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Browse by Category: Main > Electrical & Energy
Class Information
Number: 324/76.15
Name: Electricity: measuring and testing > Measuring, testing, or sensing electricity, per se > Analysis of complex waves > Amplitude distribution > With sampler
Description: Subject matter including a device whose output is a series of discrete values representative of the values of an input at a series of points in time.


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7355537 Built-in self-test apparatus and method for digital-to-analog converter Apr. 8, 2008
7298151 Methods and apparatus for reducing thermal noise Nov. 20, 2007
7298128 Method of detecting RF powder delivered to a load and complex impedance of the load Nov. 20, 2007
7292021 Anomaly detector for vibratory angular rate sensor Nov. 6, 2007
7265694 System and method for successive approximation Sep. 4, 2007
7246017 Waveform measuring apparatus for measuring waveform data and writing measurement data to acquisition memory Jul. 17, 2007
7214868 Acoustic signal processing apparatus and method, signal recording apparatus and method and program May. 8, 2007
7194365 Method and apparatus for integrated undersampling Mar. 20, 2007
7173443 Semiconductor test system Feb. 6, 2007
7119530 Motor phase current measurement using a single DC bus shunt sensor Oct. 10, 2006
6998834 Real-time time drift adjustment for a TDR step stimulus Feb. 14, 2006
6968277 Power line monitoring and interrupt method and apparatus Nov. 22, 2005
6965238 Methods and apparatus for analyzing high voltage circuit breakers Nov. 15, 2005
6856924 Mixer-based timebase for sampling multiple input signal references asynchronous to each other Feb. 15, 2005
6798185 Method and apparatus for testing analog to digital converters Sep. 28, 2004
6751566 Sampling digitizer, method for sampling digitizing, and semiconductor integrated circuit test device with sampling digitizer Jun. 15, 2004
6703820 Method and circuit for testing high frequency mixed signal circuits with low frequency signals Mar. 9, 2004
6680606 Electrical sampler for non-simultaneous sampling Jan. 20, 2004
6662124 Protective relay with synchronized phasor measurement capability for use in electric power systems Dec. 9, 2003
6650101 Timebase for sampling an input signal having a synchronous trigger Nov. 18, 2003
6614214 Sampling element controlled by photoconductive switch-generated sampling pulses and sampling device incorporating same Sep. 2, 2003
6552524 High speed power system high voltage transient damage assessment Apr. 22, 2003
6509728 Spectrum analyzer having function of displaying amplitude probability distribution effectively Jan. 21, 2003
6492798 Method and circuit for testing high frequency mixed signal circuits with low frequency signals Dec. 10, 2002
6437952 Earth protection device sensitive to arc currents, trip device and circuit breaker comprising such a device Aug. 20, 2002
6426643 Method for the testing of electronic components Jul. 30, 2002
6407686 Waveform measuring apparatus Jun. 18, 2002
5900755 Phase dither of an acquisition clock using a phase lock loop May. 4, 1999
5890097 Apparatus for waveform disturbance monitoring for an electric power system Mar. 30, 1999
5828983 Method and apparatus for processing a sampled waveform Oct. 27, 1998
5764044 Process for producing time dependent waveforms of positive and negative symmetrical sequence components of a power system's voltages or currents Jun. 9, 1998
5748303 Light sensing device May. 5, 1998
5706204 Apparatus for triggering alarms and waveform capture in an electric power system Jan. 6, 1998
5706203 Waveform measuring apparatus for easily providing pretrigger function by using FIFO memory Jan. 6, 1998
5698984 Adaptive digital filter for improved measurement accuracy in an electronic instrument Dec. 16, 1997
5589763 Coherent undersampling digitizer for use with automatic field test equipment Dec. 31, 1996
5578917 Repetitive digital sampling circuit using two delay lines for improved time accuracy Nov. 26, 1996
5576618 Process and apparatus for comparing in real time phase differences between phasors Nov. 19, 1996
5491722 Eye pattern margin measurement and receiver stress detection device Feb. 13, 1996
5319569 Block averaging of time varying signal attribute measurements Jun. 7, 1994
5262714 Sinewave frequency measuring apparatus Nov. 16, 1993
5253273 ISDN "S" signal detection and display apparatus Oct. 12, 1993
5025207 Method for the measurement of a steady level in a noise-infested signal and automatic measuring device for the application of this method Jun. 18, 1991
4950999 Self-contained, real-time spectrum analyzer Aug. 21, 1990
4918381 Automated method for determining total harmonic distortion Apr. 17, 1990
4904930 Method of carrier frequency estimation Feb. 27, 1990
4890055 Compensated chirp fourier transformer Dec. 26, 1989
4864522 Process for the sampling of an electric signal varying over time and apparatus for the implementation and application of this process Sep. 5, 1989
4862073 Repetitive wave sampler Aug. 29, 1989
4860227 Circuit for measuring characteristics of a device under test Aug. 22, 1989

1 2 3


 
 
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