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Matches 201 - 250 out of 951

Document Document Title
JP2005033848
To calculate a phase angle precisely at each part of a power system even when the voltage deviates significantly from a rated value or when a transmission loss can not be neglected.Phase angle calculation routes are made from two specifi...  
JP2005003530
To continuously, appropriately at high speed, and stably precisely detect the phase of a single-phase AC system voltage.This phase detector has a phase shift means 6 for forming a signal having a phase different from that of the single-p...  
JP2004325162
To provide a phase measuring apparatus for detecting the phase difference between transmission units by wireless, and to provide a cosmic solar generation system using the apparatus.In the phase measuring apparatus applied to the system ...  
JP2004320613
To provide a performance measurement system and method capable of measuring the time axis fluctuation in a converter between an analog signal and a digital signal, etc.Conversion between the analog signal and the digital signal is execut...  
JP2004309472
To calibrate balanced signals so as to create appropriate phases with respect to desired phase settings.The electric power difference between the balanced signals is measured. A level acquired as a result is used to control the phase bet...  
JP2004301550
To provide a highly-accurate and noise-resistant operation device of a power related quantity and a phase angle, not using a zero cross point.This device has a constitution equipped with power operation means 17A, 18A, 19A for operating ...  
JP3605022
To provide a phase comparison circuit with a small number of components. Input signals Vin1 and Vin2 are input to a first and second input terminals 11 and 12, respectively. When Vin2=V1, an output terminal 13 is turned into a low level ...  
JP2004239860
To provide a phase difference measuring circuit capable of measuring phase difference between the signals to be measured by a DC voltage value, with no direct observation with instruments such as an oscilloscope with an intervention of a...  
JP2004242317
To provide a frequency multiplier and multiplication method with which a duty cycle of a clock can be adjusted.The frequency multiplier is equipped with a delay circuit for receiving a first clock to output a delay clock resulting from d...  
JP2004205346
To solve the problem that, when a CPU having a small capacity is used, the burden becomes heavier at the time of continuously measuring the phase difference between two input signals at a plurality of spots and averaging the measured pha...  
JP2004198153
To provide a phase comparison circuit capable of detecting a phase difference between signals outputted from coils of a toner detecting magnetic sensor.This phase comparison circuit 26 is composed of: an XOR gate 200 for comparing phases...  
JP2004184300
To provide an AC signal phase detecting arrangement of low cost which does not require expensive transformer for insulation.The voltage of an AC power supply 7 is converted into a rectangular form wave by a photocoupler 10 and is inverte...  
JP3568099
To provide a digital phase information generating device for generating plural kinds of arbitrary phase information. An adder 1 adds a phase progress input X and the output of a selecting device 4. A holding device 2 holds the output of ...  
JP3566174
To perform the exact edge arrangement of high resolution without requiring a system clock of a frequency extremely higher than the frequency of a synthetic clock signal. This device is composed of a system clock signal source for a syste...  
JP3561119
To constitute a synchronization controller which is not affected by the distortion and unbalance of AC signals of software using a microprocessor, etc. Three-phase AC signals are synchronized to the output of a frequency divider by means...  
JP2004132824
To provide a delay measuring mechanism in an LSI chip capable of precisely measuring a delay amount of a delay element in the LSI chip.A delay element cycling pulse generating part 1 generates a cycling pulse according to the delay amoun...  
JP3546013
To reduce a scale of a circuit of a signal processing device for measuring pulse intervals of plural input signals. First through third signals 101-103 are time-divisionally selected, and an increment value stored in an address correspon...  
JP3541345
To easily measure and adjust quadrature modulation waves and to reduce excessive circuits mounted on a substrate as much as possible. In the quadrature modulation circuit board 5 of a double conversion system, the monitor output of respe...  
JP3540797
To solve such a problem (that measuring precision gests worse in &verbar a1&verbar <&verbar a2&verbar when a complex amplitude ratio W=a2/a1 of two waves a2, a1 is found) in a 6-port type correlator of a highly precise and a simple phase...  
JP2004061339
To make a phase detector actualizable phase detection without using a second clock of a different frequency.N-pieces of midway nodes CK1(1) to CK1(N) made by N-dividing a delay circuit 1 using a basic clock 1 as input are used as clock i...  
JP2004029032
To provide a device which detects frequencies without using phase detectors and counters.In the device, values of voltage VR, VS and VT of a three-phase AC power source are converted into values of voltage Vd, Vq on d-q axes rotation coo...  
JP3508718
To accurately detect an amplitude of an input sine wave shaped signal by a simple composition. An analog signal including a sine wave signal Ax.sin(2πFt+ψ) of a frequency the same as a known reference analog sine wave signal A0.sin2πf...  
JP3507838
To detect the phase of a power fundamental wave in real time for following. A programmable timer 19 generates a trigger with a timing where one wavelength section of the current or a voltage of a power fundamental wave is divided into N ...  
JP2003344465
To detect a phase difference at a high speed between a traveling wave and a reflected wave, for example. A signal generation step is executed for generating generated signals Sf1 and Sf2 of the same frequency but different from each othe...  
