ClassID:

171557

G01R23/00 - CPC Classification

Classification description:

Arrangements for measuring frequencies; Arrangements for analysing frequency spectra

Sub-classes:
Recent Application in this class:
#1
20240369048
2024-11-07

Control Device And Plasma Energy Protective Apparatus For An Ion Thruster

#2
20240210445
2024-06-27

TOOL FOR ELECTRONICS TESTING AND DIAGNOSTICS

#3
20240210156
2024-06-27

Multi-Stage Process and Device for Production of Low Sulfur Heavy Marine Fuel Oil

#4
20240012042
2024-01-11

Method and electric circuit arrangement for determining a branch insulation resistance and a branch leakage capacitance in an ungrounded power supply system

#5
20230051509
2023-02-16

Method and system for implementing a modal processor

#6
20220381547
2022-12-01

Multi-stage device and process for production of a low sulfur heavy marine fuel oil

#7
20220354667
2022-11-10

Control of electrically driven corrosion of medical implants

#8
20220291257
2022-09-15

Tool for electronics testing and diagnostics

#9
20210396563
2021-12-23

Physical quantity measurement device

#10
20210183357
2021-06-17

Method and system for implementing a modal processor

#11
20200271476
2020-08-27

Analysis of smart meter data based on frequency content

#12
20200256906
2020-08-13

Security method for monitoring an optical module and three-dimensional sensor using the same

#13
20200109980
2020-04-09

Frequency spacings to prevent intermodulation distortion signal interference

#14
20200090637
2020-03-19

Method and system for implementing a modal processor

#15
20200011946
2020-01-09

Implantable or insertable nuclear magnetic resonant imaging system

#16
20190285671
2019-09-19

Inertia characteristic

#17
20190204818
2019-07-04

Data collection system, abnormality detection method, and gateway device

#18
20190162785
2019-05-30

APPARATUS AND METHOD FOR MONITORING PERFORMANCE OF POWER LINE FILTER

#19
20190131993
2019-05-02

ADC self-test using time base and current source

#20
20190097579
2019-03-28

Method for determining characteristic parameters of an oscillator

#21
20190097578
2019-03-28

Method for determining the quality factor of an oscillator

#22
20190004099
2019-01-03

Systems and methods for measuring the frequency of signals generated by high frequency medical devices

#23
20180342980
2018-11-29

System and method for multifunction segmented array compensation for oscillators

#24
20180266848
2018-09-20

Analysis of smart meter data based on frequency content

#25
20180224491
2018-08-09

System and method for tuning transformers

#26
20180106841
2018-04-19

Electrical measuring system and method for operating the system

#27
20180031361
2018-02-01

Proximity detection

#28
20170324376
2017-11-09

System and method for multifunction segmented array compensation for oscillators

#29
20170272074
2017-09-21

Digital signal up-converting apparatus and related digital signal up-converting method

#30
20170254840
2017-09-07

Frequency measurement device, frequency measurement method and under frequency load shedding device

#31
20170244503
2017-08-24

Measuring system for over-the-air power measurements

#32
20170244499
2017-08-24

Measuring system for over-the-air power measurements with active transmission

#33
20170205448
2017-07-20

Peak frequency detection device, method, and program

#34
20170146577
2017-05-25

Frequency measurement for electric power delivery system

#35
20170133737
2017-05-11

Cross-guide coupler with main waveguide arm and substrate integrated waveguide (SIW) secondary arm

#36
20170110994
2017-04-20

Motor driving control apparatus

#37
20160373243
2016-12-22

Digital signal up-converting apparatus and related digital signal up-converting method

#38
20160329849
2016-11-10

AC rotating machine control device and electric power steering device equipped with same

#39
20160315569
2016-10-27

Motor drive circuit and method

#40
20160305996
2016-10-20

Method and device for impedance analyzer with binary excitation

#41
20160274175
2016-09-22

Apparatus for use in disturbance evaluation systems based on disturbance extraction from an electrical network

#42
20160258991
2016-09-08

Method and System of Signal Processing for Phase-Amplitude Coupling and Amplitude-Amplitude coupling

#43
20160241035
2016-08-18

Wide-area measurement system based control of grid-scale storage for power system stability enhancement

#44
20160224055
2016-08-04

Abnormal clock rate detection in imaging sensor arrays

#45
20160213268
2016-07-28

DEVICE FOR DETECTING A SPIKE IN ONE OF A PLURALITY OF NEURAL SIGNALS

#46
20160139182
2016-05-19

SINE WAVE ANALYSIS METHOD AND APPARATUS

#47
20160105134
2016-04-14

Controlling a motor with two or more hall sensors

#48
20160091541
2016-03-31

PARAMETER DETERMINATION METHOD, COMPUTER-READABLE RECORDING MEDIUM, AND INFORMATION PROCESSING APPARATUS

#49
20160011248
2016-01-14

CRYSTAL UNIT AND DEVICE FOR MEASURING CHARACTERISTICS OF THE CRYSTAL UNIT

#50
20150365027
2015-12-17

Method and system for determining an offset between a detector and a point on a motor

