ClassID:

171565

G01R23/10 - CPC Classification

Classification description:

Arrangements for measuring frequencies; Arrangements for analysing frequency spectra; Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into a train of pulses, which are then counted, i.e. converting the signal into a square wave

Recent Application in this class:
#1
20250334622
2025-10-30

METHOD AND MEASUREMENT APPLICATION DEVICE

#2
20250321254
2025-10-16

Frequency Monitoring Circuitry with Voltage Conversion

#3
20250180642
2025-06-05

Apparatus and Method for Clock Frequency Estimation With Delayed Measurements

#4
20250180614
2025-06-05

Apparatus and Method for Clock Frequency Estimation With Least Squares Method

#5
20250147087
2025-05-08

Method for Acquiring Pulse Width Modulation Signal, Computer Device, and Storage Medium

#6
20240426882
2024-12-26

PULSE COUNTER

#7
20240333293
2024-10-03

ANALOG-DIGITAL CONVERTER AND METHOD

#8
20240183901
2024-06-06

CLOCK MONITORING CIRCUIT

#9
20240110960
2024-04-04

SENSOR MODULE

#10
20240110959
2024-04-04

Frequency monitoring circuitry with voltage conversion

#11
20230092014
2023-03-23

Phase frequency detector-based high-precision feedback frequency measurement apparatus and method

#12
20230034874
2023-02-02

Oscillation detector and operating method thereof

#13
20220398514
2022-12-15

METHOD FOR ANALYZING FLOW REGIME ALTERATIONS FROM RESERVOIR INFLOW TO RESERVOIR OUTFLOW

#14
20220187351
2022-06-16

WAVEFORM MEASURING METHOD

#15
20220128607
2022-04-28

Pulse train signal cycle estimation device, pulse train signal cycle estimation method, and pulse train signal cycle estimation program

#16
20220116196
2022-04-14

Adaptive control of bias settings in a digital microphone

#17
20220050131
2022-02-17

Frequency synthesizer output cycle counter including ring encoder

#18
20210405099
2021-12-30

Frequency measurement apparatus, microcontroller, and electronic apparatus

#19
20210255661
2021-08-19

Frequency counter circuit for detecting timing violations

#20
20210247427
2021-08-12

Anomaly detection apparatus, method and computer-readable medium

#21
20210080373
2021-03-18

Analysis threshold determination device and analysis threshold determination method

#22
20210063451
2021-03-04

Frequency measurement circuit and frequency measurement apparatus

#23
20210050184
2021-02-18

Apparatus for monitoring pulsed high-frequency power and substrate processing apparatus including the same

#24
20200076516
2020-03-05

Methods and devices for real-time monitoring of tunable filters

#25
20200049747
2020-02-13

Frequency multiplying device

#26
20200041551
2020-02-06

Frequency synthesizer output cycle counter including ring encoder

#27
20190178922
2019-06-13

Method and device for measuring the frequency of a signal

#28
20190170573
2019-06-06

Measuring process of the average frequency of an alternating signal, and corresponding electronic circuit

#29
20190041440
2019-02-07

On-chip frequency monitoring

#30
20180188337
2018-07-05

Electronic magnetometer and method for measuring magnetic field

#31
20180137276
2018-05-17

CLOCK FREQUENCY DETECTION METHOD AND APPARATUS

#32
20180120364
2018-05-03

Digital frequency measuring apparatus

#33
20180088160
2018-03-29

Physical quantity measurement apparatus, electronic apparatus, and vehicle

#34
20180013387
2018-01-11

High speed sampling of sensors

#35
20170242060
2017-08-24

Signal inspection apparatus, signal inspection system, signal inspection method, and non-transitory computer-readable medium encoded with signal inspection program

#36
20170146578
2017-05-25

Method and device for measuring the frequency of a signal

#37
20170103871
2017-04-13

APPARATUS FOR MONITORING PULSED HIGH-FREQUENCY POWER AND SUBSTRATE PROCESSING APPARATUS INCLUDING THE SAME

#38
20170003115
2017-01-05

Length measuring apparatus, and method of manufacturing article

#39
20160282169
2016-09-29

Health monitor for turbine flow meter

#40
20160261816
2016-09-08

Method and circuit for reading an array of oscillators

#41
20160187401
2016-06-30

Frequency synthesizer output cycle counter including ring encoder

#42
20160069939
2016-03-10

Low power small area oscillator-based ADC

#43
20160043727
2016-02-11

Period measuring circuit and semiconductor device including the same

#44
20150331027
2015-11-19

Method and apparatus for determining characteristics of an input signal

#45
20150180479
2015-06-25

Metering circuit including a floating count window to determine a count

#46
20150051858
2015-02-19

Pulse frequency measurement device and method and control system

#47
20140354261
2014-12-04

METHOD, CIRCUIT AND INTEGRATED CIRCUIT FOR DETECTING RESONANCE FREQUENCY

#48
20140098927
2014-04-10

Method and apparatus for detecting cut-off frequency of pulse signal

#49
20130249615
2013-09-26

Digital sensing apparatus and digital readout module thereof

#50
20130241531
2013-09-19

Wide range, high resolution frequency monitor

#51
20130182815
2013-07-18

Method and arrangement for frequency determination

#52
20130063127
2013-03-14

Noise reduction system and method

#53
20130018616
2013-01-17

FREQUENCY COUNTER

#54
20130018615
2013-01-17

METHOD AND SYSTEM FOR MEASURING FREQUENCY

#55
20120280716
2012-11-08

Fractional-rate phase frequency detector

#56
20120053903
2012-03-01

Frequency measurement device and electronic device

#57
20110084687
2011-04-14

Signal generation circuit, frequency measurement device including the signal generation circuit, and signal generation method

#58
20110082656
2011-04-07

Frequency measurement method, frequency measurement device and apparatus equipped with frequency measurement device

#59
20100295536
2010-11-25

Frequency measuring apparatus

#60
20100295535
2010-11-25

Frequency measurement device

#61
20100264902
2010-10-21

Detection and estimation of radio frequency variations

#62
20100164475
2010-07-01

Device and method for measuring the frequency of a signal coded modulated carrier signal

#63
20100141240
2010-06-10

Methods for determining the frequency or period of a signal

#64
20090310730
2009-12-17

Frequency detector and phase locked loop having the same

#65
20090251129
2009-10-08

FREQUENCY MEASUREMENT DEVICE AND MEASUREMENT METHOD

#66
20090030629
2009-01-29

Non-linear frequency and phase measurement scheme

#67
20080232538
2008-09-25

TEST APPARATUS AND ELECTRONIC DEVICE

#68
20070135057
2007-06-14

Detection and estimation of radio frequency variations

#69
20060268971
2006-11-30

Testing circuit for measuring a frequency of signal output from clock generator

#70
20060214657
2006-09-28

Method of detecting characteristics of films using eddy current

#71
20060155512
2006-07-13

Method and apparatus for high-precision measurement of frequency

#72
20060155491
2006-07-13

Frequency determination

#73
20060132190
2006-06-22

Periodic electrical signal frequency monitoring systems and methods

#74
20060087352
2006-04-27

Frequency lock detector

#75
20050241362
2005-11-03

Method and device for detecting period length fluctuations of periodic signals