JP2003315395
To improve the practicality by expanding a measuring range of phase difference by a phase comparator, having a phase comparison range of 180 degrees, to 360 degrees.A first phase comparator 9 compares the phases of reflected wave B gener...  
JP2003287555
To provide a phase noise measurement method whose measurement accuracy is improved and to provide a phase noise-measuring apparatus using the method.In the phase noise-measuring apparatus that has a PLL circuit and an analysis section fo...  
JP3481065
To prevent the malfunction of a circuit in a DLL(delay locked loop) circuit using a high speed clock signal by comparing the phases of output signals of first and second control circuits frequency-divided according to a third signal. A f...  
JP3479055
To provide a device which is capable of exactly detecting jitters for detecting jitter quantities from signals at two sampling points around an edge which are subjected to analog/digital conversion, and to provide a phase synchronizing l...  
JP2003279606
To provide a method for measuring a phase of a substantially sinusoidal signal which can be implemented in the form of a simple digital circuit of a small surface area and which can use a sampling frequency only slightly greater than a m...  
JP2003270277
To provide a means for easily, simply, quickly and accurately calculating instantaneous reactive power and a reactive power effective value and provide a method for measuring them.Instantaneous values of a voltage V(t) are sampled from t...  
JP2003258557
To provide a phase shift detection apparatus capable of surely detecting a phase shift between two phases of a 2-phase oscillator having two DDS (direct digital synthesizer) oscillators without the need for a DC voltmeter with high preci...  
JP2003250296
To reduce an influences in current ripples due to switching of power transistors in an inverter.The inverter comprises power transistors in bridge configuration and a feedback diode connected in parallel with the power transistors. The i...  
JP3464792
To easily visually grasp the phase relation between the stator winding and rotator magnetic pole of a synchronous motor. When the phase difference angle generated between the stator winding and rotor magnetic pole of the synchronous moto...  
JP3463575
To provide a phase comparator which consists of a full digital circuit of high performance at a low cost. An exclusive OR is secured via an exclusive OR gate 22 and accordingly the phase difference value is detected for the signals which...  
JP3460145
To provide a frequency measuring apparatus in which a frequency can be measured in real time by a digital processing operation. A signal conversion part 21 comprises an A/D converter and an orthogonal demodulator, it converts a signal S ...  
JP3455982
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...  
JP2003215183
To solve such a problem (that measuring precision gests worse in a1
JP2003194954
To discriminate the type of precise charged particles and accurate energy, to enable the accurate measurement of a charged particle having high energy, and to detect a fault in a measuring apparatus to continue observation in a mode corr...  
JP2003194863
To provide a power swing detecting device for an electric power system capable of surely detecting the power swing generated among a group of power generators at both sides of a connection line of the electric power systems regardless of...  
JP3441169
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...  
JP3438342
PURPOSE: To obtain a pulse phase difference encoding circuit of which the range of errors is uniform and the precision is excellent. CONSTITUTION: This circuit is equipped with a pulse circling circuit 10 formed of a large number of inve...  
JP2003163708
To detect the displacement of a phase at high speed in simple configuration.A phase area detecting means 21 finds one of a plurality of angle areas E(0)-E(M-1), M equals to three or more obtained by equally dividing the angle range of 2...  
JP3424990
PURPOSE: To output control signal of the same pulse width independently of a lead phase of any clock signal so long as the phase difference between two clock signals is the same. CONSTITUTION: N-channel MOS TRs 2, 3 are connected in para...  
JP2003104826
To provide a W/O/W composite emulsion having excellent stability with time and a feeling of use, and especially usable in medicines or cosmetics.This W/O/W composite emulsion comprises (A) a silicone oil, (B) cholesterol and/or phytoster...  
JP2003098202
To provide a measuring device and method capable of attaining high speed, high accuracy, and low cost without influence of noise and spurious in measuring the phase delay characteristic between an input signal and an output signal of a t...  
JP2003098233
To realize an operation time measuring circuit capable of easily determining whether the time between a reference clock and an output data is contained in a target time or not in a small circuit configuration.This operation time measurin...  
JP3412015
To provide an in-station error compensating method capable of easily calibrating an in-station error based on any factor such as in-station delay, delay fluctuation, and frequency characteristics across the whole band of a reception sign...  
JP2003075479
To provide a time measuring apparatus capable of accurately measuring a very short time interval between edges a signal has.The tester 300 comprises a reference input signal generator 102 for generating a reference input signal having a ...  
JP3404538
To make a phase detecting filter circuit, smaller, lighter and at a lower cost as well as more reliable and more easily adjustable. This filter circuit comprises resistors, capacitors and reactors, an AC power voltage being added to a ci...  
JP2003066073
To provide a phase measuring instrument capable of performing a precise phase measurement and extending the phase measuring range, and a microwave densitometer using it.An up-down counter 2 performs, on the basis of various control signa...  

Matches 201 - 250 out of 951