Electronic device

Abstract

An electronic device according to an embodiment of the present disclosure may comprise: a battery; a short-range wireless communication interface for communicating with an external device through a short-range wireless communication standard; an external device interface including a universal serial bus (USB) port; and a processor for: receiving a power-off command of the electronic device; receiving, in response to the received power-off command, a charging state of the external device from the external device through the short-range wireless communication interface; and determining whether to charge the external device on the basis of the charging state of the external device.

Description

electronic devices

[0001] The present disclosure relates to an electronic device, and more particularly, to an electronic device capable of charging an external device.

[0002] Digital TV services utilizing wired or wireless networks are becoming more widespread. Digital TV services can offer a variety of services not available with existing analog broadcasting services.

[0003] For example, IPTV (Internet Protocol Television), a type of digital TV service, and smart TV services offer interactivity, allowing users to actively choose the type of program they want to watch and when. Building on this interactivity, IPTV and smart TV services can also offer a variety of additional services, such as internet search, home shopping, and online games.

[0004] Recent display devices can power and charge external devices connected via USB (Universal Serial Bus) when powered on. These external devices can be anything, such as portable speakers, that outputs audio from the display device.

[0005] However, there is a problem that when the display device is powered off, the main system powers off and external devices cannot be charged.

[0006] Additionally, when the display device is powered on to charge an external device, the display screen must be turned on, so there is also the problem of unnecessary screen turning on and power consumption due to the screen being turned on.

[0007] An object of the present disclosure may be to charge an external device while the external device is connected, even when the electronic device is powered off.

[0008] An object of the present disclosure may be to be able to charge an external device according to the charging status of the external device when the electronic device is turned off while the external device is connected.

[0009] An object of the present disclosure may be to charge a connected external device even when the display screen is turned off.

[0010] An electronic device according to one embodiment of the present disclosure may include: a battery; a short-range wireless communication interface for communicating with an external device via a short-range wireless communication standard; an external device interface having a USB (Universal Serial Bus) port; and a processor for receiving a power-off command of the electronic device, receiving a charging status of the external device from the external device via the short-range wireless communication interface according to the received power-off command, and determining whether to charge the external device based on the charging status of the external device.

[0011] An electronic device according to one embodiment of the present disclosure includes a stand; and a head supported by the stand, wherein the head includes a battery, a short-range wireless communication interface for communicating with an external device through a short-range wireless communication standard, an external device interface having a USB (Universal Serial Bus) port, and a processor for receiving a charging status of the external device from the external device through the short-range wireless communication interface when a power-off command of the electronic device is received, and determining whether to charge the external device based on the charging status of the external device.

[0012] According to one embodiment of the present disclosure, a method of operating an electronic device including a battery, a short-range wireless communication interface for communicating with an external device via a short-range wireless communication standard, and an external device interface having a USB (Universal Serial Bus) port may include the steps of: receiving a power-off command of the electronic device; receiving a charging status of the external device from the external device via the short-range wireless communication interface according to the received power-off command; and determining whether to charge the external device based on the charging status of the external device.

[0013] According to an embodiment of the present disclosure, an external device can be charged according to a charging rate of the external device even after the screen of the display is turned off in response to a power-off command.

[0014] Accordingly, the display screen does not need to be turned on to charge an external device, and the screen may not be turned on even when the user does not need to use the display screen.

[0015] Additionally, external devices can be charged even when the power is off, increasing their usability. This can significantly improve the user experience.

[0016] FIG. 1A and FIG. 1B are drawings explaining the structure of a display device according to an embodiment of the present disclosure.

[0017] FIG. 2 is a block diagram illustrating the configuration of a display device according to one embodiment of the present disclosure.

[0018] FIG. 3a is a drawing illustrating the configuration of a system according to one embodiment of the present disclosure.

[0019] FIG. 3b is a drawing illustrating an example of an electronic device equipped with an external device according to one embodiment of the present disclosure.

[0020] FIG. 4 is a block diagram illustrating the configuration of an electronic device and an external device according to an embodiment of the present disclosure.

[0021] FIG. 5 is a flowchart for explaining an operating method of an electronic device according to an embodiment of the present disclosure.

[0022] FIG. 6 is a flowchart illustrating a process for determining whether to charge an external device based on the power supply mode of the electronic device of the present disclosure and the charging status of the external device.

[0023] FIG. 7a and FIG. 7b are drawings explaining the charging process of an external device when the screen of a display is turned on and off according to the prior art.

[0024] FIG. 8 is a drawing illustrating a process of charging an external device when the screen of a display is turned off according to an embodiment of the present disclosure.

[0025] Hereinafter, embodiments related to the present invention will be described in more detail with reference to the drawings. The suffixes "module" and "part" used in the following description for components are assigned or used interchangeably solely for the convenience of writing the specification, and do not in themselves have distinct meanings or roles.

[0026] The direction indications of up (U), down (D), left (Le), right (Ri), front (F), and back (R) shown in the drawings are only for convenience of explanation, and the technical ideas disclosed in this specification are not limited thereby.

[0027] A display device according to an embodiment of the present invention is, for example, an intelligent display device that adds computer-assisted functionality to its broadcast reception function. While faithfully performing the broadcast reception function, it can also be equipped with Internet functionality and other features, providing a more user-friendly interface, such as a manual input device, touch screen, or space remote control. Furthermore, with support for wired or wireless Internet functionality, it can connect to the Internet and a computer, enabling functions such as email, web browsing, banking, or gaming. A standardized, general-purpose operating system can be used for these various functions.

