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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...
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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(...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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)...
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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...
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WO/2003/089942A1 |
A range of a frequency measuring device (210) having limited range is extended by pre-processing an input signal (S). The input signal (S) is divided into a plurality of channels (202a, 209b, 202c and 202d). In each channel, the input si...
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WO2002069077B1 |
A process for obtaining the periodic component in a data vector of data taken of a sensed property of an element driven by one or more rotary components (16b) over several rotations. The procedure comprises first forming the data vector ...
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WO/2003/069359A1 |
An apparatus (1) for analyzing a spectrum of an input signal (x(t)) having at least one line with a center frequency (@s) comprises a mixer (2) for zero−mixing the input signal (x(t)) to produce a base band signal (z(t)) by sweeping a ...
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WO/2003/060615A2 |
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...
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WO/2003/060557A2 |
Disclosed is a method for assigning a pulse response to one of a plurality of pulse types with different decay times, particularly the pulse response of a scintillation detector with at least two scintillation materials having different ...
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WO/2003/058271A1 |
System and method for mitigating the effects of narrowband noise in a location-determining signal are provided, wherein the location-determining signal is associated with a periodic reference signal, the embodiments include identifying a...
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WO/2003/058261A1 |
A technique for measuring spectral components, such as noise and distortion, of a non-coherently sampled test signal containing at least one tone of known frequency includes modeling the spectral components of the at least one tone, incl...
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WO/2003/056348A2 |
A method and system for determining the frequency of a pulse input signal (34). A pulse count and a timer count can be captured at a start and end of a predetermined measurement interval to thereby obtain a start pulse count (88) and an ...
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WO/2003/046586A1 |
Provided is a signal detector and method for spectrum analysis and for measuring power of one or more channels of an electrical or optical signal. Each channel may carry a unique modulation tone. A DSP (digital-signal processor) performs...
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WO/2003/044543A2 |
A system (100) that measures a segment of a waveform by isolating the segment by virtue of gating (10). A waveform anomaly may be gated. The gated waveform is supplied to a plurality of frequency information extractors (16, 18, 20), whic...
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WO/2003/038453A1 |
A high−frequency detection circuit is used for detect information on a first high−frequency power having a first frequency (f) in a high−frequency power source apparatus for supplying a load (7) with the first high−frequency powe...
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WO/2003/036313A1 |
A clock&sol skew measurement apparatus for measuring a clock&sol skew between a plurality of clock signals to be measured in a test circuit having a clock signal selection element for selecting and outputting one of a plurality of clock ...
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WO2002042733A9 |
A method that analyzes mass spectra using a digital computer is disclosed. The method includes entering into a digital computer a data set obtained from mass spectra from a plurality of samples. Each sample is, or is to be assigned to a ...
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WO/2003/031031A1 |
A method that analyzes mass spectra using a digital computer is disclosed. The method includes entering into a digital computer a data set (27) obtained from mass spectra from a plurality of samples. Each sample is, or is to be assigned ...
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WO/2003/019891A1 |
The spectrum analyzer includes an input (115) adapted to receive an input signal and a mixer (30), coupled to the input. The mixer is adapted to produce a down converted signal from the input signal. The spectrum analyzer further include...
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WO/2003/016927A1 |
The electromagnetic compatibility measurement is carried out in rough steps with a large measuring bandwidth of 1 MHz. The electromagnetic compatibility measurement signal is filtered by the measuring bandwidth. The filtered signal is ti...
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WO/2003/016928A1 |
A method for determining the sideband ratio of a superconduction mixer using a comb generator. The method is characterized in that (a) the sideband ratio of a mixer for correction of the output of a comb generator is tentatively adjusted...
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WO/2003/005524A1 |
The system (10) obtains the three phase voltages on the power line V¿A?, V¿B? and V¿C?, either from a local primary (14) or local alternative source (16). The selected local source voltages (14, 16) are then applied through switches (...
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WO/2003/003030A1 |
A technique for determining the amplitudes of frequency components of a waveform sampled from an automatic test system includes assembling a list of N frequencies expected to be found in the sampled waveform. A test program running on th...
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WO/2003/003031A1 |
An electrical utility meter having harmonic data templates advantageously enables a user to determine whether equipment at a particular site is susceptible to electrical damage or interference. According to an exemplary embodiment, the m...
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WO/2003/001221A1 |
A distortion detector comprises a clip detector to generate a distortion pulse, processing means to calculate the duty cycle of the distortion pulse and comparator means for supplying a control signal when the calculated duty cycle excee...
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WO/2002/099443A2 |
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...
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