Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 151 - 200 out of 6,957

Document Document Title
WO/2021/102831A1
Provided by the present application are a signal filtering method and apparatus, and a data processing device. The method comprises: acquiring a signal to be processed; and filtering the signal by using a preset filter function that has ...  
WO/2021/101630A1
A system may include a non-intrusive sensor circuitry configured to provide electrical measurement data, including, for example, current data, voltage data, power factor data, active power consumption data, reactive power consumption dat...  
WO/2021/097888A1
A motor transient distortion measurement method and system. The method comprises: setting an input voltage of a motor, and generating a synchronous swept frequency signal by using the input voltage (S101); exciting the motor by using the...  
WO/2021/097463A1
An accessory device has a test port, an instrument port to connect to an instrument having an operating bandwidth, and one or more configurable signal paths connectable between the test port and the instrument port to convert a signal fr...  
WO/2021/093579A1
A waveform measuring method, comprising: first convert a waveform to be measured into two corresponding square waves by means of two comparators; collect the two square waves after a hardware logic device receives a signal of starting to...  
WO/2021/096076A1
The present invention relates to a technology for testing a semiconductor device by means of machine learning of the frequency output properties of a semiconductor device, and more specifically relates to technology that increases the te...  
WO/2021/091444A1
The invention is a method to create an instantaneously wideband digital receiver system despite using a digital receiver with substantially smaller bandwidth than the complete system. The invention solves the problem by using frequency c...  
WO/2021/089936A1
The invention relates to a method (1) for monitoring a rotating machine (100) of an aircraft, wherein a measurement signal is acquired from the rotating machine. According to the invention, instantaneous frequencies (ƒĸ(t)) of sinusoid...  
WO/2021/082906A1
A method for measuring the synchronicity of contacts of a two-power supply transfer switch and an apparatus for same, relating to the field of electrical device measurement. The method comprises: corresponding corresponding contact sets ...  
WO/2021/082036A1
The present invention relates to a power system frequency measurement method, a bus voltage correction method, and devices, belonging to the technical field of power system frequency measurement. In the present invention, a positive sequ...  
WO/2021/083810A1
The invention relates to a circuit arrangement, by means of which a voltage type and a voltage value, in particular an average value, of an input voltage (Ue) of a power supply (SV) or of a switching-mode power supply (SV) is ascertained...  
WO/2021/081333A1
Embodiments described herein generally relate to measuring and evaluating a test signal generated by a device under test (DUT). In particular, the test signal generated by the DUT may be compared to a reference signal and scored based on...  
WO/2021/081359A1
Methods and systems are provided for clay detection, clay typing, and clay volume quantification using electromagnetic measurements on a porous media sample at a low frequency less than 5000 Hz. The electromagnetic measurements are used ...  
WO/2021/057025A1
A frequency mixing-based frequency response measurement method and device for a photodetector. Said method comprises: using two microwave signals with angular frequencies of Δω and ωe to modulate two homogenous optical carriers respec...  
WO/2021/061046A1
A computerized method and a sensor device for determining respective presence and concentrations of multiple gases and/or volatile organic compounds, and a method of training the sensor device, wherein the method comprises steps of measu...  
WO/2021/058678A1
The invention relates to an apparatus for determining the impedance on the basis of the frequency of a supply network to be measured, having • an energy storage unit which is suitable for drawing energy from the supply network to be me...  
WO/2021/051177A1
A new model of apparatus for measuring instantaneous angular velocity with high resolution using encoders and time-to-digital converters (TDC) that is designed to be used to take instantaneous angular velocity measurements in combustion ...  
WO/2021/048812A1
The method allows the measurement of the audio signal-to-noise ratio, without having to interrupt the transmission to make the measurements. The method comprises: taking the audio signal processed by the system in a frequency band (∆F)...  
WO/2021/024241A1
A method and device for synthesizing an arbitrary periodic waveform at a user-selectable frequency, utilizing a fixed size digital memory block accessed at a constant loop rate. In order to provide user- selectable frequency output, the ...  
WO/2021/009913A1
A photoelectric conversion device (10) outputs the result of photoelectric conversion of interference light iL obtained through interference in an interferometer (11) of wavelength-swept light Lx output from a wavelength-sweeping light s...  
WO/2020/264503A1
A health monitor circuit for an electric machine is described. The health monitor circuit includes at least one sensor configured to measure a parameter of the electric machine, a communication interface, and a microprocessor coupled to ...  
WO/2020/232475A1
Systems, devices, software, and methods of the present invention enable frequency-based signal power analyses in software suitable for signal with either stationary and non-stationary spectrums. The methods that may be used throughout va...  
WO/2020/225193A1
The invention relates to a method for detecting a direct current component in an inductive device, for example in a transformer or choke, comprising the following method steps using a computer: - Recording a oscillation signal, either of...  
WO/2020/220804A1
A variable-sampling rate Fourier analysis method, comprising the following steps: S100, comparing an initially set sampling frequency to preliminarily sample a signal to be analyzed, and then analyzing the fundamental frequency and funda...  
WO/2020/215163A1
Arc fault current interrupter electrical devices and systems. An example is an electrical device comprising: a contact configured for electrical connection to a power line; at least one sensor to detect at least voltage signals indicativ...  
