ClassID:

223969

H04B10/85 - 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; Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups - , e.g. optical power feeding or optical transmission through water Protection from unauthorised access, e.g. eavesdrop protection

Recent Application in this class:
#1
20260074804
2026-03-12

SECURED FIBER LINK SYSTEM

#2
20250373340
2025-12-04

SYSTEM FOR QUANTUM INFORMATION RETRIEVAL

#3
20250370179
2025-12-04

OPTICAL FIBER GENERATING IN USE A PHYSICAL UNCLONABLE FUNCTION, OBJECT EQUIPPED THEREWITH, AND APPARATUS FOR MANUFACTURING THEREOF

#4
20250350372
2025-11-13

OPTICAL SWITCH TO ISOLATE DATA ACCESSES IN MEMORY

#5
20250317218
2025-10-09

HYBRID CLASSICAL-QUANTUM TRANSMISSION FOR EAVESDROPPER DETECTION OVER CLASSICAL CHANNELS

#6
20250253957
2025-08-07

LIGHT-BASED DATA ENCODING AND/OR DECODING DEVICE

#7
20250233674
2025-07-17

A SECURE OPTICAL WIRELESS COMMUNICATION LINK

#8
20250184162
2025-06-05

SECURE IDENTIFIER EXCHANGE IN AN OPTICAL NETWORK

#9
20250175255
2025-05-29

TRANSMITTING AND RECEIVING DEVICE FOR QUANTUM KEY DISTRIBUTION BASED ON CHIP

#10
20250085481
2025-03-13

SECURED FIBER LINK SYSTEM

#11
20250080241
2025-03-06

FIBER SENSING CONTROL DEVICE

#12
20250080222
2025-03-06

COMMUNICATION SYSTEM, TERMINAL, CONTROL METHOD, AND RECORDING MEDIUM

#13
20250038845
2025-01-30

METHOD AND DEVICE FOR LOW-COMPLEXITY QUANTUM DIRECT COMMUNICATION USING TWO-PHOTON INTERFERENCE

#14
20250035843
2025-01-30

DETECTION DEVICE USING OPTICAL FIBER

#15
20240427555
2024-12-26

SYSTEM FOR GENERATING RANDOM NUMBERS AND METHOD THEREOF

#16
20240372713
2024-11-07

QUANTUM KEY DISTRIBUTION SYSTEM, QUANTUM KEY DISTRIBUTION METHOD, AND QUANTUM KEY DISTRIBUTION PROGRAM

#17
20240267133
2024-08-08

METHOD FOR PERFORMING QUANTUM SECURE DIRECT COMMUNICATION IN QUANTUM COMMUNICATION SYSTEM, AND APPARATUS THEREFOR

#18
20240259110
2024-08-01

DEVICES, METHODS, APPARATUSES AND MEDIA FOR COMMUNICATION

#19
20240223284
2024-07-04

Server-controlled communication system

#20
20240214190
2024-06-27

Quantum key distribution enabled intra-datacenter network

#21
20240187211
2024-06-06

TRANSMITTING ENCODED DATA ALONG TRANSMISSION MEDIUMS BASED ON COLORSPACE SCHEMES

#22
20240187098
2024-06-06

INFORMATION SCRAMBLING SYSTEMS AND METHODS

#23
20240179162
2024-05-30

PROTECTION OF COMPUTING DEVICE FROM POTENTIAL OPTICAL NETWORK INTRUSION ATTACK

#24
20240137133
2024-04-25

Secured fiber link system

#25
20240113781
2024-04-04

COMMUNICATION SYSTEM, TERMINAL, CONTROL METHOD, AND RECORDING MEDIUM

#26
20240048248
2024-02-08

APPARATUS AND METHODS TO FACILITATE SECURE SIGNAL TRANSMISSION

#27
20240004139
2024-01-04

Secured fiber link system

#28
20230403082
2023-12-14

STATION SIDE OPTICAL LINE TERMINAL AND REGISTRATION METHOD

#29
20230353255
2023-11-02

Status Notification Method, Optical Module, Network Device, and Network System

#30
20230308190
2023-09-28

METHOD AND SYSTEM FOR AUTHENTICATING AN OPTICAL FIBER KEY

#31
20230246719
2023-08-03

Light-based data encoding and/or decoding

#32
20230171003
2023-06-01

Reconfigurable quantum key distribution (QKD) hardware

#33
20230163843
2023-05-25

Method and apparatus for transmitting and receiving signals in optical wireless communication system

