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Patent Searching and Data


Matches 651 - 700 out of 952

Document Document Title
JP63188774
PURPOSE: To measure the current value and phase of a detection current with high accuracy by inputting the bipolar detection current to the input terminal of one LED when the detection current is in specific phase, and causing the LED to...  
JP63158485
PURPOSE: To reduce a phase error, by averaging the phase difference of a detection signal received without being passed through a delay circuit to the original detection signal and the phase difference of a detection signal received thro...  
JP63139259
PURPOSE: To always accurately measure the cycle of discrimination data, by providing a test data generating part, a cycle detection part, a cycle detector and a variable frequency oscillator. CONSTITUTION: A test data generating part 7, ...  
JP63132534
PURPOSE: To easily measure the propagation time difference between two routes by detecting the phase difference between a modulated signal passed through a 1st system to be measured and a modulated signal passed through a 2nd system to b...  
JP63119319
PURPOSE: To discriminate a phase at high speed by allowing a phase discriminating and 4-multiplied clock generating circuit to be an asynchronous circuit. CONSTITUTION: The phase discriminating and 4-multiplied clock generating circuit r...  
JP63100381
PURPOSE: To perform infinite phase detection with an ideal dynamic range by shifting the phase of a reference signal and following up the phase of a test signal and regarding the phase shift quantity as the phase difference between both ...  
JP63061963
PURPOSE: To measure a delay time with high accuracy by installing two counters and allowing them to count up when a clock signal rises and falls. CONSTITUTION: A differentiating circuit 2 which receives the output 23 of a comparing circu...  
JP63061171
PURPOSE: To continuously measure a phase with respect to all of angles, by providing a tracking converter part outputting the output of an incremental and decremental counter corresponding to the positive and negative of the output signa...  
JP63023416
PURPOSE: To detect a minute timing error by extracting a fundamental wave component and a prescribed harmonic component of an output signal of a differential amplifier receiving a pulse signal of the same frequency so as to detect the am...  
JP63013417
PURPOSE: To output a phase error always constant by providing a means extracting phase information, a means generating a control signal and a means controlling a phase error detection gain so as to select and output complex phase error i...  
JP63011869
PURPOSE: To enhance phase difference detection accuracy, by providing a frequency dividing means dividing the frequency of a gate output pulse and counting the frequency dividing pulse of said frequency dividing means. CONSTITUTION: The ...  
JP62274271
PURPOSE: To improve the efficiency and reliability of measurement by dividing the frequency of the output of an oscillator and generating clocks of plural phases, and synchronizing the switching timing of the clocks with the output switc...  
JP62274917
PURPOSE: To obtain a phase difference as a phase synchronizing signal for conversion to level by providing the first circuit, which generates the characteristic of an output pulse width to an input signal phase difference where there is ...  
JP62273467
PURPOSE: To output an alarm or the like immediately when any abnormality is caused, by arranging an input signal pulse detector, an output signal pulse detector, a delay time detector and a delay time discriminator to always monitor a de...  
JP62266472
PURPOSE: To enable the measuring of a phase difference accurately, handily and directly along with a cost reduction and a simplified measuring work, by using a digital data indicating instantaneous values of two AC quantities of electric...  
JP62250371
PURPOSE: To enable the calculation of a phase difference accurately regardless of its change occurring at the time of adjustment of a waveform, by identifying a 2-phase input signal with the specified threshold level and correcting a for...  
JP62218877
PURPOSE: To effect proper processing of a signal-processing circuit, by supervising a phase-difference condition between 2 synchronous signals of non- synchronization and of nearly the same frequency by comparing member, selector, counte...  
JP62204166
PURPOSE: To enable the selective execution of series type processing and parallel type processing by controlling the change over of switches and the phases of phase signals. CONSTITUTION: (a) and (c) as well as (b) and (d) of the switch ...  
JP62198771
PURPOSE: To correct a count error without using a clock of high repetitive frequency by dividing one period T of a clock equally by (m) and delaying a rectangular wave by T/m at every time. CONSTITUTION: A delay circuit 13 consists of m/...  
JP62196921
PURPOSE: To estimate correctly the difference of phase between the symbol timing of the analog demodulation signal and a reference clock regardless of the value of the input phase difference, by eliminating the discontinuous points of th...  
JP62187257
PURPOSE: To calculate a frequency to be extracted and the levels of an effective and an ineffective component by multiplying a quantity to be measured by sine waves and cosine waves of three phases as units and further multiplying the DC...  
JP62121368
PURPOSE: To know easily a phase difference of the second input signal by delaying the first input signal by a delay time of two kinds or more. CONSTITUTION: The first input signal is outputted by being delayed by times T1WT4, respectivel...  
JP62111518
PURPOSE: To expand the logic range of a phase control system without narrowing the control band by comparing the phase of a reference frequency division signal being the result of 1/N frequency division to a reference signal with the pha...  
JP62108163
PURPOSE: To operate the phase of a signal at a high operation speed, by reading out phase values corresponding to each point in the space of orthogonal coordinates, whose addresses are designated by two kinds of detecting signals and ope...  
JP62087874
PURPOSE: To make it possible to measure the phase of a signal to be measured with high accuracy, by mixing a reference signal with a first oscillation signal in a first frequency mixing circuit while mixing said signal with a second osci...  
