Abstract: An operating method of a wireless communication device, the method including generating an IQ compensation value by performing IQ mismatch compensation on a first input signal using a linearity calibration model, the linearity calibration model being based on a neural network, generating a pre-distortion value by performing pre-distortion on the first input signal using the linearity calibration model, generating a first calibration signal based on the IQ compensation value and the pre-distortion value, generating a calibrated first output signal by amplifying the first calibration signal based on an amplification coefficient, and training the linearity calibration model based on the first input signal and the calibrated first output signal.

Abstract: An embodiment server includes a communicator and a processor configured to receive image data from a personal mobility through the communicator, determine movement direction information including departure area information of the personal mobility and arrival area information of the personal mobility based on the image data, predict a demand level for the personal mobility for each area based on the movement direction information, and set a service area of the personal mobility based on the demand level.

Abstract: The vehicle includes a display, a dial input device configured to receive a first input from a user, and a controller configured to control the display based on the first input, wherein the controller is configured to control the display to display a plurality of characters, a first indicator indicating one character among the plurality of characters, and a second indicator indicating at least one character not indicated by the first indicator among the plurality of characters, controls the display to change the characters indicated by the first indicator and the second indicator based on the first input, and determines the character indicated by the first indicator as the character selected by the user based on the second input.

Abstract: A server, a personal mobility communicating with the server and a vehicle are provided. The server includes a transceiver that communicates with vehicles and a plurality of personal mobility. A controller sets a geo-fence area based on a size information of the vehicles and a size information of the plurality of personal mobility during cluster driving. The controller determines driving positions of the vehicles as primary in the set geo-fence area based on the size information of the vehicles, determines driving positions of the plurality of personal mobility as secondary in the set geo-fence area based on the size information of the plurality of personal mobility and adjusts layout information for the driving positions determined as the primary and the secondary to be transmitted to the vehicles and the plurality of personal mobility.

Abstract: A heat exchanger may include a plurality of refrigerant tubes through which a refrigerant flows and a plurality of fins disposed between adjacent refrigerant tubes of the plurality of refrigerant tubes to transfer heat. Each of the plurality of fins may include an inner portion located to overlap the plurality of refrigerant tubes in a vertical direction, and an outer portion located so as not to overlap the plurality of refrigerant tubes in the vertical direction, and a lower end of at least a portion of the outer portion may be located higher than a lower end of the inner portion.

Abstract: A vehicle includes at least one holder, a communication interface configured to communicate with a user terminal, a user interface device configured to visualize and output vehicle operating information, and a controller configured to, in response to the user terminal being mounted on the at least one holder, identify a position of the user terminal, determine auxiliary information to be displayed on the user terminal from the vehicle operating information based on the position of the user terminal, and control the communication interface to transmit the auxiliary information to the user terminal.

Abstract: A heat exchanger includes a plurality of refrigerant tubes configured to allow a refrigerant to flow, and a fin disposed between the adjacent refrigerant tubes, the fin being configured to transfer heat, the fin includes a plurality of first bodies, a plurality of second bodies, each second body being arranged between adjacent first bodies, a plurality of upper bodies, each upper body connecting an upper end of each first body and an upper end of each second body adjacent to each other, and a plurality of lower bodies, each lower body connecting a lower end of each first body and a lower end of each second body adjacent to each other, wherein a distance between each first body and each second body connected to both ends of one lower body of the plurality of lower bodies decreases as it approaches one upper body of the plurality of upper bodies.

Abstract: A server includes a communicator and a server controller is configured to determine a personal mobility group for cluster driving based on position information and destination information of a plurality of personal mobilities received from the communicator. The server controller determines a master personal mobility among the personal mobility group, and operates the communicator to transmit a control command for determining at least one slave personal mobility following the first master personal mobility to the personal mobility group.

Abstract: An intermediate system may include: a communication module configured to communicate with a ride-offering system and a delivery system; and at least one processor configured to perform matching on a ride request transmitted to the ride-offering system and a delivery request transmitted to the delivery system, wherein, in response to a delivery request matching the ride request being existent, the at least one processor is configured to change at least one of an origin or a destination of a ride-offering service corresponding to the ride request based on the matching delivery request.

