Abstract: Provided are a charging/discharging apparatus, an operation method of the charging/discharging apparatus, and a display apparatus including the charging/discharging apparatus. The charging/discharging apparatus includes a charging unit comprising circuitry configured to charge a battery pack, and a direct current (DC)-DC converter configured to convert a battery voltage of the battery pack into a voltage for operating the display apparatus, wherein, in a first mode based on an alternating current (AC) power source being applied to the display apparatus, the charging/discharging apparatus charges the battery pack with a battery voltage less than a secondary voltage generated by the display apparatus from the AC power source through the charging unit, and in a second mode based on the AC power source not being applied to the display apparatus, the charging/discharging apparatus delivers the battery voltage of the battery pack to the display apparatus.

Abstract: An electronic device is provided. The electronic device includes a housing including a conductive area forming an exterior of the electronic device, and an antenna structure positioned in the inner space of the housing, the antenna structure including a printed circuit board including a first surface facing at least one opening formed in the conductive area in correspondence to the antenna structure, and a second surface facing the direction opposite to the first surface, and at least one antenna element positioned on the first surface or positioned inside the printed circuit board so as to be closer to the first surface than to the second surface, wherein the conductive area includes at least one slit extending from the at least one opening.

Abstract: A battery system includes: a charging circuit comprising a bidirectional charger and a main processor; and a plurality of battery packs, wherein each of the plurality of battery packs comprises a battery cell and a battery processor, wherein the main processor is configured to transmit, by using the bidirectional charger, to the battery processor of each of the plurality of battery packs, a charging signal to charge the battery cell of each of the plurality of battery packs, wherein the battery processor is configured to: based on receiving the charging signal, sequentially perform constant current (CC) charging of each of the plurality of battery packs according to a predefined order, and based on the CC charging of the plurality of battery packs being completed, simultaneously perform constant voltage (CV) charging of each of the plurality of battery packs.

Abstract: According to various embodiments, an electronic device may include an application processor including a first embedded universal serial bus (eUSB) device for performing an eUSB function, and a processor for controlling the first eUSB device. The electronic device may further include a repeater configured to be electrically connectable between the first eUSB device and an external device. The processor is configured to monitor to detect a connection of the external device to the electronic device. The processor is further configured to identify a mode related to an operation speed of the external device. The processor is further configured to control a signal to be transmitted or received in a high speed (HS) mode between the first eUSB device and the repeater, based on the identification that the mode is a full speed (FS) mode or a low speed (LS) mode. Various other embodiments may be provided.

Abstract: Provided are an optical device and a method of manufacturing the optical device including a lower electrode; an insulating layer provided on the lower electrode; upper electrodes provided on the insulating layer; and variable conductivity patterns provided to be adjacent to the upper electrodes, respectively, on the insulating layer. The upper electrodes include first and second electrodes that are alternately provided, a pitch between the first electrodes is identical to a pitch between the second electrodes, the second electrode is provided between the adjacent first electrodes, a distance between one of the adjacent first electrodes and the second electrode is a first length, a distance between another one of the adjacent first electrodes and the second electrode is a second length, and the second length differs from the first length.

Abstract: A device and a method for power management of an electronic device are provided. The electronic device includes a battery, at least one internal circuit, a universal serial bus (USB) connector, and at least one processor operably connected to the at least one internal circuit and the USB connector, wherein the at least one processor can supply power to an external electronic device connected through the USB connector, identify the input voltage of the at least one internal circuit, determine whether to change a power supply method based on the identified input voltage if the identified input voltage is less than or equal to a reference voltage, and change the power supply method of the external electronic device if the power supply method is determined to be changed.

Abstract: According to various embodiments, an electronic device may include an application processor including a first embedded universal serial bus (eUSB) device for performing an eUSB function, and a processor for controlling the first eUSB device. The electronic device may further include a repeater configured to be electrically connectable between the first eUSB device and an external device. The processor is configured to monitor to detect a connection of the external device to the electronic device. The processor is further configured to identify a mode related to an operation speed of the external device. The processor is further configured to control a signal to be transmitted or received in a high speed (HS) mode between the first eUSB device and the repeater, based on the identification that the mode is a full speed (FS) mode or a low speed (LS) mode. Various other embodiments may be provided.

Abstract: A device and a method for power management of an electronic device are provided. The electronic device includes a battery, at least one internal circuit, a universal serial bus (USB) connector, and at least one processor operably connected to the at least one internal circuit and the USB connector, wherein the at least one processor can supply power to an external electronic device connected through the USB connector, identify the input voltage of the at least one internal circuit, determine whether to change a power supply method based on the identified input voltage if the identified input voltage is less than or equal to a reference voltage, and change the power supply method of the external electronic device if the power supply method is determined to be changed.

Abstract: An example circuit board includes a plurality of dielectric layers having a plurality of pattern holes; and a plurality of transmission lines formed in the plurality of dielectric layers, and coupled according to the plurality of pattern holes so as to form a plurality of patterns, wherein, when a current is applied to each of the plurality of transmission lines, magnetic flux can be generated in the plurality of patterns.

Abstract: An example circuit board includes a plurality of dielectric layers having a plurality of pattern holes; and a plurality of transmission lines formed in the plurality of dielectric layers, and coupled according to the plurality of pattern holes so as to form a plurality of patterns, wherein, when a current is applied to each of the plurality of transmission lines, magnetic flux can be generated in the plurality of patterns.

