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Matches 451 - 500 out of 952

Document Document Title
JP08075876
PURPOSE: To provide stable pulse phase difference data of a plurality of pulse signals sent at irregular timing. CONSTITUTION: A first pulse signal PA and a plurality of detected pulse signals PB at different timing are sent to a pulse p...  
JP08079323
PURPOSE: To obtain a clock phase detection circuit in which a clock phase at a sampling time is detected from a digital modulation signal having only a specific frequency component. CONSTITUTION: A chirp conversion circuit 2 applies chir...  
JP08021856
PURPOSE: To provide a synchronization type signal detecting device capable of measuring a high-speed phenomenon with good accuracy and capable of being miniaturized. CONSTITUTION: The measured signal II is received by a conductive detect...  
JP07311228
PURPOSE: To provide a phase-difference detecting circuit, wherein the phases of an inverter and a commercial power supply are aligned. CONSTITUTION: An inverter output-voltage waveform Vi is subtrated from a commercial voltage waveform V...  
JP07283722
PURPOSE: To provide a digital control type PLL device and also to provide a pulse generator and a frequency variable oscillator which are suitable to construct the PLL device. CONSTITUTION: A PLL device divides a data obtained by coding ...  
JP07245876
PURPOSE: To perform the outputting of the desired power factor of an inverter tied to a power system wherein its high-power-factor control is included too, without the deterioration of the characteristic of the function whereby the conti...  
JP07239240
PURPOSE: To raise a sampling frequency without lowering the amplification degree of the signal cycle to enhance the detection accuracy in a physical quantity detection device wherein a physical quantity is converted to variation of a cyc...  
JP07225250
PURPOSE: To provide a phase detector by which accurate detection values can be obtained. CONSTITUTION: This detector detects an unknown phase by using detection signals which have a cycle T1 and change against the unknown phase in a sine...  
JP07225249
PURPOSE: To obtain a detector for amplitude and phase by which the amplitude and phase of AC signal can be detected at a high speed without phase delay. CONSTITUTION: The frequency of AC signal v detected by a AC signal detecting means 4...  
JP07219668
PURPOSE: To decrease the number of data in the data table while securing necessary precision by compressing the data so that an input data range corresponding to the same output data becomes wider as an input increases. CONSTITUTION: Whe...  
JP07183800
PURPOSE: To simltaneously and highly accurately perform the coding of the phase difference of plural pulse signals or frequency conversion by using a ring oscillator constituted by connecting plural inversion circuits as one delay device...  
JP07181234
PURPOSE: To provide a device for inspecting a skew between two clock signals among a plurality of clock signals having the same frequency. CONSTITUTION: Two clock signals as each pair of possible clock signals CK1 to CKn respectively ena...  
JP07174798
PURPOSE: To display the correlation of two signals with an arbitrary frequency and waveform using a pattern peculiar to the combination of the signals with a simple circuit configuration. CONSTITUTION: Two input signals A and B are compa...  
JP07177007
PURPOSE: To obtain a phase comparator with wide phase comparison range and easy to reduce the number of circuit elements. CONSTITUTION: A period where the difference of logic level between a first digital signal and a second digital sign...  
JP07159458
PURPOSE: To accurately detect the phase change of received signals by detecting whether the received signals lead or lag to a reference signal in phase in addition to the phase difference of the received signals against the reference sig...  
JP07154256
PURPOSE: To provide the A/D converter correcting a digitized error caused by fluctuation of an operation condition by itself and the physical quantity detector provided with the A/D converter. CONSTITUTION: A physical quantity detector d...  
JP07131972
PURPOSE: To make it possible to obtain a synchronous phase signal by quickly following up to a sudden change in the voltage phase of an AC power supply by controlling the slope of a second triangular wave signal in such a manner that the...  
JP07120511
PURPOSE: To realize a digital phase indicator which can stably operate and correctly display even if waveforms include noise or difference in voltage and current amplitude exists. CONSTITUTION: The digital phase indicator comprises range...  
JP07110349
PURPOSE: To make it possible to measure a phase difference in the display range of 0 to 360° by executing computation on the basis of the phase difference determined by a digital signal processor (DSP) and a leading or lagging phase sig...  
JP07099450
PURPOSE: To provide a phase difference coding circuit by which a the number circulation is counted at one location. CONSTITUTION: A NAND g00 and inverters g01-g62 are connected in series and an output of the inverter g62 and a pulse PA a...  
JP07077544
PURPOSE: To lessen the electric power loss of a port by installing a power divider and a phase shift circuit and using a part of a plurality of detectors as matching detectors and the rest as unmatching detectors. CONSTITUTION: A signal ...  
JP07043404
PURPOSE: To enable highly accurate detection of a phase difference between an optical signal and an electrical signal by computing a product of a voltage signal and the optical signal with a photoconductive type photodetector directly to...  
JP07035793
PURPOSE: To obtain a compact and inexpensive phase detection circuit by reducing circuit scale in reading a phase difference of AC waveform into a microprocessor. CONSTITUTION: A phase detection circuit is provided with first and second ...  
JP07030429
PURPOSE: To improve the response up to binary encoding by making it possible to deal with the counted values or the like of the upper and lower bits of a binary digital signal expressing a pulse phase difference. CONSTITUTION: A ring osc...  
JP07022941
PURPOSE: To obtain a regenerated clock that follows input data by controlling the edge position of the regenerated clock in a regenerated clock generating means so as to be one-sidedly forwarded or delayed to the edge of the input data. ...  
