ClassID:

171558

G01R23/005 - CPC Classification

Classification description:

Arrangements for measuring frequencies; Arrangements for analysing frequency spectra Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing phase or frequency of 2 mutually independent oscillations in demodulators)

Recent Application in this class:
#1
20260147025
2026-05-28

SYSTEM AND METHOD FOR DATA TRANSMISSION

#2
20260016515
2026-01-15

SYNCHRONOUS PHASE ELECTRIC METER MEASURING SYSTEM

#3
20250271475
2025-08-28

METHOD FOR DETECTING WHETHER THERE IS ISLANDING AND POWER CONDITIONING SYSTEM USING SAME

#4
20250188326
2025-06-12

ADHESIVE COMPOSITION AND METHODS OF FORMING THE SAME

#5
20250059414
2025-02-20

CLASSIFYING COMPARATORS BASED ON COMPARATOR OFFSETS

#6
20250030272
2025-01-23

WIRELESS POWER TRANSMISSION SYSTEM FOR DETECTING OPTIMAL RESONANCE FREQUENCY AND METHOD OF DETECTING OPTIMAL RESONANCE FREQUENCY USING THE SAME

#7
20250004024
2025-01-02

FULLY DIGITAL DOMAIN INTEGRATED FREQUENCY MONITOR

#8
20240364346
2024-10-31

SYSTEMS FOR AND METHODS OF CLOCK FREQUENCY MONITORING

#9
20240288478
2024-08-29

METHOD OF MONITORING A CLOCK SIGNAL, CORRESPONDING DEVICE AND SYSTEM

#10
20240183901
2024-06-06

CLOCK MONITORING CIRCUIT

#11
20240142545
2024-05-02

POWER SUPPLY ABNORMALITY DETECTION CIRCUIT

#12
20240036089
2024-02-01

METHOD AND APPARATUS FOR ADJUSTING QUBIT FREQUENCY, ELECTRONIC DEVICE AND READABLE STORAGE MEDIUM

#13
20230341447
2023-10-26

Method, device and system for measuring frequency domain characteristics, and storage medium

#14
20230333148
2023-10-19

DEVICE AND METHOD FOR WAVEFORM SEARCHING BY EXAMPLE

#15
20230318313
2023-10-05

BATTERY TYPE DETERMINATION SYSTEM, METHOD FOR DETERMINING BATTERY TYPE, AND STORAGE MEDIUM

#16
20230148340
2023-05-11

PERFORMING ENVIRONMENTAL RADIO FREQUENCY MONITORING

#17
20230134591
2023-05-04

Wireless Power Transfer System and Control Method Thereof

#18
20220326045
2022-10-13

Demodulation phase calibration using external input

#19
20220221498
2022-07-14

FREQUENCY DETECTION CIRCUIT AND RECEPTION DEVICE

#20
20220099717
2022-03-31

Frequency sensing systems and methods

#21
20210336623
2021-10-28

Semiconductor device and clock detector

#22
20210234623
2021-07-29

Performing environmental radio frequency monitoring

#23
20210132125
2021-05-06

Waveform generation identification method and computer-readable medium

#24
20210109144
2021-04-15

Apparatus and method for determining a trigger time

#25
20210088615
2021-03-25

Method of setting a measurement instrument and system for setting a measurement instrument

#26
20210067170
2021-03-04

Frequency ratio measurement device

#27
20200408819
2020-12-31

Electronic device, corresponding apparatus, method and computer program product

#28
20200379061
2020-12-03

Systems and methods for magnetic field sensors with self-test

#29
20200348328
2020-11-05

Sensor processing system, sensor system, and sensor processing method

#30
20200213139
2020-07-02

Classifying comparators based on comparator offsets

#31
20200208027
2020-07-02

Adhesive composition and methods of forming the same

#32
20200195184
2020-06-18

Method for calibrating frequency of driving voltage waveform for linear resonance device and related device

#33
20200096546
2020-03-26

Frequency sensing systems and methods

#34
20190354135
2019-11-21

Frequency execution monitoring in a real-time embedded system

#35
20190338752
2019-11-07

Primary frequency modulation method and device for wind turbine

#36
20190120657
2019-04-25

Demodulation phase calibration using external input

#37
20190056438
2019-02-21

ADAPTIVE LEARNING BASED ON ELECTROENCEPHALOGRAPHIC DATA

#38
20190041440
2019-02-07

On-chip frequency monitoring

#39
20180343014
2018-11-29

Idle tone dispersion device and frequency ratio measuring device

#40
20180139563
2018-05-17

Method and device for quickly determining location-dependent pulse responses in signal transmission from or into a spatial volume

#41
20180129196
2018-05-10

Signal protocol fault detection system and method

#42
20180088184
2018-03-29

Systems and methods for magnetic field sensors with self-test

#43
20180059154
2018-03-01

Determining the frequency of an alternating signal

#44
20180017605
2018-01-18

C/N ratio detection circuit and signal receiving circuit

#45
20170322261
2017-11-09

Voltage detecting device and battery pack monitoring system

#46
20170279439
2017-09-28

RF phase offset detection circuit

#47
20170227585
2017-08-10

Harmonic distortion separation method, nonlinear character determination method and apparatus and system

#48
20170199143
2017-07-13

Detection device, detection system, detection method, and program

#49
20160370409
2016-12-22

Circuit for detecting a knee of waveform

#50
20160178687
2016-06-23

Phase control device

#51
20160165687
2016-06-09

Ballast type detecting circuit and light emitting diode lighting apparatus having the same

#52
20160164303
2016-06-09

Wireless power transfer method and apparatus and method of detecting resonant frequency used in wireless power transfer

#53
20160025820
2016-01-28

Systems and methods for magnetic field sensors with self-test

#54
20150253366
2015-09-10

Time series analytics

#55
20150097575
2015-04-09

Method of evaluating device including noise source

#56
20140337658
2014-11-13

Frequency execution monitoring in a real-time embedded system

#57
20140286472
2014-09-25

Semiconductor device and measurement method

#58
20140232434
2014-08-21

Multiplexed oscillators

#59
20140152293
2014-06-05

SENSING CIRCUIT

#60
20130222068
2013-08-29

Oscillation circuit, integrated circuit, and abnormality detection method

#61
20130147462
2013-06-13

Fast wideband frequency comparator

#62
20120326751
2012-12-27

Frequency judgment device, voltage comparator circuit, and frequency measurement device

#63
20090108879
2009-04-30

Programmable sensitivity frequency coincidence detection circuit and method

#64
20080122491
2008-05-29

FREQUENCY COMPARATOR, FREQUENCY SYNTHESIZER, AND RELATED METHODS THEREOF

#65
20070071142
2007-03-29

Apparatus and method for multi-phase digital sampling

#66
20060224910
2006-10-05

Circuit and method for monitoring the status of a clock signal

#67
20060132190
2006-06-22

Periodic electrical signal frequency monitoring systems and methods

#68
20060114032
2006-06-01

Clock frequency detect with programmable jitter tolerance

#69
20060087352
2006-04-27

Frequency lock detector

#70
16021744
2024-08-27

Plug-in energy sensor with load injection and monitoring