ClassID:

171590

G01R27/04 - CPC Classification

Classification description:

Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom; Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant in circuits having distributed constants, e.g. having very long conductors or involving high frequencies

Sub-classes:
Recent Application in this class:
#1
20250298068
2025-09-25

DYNAMIC ON-RESISTANCE AND THRESHOLD VOLTAGE INSTABILITY EVALUATION CIRCUIT FOR POWER DEVICES AND OPERATION METHOD THEREOF

#2
20240302417
2024-09-12

Non-destructive measurement method and apparatus for the turn-to-turn resistivity distribution in non-insulation superconducting coils

#3
20240241191
2024-07-18

HIGH-BANDWIDTH COAXIAL INTERFACE TEST FIXTURE

#4
20240210156
2024-06-27

Multi-Stage Process and Device for Production of Low Sulfur Heavy Marine Fuel Oil

#5
20240142504
2024-05-02

CALCULATION METHOD AND CALCULATION DEVICE

#6
20230393006
2023-12-07

RESISTANCE MEASUREMENT ARRAY

#7
20230184695
2023-06-15

Systems for passive microwave remote sensing and their calibration methods

#8
20230003667
2023-01-05

Measuring device for determining a dielectric value

#9
20220390644
2022-12-08

Compact brillouin antenna for detecting metal in free space area

#10
20220381547
2022-12-01

Multi-stage device and process for production of a low sulfur heavy marine fuel oil

#11
20220373416
2022-11-24

Resistance measurement array

#12
20220326118
2022-10-13

System and a method to monitor moving parts in machines

#13
20220322609
2022-10-13

System and a method for interacting with floral objects

#14
20220299551
2022-09-22

Pre-screening and tuning heterojunctions for topological quantum computer

#15
20220299450
2022-09-22

Inspection system and inspection method

#16
20220214389
2022-07-07

Anisotropic constitutive parameters for launching a Zenneck surface wave

#17
20220205930
2022-06-30

Systems for passive microwave remote sensing and their calibration methods

#18
20220170972
2022-06-02

Automated resonant waveguide cavity system for complex permittivity measurements

#19
20210356409
2021-11-18

Sensor system to apply electromagnetic fields for electromagnetic impedance spectroscopy in-process monitoring of fluids

#20
20210311012
2021-10-07

Systems and methods for non-invasive microwave testing of bottles of wine

#21
20210279373
2021-09-09

Tamper detection techniques

#22
20210247428
2021-08-12

Measurement device

#23
20210055445
2021-02-25

Inspection device

#24
20210010888
2021-01-14

Resistance measurement array

#25
20210003621
2021-01-07

Electromagnetic imaging and inversion of simple parameters in storage bins

#26
20200241059
2020-07-30

DEVICE AND METHOD FOR DETERMINING A TEMPERATURE-DEPENDENT IMPEDANCE CURVE ALONG AN ELECTRICAL CONDUCTOR

#27
20200191729
2020-06-18

Device and method for measuring absorbent hygiene products

#28
20200182602
2020-06-11

Proximity Detection

#29
20200166553
2020-05-28

Measurement system and method for matching and/or transmission measurements

#30
20200103448
2020-04-02

DEVICE FOR ELECTRIC AND MAGNETIC MEASUREMENTS

#31
20190316855
2019-10-17

Thermal abnormality detection system and method

#32
20190241284
2019-08-08

APPARATUS AND METHOD FOR TESTING ELECTROMAGNETIC INTERFERENCE DEVICES WITHIN A LINE REPLACEABLE UNIT

#33
20190238631
2019-08-01

Signal generating method, signal generating unit, and non-transitory recording medium storing computer program

#34
20190221401
2019-07-18

Processing chamber hardware fault detection using spectral radio frequency analysis

#35
20190212369
2019-07-11

Signal analyzing circuit and method for auto setting an oscilloscope

#36
20190178924
2019-06-13

Earth-ionosphere waveguide power transfer

#37
20190173321
2019-06-06

Wireless power transmission system, and method for controlling wireless power transmission and wireless power reception

