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JPH0244910A |
PURPOSE: To prevent a pulsating state from appearing in an output signal even with an increased response speed by forming a signal processing section with two shaping circuits. CONSTITUTION: A waveform shaping circuit 11 receiving a puls...
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JPH0237827A |
PURPOSE: To demodulate and multiply a PWM signal at the same time by counting up/down reversible counters in accordance with the rise/fall of the PWM signal and controlling a frequency to be enabled to count by the enable signal of a pul...
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JPH021965Y2 |
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JPH02840U |
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JPH0156462B2 |
A circuit for the decoding during reading of data prerecorded on a magnetic medium comprising a circuit for recognition of the recording code of the data recorded on the support by the recognition of the frequency of an input signal gene...
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JPH01272225A |
PURPOSE: To eliminate the quick current change, to prevent the occurrence of noise and to prevent the malfunction of a circuit by using a triangular wave at the time of signal processing. CONSTITUTION: A square wave signal Vin(Va) having...
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JPH01132151U |
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JPH0136734B2 |
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JPH0132688B2 |
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JPH0130329B2 |
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JPH0119453Y2 |
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JPH01138809A |
PURPOSE: To generate a pulse width modulation signal with high resolution using a low frequency clock signal by providing 1st and 2nd pulse width modulation circuits and a logic circuit applying AND operation of 1st and 2nd modulation si...
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JPH0164226U |
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JPH01106519A |
PURPOSE: To eliminate the need for phase matching between a jitter modulation signal and a reference clock by using a high pass filter so as to filter the offset component of a reference clock due to phase difference and a jitter modulat...
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JPH0191520A |
PURPOSE: To improve the speed of a circuit by providing a current directioning circuit for not allowing currents to run, or allowing currents in a first or second level to run through a dropping resistance in response to a pair of input ...
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JPS6471213A |
PURPOSE: To obtain a frequency-voltage conversion circuit with fast response by combining a function generator and a sample and mold circuit so as to obtain a voltage proportional to an input frequency in one period. CONSTITUTION: A sync...
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JPH0114734B2 |
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JPS6467030A |
PURPOSE: To reduce the period of a PWM wave without reducing the reference clock period and without decreasing quantized bit number of binary information by dividing the binary information for PWM wave generation into plural bit groups s...
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JPS6454502A |
PURPOSE:To output a pulse width modulation control signal which is not superposed hourly to plural kinds of DC loads, by providing two kinds of comparators for detecting whether a voltage of a fundamental frequency is low or not, and out...
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JPS6454271A |
PURPOSE: To achieve a higher response characteristic with a widened dynamic range, by a method wherein the cycle of an input signal is counted by a clock and a voltage inversely proportional to the cycle is generated to reduce ripples at...
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JPS6430942U |
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JPS6444107A |
PURPOSE: To widen the operating range of an input frequency by using a clock signal obtained from a clock signal generating circuit so as to control a waveform shaping circuit. CONSTITUTION: In applying a frequency waveform to an input t...
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JPS647699B2 |
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JPS644375B2 |
A switching circuit with MOS field effect transistors includes a DC voltage source having first and second terminals, first and second MOS field effect transistors each having gate, source, drain electrodes and a substrate, a circuit for...
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JPS643372B2 |
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JPS648829U |
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JPS641801Y2 |
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JPS648557A |
PURPOSE:To obtain an audio signal suppressed in its carrier component even in case of a slower tape speed than recording by converting a reproduced RWM signal to a saw tooth signal and holding a sample as well. CONSTITUTION:The peak valu...
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JPS63314019A |
PURPOSE: To reduce the generation of distortion in a demodulation signal, by connecting a resistor between an input terminal and an output terminal, connecting one end of a capacitor to the output terminal, and connecting a constant curr...
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JPS63298125A |
PURPOSE:To obtain accurate pulse width information even if an optical pulse level is fluctuated, in a receiver for the optical pulse having the information in the pulse width, by measuring a time interval between the differential output ...
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JPS63169708U |
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JPS63163088U |
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JPS6351574B2 |
A frequency/voltage conversion circuit is provided with a detection circuit for determining when the input frequency rises above a predetermined level which threatens to inhibit operation of flip-flop devices in the circuit. In response ...
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JPS63228076A |
PURPOSE: To accurately measure the period of a signal without increasing a sampling frequency by detecting the zero point of the signal in sampling cycle units, and calculating a frequency error by using amplitude values at two points on...
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JPS63142920U |
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JPS63142921U |
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JPS6334352Y2 |
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JPS63136433U |
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JPS63204144A |
PURPOSE: To convert an AC square wave voltage signal into a smooth DC voltage signal, by applying the AC square wave voltage signal and a DC reference voltage to a non-inverting input terminal of an operational amplification section whil...
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JPS63204159A |
PURPOSE: To hold a property of following changes in input frequency while removing a ripple component of an output voltage, by connecting a variable cut-off frequency low-pass filter to an output of a frequency/voltage converter. CONSTIT...
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JPS63189012A |
PURPOSE: To reduce a circuit scale and power consumption, by generating a mean value proportional to an original signal on an amplitude axis from a pulse forming FM modulation signal by using a chopping wave generation circuit. CONSTITUT...
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JPS63117117U |
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JPS63113325U |
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JPS63172516A |
PURPOSE: To decrease thermal resistance noise in a PWM output circuit by connecting a PWM signal to an integrator imaginary ground point comprising an operational amplifier via n-set of PWM output logic circuits and current resistors. CO...
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JPS63105880U |
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JPS6328381B2 |
A frequency demodulator including an "exclusive-OR" circuit receiving two square-wave signals having a frequency corresponding to a frequency-modulated signal, and a delay circuit for delaying one of the square-wave signals before applic...
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JPS63133071A |
PURPOSE: To compensate offset voltage and to reduce an error even when an input current value is minute, by detecting the offset voltage of the operational amplifier in an integration means to apply the same to the non-reversal input ter...
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JPS63122967A |
PURPOSE: To obtain a converter which lets an output voltage respond instantaneously to changes in the frequency, by performing a frequency-voltage conversion of an AC signal inputted while an output voltage thus converted is differentiat...
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JPS63122966A |
PURPOSE: To obtain a converter which lets an instantaneous output voltage respond to changes in the frequency while reducing a ripple, by adding a differentiation response waveform to correct a delay in the rising of an output voltage su...
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JPS6365307U |
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