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Patent Searching and Data


Matches 651 - 700 out of 2,144

Document Document Title
JPH10117218A
To provide the phase-difference detection circuit by which a phase is normally detected, regardless of disturbances in duty factors. An intermediate frequency signal and a local oscillation signal received externally are given respective...  
JPH1090319A
To enable an estimation system to correctly estimate a phase angle by setting a compensator for compensating a phase delay between a subtracter obtaining an error of both input signals and a loop filter filtering an output of the subtrac...  
JP2731151B2  
JPH10503069A
(57) Summary book invention relates to the method for measuring the phase jitter of a data signal using the clock signal beforehand defined by the phase demodulator. The clock auxiliary signal (Th) drawn from the clock signal (T) as whic...  
JP2720556B2  
JP2718664B2  
JPH10502232A
(57) Summary book invention is an exact method and relates to being high resolution and measuring the phase difference of two periodic input signals with indispensable it being the same frequency using digital parts, for example in a com...  
JPH1048274A
To perform phase decision with high reliability by setting a detection timing with reference to the rising or falling edge of one zero-cross(ZC) data. ZC data S1, S2 obtained from two waveforms for determining the phase are inputted to t...  
JPH1051949A
To build a spot-network power receiving facility which can be interconnected to a generator system or a system in which main and standby power receiving facilities are connected to a spot-network power supply bus. When a power supply cir...  
JPH1050001A
To reduce a data error rate owing to errors caused by interpolation. A sum (9Si+1+9Si) of a nine-fold value (9Si+1) obtained by multiplying a sample value delayed by a delay element 21 by nine by means of an adder 22 and also a bit shift...  
JPH1040644A
To provide a phase error measuring circuit having equivalent functions as before without increasing the circuit scale. This circuit is provided with a control means 1, up down counter 2, register circuit 3, duty modulation circuit 4, and...  
JP2705309B2  
JPH1028110A
To measure phase difference with high precision by executing correction based on the proportion of respective pulse values held in a pulse value holding part with respect to the pulse value of a reference clock signal after the time for ...  
JPH10500260A
(57) A phase detector including the load circuit which forms summary high differential impedance and low common mode impedance is explained. A load circuit is combined with (1) power supply and the (2) 1st node and, and the 2nd node. The...  
JP2693537B2  
JPH09331678A
To continue operation of a power converter by detecting the phase of an accurate and positive system voltage and controlling it safely even if abnormality occurs in an AC system. The phase (θFi) of an angular speed integrating circuit 1...  
JP2692394B2  
JPH09326690A
To obtain a digital PLL circuit of constitution capable of obtaining phase signal output equivalent to analog phase signal output from the digital PLL circuit of H/W constitution and not damaging the synchronous sampling function of a co...  
JPH09512676A
(57) The beam forming method and equipment containing the signal-processing equipment which measures dynamically the relative time delay between the frequency dependence signals of summary plurality are indicated. Signal-processing equip...  
JPH09321592A
To realize a phase comparator circuit in which power consumption is reduced by the use of a simple circuit configuration. In this phase comparator circuit, a reference signal is given to a reset terminal of an RS flip-flop 2 and a 1st in...  
JPH09321616A
To realize a phase comparator whose operation is surely stable, whose circuit configuration is simple, in which simplified wiring and layout design are facilitated and dependency on the design is reduced. Edge detection circuits EDT1, ED...  
JP2685922B2  
JPH09307433A
To provide a PLL(phase locked loop) circuit which can shorten the time when the phase difference gets near zero and also can increase the loop operation speed. A phase/frequency detection circuit 16 decides whether the phase difference b...  
JP2552944Y2  
JP2670360B2  
JPH09271176A
To reduce the harmonic components of a sine wave current of a power-system linked power converting means, by generating the output voltage command value of the power converting means so as to add to it the correcting quantity for correct...  
JPH09266500A
To separate high speed data and to recover the data by activating a phase locked loop in which a clock signal regenerated from the data is nearly equal to a frequency equivalent to a data speed. A data sampling unit 100 of a detection un...  
JPH09264909A
To increase the input phase difference which can be detected by eliminating discontinuous points in the output signals outputted from a phase difference detecting circuit and imparting continuous property. A comparator 1 detects the lead...  
JPH09261043A
To provide a PLL frequency synthesizer by which a signal frequency is locked up to a setting frequency at a high speed. A comparison frequency divider 12 frequency-divides a frequency signal fv to outputs a comparison signal fp. A phase ...  
JPH09257845A
To suppress the divergence of the frequency far apart from the system frequency even if an infinitesimal vibration voltage is retained by providing a lower limit limiter having a predetermined lower limit in output means of a standard va...  
JP2659594B2  
JP2657363B2
The present invention relates to a device for monitoring the phase shift between any two clock signals from among several clock signals (CK1-CKn) of the same frequency. The two clock signals of each possible pair of clock signals respect...  
JPH09243681A
To obtain a phase detector by which synchronization can be detected smoothly and without any instantaneous break even when AC buses are changed over. In a state that an AC bus 201 is used, an AC bus 202 is used for the maintenance of the...  
JPH09229975A
To make it possible to measure the phase difference (minute time difference) of two signals having the same frequency in high accuracy. In addition to two signals 101-a and 101-b having the same frequency obtained from flowmeters, the ou...  
JPH09232948A
To obtain a phase detector with high resolution and easily configured by using a reference signal having a nominal reference frequency and a local signal with a nominal frequency. A scaled signal has a nominal frequency which is M/(M±1)...  
JP2646845B2  
JP2645374B2  
JP2645268B2  
JP2642421B2  
JPH09507103A
(57) Summary book invention relates to the digital phase detector for detecting the phase shift between a comparison clock (VT) and a reference clock (RT). The 1st means (STA, STO) forms a start signal and a red light from a standard clo...  
JPH09166624A
To provide a phase correcting method by which the phase shift of a sampling block can be detected accurately. In the phase correcting method, the peak value of an inputted AC wave is found in accordance with a sampling clock at two sampl...  
JPH09162728A
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...  
JP2619448B2  
JPH09153794A
To provide an integrable and more precise phase detection circuit which corresponds to digital circuit technics. This integrated circuit is provided with the phase detection circuit with an exclusive gate 42 with first and second gate in...  
JPH09145756A
To easily correct an amplitude error due to a gain difference between an I signal system and a Q signal system in a cross detector used for measuring phase and amplitude. A switch 18 is provided to select a reference signal sr(t) and an ...  
JPH09145757A
To continue operation when the power supply of, for example, a thyristor (including GTO) phase control power converter incorporating a phase detection device fails (for example, grounding, phase interruption, and three- phase unbalance) ...  
JPH09140147A
To overcome a problem by erroneous wiring of cables by outputting a phase difference compensating value with any one phase of the angle data and input phase voltage of the phase sequence detecting means. An angle data generating means 41...  
JPH09505143A
(57) Summary book invention relates to the equipment which asks for the phase difference of the 1st digital input signal and the 2nd digital input signal (S1, S2). According to the 1st composition -- the 1st calculation -- the clock sign...  
JPH09133718A
To correct a phase by the amplitude of an AC system voltage so as to properly detect a phase even when an accident occurs because when an accident occurs in the AC system during phase detection, the amplitude of the AC system becomes sma...  
JPH09123911A
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 651 - 700 out of 2,144