[0028] Accordingly, the display device described in the present invention can perform various user-friendly functions, for example, by allowing various applications to be freely added or deleted on a general-purpose operating system kernel. More specifically, the display device can be a network TV, HBB TV, smart TV, LED TV, OLED TV, etc., and in some cases, it can also be applied to smartphones.

[0029] FIG. 1A and FIG. 1B are drawings explaining the structure of a display device according to an embodiment of the present disclosure.

[0030] Referring to FIGS. 1A and 1B, a display device (1) may include a head (10). The head (10) may include a display panel (11) that displays an image.

[0031] The head (10) may be referred to as a display (10) or a display unit (10).

[0032] The head (10) may include a first long side (LS1), a second long side (LS2) opposite the first long side (LS1), a first short side (SS1) adjacent to the first long side (LS1) and the second long side (LS2), and a second short side (SS2) opposite the first short side (SS1).

[0033] Meanwhile, for convenience of explanation, the lengths of the first and second long sides (LS1, LS2) are illustrated and described as being longer than the lengths of the first and second short sides (SS1, SS2), but it may also be possible for the lengths of the first and second long sides (LS1, LS2) to be approximately equal to the lengths of the first and second short sides (SS1, SS2).

[0034] The direction parallel to the short sides (SS1, SS2) of the head (10) may be referred to as the up-down direction or the first direction (DR1). The direction parallel to the long sides (LS1, LS2) of the head (10) may be referred to as the left-right direction or the second direction (DR2). The direction perpendicular to the short sides (SS1, SS2) and long sides (LS1, LS2) of the head (10) may be referred to as the front-back direction or the third direction (DR3).

[0035] The direction in which the head (10) displays the image may be referred to as the forward (F, z), and the opposite direction may be referred to as the backward (R). The first short side (SS1) may be referred to as the left (Le, x). The second short side (SS2) may be referred to as the right (Ri). The first long side (LS1) may be referred to as the upper side (U, y). The second long side (LS2) may be referred to as the lower side (D).

[0036] The first long side (LS1), the second long side (LS2), the first short side (SS1), and the second short side (SS2) may be referred to as edges of the head (10). The point where the first long side (LS1), the second long side (LS2), the first short side (SS1), and the second short side (SS2) meet may be referred to as a corner. The point where the first short side (SS1) and the first long side (LS1) meet may be a first corner (C1). The point where the first short side (SS1) and the second long side (LS2) meet may be a second corner (C2). The point where the second short side (SS2) and the second long side (LS2) meet may be a third corner (C3). The point where the second short side (SS2) and the first long side (LS1) meet may be a fourth corner (C4).

[0037] The display device (1) may include a stand (20, 30, 40, 50) that supports the head (10).

[0038] The stand (20, 30, 40, 50) may include a base (20), a pole (30), a swivel connector (40), and a support arm (50).

[0039] The stand (20, 30, 40, 50) can be detachably connected to the head (10).

[0040] The base (20) can be placed on the ground. The base (20) can be round or angular. A plurality of wheels (20W) can be provided on the lower surface of the base (20).

[0041] The adapter (CWc) and plug (CWa) connected to the power cable (CW) can be connected to a concentric plug that supplies external power.

[0042] The jack (CWb) of the power cable (CW) can be connected to the base (20).

[0043] The adapter (CWc) can convert external AC power into DC power and supply the converted DC power to the jack (CWb).

[0044] A battery (not shown) may be built into the base (20), pole (30), support arm (50), and / or head (10) and may be charged by power supplied through a power cable (CW). The display device (1) may be powered by the battery and operated while being separated from the power cable (CW).

[0045] The pole (30) can extend vertically from the base (20). The lower end of the pole (30) can be connected to the pole (30) adjacent to the periphery of the base (20).

[0046] The support arm (50) can extend in a direction intersecting the pole (30) and can be coupled to the upper end of the pole (30). The rotary connector (40) can be positioned between the head (10) and the support arm (50) and can be coupled to the head (10) and the support arm (50).

[0047] The head (10) can be supported by a stand (20, 30, 40, 50) and can be spaced upward from the ground.

[0048] The rotary connector (40) can rotate the head (10) up and down or left and right. When an external force is applied to the rotary connector (40), the head (10) can rotate in one or more of the up / down / left / right directions.

[0049] The rotary connector (40) and head (10) may have a detachable structure.

[0050] FIG. 2 is a block diagram illustrating the configuration of a display device according to one embodiment of the present disclosure.

[0051] Referring to FIG. 2, the display device (1) may include an image receiver (130), an external device interface (135), a memory (140), a user input interface (150), a controller (170), a wireless communication interface (173), a display (180), a speaker (185), and a power supply circuit (190).

[0052] Each of the video receiver (130), external device interface (135), memory (140), user input interface (150), controller (170), wireless communication interface (173), display (180), speaker (185), and power supply circuit (190) may be provided on the head (10). However, it is not necessary to be limited thereto, and some components may be provided on the stand (20, 30, 40, 50).

[0053] The video receiver (130) may include a tuner (131), a demodulator (132), and a network interface (133).

[0054] The tuner (131) can select a specific broadcast channel according to a channel selection command. The tuner (131) can receive a broadcast signal for the selected specific broadcast channel.

[0055] The demodulator (132) can separate the received broadcast signal into a video signal, an audio signal, and a data signal related to the broadcast program, and can restore the separated video signal, audio signal, and data signal into a form that can be output.

