Abstract: A sliding spline shaft device of the present invention includes a male spline and a female spline that is fitted to the male spline in an axially slidable manner, and at least one of the splines has a surface processed layer. The surface processed layer includes an undercoat layer, an intermediate layer containing phosphate, and a topcoat layer containing solid lubricant, in this order. The undercoat layer contains iron nitride and/or iron carbide. Thus, the surface of a base material has high hardness. As a result, microscopic deformation of the sliding surface is reduced, and increase in a real contact area is suppressed, whereby stick-slip is prevented.

Abstract: An electronic device includes a signal processor, a substrate, and a conductive housing. The signal processor includes an oscillator that outputs oscillation signal. The substrate has a ground component, the signal processor being disposed on the substrate. The conductive housing is connected to a first site of the ground component and to a second site that is different from the first site. The first site and the second site being disposed at positions where a first area of the housing in which an impedance is higher than a first threshold due to the first site overlaps at least part of a second area of the housing in which an impedance is lower than a second threshold due to the second site.

Abstract: Aspects are described for a device comprising a wireless transceiver configured to receive a radio frequency (RF) emission from a source device, an energy-harvesting unit configured to charge the first device wirelessly, using a first part of the RF emission, and a processor communicatively coupled to the transceiver. The processor is configured to modulate the first part of the RF emission based on information detected by the device and determine that an energy level of the device is above a threshold. The processor is further configured to transmit, in response to determining that the energy level is above the threshold, using the wireless transceiver, the modulated first part of the RF emission to the source device. The processor is further configured to transmit, in response to determining that the energy level is above the threshold, using the wireless transceiver, a second part of the RF emission wirelessly to another device to charge the other device.

Abstract: Aspects are described for a device comprising a wireless transceiver configured to receive a radio frequency (RF) emission from a source device, an energy-harvesting unit configured to charge the first device wirelessly, using a first part of the RF emission, and a processor communicatively coupled to the transceiver. The processor is configured to modulate the first part of the RF emission based on information detected by the device and determine that an energy level of the device is above a threshold. The processor is further configured to transmit, in response to determining that the energy level is above the threshold, using the wireless transceiver, the modulated first part of the RF emission to the source device. The processor is further configured to transmit, in response to determining that the energy level is above the threshold, using the wireless transceiver, a second part of the RF emission wirelessly to another device to charge the other device.

Abstract: An electronic device includes a signal processor, a substrate, and a conductive housing. The signal processor includes an oscillator that outputs oscillation signal. The substrate has a ground component, the signal processor being disposed on the substrate. The conductive housing is connected to a first site of the ground component and to a second site that is different from the first site. The first site and the second site being disposed at positions where a first area of the housing in which an impedance is higher than a first threshold due to the first site overlaps at least part of a second area of the housing in which an impedance is lower than a second threshold due to the second site.

Abstract: An electronic device includes a signal processor, a substrate, and a conductive housing. The signal processor includes an oscillator that outputs oscillation signal. The substrate has a ground component, the signal processor being disposed on the substrate. The conductive housing is connected to a first site of the ground component and to a second site that is different from the first site. The first site and the second site are disposed at positions where a first area of the housing that is an odd-numbered multiple of ¼ wavelength of the oscillation signal away from the first site overlaps at least part of a second area of the housing that is a multiple of ¼ wavelength of the oscillation signal away from the second site.

Abstract: An electronic device includes a signal processor, a substrate, and a conductive housing. The signal processor includes an oscillator that outputs oscillation signal. The substrate has a ground component, the signal processor being disposed on the substrate. The conductive housing is connected to a first site of the ground component and to a second site that is different from the first site. The first site and the second site are disposed at positions where a first area of the housing that is an odd-numbered multiple of ¼ wavelength of the oscillation signal away from the first site overlaps at least part of a second area of the housing that is a multiple of ¼ wavelength of the oscillation signal away from the second site.

Abstract: A display device includes a signal processor, a display component, a substrate, and a conductive housing. The signal processor includes an oscillator that outputs oscillation signal, the signal processor processing signal whose frequency is higher than a specific threshold. The display component displays video. The substrate has a ground component, the signal processor being disposed on the substrate. The conductive housing is connected to a first site of the ground component and to a second site that is different from the first site. The first site and the second site are disposed at positions where a first area of the housing that is an odd-numbered multiple of ¼ wavelength of the oscillation signal away from the first site overlaps at least part of a second area of the housing that is a multiple of ¼ wavelength of the oscillation signal away from the second site.

Abstract: A display device includes a signal processor, a display component, a substrate, and a conductive housing. The signal processor includes an oscillator that outputs oscillation signal. The signal processor processes signal whose frequency is higher than a specific threshold. The display component displays video. The substrate has a ground component. The signal processor is disposed on the substrate. The conductive housing is connected to a first site of the ground component and to a second site that is different from the first site. The first site and the second site are disposed at positions where a first area of the housing in which an impedance is higher than a first threshold due to the first site overlap at least part of a second area of the housing in which an impedance is lower than a second threshold due to the second site.

Abstract: A display device includes a signal processor, a display component, a substrate, and a conductive housing. The signal processor includes an oscillator that outputs oscillation signal, the signal processor processing signal whose frequency is higher than a specific threshold. The display component displays video. The substrate has a ground component, the signal processor being disposed on the substrate. The conductive housing is connected to a first site of the ground component and to a second site that is different from the first site. The first site and the second site are disposed at positions where a first area of the housing that is an odd-numbered multiple of ¼ wavelength of the oscillation signal away from the first site overlaps at least part of a second area of the housing that is a multiple of ¼ wavelength of the oscillation signal away from the second site.

