Abstract: A semiconductor device includes a channel layer including a first group III-V semiconductor material; a barrier layer provided on an upper surface of the channel layer, the barrier layer including a second group III-V semiconductor material that is different than the first group III-V semiconductor material; a plurality of sources/drains spaced apart from each other on an upper surface of the barrier layer; a gate insulating layer covering the upper surface of the barrier layer and upper surfaces of the plurality of sources/drains; a gate provided on an upper surface of the gate insulating layer, the gate not overlapping the plurality of sources/drains; a plurality of source/drain electrodes electrically connected to corresponding sources/drains among the plurality of sources/drains; and a gate electrode electrically connected to the gate, wherein the plurality of source/drain electrodes has a diagonally symmetrical arrangement.

Abstract: A phase inverter includes a first transistor connected to a single signal port, a second transistor connected to the single signal port, a third transistor connected to a first power supply and forming a first contact point with the first transistor, a fourth transistor connected to the first power supply and forming a second contact point with the second transistor, and a transformer having a primary side connected to the first and the second contact point, and a secondary side connected to a first and a second differential signal port, wherein the phase inverter operates in one of a first phase mode in which only the first and the fourth transistor are turned on according to levels of voltages applied to gates of transistors, and a second phase mode in which only the second and the third transistor are turned on.

Abstract: A content reproducing electronic apparatus includes a communicator including circuitry, an audio output device, and a processor configured to receive state information indicating a state of an external electronic apparatus from the external electronic apparatus located around the electronic apparatus via the communicator, obtain noise information corresponding to the received state information, and control the audio output device to output an audio signal of a content based on a volume corresponding to the obtained noise information.

Abstract: An electronic apparatus including a display is disclosed. The electronic apparatus, based on text information including a plurality of words being input via an input unit, obtain an input claim based on the text information, determine novelty of the input claim by inputting the input claim to a first neural network model, and based on the input claim being novel, determine inventiveness of the input claim by inputting the input claim to a second neural network model.

Abstract: An electronic apparatus includes an interface circuitry; a display; a memory storing one or more instructions; and a processor configured to execute the one or more instructions to: receive a broadcast signal of any one of a plurality of channels through the interface circuitry, control the display to display an image of a content based on the received broadcast signal, identify timing when the content switches from a first content to a second content having a different type than the first content based on a change in a video characteristic defined corresponding to the type of the content, and perform a first operation related to the second content based on the identified timing.

Abstract: A display apparatus includes a display and a processor. The processor is configured to obtain information related to a use environment of the display apparatus, obtain a first image, identify a style among a plurality of styles which are applicable to the first image, based on the information related to the use environment, obtain a second image which is converted from the first image based on information related to the identified style, and control the display to display the second image.

Abstract: A display apparatus includes a display and a processor. The processor is configured to obtain information related to a use environment of the display apparatus, obtain a first image, identify a style among a plurality of styles which are applicable to the first image, based on the information related to the use environment, obtain a second image which is converted from the first image based on information related to the identified style, and control the display to display the second image.

Abstract: An electronic apparatus includes an interface circuitry; a display; a memory storing one or more instructions; and a processor configured to execute the one or more instructions to: receive a broadcast signal of any one of a plurality of channels through the interface circuitry, control the display to display an image of a content based on the received broadcast signal, identify timing when the content switches from a first content to a second content having a different type than the first content based on a change in a video characteristic defined corresponding to the type of the content, and perform a first operation related to the second content based on the identified timing.

Abstract: The disclosure relates to an artificial intelligence (AI) system, which imitates functions of the human brain, such as recognition and determination, using a machine learning algorithm such as deep learning, and an application thereof. A computing device includes: a memory storing one or more instructions; and a processor configured to execute the one or more instructions stored in the memory to execute the one or more instructions to: using at least one neural network, infer user-preferred item candidates and user tastes based on user information; and select and provide an item suited to the user tastes from among the user-preferred item candidates.

