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JPS5831615A |
PURPOSE: To obtain a phase comparison circuit without DC offset, by connecting a current switch which is conductive only when the 1st input signal is at a specific polarity, to a differential pair transistor(TR) which performs differenti...
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JPS5831616A |
PURPOSE: To obtain a phase difference output without DC offset, by setting the operating point so that no current flows to the collectors of differential pair transistors(TR), when no input signal is given to the TRs. CONSTITUTION: Two d...
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JPS5810018B2 |
A high gain digital phase comparator which in digital phase lock loop systems can give a thousand-fold reduction in ripple and close-in noise sideband amplitudes. The comparator is of the sample-and-hold type but the normal ramp referenc...
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JPS589383B2 |
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JPS5826276A |
According to the invention, on the basis of a logic signal of frequency F a multiplier processes a signal of frequency 4F sampling a A/D converter, which supplies at its outputs the digital values and a bit representing the sign of sin O...
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JPS587925B2 |
A system such as a flow velocity measuring system relies upon obtaining a signal having a slight phase difference from a carrier signal, due to a change in signal circuit characteristic. The disclosed arrangement provides highly sensitiv...
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JPS5824866A |
PURPOSE: To achieve an accurate detection of phase angle range by detecting as such that the zero level of a differential voltage between two voltage signals from a separate smoothing of a rectified outputs of first and second rectifiers...
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JPS585612B2 |
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JPS5810665A |
PURPOSE: To enable detection of a phase difference without delay in time by counting a gradually-multiplied output of a reference signal during each period of the phase difference by using, as set and reset signals, the outputs obtained ...
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JPS5759991Y2 |
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JPS5759942B2 |
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JPS5758853B2 |
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JPS5757340Y2 |
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JPS57200867A |
PURPOSE: To improve responsiveness and a detecting property, by obtaining an output depending on a difference in phase of a phase detecting signal and a reference phase. CONSTITUTION: A measuring output of a counter 100 is compared with ...
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JPS57200868A |
PURPOSE: To enable discrimination of the phase and frequency difference by comparing output signals according to a reference phase signal and a phase detection signal to retain the output at a specified value. CONSTITUTION: Repetition pe...
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JPS57191565A |
PURPOSE: To obtain a power method circuit for phase difference which can be utilized effectively for the -cos conversion, etc., of a power factor transducer, by providing plural lines of multiplying circuits each consisting of a switch c...
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JPS5754749B2 |
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JPS57183224A |
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JPS5751906B2 |
Phase comparison apparatus, for example for use in phase lock loop (PLL) systems, comprises a first and a second phase comparator. The first comparator has a high gain (e.g. 1000) and a narrow phase difference range (e.g. 5 DEG ) and the...
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JPS57176869A |
Tone detection circuitry including tone decoder providing a free running frequency determined by timing resistance and timing capacitance connected to it. A control means including a programmable microprocessor establishes a retrieval re...
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JPS57171576U |
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JPS5750258B2 |
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JPS57168933U |
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JPS5748746B2 |
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JPS5748745B2 |
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JPS5747856B2 |
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JPS57162983A |
According to the method, current blocks of the stator currents are transformed into square waves of constant amplitude and the current blocks of the stator currents are extended to 180 DEG el. Fundamental components are filtered out from...
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JPS5746251B2 |
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JPS57156871U |
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JPS57156622A |
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JPS57156623A |
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JPS57154068A |
PURPOSE: To prevent occurrence of an erroneous operation even when waveform distortion is generated in the inputs of a plurality of AC electricity quantities by a method wherein waveform processing after extraction of the condition of ph...
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JPS57149970A |
PURPOSE: To exercise stable phase comparison control even during a period when a phase difference between two input signals is extremely large, by performing switching to an output voltage similar to that during phase coincidence if the ...
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JPS57144072U |
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JPS57144470A |
PURPOSE: To raise the resolution in case when a phase difference is small, and to elevate the detection accuracy, by providing the waveform shaping outputs of 2 input signals to an exclusive OR circuit, and detecting the width of its out...
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JPS57144471A |
PURPOSE: To detect the phase and amplitude of an AC signal at a high speed and with high accuracy, by deriving the correlation of an input AC signal by plural reference signals whose phase only is different, respectively. CONSTITUTION: A...
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JPS5739812Y2 |
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JPS57128247U |
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JPS5734463Y2 |
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JPS5735428B2 |
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JPS57120266U |
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JPS57116263A |
A slowly varying bias signal is added to one input of a Wave Form Transition Sequence Detector, as more fully described in a related application cited herein, to provide a differential output therefrom which is directly proportional to t...
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JPS57116265A |
PURPOSE: To detect the change in the rotary angle of a shaft in the form of a signal based on the presence or absence of holes on discs, in the device wherein the synchronizing state between the systems which are commonly provided in an ...
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JPS5733551B2 |
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JPS5732455Y2 |
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JPS57113718A |
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JPS57111461A |
PURPOSE: To improve the phase linearity to a signal having a wide dynamic range, by tracking both the rise and fall zero cross points of an input signal and accordingly eliminating the phase tracking error caused by a distortion of the w...
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JPS5797323A |
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JPS5797458A |
PURPOSE: To perform the digital display of a phase difference between two signals having the same frequency with simple constitution by using a dual slope type analog/digital converter which uses the same reference voltage source in comm...
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JPS5797324A |
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