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7616721 |
Apparatus and method for checking network synchronization clock signal in communication system
In an apparatus and method for checking a network synchronization clock signal in a communication system, the apparatus generates a divided clock signal which is the same as an externally inputted...
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7613576 |
Using EMI signals to facilitate proactive fault monitoring in computer systems
A system that monitors electromagnetic interference (EMI) signals to facilitate proactive fault monitoring in a computer system is presented. During operation, the system receives EMI signals from...
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7574313 |
Information signal processing by modification in the spectral/modulation spectral range representation
Processing of information signals separated according to modulation and carrier components in a more controlled way is made possible by a device for processing an information signal including a...
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7564386 |
Pre-processing data samples from parallelized data converters
An apparatus for pre-processing data samples from parallelized analog-to-digital converters (ADC). An ADC converts an analog signal into N parallel digital data samples that are output on N ADC...
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7558685 |
Frequency resolution using compression
In a frequency analysis system, such as a signal detection system or a spectrum analyzer, the frequency domain resolution is enhanced by compression and decompression of the signal samples. The...
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7519491 |
Data processing method for spectrum analyzer
A data processing method is provided to enable a calculation based signal analyzer, such as an FFT based spectrum analyzer, to produce results corresponding to a swept spectrum analyzer employing a...
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7516031 |
Apparatus and method for correcting for aberrations
A method of correcting for aberrations in scattering data is described which does not require prior knowledge about the sample microstructure properties or calculations based on the modelling of...
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7493227 |
Method for determining the complex scattering function of an optical coherence tomography sample
A method determines the complex scattering function of a portion of a sample under analysis. The method includes providing a magnitude spectrum of a complex spatial Fourier transform of a complex...
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7492675 |
Digital servo system with calibrated notch filters
A system which calibrates notch filters in a digital servo system is presented. A notch filter can be calibrated by obtaining a frequency response curve of the digital servo system in a range of...
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7483800 |
Peak detection and clutter reduction for a microwave sensor
An effective methodology for reducing the influence of clutter arising from a complex signal environment defined by the use of a microwave sensor within or in connection with a gas turbine engine...
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7483799 |
Method and apparatus for sampling a power supply current of an integrated circuit, and storage medium onto which is recorded a control program therefor
An apparatus for sampling a power supply current value for performing frequency analysis of the power supply current flowing in an integrated circuit with a test signal applied to the integrated...
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7467053 |
Three-dimensional fourier transform processing method for shared memory scalar parallel computer
When a three-dimensional Fourier transform is performed on the data x (i, j, k), the Fourier transform is performed on each two-dimensional plane formed by a first dimension and a second dimension...
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7457712 |
Distributed test equipment system for testing analog communications systems
A distributed test equipment system for testing analog communications systems. One or more analog signal receivers and one or more computers are connected via a packet-switched network such that...
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7444249 |
Digital power metering system for reducing spectral leakage when determining the frequencies present in a power signal
A digital power metering system reduces spectral leakage when determining the frequencies present in a power signal by a technique that includes sampling the signal and performing a transformation...
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7428475 |
Method of processing oscillatory data
A method which permits the transformation of non-stationary response measurements into stationary data for analysis is provided. Many standard analysis techniques, particularly for oscillatory...
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7424404 |
Method for determining the envelope curve of a modulated signal in time domain
The disclosure relates to a method for determining the envelope curve of a modulated input signal with the following method steps:
generating digital samples by digital sampling of the input...
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7398170 |
System for transmitting dynamic data
Disclosed is a system for transmitting dynamic data over a network to a computer resource, the system including at least one receiver configured to receive dynamic data and convert dynamic data...
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7398165 |
Intelligent signal processor for vortex flowmeter
The present invention discloses an intelligent signal processor of a vortex flowmeter, the signal processor mainly adopts a digital signal processor structure for processing a flow rate of a fluid....
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7373258 |
Method for monitoring and regulating selective hydrogenation of olefinic gasoline fractions
This invention describes a method for determining the content of conjugated diolefins by means of the measurement of the MAV of a sample of catalytic cracking gasoline or thermal cracking gasoline,...
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7369953 |
Femtosecond spectroscopy using minimum phase functions
A method determining a transient response includes providing a measured magnitude of the Fourier transform of a complex electric field temporal profile of a pulse sequence comprising a probe pulse...
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7366620 |
Evaluation method of fine pattern feature, its equipment, and method of semiconductor device fabrication
Equipment extracts components of spatial frequency that need to be evaluated in manufacturing a device or in analyzing a material or process out of edge roughness on fine line patterns and displays...
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7323673 |
Modulated laser light detector with discrete fourier transform algorithm
A modulated laser light detector that converts laser light energy into electrical signals which exhibit a frequency that is substantially the same as the laser light modulation frequency, in which...
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7317999 |
Method of mapping linearly spaced spectrum points to logarithmically spaced frequency and a measuring apparatus using the method
A method for mapping a spectrum obtained from signals under test corresponding to linearly spaced frequencies to logarithmically spaced frequencies in a measuring apparatus. A spectrum within a...
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7315636 |
Generation of reconstructed images
A method and system are presented for fast generation of one or more 2D DRRs of an object. 3D scan data of the object (such as CT scan data) are generated. A 3D fast Fourier transform F(u,v,w) is...
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7313493 |
Method of retrieving phase and magnitude of weak ultra-short optical pulses using a stronger unknown pulse
A method determines a complex electric field temporal profile of an optical pulse. The method includes providing a measured magnitude of the Fourier transform of a complex electric field temporal...