#38
20190041442
2019-02-07

Device for electric and magnetic measurements

#39
20190025357
2019-01-24

Frequency regulation method and apparatus

#40
20190004102
2019-01-03

Advanced antenna performance testing

#41
20180374244
2018-12-27

Process and measuring system for data acquisition and processing in soft-tomography studies

#42
20180340765
2018-11-29

Wireless communication module and wireless communication device

#43
20180292442
2018-10-11

Method for identifying at least one diagnosis variable, measuring device and measuring system

#44
20180267087
2018-09-20

MICROWAVE SENSOR AND MICROWAVE IMAGING DEVICE

#45
20180221796
2018-08-09

Electromagnetic sensor for active monitoring of filter media within a filtration system

#46
20180198324
2018-07-12

Detecting device, power receiving device, contactless power transmission system, and detecting method

#47
20180138015
2018-05-17

Processing chamber hardware fault detection using spectral radio frequency analysis

#48
20180109361
2018-04-19

Circuits for on-situ differential impedance balance error measurement and correction

#49
20180106842
2018-04-19

Impedance measurement through waveform monitoring

#50
20180031361
2018-02-01

Proximity detection

#51
20170315206
2017-11-02

Measurement accessory device

#52
20170310743
2017-10-26

Signal generating method, signal generating unit, and non-transitory recording medium storing computer program

#53
20170310167
2017-10-26

Wireless power transmission system, and method for controlling wireless power transmission and wireless power reception

#54
20170292919
2017-10-12

Microwave imaging device

#55
20170192043
2017-07-06

Method for measuring characteristic impedance of electric transmission line

#56
20170030954
2017-02-02

Apparatus and method for detecting a resonant frequency giving rise to an impedance peak in a power delivery network

#57
20160313260
2016-10-27

Systems, probes, and methods for dielectric testing of wine in bottle

#58
20160266173
2016-09-15

Integrated circuit device for impedance measurement

#59
20160218566
2016-07-28

Detecting device, power receiving device, contactless power transmission system, and detecting method

#60
20160141920
2016-05-19

Detecting device, power receiving device, contactless power transmission system, and detecting method

#61
20160103154
2016-04-14

Internal chirp generator with time aligned acquisition in a mixed-domain oscilloscope

#62
20150293159
2015-10-15

Multi-band impedance detector

#63
20150253370
2015-09-10

Method and system for monitoring a condition of electrical cables

#64
20150223294
2015-08-06

Method for detecting dark discharge and device utilizing the method

#65
20150198643
2015-07-16

Implementing handheld transfer impedance probe

#66
20150177357
2015-06-25

Calibration module with integrated power detector

#67
20150130554
2015-05-14

Ultra-wide band measurement bridge

#68
20150123491
2015-05-07

Wireless power transmission system, and method for controlling wireless power transmission and wireless power reception

#69
20150097579
2015-04-09

Sensor apparatus for measurement of material properties

#70
20150073749
2015-03-12

Signal measurement systems and methods

#71
20140247061
2014-09-04

Measuring whispering-gallery-mode resonator

#72
20140123509
2014-05-08

Shape measuring instrument, impedance detector, and impedance detection method

#73
20140111184
2014-04-24

Internal chirp generator with time aligned acquisition in a mixed-domain oscilloscope

#74
20140091972
2014-04-03

Systems, devices and methods related to near-field electric and magnetic probes

#75
20140091813
2014-04-03

Systems and methods related to near-field electromagnetic scanners

#76
20140043046
2014-02-13

ELECTROMAGNETIC SCANNING IMAGER

#77
20140009171
2014-01-09

Proximity detection

#78
20130342404
2013-12-26

Systems and methods for determining antenna impedance

#79
20130214762
2013-08-22

Measurement bridge in a printed circuit board

#80
20130181725
2013-07-18

Method and apparatus for the measurement of radio-frequency electric permittivity by a meander-line ring resonator

#81
20130134792
2013-05-30

Detecting device, power receiving device, contactless power transmission system, and detecting method

#82
20130127478
2013-05-23

System and method for measuring retentate in filters

#83
20130120004
2013-05-16

Locating appliance

#84
20130069670
2013-03-21

Differential signal transmission cable property evaluating mechanism and evaluating method therefor