#34
20230155685
2023-05-18

Signal processing device

#35
20230123213
2023-04-20

Communication system, terminal, control method, and recording medium

#36
20220360337
2022-11-10

Optical communication system using mode-locked frequency comb and all-optical phase encoding for spectral and temporal encrypted and stealthy transmission, and for optical processing-gain applications

#37
20220352993
2022-11-03

Communication systems, base stations, and communication methods

#38
20220345213
2022-10-27

Identifying link fingerprint anomalies in real-time in an all-photonics network

#39
20220263587
2022-08-18

System and method to prevent unauthorized voice detection via fiber links

#40
20220255634
2022-08-11

Wireless communication system, wireless communication method and wireless terminal equipment

#41
20220240052
2022-07-28

Method for locating a field device with a wireless interface

#42
20220209942
2022-06-30

Quantum key distribution enabled intra-datacenter network

#43
20220137928
2022-05-05

Information processing device

#44
20220069911
2022-03-03

Waveform transmission and event detection

#45
20220069905
2022-03-03

Communication system, terminal, control method, and recording medium

#46
20220038255
2022-02-03

Transmitting encoded data along transmission mediums based on colorspace schemes

#47
20210367680
2021-11-25

System and method to prevent unauthorized voice detection via fiber links

#48
20210359756
2021-11-18

Light-Interactive System And Light-Interactive Control Method

#49
20210344426
2021-11-04

Fibre-based communication

#50
20210266733
2021-08-26

SYSTEMS AND METHODS FOR OUT-OF-BAND TRANSFER OF INFORMATION TO MOBILE DEVICES

#51
20210242957
2021-08-05

Signal processing device

#52
20210126778
2021-04-29

Quantum key distribution in optical communications network

#53
20210075510
2021-03-11

Optical communication devices based on concentric space-division multiplexed optical fiber

#54
20210044377
2021-02-11

Light-based data encoding and/or decoding device

#55
20210006337
2021-01-07

Single photons source and key distribution

#56
20200389299
2020-12-10

QUANTUM SECURITY SYSTEMS

#57
20200336293
2020-10-22

Transmitting encoded data along transmission mediums based on colorspace schemes

#58
20200326481
2020-10-15

Secured fiber link system

#59
20200287624
2020-09-10

System and method for providing optically coding of information combining color and luminosity

#60
20200266977
2020-08-20

Long-haul high rate quantum key distribution

#61
20200259584
2020-08-13

Submarine branching apparatus, optical submarine cable system, and optical communication method

#62
20200186248
2020-06-11

Concentric fiber for space-division multiplexed optical communications and method of use

#63
20200177273
2020-06-04

Optical transceiver

#64
20200162172
2020-05-21

Physical-Layer Security for Coherent Communications System

#65
20200162154
2020-05-21

Frequency spectrum system security

#66
20200153507
2020-05-14

Communication system, terminal, control method, and recording medium

#67
20200059358
2020-02-20

Apparatus and method for quantum enhanced physical layer security

#68
20200044750
2020-02-06

Signal receiving apparatus and method

#69
20200021368
2020-01-16

Optical wireless communication system for a vehicle

#70
20200014485
2020-01-09

Fiber optic light intensity encryption

#71
20190379463
2019-12-12

Quantum communication network

#72
20190319788
2019-10-17

SYSTEM AND METHOD FOR USE IN OPTICAL COMMUNICATION

#73
20190278947
2019-09-12

Secure crypto module including optical security pathway

#74
20190278946
2019-09-12

Secure crypto module including optical security pathway

#75
20190245615
2019-08-08

Secured fiber link system

#76
20190236920
2019-08-01

Office building security system using fiber sensing

#77
20190215063
2019-07-11

System and method for providing optically coded information

#78
20190208601
2019-07-04

Optical module

#79
20190199465
2019-06-27

Method and apparatus for cyber security using light polarization

#80
20190199449
2019-06-27

Security over optical transport network beyond 100G

#81
20190190613
2019-06-20

Method of frequency encoding beacons for dismounted identification, friend or foe

