Abstract: Provided is a switch having a structure having an excellent isolation characteristic even without a limiter in an ultrahigh frequency hand used for a military component. A switch according to an embodiment of the present invention comprises: multiple transistors which are connected in parallel to a path from an input terminal toward an output terminal and perform switching; and a first transmission line provided between the input terminal and a node on a path to which a first transistor is connected. By the present invention, switching can be performed in an ultrahigh frequency such as W-band while a GaN transistor is used, an insertion loss is low, an isolation characteristic is excellent, and eventually efficiency of an ultrahigh frequency circuit can be further enhanced.

Abstract: An apparatus for providing content includes a communication device that communicates with user equipment (UE) and a processor connected with the communication device. The processor analyzes a music database (DB) by interworking with the UE, extracts a driver emotion model based on the result of analyzing the music DB, determines an emotion determination model based on the result of analyzing the music DB, derives an emotional care correlation equation by means of a multi-regression analysis based on the result of analyzing the music DB, selects an emotional care solution depending on a contribution rate of the emotion determination model based on the driver emotion model using the emotional care correlation equation, and automatically play music content based on the emotional care solution.

Abstract: A vehicle control apparatus and a method thereof are provided. The vehicle control apparatus includes a first detection device that detects biometric information of a passenger in a vehicle using a sensor and a processor electrically connected with the first detection device. The processor: determines whether to approve a predetermined autonomous driving level based on the biometric information; determines whether the passenger has dementia based on voice interaction in response to determining that the predetermined autonomous driving level is not approved; and determines whether to perform autonomous driving based on the result of determining whether the passenger has dementia.

Abstract: A platform providing system and a platform providing method are disclosed for a vehicle content service to provide a virtual sound design platform using a non-fungible token (NFT)-based blockchain technology. The platform providing system includes a service platform server that constructs a service platform in a metaverse-based virtual environment and includes a blockchain platform server that supports the service platform. The service platform server generates a marketplace by means of a smart contract-based commerce platform in conjunction with the blockchain platform server, generates a smart healing function based on a user experience analysis of a virtual vehicle in the service platform, and generates a sound design platform supporting to design a virtual sound in the service platform and transact the virtual sound in the marketplace.

Abstract: An apparatus and a method for generating a sound of an electrification vehicle are provided. The apparatus comprises a detection device configured to detect state information of a vehicle, a sound output device configured to play and output a virtual sound, and a processing device connected with the detection device and the sound output device. The processing device configured to detect a cornering state of the vehicle based on state information of the vehicle, analyze a longitudinal force, a lateral force, a tire slip ratio, and a tire slip angle according to the cornering state, calculate a cornering force based on the analyzed results, calculate a contact force based on a tire ground surface and road surface profile based on big data, generate a tire slip sound based on the cornering force and the contact force, and control the sound output device to play the tire slip sound.

Abstract: An emotion adjustment system for determining a user's emotions based on a user's voice includes: a microphone configured to receive the user's voice; a controller configured to extract a plurality of sound quality factors in response to processing the user's voice, calculate a depression index of the user based on at least one sound quality factor among the plurality of sound quality factors, identify an emotional state of the user as a depressive state when the depression index is a preset value or more, determine the depressive state as a first state or a second state based on a correlation between at least two sound quality factors among the plurality of sound quality factors, and transmit a control command corresponding to the emotional state of the user identified as the first state or the second state; and a feedback device configured to perform an operation corresponding to the control command.

Abstract: An apparatus for providing a vehicle sound includes a communicator configured to communicates with an electronic device, a detector configured to detect driver's driving pattern information and road driving condition information of a vehicle, and a controller coupled to the communicator and the detector. The controller is configured to obtain music information from the electronic device and calculate a music emotional quotient (EQ) index based on the music information, the driver's driving pattern information, and the road driving condition information. The controller is also configured to select a game sound type based on the music EQ index, and provide an emotional sound matched with the game sound type.

Abstract: Provided are a recovery control system of a fuel cell and a method thereof. The recovery control system includes the fuel cell, a hydrogen supplier configured to supply hydrogen to the fuel cell, an air supplier configured to supply air to the fuel cell, an abnormality sensing unit configured to calculate a difference between a reference cell voltage predetermined depending on an output current of the fuel cell and a measured cell voltage of unit cells and to sense abnormality of air supply to a fuel cell stack based on the calculated difference between the reference cell voltage and the measured cell voltage or change in the difference, and a recovery controller configured to control the air supplier so as to increase a flow rate of air supplied to the fuel cell stack based on the change in the difference, when the abnormality sensing unit senses abnormality of air supply.