#85
20120293187
2012-11-22

Simple and minimally invasive methods and systems for sensing and computing load impedance

#86
20120244822
2012-09-27

Wireless power transmission system, and method for controlling wireless power transmission and wireless power reception

#87
20120242351
2012-09-27

Measurement of bladed rotors

#88
20120235696
2012-09-20

High frequency analysis of a device under test

#89
20120169351
2012-07-05

Signal measurement systems and methods

#90
20120112768
2012-05-10

Methods and systems for production testing of DCO capacitors

#91
20120111124
2012-05-10

Method and apparatus for determining phase fractions of multiphase flows

#92
20120098588
2012-04-26

Proximity detection

#93
20120084037
2012-04-05

High frequency measurement apparatus and calibration method for high frequency measurement apparatus

#94
20110304457
2011-12-15

Organically reactive cell for underground sensing (ORCUS) and system

#95
20110286506
2011-11-24

User Interface for Signal Integrity Network Analyzer

#96
20110246112
2011-10-06

Electronic device and method for correcting time-domain reflectometers

#97
20110238383
2011-09-29

One-Port De-embedding Using Time Domain Substitution

#98
20110238356
2011-09-29

High-frequency measuring device and high-frequency measuring device calibration method

#99
20110193568
2011-08-11

Impedance correction device and method thereof

#100
20100327887
2010-12-30

Chopper-stabilized instrumentation amplifier for impedance measurement

#101
20100321086
2010-12-23

Power and impedance measurement circuits for a wireless communication device

#102
20100312506
2010-12-09

Distance-to-fault measurement system capable of measuring complex reflection coefficients

#103
20100304684
2010-12-02

Method and system for chopped antenna impedance measurements with an RFID radio

#104
20100289502
2010-11-18

Time domain reflectometry system and method of use

#105
20100277198
2010-11-04

System and method for testing a characteristic impedance of an electronic component

#106
20100274516
2010-10-28

Arrangement for determining the operational parameters of a high-frequency power amplifier

#107
20100182024
2010-07-22

System and method for measuring a cable resistance in a power over Ethernet application

#108
20100176789
2010-07-15

High frequency analysis of a device under test

#109
20100123475
2010-05-20

RF chip test method

#110
20100109680
2010-05-06

Electromagnetic scanning imager

#111
20100106439
2010-04-29

PROCESS FOR MEASURING THE IMPEDANCE OF ELECTRONIC CIRCUITS

#112
20100102828
2010-04-29

System and method for measuring retentate in filters

#113
20100026315
2010-02-04

SIGNAL MEASUREMENT SYSTEMS AND METHODS

#114
20090273352
2009-11-05

SENSOR APPARATUS AND SYSTEM FOR TIME DOMAIN REFLECTOMETRY

#115
20090228222
2009-09-10

Line resonance analysis system

#116
20090212790
2009-08-27

METHOD OF ESTIMATING CHANNEL BANDWIDTH FROM A TIME DOMAIN REFLECTOMETER (TDR) MEASUREMENT

#117
20090210180
2009-08-20

Arrangement for determining the operational parameters of a high-frequency power amplifier

#118
20090093987
2009-04-09

Method for accurate measuring stray capacitance of automatic test equipment and system thereof

#119
20090058436
2009-03-05

System and method for measuring a cable resistance in a Power over Ethernet application

#120
20090033339
2009-02-05

Vector impedance measurement system and method of using same

#121
20080309354
2008-12-18

METHOD AND APPARATUS FOR TESTING CHARACTERISTIC IMPEDANCE OF TRANSMISSION LINES

#122
20080284451
2008-11-20

Device, method and system for estimating the termination to a wired transmission-line based on determination of characteristic impedance

#123
20080281537
2008-11-13

Process for Measuring the Impedance of Electronic Circuits

#124
20080265915
2008-10-30

METHOD OF DETECTING A NETWORK CABLING CHANGE

#125
20080265912
2008-10-30

Portable line impedance measurement method and system

#126
20080265910
2008-10-30

Line impedance measurement method and system

#127
20080252301
2008-10-16

Calibration device and calibration method for adjusting a directional-coupler measuring system