#82
20190190596
2019-06-20

Optical line card with optical signal power monitor

#83
20190181948
2019-06-13

Fiber optic telecommunications card with security detection

#84
20190097988
2019-03-28

Communication device and communication method

#85
20190081709
2019-03-14

Secured fiber link system

#86
20190074896
2019-03-07

Monitoring a fiber optic cable for intrusion using a weighted algorithm

#87
20190068285
2019-02-28

Optical module, optical module system and monitor method using the same

#88
20190044713
2019-02-07

Random number sequence generation apparatus, quantum encryption transmitter, and quantum encryption communication system

#89
20190007138
2019-01-03

Concentric fiber for space-division multiplexed optical communications and method of use

#90
20180367223
2018-12-20

Systems and methods for concealing waveform properties

#91
20180343116
2018-11-29

Long-haul high rate quantum key distribution

#92
20180295700
2018-10-11

Optical module

#93
20180295116
2018-10-11

Simplified encryption key generation in optical networks

#94
20180294885
2018-10-11

Optical module

#95
20180292620
2018-10-11

Optical module

#96
20180292619
2018-10-11

Optical module

#97
20180292078
2018-10-11

Optical module

#98
20180241576
2018-08-23

Photon-based CA authentication method and system

#99
20180241553
2018-08-23

Optical quantum communication system

#100
20180241480
2018-08-23

Hyper-entangled photon server system and associated methods

#101
20180234201
2018-08-16

Fiber optic light intensity encryption

#102
20180212687
2018-07-26

Cyber-retro-reflector technology

#103
20180212677
2018-07-26

Optical line card for wavelength division multiplexed signals

#104
20180205462
2018-07-19

System and method for processing an electromagnetic signal

#105
20180205453
2018-07-19

Optical transmission/reception device, optical communication system, and optical communication method

#106
20180198608
2018-07-12

Long-haul high rate quantum key distribution

#107
20180191496
2018-07-05

High-speed autocompensation scheme of quantum key distribution

#108
20180176198
2018-06-21

Dual physical channel secure connection

#109
20180167209
2018-06-14

Fibre-optic communication based on encoded frequency-shifted light

#110
20180159619
2018-06-07

Secured fiber link system

#111
20180150271
2018-05-31

Information processing apparatus, printer, and non-transitory computer readable medium

#112
20180145952
2018-05-24

Protective apparatus and network cabling apparatus for the protected transmission of data

#113
20180123703
2018-05-03

Broadband communication network architecture with train control network and train serving network combined, and communication method thereof

#114
20180019826
2018-01-18

Secure open-air communication system utilizing multichannel decoyed transmission

#115
20180013556
2018-01-11

SYSTEM, APPARATUS AND METHOD FOR ENCRYPTING OVERLAY NETWORKS USING QUANTUM KEY DISTRIBUTION

#116
20170373753
2017-12-28

System and method for providing optically coded information

#117
20170373747
2017-12-28

Fiber optic telecommunications card with energy level monitoring

#118
20170277913
2017-09-28

Secure crypto module including optical security pathway

#119
20170272152
2017-09-21

Fault localization and fiber security in optical transponders

#120
20170257163
2017-09-07

Rogue optical network interface device detection

#121
20170254974
2017-09-07

Node apparatus and node apparatus control method

#122
20170244478
2017-08-24

Secured fiber link system

#123
20170237507
2017-08-17

COHERENT CHANNEL MIXING FOR OBFUSCATED OPTICAL COMMUNICATIONS

#124
20170230337
2017-08-10

System and method for generating an obfuscated optical signal

#125
20170222731
2017-08-03

Multi-transmitter quantum optical communication system and method

#126
20170222723
2017-08-03

Optical transmitting device, optical communication system and optical transmission method