Abstract: An electronic apparatus including a display is disclosed. The electronic apparatus, based on text information including a plurality of words being input via an input unit, obtain an input claim based on the text information, determine novelty of the input claim by inputting the input claim to a first neural network model, and based on the input claim being novel, determine inventiveness of the input claim by inputting the input claim to a second neural network model.

Abstract: A content reproducing electronic apparatus includes a communicator including circuitry, an audio output device, and a processor configured to receive state information indicating a state of an external electronic apparatus from the external electronic apparatus located around the electronic apparatus via the communicator, obtain noise information corresponding to the received state information, and control the audio output device to output an audio signal of a content based on a volume corresponding to the obtained noise information.

Abstract: A display apparatus includes a display and a processor. The processor is configured to obtain information related to a use environment of the display apparatus, obtain a first image, identify a style among a plurality of styles which are applicable to the first image, based on the information related to the use environment, obtain a second image which is converted from the first image based on information related to the identified style, and control the display to display the second image.

Abstract: Disclosed herein is a power amplifier using a power combiner, which is capable of minimizing power loss and improving efficiency of the power amplifier with a large output power, by combining powers generated by a plurality of power amplifiers used in a wireless communication system using a transmission line transformer.

Abstract: A power amplifier based on a voltage-coupling scheme is disclosed. The power amplifier includes two active elements connected to each other via a primary part of a transformer, in which one of the two active elements is connected to a power-supply voltage of the amplifier, the other one is connected to a ground terminal of the amplifier, and an output power appears in a secondary part of the transformer. Therefore, a potential difference between ports of the active elements is decreased, resulting in increased reliability of the power amplifier.

Abstract: A transmission line transformer is disclosed. The transformer improves efficiency and a dynamic range of a power amplifier. The transformer is formed to have a plurality of load impedances as the primary side of the transmission line transformer is separated to form a plurality of primary transmission lines with parasitic components which are different from each other. The transformer is used as an impedance matching circuit of the power amplifier requiring a plurality of load impedances.

Abstract: A power amplifier with automatic switching functions is disclosed. The power amplifier can variably control output power of circuits as all of the circuits are operated when relatively large power is needed, and the circuits are partially turned off when relatively small power is needed, according to magnitude of an envelope signal, such that the circuits can be smoothly and automatically switched so as not to affect operations of the circuit, and to improve efficiency and operation range thereof, as parts of the circuit can be turned off/on depending on magnitudes of output power.

Abstract: Disclosed herein is a power amplifier using a power combiner, which is capable of minimizing power loss and improving efficiency of the power amplifier with a large output power, by combining powers generated by a plurality of power amplifiers used in a wireless communication system using a transmission line transformer.

Abstract: Disclosed herein is a power amplifier which is used in a wireless communication system and is capable of improving efficiency in an entire output power range and extending the dynamic range without additional switches, by including a drive amplification unit and a power amplification unit, connecting the drive amplification and the power amplification unit to a matching circuit, and a power coupler included in a transmission line transformer such that the drive amplification unit drives the power amplification unit, or directly outputs power to an output terminal, through the transmission line transformer, that is, the output power of the drive amplification unit is outputted to a load by switching on/off the power amplification unit and the drive amplification unit.

Abstract: A power amplifier based on a voltage-coupling scheme is disclosed. The power amplifier includes two active elements connected to each other via a primary part of a transformer, in which one of the two active elements is connected to a power-supply voltage of the amplifier, the other one is connected to a ground terminal of the amplifier, and an output power appears in a secondary part of the transformer. Therefore, a potential difference between ports of the active elements is decreased, resulting in increased reliability of the power amplifier.

Abstract: Disclosed herein is a power amplifier which is used in a wireless communication system and is capable of improving efficiency in an entire output power range and extending the dynamic range without additional switches, by including a drive amplification unit and a power amplification unit, connecting the drive amplification and the power amplification unit to a matching circuit, and a power coupler included in a transmission line transformer such that the drive amplification unit drives the power amplification unit, or directly outputs power to an output terminal, through the transmission line transformer, that is, the output power of the drive amplification unit is outputted to a load by switching on/off the power amplification unit and the drive amplification unit.