[0056] The external device interface (135) can receive an application or a list of applications within an adjacent external device and transmit it to the controller (170) or memory (140).

[0057] The external device interface (135) can provide a connection path between the display device (1) and the external device. The external device interface (135) can receive one or more of images and audio output from an external device connected wirelessly or wiredly to the display device (1) and transmit them to the controller (170).

[0058] The external device interface (135) may include a plurality of external input terminals. The plurality of external input terminals may include an RGB terminal, one or more HDMI (High Definition Multimedia Interface) terminals, and a component terminal.

[0059] A video signal of an external device input through an external device interface (135) can be output through a display (180). A voice signal of an external device input through an external device interface (135) can be output through a speaker (185).

[0060] An external device that can be connected to the external device interface (135) may be any one of a set-top box, a Blu-ray player, a DVD player, a game console, a sound bar, a smartphone, a PC, a USB memory, and a home theater, but this is only an example.

[0061] The external device interface (135) may be provided on one or more of the head (10) or the stand (20, 30, 40, 50).

[0062] The network interface (133) can provide an interface for connecting the display device (1) to a wired / wireless network including the Internet.

[0063] The network interface (133) can transmit or receive data to or from other users or other electronic devices via the connected network or another network linked to the connected network.

[0064] The network interface (133) can transmit some content data stored in the display device (1) to a selected user or electronic device among other users or other electronic devices pre-registered in the display device (1).

[0065] The network interface (133) can access a predetermined web page via the connected network or another network linked to the connected network. The network interface (133) can access a predetermined web page via the network and transmit or receive data with the corresponding server.

[0066] The network interface (133) can receive content or data provided by a content provider or network operator. The network interface (133) can receive content such as movies, advertisements, games, VOD, broadcast signals, and other related information provided by a content provider or network provider via a network.

[0067] The network interface (133) can receive firmware update information and update files provided by the network operator, and can transmit data to the Internet or content provider or network operator.

[0068] The network interface (133) can select and receive a desired application from among applications open to the public via a network.

[0069] The memory (140) stores a program for each signal processing and control within the controller (170), and can store signal-processed image, voice, or data signals.

[0070] The memory (140) may perform a function for temporary storage of video, audio, or data signals input from an external device interface (135) or a network interface (133), and may also store information about a specific image through a channel memory function.

[0071] The memory (140) can store an application or a list of applications input from an external device interface (135) or a network interface (133).

[0072] The display device (1) can play content files (video files, still image files, music files, document files, application files, etc.) stored in the memory (140) and provide them to the user.

[0073] The user input interface (150) can transmit a signal input by the user to the controller (170) or transmit a signal from the controller (170) to the user. For example, the user input interface (150) can receive and process control signals such as power on / off, channel selection, and screen setting from the remote control device (200) according to various communication methods such as Bluetooth, Ultra Wideband (WB), ZigBee, Radio Frequency (RF) communication, or infrared (IR) communication, or process control signals from the controller (170) to be transmitted to the remote control device (200).

[0074] The user input interface (150) can transmit control signals input from local keys (not shown) such as the power key, channel key, volume key, and setting value to the controller (170).

[0075] An image signal processed by the controller (170) can be input to the display (180) and displayed as an image corresponding to the image signal. An image signal processed by the controller (170) can be input to an external output device through an external device interface (135).

[0076] The voice signal processed by the controller (170) can be output as audio to the speaker (185). The voice signal processed by the controller (170) can be input to an external output device through the external device interface (135).

[0077] In addition, the controller (170) can control the overall operation within the display device (1).

[0078] The controller (170) can control the display device (1) by a user command or an internal program input through the user input interface (150), and can connect to a network to enable the user to download a desired application or application list into the display device (1).

[0079] The controller (170) enables the user-selected channel information, etc. to be output through a display (180) or speaker (185) together with processed video or audio signals.

[0080] The controller (170) allows a video signal or audio signal from an external device, for example, a camera or camcorder, input through the external device interface (135) to be output through the display (180) or speaker (185) in accordance with an external device video playback command received through the user input interface (150).

[0081] The controller (170) can control the display (180) to display an image, for example, a broadcast image input through a tuner (131), an external input image input through an external device interface (135), an image input through a network interface, or an image stored in a memory (140) can be controlled to be displayed on the display (180). In this case, the image displayed on the display (180) can be a still image or a moving image, and can be a 2D image or a 3D image.

[0082] The controller (170) can control the playback of content stored in the display device (1), received broadcast content, or external input content input from outside, and the content can be in various forms such as broadcast video, external input video, audio file, still image, connected web screen, and document file.

[0083] The wireless communication interface (173) can communicate with an external device through wired or wireless communication. The wireless communication interface (173) can perform short-range communication with the external device. To this end, the wireless communication interface (173) can support short-range communication using at least one of Bluetooth™, RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technologies.

[0084] The wireless communication interface (173) can support wireless communication between the display device (1) and a wireless communication system, between the display device (1) and another display device (1), or between the display device (1) and a network in which the display device (100, or an external server) is located via a wireless area network. The wireless area network can be a wireless personal area network.

[0085] The wireless communication interface (173) can detect (or recognize) a wearable device capable of communication around the display device (1).

[0086] If the detected wearable device is a device certified to communicate with the display device (1) according to the present invention, the controller (170) can transmit at least a portion of the data processed in the display device (1) to the wearable device via the wireless communication interface (173). Accordingly, a user of the wearable device can utilize the data processed in the display device (1) via the wearable device.

