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Patent Searching and Data


Matches 551 - 600 out of 2,132

Document Document Title
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...  
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...  
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  
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...  
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 ...  
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  
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...  
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...  
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...  
JPH11160373A
To attain a highly accurate phase measurement after making resolution of A/D conversion uniform and reducing the resolution. A to-be-measured sine wave signal is divided into two by a signal divider 10, and the phase of the second sine w...  
JPH11163696A
To know the frequency difference regardless of two clock phases by performing the comparison of frequency regardless of the relation between two clock phases and setting the output time of two detection signals in response to the frequen...  
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...  
JP2906176B2  
JP2904396B2  
JP2938360B2
PURPOSE: To easily and accurately detect the phase difference between light signal and electrical signal by directly calculating the product of a voltage signal and a light signal by a photoconductive type light receiver and detecting th...  
JP2900772B2  
JP2897795B2  
JP2896574B2  
JPH11142448A
To provide a phase difference detection circuit that is capable of detecting the characteristics of the phase difference between the windings of a velocity generator and of determining whether they meet criteria or not automatically. The...  
JP2895874B2  
JP2929888B2
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...  
JP2928485B2
To provide a phase comparator small in the blind sector of a phase difference, excellent in input/output characteristics and capable of being operated stably at a low power supply voltage. The phase difference of a reference clock signal...  
JPH11127075A
To realize a digital phase difference detection circuit where a data read timing is not restricted even when a phase difference of two waves is close to 360° in the digital phase difference detection circuit that detects a phase differe...  
JP2890152B2  

Matches 551 - 600 out of 2,132