Abstract: An illuminator includes: a light emitter including a light-emitting diode; a temperature sensor configured to detect a current temperature of the light emitter; and an illumination controller configured to adjust a drive voltage being supplied to the light emitter in accordance with the current temperature. The illumination controller includes a reference temperature storage in which a reference temperature is stored in advance and is configured to adjust the drive voltage by detecting the current temperature from the temperature sensor on a constant time cycle and comparing the current temperature with the reference temperature.

Abstract: A ranging device includes transducers, a transmission circuit, a reception circuit, a transfer data generation circuit, and a transfer circuit. The transmission circuit causes the transducers to transmit transmission waves. The reception circuit outputs a received signal obtained by digitizing a reflected wave of the transmission wave with a sampling frequency equal to or more than a frequency of the transmission wave. The generation circuit separates, into a target period and a non-target period, time-series received signals. The target period is a period in which a wave height is equal to or more than a threshold. The non-target period is a period in which a wave height is less than the threshold. The generation circuit performs thinning-out processing on received signals in the non-target period and generates waveform information indicating a waveform received by the transducer. The transfer circuit outputs the waveform information.

Abstract: A ranging device includes transducers, a transmission circuit, a reception circuit, a transfer data generation circuit, and a transfer circuit. The transmission circuit causes the transducers to transmit transmission waves. The reception circuit outputs a received signal obtained by digitizing a reflected wave of the transmission wave with a sampling frequency equal to or more than a frequency of the transmission wave. The generation circuit separates, into a target period and a non-target period, time-series received signals. The target period is a period in which a wave height is equal to or more than a threshold. The non-target period is a period in which a wave height is less than the threshold. The generation circuit performs thinning-out processing on received signals in the non-target period and generates waveform information indicating a waveform received by the transducer. The transfer circuit outputs the waveform information.

Abstract: There is provided a power supply arbitration device that makes it possible for side of a power consumer to take initiative to stabilize a power grid and suppress peak power for the power consumer. The power supply arbitration device including a control unit, a communication unit that communicates with another device through a communication network, and a storage unit that stores information, in which, in a case where a power request received by the communication unit is requested from a power consumption device registered in the storage unit, the control unit specifies a power supply device registered in the storage unit as a power feeding device that supplies power requested by the registered power consumption device on a basis of a power consumption profile associated with the registered power consumption device.

Abstract: A method includes forming an amorphous magnetic film on a film formation subject by sputtering a target that includes any one selected from a group consisting of Mn3Sn, Mn3Ge, and (Mn1-xFex)Ge as a main component and crystalizing the amorphous magnetic film by heating the amorphous magnetic film. The crystalizing includes heating the amorphous magnetic film to a temperature that is greater than or equal to 225° C. and less than or equal to 400° C.

Abstract: [Object] To provide a control apparatus capable of optimum power interchange in the whole of a community including a plurality of customers. [Solution] There is provided a control apparatus including: an acquisition section configured to acquire information regarding consumption of power from a plurality of nodes that store and consume power; and a control section configured to use the information regarding consumption of power to generate data regarding target power storage in each of the nodes, the data being provided to the node.

Abstract: Provided is an arc suppression device including one or more current-limiting circuits provided in parallel with a circuit breaker that switches between feeding and shutoff of power from a power supply. The current-limiting circuit shuts off a current from the power supply when the power from the power supply is fed to a load through a circuit breaker. The current from the power supply is shut off when a voltage generated by a potential difference between contacts of the circuit breaker becomes a predetermined voltage or higher in a case where feeding of the power from the power supply to the load is shut off by the circuit breaker. The potential difference is generated upon shutoff.

Abstract: [Object] To provide a power supply arbitration device that makes it possible for side of a power consumer to take initiative to stabilize a power grid and suppress peak power for the power consumer. [Solution] There is provided a power supply arbitration device including a control unit, a communication unit that communicates with another device through a communication network, and a storage unit that stores information, in which, in a case where a power request received by the communication unit is requested from a power consumption device registered in the storage unit, the control unit specifies a power supply device registered in the storage unit as a power feeding device that supplies power requested by the registered power consumption device on a basis of a power consumption profile associated with the registered power consumption device.

Abstract: A DC power control device including: an instructing unit configured to instruct another device connected to a DC bus line to read a voltage value and a current value on the DC bus line; and a correction reference value deciding unit configured to acquire the voltage value and the current value read by the other device and to decide a correction reference value in transmitting and receiving DC power to and from the other device through the DC bus line using the acquired values.

Abstract: A current limiting circuit configured to: before release of a touch between a second contact provided at a position where a terminal on a power receiving side in which a current flows at supply of DC power in an electrode that supplies the DC power touches before touching a first contact provided for the electrode at supply of the DC power and the terminal, decrease the current flowing into the terminal through the second contact; and avoid flowing a current in a case where the terminal is touching the first contact, and decrease the current flowing into the terminal through the second contact only in a case where the terminal is touching the second contact.

Abstract: A method includes forming an amorphous magnetic film on a film formation subject by sputtering a target that includes any one selected from a group consisting of Mn3Sn, Mn3Ge, and (Mn1-xFex)Ge as a main component and crystalizing the amorphous magnetic film by heating the amorphous magnetic film. The crystalizing includes heating the amorphous magnetic film to a temperature that is greater than or equal to 225° C. and less than or equal to 400° C.