[0087] The display (180) can generate a driving signal by converting a video signal, data signal, OSD signal processed by the controller (170) or a video signal, data signal, etc. received from an external device interface (135) into R, G, and B signals, respectively.

[0088] Meanwhile, since the display device (1) illustrated in FIG. 2 is merely an embodiment of the present invention, some of the illustrated components may be integrated, added, or omitted depending on the specifications of the display device (1) actually implemented.

[0089] That is, two or more components may be combined into a single component, or a single component may be subdivided into two or more components, as needed. Furthermore, the functions performed by each block are intended to illustrate embodiments of the present invention, and their specific operations or devices do not limit the scope of the present invention.

[0090] According to another embodiment of the present invention, the display device (1) may receive and play an image through a network interface (133) or an external device interface (135) without having a tuner (131) and a demodulator (132), unlike as shown in FIG. 2.

[0091] For example, the display device (1) may be implemented separately as an image processing device, such as a set-top box, for receiving contents according to broadcast signals or various network services, and a content playback device for playing contents input from the image processing device.

[0092] In this case, the operating method of the display device according to the embodiment of the present invention to be described below may be performed by any one of the display device (1) described with reference to FIG. 2, as well as an image processing device such as the separated set-top box, or a content playback device having a display (180) and a speaker (185).

[0093] FIG. 3a is a drawing illustrating the configuration of a system according to one embodiment of the present disclosure.

[0094] Referring to FIG. 3a, the system (3) may include an electronic device (300-1) and an external device (300-2).

[0095] The electronic device (300-1) can be connected to an external device (300-2) via the Universal Serial Bus (USB) standard.

[0096] In particular, the electronic device (300-1) and the external device (300-2) can be connected via a USB A-Type port, a USB B-Type port, or a USB C-type port.

[0097] The external device (300-2) may be a device that supports USB-C DP ALT (USB-C DisplayPort ALTernate) mode. The USB-C DP ALT mode may be a mode in which the external device (300-2) transmits a video signal or audio signal to the electronic device (300-1) through a USB C-type port.

[0098] The external device (300-2) can receive power from the electronic device (300-1) in USB-C DP ALT (USB-C DisplayPort ALTernate) mode. The USB-C DP ALT (USB-C DisplayPort ALTernate) mode may be referred to as DP ALT mode.

[0099] The electronic device (300-1) can be wirelessly connected to an external device (300-2) via a short-range wireless communication standard. The short-range wireless communication standard may be either Bluetooth or Wi-Fi, but this is merely an example.

[0100] An external device (300-2) can transmit one or more of a video signal or an audio signal to the electronic device (300-1).

[0101] The electronic device (300-1) can output one or more of a video signal or audio signal received from an external device (300-2).

[0102] The external device (300-2) may be a device that outputs one or more of an audio signal or a video signal received from the electronic device (300-1).

[0103] The electronic device (300-1) may be a display device (1) illustrated in FIGS. 1A to 2. The electronic device (300-1) may include all of the components illustrated in FIGS. 1A to 2.

[0104] The external device (300-2) may be any one of a speaker, a smartphone, a notebook, a PC, a laptop, or a smart pad.

[0105] Hereinafter, the display device (1) may be referred to as an electronic device (300-1).

[0106] FIG. 3b is a drawing illustrating an example of an electronic device equipped with an external device according to one embodiment of the present disclosure.

[0107] An external device (300-2) can be mounted on a stand (31) provided on one side of a pole (30) of an electronic device (300-1).

[0108] The external device (300-2) may be a portable speaker.

[0109] An external device (300-2) can output audio based on an audio signal received from an electronic device (300-1).

[0110] FIG. 4 is a block diagram illustrating the configuration of an electronic device and an external device according to an embodiment of the present disclosure.

[0111] Referring to FIG. 4, the electronic device (300-1) may include a charging board (310), a battery (320), a short-range wireless communication interface (330), a USB port (350), a display (360), and a processor (390).

[0112] The charging board (310) can control charging or discharging of the battery (320). The charging board (310) can supply or cut off power to components of the electronic device (300-1).

[0113] The charging board (310) may include a charging circuit (311) and a DC / DC converter (313).

[0114] The charging circuit (311) can receive power from an external power supply device. The charging circuit (311) can transmit the supplied power to one or more components of the battery (320), short-range wireless communication interface (330), display (360), or processor (390).

[0115] The DC / DC converter (313) can regulate (raise or lower) the voltage received from the charging circuit (311) to a constant voltage.

[0116] The battery (320) may have a structure that is detachable from the electronic device (300-1). The battery (320) may be charged or discharged under the control of the charging board (310).

[0117] The charging board (310) may be included in the power supply circuit (190) of FIG. 2.

[0118] The short-range wireless communication interface (330) can communicate with the short-range wireless communication interface (420) of an external device (300-2) through a short-range wireless communication standard.

[0119] The short-range wireless communication interface (330) may include a Bluetooth circuit using the Bluetooth standard. The short-range wireless communication interface (330) may be included in the wireless communication interface (173) of FIG. 2.

[0120] The USB port (350) may be a port that supports any one of the USB-A type, USB-B type, or USB-C type.

[0121] The USB port (350) can be connected to the USB port (410) of an external device (300-2) via a USB cable. Power can be supplied to the external device (300-2) via the USB port (350).

[0122] The USB port (350) may be included in the external device interface (135) of FIG. 2.

