Patents-Review.com
ClassID:

167116 ⎘

G01M11/3127 - CPC Classification

Classification description:

Testing of optical apparatus; Testing structures by optical methods not otherwise provided for; Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers; Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR using multiple or wavelength variable input source

Recent Application in this class:
#1
20260153407
2026-06-04

SINGLE-ENDED MEASUREMENT OF THE SPECTRAL TRANSMISSION RESPONSE OF AN OPTICAL DEVICE UNDER TEST

 #2
20250207997
2025-06-26

DENOISING OPTICAL TIME-DOMAIN REFLECTOMETRY SIGNALS

 #3
20250137879
2025-05-01

Method and Apparatus for Performing Optical Time Domain Reflectometry on an Optical Fibre

 #4
20250007604
2025-01-02

OPTICAL TIME DOMAIN REFLECTOMETER (OTDR)-BASED FIBER MONITORING OPTIMIZATION

 #5
20240426703
2024-12-26

OPTICAL TRANSMISSION LINE TEST EQUIPMENT AND TEST METHOD

 #6
20240322904
2024-09-26

A METHOD FOR DETERMINING INFORMATION ASSOCIATED WITH AN OPTICAL COMPONENT SYSTEM

 #7
20240248002
2024-07-25

OPTICAL INTEGRATED DEVICE AND OPTICAL TIME DOMAIN REFLECTOMETER

 #8
20240110845
2024-04-04

Fiber span characterization utilizing paired optical time domain reflectometers

 #9
20240077382
2024-03-07

Optical Fiber Measurement System

 #10
20230396332
2023-12-07

DEVICE AND METHOD FOR ESTIMATING CHARACTERISTICS OF OPTICAL FIBER TRANSMISSION LINE

 #11
20230152183
2023-05-18

Fiber span characterization utilizing paired optical time domain reflectometers

 #12
20230031468
2023-02-02

Signal detection method and optical time-domain reflectometer

 #13
20220390321
2022-12-08

Spectral averaging of OTDR traces

 #14
20220341813
2022-10-27

Optical pulse tester

 #15
20220341812
2022-10-27

OPTICAL PULSE TESTER

 #16
20220187163
2022-06-16

LIGHT-TRANSMISSION-PATH-SPECTRUM MEASUREMENT DEVICE, LIGHT-TRANSMISSION-PATH SYSTEM, AND COMPUTER-READABLE MEDIUM

 #17
20220120635
2022-04-21

Optical pulse testing device and optical pulse testing method

 #18
20210404909
2021-12-30

Optical fiber recognition using backscattering pattern

 #19
20210376922
2021-12-02

Optical fiber testing device and method

 #20
20210359755
2021-11-18

Process and device for measurement of physical quantity based on Rayleigh backscattering

 #21
20210333169
2021-10-28

Optical integrated device and optical time domain reflectometer

 #22
20210270696
2021-09-02

Optical time-domain reflectometer device including combined trace display

 #23
20210262892
2021-08-26

Optical frequency multiplexing coherent OTDR, testing method, signal processing device, and program

 #24
20210250087
2021-08-12

Method and apparatus for detecting a disturbance in a medium based on shifted filtered phase information for a plurality of fixed locations

 #25
20210226698
2021-07-22

Method and apparatus for detecting a disturbance in a medium based on shifted filtered phase information for a plurality of locations

 #26
20210211193
2021-07-08

Optical fiber characterization measurement systems and methods

 #27
20210199536
2021-07-01

Test method for characterizing an optical fiber link

 #28
20210080350
2021-03-18

Brillouin and rayleigh distributed sensor

 #29
20210003474
2021-01-07

Optical fiber monitoring method, and optical fiber monitoring system

 #30
20210003472
2021-01-07

Multi-wavelength pulsed optical test instrument

 #31
20200259563
2020-08-13

Method and apparatus for detecting a disturbance in a medium

 #32
20200213003
2020-07-02

Method and apparatus for detecting a disturbance in a medium

 #33
20200182742
2020-06-11

Optical time-domain reflectometer device including combined trace display

 #34
20200110003
2020-04-09

Method and apparatus for detecting discontinuities in an optical channel, in particular a fiber optic line