Abstract: A detection apparatus that includes correlation processing systems that each find a correlation between a predetermined code sequence and a wave detection signal obtained by detecting a phase-modulated input wave at a frequency different from a frequency used by a different one of the correlation processing systems, and thereby generate a correlation signal, level reduction processors that each receive the correlation signal from a corresponding one of the plurality of correlation processing systems and reduce a level of the received correlation signal when the correlation signal is not to be used for detection of the target or do not reduce the level of the received correlation signal when the correlation signal is to be used for detection of the target, and a detector that detects at least presence or absence of the target based on the correlation signal processed by each of the plurality of level reduction processors.

Abstract: A method for a communication device includes determining whether a first radio frequency (RF) signal at a level of at least a first predetermined field threshold is detected. The method also includes generating a second RF signal at a level of at least a second predetermined field threshold greater than the first predetermined field threshold, when the communication device receives an instruction to generate the second RF signal and the determining determines that the first RF signal at the level of at least the first predetermined field threshold is not detected. The method further includes receiving a load modulated RF signal in response to the second RF signal.

Abstract: The present disclosure proposes a switching device which, when supplying and interrupting power by combining a mechanical relay with a solid-state relay, suppresses the effects of chattering from the mechanical relay, and thus makes it possible to stably supply and interrupt power. Provided is the switching device including: a semiconductor relay configured to switch between supplying and interrupting power from a power supply; a mechanical relay configured to be connected in parallel to the semiconductor relay and connected at one end to a control terminal of the semiconductor relay; and a switch configured to switch between supplying and interrupting current to the semiconductor relay.

Abstract: [Object] To provide a power transmission and reception control device configured to check whether another consumer is controlling a direct-current bus line when interchanging direct-current power. [Solution] Provided is a power transmission and reception control device including: a power transmission and reception control unit configured to control transmission and reception of direct-current power over a direct-current power line through a DC-to-DC converter connected to the direct-current power line; a power transmission and reception management unit configured to request the power transmission and reception control unit to control the DC-to-DC converter; and a power transmission and reception arbitration unit configured to request the power transmission and reception management unit to perform transmission and reception of power through the DC-to-DC converter.

Abstract: [Object] To provide a switching device in which it is possible to suppress an occurrence of an arc while preventing a contact welding of a switch. [Solution] Provided is the switching device including: a first circuit breaker mechanism provided in a path of current output from a direct current power supply; a second circuit breaker mechanism that is provided in parallel with the first circuit breaker mechanism in the path of current output from the direct current power supply, and is connected and disconnected with a time lag from the first circuit breaker mechanism; a capacitor provided between the direct current power supply and the second circuit breaker mechanism; and a discharging unit that is connected in parallel with the capacitor.

Abstract: A method of operating a first battery server for use with a first node of a power interchange system that distributes direct current (DC) power between nodes, wherein each node of the nodes comprises a storage battery to store electrical energy and a battery server to control transmission of DC power from the storage battery of the node to one or more other nodes and to control receipt of DC power at the node from one or more storage batteries of one or more other nodes. The method comprises, in response to detecting that a state of charge of the first storage battery and/or a usage rate of power satisfies one or more conditions, requesting that a master node of the power interchange system control transmission of power from another node of the nodes to the first node, wherein the master node is one of the nodes.

Abstract: There is provided an integrated circuit capable of performing more secure encrypted communication using near field non-contact wireless communication. The integrated circuit including a communication processing section configured to communicate with another apparatus through non-contact communication, and an encryption information generation section configured to make a determination on generation of authentication information used to mutually authenticate the other apparatus in performing non-contact communication with the other apparatus depending on presence or absence of a history of non-contact communication with the other apparatus, before the communication processing section executes communication of encrypted information with the other apparatus. The integrated circuit allows more secure near field non-contact wireless communication to be performed.

Abstract: A method for a communication device includes determining whether a first radio frequency (RF) signal at a level of at least a first predetermined field threshold is detected. The method also includes generating a second RF signal at a level of at least a second predetermined field threshold greater than the first predetermined field threshold, when the communication device receives an instruction to generate the second RF signal and the determining determines that the first RF signal at the level of at least the first predetermined field threshold is not detected. The method further includes receiving a load modulated RF signal in response to the second RF signal.

Abstract: [Problem] A new and improved arc suppression device is provided that allows for reduction in power consumption in a semiconductor at a time of power shutoff by reducing power consumption of a current-limiting circuit that is used for suppression of an arc occurring at the time of power shutoff. [Solving means] Provided is an arc suppression device including one or more current-limiting circuits provided in parallel with a circuit breaker that switches between feeding and shutoff of power from a power supply. The current-limiting circuit shuts off a current from the power supply when the power from the power supply is fed to a load through a circuit breaker. The current from the power supply is shut off when a voltage generated by a potential difference between contacts of the circuit breaker becomes a predetermined voltage or higher in a case where feeding of the power from the power supply to the load is shut off by the circuit breaker. The potential difference is generated upon shutoff.