#128
20080211515
2008-09-04

Method and apparatus for measuring scattering coefficient of device under test

#129
20080204041
2008-08-28

Differential vector network analyzer

#130
20080186032
2008-08-07

Circuit for detecting the impedance of a load

#131
20080144546
2008-06-19

Device, method and system for estimating the termination to a wired transmission-line based on determination of characteristic impedance

#132
20080136423
2008-06-12

Measurement Arrangement for Determining the Characteristic line Parameters by Measuring Scattering Parameters

#133
20080094072
2008-04-24

Apparatus for extending the bandwidth of vector network analyzer receivers

#134
20080048674
2008-02-28

Signal analysis system and calibration method for processing acquires signal samples with an arbitrary load

#135
20080004820
2008-01-03

Method of measuring characteristic impedance of electrostatic discharge protecting circuit and apparatus for realizing the same

#136
20070159186
2007-07-12

Transmission line pulse measurement system for measuring the response of a device under test

#137
20070159182
2007-07-12

Circuits to increase VNA measurement bandwidth

#138
20070014393
2007-01-18

Method and arrangement for estimation of line properties

#139
20070007972
2007-01-11

Measurement bias tee

#140
20070001685
2007-01-04

Characterizing analog and digital telephone circuits and other types of wiring systems using frequency domain reflectometry (FDR)

#141
20060279275
2006-12-14

Signal measurement systems and methods

#142
20060197627
2006-09-07

Low-loss directional bridge

#143
20060197626
2006-09-07

Integrated directional bridge

#144
20060176044
2006-08-10

Device, method and system for estimating the termination to a wired transmission-line based on determination of characteristic impedance

#145
20060170431
2006-08-03

Method of estimating channel bandwidth from a time domain reflectometer (TDR) measurement using rise time and maximum slope

#146
20060164066
2006-07-27

Apparatus and method for measuring transmission delay time of a signal propagation path between printed circuit boards

#147
20060152229
2006-07-13

Noncontact conductivity measuring instrument

#148
20050264297
2005-12-01

Characterizing analog and digital telephone circuits and other types of wiring systems using frequency domain reflectometry (FDR)

#149
20050256651
2005-11-17

Algorithm for estimation of multiple faults on a transmission line or waveguide

#150
20050248324
2005-11-10

Power supply for measuring the line impedance of underground cable

#151
20050234662
2005-10-20

Method and apparatus for calibrating a frequency domain reflectometer

#152
20050234661
2005-10-20

Algorithm for estimation of multiple faults on a transmission line or waveguide

#153
20050228604
2005-10-13

Method and apparatus for calibrating a frequency domain reflectometer

#154
20050218915
2005-10-06

Method and apparatus for battery testing

#155
20050203711
2005-09-15

Method and apparatus for transmission line and waveguide testing

#156
20050200365
2005-09-15

Apparatus for use in calibrating a VNA

#157
20050200347
2005-09-15

Real-time time drift adjustment for a TDR step stimulus

#158
20050156585
2005-07-21

Reduced complexity transmission line and waveguide fault tester

#159
20050117738
2005-06-02

Method for matching an adaptive hybrid to a line

#160
20050110502
2005-05-26

System and method for determining S-parameters

#161
20050104602
2005-05-19

Method and apparatus for implementing automated electronic package transmission line characteristic impedance verification

#162
20050096860
2005-05-05

Using vector network analyzer for aligning of time domain data

#163
20050027456
2005-02-03

Method and arrangement for signal loop test

#164
20050021256
2005-01-27

Wavelet analysis of one or more time domain reflectometry (TDR) signals to determine one or more characteristics of one or more anomalies in a wire

#165
17494085
2023-02-28

RF signature detection for waveguide deformation

#166
17342603
2022-05-03

Method of measuring impedance using Gaussian white noise excitation

#167
16254942
2020-06-23

High gamma disc-tuning probes for impedance tuners

#168
15298286
2019-06-11

High gamma electronic tuner

#169
13957921
2016-06-14

Devices, systems, and methods for sychronizing a remote receiver to a master signal for measuring scattering parameters

#170
13915214
2018-03-20

Method for reducing power requirements in active load pull system