WO/2020/209513A1
The present invention relates to a partial discharge diagnosis and location detection method and comprises the steps of: configuring a trigger signal on the basis of a first sensing signal acquired from multiple partial discharge sensors...  
WO/2020/204740A1
A method and system are provided for estimating the g-sensitivity of a quartz oscillator, which includes rotating the quartz oscillator successively around each of a plurality of axes constituting a full-rank system, measuring a frequ...  
WO/2020/181320A1
A system for testing an antenna under test (AUT), and a system and method of locating a passive intermodulation (PIM) fault in an AUT is provided. The AUT comprises an input port and a plurality of branches, each branch ending in at leas...  
WO/2020/178919A1
This signal analysis device(10), which decomposes a signal to be analyzed into a plurality of anharmonic signals, is characterized by being provided with: a parameter candidate selection unit (103) which selects a combination candidate o...  
WO/2020/171145A1
A cycle estimation device (10) extracts a candidate cycle from an input pulse train. The cycle estimation device (10) uses a portion of the candidate cycle to determine whether the candidate cycle is an actual cycle, and if not an actual...  
WO/2020/169718A1
A measuring assembly (1) for detecting intermodulations which limits the source of these intermodulations as precisely as possible in order to be able to make statements as to whether the device under test (10) or the rest of the measuri...  
WO/2020/158195A1
A sine wave output unit 2 (audio output unit) outputs an audio signal of a certain frequency to a speaker (10). A sound pickup unit (3) picks up audio outputted from the speaker (10). A signal output control unit (41) controls the freque...  
WO/2020/152764A1
Conventional frequency detection circuits have suffered from a problem in which increasing the reception signal frequency to be detected results in an increase in circuit scale. The frequency detection circuit according to the present ...  
WO/2020/154514A1
A reliable method and apparatus for communications over AC power lines that may have substantial interference is disclosed. A controller can be plugged into an AC outlet and communicate with a device plugged into any other AC outlet over...  
WO/2020/143521A1
A digital audio signal sampling frequency detection method and device. The method comprises: by means of a reference clock signal and a sampling rate clock signal of a digital audio signal, detecting the sampling frequency of the digital...  
WO/2020/117270A1
A system, a method, and a machine-readable medium for overclocking a computer system is provided. An example of a method for overclocking a computer system includes predicting a stable operating frequency for a central processing unit (C...  
WO/2020/110820A1
To provide a physical quantity measurement device capable of reducing frequency analysis error of a gas flow rate than is done conventionally. A physical quantity measurement device 20 includes a flow rate sensor 205 and a signal process...  
WO/2020/073574A1
A phase detection method and apparatus, and a storage medium and an electronic apparatus. The method comprises: performing a sampling operation on a clock signal to be detected to obtain a binary sequence (S12); determining, according to...  
WO/2020/076713A1
Methods and digital circuits provide frequency correction to frequency synthesizers. Dual switched-capacitor voltage detectors connected to an input signal periodically sample the voltage of the input signal, and then determine a fundame...  
WO/2020/056402A1
A discrete spectrum (DS) signal transmitter includes a first circuit element comprising a DS signal generator that generates a plurality of DS signals, each DS signal having a different DS frequency, each DS frequency being (a) a harmoni...  
WO/2020/039077A1
The invention relates to a method for detecting low-frequency vibrations, in particular sub- synchronous resonance, in an electric supply network. The electric supply network has a network voltage with a network nominal frequency. The me...  
WO/2020/038692A1
The invention relates to a method for detecting low-frequency vibrations, in particular sub- synchronous resonance, in an electric supply network. The electric supply network has a network voltage with a network nominal frequency. The me...  
WO/2020/024320A1
A refined Fourier transform-based signal analysis method, belonging to the field of signal processing. Said method convolutes a signal x(n) to be analyzed and e-2 πj αmn/N, so as to obtain a refined Fourier transform form of x(n), N re...  
WO/2020/013811A1
Technologies are described for a system and method for analyzing a liquid sample. An example system may include a controller and an apparatus comprising a dispensing unit, a light source, and a sensor, where the system may be cost-effect...  
WO/2020/008036A1
The invention relates to a method for identifying low-frequency oscillations, in particular subsynchronous resonances, in an electrical supply network (510), wherein the electrical supply network (510) has a network voltage with a nomina...  
WO/2020/007970A1
The invention relates to a method for detecting low-frequency oscillations, more particularly subsynchronous resonances, in an electrical supply network (306), wherein the electrical supply network (306) has a mains voltage with a rated ...  
WO/2020/002184A1
A current sensor with a flux gate comprising a magnetic core (13), a measurement winding (14), an excitation circuit (23) arranged to generate a digital excitation signal (Se), an acquisition circuit (17) arranged to acquire an analogue ...  
WO/2020/002954A1
A location of at least one PIM source (10) within an antenna array assembly (2) is determined by applying an excitation waveform to a connection port (13), setting a multi-element phase shifter (8) to a first state to apply a respective ...  
WO/2019/240787A1
An apparatus, method and work product is disclosed. The method comprises measuring plural transmit signals and corresponding receive signals and determining, using a model describing a relation between each of the plural transmit signals...  
WO/2019/158754A9
Disclosed is an electrical condition monitoring system (100) including a data server arrangement that is connectable to a monitoring unit that is configured to monitor an electrical device when in operation, wherein: the monitoring unit ...  

Matches 151 - 200 out of 6,957