ClassID:

171567

G01R23/14 - 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 heterodyning; by beat-frequency comparison

Sub-classes:
Recent Application in this class:
#1
20260153543
2026-06-04

PHASE CHARACTERISTIC MEASUREMENT APPARATUS, SIGNAL GENERATOR AND SIGNAL ANALYZER HAVING SAME, AND PHASE CHARACTERISTIC MEASUREMENT METHOD

#2
20200309846
2020-10-01

Method and measuring apparatus for testing a device under test

#3
20190212376
2019-07-11

Method for estimating a signal property

#4
20190041440
2019-02-07

On-chip frequency monitoring

#5
20190025356
2019-01-24

Signal detection apparatus, method, and applications

#6
20180246151
2018-08-30

Frequency converter, measuring system, and measuring method

#7
20180224489
2018-08-09

Vector network analyzer

#8
20180191385
2018-07-05

Detection method and device for digital intermediate frequency processing system, and computer storage medium

#9
20150054491
2015-02-26

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

#10
20140354344
2014-12-04

Test and measurement instrument including asynchronous time-interleaved digitizer using harmonic mixing

#11
20140240605
2014-08-28

Apparatus for very high speed adaptive spectrum analysis

#12
20140239938
2014-08-28

Line frequency detector

#13
20120274311
2012-11-01

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

#14
20120217952
2012-08-30

Circuit arrangement for frequency determination

#15
20100299092
2010-11-25

Fundamental wave beat component detecting method and measuring target signal sampling apparatus and waveform observation system using the same

#16
20100293215
2010-11-18

Determination of sine wave period

#17
20100225302
2010-09-09

Measured-signal repetition frequency detection method, and sampling apparatus and waveform observation system using the method

#18
20100141305
2010-06-10

Method for carrying out a frequency change

#19
20100141239
2010-06-10

Secum-trahenz method, especially for a network analyzer, for measurement of a device

#20
20100121596
2010-05-13

METHODS AND SYSTEMS FOR FREQUENCY ESTIMATION FOR ACCELEROMETERS

#21
20080290880
2008-11-27

Network analyzer comprising a switchable measuring bridge

#22
20070054649
2007-03-08

Frequency stability measuring apparatus