#51
20150349693
2015-12-03

Motor driving device

#52
20150309092
2015-10-29

Current pattern matching method for non-intrusive power load monitoring and disaggregation

#53
20150303845
2015-10-22

Method and system for calibrating and detecting offset of rotary encoder relative to rotor of motor

#54
20150279553
2015-10-01

System and method for tuning transformers

#55
20150276823
2015-10-01

Method for detecting a fault condition in an electrical machine

#56
20150264586
2015-09-17

System and method for correlative sampling and compression of quasi-periodic machine parameter sensor data in an industrial facility

#57
20150256731
2015-09-10

Driving circuit for voice coil motor, lens module and electronic device using the same, and driving method for voice coil motor

#58
20150194975
2015-07-09

Analogue-to-digital converter

#59
20150153395
2015-06-04

Performing and reporting relative radio measurements

#60
20150145528
2015-05-28

Passive intermodulation measurement device and relay unit including the same

#61
20150137718
2015-05-21

Controlling a motor with two or more Hall sensors

#62
20150123679
2015-05-07

System and method for measuring variable impedance elements in a wireless sensor

#63
20150061639
2015-03-05

Dead-Time Selection In Power Converters

#64
20150056938
2015-02-26

Method and system for characterising a frequency translating device

#65
20140368216
2014-12-18

Measurement and system for performing a calibration

#66
20140354300
2014-12-04

Distortion fingerprinting for EM tracking compensation, detection and error correction

#67
20140350872
2014-11-27

Transmit power measurement apparatus having programmable filter device that is set at least based on frequency response of transmit power detection path and related transmit power measurement method thereof

#68
20140348279
2014-11-27

Digital signal up-converting apparatus and related digital signal up-converting method

#69
20140348269
2014-11-27

Data converting device, digital transmitting apparatus using the data converting device, and related data converting method

#70
20140348264
2014-11-27

Digital transmitter and method for calibrating digital transmitter

#71
20140348259
2014-11-27

Signal converting device and digital transmitting apparatus applying the signal converting device

#72
20140348217
2014-11-27

Transmitter system with digital phase rotator used for applying digital phase rotation to constellation data and related signal transmission method thereof

#73
20140347127
2014-11-27

Switching power amplifier and method for controlling the switching power amplifier

#74
20140347094
2014-11-27

Reconfigurable circuit block supporting different interconnection configurations for rate-conversion circuit and processing circuit and related method thereof

#75
20140323903
2014-10-30

Method and device for multichannel multifrequency analysis of an object

#76
20140312882
2014-10-23

Anti-islanding protection in three-phase converters using grid synchronization small-signal stability

#77
20140253153
2014-09-11

Radio-frequency ion channel antenna

#78
20140009171
2014-01-09

Proximity detection

#79
20140002056
2014-01-02

Systems and methods for measuring the frequency of signals generated by high frequency medical devices

#80
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

#81
20130289914
2013-10-31

FLEXIBLE EVALUATION OF FREE SPACE OVER THE AIR MEASUREMENT UNCERTAINTY METHOD AND APPARATUS

#82
20130222068
2013-08-29

Oscillation circuit, integrated circuit, and abnormality detection method

#83
20130154878
2013-06-20

Resampling a signal to perform synchrophasor measurement

#84
20130147462
2013-06-13

Fast wideband frequency comparator

#85
20130006550
2013-01-03

Identifying electrical sources of acoustic noise

#86
20120209548
2012-08-16

MONITORING OCCURRENCE OF TRANSMISSION AND DISTRIBUTION GRID CODE EVENT BY POWER CONSUMPTION DEVICE

#87
20120112768
2012-05-10

Methods and systems for production testing of DCO capacitors

#88
20120105075
2012-05-03

Method for characterizing an electrical system by impedance spectroscopy

#89
20120098588
2012-04-26

Proximity detection

#90
20110054807
2011-03-03

Analyzing apparatus, analyzing method and a non-transitory storage medium

#91
20100225303
2010-09-09

Method and device for multichannel multifrequency analysis of an object

#92
20100023570
2010-01-28

Method of detection of signal homeostasis

#93
20080001576
2008-01-03

Method of determining a frequency interval containing a resonance frequency of a rechargeable battery

#94
20070136013
2007-06-14

Methods and systems for measuring a rate of change of frequency

#95
20060258293
2006-11-16

High-frequency measuring system having spatially separated high-frequency modules

#96
15846761
2019-08-06

Methods for radio frequency spectral analysis

#97
15201013
2018-07-10

Distortion and pitch processing using a modal reverberator architecture

#98
14925045
2018-03-20

Extraordinary electromagnetic transmission by antenna arrays and frequency selective surfaces having compound unit cells with dissimilar elements

#99
14141473
2014-11-11

Timing path slack monitoring system

#100
14136368
2018-06-19

Analysis of smart meter data based on frequency content

#101
13114882
2014-08-26

Frequency extension module for microwave and millimeter wave spectrum analyzers

#102
13095684
2014-08-26

Systems and methods for accounting for residual passive intermodulation in passive intermodulation measuring instruments