Abstract: Provided are an optical device and a method of manufacturing the optical device including a lower electrode; an insulating layer provided on the lower electrode; upper electrodes provided on the insulating layer; and variable conductivity patterns provided to be adjacent to the upper electrodes, respectively, on the insulating layer. The upper electrodes include first and second electrodes that are alternately provided, a pitch between the first electrodes is identical to a pitch between the second electrodes, the second electrode is provided between the adjacent first electrodes, a distance between one of the adjacent first electrodes and the second electrode is a first length, a distance between another one of the adjacent first electrodes and the second electrode is a second length, and the second length differs from the first length.

Abstract: An electronic device includes a connector for connection to an external device; a controller electrically connected to a first external device detection terminal of the connector to detect an electric state of the first external device detection terminal and to output a signal corresponding to the detected electric state; a processor having a first input terminal electrically connected to the controller, that is configured to receive the signal through the first input terminal, having a second input terminal electrically connected to a second external device detection terminal of the connector, and that is configured to detect an electric state of the second external device detection terminal; and an electronic component disposed between the second external device detection terminal and the processor such that an overvoltage is not entered into the processor through the second input terminal. Various example embodiments are available.

Abstract: An electronic device is provided. The electronic device may include a microphone, a communication module comprising communication circuitry configured to be connected to one or more external electronic devices, and a processor.

Abstract: An electronic device and method of communication using a USB interface through full duplex transmission are disclosed. A method of performing data communication by an electronic device includes detecting a connection of an electronic device through an interface, configuring the electronic device as a host or a slave for data communication of first data in response to the connection of the electronic device, performing first data communication based on a first communication path according to a first standard for the first data in response to detecting the configuration, detecting performance of data communication of second data while the data communication of the first data is performed, configuring the electronic device as the host or the slave for the data communication of the second data and performing second data communication based on a second communication path according to a second standard for the second data in response to the configuration.

Abstract: A pen input device having malfunction prevention function and method of preventing malfunction thereof are disclosed. The pen input device includes: a housing having a bar form and having one end relatively narrowly opened to form a housing space; a resonant circuit housed within the housing; a tip that protrudes from an open end of the housing to the outside, the tip comprising a dielectric material and being configured to be movable within a predetermined range in a direction of a longitudinal axis of the housing, the tip being further configured to be self-centering; and a ground shielding portion formed in a portion of the housing in which electromagnetic induction occurs, the ground shielding portion not including the tip.

Abstract: An electronic device includes: a power source unit including power supply circuitry configured to supply power and a signal corresponding to the power; a power management unit including power management circuitry configured to receive the power from the power source unit to supply the power to the electronic device; a controller configured to be activated when receiving the power from the power management unit to supply a signal corresponding to the power to the power management unit; and a plurality of submersion recognition patterns connected between the power source unit and the power management unit and between the power management unit and the controller, the plurality of submersion recognition patterns configured to recognize submersion of the electronic device, wherein the electronic device is shut down when at least one of the plurality of submersion recognition patterns recognizes submersion, and the electronic device is configured to maintain shutdown when submersion is recognized, even if a request

Abstract: The present invention relates to a cooling fan including a cooling device that directly transfers heat from a heat source to a rotating fan blade and implements direct cooling by a convective contact between a surface of a rotating fan blade and air in the atmosphere, without fixed heat dissipating fins. The present invention relates to a cooling fan using a surface cooling effect for a rotating fan blade part, including: a heat source part; a heat dissipating plate part installed on the heat source part; a coolant circulating pipe part for moving a coolant in a heat dissipating plate when the heat dissipating plate part uses the coolant to dissipate heat; a rotating fan blade part configured at a position at which the coolant flows in order to forcibly cool the coolant; and a driving part for rotating the rotating fan blade part.

Abstract: An electronic device includes a connector for connection to an external device; a controller electrically connected to a first external device detection terminal of the connector to detect an electric state of the first external device detection terminal and to output a signal corresponding to the detected electric state; a processor having a first input terminal electrically connected to the controller, that is configured to receive the signal through the first input terminal, having a second input terminal electrically connected to a second external device detection terminal of the connector, and that is configured to detect an electric state of the second external device detection terminal; and an electronic component disposed between the second external device detection terminal and the processor such that an overvoltage is not entered into the processor through the second input terminal. Various example embodiments are available.

Abstract: An electronic device includes: a power source unit including power supply circuitry configured to supply power and a signal corresponding to the power; a power management unit including power management circuitry configured to receive the power from the power source unit to supply the power to the electronic device; a controller configured to be activated when receiving the power from the power management unit to supply a signal corresponding to the power to the power management unit; and a plurality of submersion recognition patterns connected between the power source unit and the power management unit and between the power management unit and the controller, the plurality of submersion recognition patterns configured to recognize submersion of the electronic device, wherein the electronic device is shut down when at least one of the plurality of submersion recognition patterns recognizes submersion, and the electronic device is configured to maintain shutdown when submersion is recognized, even if a request

Abstract: A pen input device having malfunction prevention function and method of preventing malfunction thereof are disclosed. The pen input device includes: a housing having a bar form and having one end relatively narrowly opened to form a housing space; a resonant circuit housed within the housing; a tip that protrudes from an open end of the housing to the outside, the tip comprising a dielectric material and being configured to be movable within a predetermined range in a direction of a longitudinal axis of the housing, the tip being further configured to be self-centering; and a ground shielding portion formed in a portion of the housing in which electromagnetic induction occurs, the ground shielding portion not including the tip.