Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 551 - 600 out of 9,178

Document Document Title
WO/2005/086630A2
A four-port junction is substituted for a six-port junction in a frequency domain reflectometer, which reduces the parts count and therefore cost and size of the reflectometer while improving reliability. The frequency domain reflectomet...  
WO/2005/085882A1
As a measure against operating an LSI at a frequency outside a permissible range, reference clocks were caused to occur, and a frequency sensor was provided which counted them to determine the frequency. This approach, however, had probl...  
WO/2005/075942A1
There is provided a non-stationary wave analysis system capable of detecting a change of a non-stationary wave with an increased S/N ratio, eliminating the limit of the time resolution of frequency distribution analysis depending on the ...  
WO/2005/072264A2
An adjustment system is disclosed for adjusting a proportional, integral, derivative controller in a limited rotation motor system. The adjustment system includes a first transform unit, a second transform unit, a model identification un...  
WO/2005/073819A1
A diagnostic system is disclosed for analyzing a limited rotation motor system. The diagnostic system includes a first transform unit, a second transform unit, a closed loop frequency response unit, and a diagnostic system. The first tra...  
WO/2005/073783A1
An optimization system is disclosed for optimizing the performance of a laser processing system that employs a limited rotation motor. The optimization system includes an input unit for receiving input parameters including stroke speed, ...  
WO/2005/073782A1
A virtual marking system (30) is disclosed for simulating the performance of a limited rotation motor system. The virtual marking system includes a command generation unit (32), a limited rotation motor system unit (34), and an optical-m...  
WO/2005/073737A1
It is possible to easily adjust the level of an output signal outputted from an object to be measured in order to suppress adverse affect of characteristics of the object to be measured, on a measurement result. A measurement device incl...  
WO/2005/073738A1
The phase of distortion of a signal outputted from an amplifier is measured. A phase measurement device (1) measures an output of an amplifier (20) when an input signal having input frequency components &ohgr 10, &ohgr 20 is given to the...  
WO/2005/069943A2
A calibration system for calibrating frequency domain reflectometer in the field by using the scattering parameters of the multi-port junction determined at the factory (101) and changing the offset and gain terms used in generating a co...  
WO/2005/069883A2
A multi-port junction is used in combination with an Inverse Fourier Transform to detect distance to fault in an RF transmission line or waveguide without the use of heterodyne down-conversion circuits. To provide an ultra-wide bandwidth...  
WO/2005/052606A1
A QP detecting part is digitized. A digital QP detector (20) for detecting, as an input signal, an electric power signal (Vi) to output a detection signal (Vo), comprising a register (210) for recording input digital data; a first multip...  
WO/2005/050841A1
The invention relates to a spectrum analyzer (1) which comprises a mixer (3) which mixes the conjugate complex input signal v*(t) into a base band signal x(t), and a resolution filter (4) which narrow band-filters the base band signal x(...  
WO2005019841A3
The invention relates to a method of calculating frequencies of an oscillatory phenomenon. The inventive method comprises a step whereby at least one sensor generates or acquires information that is characteristic of the oscillatory phen...  
WO/2005/031377A1
The aim of the invention is to provide a method for determining the frequency response of an electrooptical component, particularly, for example, of a light-generating or light-modulating component, which is easy to carry out. To this en...  
WO2004109527B1
A network analyzing apparatus (100) and method for analyzing the network properties of a device under test (20) to which modulated signals are applied including modulating data contained in output signals (10) of the device under test (2...  
WO/2005/019841A2
The invention relates to a method of calculating frequencies of an oscillatory phenomenon. The inventive method comprises a step whereby at least one sensor generates or acquires information that is characteristic of the oscillatory phen...  
WO/2005/015248A1
For testing a digital data signal (20), a value (60A) derived from the digital data signal (20) at a sampling point is compared in an analysis unit (80) against a corresponding value of an arbitrary test signal. The comparison is interpr...  
WO/2005/012927A1
A RF output signal level detection circuit is disclosed having capabilities for selecting between first and second detector circuits. The detector circuits provide different operating characteristics. The use of a same external linkage t...  
WO/2005/006250A1
An apparatus (100) for detecting spectral components in a predetermined frequency band within a signal includes first and second processing devices (112, 114) and first, second, and third connectors (116, 120) tuned to the frequency band...  
WO/2005/005999A1
Simple conventional frequency measurement circuits comprise two counters as essential elements. In such counters a problem may occur that the count value has a relative error of ±1 / N, corresponding to the measurement interval. Accordi...  
WO/2005/001491A1
The invention relates to a high-frequency measuring system for measuring a test piece (19) with a measuring device unit (2) and with at least one high-frequency module (3) that can be connected thereto. Each high-frequency module (3) can...  
WO/2004/109527A1
A network analyzing apparatus (100) and method for analyzing the network properties of a device under test (20) to which modulated signals are applied including modulating data contained in output signals (10) of the device under test (2...  
WO/2004/104603A1
When a signal having two or more frequency components is fed to a circuit to be measured, a phase of the signal output from the circuit to be measured is measured. A phase measurement device (1) measures an output when an input signal ha...  
