmitter 155 ( S601 ).
  • the processor 110 of the image transmission device 100 may transmit a pairing progress request to the remote control device 400 .
  • the processor 110 may transmit a pairing progress request to the BLE module 410 of the remote control device 400 through the Wi-Fi module provided in the third wireless transmitter 155 .
  • the pairing progress request may be a request for automatically performing a pairing operation between the image transmission device 100 and the image reception device 200 .
  • the processor 110 may periodically transmit a pairing progress request to the remote control apparatus 400 .
  • the image transmission device 100 may transmit a pairing progress request to the remote control device 400 .
  • the remote control device 400 may receive a pairing progress request from the video transmission device 100 .
  • the image transmission device 100 After the image transmission device 100 is paired with the remote control device 400 , it may output the pairing completion through an LED. To this end, the image transmission apparatus 100 may include one or more LEDs.
  • the controller 490 of the remote control device 400 transmits a first trigger signal for switching to the pairing mode through the first wireless communication standard in response to the pairing progress request received from the video transmission device 100, the video transmission device It is transmitted to (100) (S603).
  • the first trigger signal may be a signal for changing the operation mode of the image transmission apparatus 100 to the pairing mode.
  • the first wireless communication standard may be a BLE standard. That is, the controller 490 of the remote control device 400 transmits the first trigger signal for switching the operation mode of the video transmission device 100 to the pairing mode according to the pairing progress request received from the video transmission device 100 , by BLE.
  • the image may be transmitted to the third wireless transmitter 155 of the image transmission apparatus 100 through the module 410 .
  • the first trigger signal may include a command for terminating pairing with the image transmission apparatus 100 . This is because, in the case of the BLE standard, 1:1 communication is performed.
  • the processor 110 of the image transmission device 100 switches its operation mode to the pairing mode based on the first trigger signal received from the remote control device 400 (S605).
  • the processor 110 may enter the image transmission device 100 into a pairing mode for pairing with a device other than the remote control device 400 .
  • the processor 110 may turn on the power based on the first trigger signal and enter its operation mode into the pairing mode.
  • the controller 490 of the remote control device 400 transmits a second trigger signal for switching to the pairing mode to the image receiving device 200 through the second wireless communication standard (S607).
  • the second wireless communication standard may be an IR communication standard.
  • the controller 490 of the remote control device 400 may transmit a second trigger signal to the fourth wireless receiver 217 of the image receiving device 200 through the IR module 413 .
  • the fourth wireless receiver 217 may include an IR module.
  • the remote control device 400 may transmit a trigger signal to each of the image transmitting apparatus 100 and the image receiving apparatus 200 through different wireless communication standards.
  • the remote control device 400 may transmit the first trigger signal to the image transmission device 100 through the BLE standard and transmit the second trigger signal to the image reception device 200 through the IR communication standard.
  • the controller 490 controls each of the BLE module 411 and the IR module 413 to simultaneously transmit each of the first trigger signal and the second trigger signal to the image transmission device 100 and the image reception device 200, respectively. can do.
  • the image receiving device 200 switches its operation mode to the pairing mode based on the second trigger signal received from the remote control device 400 (S609).
  • the image receiving device 200 may turn on the power based on the second trigger signal received from the remote control device 400 and change its operation mode to the pairing mode.
  • the image receiving apparatus 200 may further include a microcomputer (not shown) that turns on the power according to the second trigger signal.
  • the processor 110 of the image transmission apparatus 100 is switched to the pairing mode, the first pairing information required for pairing with the image reception apparatus 200 is transmitted to the image reception apparatus 200 through the third wireless transmitter 155. It transmits to the third wireless transmitter 215 (S611).
  • the first pairing information may include identification information for identifying the image transmission device 100 .
  • the first pairing information may include a MAC address and a country code.
  • the third wireless transmitter 215 of the image transmitting device 100 transmits the second pairing information required for pairing with the image transmitting device 100 . ) to (S613).
  • the second pairing information may include identification information for identifying the image receiving device 200 .
  • the second pairing information may include a MAC address and a country code.
  • the processor 110 of the video transmission device 100 compares the first pairing information with the second pairing information received from the video reception device 200, and when the first pairing information and the second pairing information match, the third pairing information
  • the pairing request is transmitted to the third wireless transmitter 215 of the image receiving apparatus 200 through the wireless transmitter 155 (S615).
  • the processor 110 may transmit a pairing request to the image receiving device 200 . .
  • the third wireless receiver 215 of the video receiving device 200 transmits a pairing response (or pairing Ack) allowing pairing to the video transmitting device 100 (S617).
  • the image transmission apparatus 100 and the image reception apparatus 200 may complete pairing with each other.
  • the display 230 of the image reception apparatus 200 displays a notification indicating that pairing is complete (S619).
  • the image transmission apparatus 100 may transmit image data and audio data to the image reception apparatus 200 through one or more of the first wireless transmitter 151 and the second wireless transmitter 153 .
  • the image transmission apparatus 100 may wirelessly transmit A/V data to the image reception apparatus 200 through RF communication.
  • the image receiving apparatus 200 may output received image data on the display 250 and output audio data through a speaker (not shown).
  • pairing between the image transmission device 100 and the image reception device 200 constituting the detachable wireless display system according to an embodiment of the present disclosure is performed, the user does not need to operate a separate local key to generate a trigger signal, Pairing can be performed automatically using the remote control.
  • FIGS. 7 to 11 are diagrams illustrating a process in which pairing is performed between an image transmission device and an image reception device through a remote control device according to an embodiment of the present disclosure.
  • FIG. 7 will be described.
  • the image transmitting apparatus 100 may be a set-top box, and the image receiving apparatus 200 may be a display apparatus.
  • the image transmission apparatus 100 and the image reception apparatus 200 are in a state in which pairing is not performed with each other.
  • the image transmission device 100 may transmit a pairing progress request to the remote control device 400 .
  • the image transmission device 100 may transmit a pairing progress request to the remote control device 400 .
  • the remote control device 400 transmits a first trigger signal (BLE signal) through the BLE standard to the video transmission device 100 according to the pairing progress request received from the video transmission device 100,
  • a second trigger signal (IR signal) may be transmitted to the image receiving device 200 through an IR communication standard.
  • the remote control device 400 may transmit a trigger signal for switching each of the image transmitting apparatus 100 and the image receiving apparatus 200 to the pairing mode through another standard.
  • each of the image transmitting apparatus 100 and the image receiving apparatus 200 may prepare for pairing according to a trigger signal received from the remote control apparatus 400 .
  • the image transmission device 100 may transmit the first pairing information to the image reception device 200 in response to the first trigger signal received from the remote control device 400 .
  • the first pairing information may include a MAC address and a country code of the image transmission device 100 .
  • the image receiving device 200 may transmit the second pairing information to the image transmitting device 100 in response to the second trigger signal received from the remote control device 400 .
  • the second pairing information may include a MAC address and a country code of the image receiving device 200 .
  • the image transmission device 100 may compare the first pairing information with the second pairing information and determine whether they match.
  • the video transmission device 100 may transmit a pairing request to the video reception device 200 .
  • the image receiving device 200 may transmit a pairing response allowing pairing to the image transmitting device 100 in response to the pairing request.
  • pairing between the image transmission apparatus 100 and the image reception apparatus 200 may be completed.
  • the image receiving device 200 may display a notification 1000 indicating that pairing with the image transmitting device 100 is complete.
  • the user may recognize that pairing between the image transmission apparatus 100 and the image reception apparatus 200 is completed through the notification 1000 .
  • two devices may be automatically paired through the remote control device 400 . .
  • the user does not need to input a separate local key, and thus user convenience can be greatly improved.
  • the above-described method may be implemented as processor-readable code on a medium in which a program is recorded.
  • processor-readable medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage device.