 #35
20190386740
2019-12-19

Method and apparatus for detecting a disturbance in a medium using threshold based detection

 #36
20190386739
2019-12-19

Method and apparatus for detecting a disturbance in a medium using threshold based detection

 #37
20190372665
2019-12-05

Measurement system and measurement method

 #38
20190323921
2019-10-24

High Resolution Correlation Optical Time Domain Reflectometer

 #39
20190280767
2019-09-12

Overcoming Rayleigh backscatter in wavelength division multiplexed fiber optic sensor systems and fault detection in optical networks

 #40
20190277724
2019-09-12

Mult-wavelength pulsed optical test instrument

 #41
20190277669
2019-09-12

Timing markers for fiber sensing systems

 #42
20190257715
2019-08-22

Single OTDR measurement for a plurality of fibers

 #43
20190234831
2019-08-01

Optical line testing device using optical signals having continuous waveform to identify fault location in optical line

 #44
20190056290
2019-02-21

Optical time domain reflectometer using polymer wavelength tunable laser

 #45
20190049338
2019-02-14

Merging technique for OTDR traces captured by using different settings

 #46
20180348086
2018-12-06

Brillouin and rayleigh distributed sensor

 #47
20180266917
2018-09-20

Single-end optical fiber transfer matrix measurement using spatial pilot

 #48
20180259422
2018-09-13

High Resolution Correlation Optical Time Domain Reflectometer

 #49
20180031471
2018-02-01

Non-linear frequency scan optical frequency-domain reflectometry having a processor to estimate a backscattering profile of an optical fiber by applying a predefined function to a beat signal

 #50
20180017464
2018-01-18

Optical line testing device using wavelength tunable laser to measure cutting position of optical line

 #51
20170346551
2017-11-30

Method and apparatus for detecting a disturbance in a medium

 #52
20170328809
2017-11-16

Devices and methods for characterization of distributed fiber bend and stress

 #53
20170322112
2017-11-09

Merging technique for OTDR traces captured by using different settings

 #54
20170307473
2017-10-26

Distributed fiber bend and stress measurement for determining optical fiber reliability by multi-wavelength optical reflectometry

 #55
20170299463
2017-10-19

Brillouin and rayleigh distributed sensor

 #56
20170149496
2017-05-25

Multiple-acquisition OTDR method and device

 #57
20160363507
2016-12-15

Optical time domain reflectometer using polymer wavelength tunable laser

 #58
20160273998
2016-09-22

Method and system for an ultimately fast frequency-scanning brillouin optical time domain analyzer

 #59
20160197673
2016-07-07

Rare earth-doped fiber amplifier with integral optical metrology functionality

 #60
20160187224
2016-06-30

OTDR signal injection for multi-band optical power balancing

 #61
20160169768
2016-06-16

Distributed optical fibre sensor

 #62
20160161296
2016-06-09

Distributed optical fibre sensor

 #63
20160123837
2016-05-05

Devices and methods for characterization of distributed fiber bend and stress

 #64
20160076969
2016-03-17

Optical fiber fault locator

 #65
20160069774
2016-03-10

Optical pulse tester

 #66
20160013860
2016-01-14

Multiple-acquisition OTDR method and device

 #67
20150326956
2015-11-12

Routing in a WDM-based PON

 #68
20150253217
2015-09-10

In-service optical time domain reflectometry utilizing raman pump source

 #69
20150233785
2015-08-20

Methods and systems relating to embedded optical time domain reflectometry

 #70
20150160092
2015-06-11

Method and apparatus for acoustic sensing using multiple optical pulses

 #71
20150117854
2015-04-30

Optical data transmission device

 #72
20150023658
2015-01-22

System, a wavelength isolator and methods therein for supervision of a passive optical network

 #73
20150022803
2015-01-22

Fiber signal loss event identification

 #74
20140362367
2014-12-11

Distributed fiber bend and stress measurement for determining optical fiber reliability by multi-wavelength optical reflectometry