JP07012864
PURPOSE: To allow highly precise harmonic-free detection of phase difference through simple circuitry by dividing an AC voltage through a resistor and a capacitor and measuring the phase difference of an object through the use of the div...  
JP07012863
PURPOSE: To allow highly precise harmonic-free detection of phase difference through a simple circuitry by connecting a resistor and a capacitor in series with an AC power supply and detecting the time width corresponding to the phase di...  
JP07007841
PURPOSE: To detect the ground fault of an isolated or high-resistance-grounded three-phase one-circuit transmission line with a phase voltage detector installed to one phase and, at the same time, to detect the ground-fault phase. CONSTI...  
JP07005216
PURPOSE: To achieve an easy to read display of a phase difference. frequency ratio and a phase lead and lag of a cyclic signal with respect to a reference signal. CONSTITUTION: Reference signals A1 and B1 shifted by 90° in phase are inp...  
JP06351261
PURPOSE: To allow phase detection of output current from a general purpose inverter having no circuit for detecting the phase of output current by externally providing a simple circuit. CONSTITUTION: An output current detection circuit 4...  
JP06300796
PURPOSE: To prevent an erroneous operation by toggling an FF when a counter for measuring a time width of a signal overflows, interrupting a calculator by a Q output of the FF, and overflow-processing it. CONSTITUTION: A carry terminal O...  
JP06284578
PURPOSE: To detect a step-out state without using a threshold, value by measuring power and voltage and detecting an oscillatory phenomenon in power system. CONSTITUTION: A measuring unit 1 is used for measuring active power and effectiv...  
JP06284014
PURPOSE: To make a delay time uniform due to a signal line and obtain uniform time resolution by setting signal line load capacitance to which plural delay elements are connected equivalent. CONSTITUTION: The NOT AND circuit NAND which i...  
JP06273463
PURPOSE: To compute a correlation by using an optical system and to simply and quickly find a phase in an M-series by adopting the logical sum of the computations of correlations in both M-seires. CONSTITUTION: When a correlation functio...  
JP06222092
PURPOSE: To provide a phase digitizer which has got rid of demerit inherent in a conventional phase digitiser, by using a trigger circuit. CONSTITUTION: A phase digitizer 20 to convert phase information of analog signal into digital indi...  
JP06216721
PURPOSE: To improve a detection speed without deteriorating the detection resolution of a pulse phase difference by this ring oscillator by connecting even pieces of inversion circuits like a ring, and revolving stably a pulse edge. CONS...  
JP06160453
PURPOSE: To provide a method for evaluating phase comparators by which a phase comparator can be evaluated by extremely easily deciding the output state of the phase comparator in a DC sense without making any special circuit change. CON...  
JP06148295
PURPOSE: To provide a making capacity testing circuit capable of supplying a making current having predetermined DC component content in the min. number of times and arbitrarily setting the phase order of a current in a three- phase test...  
JP06109782
PURPOSE: To provide a circuit for detecting voltage applied to a measurement object and a time interval corresponding to the phase difference of current flowing through the object, using the less quantity of parts including transistors, ...  
JP06066854
PURPOSE: To precisely measure a phase difference even when the frequency of a standard signal is fluctuated in a phase difference measuring circuit of synchronous rectifying system for detecting the fluctuation of phase of a signal compo...  
JP06058965
PURPOSE: To obtain a highly reliable phase meter constituted of cheap electronic components. CONSTITUTION: The apparatus for measuring phase difference between two AC signals (v), (i) having same frequency comprises a measuring frequency...  
JP06051003
PURPOSE: To make it possible to effectively scan and detect the output signal of a phase measuring circuit by differently subsequently prpcessing comparison signals divided into two groups based on the phase positions of the clock pulses...  
JP06043193
PURPOSE: To reduce the capacity of ROM. CONSTITUTION: Encoded digital signals (n-BIT) I, Q crossing each other at a right angle of two axes are inputted to an abs. value calculator 1 and abs. value data I', Q' are inputted to an address ...  
JP06034684
PURPOSE: To obtain a digital phase difference detection circuit which can initially set a phase difference signal and can determine the advance and delay of phase. CONSTITUTION: The title circuit is constituted of a phase comparator 10 w...  
JP06011527
PURPOSE: To ensure excellent linearity between a pulse phase difference and a detection output by preventing variation in delay time of a delay gate. CONSTITUTION: Delay blocks 1A and 1B are formed by connecting delay gates 11, 12a and 1...  
JP06006212
PURPOSE: To provide a phase comparator circuit which has the small power consumption and the high resolution by adding a 2nd pulse generating circuit and a counter to the phase comparator circuit. CONSTITUTION: The 2nd pulse generating c...  
JP06003388
PURPOSE: To detect the phase difference between two AC Inputs speedily and accurately with an inexpensive configuration by sampling first and second AC input values at each specified sampling frequency. CONSTITUTION: A sampling means 41 ...  
JP06003389
PURPOSE: To detect a phase error simply and accurately without using an expensive measuring instrument. CONSTITUTION: The device 1 is provided with a conversion transformer 3 for current and a conversion transformer 4 for voltage for tak...  
JP05346446
PURPOSE: To obtain a phase meter for measuring phase accurately and stably by automatically selecting an appropriate phase measuring range depending on the phase difference of input signal. CONSTITUTION: The phase meter for measuring the...  
JP05340976
PURPOSE: To determine phase difference highly accurately regardless of input noise by detecting predetermined point of phase for different input signals and then determining phase data of each input signal based on the detected signals a...  

Matches 451 - 500 out of 952