Match Document Document Title
7930119 Method for analyzing AC voltage signals  
A method is disclosed for analyzing an AC voltage signal with a transformation which transforms the signal from a representation in the time-domain to a representation in the frequency-domain....
7920990 Apparatus and methods of defining spectral regions of interest for signal analysis  
Apparatus and methods are provided to allow multiple, possibly overlapping, regions of interest within a frequency spectrum to be defined, and managed. Each of these regions of interest may be...
7917331 Deterministic component identifying apparatus, identifying, program, recording medium, test system and electronic device  
A deterministic component identifying apparatus identifies a distribution shape of a deterministic component included in a probability density function supplied thereto. The apparatus includes a...
7912661 Impedance analysis technique for frequency domain characterization of magnetoelastic sensor element by measuring steady-state vibration of element while undergoing constant sine-wave excitation  
Circuitry and program code adapted for carrying out an associated technique for characterizing the response of one or more magnetoelastic sensor elements during exposure to an excitation field...
7908104 Plasma processing apparatus and method for detecting status of said apparatus  
The invention provides a method for detecting and managing the status of a plasma processing apparatus with high sensitivity so as to enable long-term stable processing. In a plasma processing...
7908103 System and methods for determining masking signals for applying empirical mode decomposition (EMD) and for demodulating intrinsic mode functions obtained from application of EMD  
A computer-implemented method of signal processing is provided. The method includes generating one or more masking signals based upon a computed Fourier transform of a received signal. The method...
7904263 Method for automatically detecting and characterizing spectral activity  
The invention disclosed herein provides a computer implementable method for characterizing signals in a frequency domain spectrum where such signals may be a wideband signal while individually...
7888633 Evaluation of spectra in oscillation mass spectrometers  
The invention relates to mass spectrometers in which ion clouds are stored in two spatial directions by radial forces while oscillating largely harmonically at a mass-specific frequency in a third...
7885774 System and method for analyzing power flow in semiconductor plasma generation systems  
A system and method for measuring and analyzing power flow parameters in RF-based excitation systems for semi-conductor plasma generators. A measuring probe (8) is connected to an RF transmission...
7873486 Spectrogram mask trigger  
A spectrogram mask trigger is generated in response to multiple or complex frequency events within a signal being monitored. A sequence of frequency masks over a period of time is generated...
7856329 Method and apparatus for processing an under-sampled chirped sinusoidal waveform using a complex-heterodyne  
A method of processing data acquired by under-sampling a chirped, sinusoidal waveform comprises complex-heterodyning the under-sampled data with a chirped signal having characteristics similar to...
7848898 Method for monitoring process drift using plasma characteristics  
Methods for monitoring process drift using plasma characteristics are provided. In one embodiment, a method for monitoring process drift using plasma characteristics includes obtaining metrics of...
7838825 Method and apparatus for incorporating electrostatic concentrators and/or ion mobility separators with Raman, IR, UV, XRF, LIF and LIBS spectroscopy and/or other spectroscopic techniques  
The present invention provides a novel approach for reliably and accurately detecting and identifying airborne particles. This is done by providing a novel system which incorporates electrostatic...
7822565 System, method, and apparatus for monitoring characteristics of RF power  
A system and method for monitoring RF power is described. In one embodiment the system samples RF power that is generated by an RF generator to obtain RF signals that include information...
7808395 Occupancy detecting method and system  
A method of and a system for detecting a person occupying a vehicle seat or a corresponding underlay whereby the underlay is provided with a single dynamic sensor and whereby the measurement...
7792644 Methods, computer readable media, and graphical user interfaces for analysis of frequency selective surfaces  
A frequency selective surface (FSS) and associated methods for modeling, analyzing and designing the FSS are disclosed. The FSS includes a pattern of conductive material formed on a substrate to...
RE41618 Method and system of automatic bandwidth detection  
A method for measuring a bandwidth of a signal path between a data source and a data recipient involves sending a block of test data from the data source along the signal path to the data...
7781729 Analyzing mass spectral data  
A method for analyzing data from a mass spectrometer comprising obtaining calibrated continuum spectral data by processing raw spectral data; obtaining library spectral data which has been...
7778785 Signal-to-noise ratio measurement for discrete waveform  
There is provided a measuring apparatus for measuring a signal-to-noise ratio of a discrete waveform which is output from an AD converter in response to an input signal, where the signal-to-noise...
7773457 Wireless exploration seismic system  
Systems and methods are provided for acquiring seismic data using a wireless network and a number of individual data acquisition modules that are configured to collect seismic data and forward...
7751470 Time correlation of signal power to distortion characteristics  
Time correlation of signal to distortion characteristics is achieved by acquiring time domain data for a frequency band representing a communication signal, the communication signal having...
7741848 Adaptive multichannel locator system for multiple proximity detection  
A man-portable locator system for locating buried or otherwise inaccessible pipes, conduits, cables, wires and inserted transmitters using detector arrays and stochastic signal processing and...
7738598 Detection and time-of-arrival estimation using an IFM receiver  
An instantaneous frequency measurement (IFM) receiver includes a receiver module for determining a frequency fe of a received signal. Also included is a discrete Fourier transform (DFT) module...
7720646 Signal processor and tracking method of signal search range  
A signal processor and a tracking method of a signal search range are provided which can read out precisely a specific spectrum having frequency varied. A signal processor includes an FFT...
