Patents-Review.com
ClassID:

171566 ⎘

G01R23/12 - 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 phase shift

Recent Application in this class:
#1
20250309634
2025-10-02

CONTROL DEVICE, ELECTRIC APPARATUS, AND CONTROL METHOD OF ELECTRIC APPARATUS

 #2
20250216427
2025-07-03

MEASUREMENT APPLICATION DEVICE

 #3
20240255556
2024-08-01

Sample Inspection Apparatus

 #4
20240019467
2024-01-18

FREQUENCY ESTIMATION IN A POWER SYSTEM

 #5
20230341448
2023-10-26

ACCURATE DETERMINATION OF RADIO FREQUENCY POWER THROUGH DIGITAL INVERSION OF SENSOR EFFECTS

 #6
20230152408
2023-05-18

INDUCTIVE CONDUCTIVITY SENSOR CIRCUIT, INDUCTIVE CONDUCTIVITY SENSOR AND METHOD OF OPERATING THE CIRCUIT

 #7
20220413024
2022-12-29

System frequency detector

 #8
20220334194
2022-10-20

Optimization method, unit, and electronic device of shifted frequency (SF)-based electromagnetic transient simulation

 #9
20220221498
2022-07-14

FREQUENCY DETECTION CIRCUIT AND RECEPTION DEVICE

 #10
20220183612
2022-06-16

APPARATUS AND METHOD FOR PHASE TRACKING AN OSCILLATORY SIGNAL

 #11
20190212376
2019-07-11

Method for estimating a signal property

 #12
20190146017
2019-05-16

Fast frequency calculator

 #13
20180156849
2018-06-07

Method for detecting high-frequency signals

 #14
20180088160
2018-03-29

Physical quantity measurement apparatus, electronic apparatus, and vehicle

 #15
20180059154
2018-03-01

Determining the frequency of an alternating signal

 #16
20180017696
2018-01-18

DETECTION SENSOR

 #17
20180003750
2018-01-04

Phase frequency detection device

 #18
20170254840
2017-09-07

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

 #19
20150260801
2015-09-17

Digital Frequency response analysis system and method useful for power supplies

 #20
20150054491
2015-02-26

System and method for detecting a fundamental frequency of an electric power system

 #21
20130018616
2013-01-17

FREQUENCY COUNTER

 #22
20130018615
2013-01-17

METHOD AND SYSTEM FOR MEASURING FREQUENCY

 #23
20130007929
2013-01-03

Frequency measuring and control apparatus with integrated parallel synchronized oscillators

 #24
20120274311
2012-11-01

System and method for detecting a fundamental frequency of an electric power system

 #25
20120004876
2012-01-05

Portable System for Auto Var Testing

 #26
20110181297
2011-07-28

Communicating with an implanted wireless sensor

 #27
20110115467
2011-05-19

Film-thickness measuring device using PLL circuit

 #28
20100022896
2010-01-28

Ventricular shunt system and method

 #29
20090224837
2009-09-10

Preventing a false lock in a phase lock loop

 #30
20090224773
2009-09-10

Communicating with an implanted wireless sensor

 #31
20090115396
2009-05-07

Communicating with an implanted wireless sensor

 #32
20080211482
2008-09-04

Method and apparatus for measuring the frequency of a received signal

 #33
20070210786
2007-09-13

Communicating with an implanted wireless sensor

 #34
20070096715
2007-05-03

Communicating with an implanted wireless sensor

 #35
20060196277
2006-09-07

Communicating with an implanted wireless sensor