[0123] The display (360) may correspond to the display (180) of FIG. 2.

[0124] The display (360) can display an image. The display (360) can be turned on in response to a power-on command and turned off in response to a power-off command.

[0125] The processor (390) can control the overall operation of the electronic device (300-1).

[0126] The electronic device (300-1) may have one or more processors (390). The processor (390) may be referred to as a main SOC (System On Chip).

[0127] The processor (390) may have the same configuration as the controller (170) of FIG. 2.

[0128] The processor (390) can determine whether a power off command is received.

[0129] When the processor (390) receives a power off command, it can turn off the screen of the display (360) and maintain its power state in a power on state.

[0130] The processor (390) can obtain the connection status between the electronic device (300-1) and the external device (300-2).

[0131] The processor (390) can determine whether the acquired connection state is a normal connection state.

[0132] The processor (390) can turn off its power if the acquired connection state is not determined to be a normal connection state.

[0133] If the acquired connection state is determined to be a normal connection state, the processor (390) can acquire the power supply mode of the electronic device (300-1) and the charging state of the external device (300-2).

[0134] The processor (390) can determine whether to charge the external device (300-2) based on the power supply mode of the electronic device (300-1) and the charging status of the external device (300-2).

[0135] The processor (390) can determine whether the power supply mode of the electronic device (300-1) is in the external power mode.

[0136] When the power supply mode of the electronic device (300-1) is determined to be an external power mode, the processor (390) can determine whether the charging rate of the external device (300-2) exceeds the first ratio.

[0137] The processor (390) may turn off the power if it is determined that the charging rate of the external device (300-2) exceeds the first rate.

[0138] If the processor (390) determines that the charging rate of the external device (300-2) is lower than the first rate, it can supply power to the external device (300-2).

[0139] Meanwhile, if the processor (390) determines that the power supply mode of the electronic device (300-1) is in battery mode, it can determine whether the charging rate of the battery (320) is less than or equal to a second rate that is less than the first rate.

[0140] Here, the second ratio could be 70%, but this is just an example.

[0141] The processor (390) can turn off the power when the charge rate of the battery (320) is below the second ratio. The processor (390) can control the charging board (310) to turn off its power when the charge rate of the battery (320) is below the second ratio.

[0142] The charging board (310), battery (320), short-range wireless communication interface (330), USB port (350), display (360), and processor (390) may be components provided in the head (10).

[0143] At least some of the charging board (310), battery (320), short-range wireless communication interface (330), USB port (350), display (360), and processor (390) may be provided on the stand (20, 30, 40, 50).

[0144] The external device (300-2) may include a USB port (410), a short-range wireless communication interface (420), a power circuit (430), a built-in battery (450), and a microcomputer (micro-computer, micom, 490).

[0145] The USB port (410) may be a port that supports USB-A type, USB-B type, or USB-C type.

[0146] The short-range wireless communication interface (420) may include a short-range wireless communication circuit. For example, the short-range wireless communication circuit may include a Bluetooth circuit.

[0147] The power circuit (430) can charge the built-in battery (450) through power received from the electronic device (300-1).

[0148] The built-in battery (450) can be charged or discharged by the power circuit (430).

[0149] The microcomputer (490) can control the overall operation of the external device (300-2).

[0150] FIG. 5 is a flowchart for explaining an operating method of an electronic device according to an embodiment of the present disclosure.

[0151] Referring to FIG. 5, the processor (390) of the electronic device (300-1) can determine whether a power-off command is received (S501).

[0152] The processor (390) can receive a power control command from the remote control device (200). The power control command can be either a power on command or a power off command.

[0153] The processor (390) can receive a power control command from a remote control device (200) via a user input interface (150).

[0154] The power off command may be a command to turn off the power of the electronic device (300-1).

[0155] When the processor (390) of the electronic device (300-1) receives a power-off command, it can turn off the screen of the display (360) and maintain its power state in a power-on state (S505).

[0156] The processor (390) may maintain its power on even when receiving a power off command to determine whether to charge the external device (300-2). Alternatively, the processor (390) may turn off the screen of the display (360) by cutting off power supplied to the display (360).

[0157] After that, the processor (390) of the electronic device (300-1) can obtain the connection status between the electronic device (300-1) and the external device (300-2) (S507).

[0158] In one embodiment, the connection state between the electronic device (300-1) and the external device (300-2) may include at least one of a wired connection state and a wireless connection state.

[0159] The wired connection state may be a state in which the electronic device (300-1) and the external device (300-2) are connected via the USB standard.

[0160] The wireless connection state may be a state of connection between an electronic device (300-1) and an external device (300-2) via a short-range wireless communication standard. Here, the short-range wireless communication standard may be the Bluetooth standard, but this is merely an example.

[0161] The processor (390) of the electronic device (300-1) can determine whether the acquired connection state is a normal connection state (S509).

[0162] In one embodiment, a normal connection state may be a state in which the electronic device (300-1) and the external device (300-2) are connected through a USB standard, and a state in which the electronic device (300-1) and the external device (300-2) are connected through a short-range wireless communication standard.

[0163] In one embodiment, the processor (390) can determine the connection status as a normal connection status when the electronic device (300-1) and the external device (300-2) are connected through a USB standard and when the electronic device (300-1) and the external device (300-2) are connected through a short-range wireless communication standard.