Abstract: There is provided a radio frequency power source device configured to change a voltage ratio between two output end voltages, by switching a connection state of a voltage divider that divides the radio frequency voltage, in such a manner that the radio frequency voltage is divided into voltage outputs in antiphase with each other with respect to ground potential, and high voltage and low voltage are delivered in switching manner. Switching of the connection state in the voltage divider enables selective delivery of voltage having different values, high voltage or low voltage, and by selecting and delivering high voltage for the time high voltage is required, reduction of the voltage output from the radio frequency output circuit is prevented.

Abstract: There is provided a radio frequency power source device configured to change a voltage ratio between two output end voltages, by switching a connection state of a voltage divider that divides the radio frequency voltage, in such a manner that the radio frequency voltage is divided into voltage outputs in antiphase with each other with respect to ground potential, and high voltage and low voltage are delivered in switching manner. Switching of the connection state in the voltage divider enables selective delivery of voltage having different values, high voltage or low voltage, and by selecting and delivering high voltage for the time high voltage is required, reduction of the voltage output from the radio frequency output circuit is prevented.

Abstract: A display device includes a signal processor, a display component, a substrate, and a conductive housing. The signal processor includes an oscillator that outputs oscillation signal. The signal processor processes signal whose frequency is higher than a specific threshold. The display component displays video. The substrate has a ground component. The signal processor is disposed on the substrate. The conductive housing is connected to a first site of the ground component and to a second site that is different from the first site. The first site and the second site are disposed at positions where a first area of the housing in which an impedance is higher than a first threshold due to the first site overlap at least part of a second area of the housing in which an impedance is lower than a second threshold due to the second site.

Abstract: In an inverter circuit, more particularly in a single-phase inverter, soft switching is performed with a simple configuration to prevent switching loss of a switching element. A resonance circuit is configured by a resonant capacitor provided on the power supply side of a bridge circuit constituting a single phase inverter, a resonant inductor provided on the output side of the bridge circuit, and the bridge circuit. A resonance current passing through the resonance circuit allows zero voltage switching (ZVS) and zero current switching (ZCS) to be implemented at the rising time of main switching elements constituting the bridge circuit, and the zero voltage switching is implemented by means of zero voltage of the resonant capacitor at the falling time of the main switching elements constituting the bridge circuit.

Abstract: A signal transfer device includes a signal transmitter, a first amplitude adjustment component, an adjustment signal output component, a detector and a second amplitude adjustment component. The signal transmitter outputs signals to first and second transfer paths based on single-phase or differential input signal. The first amplitude adjustment component adjusts at least one of amplitudes of the signals transferred to the first and second transfer paths based on a predetermined amplitude ratio. The adjustment signal output component outputs adjustment signals to the first and second transfer paths. The detector detects the adjustment signals. The second amplitude adjustment component adjusts at least one of the amplitudes of the signals transferred to the first and second transfer paths based on detection result of the detector.

Abstract: An electronic device includes a signal sender that sends a pair of transmission signals of mutually opposite phases to an external device via a pair of transmission paths. The signal sender differentiates each amplitude of the pair of transmission signals.

Abstract: In a voltage-type DC power supply provided with an inverter, current supply from the inverter to the load side is suppressed when arc is generated. DC output from the voltage-type DC power supply is suspended and resumed: upon suspending the DC output, the chopper is separated from the inverter, thereby suppressing excessive current to the load when arc is generated, allowing the arc to be extinguished at high speed, and holding the current passing through the chopper in the form of circulating current. Upon restarting the inverter, the circulating current being held is supplied to the load, thereby reducing a delay of supply of DC power to the load at the time of resuming the DC output from the voltage-type DC power supply.

Abstract: A signal transfer device includes a signal transmitter, a first amplitude adjustment component, an adjustment signal output component, a detector and a second amplitude adjustment component. The signal transmitter outputs signals to first and second transfer paths based on single-phase or differential input signal. The first amplitude adjustment component adjusts at least one of amplitudes of the signals transferred to the first and second transfer paths based on a predetermined amplitude ratio. The adjustment signal output component outputs adjustment signals to the first and second transfer paths. The detector detects the adjustment signals. The second amplitude adjustment component adjusts at least one of the amplitudes of the signals transferred to the first and second transfer paths based on detection result of the detector.

Abstract: In an inverter circuit, more particularly in a single-phase inverter, soft switching is performed with a simple configuration to prevent switching loss of a switching element. A resonance circuit is configured by a resonant capacitor provided on the power supply side of a bridge circuit constituting a single phase inverter, a resonant inductor provided on the output side of the bridge circuit, and the bridge circuit. A resonance current passing through the resonance circuit allows zero voltage switching (ZVS) and zero current switching (ZCS) to be implemented at the rising time of main switching elements constituting the bridge circuit, and the zero voltage switching is implemented by means of zero voltage of the resonant capacitor at the falling time of the main switching elements constituting the bridge circuit.

Abstract: A DC power source to supply DC power to a plasma generator is configured as a simple and small-sized device that forms high voltage for generating a plasma discharge. A step of passing a short-circuit current for extremely short time through the voltage source step-down chopper provided in the DC power source and accumulating energy in a reactor is performed repeatedly more than once, so as to discharge the energy accumulated in the reactor to the output capacitance and raise the output voltage sequentially, thereby boosting the voltage up to the ignition set voltage. The short-circuit current is formed by a switching element of a boosting circuit provided in the DC power source. Boosting the voltage at the output terminal by accumulating and discharging the short-circuit current is repeated to raise the voltage at the output terminal of the DC power source up to the ignition set voltage.