#127
20170155499
2017-06-01

Communication apparatus and communication method for successive quantum key distribution

#128
20170155455
2017-06-01

Fiber optic encryption

#129
20170141854
2017-05-18

Secure open-air communication system utilizing multichannel decoyed transmission

#130
20170111121
2017-04-20

Optical communication method and optical communication system

#131
20170108650
2017-04-20

Untappable secure optical fiber link component

#132
20170104546
2017-04-13

Fiber-based communication

#133
20170093503
2017-03-30

Secure Data Transmission Via Spatially Multiplexed Optical Signals

#134
20170034135
2017-02-02

Making a secure connection over insecure lines more secure

#135
20170005789
2017-01-05

Optical cryptography for high speed coherent systems

#136
20160337045
2016-11-17

Reception and generation of light

#137
20160315715
2016-10-27

Electronic quantum information probability transfer

#138
20160269107
2016-09-15

Fiber optic telecommunications card with energy level monitoring

#139
20160233964
2016-08-11

Quantum communication system and a quantum communication method

#140
20160173479
2016-06-16

Terminal Authentication Method, Apparatus, and System in Passive Optical Network

#141
20160173200
2016-06-16

MULTI-CHANNEL VISIBLE LIGHT COMMUNICATIONS SYSTEMS AND METHODS

#142
20160156466
2016-06-02

SYSTEM AND METHOD FOR QUANTUM KEY DISTRIBUTION OVER LARGE DISTANCES

#143
20160156421
2016-06-02

System and method for providing active RF shielding

#144
20160156420
2016-06-02

Access control devices and a transceiver device

#145
20160156419
2016-06-02

Transceiver device, access control devices, a transmitter device and a receiver device

#146
20160149867
2016-05-26

Adaptive traffic encryption for optical networks

#147
20160149638
2016-05-26

Optical monitoring in an optical communications network

#148
20160134632
2016-05-12

SECURE INSTALLATION OF NETWORK DEVICES USING BEACONING SYSTEMS AND METHODS

#149
20160127050
2016-05-05

Pairing device

#150
20160119056
2016-04-28

Security monitoring for optical network

#151
20160028542
2016-01-28

Method for processing double click event for securing safety in quantum key distribution system

#152
20160013937
2016-01-14

Method and apparatus for generating raw key using double buffering scheme in implementing quantum key distribution protocol

#153
20150326958
2015-11-12

Rogue optical network interface device detection

#154
20150326591
2015-11-12

Rogue optical network interface device detection

#155
20150326311
2015-11-12

Rogue optical network interface device detection

#156
20150318918
2015-11-05

Communication network element and method of mitigating an optical jamming attack against an optical communication system

#157
20150287300
2015-10-08

Fiber optic security systems including a local control node and a remote control unit, and methods of using the same

#158
20150256257
2015-09-10

Secure data transmission using spatial multiplexing

#159
20150215116
2015-07-30

Encryption and decryption method and device

#160
20150135319
2015-05-14

Security monitoring for optical network

#161
20140359297
2014-12-04

Systems and methods for intermediate message authentication in a switched-path network

#162
20140186033
2014-07-03

SECURE DATA TRANSMISSION VIA SPATIALLY MULTIPLEXED OPTICAL SIGNALS

#163
20140161402
2014-06-12

Fiber optic assembly with loopback

#164
20140146969
2014-05-29

Spectral and temporal stealthy fiber optic communication using sampling and phase encoding detection systems

#165
20140093242
2014-04-03

Security in multiwavelength optical networks

#166
20130259488
2013-10-03

Reactive metal optical security device and methods of fabrication and use

#167
20130182993
2013-07-18

Monitoring eDC polarization inverse filter coefficients to identify real-time physical intrusion into a core or metro optical network