7715996 Method of estimating digital signal frequency  
The present invention is a novel method of performing spectral analysis on a digital signal. The received signal is segmented into a number of data blocks, which may be disjoint or overlapping....
7711452 Characterizing vibrational health in computer systems with variable component configurations  
One embodiment of the present invention provides a system that efficiently conducts vibrational characterizations for a computer system having variable component configurations. During operation,...
7711510 Method of crossover region phase correction when summing signals in multiple frequency bands  
A signal processing system compensates for the relative phase difference between multiple frequency bands so that the combination of the bands is constructive throughout a substantial portion of...
7706993 Method and program for correcting peak position of spectrum waveform pattern  
The invention relates to a peak position correcting method that is a pre-process for testing whether properties of a product, a raw material, etc., are good or defective from a spectrum waveform...
7706992 System and method for signal decomposition, analysis and reconstruction  
The present invention provides a system and method for representing quasi-periodic (“qp”) waveforms comprising, representing a plurality of limited decompositions of the qp waveform, wherein each...
7701195 Actual-ray and image-ray distinction in frequency converters for spectrum analysers  
The process distinguishes image rays and actual rays generated in a frequency converting device from frequency rays of an input signal. The frequency converting device comprises at least a mixer...
7698080 Methods and systems for determining sample identity information are disclosed  
Methods for determining the most likely composition of sample are disclosed. The methods can include: obtaining data from a sample, where the data includes a representation of a measured spectrum;...
7682311 Phase unwrapped velocity display for ultrasound medical imaging  
Phase unwrapping is applied to velocity data to remove aliasing artifacts. Phase unwrapping is applied on multidimensional regions of velocity data. The unwrapped velocity image is displayed. The...
7680614 Method for determining the humidity and density of a dielectric material  
The invention relates to a method for determining the humidity and/or density of a dielectric material in a resonator that is filled with said material and that contains a transmitter and a...
7676336 Watermark embedding  
According to an inventive scheme for introducing a watermark into an information signal, the information signal is at first transferred from a time representation to a spectral/modulation spectral...
7671343 Method of mass analysis and mass spectrometer  
Mass analysis method and mass spectrometer in which the S/N of mass spectra does not deteriorate due to accumulation if an ionization method, such as MALDI, producing spectral intensities that are...
7657387 Method of processing and storing mass spectrometry data  
A data compression technique is disclosed for Fourier Transform Mass Spectrometry (FTMS). A statistical analysis is applied to the data in the frequency domain since most of this data is a result...
7653514 High bandwidth oscilloscope for digitizing an analog signal having a bandwidth greater than the bandwidth of digitizing components of the oscilloscope  
A method for improving bandwidth of an oscilloscope involves, in preferred embodiments, the use of frequency up-conversion and down-conversion techniques. In an illustrative embodiment the...
7653493 Proteomic sample analysis and systems therefor  
Analysis of a group of proteomic samples is facilitated. According to an example embodiment of the present invention, ion mass spectrometry data is collected for a group of samples. For each...
7645984 Apparatus and method for identifying peaks in liquid chromatography/mass spectrometry data and for forming spectra and chromatograms  
Chromatograms and mass spectra produced by an LC/MS system are analyzed by creating a two-dimensional data matrix of the spectral and chromatographic data. The two-dimensional matrix can be...
7643952 Optical image processing using minimum phase functions  
A method processes an optical image. The method includes providing a measured magnitude of the Fourier transform of a two-dimensional complex transmission function. The method further includes...
7636638 Hybrid radiation detection system  
A system for combining the spectral data from multiple ionizing radiation detectors of different types and having different photopeak energy resolutions. First, baseline estimation is performed on...
7630861 Dedicated process diagnostic device  
A field mountable dedicated process diagnostic device is used for diagnosing operation of an industrial control or monitoring system. An input is configured to receive at least one process signal...
7626693 Illumination sources and customizable spectral profiles  
Methods for generating a customized spectral profile, which can be used to generate a corresponding filter, lamp or other type of illuminant. A trial spectrum is generated. A reference spectrum is...
7623974 System and method for detecting onset of structural failure  
A system for detecting the onset of structural failure in a structural element subject to a mechanical load comprises a metering array, a signal processor, and an output processor. The metering...
7620509 Detection of time-frequency codes using a spectrogram  
A frequency hopping pattern of a frequency hopping signal is detected by use of spectrogram-generating software in a digital storage oscilloscope. By using a spectrogram, a hopping pattern can be...
7620508 Terahertz detection using a multi-mode signal  
A technique for generating and detecting an EM signal in the THz range involves generating EM energy having multiple modes, selecting at least two of the modes of the EM energy to provide a...
7619731 Measuring a damaged structure formed on a wafer using optical metrology  
A method of measuring a damaged structure formed on a semiconductor wafer using optical metrology includes directing an incident beam on the damaged structure. A diffracted beam is received from...
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...
7587015 Asynchronous digital data capture  
The present invention provides asynchronous digital capture by first, capturing the digital output of the device under test (DUT) clock on an automated test equipment (ATE) digital channel. Next,...
7576851 Creating a library for measuring a damaged structure formed on a wafer using optical metrology  
A method of creating a library for measuring a plurality of damaged structures formed on a semiconductor wafer using optical metrology includes directing an incident beam on a first damaged...