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Patent Searching and Data


Matches 451 - 500 out of 2,047

Document Document Title
JP3062880B2  
JP3055225B2  
JP2000507343A  
JP3050383B2  
JP2000151395A
To provide a phase comparator which makes it difficult to generate a dead zone in error detection characteristics, even if an error detection range varies relatively. Error signals UPB and DWB are varied in level with a reference signal ...  
JP3042026B2  
JP2000134272A
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...  
JP2000505547A  
JP2000121387A
To provide a detecting method for the phase angle of a position transmitting apparatus, in which a high-accuracy measured result can be obtained stably for a long period.A sine signal U0 (α)=A.sinα and a cosine signal U1 (α)=A.cosα a...  
JP2000101426A
To attain phase synchronization in a short time, even when frequencies in the circuit are set apart from each other by applying a modification taking a frequency difference into account to a phase error signal.A jump detection section 30...  
JP3052691B2
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...  
JP3052441B2
PURPOSE: To obtain a phase difference measurement device which has no restric tion of measuring range and takes one period of measured signal for the response speed. CONSTITUTION: Measured signals A1 and A2 are converted with wave rectif...  
JP3050976B2
PURPOSE: To make it possible to continue to supply power safely to load by sensing quickly a system disturbance and even if the system disturbance is caused by ground fault, and separating a power converter including load from a commerci...  
JP3048467B2
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 ...  
JP2000077990A
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...  
JP2000076667A
To shorten a processing time with a less memory and simple circuit constitution by calculating a first phase difference from prescribed bits of respective first bits of first and second digital signals and calculating a sine wave compone...  
JP2000078743A
To inhibit an effect by the mixing of an abnormal data before a fault by obtaining one AC electric quantity, by using a stable value to fluctuation from frequency and an amplitude value before the generation of disturbance to a fixed tim...  
JP3019422B2  
JP3042481B2
To provide a delay difference adjustment circuit in which a difference from delays through a plurality of signal lines is corrected without relying on manual operation. A device is provided with a delay adjustment circuit 22 that applies...  
JP3011489B2  
JP3029897B2
PURPOSE: To prevent the fault of the operation of a power converter caused by the synchronous operation because the phase difference is regarded as 0 degree even though the actual phase difference is 180 degrees. CONSTITUTION: Even thoug...  
JP3027692B2
PURPOSE: To simplify the configuration of a controller by accurately detecting the phase difference of two signals with a slight phase difference and at the same time, using a phase difference detection circuit. CONSTITUTION: The phase d...  
JP3003042B2  
JP3000775B2  
JP2000004123A
To calculate and obtain the value of the absolute phase difference between two digital pulse signals which vary in frequency synchronously with each other by inputting those signals. A digital pulse signal 21 inputted to an input termina...  
JP2000004148A
To provide a phase detector and a phase-locked loop circuit device which accurately detect an error value due to the relative phase between a local oscillation signal and an input signal received on a PR (a, b, a) channel. This phase det...  
JP2995769B2  
JP2991238B2  
JPH11337598A
To make the time resolutions coincide with each other for every pulse phase difference encode circuit in a pulse signal processing device having a plurality of pulse phase difference encoding circuits encoding the pulse phase difference ...  
JPH11339029A
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 ...  
JPH11337625A
To provide a method for inspecting an IC, wherein with an effect on manufacturing cost being suppressed, the probability of operation of a circuit mounted on a substrate within an intended environment is increased. A test signal is trans...  
JP2980267B2  
JPH11312986A
To enable more precise phase detection by reducing disturbance of an impedance in inserting a phase detector into a coaxial line. A phase detector is provided to an input part of a tuning/ matching circuit of a high frequency transmissio...  
JP2972803B2  
JP2970412B2  
JPH11289249A
To provide a phase detection circuit of which output has linear relation with the phase difference of an input signal even when the phase difference exceeds 360°. A phase adjusting circuit 21 periodically adjusts the phase of a referenc...  
JPH11287830A
To automatically measure in a high accuracy the phase difference component of sign wave signal with a simple device constitution, by processing a detected waveform and a reference waveform respectively, obtaining a real part analysis sig...  
JP2988130B2
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...  
JPH11266237A
To provide a phase difference monitoring circuit, capable of reducing a circuit scale on condition that the phase difference of a present device frame pulse and a reception frame pulse is not so large. This phase difference monitoring ci...  
JPH11252060A
To easily determine the propriety of relative phase relations between logical data and synchronous clock signals. A decision circuit 3 can detect a deficient hold time by comparing the data level states of logical data (c) set at the ris...  
JPH11248765A
To provide a phase measuring apparatus by which the absolute value and the polarity of a phase difference can be detected, which can generate a phase- difference measured output to be changed continuously with reference to a continuous c...  
JP2949295B2  
JP2946675B2  
JP2941276B2  
JPH11220367A
To obtain a circuit capable of extending a pulse width by allowing first and second edge detecting circuits to detect the respective rising and falling edges of two pulse signals, starting integrating operation when the first edge detect...  
JP2932619B2  
JPH11211764A
To provide a time-potential difference converter for converting a phase difference of two pulse signals into a potential difference with a simple circuit configuration. The time-potential difference converter for converting a phase diffe...  
JPH11211765A
To accurately measure a fine phase difference of a plurality of signals with a simple circuit comparing by comparing the output voltage of an integration circuit with that of another integration circuit and outputting a signal correspond...  
JPH11206173A
To enable position detection with high precision, by reading phase detection value synchronously with write timing of a phase signal, and adding a correction value proportional to a velocity to the detection value. A voltage phase signal...  
JP2940662B2
To measure the periodically changing alternating current waveform with high accuracy even when it is disturved. In a phase-shift detecting method, a standard time interval given by integer times the period is determined, (1) the time fro...  

Matches 451 - 500 out of 2,047