Patents-Review.com
ClassID:

171575 ⎘

G01R23/17 - CPC Classification

Classification description:

Arrangements for measuring frequencies; Arrangements for analysing frequency spectra; Spectrum analysis; Fourier analysis with optical or acoustical auxiliary devices

Recent Application in this class:
#1
20240241159
2024-07-18

DEVICE FOR ANALYZING RADIOFREQUENCY SIGNAL SPECTRA

 #2
20240192367
2024-06-13

OBJECT OR SURFACE NOISE-LEVEL DETECTION USING RADARS AND/OR LIDARS

 #3
20230220769
2023-07-13

Minimization of drill string rotation rate effect on acoustic signal of drill sound

 #4
20220317166
2022-10-06

Photonic device and a terahertz signal generator

 #5
20210199702
2021-07-01

Background suppression for MM-wave spectroscopy

 #6
20210109010
2021-04-15

System for analyzing electromagnetic radiation

 #7
20210096174
2021-04-01

Electro-optic waveform analysis process

 #8
20210088582
2021-03-25

Analysis of electro-optic waveforms

 #9
20210063452
2021-03-04

Frequency spectrum detection system

 #10
20210048463
2021-02-18

Device and method for frequency analysis of a signal

 #11
20200149939
2020-05-14

Method for evaluating a frequency spectrum

 #12
20200124650
2020-04-23

System and method for measuring time-frequency characteristic of high-frequency electromagnetic signal

 #13
20200025614
2020-01-23

Device and method for spectral analysis

 #14
20190212377
2019-07-11

Optical RF spectrum analyser

 #15
20190128934
2019-05-02

Apparatus and method for processing spectrum

 #16
20180369729
2018-12-27

Electret fiber sheet

 #17
20180284026
2018-10-04

Ultrahigh resolution dynamic IC chip activity detection for hardware security

 #18
20180236496
2018-08-23

Measurement result display device and measurement result display method

 #19
20180128869
2018-05-10

FAILURE LOCATION SPECIFYING DEVICE AND FAILURE LOCATION SPECIFYING METHOD

 #20
20180074112
2018-03-15

Device for detecting an electric arc based on its acoustic signature

 #21
20170322244
2017-11-09

System for analysis of a microwave frequency signal by imaging

 #22
20150137793
2015-05-21

Systems and methods for precision optical imaging of electrical currents and temperature in integrated circuits

 #23
20150133060
2015-05-14

Distributed spectrum analyzer and method of spectrum analysis applying same

 #24
20150130474
2015-05-14

Apparatus for frequency analyzing a measurement target and method of frequency analyzing a measurement target

 #25
20150014535
2015-01-15

Terahertz detection assembly and methods for use in detecting terahertz radiation

 #26
20140374569
2014-12-25

Frequency visualization apparatus and method

 #27
20140257758
2014-09-11

Adaptive RF signal filter using acousto-optic spectrum analyzer and re-writable XDM mask

 #28
20120166144
2012-06-28

DEVICE CHARACTERISTICS MEASUREMENT METHOD USING AN ALL-OPTOELECTRONIC TERAHERTZ PHOTOMIXING SYSTEM AND SPECTRAL CHARACTERISTICS MEASUREMENT METHOD OF TERAHERTZ MEASURING APPARATUS USING THE SAME

 #29
20120007585
2012-01-12

Sensor for detecting high frequency signals

 #30
20080238405
2008-10-02

RF measurement system incorporating a ream assembly and method of using the same

 #31
20060284774
2006-12-21

Sensor for detecting high frequency signals

 #32
20060202110
2006-09-14

Electro-optic delay line frequency discriminator