ClassID:

223783

H04B10/035 - CPC Classification

Classification description:

Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication; Arrangements for fault recovery using loopbacks

Recent Application in this class:
#1
20260005758
2026-01-01

OPTICAL INTERCONNECTS FOR FLEXIBLE CALIBRATION OF AN OPTICAL TRANSCEIVER IN A FREE-SPACE OPTICAL COMMUNICATION SYSTEM

#2
20250096884
2025-03-20

VISUAL ALIGNMENT OF PAIRED ELECTRONIC APPLIANCES

#3
20250047377
2025-02-06

DYNAMIC ERROR QUANTIZER TUNING SYSTEMS AND METHODS

#4
20240129074
2024-04-18

Systems, methods, and storage media for detecting a security intrusion of a network device

#5
20240113775
2024-04-04

OPTICAL COMMUNICATION DEVICE AND OPTICAL COMMUNICATION SYSTEM

#6
20230243882
2023-08-03

System for detecting circuit anomalies in trailer wiring

#7
20230170990
2023-06-01

Optical communication system, master station, and optical communication method

#8
20230163901
2023-05-25

Systems, methods, and storage media for detecting a security intrusion of a network device

#9
20230155674
2023-05-18

Optical communication system and master station

#10
20230090500
2023-03-23

Submarine cable interface for connection to terrestrial terminals

#11
20220321235
2022-10-06

Submarine cable interface for connection to terrestrial terminals

#12
20220321211
2022-10-06

Systems and methods for sensing fiber optic cables of access networks

#13
20220271833
2022-08-25

OPTICAL TAPPING IN AN INDEXING ARCHITECTURE

#14
20220140893
2022-05-05

Dynamic error quantizer tuning systems and methods

#15
20220116160
2022-04-14

Systems, methods, and storage media for detecting a security intrusion of a network device

#16
20210135752
2021-05-06

OTDR receive device with connectivity feedback

#17
20210135751
2021-05-06

Dynamic error quantizer tuning systems and methods

#18
20210116295
2021-04-22

DIAGNOSTIC WAVEGUIDE FOR OPTICAL CHIP TESTING

#19
20210083766
2021-03-18

OPTICAL TAPPING IN AN INDEXING ARCHITECTURE

#20
20210013962
2021-01-14

Method and apparatus for detecting operational conditions of an optical link in an optical network

#21
20200350987
2020-11-05

OPTICAL TEST DEVICE AND SYSTEMS

#22
20200106572
2020-04-02

Systems, methods, and storage media for detecting a security intrusion of a network device

#23
20200099445
2020-03-26

Optical test device and systems

#24
20190372663
2019-12-05

Optical tapping in an indexing architecture

#25
20190319701
2019-10-17

Techniques for parameter reporting of elements in an optical transmission system using high loss loopback (HLLB) data and a line monitoring system implementing the same

#26
20190260468
2019-08-22

Fault detection and reporting in line monitoring systems

#27
20190229803
2019-07-25

Automatic calibration of loopback data in line monitoring systems

#28
20190222307
2019-07-18

Techniques for parameter reporting of elements in an optical transmission system using high loss loopback (HLLB) data and a line monitoring system implementing the same

#29
20190170572
2019-06-06

Diagnostic waveguide for optical chip testing

#30
20190097727
2019-03-28

Signal loopback circuit and signal loopback method

#31
20190052388
2019-02-14

SYSTEM AND METHOD FOR OPTICAL SIGNAL TRANSMISSION

#32
20180241466
2018-08-23

Information processing apparatus and a method of determining whether or not to transmit failure information

#33
20180183631
2018-06-28

Fast least-mean-square (LMS) equalization

#34
20180041282
2018-02-08

Optical loopback circuits for transceivers and related methods

#35
20170366256
2017-12-21

OPTICAL COMPONENT

#36
20170272153
2017-09-21

Optical test device and systems

#37
20160380695
2016-12-29

Optical test device and systems

#38
20160308604
2016-10-20

Transmission apparatus and network control method

#39
20160161333
2016-06-09

Method and system for performing testing of photonic devices

#40
20150326310
2015-11-12

Transmission apparatus and method

#41
20150318926
2015-11-05

Communications device and method

#42
20140321846
2014-10-30

Airfield lighting control and monitoring system utilizing fiber optic double loop self healing communications

#43
20140255020
2014-09-11

Method, Apparatus, and System for Disaster Recovery of Optical Communication System

#44
20140003809
2014-01-02

Method and apparatus for performing an automatic power adjustment for an optical signal

#45
20130322868
2013-12-05

Method and apparatus for a reconfigurable optical add/drop module with loop-back functions

#46
20130129344
2013-05-23

Apparatus, system and method for network monitoring

#47
20120189298
2012-07-26

Airfield lighting control and monitoring system utilizing fiber optic double loop self healing communications

#48
20120070154
2012-03-22

Method and apparatus for performing an automatic power adjustment for an optical signal

#49
20110069950
2011-03-24

Optical communication transmission system and method for checking performance of optical communication transmission system

#50
20100034533
2010-02-11

Wavelength division multiplexer and regenerative repeating method in wavelength division multiplexing network

#51
20090324249
2009-12-31

High loss loop back for long repeater span

#52
20090202237
2009-08-13

System and method for fault identification in optical communication systems

#53
20090185498
2009-07-23

Small form factor pluggable (SFP) status indicator

#54
20090154919
2009-06-18

Pulsed high loss loop back signalling scheme

#55
20090123146
2009-05-14

Method, device and system for group optical channel shared protection

#56
20090028550
2009-01-29

System and method using differential loop gain for fault identification in line monitoring equipment

#57
20090028549
2009-01-29

System and method for suppressing beat noise in line monitoring equipment

#58
20090010643
2009-01-08

Method and apparatus for identifying faults in a passive optical network

#59
20080050120
2008-02-28

COTDR arrangement for an undersea optical transmission system comprising multiple cable stations and multiple transmission segments

#60
17822109
2023-11-14

Phase correction in high speed coherent optical communication

#61
16510396
2020-12-08

OTDR receive device with connectivity feedback

#62
15270348
2018-01-30

Coordinated connection validation systems and methods among mated transceivers for verifying optical and data plane connectivity

#63
14834168
2016-05-24

Method and apparatus for detection and correction of channel failure in an optical transceiver system

#64
14061503
2016-07-12

Systems and methods for achieving improved eye safety of an optical transceiver