Abstract: An apparatus and a method for caring emotion of a driver based on a vehicle sound, may include a detector configured to detect driving information of the vehicle and body information of a user, a non-transitory storage to store instructions, and a processor to execute the instructions. The processor determines an emotional status of the driver by use of at least one of the driving information or the body information, to generate a healing sound by designing a virtual sound based on the driving information and the emotional status of the driver, and to generate and output the healing sound.

Abstract: In a sound system that uses over-the-air (OTA), a blockchain platform server is configured to support performance of a virtual sound transaction in a virtual environment. An OTA server is configured to manage a virtual sound transmitted from the blockchain platform server. A vehicle communication control device is configured to perform wireless communication with the OTA server. The vehicle communication control device is configured to download the virtual sound from the OTA server, determine whether the virtual sound is similar to a predetermined specific sound, perform an OTA state test of the virtual sound when the virtual sound is not similar to the predetermined specific sound, and control a sound processing device to play the virtual sound when the virtual sound passes the OTA state test.

Abstract: An active sound design (ASD) tuning device and a method thereof may include an ASD device that generates a virtual engine sound for each vehicle situation and a control device that outputs a composite sound by correcting and synthesizing the virtual engine sound and an internal sound measured for each vehicle situation based on a binaural vehicle impulse response (BVIR).

Abstract: An apparatus and a method for generating a sound of an electric vehicle are provided. The apparatus determines whether a current condition may be a regenerative braking condition, generates a regenerative braking sound based on an amount of change in motor torque in the regenerative braking condition, and outputs the generated regenerative braking sound.

Abstract: A system for generating a virtual engine sound may include a server having information on at least one review of the virtual engine sound, and a virtual engine sound generator to generate “my sound” by tuning the virtual engine sound based on information on customized design settings, to update a preset driver emotion model for each emotion evaluation area of the virtual engine sound, based on the information on the at least one review of the virtual engine sound, which is received from the server, and to update the virtual engine sound based on the “my sound” and the driver emotion model updated for each emotion evaluation area.

Abstract: Disclosed is a sound design method for overcoming sense of difference when there is no virtual sound while an auto cruise control is activated. The method includes determining whether an accelerator pedal is actuated; upon determining that the accelerator pedal is not actuated, determining whether an auto cruise control system is operating; upon determining whether the auto cruise control system is operating, classifying a vehicle speed-based order component from a driving sound; and reproducing a speed sensitive virtual sound based on the classified vehicle speed-based order component.

Abstract: Disclosed is a method for controlling a fuel cell of a fuel cell vehicle. The method comprises determining a reference output required for restarting or stopping power generation of a fuel cell according to a required output of a vehicle, correcting the reference output based on vehicle driving condition information comprising a vehicle altitude and coolant temperature and degree of degradation of the fuel cell, and restarting or stopping the power generation of the fuel cell based on the corrected reference output.

Abstract: A multisensory index system and an operation method thereof are provided. The multisensory index system is configured to derive quantitative parameters and qualitative parameters associated with an auditory sense and a tactile sense, and generate a multisensory index by analyzing a correlation between the quantitative parameters and the qualitative parameters associated with the auditory sense and the tactile sense.

Abstract: An emotional care apparatus based on a sound and a method thereof are provided. The emotional care apparatus includes a sound output device that outputs a sound to speakers and a processor electrically connected with the sound output device. The processor selects an emotional care mode, separates a sound source for each instrument from music content based on the emotional care mode, distributes the sound source for each instrument to the speakers, and controls the sound output device to play and output the sound source for each instrument to the distributed speakers.

Abstract: A battery control system and method of a fuel cell vehicle includes a battery, a fuel cell, and a controller. The battery provides driving energy of a vehicle. The fuel cell provides the driving energy of the vehicle or charging the battery. The controller estimates a degree of deterioration of the fuel cell, derive a change rate in an SOC value of the battery based on the degree of deterioration of the fuel cell, and change a charge control factor or a discharge control factor of the battery according to the derived change rate in the SOC value of the battery.

Abstract: Disclosed are an ultrasound generator, a pest extermination and repellent system using the ultrasound generator, and a method of controlling the ultrasound generator. The ultrasound generator may include a driving signal generator that generates a driving signal, a modulator that generates a modulated signal by modulating an amplitude of the driving signal, a first ultrasonic vibrator that generates a first ultrasonic signal of a first frequency based on the modulated signal, a second ultrasonic vibrator that generates a second ultrasonic signal of a second frequency based on the modulated signal, and a controller that adjusts an output timing of the modulated signal to output the first ultrasonic signal and the second ultrasonic signal at least once during a unit time period.

Abstract: An ultrasonic generator and a method for repelling a mosquito in a vehicle using the same are provided.