Abstract: An embodiment dialogue system includes a speech recognizer configured to convert an utterance of a user into an utterance text, a natural language understanding module configured to identify an intention of the user based on the utterance text, and a controller configured to generate a first control signal for performing control corresponding to the intention of the user, identify whether an additional control item related to the control corresponding to the intention of the user exists, and in response to the additional control item existing, generate a second control signal for displaying information about the additional control item on a display.

Abstract: An ionic wind generator and an electronic device having a heat dissipation function using the same are proposed. The ionic wind generator includes a power module; a first electrode configured to receive power from the power module by being connected to the power module to become an emitter electrode; and a second electrode spaced apart from the first electrode and grounded and at the same time connected to the power module to become a counter electrode. In addition, the first electrode is configured as a carbon brush including multiple carbon fibers. Accordingly, in the ionic wind generator, the emitter electrode is configured as the carbon brush having multiple carbon fibers.

Abstract: A dialogue management method, a dialogue management system and a non-transitory computer-readable recording medium may obtain, from a screen displayed via a user terminal, information required for executing a task corresponding to a user's speech input, and omit operations of inducing, receiving, and analyzing additional user's speech inputs.

Abstract: Provided is an electrostatic dust filter including a frame that is opened back and forth and forms a space through which air passes, a chemical absorbent that is accommodated in the space and absorbs harmful substance in the air, a mesh member that covers the front of the frame and has a plurality of pores through which the air passes, a ground electrode that covers the rear of the frame and has the plurality of pores through which the air passes, and is grounded, and a voltage electrode that is disposed to opposite to the ground electrode with respect to the mesh member and applied with a high voltage.

Abstract: A speech recognition system includes: a speech processor configured to identify an intention of a user included in an utterance of the user; a controller configured to identify whether a function corresponding to the intention of the utterance is performable, and if the function corresponding to the intention of the utterance is not performable, generate spoken text for requesting an other speech recognition system to perform the function corresponding to the intention of the user; and an utterance generator configured to convert the spoken text into a speech signal of an inaudible frequency band.

Abstract: A heat exchanger is provided that may include a plurality of refrigerant tubes through which refrigerant flows, a fin disposed between adjacent refrigerant tubes to conduct heat, and a sacrificial sheet provided between a refrigerant tube of the plurality of refrigerant tubes and the fin and configured such that a first surface thereof contacts the refrigerant tube and a second surface thereof contacts the fin. A corrosion potential of the sacrificial sheet may be lower than a corrosion potential of the refrigerant tube.

Abstract: An apparatus for generating an emoji includes an analyzer that is configured to, in response to an utterance of a user being input, acquire at least one of context information or information about a sentiment of the user. AN emoji generator generates a new emoji based on emoji generation information including information related to at least two among the context information, the information about the sentiment of the user, and information about an intent of the user corresponding to the utterance. The emoji generator is configured to select a plurality of emojis that match the emoji generation information from among a plurality of stored emojis and combine at least some of the plurality of emojis to generate the new emoji.

Abstract: A server includes a communicator and a controller configured to acquire battery status information of each of a plurality of batteries through the communicator, acquire target device information from a user terminal through the communicator, determine a battery from the plurality of batteries having a lifespan corresponding to a required output of a target device among the plurality of batteries as a recommended battery based on the battery status information and the target device information, and control the communicator to transmit information on the recommended battery to the user terminal.

Abstract: A semiconductor device is provided.

Abstract: A server, a personal mobility communicating with the server and a vehicle are provided. The server includes a transceiver that communicates with vehicles and a plurality of personal mobility. A controller sets a geo-fence area based on a size information of the vehicles and a size information of the plurality of personal mobility during cluster driving. The controller determines driving positions of the vehicles as primary in the set geo-fence area based on the size information of the vehicles, determines driving positions of the plurality of personal mobility as secondary in the set geo-fence area based on the size information of the plurality of personal mobility and adjusts layout information for the driving positions determined as the primary and the secondary to be transmitted to the vehicles and the plurality of personal mobility.

Abstract: A personal mobility device includes a helmet, for example, when renting the personal mobility device, and can improve user safety based on an output of a sensor provided in the helmet. The personal mobility device further includes: a transceiver; a helmet storage device in which the helmet provided with at least one sensor is stored; and a controller configured to control the transceiver to be wirelessly connected to the helmet when receiving a signal indicating separation between the helmet storage device and the helmet from the helmet storage device, and to control the transceiver to transmit a signal requesting the activation of the at least one sensor to the helmet.