Abstract

La présente divulgation concerne un appareil de commande à distance pour commander les opérations d'un appareil de transmission d'image et d'un appareil de réception d'image qui, selon un mode de réalisation, peut comprendre : une première interface de communication sans fil ; une seconde interface de communication sans fil ; et un processeur pour recevoir, à partir de l'appareil de transmission d'image, une requête de progression d'appariement par l'intermédiaire de la première interface de communication sans fil, transmettre, à l'appareil de transmission d'image, un premier signal de déclenchement pour une opération d'appariement entre l'appareil de transmission d'image et l'appareil de réception d'image, par l'intermédiaire de la première interface de communication sans fil, en fonction de la requête de progression d'appariement et transmettre, à l'appareil de réception d'image, un second signal de déclenchement pour l'opération d'appariement par l'intermédiaire de la seconde interface de communication sans fil.
PCT/KR2020/010842 2020-08-19 2020-08-19 Appareil de commande à distance et système d'affichage sans fil WO2022039284A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130114405A (ko) * 2012-04-09 2013-10-17 엘지전자 주식회사 영상 표시 기기 및 그 동작 방법
KR20160000292A (ko) * 2014-06-24 2016-01-04 한화테크윈 주식회사 휴대용단말기를 이용한 원격제어방법 및 원격제어시스템
KR101851532B1 (ko) * 2011-11-23 2018-06-11 삼성전자주식회사 자동 페어링을 위한 단말 장치, 원격 제어 장치 및 방법
JP2018146762A (ja) * 2017-03-06 2018-09-20 株式会社第一興商 カラオケ装置、リモコン装置
KR20200086142A (ko) * 2019-01-08 2020-07-16 삼성전자주식회사 영상 표시 장치 및 그 동작방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101851532B1 (ko) * 2011-11-23 2018-06-11 삼성전자주식회사 자동 페어링을 위한 단말 장치, 원격 제어 장치 및 방법
KR20130114405A (ko) * 2012-04-09 2013-10-17 엘지전자 주식회사 영상 표시 기기 및 그 동작 방법
KR20160000292A (ko) * 2014-06-24 2016-01-04 한화테크윈 주식회사 휴대용단말기를 이용한 원격제어방법 및 원격제어시스템
JP2018146762A (ja) * 2017-03-06 2018-09-20 株式会社第一興商 カラオケ装置、リモコン装置
KR20200086142A (ko) * 2019-01-08 2020-07-16 삼성전자주식회사 영상 표시 장치 및 그 동작방법

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