WO/2004/102214A1
A signal measuring device controls the width of a signal for controlling frequency sweep, in accordance with a signal to be measured. The signal measuring device includes a local oscillator (10) for generating a local signal, a mixer (12...  
WO/2004/102213A1
It is possible to easily set the operation of a spectrum analyzer. The spectrum analyzer receives a signal to be measured. The spectrum analyzer includes a display device (28) having a display screen for displaying the signal to be measu...  
WO2003060557A3  
WO/2004/088454A2
A receiver exploits unique higher order statistics of temporally dependent waveforms to classify, characterize, identify (fingerprint) and intercept a waveform within the field of view of the receiver. The method uses 4th-order non zero ...  
WO2003102810B1
A method extracts information from a time varying signal. The method analyzes the signal to determine component signals. The signal analysis includes defining a signal analysis sample interval, the signal analysis sample interval being w...  
WO/2004/070402A1
A harmonic diagnosing method for an electric facility, wherein a diagnosing method judges a deterioration by determining an index value obtained by dividing a relative harmonic content at each degree of current harmonic running through m...  
WO2003102810A3
A method extracts information from a time varying signal. The method analyzes the signal to determine component signals. The signal analysis includes defining a signal analysis sample interval, the signal analysis sample interval being w...  
WO/2004/068749A1
A fading frequency estimation apparatus for performing a predetermined signal processing to a radio frequency signal coming via a radio transmission path and estimating the frequency of the fading generated in the radio transmission path...  
WO/2004/054316A1
A resonance frequency sensor (20) comprises sound source means (21), signal combining switch means (26, 27) and measuring means (25). The signal combining switch means (26, 27) switch between a first status of outputting a measurement si...  
WO2004028003A3
A system (10) is provided herein for monitoring the harmonic content of the FR signal delivered to an RF powered device (13). The system comprises (a) a voltage transducer (16) adapted to sample the voltage of the RF signal and to output...  
WO2004001557A3
A computer hardware configuration (10) for performing the pseudo-spectral time domain (PSTD) method on data. The hardware configuration includes a forward fast Fourier transform (FFT) unit (20) that calculates a forward fast Fourier tran...  
WO/2004/033997A1
In a measurement device, according to a measurement signal acquired from an object to be measured, a predetermined physical amount contained in the measurement signal is measured in a predetermined measurement range concerning a particul...  
WO2004005945A8
A method for estimating the frequency of a single frequency complex exponential tone in additive Gaussian noise, comprising the steps of: performing the fast Fourier transform (FFT) on the tone; estimating the frequency as the frequency ...  
WO/2004/028003A2
A system (10) is provided herein for monitoring the harmonic content of the FR signal delivered to an RF powered device (13). The system comprises (a) a voltage transducer (16) adapted to sample the voltage of the RF signal and to output...  
WO2003102610A3
The invention relates to a method and a device for detecting interference in the frequency range, which is caused by equipment to be tested. According to the invention, a signal is first received from the equipment to be tested in the ti...  
WO/2004/025836A1
In known methods, in order to determine the period length (3) of a first signal (1), said length is measured by counting the periods of a second signal (2) with a shorter period length (4). The measurement result (m) is dependent both on...  
WO/2004/017082A1
A semiconductor inspection device includes: sampling means having n-1 delay sections for delaying a sampling clock of a clock generator, n digital converters for converting a response waveform output from a semiconductor device into digi...  
WO2003060615A3
At least one exemplary embodiment of the present invention includes a method comprising obtaining a first frequency and a second frequency. The method also comprises creating a table of values comprising a plurality of target frequencies...  
WO/2004/005945A1
A method for estimating the frequency of a single frequency complex exponential tone in additive Gaussian noise, comprising the steps of: performing the fast Fourier transform (FFT) on the tone; estimating the frequency as the frequency ...  
WO/2004/001722A1
The invention relates to telecommunication engineering, in particular to methods and devices for information signal processing. Said invention makes it possible to efficiently suppress wideband polyharmonic noises which corrupt the infor...  
WO/2004/001557A2
A computer hardware configuration (10) for performing the pseudo-spectral time domain (PSTD) method on data. The hardware configuration includes a forward fast Fourier transform (FFT) unit (20) that calculates a forward fast Fourier tran...  
WO2002099443A3
The invention relates to a device for determining a signal frequency based on a determined number of signal impulses in a time interval. Said device comprises a counter (19) having an upstream (4) AND gate, which determines the number of...  
WO/2003/102810A2
A method extracts information from a time varying signal. The method analyzes the signal to determine component signals. The signal analysis includes defining a signal analysis sample interval, the signal analysis sample interval being w...  
WO/2003/102610A2
The invention relates to a method and a device for detecting interference in the frequency range, which is caused by equipment to be tested. According to the invention, a signal is first received from the equipment to be tested in the ti...  
WO/2003/102605A1
A method for fast frequency estimation by calculating using the RLS method (Formula I), where (Formula II). The method is characterised in that the iterations in the calculation of pi are eliminated by pi being rewritten as (Formula III)...  
WO/2003/093841A1
The invention relates to a measuring device (1) for measuring intermodulation distortion of a measuring object (3). Said measuring device comprises a first signal generator (2) which produces a first signal (S1) that is supplied to an in...  

Matches 551 - 600 out of 9,178