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7298129 |
Time arbitrary signal power statistics measurement device and method
A measurement instrument is provided with an FFT module providing a frequency domain output; and a power calculator connected to the frequency domain output to measure power statistics for a test...
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7295939 |
Hardware implementation of the pseudo-spectral time-domain method
A computer hardware configuration for performing the pseudo-spectral time-domain (PSTD) method on data. The hardware configuration includes a forward fast Fourier transform (FFT) unit that...
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7289922 |
Jitter decomposition for high speed serial interfaces
An apparatus and method to decompose measured phase jitter into a deterministic component and a random component. After filtering a time-domain measured phase jitter signal, a discrete Fourier...
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7283923 |
Method of speed measure on turbo superchargers of internal combustion engines by means of vibrations analysis and equipment to perform it
A method of determining speed of rotation of a motor is provided. The method involves collecting samples with a measuring sensor at a sampling frequency, set on the basis of mechanical vibration of...
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7266465 |
Wideband digital IFM receiver with frequency confirmation
An apparatus for confirming a frequency measurement of a received signal includes a discrete Fourier transform (DFT) module for receiving a sampled digital signal. The DFT module is configured to...
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7260485 |
Method and systems for distinguishing between materials having similar spectra
Various computer-implemented methods and systems are provided. One computer-implemented method includes determining a ratio between output signals generated by detecting spectra for a single event...
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7254500 |
Monitoring and representing complex signals
A method of displaying signals containing a spatial and a temporal aspect, where multiple signals are received by multiple sensors. The received signals are decomposed into separate signal...
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7253642 |
Method for sensing an electric field
A method for sensing an electric field includes processing digitized electric field signals, e.g., from an electric field sensing probe. The processing may include performing a Fast Fourier...
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7248980 |
Method and apparatus for removing quantization effects in a quantized signal
One embodiment of the present invention provides a system that reconstructs a high-resolution signal from a set of low-resolution quantized samples. During operation, the system receives a time...
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7231319 |
System and method for proactive motor wellness diagnosis based on potential cavitation faults
The present invention is directed to system and method for determining motor wellness based on potential faults including cavitation faults. Specifically, a controller configured to detect indicia...
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7231311 |
Method for characterizing high-frequency mixers
Novel excitation signals are specifically designed for testing a high-frequency mixer such that all of the desired intermodulation products are measurable after being converted by a sampling...
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7228245 |
Method for determining the fundamental oscillation frequency in an optical fiber and an application of a tensile force thus measured
A method for determining the fundamental oscillation frequency in an optical fiber during the drawing thereof from an optical preform, the oscillation of the optical fiber being measured...
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7184922 |
Measurement device that appears to a computer system as a file storage device
A measurement device operable to communicate with a computer system via files. The computer system may receive one or more files created by the measurement device, where the files include...
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7158901 |
FFT accelerated display mode
An FFT accelerated display mode for a spectrum analyzer processes time domain samples in increments as they are received until a complete measurement frame of samples is processed to provide a...
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7149654 |
Sensor measurement method and system with universal data concentrators
A measurement method and system in which a plurality of sensors are scattered about the system. One or more universal data concentrators are deployed in the areas where the sensors are...
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7130751 |
Method and device for detecting leaks in reciprocating machinery
A method of and device for detecting a leak in reciprocating machinery, comprising at least two pistons, by the volume flow at least out of the reciprocating machinery being monitored and analysed,...
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7124044 |
Method for reconstructing complex wave attributes from limited view measurements
A method is disclosed for reconstructing complex wave attributes from limited view measurements of a scattering object. The method involves the analytic continuation of the Fourier transform of the...
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7113877 |
Signal detection
A method, apparatus, and system for detecting a signal of interest. According to some embodiments, a power of a frequency component of a signal is determined. The power is accumulated for a first...
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7103491 |
Method of estimating parameters of time series data using fourier transform
A method of estimating parameters of time series data using a Fourier transform is disclosed. The parameter estimation method of the present invention can directly estimate modes and parameters,...
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7103490 |
Method for processing raw magnetic resonance data, magnetic resonance tomography unit and magnetic resonance spectroscopy unit
A method is for producing a map from raw magnetic resonance data from a magnetic resonance tomography unit or a spectrum from raw magnetic resonance data from a magnetic resonance spectroscopy...
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7096133 |
Method of establishing benchmark for figure of merit indicative of amplifier flicker noise
A method of establishing a benchmark for a figure of merit indicative of flicker noise of an amplifier circuit.
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7085613 |
System for monitoring audio content in a video broadcast
A method is provided for monitoring audio content in a video broadcast. According to the method, an audio datastream from the video broadcast is received, and audio identifying information is...
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7079962 |
Automated utility meter reading system with variable bandwidth receiver
Methods and apparatus are disclosed for Automated Meter Reading (AMR) systems for determining quantities of a consumed utility product including electric, gas, and water service, using wireless...
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7076383 |
Method of resonance spectroscopy for the analysis of statistical properties of samples
The invention refers to a method of resonance spectroscopy for the analysis of statistical properties of samples, comprising the following steps: a) recording of a complex resonance frequency...
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7072785 |
Rate measurement for anomalous trigger events
A method and apparatus for processing anomalous trigger event conditions to provide anomalous trigger event rate measurements. The apparatus operates to identify one or more trigger events in at...
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