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Class Information
Number: 702/77
Name: Data processing: measuring, calibrating, or testing > Measurement system in a specific environment > Electrical signal parameter measurement system > Waveform analysis > Frequency > Frequency spectrum > Using fourier method
Description: Subject matter wherein the frequency spectrum is analyzed or determined using Fourier analysis or Fourier transform technique.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7096133 |
Method of establishing benchmark for figure of merit indicative of amplifier flicker noise |
Aug. 22, 2006 |
| 7085613 |
System for monitoring audio content in a video broadcast |
Aug. 1, 2006 |
| 7079962 |
Automated utility meter reading system with variable bandwidth receiver |
Jul. 18, 2006 |
| 7076383 |
Method of resonance spectroscopy for the analysis of statistical properties of samples |
Jul. 11, 2006 |
| 7072785 |
Rate measurement for anomalous trigger events |
Jul. 4, 2006 |
| 7065459 |
Interrogation method for passive sensor monitoring system |
Jun. 20, 2006 |
| 7062388 |
Series arc detection |
Jun. 13, 2006 |
| 7039537 |
Detection and discrimination of instabilities in process control loops |
May. 2, 2006 |
| 7035744 |
Method and system for measuring the energy of a signal |
Apr. 25, 2006 |
| 7035745 |
Statistical test method for objective verification of auditory steady-state responses (ASSR) in the frequency domain |
Apr. 25, 2006 |
| 7027940 |
Stepped sine wave frequency response measurement system |
Apr. 11, 2006 |
| 7024323 |
Control system for a failure mode testing system |
Apr. 4, 2006 |
| 7010446 |
Method and structure for mitigating instrumentation differences |
Mar. 7, 2006 |
| 7010445 |
Automated fault diagnosis device and method |
Mar. 7, 2006 |
| 7003415 |
Delay profile estimation apparatus and a correlating unit |
Feb. 21, 2006 |
| 6980913 |
Methods of determining channel information based on energy measured at multiple frequencies |
Dec. 27, 2005 |
| 6979993 |
Frequency analyzing method, frequency analyzing apparatus, and spectrum analyzer |
Dec. 27, 2005 |
| 6973403 |
Method and system for identification of system response parameters for finite impulse response systems |
Dec. 6, 2005 |
| 6947858 |
Methods and apparatus for analyzing flutter test data using damped sine curve fitting |
Sep. 20, 2005 |
| 6941237 |
Signal detection |
Sep. 6, 2005 |
| 6915225 |
Method, apparatus and system for digital data resampling utilizing fourier series based interpolation |
Jul. 5, 2005 |
| 6915224 |
Method for optimum spectrum analysis |
Jul. 5, 2005 |
| 6911827 |
System and method of measuring low impedances |
Jun. 28, 2005 |
| 6907367 |
Time-series segmentation |
Jun. 14, 2005 |
| 6898535 |
Method and apparatus for decomposing signal jitter using multiple acquisitions |
May. 24, 2005 |
| 6882947 |
Discrete fourier transform (DFT) leakage removal |
Apr. 19, 2005 |
| 6873921 |
Detecting persons concealed in a vehicle |
Mar. 29, 2005 |
| 6853934 |
System and method for remote data acquisition, monitoring and control |
Feb. 8, 2005 |
| 6853933 |
Method of identifying spectral impulses for Rj Dj separation |
Feb. 8, 2005 |
| 6810341 |
Time varying harmonic analysis including determination of order components |
Oct. 26, 2004 |
| 6807497 |
Laser measurement system with digital delay compensation |
Oct. 19, 2004 |
| 6804618 |
Detection and discrimination of instabilities in process control loops |
Oct. 12, 2004 |
| 6789029 |
Method and apparatus for signal extraction in an electronic sensor |
Sep. 7, 2004 |
| 6789030 |
Portable data collector and analyzer: apparatus and method |
Sep. 7, 2004 |
| 6768952 |
System and method of measuring low impedances |
Jul. 27, 2004 |
| 6751564 |
Waveform analysis |
Jun. 15, 2004 |
| 6732058 |
Method and apparatus for computation reduction for tone detection |
May. 4, 2004 |
| 6725723 |
Device for mounting on a machine |
Apr. 27, 2004 |
| 6721445 |
Method for detecting anomalies in a signal |
Apr. 13, 2004 |
| 6708127 |
Beam propagation method for step-index waveguides |
Mar. 16, 2004 |
| 6708128 |
Device, computer program product and method for indicating a function deviation of one or more details of manufacturing equipment using frequency component analysis |
Mar. 16, 2004 |
| 6697746 |
Control system for a failure mode testing system |
Feb. 24, 2004 |
| 6691051 |
Transient distance to fault measurement |
Feb. 10, 2004 |
| 6690977 |
Data processor and data processing method for wavemeter |
Feb. 10, 2004 |
| 6678622 |
FFT based digital radiometer |
Jan. 13, 2004 |
| 6662125 |
Electromagnetic wave analyzer and program for same |
Dec. 9, 2003 |
| 6651016 |
Jitter-corrected spectrum analyzer |
Nov. 18, 2003 |
| 6577966 |
Optimal ratio estimator for multisensor systems |
Jun. 10, 2003 |
| 6577968 |
Method of estimating signal frequency |
Jun. 10, 2003 |
| 6574573 |
Spectrum analysis and display method time series |
Jun. 3, 2003 |
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