ClassID:

171574

G01R23/167 - CPC Classification

Classification description:

Arrangements for measuring frequencies; Arrangements for analysing frequency spectra; Spectrum analysis; Fourier analysis using filters with digital filters

Recent Application in this class:
#1
20260149258
2026-05-28

ARCING DETECTION METHOD AND SYSTEM

#2
20260016520
2026-01-15

MEASUREMENT APPLICATION DEVICE AND METHOD

#3
20250383374
2025-12-18

MULTI-CHANNEL SPECTRUM ANALYZER WITH MULTI-CHANNEL ANALOG-DIGITAL-CONVERTERS (ADCS)

#4
20240319241
2024-09-26

FILTER BANK CIRCUIT, SPECTRUM ANALYZER, SIGNAL ANALYZER, SIGNAL GENERATOR USING THE SAME, AND CONTROL METHOD FOR THE FILTER BANK CIRCUIT

#5
20240142503
2024-05-02

CIRCUIT FOR DETERMINING THE FREQUENCY OF A SIGNAL

#6
20240085570
2024-03-14

Digital reconfigurable apparatus for spectrum analysis and intreference rejection

#7
20240069081
2024-02-29

SIGNAL ANALYSIS FOR COMPUTING A COMPLEMENTARY CUMULATIVE DISTRIBUTION FUNCTION

#8
20240036098
2024-02-01

Discharge Detection Device

#9
20230417799
2023-12-28

MULTI-CHANNEL SPECTRUM ANALYZER WITH MULTI-CHANNEL ANALOG-DIGITAL-CONVERTERS (ADCS)

#10
20230341449
2023-10-26

DIGITAL FILTER AND MEASUREMENT INSTRUMENT

#11
20230266366
2023-08-24

METHODS AND SYSTEMS FOR SINUSOIDAL SIGNAL DISTORTION MONITORING AND VISUALIZATION

#12
20230258706
2023-08-17

METHOD FOR PARTIAL DISCHARGE RECOGNITION IN HIGH VOLTAGE APPLICATIONS AND UNIT USING THE METHOD

#13
20230096249
2023-03-30

Measurement system and measurement method

#14
20230037910
2023-02-09

Spectrum analyzer and method of controlling the same

#15
20220365121
2022-11-17

Method for monitoring the status of an apparatus and assembly

#16
20220357194
2022-11-10

Smart motor data analytics with real-time algorithm

#17
20220113340
2022-04-14

SYSTEM AND METHOD FOR AUTONOMOUSLY DETECTING SIGNALS ACROSS A RADIO SPECTRUM

#18
20210356502
2021-11-18

Systems and methods of signal analysis and data transfer using spectrogram construction and inversion

#19
20210341522
2021-11-04

Predictive zero phase filtering

#20
20210199701
2021-07-01

Sensing system and sensing signal measuring method thereof

#21
20210080493
2021-03-18

Spectral analysis of electronic circuits

#22
20200379024
2020-12-03

Spectrum analyzer and method of controlling the same

#23
20200284618
2020-09-10

Method for measuring a displacement

#24
20200141986
2020-05-07

Filter Configured to Detect Specific Frequencies of a Monitored Signal

#25
20200127594
2020-04-23

Rotary machine diagnostic system

#26
20200057100
2020-02-20

Method for separating spectrums of an input signal as well as measurement devices for separating spectrums

#27
20200025812
2020-01-23

Measurement apparatus and measurement method

#28
20190379237
2019-12-12

Smart outlet system with fast frequency tracking for power system frequency control using distributed appliances

#29
20190303520
2019-10-03

Spectral analysis of electronic circuits

#30
20190285673
2019-09-19

Spectral-dynamics of an audio signal

#31
20190214826
2019-07-11

Measurement data based method for identifying wind turbine generators which cause sub-synchronous oscillations in complex power system