 #75
20140226970
2014-08-14

PON supervision using OTDR measurements

 #76
20140212130
2014-07-31

Methods and apparatuses for supervision of optical networks

 #77
20140147109
2014-05-29

PON supervision using OTDR measurements

 #78
20140133847
2014-05-15

Device, remote node and methods for PON supervision

 #79
20140078506
2014-03-20

Optical time-domain reflectometry signal detection method and apparatus

 #80
20140037285
2014-02-06

Multiple-acquisition otdr method and device

 #81
20140003806
2014-01-02

Supervision of wavelength division multiplexed optical networks

 #82
20130259466
2013-10-03

Arrangement at a remote node, a remote node, a central office and respective methods therein for supervision of a wavelength division multiplexed passive optical network

 #83
20130222811
2013-08-29

Distributed optical fibre sensor

 #84
20130183030
2013-07-18

SYSTEM FOR TESTING OF OPTICAL NETWORK

 #85
20130114954
2013-05-09

Method for generating a probe pulse and coherent optical time domain reflectometer

 #86
20130088718
2013-04-11

Multiple-acquisition OTDR method and device

 #87
20130077975
2013-03-28

System and method for performing in-band reflection analysis in a passive optical network

 #88
20130058365
2013-03-07

Tunable laser system having fine and coarse wavelength discrimination

 #89
20130046499
2013-02-21

System and method utilizing time-slice-eradication to eliminate the effects of wavelength non-linearities from swept-wavelength testing of optical components for sources with non-linearities

 #90
20130039645
2013-02-14

Tunable coherent optical time division reflectometry

 #91
20130038879
2013-02-14

MONITORING A SYSTEM USING OPTICAL REFLECTOMETRY

 #92
20120236294
2012-09-20

Optical fiber fault locator

 #93
20120127458
2012-05-24

MULTI-FUNCTION OPTICAL MEASUREMENT DEVICE

 #94
20120013914
2012-01-19

Apparatus and methods for uniform frequency sample clocking

 #95
20110249973
2011-10-13

Opto-electronic signal processing methods, systems, and apparatus for optical sensor interrogation

 #96
20110194853
2011-08-11

Method and device for monitoring submarine cable system

 #97
20110141457
2011-06-16

Optical time-domain reflectometer

 #98
20110116799
2011-05-19

Tunable coherent optical time division reflectometry

 #99
20100238429
2010-09-23

Method and apparatus for acoustic sensing using multiple optical pulses

 #100
20100226646
2010-09-09

Fiber cable distortion detection system and method

 #101
20100220317
2010-09-02

Method and apparatus for acoustic sensing using multiple optical pulses

 #102
20100172614
2010-07-08

Bidirectional optical module and optical time domain reflectometer

 #103
20100165327
2010-07-01

Measuring brillouin backscatter from an optical fibre using channelisation

 #104
20100026992
2010-02-04

SYSTEM AND METHOD FOR BUILT-IN TESTING OF A FIBER OPTIC TRANSCEIVER

 #105
20100014071
2010-01-21

Frequency-scanned optical time domain reflectometry

 #106
20090086193
2009-04-02

Optical time domain reflectometer

 #107
20090046295
2009-02-19

Apparatus and methods for uniform frequency sample clocking

 #108
20080297772
2008-12-04

Detecting a disturbance in the propagation of light in an optical waveguide

 #109
20080296480
2008-12-04

Method and apparatus for multiple scan rate swept wavelength laser-based optical sensor interrogation system with optical path length measurement capability

 #110
20080144016
2008-06-19

Method and apparatus for acoustic sensing using multiple optical pulses

 #111
20080088846
2008-04-17

Method and apparatus for acoustic sensing using multiple optical pulses

 #112
20080055589
2008-03-06

Bidirectional optical module and optical time domain reflectometer equipped with the bidirectional optical module

 #113
20060280399
2006-12-14

Detecting different spectral components of an optical signal by means of an optical shutter

 #114
20050117840
2005-06-02

Otdr with concurrently applied stimulus signals

 #115
20050025198
2005-02-03

Tracking of a tunable laser over output discontinuities

 #116
15633707
2019-10-01

Bidirectional optical fiber auto-notifier test system