JP62075271
PURPOSE: To improve measurement accuracy by holding a trigonometric function wave signal which is outputted from an oscillation circuit by a holding circuit upon receipt of a one-shot pulse and outputting the same as conversion output. C...  
JP62056016
PURPOSE: To detect the phase state of the 1st and 2nd signals by providing the 1st and 2nd means outputting the two signals in response to a clock signal or outputting them with a delay, the 1st and 2nd exclusive OR circuit and the 1st a...  
JP62038369
PURPOSE: To prevent a large noise outputted in the discontinuous region of the transfer characteristic, by providing a delay circuit or phase shift circuit which changes the phase difference between the reference input and the signal inp...  
JP62036566
PURPOSE: To enable highly accurate detection regardless of the polarity in the phase difference and fine difference in the phase, by driving a reversible counter according to the advance or delay signal while a phase comparator outputs a...  
JP62008064
PURPOSE: To make it possible to stabilize the operation of a mixer, by inputting a bias CW (continuous wave) signal to the output terminal of the mixer for detecting the phase between pulse signals. CONSTITUTION: A bias CW-IF signal is i...  
JP61280578
PURPOSE: To facilitate the return of phase comparing output to an origin even when a phase is largely shifted by the effect due to disturbance and to prevent a lead-in time, by applying limiter to phase comparing output to hold said outp...  
JP61274276
PURPOSE: To enable accurate and stable measurement of the time difference between two input signals to be performed, by inserting a jitter removal circuit into the output side of a voltage comparator for making a start pulse and a stop p...  
JP61256262
PURPOSE: To obtain a highly accurate time difference meter wherein the self- testing function with respect to the correlation operation between signals is embodied by simple circuit constitution, by providing a change-over switch to a co...  
JP61254864
PURPOSE: To easily perform the highly accurate self-test of time difference measurement, by providing a means which produces the highly accurate time difference that can be found by a simple calculation between two signals which perform ...  
JP61240167
PURPOSE: To effectively utilize the titled apparatus in the designing of a buffer in the interface of a transmission system by enabling the quantitative detection of the variation in the phase difference of two signal pulses, by detectin...  
JP61240168
PURPOSE: To obtain high measuring accuracy by a relatively small circuit, by using a frequency converter circuit for forming a local oscillation wave with frequency proportional to a wave to be measured. CONSTITUTION: A reference wave si...  
JP61237536
PURPOSE: To measure a correct level by making the frequency of a band pass filter having resolution in use coincident with an intermediate frequency and using a correction value to measure the level of an input signal to be measured. CON...  
JP61217772
PURPOSE: To enable accurate measurement of phase difference value at a desired accuracy, by forming a third signal with the frequency of F=fn/(n-1) [wherein (n) is measuring accuracy and fi frequency) of F to sample one of two signals at...  
JP61207973
PURPOSE: To obtain continuously a required measurement value without requiring a special computer by constituting a correlation type time difference meter of a correlation function calculator and prescribed analog circuit and extracting ...  
JP61187663
PURPOSE: To detect real phase angle difference, by calculating the difference of transmission delay times, generated when voltage measured values at two points were transmitted, from a voltage phase angle difference calculated from the m...  
JP61184468
PURPOSE: To make it possible to directly measure the ignition angle of a thyristor, by counting the frequency multiplied output of an AC power source during a period from the oscillation of a phase control signal to the finish of a half-...  
JP61172070
PURPOSE: To easily detect the phase difference of a plurality of signals with high accuracy, by converting two or more of signals, of which the phases must be detected, to state signals before and behind a reference time signal and analy...  
JP61164353
PURPOSE: To measure a phase shift with high accuracy quantatively by measuring quantatively a phase shift, displaying it and raising automatically an alarm and transmitting it if a phase shift more than the predetermined phase shift take...  
JP61151473
PURPOSE: To make it possible to detect phase difference at a high speed, by constituting the title phase detection circuit from an input signal phase shifter, the divider of the output signal and input signal of the phase shifter, the in...  
JP61149866
PURPOSE: To inspect the phase difference of an internal signal accurately with simple constitution by outputting a pulse signal corresponding to the time difference of variations between two logical signals in a semiconductor integrated ...  
JP61145928
PURPOSE: To improve locking characteristics and response characteristics by switching a lead phase difference signal to be outputted when a lead phase input is given with the presence of a lead phase difference signal and switching the o...  
JP61138174
PURPOSE: To eliminate substantially the influence of noise and to measure an exact phase difference by determining the integrated output of the 2nd wave between π/2W3π/2 phase angle of a reference wave. CONSTITUTION: A max. and min. de...  
JP61045626
PURPOSE: To prevent malfunction due to noise by generating a pulse differentiating an input pulse at its leading and trailing edge at each input and inputting the differentiated pulse to an FF. CONSTITUTION: The leading edge of an input ...  
JP61028824
PURPOSE: To enhance the accuracy of the titled electrode by making said electrode freely deformable from a plane to a semi-circular shape and facilitating the attachment thereof in a closely contacted state, by forming a flexible materia...  
JP60239686
PURPOSE: To make it possible to smoothly keep time measuring action, by preventing the generation of trouble in time measuring function even if the response signal to a question signal is lost. CONSTITUTION: The rectangular pulse signal ...  

Matches 651 - 700 out of 952