Abstract: An audio-visual system may include a housing comprising an open upper end and a storage space, an audio-visual device installed inside the housing and exposable through the open upper end, and a lifting device configured to expose or store the audio-visual device inside the housing through the open upper end. The audio-visual device may include a display, a speaker, and a processor configured to control the audio-visual system to operate in a first mode for outputting media art content while the display is stored in the housing according to a first event, operate in a second mode for outputting audio content through the speaker while part of the display is exposed through the open upper end according to a second event, and operate in a third mode for outputting a visual content while the entire display is exposed through the open upper end according to a third event.

Abstract: The present disclosure relates to technology that performs encrypted communication via a network or a bus, and a communication method using a security key between nodes connected via a network or a bus includes setting a critical cluster among multiple nodes, selecting a primary message shared between the set critical clusters, and encrypting a message using a key generated to be valid for a preset period to enable communication between the critical clusters, wherein each of the critical clusters stores the primary message for the preset period according to a same key generation scheme to generate a block, and generates and possesses a new key based on the generated block and a currently used key, so that information about a previous message and a previous key is sequentially accumulated in the new key.

Abstract: The present disclosure relates to a search technology using a data structure for supporting multi-search in a blockchain-based IoT environment, and a method for providing a search function for blockchain includes receiving block data via a network, verifying transactions included in the received block data, and adding the block data as a node to an index tree of multidimensional index structures based on information about each transaction in the transaction verification.

Abstract: Systems, apparatuses and methods may provide for technology that includes a charge pump and applies a program voltage from the charge pump to selected wordlines in the NAND memory. The technology may also conduct a discharge of the program voltage from the charge pump and maintain a connection between the selected wordlines and a pass voltage of the charge pump while the program voltage is being discharged. In one example, the connection between the selected wordlines and the pass voltage prevents the selected wordlines from floating.

Abstract: The total silicon area used by a plurality of high voltage transistors in an array of NAND cells is reduced by modifying the silicon area layout such that the size of the source and drain of each of the plurality of high voltage transistors is dependent on the maximum voltage to be applied to each of the source and drain for the respective one of the plurality of high voltage transistors.

Abstract: An example of an apparatus may include NAND memory and circuitry coupled to the NAND memory to monitor a sense voltage for an operation associated with a wordline of the NAND memory, and adjust a negative charge pump for the wordline prior to completion of the operation based on the monitored sense voltage. Other examples are disclosed and claimed.

Abstract: Provided is a storage system for voice recording information based on a blockchain. The storage system for voice recording information comprises: a voice-to-text conversion device for converting a voice recording file into a text file using a preset voice-to-text conversion algorithm, and outputting the converted text file and information on the voice-to-text conversion algorithm; a blockchain network consisting of a plurality of participating nodes, and configured to generate blocks including the text file and information on the voice-to-text conversion algorithm output from the voice-to-text conversion device according to a preset consensus algorithm, and to store the generated blocks on the blockchain; and a data storage device for storing the original voice recording file, wherein the storage system reliably stores the text file for the voice recording file.

Abstract: The total silicon area used by a plurality of high voltage transistors in an array of NAND cells is reduced by modifying the silicon area layout such that the size of the source and drain of each of the plurality of high voltage transistors is dependent on the maximum voltage to be applied to each of the source and drain for the respective one of the plurality of high voltage transistors.

Abstract: Proposed are a radiation module, which can uniformly radiate microwaves from an upper part of a cooking chamber and can offset reflected waves in waveguides when microwaves are radiated from the upper part of the cooking chamber, and a microwave range having the same. The radiation module includes: first and second waveguides disposed at an upper part of a cooking chamber to form parallel routes to guide microwaves of a magnetron; and a plurality of paired slot antennas arranged on bottom surfaces of the first and second waveguides in a progress direction of the microwaves, wherein each paired slot antenna includes two slot antennas, the two slot antennas have a first interval distance relative to the progress direction of the microwaves and are arranged to intercross each other in the opposite directions to each other based on central lines of the waveguides.

Abstract: A 4G magnetron is disclosed. The magnetron may include an anode, having a cylindrical member and anode vanes disposed within the cylindrical member which define resonant cavities therebetween, and a dispenser cathode, suitable for heating and located coaxially within said anode. The magnetron may operate in a temperature range of about 850-1050 C. The magnetron may include conductive cooling. The magnetron may comprise inventive anode and cathode structures. A method for preparing a plurality of magnetron tubes substantially simultaneously is further provided.

