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JP7118296B2 |
A first phase shift circuit amplifies, when a first signal, a second signal having a phase difference of 90 degrees from the first signal, a third signal having a phase difference of 180 degrees from the first signal, and a fourth signal...
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JP7115630B2 |
A phase shifter includes: a first transistor including a first source and a first drain; a second transistor including a second source and a second drain; a first inductor connected with the first source and the first drain, connected in...
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JP7111482B2 |
A power system for a vehicle comprising: a battery; a charging interface for receiving external power to charge the battery; a network connecting the battery and the charging interface, wherein at least a part of the network is a DC netw...
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JP7111923B1 |
A digital phase shift circuit and a digital phase shifter that can be made smaller than before. A signal line extending in a predetermined direction, a first inner line spaced on one side of the signal line, a second inner line spaced on...
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JP2022110070A |
To provide a radio frequency (RF) amplification system allowing increased accuracy, faster impedance matching, enhanced tuning bandwidth over wide impedance ranges, and operation at high power levels with low insertion losses.In a radio ...
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JP7103505B2 |
The present invention provides a common mode choke coil and an electromagnetic interference filter circuit.　The common mode choke coil comprises a first primary winding, a second primary winding, and a secondary winding. The secondary ...
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JP7100205B2 |
An electronically-controlled resistor (ECR) for controlled changing of resistance of a portion of an electric circuit is provided with a terminal for connecting to a first source of controlling voltage and comprises a voltage converter, ...
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JP2022100260A |
To provide a device and a method of a phase shifter with a switched transmission line load.A phase shifter 210 includes a first port, a first controllable reflective load 201, a second port, a second controllable reflective load 202, and...
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JP7088465B2 |
A variable attenuator operable in a frequency band from at least 10 GHz is disclosed. The variable attenuator includes an input port; an output port; a first transmission line connecting the input port with the output port; an attenuatin...
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JP7084122B2 |
Disclosed is a noise filter. The noise filter includes an input port to receive an analog signal. The noise filter further includes a multiplexer coupled to the input port. The multiplexer separates the analog signal into a plurality of ...
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JP2022081445A |
To provide a filter stage system.A filter stage system includes a continuous time baseband filter comprising a feedback loop that employs at least one first impedance node and at least one second impedance node. The at least one first im...
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JP7074802B2 |
Bias networks for amplifiers are disclosed. An example bias network includes an adaptive bias circuit, configured to generate a bias signal for an amplifier, and further includes a coupling circuit, configured to couple the adaptive bias...
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JP7060195B2 |
Disclosed is a variable attenuator (v-ATT). The v-ATT includes an input terminal, an output terminal, a transmission line between the input terminal and the output terminal, at least two stages arranged between the transmission line and ...
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JP7056346B2 |
A quadrature oscillator includes a first oscillator that outputs a first differential signal, and a second oscillator that outputs a second differential signal having phases that are different from those of the first differential signal,...
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JP7044311B2 |
To provide an active noise filter that can suppress common mode noise in a wide band.An active noise filter 10 includes noise filters 11 and 12 for suppressing common mode noise in a first frequency band and in a second frequency band. T...
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JP2022042760A |
To provide a biquad filter in which each parameter can be adjusted independently.In a biquad filter, an output terminal of a first integrator is connected to an input terminal on the negative side of a second integrator, and the output t...
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JP7033746B2 |
To reduce a change in negative impedance due to an increase in the frequency of an input signal.A negative impedance conversion circuit 1 includes a conversion element Z1 and two transistors Tr1 and Tr2. The conversion element Z1 is elec...
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JP7025498B2 |
To provide a single differential conversion circuit capable of having a wide output operation range.A single differential conversion circuit 10 includes a first level shifter 12 that shifts the level of an input signal IN and a second ou...
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JP7024035B1 |
To provide a new technique for improving the distinguishability between a ground element and noise in an on-vehicle device for detecting a ground element. An on-vehicle device 10 is the same as an FFT unit 202 that analyzes the amplitude...
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JP7008442B2 |
In an illustrative example, a device includes an operational amplifier (106, 136) of an active bandpass filter circuit (100). The device further includes an adjustable resistance device (118, 122, 128, 130, 200, 404) configured to adjust...
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JP2022509631A |
It is an active decoupling device that stabilizes the impedance of power lines in a predetermined frequency band. The decoupling device of the present invention has a transformer having a primary winding that is inductively coupled to th...
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JP6986066B2 |
According to the present invention, a noise removal circuit (100) has a function of an attenuator which attenuates, at a prescribed ratio, a signal of a voltage difference between a first input signal terminal (1) and a second input sign...
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JP6982234B2 |
To provide an automatic tracking adjustment unit for a bandpass filter, which allows for automatic tracking adjustment of single radio communication equipment without using any special jig, while shortening adjustment time inexpensively....
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JPWO2020170668A1 |
An object of the present invention is to provide an amplifier circuit that operates normally even if the input and the output are opposite to each other. The amplifier circuit (1) according to the present invention includes a first block...
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JP6961150B2 |
Methods and devices are described for lossless bandsplitting and bandjoining of streams of signal samples using allpass filtering. The bandsplitting operation reformats an original stream into two intermediate streams representing even a...