#168
20130162432
2013-06-27

Fiber optic security systems and methods of using the same

#169
20130148959
2013-06-13

Fiber optic telecommunications card with energy level monitoring

#170
20130148957
2013-06-13

Fiber optic telecommunications card with security detection

#171
20130039646
2013-02-14

Optical monitoring in a communications network element

#172
20130034356
2013-02-07

Rogue Optical Network Unit Mitigation in Multiple-Wavelength Passive Optical Networks

#173
20130010951
2013-01-10

Secure open-air communication system utilizing multichannel decoyed transmission

#174
20120275782
2012-11-01

Method and apparatus for preventing signal interference in a passive optical network

#175
20120263476
2012-10-18

System and method for establishing secure communications between transceivers in undersea optical communication systems

#176
20120224846
2012-09-06

Fault localization and fiber security in optical transponders

#177
20120177365
2012-07-12

Secure data transmission using spatial multiplexing

#178
20120177065
2012-07-12

Secure Data Transmission Using Spatial Multiplexing

#179
20120148233
2012-06-14

Method and device for monitoring a detachable fiber-optic connection, especially in a fiber-optic transmission device or system

#180
20120121260
2012-05-17

System for intercepting signals to be transmitted over a fiber optic network and associated method

#181
20120076453
2012-03-29

Securing an optical communications network path by suppression of learned ambient disturbances

#182
20110268436
2011-11-03

Secure fiber optic communication systems and methods

#183
20110239266
2011-09-29

Fiber to the premise service disconnect via macro-bending loss

#184
20110228939
2011-09-22

SYSTEM AND METHODS FOR OCDM-BASED OPTICAL ENCRYPTION USING SUBSETS OF PHASE-LOCKED FREQUENCY LINES

#185
20110217045
2011-09-08

CROSSTALK MITIGATION IN OPTICAL TRANSCEIVERS

#186
20110206369
2011-08-25

Fiber optic security systems and methods of using the same

#187
20110200192
2011-08-18

Secure key distribution for optical code division multiplexed based optical encryption

#188
20110176809
2011-07-21

OPTICAL TRANSMISSION SYSTEM AND OPTICAL TRANSMISSION METHOD

#189
20110102773
2011-05-05

Identification apparatus of optical cable and identification method

#190
20110096925
2011-04-28

Optical fiber secure communication apparatus and data encryption method therefor

#191
20110033044
2011-02-10

Secure open-air communication system utilizing multi-channel decoyed transmission

#192
20110019997
2011-01-27

System for intercepting signals to be transmitted over a fiber optic network and associated method

#193
20100329693
2010-12-30

Multi dimension high security communication over multi mode fiber waveguide

#194
20100302531
2010-12-02

Method and apparatus for fiber optic signature recognition

#195
20100254649
2010-10-07

Monitoring eDC polarization inverse filter coefficients to identify real-time physical intrusion into a core or metro optical network

#196
20100196015
2010-08-05

Technique for securing transmission of data along an optical communication line

#197
20100119225
2010-05-13

Fiber optic telecommunications card with security detection

#198
20100074444
2010-03-25

Method and System for OCDM-Based Photonic Layer Security Robustness to Spoof Data Integrity

#199
20100054657
2010-03-04

Intrusion detection system for use on single mode optical fiber using a cost reduced polarimeter

#200
20090310964
2009-12-17

Optical communication system and optical line terminating apparatus

#201
20090148159
2009-06-11

Method and apparatus for securing fiber in an optical network

#202
20090136238
2009-05-28

Security over an optical fiber link

#203
20090129778
2009-05-21

Raman cancellation and management in CATV transport and distribution via RF spectrum inversion