Abstract: Provided are a microwave range, which uniformly radiates microwaves from an upper part of a cooking chamber in order to cook food, and a radiation module thereof. The microwave range includes a cooking chamber, a magnetron that radiates microwaves through an antenna, and a radiation module including a waveguide that introduces the microwaves into an upper part of a rectangular upper surface of a cooking chamber from the antenna and provides a propagation path along which the introduced microwaves are horizontally guided along sides of the upper part of the upper surface of the cooking chamber, and radiating the microwaves to the cooking chamber through two or more paired slot antennas formed on a bottom surface of the waveguide.

Abstract: The present disclosure relates to a search technology using a data structure for supporting multi-search in a blockchain-based IoT environment, and a method for providing a search function for blockchain includes receiving block data via a network, verifying transactions included in the received block data, and adding the block data as a node to an index tree of multidimensional index structures based on information about each transaction in the transaction verification.

Abstract: The present disclosure relates to technology that performs encrypted communication via a network or a bus, and a communication method using a security key between nodes connected via a network or a bus includes setting a critical cluster among multiple nodes, selecting a primary message shared between the set critical clusters, and encrypting a message using a key generated to be valid for a preset period to enable communication between the critical clusters, wherein each of the critical clusters stores the primary message for the preset period according to a same key generation scheme to generate a block, and generates and possesses a new key based on the generated block and a currently used key, so that information about a previous message and a previous key is sequentially accumulated in the new key.

Abstract: A rechargeable power module (RPM) may include a rechargeable energy storage device such as a battery or capacitor, a charging circuit, a direct-current (DC) to DC converter, a low drop-out (LDO) voltage regulator and a controller. The charging circuit provides the rechargeable energy storage device with a charging current based on power requirements of device under test and the state of charge, or storage, of the energy storage device.

Abstract: An adapter for an engine cooling system is provided. The adapter, includes a main pipe, having a first end coupled to a first degassing line connected to a high-temperature component, and a second end of coupled to a second degassing line connected to a reservoir tank. A branch pipe is branched from one side of the main pipe to be coupled to a third degassing line connected to the low-temperature component. An inner pipe is disposed at an interior circumference of the main pipe and has a diameter that is gradually reduced toward the reservoir tank.

Abstract: A rechargeable power module (RPM) may include a rechargeable energy storage device such as a battery or capacitor, a charging circuit, a direct-current (DC) to DC converter, a low drop-out (LDO) voltage regulator and a controller. The charging circuit provides the rechargeable energy storage device with a charging current based on power requirements of device under test and the state of charge, or storage, of the energy storage device.

Abstract: A rechargeable power module (RPM) may include a rechargeable energy storage device such as a battery or capacitor, a charging circuit, a direct-current (DC) to DC converter, a low drop-out (LDO) voltage regulator and a controller. The charging circuit provides the rechargeable energy storage device with a charging current based on power requirements of device under test and the state of charge, or storage, of the energy storage device.

Abstract: A heat exchanger apparatus for a vehicle includes a heat exchanging unit including one or more plate units in which two or more plates are stacked to form different connection channels and exchanging heat with each other while different operating fluids pass through the respective connection channels in the heat exchanging unit, an upper cover mounted on one side of the heat exchanging unit, and including a plurality of inlets that introduce each operating fluid into the heat exchanging unit and are interconnected with the respective connection channels, and a lower cover mounted on the other side of the heat exchanging unit, and including a plurality of outlets that are interconnected with the respective connection channels so as to discharge the each operating fluid passing through the heat exchanging unit.

Abstract: An adapter for an engine cooling system is provided. The adapter, includes a main pipe, having a first end coupled to a first degassing line connected to a high-temperature component, and a second end of coupled to a second degassing line connected to a reservoir tank. A branch pipe is branched from one side of the main pipe to be coupled to a third degassing line connected to the low-temperature component. An inner pipe is disposed at an interior circumference of the main pipe and has a diameter that is gradually reduced toward the reservoir tank.

Abstract: A rechargeable power module (RPM) may include a rechargeable energy storage device such as a battery or capacitor, a charging circuit, a direct-current (DC) to DC converter, a low drop-out (LDO) voltage regulator and a controller. The charging circuit provides the rechargeable energy storage device with a charging current based on power requirements of device under test and the state of charge, or storage, of the energy storage device.