[0164] In another embodiment, the processor (390) may determine the connection status as a normal connection status when Bluetooth pairing is established between an external device (300-2) and an electronic device (300-1), the external device (300-2) is a device that supports Bluetooth communication, and the external device (300-2) and the electronic device (300-1) are connected via a USB cable.

[0165] The processor (390) of the electronic device (300-1) can turn off its power if the acquired connection state is not determined to be a normal connection state (S511).

[0166] The processor (390) can turn off its power if the connection state between the electronic device (300-1) and the external device (300-2) does not satisfy either a wired connection state or a wireless connection state.

[0167] For example, the processor (390) can turn off its own power if it is not connected via the USB standard between the electronic device (300-1) and the external device (300-2).

[0168] As another example, the processor (390) may turn off its power if it is not connected via the Bluetooth communication standard between the electronic device (300-1) and the external device (300-2).

[0169] If the acquired connection state is determined to be a normal connection state, the processor (390) of the electronic device (300-1) can acquire the power supply mode of the electronic device (300-1) and the charging state of the external device (300-2) (S513).

[0170] The power supply mode of the electronic device (300-1) may be either an external power mode or a battery mode.

[0171] The external power mode may be a mode in which the electronic device (300-1) supplies power to components of the electronic device (300-1) through power supplied from an external power supply device. The external power supply device may be either a DC adapter that converts AC power into DC power or a USB Power Delivery (PD) adapter.

[0172] Battery mode may be a mode in which power is supplied to components of the electronic device (300-1) through a battery (320) provided in the electronic device (300-1).

[0173] The charging board (310) can transmit a detection signal for power supplied from an external power supply device to the processor (390). The detection signal can be either a high signal or a low signal. When the charging board (310) receives power from the external power supply device, it can output a high signal, and when it does not receive power from the external power supply device, it can output a low signal. For example, the charging board (310) can output a high signal when the input voltage is equal to or higher than a preset voltage, and can output a high signal when the input voltage is lower than the preset voltage.

[0174] The processor (390) can determine that the power supply mode is in the external power mode when the detection signal received from the charging board (310) is a high signal.

[0175] The processor (390) can determine that the power supply mode is in battery mode when the detection signal received from the charging board (310) is a low signal.

[0176] The charging status of the external device (300-2) may indicate the charging status or charging rate of the built-in battery (450) provided in the external device (300-2).

[0177] The processor (390) can request the charging rate of the built-in battery (450) from an external device (300-2) through a short-range wireless communication interface (330), and can receive information about the charging rate of the built-in battery (450) from the external device (300-2).

[0178] The charging rate of the built-in battery (450) of the external device (300-2) may be referred to as the charging rate of the external device (300-2).

[0179] The processor (390) of the electronic device (300-1) can determine whether to charge the external device (300-2) based on the power supply mode of the electronic device (300-1) and the charging status of the external device (300-2) (S515).

[0180] The processor (390) may not charge the external device (300-2) when the power supply mode of the electronic device (300-1) is an external power mode and the charging rate of the external device (300-2) exceeds the first rate.

[0181] The processor (390) can charge the external device (300-2) when the power supply mode of the electronic device (300-1) is an external power mode and the charging rate of the external device (300-2) is less than or equal to the first rate.

[0182] When the power supply mode of the electronic device (300-1) is battery mode, the processor (390) can determine whether to charge the external device (300-2) based on the charging rate of the battery (320).

[0183] The processor (390) may not charge the external device (300-2) when the power supply mode of the electronic device (300-1) is battery mode and the charging rate of the battery (320) is lower than or equal to a second rate that is lower than the first rate.

[0184] The processor (390) can charge the external device (300-2) when the power supply mode of the electronic device (300-1) is battery mode and the charging rate of the battery (320) exceeds the second rate.

[0185] Step S515 is described in more detail below.

[0186] FIG. 6 is a flowchart illustrating a process for determining whether to charge an external device based on the power supply mode of the electronic device of the present disclosure and the charging status of the external device.

[0187] FIG. 6 is performed after step S509 of FIG. 5 and may be an example of concretizing S513.

[0188] Referring to FIG. 6, the processor (390) can determine whether the power supply mode of the electronic device (300-1) is in the external power mode (S601).

[0189] The processor (390) can obtain the power supply mode of the electronic device (300-1) based on the detection signal received from the charging board (310).

[0190] When the power supply mode of the electronic device (300-1) is determined to be an external power mode, the processor (390) can determine whether the charging rate of the external device (300-2) exceeds the first ratio (S603).

[0191] The charge rate of the external device (300-2) may range from 0 to 100%. The first rate may be 90%, but this is merely an example.

[0192] The processor (390) can receive information on the charging rate of the built-in battery (450) from an external device (300-2) via the Bluetooth communication standard. The processor (390) can periodically receive information on the charging rate of the built-in battery (450) from an external device (300-2) via the Bluetooth communication standard.

[0193] The processor (390) can periodically check the charge level of the built-in battery (450). For example, the processor (390) can check the charge level of the external device (300-2) every three minutes.

[0194] If the processor (390) determines that the charging rate of the external device (300-2) exceeds the first rate, it can turn off the power (S605).

[0195] The processor (390) may turn off its own power if it determines that the charging rate of the external device (300-2) exceeds the first rate. That is, the processor (390) may turn off the power of the electronic device (300-1) if it determines that charging of the external device (300-2) is unnecessary.

[0196] If the processor (390) determines that the charging rate of the external device (300-2) is lower than the first rate, it can supply power to the external device (300-2) (S607).