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JP2021170746A |
To provide a circuit module and a network module that can provide noise countermeasures according to the connected target device.A circuit module 1 transmits serial signals via a coaxial cable 3. It has a ferrite bead 141 provided in the...
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JP2021164082A |
To remove a noise from a sensor signal with a simple structure.A CPU 12 removing a noise from non-continuous data of a sensor output value indicating a state amount periodically increased in accordance with a continuous change in a state...
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JP6942283B2 |
A phase-variable frequency multiplier includes: a 90-degree divider for dividing an input signal into an I-signal and a Q-signal; an amplitude setting circuit for distributing each of the I-signal and the Q-signal to two paths, setting a...
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JP6939350B2 |
To provide a filter for inputting an AC, capable of detecting the change of an AC input without receiving influence of variation of a circuit constant.A filter for inputting an AC comprises: a comparison circuit 11 that compares an absol...
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JP6935867B2 |
To provide an active noise filter capable of suppressing common mode noise over a wide range and also to provide an active noise filter characteristic method.In a noise suppressing system 1, an active noise filter 10 includes: a noise fi...
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JP6929149B2 |
An inductive synthesis circuit that mimics an ideal inductor over a wide range of inductance values, from less than 1 mH to more than 100 H, can be used in place of an inductor in any electrical circuit. One application of a synthesized ...
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JP6925561B2 |
A directional coupler is configured so as to include: a resistive element in which one end thereof is connected to a first terminal and the other end is connected to a second terminal; a first amplifier circuit for outputting either a cu...
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JP6914966B2 |
This technology relates to a single-phase differential conversion circuit for improving the linearity of input/output characteristics, a signal processing method for use with the circuit, and a reception apparatus. The single-phase diffe...
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JP2021093586A |
To reduce spurious at a low area side and spurious at a high area side.A signal output device 100 comprises: a first multiplication circuit 103 that generates signals with multiplied frequencies having frequencies of a reference signal m...
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JP6887702B2 |
A self-calibrated system on a chip includes a semiconductor substrate, at least one silicon intellectual property (SIP) circuit including dynamic random access memories (DRAMs), a calibration circuit, and a function circuit, a cyclic osc...
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JP6876735B2 |
To compensate a loss at a low frequency band with a simple circuit configuration.A variable low frequency equalizer 1 includes: an inductor L1 connected to a transmission line Wa which transmits a high-speed digital signal; a variable at...
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JP6838116B1 |
To provide a frequency converter capable of supplying a target signal in a single transmission path while synthesizing and distributing the target signal in a high frequency band, and capable of reducing the size and widening the analysi...
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JP2021034950A |
To provide a functional signal processor in which a filter circuit is effectively used.According to one embodiment, a signal processing circuit comprises: a first resistor provided between a first input terminal and a first connection en...
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JP6817331B2 |
An impedance matching network (104, 304, 1004) is disclosed for providing an impedance match between a RF generator (102, 202, 302, 1002) and a load (106) such as a plasma chamber (306), the impedance matching network comprising: a first...
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JP6811459B2 |
To provide a current source drive type disturbing wave suppression filter capable of keeping the magnitude of attenuation of disturbing wave in common mode in a low frequency band width, while operating electronic equipment.A current sou...
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JP6809147B2 |
A variable attenuation device includes: a first variable attenuator configured to receive a first signal through a first input end, attenuate the first signal by an amount of attenuation according to a control voltage, and output the att...
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JP6808096B2 |
The present invention is provided with: a high-pass filter (100) connected between a first output end (3b) of an input-side changeover switch (3) and a first input end (4a) of an output-side changeover switch (4); and a right-handed/left...
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JP6805188B2 |
According to one embodiment, a detector is disclosed. The detector has a mechanism with first and second vibrators which vibrate in first and second directions. Circuits detect output first and second signals conforming to the detected p...
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JP6805186B2 |
An electronic device comprises - a first capacitor (C1) being coupled in series to a first one-way conductor (D1), that allows current flow in one direction, and the first one-way conductor (D1) and the first capacitor (C1) being coupled...
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JP6798242B2 |
A phase shifter includes a first variable amplifier circuit configured to receive and amplify a first signal having a first phase; and a second variable amplifier circuit configured to receive and amplify a second signal having a second ...
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JP6797929B2 |
A phase interpolator implemented in an integrated circuit to generate a clock signal is described. The phase interpolator comprises a plurality of inputs coupled to receive a plurality of clock signals; a plurality of transistor pairs, e...
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JP6795452B2 |
To provide a distribution switch having the ON/OFF ratio higher than conventional one in a high-frequency region.The distribution switch comprises: a signal line T1 having one end connected to an input terminal IN and the other end conne...
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JP6792467B2 |
The present invention provides a signal processing device capable of resolving a phase shift of an output signal with respect to a signal. Therefore, the signal processing device according to the present invention is configured to includ...
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JP6785851B2 |
Methods and systems for impedance matching between loads and power generators are provided. The methods include: supplying a power generated by a power generator to a load by an impedance matching system that includes at least one reacta...
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JP6771695B2 |
A first input terminal (11) is connected to a point of connection of a drain terminal of a first transistor (1) and a gate terminal of a fourth transistor (4). A second input terminal (12) is connected to a point of connection of a drain...
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