#204
20090034737
2009-02-05

Diamond nanocrystal single-photon source with wavelength converter

#205
20090028552
2009-01-29

System and method for wavelength monitoring and control

#206
20080285753
2008-11-20

System for passive scrambling and unscrambling of an optical signal

#207
20080205882
2008-08-28

Extended range for CWDM optical transport

#208
20080152343
2008-06-26

System for intercepting signals to be transmitted over a fiber optic network and associated method

#209
20080130887
2008-06-05

Secure Data Communication Apparatus and Method

#210
20080085121
2008-04-10

Optical transponder for secure optical communications and optical quadrature-measuring instrument

#211
20080062407
2008-03-13

Method and apparatus for increasing the security of the physical fiber plant by polarization monitoring

#212
20080025732
2008-01-31

Optical transmitter and optical transmission method

#213
20080018884
2008-01-24

Intrusion Detection in Optical Fiber Networks

#214
20070280687
2007-12-06

Method and system for power management in optical networks

#215
20070264012
2007-11-15

Identifying or locating waveguides

#216
20070201692
2007-08-30

Data transmission apparatus, data transmission method

#217
20070116400
2007-05-24

Method of high order mode excitation for multimode intrusion detection

#218
20070092176
2007-04-26

Remote location of active section of fiber in a multimode intrusion detection system

#219
20070086694
2007-04-19

Monitoring individual fibers of an optical cable for intrusion

#220
20070086693
2007-04-19

Intrusion detection system for a multimode optical fiber using a bulk optical wavelength division multiplexer for maintaining modal power distribution

#221
20070069893
2007-03-29

Polarization-based sensor for secure fiber optic network and other security applications

#222
20070064151
2007-03-22

System and implementation for IF compensation for video decoders

#223
20070019961
2007-01-25

NETWORK SECURITIZATION

#224
20060209766
2006-09-21

Secure open-air communication system utilizing multi-channel decoyed transmission

#225
20060193636
2006-08-31

Laser oscillator, optical communication method and system

#226
20060171719
2006-08-03

Optical transmission system having optimized filter wavelength offsets

#227
20060171629
2006-08-03

Method for removing cross-talk in wavelength division multiplexed passive optical network

#228
20060153520
2006-07-13

Intrusion detection system for use on single mode optical fiber using a polarimeter

#229
20060153491
2006-07-13

Intrusion detection system for use on single mode optical fiber using a simplified polarimeter

#230
20060140639
2006-06-29

Methods and apparatus for Raman crosstalk reduction via idle data pattern control

#231
20060115273
2006-06-01

Wavelength multiplex transmission systems

#232
20060072922
2006-04-06

Method for polarization-based intrusion monitoring in fiberoptic links

#233
20060067693
2006-03-30

Optical transmission system and optical transmission method

#234
20060002720
2006-01-05

Optical receiving unit reducing cross talk between optical transmitting unit and optical transmitting/receiving apparatus installing the same

#235
20050174563
2005-08-11

Active fiber loss monitor and method

#236
20050158055
2005-07-21

Optical communication system and optical communication method having confidentiality

#237
20050152700
2005-07-14

Fibre optic communications network

#238
20050129408
2005-06-16

Optical transmission system for removing skew between optical channels

#239
20050095994
2005-05-05

Transmitting and receiving device

#240
17342151
2024-01-30

Systems and methods for measurement-device-independent quantum key distribution

#241
17003726
2023-09-12

Systems and methods for preventing lightbeam access to microphones of smart devices

#242
16698798
2020-10-13

Systems and methods for protecting users

#243
16388398
2019-12-31

Transmitting encoded data along transmission mediums based on colorspace schemes

#244
16352935
2020-04-28

Secure optical communication and target designation using frequency tuning, hopping , and encoding

#245
15337691
2018-01-23

Group permission based Li-Fi file transfer

#246
15279706
2019-07-02

Secure fiber optic seals enabled by quantum optical communication concepts

#247
15232857
2019-04-02

Optical identification beacon

#248
14642514
2016-08-09

Electronic quantum information probability transfer

#249
14642473
2016-05-24

Electronic quantum information probability transfer