[0197] The processor (390) can control the charging board (310) so that power received from the external power supply device is supplied to the external device (300-2) when the charging rate of the external device (300-2) is lower than the first rate.

[0198] The DC / DC converter (313) of the charging board (310) can regulate the voltage transmitted from the charging circuit (311) to a constant voltage, and can transmit the regulated constant voltage to the USB port (410) of the external device (300-2) through the USB port (350). Here, the constant voltage may be a voltage of 5 V provided through the V-BUS.

[0199] The processor (390) can stop charging the built-in battery (450) when charging of the built-in battery (450) is completed. The processor (390) can receive a charging completion signal indicating the completion of charging of the built-in battery (450) from the external device (300-2), and can control the charging board (310) to stop charging of the external device (300-2) according to the received charging completion signal.

[0200] Meanwhile, if the processor (390) determines that the power supply mode of the electronic device (300-1) is in battery mode, it can determine whether the charging rate of the battery (320) is less than or equal to a second rate that is less than the first rate (S609).

[0201] Here, the second ratio could be 70%, but this is just an example.

[0202] The processor (390) can turn off the power when the charge rate of the battery (320) is lower than the second rate (S611).

[0203] When the charge rate of the battery (320) is below the second rate, the processor (390) may turn off the power of the electronic device (300-1) to reserve power for later operation of the electronic device (300-1). That is, the processor (390) may not supply power to the external device (300-2).

[0204] In this way, according to an embodiment of the present disclosure, even after the screen of the display (360) is turned off in response to a power-off command, the external device (300-2) can be charged according to the charging rate of the external device (300-2).

[0205] Accordingly, the display screen does not need to be turned on to charge an external device, and thus the screen may not be turned on even when the user does not need to use the display screen. This can eliminate inconvenience in using the electronic device (300-1).

[0206] Additionally, even if a power-off command is given, charging of the external device (300-2) can occur, thereby increasing the usage time of the external device (300-2). This can significantly improve the user experience.

[0207] FIG. 7a and FIG. 7b are drawings explaining the charging process of an external device when the screen of a display is turned on and off according to the prior art.

[0208] Hereinafter, it is assumed that the electronic device (700-1) and the external device (700-2) are connected by wire through the USB standard and are connected wirelessly through the Bluetooth communication standard.

[0209] Referring to FIG. 7a, when the screen of the display (710) is turned on, the electronic device (700-1) can supply 5V power to the USB port (730) of the external device (700-2) through the USB port (720).

[0210] Referring to FIG. 7b, when the screen of the display (710) is turned off, the electronic device (700-1) does not supply power to the external device (700-2) through the USB port (720). That is, in this case, the external device (700-2) is not charged.

[0211] FIG. 8 is a drawing illustrating a process of charging an external device when the screen of a display is turned off according to an embodiment of the present disclosure.

[0212] The electronic device (300-1) and the external device (300-2) may be connected by wire through the USB standard and may be connected wirelessly through the Bluetooth communication standard.

[0213] The electronic device (300-1) can turn off the screen of the display (180) upon receiving a power-off command.

[0214] The electronic device (300-1) can obtain the charging rate of the external device (300-2) and determine whether the charging rate of the external device (300-2) is less than the first rate.

[0215] The electronic device (300-1) can charge the external device (300-2) when the charging rate of the external device (300-2) is less than the first rate and the charging rate of the battery (320) of the electronic device (300-1) exceeds the second rate.

[0216] The electronic device (300-1) can supply a voltage of 5 V to the USB port (410) of the external device (300-2) through the USB port (350).

[0217] In this way, according to an embodiment of the present disclosure, an external device (300-2) can be charged even when the screen of the electronic device (300-1) is turned off.

[0218] The applicability of the embodiments of the present disclosure can be confirmed through the following process.

[0219] 1. The user turns off the power of the electronic device (300-1) while the external device (300-2) is connected to the electronic device (300-1).

[0220] 2. The screen also turns off when the electronic device (300-1) is turned off.

[0221] 3. If the electronic device (300-2) connected via USB and Bluetooth is being charged while the screen of the electronic device (300-1) is turned off, it can be determined that the embodiment of the present disclosure has been applied.

[0222] 4. More specifically, if the screen of the electronic device (300-1) is turned off, the charging rate of the built-in battery (450) is below the first rate, and the charging rate of the battery (320) exceeds the second rate, and the built-in battery (450) is being charged, it can be determined that the embodiment of the present disclosure has been applied.

[0223] An electronic device according to one embodiment of the present disclosure may include an electronic device (300-1) including a battery (320); a short-range wireless communication interface (330) for communicating with an external device (300-2) via a short-range wireless communication standard; an external device interface (135) having a USB (Universal Serial Bus) port (350); and a processor (390) for receiving a power-off command of the electronic device, receiving a charging status of the external device from the external device via the short-range wireless communication interface according to the received power-off command, and determining whether to charge the external device based on the charging status of the external device.

[0224] The processor (390) can charge the external device through the USB port (350) when the charging rate of the external device is lower than or equal to a first ratio, and can turn off its power when the charging rate of the external device exceeds the first ratio.

[0225] The processor (390) can transmit power supplied from the external power supply device to the external device when the charging rate of the external device is lower than or equal to the first ratio and an external power supply device is connected.

[0226] The processor (390) can determine whether to charge the external device based on the charging status of the external device and the charging status of the battery.

[0227] The processor (390) can charge the external device when the charging rate of the external device is less than or equal to a first rate and the charging rate of the battery exceeds a second rate that is less than the first rate.

