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WO/2012/156269A1 |
The present invention relates to a method for detecting tones in a received signal, whereby the signal is non-uniformly sampled at a rate below the Nyquist frequency. The method comprises the steps of : - finding a peak in the frequency ...
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WO/2012/152818A1 |
The invention relates to an assembly for analyzing signals, comprising at least one central data processing unit and a screen unit (4) connected to the at least one central data processing unit, wherein the central data processing unit c...
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WO/2012/149191A1 |
A system and method to detect the fundamental frequency of an electric input signal using a feedback control loop including a phase error detector, a loop controller, and a digitally controlled oscillator. The frequency detector may dete...
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WO/2012/130163A1 |
A method for generator subsynchronous current calculation, subsynchronous over-current and divergence protection comprises: collecting a three-phrase current signal of a generator; converting the positive sequence and negative sequence c...
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WO/2012/117551A1 |
Three point difference voltage instantaneous value data (v2(t), v2(t-T), v2(t-2T)) represent the inter-peak distances between adjacent two voltage instantaneous value data in at least continuous four point voltage instantaneous value dat...
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WO/2012/090024A9 |
The present invention relates to a photon system for measuring the frequency of a radiofrequency (RF) signal (1). The system is based on conversion of the RF signal to the optical domain, generated by a Mach-Zehnder modulator (MZM) and t...
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WO/2012/104201A1 |
The invention relates to a method for measuring the carrier frequency of the radio-electric signal transmitted by a remote transmitter using an antenna comprising at least two wideband sub-antennas which are located in a same plane and t...
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WO/2012/075123A2 |
A system and method for measuring the frequency response of a system under test using a single swept-frequency chirp signal. A tapered chirp-frequency test signal is created with a bandwidth defined by first and second frequencies (1101)...
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WO/2012/060883A2 |
A power grid is monitored by continuously measuring by first and second power line sensors at first and second respective power stations first and second frequency data of AC current carried by the power grid [1 10, 1 12]. A grid analysi...
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WO/2012/056087A1 |
In one embodiment, an apparatus comprises a nano-scale spectrum sensor configured to be electromagnetically excitable at a predetermined frequency based on received ambient electromagnetic radiation. The apparatus is also configured to b...
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WO/2012/050950A1 |
A system and methods for determining points for an algorithm to calculate the frequency of a waveform measured from a monitoring device. Data points are measured from the waveform. A last point of interest from the previous cycle of the ...
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WO/2012/049680A1 |
System for collecting at least one signal simultaneously including an analog sampler (106), at least two digital frequency analyzers (DFAs) (108A-C) and a processor (110), the DFAs each coupled with the analog sampler, the processor coup...
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WO/2012/041481A1 |
In a method for determining a frequency of an input signal (IN) a first count (N1) is determined by counting clock pulse edges of a reference clock signal (CLK), whilst the input signal (IN) corresponds to a first level value (L1). Furth...
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WO/2012/042036A1 |
The method for converting time-varying signals (Aj) acquired over a large number of recording channels comprises the steps of: acquiring all the signals (Aj) for an acquisition time that is equal for all the signals computing, by means o...
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WO/2012/044975A1 |
A method of measuring the total harmonic distortion in an electrical distribution system. The distribution system is sampled regularly to generate a set of data. The data is filtered using a narrow band filtering algorithm to measure the...
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WO/2012/038126A1 |
The invention relates to a method for determining the origin of a passive intermodulation product, wherein a distributed object (1) under test is excited with two first excitation signals ( x1 (t), x2 (t) ), each having a single spectral...
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WO/2012/030769A1 |
In an embodiment of the present invention, a wide-band spectrum analyzer system uses a combination of components to achieve wide-band spectrum analysis to conduct a spectrum survey to provide an optimum selected frequency for communicati...
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WO/2012/025784A1 |
A method comprises converting an audio frequency domain signal into one or more voltage signals. Then the characteristics of the one or more voltage signals are determined. Afterwards the characteristics of the one or more voltage signal...
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WO/2012/013883A1 |
The invention relates to a method for determining the fundamental frequency of a periodic signal including harmonic components, comprising: calculating, during a first rough estimation (200) of the fundamental frequency and from samples ...
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WO/2012/002576A1 |
Provided is a signal detector that reduces the dimensions of a power detector circuit using Fourier transformation, and that carries out high speed calculations. The signal detector is provided: with a digitisation unit that outputs a di...
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WO/2012/002615A1 |
The present invention relates to a power quality monitoring system and method thereof. The power quality monitoring system includes a power quality measuring device and a server. The power quality measuring device is connected to a bus a...
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WO/2012/002617A1 |
The present invention relates to a power quality measuring device and method. The power quality measuring device includes: a detection unit obtaining a voltage waveform signal and a current waveform signal at a time interval set in a pow...
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WO/2012/000510A1 |
A method for monitoring structural health of a filter comprising a capacitor in a wind turbine, a system for monitoring structural health of a filter comprising a capacitor in a wind turbine, and a wind turbine are provided. The method i...
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WO/2011/155984A1 |
Described are techniques for processing data. Sample analysis is performed generating scans of data. Each scan comprises a set of data elements each associating an ion intensity count with a plurality of dimensions including a retention ...
