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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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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,...
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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...
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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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7574253 |
Signal processing using non-linear regression with a sinusoidal model
A method for processing signals, such as a tomography signal, in the time domain provides both high spatial resolution and high frequency resolution but at low cost. The method uses non-linear...
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7539582 |
Apparatus and method for detecting and analyzing spectral components in predetermined frequency bands within a signal, frequency filter, and related computer-readable media
An apparatus for detecting spectral components in a predetermined frequency band within a signal includes first and second processing devices and first, second, and third connectors tuned to the...
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7519513 |
High bandwidth real time oscilloscope
A method and apparatus for digitizing a data signal, the method comprising the steps of receiving an input analog data signal, splitting the received input analog data signal into a plurality of...
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7518353 |
Vector network analysis system and method using offset stimulus signals
A vector network analysis system and a method of measuring use offset stimulus signals to stimulate a balanced device under test (DUT) to determine performance parameters. The system includes an...
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7505858 |
Method for analyzing tone quality of exhaust sound
According to evaluation of tone quality of exhaust sound adapted to human audition, a characteristic of the tone quality of exhaust sound is objectively analyzed. There are provided a measuring...
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7496480 |
Sweep manager for signal analysis
System and method for specifying a signal analysis function. First user input is received, e.g., to a graphical user interface (GUI), indicating a parameter for a first operation implementing at...
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7493220 |
Method and system for vibration signal processing
The present invention relates to a vibration signal processing method and system that can be used to account for situations where impact or impulse events are hidden in a normal vibration reading...
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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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7474972 |
Bandwidth multiplication for a test and measurement instrument using non-periodic functions for mixing
An acquisition apparatus for a test and measurement instrument including a splitter configured to split an input signal into a plurality of split signals, a plurality of oscillators, each...
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7460967 |
Selectable navigation to automatically discovered events within the acquisition record of a digital sampling oscilloscope
Events discovered by an automatic measurement subsystem in the trace of a DSO are visited using a set of event navigation controls. In a TIME Mode the controls operate to display the first of those...
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7454301 |
Method and apparatus for predicting system noise
A jitter calculator engine that includes a core effects module, an input/output (I/O) module, and a phase lock loop (PLL) module is provided. The core effects module estimates core jitter caused by...
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7451052 |
Application of comprehensive calibration to mass spectral peak analysis and molecular screening
A method of performing mass spectral analysis involving at least one of the isotope satellites of at least one ion, comprising acquiring a measured mass spectral response including at least one of...
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7444250 |
Measuring or test device comprising interchangeable functional units
A measuring device or test device is provided which includes several functional units that are interconnected. The functional units are interchangeable or can be added or omitted in a variable...
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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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7440859 |
Method for determining plasma characteristics
Methods for determining characteristics of a plasma are provided. In one embodiment, a method for determining characteristics of a plasma includes obtaining metrics of a plasma at two different...
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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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7421356 |
Method and apparatus for measurement of fuel cell high frequency resistance in the presence of large undesirable signals
A method and apparatus for a high frequency resistance measurement instrument with a reasonable dynamic range, which militates against saturation in the presence of one or more large undesirable...
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7418357 |
Realtime power mask trigger
A realtime power mask trigger generator for an instrument that acquires data in response to a trigger signal integrates power amplitudes over a defined bandwidth within a frequency spectrum for an...
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7412340 |
System and method for sample detection based on low-frequency spectral components
Method and apparatus for detecting a selected material in a sample are disclosed. In the method, the sample is placed adjacent a detector coil, for generating an electromagnetic time-domain signal...
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7373281 |
High bandwidth 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...
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7373256 |
Method for the identification of molecules and biomarkers using chemical, biochemical and biological data
This invention pertains generally to the field of multivariate statistics, and in particular to new methods for the analysis (e.g., chemometrics) of chemical, biochemical, and biological data,...
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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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7369952 |
Quantification of disease progression by means of interpolation between parameters based on electromagnetic spectra
The invention relates to analysis methods for diagnosing diseases on human and animal samples. Said invention also relates to an evaluation method for diagnosing the individual stages of a disease...