[0228] The processor (390) may turn off its own power when the charging rate of the external device is lower than or equal to the first ratio, the charging rate of the battery is lower than or equal to the second ratio, or when the charging rate of the external device exceeds the first ratio.

[0229] The electronic device (300-1) may further include a display (360), and the processor (390) may turn off the screen of the display according to the power off command.

[0230] The above processor (390) can periodically receive the charging status of the external device from the external device through the short-range wireless communication interface (330).

[0231] The processor (390) may stop charging the external device when charging of the external device is completed based on the charging status of the external device.

[0232] The above short-range wireless communication interface (390) may include a Bluetooth circuit that supports the Bluetooth communication standard.

[0233] The power supply mode of the electronic device (300-1) may be either an external power mode that supplies power to the external device through an external power supply device or a mode that supplies power to the external device through the battery.

[0234] The above processor (390) can charge the external device with power supplied through the external power supply device when the power supply mode is the external power mode and the charging rate of the external device is less than or equal to the first rate.

[0235] The processor (390) can charge the external device using power charged in the battery when the power supply mode is the battery mode, the charging rate of the external device is less than or equal to a first rate, and the charging rate of the battery exceeds a second rate that is less than the first rate.

[0236] An electronic device (300-1) according to one embodiment of the present disclosure includes a stand (20, 30, 40, 50); and a head (10) supported by the stand, wherein the head (10) may include a battery (310), a short-range wireless communication interface (330) for communicating with an external device through a short-range wireless communication standard, an external device interface (135) having a USB (Universal Serial Bus) port (350), and a processor (390) for receiving a charging state of the external device from the external device through the short-range wireless communication interface when a power-off command of the electronic device is received, and determining whether to charge the external device based on the charging state of the external device.

[0237] According to one embodiment of the present disclosure, the above-described method can be implemented as processor-readable code on a medium in which a program is recorded. Examples of processor-readable media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage devices.

[0238] The display device described above is not limited to the configuration and method of the embodiments described above, and the embodiments may be configured by selectively combining all or part of each embodiment so that various modifications can be made.

Claims

1. In electronic devices, battery; A short-range wireless communication interface that communicates with external devices via short-range wireless communication standards; An external device interface having a USB (Universal Serial Bus) port; and A processor including a processor configured to receive a power-off command of the electronic device, receive a charging status of the external device from the external device through the short-range wireless communication interface according to the received power-off command, and determine whether to charge the external device based on the charging status of the external device. Electronic devices.

2. In paragraph 1, The above processor If the charging rate of the external device is lower than the first rate, the external device is charged through the USB port. If the charging rate of the above external device exceeds the first rate, it turns off its power. Electronic devices.

3. In paragraph 2, The above processor When the charging rate of the external device is lower than or equal to the first ratio and an external power supply device is connected, power supplied from the external power supply device is transmitted to the external device. Electronic devices.

4. In paragraph 1, The above processor Determining whether to charge the external device based on the charging status of the external device and the charging status of the battery Electronic devices.

5. In paragraph 4, The above processor When the charging rate of the external device is less than or equal to the first rate and the charging rate of the battery exceeds a second rate that is less than the first rate, the external device is charged. Electronic devices.

6. In paragraph 5, The above processor When the charging rate of the external device is lower than or equal to the first ratio and the charging rate of the battery is lower than or equal to the second ratio, or when the charging rate of the external device exceeds the first ratio, it turns off its power. Electronic devices.

7. In paragraph 1, Including more displays, The above processor Turn off the screen of the display according to the above power off command. Electronic devices.

8. In paragraph 1, The above processor Periodically receiving the charging status of the external device from the external device through the short-range wireless communication interface. Electronic devices.

9. In paragraph 3, The above processor When charging of the external device is completed based on the charging status of the external device, charging of the external device is stopped. Electronic devices.

10. In paragraph 1, The above short-range wireless communication interface Includes a Bluetooth circuit that supports the Bluetooth communication standard. Electronic devices.

11. In paragraph 1, The power supply mode of the above electronic device is Either an external power mode that supplies power to the external device through an external power supply device or a mode that supplies power to the external device through the battery. Electronic devices.

12. In paragraph 11, The above processor If the power supply mode is the external power mode and the charging rate of the external device is less than or equal to the first rate, the external device is charged with power supplied through the external power supply device. Electronic devices.

13. In paragraph 11, The above processor When the power supply mode is the battery mode, the charging rate of the external device is less than or equal to a first rate, and the charging rate of the battery exceeds a second rate that is less than the first rate, the external device is charged through the power charged in the battery. Electronic devices.

14. In electronic devices, stand; and including a head supported by the above stand, The above head battery, A short-range wireless communication interface that communicates with external devices through short-range wireless communication standards. External device interface with USB (Universal Serial Bus) port and When a power-off command of the electronic device is received, a processor is included that receives the charging status of the external device from the external device through the short-range wireless communication interface and determines whether to charge the external device based on the charging status of the external device. Electronic devices.

15. A method of operating an electronic device including a battery, a short-range wireless communication interface for communicating with an external device through a short-range wireless communication standard, and an external device interface having a USB (Universal Serial Bus) port, A step of receiving a power-off command of an electronic device; A step of receiving a charging status of the external device from the external device through the short-range wireless communication interface according to a received power-off command; and A step of determining whether to charge the external device based on the charging status of the external device. How electronic devices work.

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