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WO/2011/151907A1 |
The disclosed AC charge measurement device standardises and calculates as a standardised voltage amplitude a voltage amplitude calculated by a square integral operation on at least three consecutive points of voltage instantaneous value ...
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WO/2011/150618A1 |
The present invention provides a radio terminal and signal scanning method thereof. The radio terminal includes: a receiving module for receiving external radio signals; a scanning module for scanning the received radio signals according...
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WO/2011/144809A1 |
The present invention describes a new distributed decision making scheme for adaptive signal detection. The innovation describes an adaptive system and method for allocating signal detection resources that are used to find out the status...
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WO/2011/128071A1 |
The invention relates to a method for locating locations in a signal transmission path (10) for a radio-frequency signal, wherein said locations are defective in terms of radio-frequency transmission properties of the signal transmission...
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WO/2011/128419A1 |
An apparatus for determining a measurement value for the oscillations of an oscillator having a plurality of phase outputs that have occurred in one reference interval includes at least one counter connected to a predetermined phase outp...
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WO/2011/128070A1 |
The invention relates to a method for locating points in a signal transmission path (10) for a high-frequency signal, wherein said points are faulty in regard to high-frequency transmission properties of the signal transmission path. For...
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WO/2011/115836A2 |
A test signal generator provides a test signal to an acoustic device under test and a data acquisition device acquires data from the acoustic device. The initial frequency response of the signal path through the acoustic device is determ...
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WO/2011/116218A2 |
A frequency measuring and control apparatus includes a plurality of synchronized oscillators integrated in parallel into one programmable logic device.
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WO/2011/106862A1 |
A method and system for continuously predicting a frequency of an input line power waveform of alternating current having a maximum value, a minimum value, and a reference value located between the maximum and minimum values. The method ...
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WO/2011/107801A1 |
A method and apparatus for performing sampling, comprising: sampling an input signal (16) using a first sampling signal (22) to provide a first sampled signal (26); sampling the input signal (16) using a second sampling signal (24) to pr...
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WO/2011/101097A1 |
The subject of the invention is a method of subsynchronous resonance detection in electrical power systems with series capacitors. Voltage signals are measured on line and by using finding zero crossing points of discrete signal of measu...
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WO/2011/101025A1 |
A sampling unit (110) receives an input clock signal (CLKin) having a varying period time, and samples the input clock signal (CLKin) based on a sampling clock signal (CLKsmpl) that has a frequency being substantially higher than an aver...
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WO/2011/085855A1 |
The invention relates to a method (90) for monitoring a frequency signal (104) provided within a unit (102), wherein the method comprises a step of receiving (91) one or more binary signal levels of a cycle signal (CLK) or a control sign...
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WO/2011/071760A2 |
A system for measuring the superposition of a plurality of sound waves propagating within a conduit containing a fluid having a plurality of transducers positioned substantially parallel to the flow direction along the external surface o...
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WO/2011/063328A2 |
A mean square power detector in accordance with one or more embodiments includes a gain or attenuation circuit comprising a plurality of gain or attenuation elements arranged for generating a plurality of amplified or attenuated versions...
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WO/2011/040592A1 |
The aim is to judge by simple means whether or not the frequency of a rectangular signal to be measured has reached a certain value. The rectangular signal to be measured, which has a frequency (or a period) that changes dynamically, is ...
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WO/2011/025817A1 |
Systems and other embodiments associated with synthetic instrumentation are presented. A reconfigurable synthetic instrumentation unit comprises an input module, with dual input/output ports and conditioning logic to condition an input s...
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WO/2011/021831A2 |
The present invention relates to an apparatus and method for detecting a corona. According to one aspect of the present invention, an apparatus for detecting a corona comprises: a sensing unit which senses corona discharges occurring in ...
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WO/2011/009504A1 |
A measuring device has a first transformation apparatus (41), a first time-quantization apparatus (42) and a selection apparatus (43). The first transformation apparatus (41) carries out the transformation of at least one signal (46) in ...
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WO/2011/007972A2 |
The present invention relates to a system for measuring the frequency of a vibrating wire sensor using a digital counter system, which measures changes in the length of a structure to monitor changes in the structure, comprising: a proce...
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WO/2010/151183A1 |
The present invention relates to a user device and a method for providing a solution for how to make automatic update of the presence state in a mobile device in a communication service e.g. a buddy list in a chat service. The solution i...
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WO/2010/149825A1 |
A communication apparatus including at least one user data communication block configured to transport user data, the user data communication block comprising two or more logical sub blocks configured to process user data on different pr...
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WO/2010/144857A2 |
Methods of rapidly measuring the impedance spectrum of an energy storage device in-situ over a limited number of logarithmically distributed frequencies are described. An energy storage device is excited with a known input signal, and th...
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WO/2010/144834A2 |
Electrochemical Impedance Spectrum (EIS) data are used directly to predict the pulse performance of an energy storage device. The impedance spectrum of the EIS is obtained in-situ using pre-existing techniques. A simulation waveform is c...
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WO/2010/141322A1 |
The use of white space devices in unused portions of the television channel spectrum is facilitated by spectrum sensing techniques that combine interference rejection techniques with feature extraction techniques to detect presence or ab...
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WO/2010/111334A1 |
Apparatus for processing broadband impulses signals of low repetition rate includes a tuner for receiving broadband impulsive signals of low repetition rate and providing an output signal characteristic of the amplitude and spectral cont...
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