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7365311 |
Alignment of mass spectrometry data
Methods, systems and mediums are disclosed for aligning mass spectrometry data before the analysis of the mass spectrometry data. The mass spectrometry data may be received from a mass spectrometry...
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7330841 |
Modeling decision making processes
A computer implemented method of predicting decisions uses the knowledge of one or more individuals. The individuals, referred to as a team, are knowledgeable about the domain in which decisions...
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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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7317998 |
Method for the calculation and the assessment of the frequency spectrum of a matrix converter
A method for the calculation of an output spectrum of a matrix converter in which m phases of a generator as an input are alternatingly connected via a multiple number of controllable...
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7313492 |
Method and device for increasing the dynamic range and measuring accuracy of a measuring device for spectrum and/or network analysis
A method and a device for increasing the dynamic range and measuring accuracy of a measuring device for spectrum and/or network analysis images a high-frequency electronic signal within a frequency...
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7313490 |
Wavelet analysis of one or more time domain reflectometry (TDR) signals to determine one or more characteristics of one or more anomalies in a wire
In one embodiment, a method for wavelet analysis of one or more time domain reflectometry (TDR) signals to determine one or more characteristics of one or more anomalies in a wire includes...
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7302353 |
Method for radiation spectroscopy using seeded localized averaging (“SLA”) and channel-address recycling
A method, and apparatus for carrying it out, for processing pulses derived from a radiation detector, those pulses having already been resolved by a pulse-height analyzer into channels having...
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7297941 |
Methods for improved data dependent acquisition
A method of analyzing data from a mass spectrometer for a data dependent acquisition is described. In an embodiment of this method, mass spectral scans are taken of a sample eluted from a liquid...
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7297940 |
Method, apparatus, and program product for classifying ionized molecular fragments
Apparatus, methods, and program products are disclosed that classify spectral peaks in dissociation spectrum data and thereby improves the efficiency of molecular sequencing.
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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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7277807 |
Method for processing a set of spectra, particularly NMR spectra
A method for processing a set of spectra, particularly NMR spectra, by selecting a principle spectral range, recording a plurality of principle spectra in the principal spectral range, obtaining a...
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7277806 |
Method for removing air wave effect from offshore frequency domain controlled-source electromagnetic data
A method for removing the air wave effect from offshore frequency domain controlled source electromagnetic survey data. The region of interest is modeled with ( 111 ) and without ( 113 ) a top air...
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7275003 |
Harmonic diagnosing method for electric facility
The present invention relates to a method of diagnosing deterioration by comparing an index value which is obtained by dividing the relative harmonic content of each order of the current harmonics...
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7271575 |
Oscilloscope based return loss analyzer
A system, apparatus and method for performing differential return loss measurements and other measurements as a function of frequency uses a digital storage oscilloscope (DSO) having spectral...
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7269527 |
System integration module for CBRNE sensors
A sensor interface system and a sensor integration module support individual sensors and sensor arrays, with network connectivity and critical functions required for analog and digital sensors when...
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7269523 |
Method and apparatus for radiation spectroscopy using seeded localized averaging (“SLA”)
A method, and apparatus for carrying it out, for processing pulses derived from a radiation detector, those pulses having already been resolved by a pulse-height analyzer into channels having...
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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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7257497 |
Sequential frequency band acquisition apparatus for test and measurement instruments
An acquisition apparatus for a test and measurement instrument includes an input to receive an input signal, a digitizer to digitize a selected signal, a bypass path to selectively couple the input...
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7254501 |
Spectrum searching method that uses non-chemical qualities of the measurement
A method for determining the most likely composition of a sample, including obtaining data from a sample, wherein the data includes a representation of a measured spectrum; determining the...
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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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7250772 |
Method and apparatus for characterizing a signal path carrying an operational signal
A method of characterizing a signal path includes (i) generating a reference spread-spectrum signal; (ii) coupling the reference spread-spectrum signal into the signal path while the signal path is...
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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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