Abstract: A differential amplification circuit includes a differential amplifier configured to output a signal including harmonics and first and second filters configured to reduce level of an even harmonic included in output from the differential amplifier. The first and second filters are connected to output of the differential amplifier. The first filter includes a resonant circuit composed of a capacitor and an inductor and a resonant circuit composed of a capacitor and the inductor. The second filter includes a resonant circuit composed of a capacitor and an inductor and a resonant circuit composed of a capacitor and the inductor. A center frequency of the first filter is lower than a center frequency of the even harmonic. A center frequency of the second filter is higher than the center frequency of the even harmonic.

Abstract: A differential amplification circuit includes a differential amplifier configured to output a signal including harmonics and first and second filters configured to reduce level of an even harmonic included in output from the differential amplifier. The first and second filters are connected to output of the differential amplifier. The first filter includes a resonant circuit composed of a capacitor and an inductor and a resonant circuit composed of a capacitor and the inductor. The second filter includes a resonant circuit composed of a capacitor and an inductor and a resonant circuit composed of a capacitor and the inductor. A center frequency of the first filter is lower than a center frequency of the even harmonic. A center frequency of the second filter is higher than the center frequency of the even harmonic.

Abstract: A matching circuit includes: a first wire having one end connected to a first terminal and another end; a second wire having one end connected to the other end of the first wire and another end connected to a first reference potential and electromagnetically coupled to the first wire; and a third wire having one end connected to the one end of the second wire and another end connected to a second terminal and electromagnetically coupled to at least one of the first wire and the second wire.

Abstract: A matching circuit includes an input terminal configured to receive an amplified signal from a power amplifier, an output terminal, a first inductor having a first end connected to the input terminal, and a second end connected to the output terminal, a first capacitor connected in parallel to the first inductor, a second inductor having a first end connected to the input terminal, and a second end connected to ground, and a first series resonant circuit connected in parallel to the second inductor.

Abstract: An injection molding machine according to the present embodiment includes an injecting device and a controlling unit, the injection device being configured to inject a material into molds, the controlling unit being configured to control the injecting device and control, based on a past speed setting of an injection speed set in past and a past speed detection result in a molding cycle performed in advance, an injection speed in an injecting process through which the injecting device injects the material into the molds, the past speed detection result being detected in past by a speed sensor configured to detect the injection speed.

Abstract: A setting timing data acquisition module configured to acquire a plurality of pieces of setting timing data being monitoring data at preset timings among pieces of monitoring data obtained when molding a molded article by an injection molding machine; a waveform data acquisition module configured to acquire waveform data being the monitoring data continuous in a predetermined period among the pieces of monitoring data; a sample point data acquisition module configured to acquire a plurality of pieces of sample point data in the waveform data; a combined data generation module configured to combine a monitoring data group including the plurality of pieces of setting timing data and the plurality of pieces of sample point data to generate combined data; and a pass/fail determination module configured to determine whether a defective article has occurred in the molded article, based on the combined data are included.

Abstract: A power amplifier circuit includes a carrier amplifier, which amplifies a first signal and outputs a first amplified signal from a first output terminal, a peak amplifier, which amplifies a second signal and outputs a second amplified signal from a second output terminal, a first inductor, connected to the first output terminal and a first node, a first capacitor, connected to the first node and the ground, a second inductor, connected to the second output terminal and a second node, a second capacitor, connected to the second node and the ground, a third inductor, connected to the first node and a third node connected to a load, and a third capacitor, connected to the second node and the third node.

Abstract: An injection molding machine according to the present embodiment includes an injecting device and a controlling unit, the injection device being configured to inject a material into molds, the controlling unit being configured to control the injecting device and control, based on a past speed setting of an injection speed set in past and a past speed detection result in a molding cycle performed in advance, an injection speed in an injecting process through which the injecting device injects the material into the molds, the past speed detection result being detected in past by a speed sensor configured to detect the injection speed.

Abstract: An injection molding machine includes: a controller configured to instruct an operation indicated by first or second operation information associated with at least either first or second image information displayed on a display, or to execute processing by a system program, wherein the first and second operation information is information about an injection molding operation according to a first or second production condition, and operation information about first and second molds or operation information about a mold clamping mechanism from beginning to completion of the injection molding operation, the display displays a plurality of operating points indicating positions of the first mold, the second mold or the mold clamping mechanism relative to time or process from the beginning of the injection molding operation, and line segments connecting the plurality of operating points, and the first and second image information are displayed on the operating points.

Abstract: A substrate and a chip device mounted on a main surface of the substrate are provided. The chip device is provided with a first differential amplifier including a first carrier amplifier and a second carrier amplifier, and a second differential amplifier including a first peak amplifier and a second peak amplifier. In the chip device, the first carrier amplifier and the second carrier amplifier are disposed side by side in a first direction, the first carrier amplifier and the first peak amplifier are disposed side by side in a second direction different from the first direction, the first peak amplifier and the second peak amplifier are disposed side by side in the first direction, and the second carrier amplifier and the second peak amplifier are disposed side by side in the second direction.

Abstract: A power amplifier circuit includes: a high pass filter that has one end into which a high frequency input signal is inputted; a first amplifier that amplifies the high frequency input signal outputted from the other end of the high pass filter and outputs a high frequency signal obtained through the first amplification; a second amplifier that amplifies the high frequency signal and outputs a high frequency output signal obtained through the second amplification; an automatic transformer that performs impedance matching between the first amplifier and the second amplifier; and an impedance circuit, one end of which is electrically connected with the other end of the high pass filter, the other end of which is electrically connected with an output terminal of a bias circuit outputting bias voltage or bias current to the first amplifier, and that outputs the high frequency input signal to the bias circuit.