#32
20190187195
2019-06-20

Signal processing method and material testing machine

#33
20190114393
2019-04-18

Hybrid signal processing circuit for implantable medical devices and methods

#34
20190049496
2019-02-14

Systematic methodology to remove reflections from I/O measurements

#35
20190025356
2019-01-24

Signal detection apparatus, method, and applications

#36
20180335457
2018-11-22

Apparatus and method for detecting object features

#37
20180321290
2018-11-08

Method and system for determining phasor components of a periodic waveform

#38
20180301894
2018-10-18

Relating to direct current protection schemes

#39
20180246152
2018-08-30

Spectrum analyzer with increased real-time bandwidth

#40
20180238943
2018-08-23

Methods for extending frequency transforms to resolve features in the spatio-temporal domain

#41
20180172743
2018-06-21

Method for analysing a signal and apparatus for carrying out the method

#42
20180145505
2018-05-24

Travelling wave protection of a transmission line based on high-pass filtering

#43
20180122625
2018-05-03

SAMPLING A COMPOSITE SIGNAL RELATING TO A PLASMA PROCESS

#44
20180120366
2018-05-03

Method and system for detecting useful signals, with respective non-negligible frequency drift, in a total signal

#45
20180089558
2018-03-29

Signal removal to examine a spectrum of another signal

#46
20180017604
2018-01-18

PARAMETER ESTIMATION AND CONTROL METHOD AND APPARATUS

#47
20180005644
2018-01-04

Methods for processing and analyzing a signal, and devices implementing such methods

#48
20170336450
2017-11-23

Method for detecting signals in a frequency-ambiguous digital receiver, and digital receiver implementing such a method

#49
20170336449
2017-11-23

SPECTRAL ANALYSIS OF ELECTRONIC CIRCUITS

#50
20170332978
2017-11-23

Signal processing method and apparatus

#51
20170227584
2017-08-10

TIME-SERIES DATA WAVEFORM ANALYSIS DEVICE, METHOD THEREFOR AND NON-TRANSITORY COMPUTER READABLE MEDIUM

#52
20170222767
2017-08-03

Phase sector based signal charge acquisition

#53
20160262703
2016-09-15

Ultra high impedance sensor with applications in neurosensing

#54
20160252552
2016-09-01

ANALOG TO INFORMATION CONVERTER

#55
20160226505
2016-08-04

System for analyzing the frequency of a signal, a method thereof and a system for measuring the relative phase between two input signals

#56
20160224757
2016-08-04

Decomposition of non-stationary signals into functional components

#57
20150042307
2015-02-12

METHOD AND APPARATUS FOR TONE TRACING AND TAGGING USING MOBILE COMPUTER DEVICE

#58
20140122025
2014-05-01

Method and system for performing real-time spectral analysis of non-stationary signal

#59
20140105254
2014-04-17

Phase sector based RF signal acquisition

#60
20140012526
2014-01-09

Logical triggering in the frequency domain

#61
20130341922
2013-12-26

Method and module for measuring the rate of change of frequency of waveforms related to converter units in wind turbine generators

#62
20130013262
2013-01-10

Method of performing synthetic instrument based noise analysis using proportional bandwidth spectrum analysis techniques

#63
20110274150
2011-11-10

LOGICAL TRIGGERING IN THE FREQUENCY DOMAIN

#64
20080144856
2008-06-19

Signal analyzers and frequency domain data production methods

#65
20070250558
2007-10-25

Method and device for performing spectrum analysis of a wanted signal or noise signal

#66
20060195301
2006-08-31

Method and apparatus for artifact signal reduction in systems of mismatched interleaved digitizers

#67
20050256656
2005-11-17

Frequency rectification system: apparatus and method

#68
20050240367
2005-10-27

Method of mapping linearly spaced spectrum points to logarithmically spaced frequency and a measuring apparatus using the method

#69
20050216214
2005-09-29

Phase noise compensation for spectral measurements

#70
20050071132
2005-03-31

Digital measurements of spread spectrum clocking

#71
20050038942
2005-02-17

Data converter with statistical domain output

#72
20050021580
2005-01-27

Time domain data converter with output frequency domain conversion

#73
16202334
2020-02-18

Combined parallel processing of spectral information for a radio frequency environment

#74
15991540
2019-07-02

System and methods for detecting and characterizing electromagnetic emissions