Abstract: An injection molding machine pass/fail determination system includes: a monitoring data extraction module that extracts non-defective article monitoring data and defective article monitoring data from basic data in which a pass/fail determination result on a molded article formed by an injection molding machine is associated with monitoring data; a high-influence monitoring data extraction module that extracts high-influence monitoring data having a high influence on a defect type from among the extracted monitoring data; a molding parameter calculation module that calculates a molding parameter being a parameter to be used when pass/fail determination of the molded article during molding performed by the injection molding machine is performed based on the monitoring data of the same type as the high-influence monitoring data; and a pass/fail determination module that compares the molding parameter with a determination threshold being a threshold for the molding parameter and determines whether a defective ar

Abstract: A power amplifier includes a first amplifier configured to amplify a first high-frequency signal, a second amplifier configured to amplify a second high-frequency signal delayed with respect to the first high-frequency signal by at least 90 degrees, a hybrid coupler including a first transmission line and a second transmission line, a first power-supply circuit for the first amplifier, a second power-supply circuit for the second amplifier, and an output matching network. The hybrid coupler is connected to an output end of the first amplifier at a first end of the first transmission line. The first transmission line is connected to the first power-supply circuit and the output matching network at a second end. The second transmission line is connected to an output end of the second amplifier at a first end. The second transmission line is connected to the second power-supply circuit at a second end.

Abstract: An ultrasound diagnostic apparatus includes a head-mounted display that is mounted on a head of a user and has a camera unit configured to acquire a view image obtained by imaging a field of view in front of the user, and a puncture needle length calculation unit (46) that, in a case where at least a part of the puncture needle is imaged by the camera unit, recognizes the puncture needle by performing image analysis on the view image, and calculates a length of the puncture needle in the view image.

Abstract: A differential amplifier circuit includes a first and second amplifiers that output a differential signal in a radio-frequency band, a first inductor having a first end connected to an output end of the first amplifier, a second inductor having a first end connected to an output end of the second amplifier, a choke inductor connected to second ends of the first and second inductors, a first and second capacitors, and a switch that connects the second capacitor in parallel to the first capacitor or terminates a parallel connection of the first and second capacitors. A resonant circuit formed by connecting the first or second inductor in series with the first capacitor has a different resonant frequency from a resonant circuit formed by connecting the first or second inductor in series with the parallel-connected first and second capacitors. These resonant frequencies correspond to second harmonic frequencies of the differential signal.

Abstract: A matching circuit includes: a first wire having one end connected to a first terminal and another end; a second wire having one end connected to the other end of the first wire and another end connected to a first reference potential and electromagnetically coupled to the first wire; and a third wire having one end connected to the one end of the second wire and another end connected to a second terminal and electromagnetically coupled to at least one of the first wire and the second wire.

Abstract: A power amplifier circuit includes a power amplifier including a first transistor having a first terminal connected to a reference potential, a second terminal to which a first current and a radio-frequency signal are input, and a third terminal connected to a first power supply potential via a first inductor; a capacitor connected to the third terminal of the first transistor; a second transistor including a first terminal connected to the capacitor and the reference potential via a second inductor, a second terminal to which a second current is input and is connected to the reference potential, and a third terminal connected to the first power supply potential via a third inductor and outputs signal; and an adjustment circuit that outputs a third current corresponding to the first power supply potential or a second power supply potential to the second terminal of the second transistor.

Abstract: A power amplifier circuit includes first and second bias circuits configured to provide first and second biases, respectively, a first transistor having an emitter connected to a reference potential, a base configured to receive the first bias via a first resistor and receive a radio-frequency input signal via a first capacitor, and a collector configured to output an amplified radio-frequency signal, a second transistor having a base connected to the reference potential via a second capacitor and configured to receive the second bias via a second resistor, an emitter configured to receive the radio-frequency signal, and a collector connected to a power supply potential via a third inductor and configured to output a radio-frequency output signal, and an impedance circuit having a first end connected to an output section of the second bias circuit and configured to apply an alternating-current signal to a path extending from the second bias circuit.

Abstract: A differential amplification circuit includes a differential amplifier configured to output a signal including harmonics and first and second filters configured to reduce level of an even harmonic included in output from the differential amplifier. The first and second filters are connected to output of the differential amplifier. The first filter includes a resonant circuit composed of a capacitor and an inductor and a resonant circuit composed of a capacitor and the inductor. The second filter includes a resonant circuit composed of a capacitor and an inductor and a resonant circuit composed of a capacitor and the inductor. A center frequency of the first filter is lower than a center frequency of the even harmonic. A center frequency of the second filter is higher than the center frequency of the even harmonic.

Abstract: A power amplifier circuit includes: a high pass filter that has one end into which a high frequency input signal is inputted; a first amplifier that amplifies the high frequency input signal outputted from the other end of the high pass filter and outputs a high frequency signal obtained through the first amplification; a second amplifier that amplifies the high frequency signal and outputs a high frequency output signal obtained through the second amplification; an automatic transformer that performs impedance matching between the first amplifier and the second amplifier; and an impedance circuit, one end of which is electrically connected with the other end of the high pass filter, the other end of which is electrically connected with an output terminal of a bias circuit outputting bias voltage or bias current to the first amplifier, and that outputs the high frequency input signal to the bias circuit.