ClassID:

223883

H04B10/299 - 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; Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form Signal waveform processing, e.g. reshaping or retiming

Recent Application in this class:
#1
20260128794
2026-05-07

OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION SYSTEM

#2
20260121751
2026-04-30

Unpolarized optical signal amplification using polarization-dependent gain optical amplifiers

#3
20260051955
2026-02-19

SYSTEMS AND METHODS FOR THZ SIGNAL SOURCE

#4
20240388364
2024-11-21

OPTICAL COUPLING ELEMENT, ARRANGEMENT, AND TRANSCEIVER

#5
20240022328
2024-01-18

OPTICAL DEVICE FOR ORIENTING IN SPACE A RADIATION PATTERN FOR TRANSMISSION AND/OR A RADIATION PATTERN FOR RECEPTION OF LIGHT WAVES OF WIDE SPECTRAL BAND

#6
20220376792
2022-11-24

Re-modulation device, demodulation reception device, modulation transmission device, modulation communication system, re-modulation method, and recording medium

#7
20220102046
2022-03-31

Signal converter

#8
20220052758
2022-02-17

Hybrid communication

#9
20190313132
2019-10-10

Echo cancellation in a bidirectional communication system for out of band signaling to a user device

#10
20190238224
2019-08-01

Dynamic monitoring and calibration of nodes in an optical networking device

#11
20190179177
2019-06-13

Optoelectronic device

#12
20180351647
2018-12-06

Communication repeater system and method

#13
20180351646
2018-12-06

Relay apparatus and relay method for passive optical network

#14
20180332345
2018-11-15

Bidirectional amplifier or node supporting out-of-band signaling

#15
20180020256
2018-01-18

Bidirectional amplifier or node supporting out-of-band signaling

#16
20170346577
2017-11-30

Monitoring system, monitoring method, and storage medium having monitoring program stored therein

#17
20170264370
2017-09-14

Optical signal-processing apparatus, receiving apparatus, and optical network system

#18
20170126326
2017-05-04

Optical relay device, optical communication system, optical relay method, and storage medium

#19
20170078025
2017-03-16

Optical phase regeneration method and device

#20
20170041076
2017-02-09

ALL-OPTICAL SIGNAL REGENERATION METHOD

#21
20160065324
2016-03-03

All-optical regeneration system for optical wavelength division multiplexed communication systems

#22
20140355105
2014-12-04

Amplitude noise squeezing on multi-amplitude modulated signals

#23
20140270804
2014-09-18

Control timing synchronization method, optical transmission system, and optical transmission apparatus

#24
20130155491
2013-06-20

Method and system for regenerating and reshaping of optical signals

#25
20130089323
2013-04-11

Optimal combined 2R/3R regenerators placement method for line network topologies in optical WDM networks

#26
20130039653
2013-02-14

Device and method for processing an optical signal

#27
20130022351
2013-01-24

Optical transmitting/receiving system and timing extracting method in optical transmitting/receiving system

#28
20120263480
2012-10-18

All-optical phase-modulated data signal regeneration

#29
20120189308
2012-07-26

Optical signal-processing apparatus, receiving apparatus, and optical network system

#30
20120134683
2012-05-31

Optoelectronic processing apparatus and methods for processing constraint information

#31
20120027343
2012-02-02

WAVELENGTH DIVISION MULTIPLEX OPTICAL REGENERATION SYSTEM AND WAVELENGTH DIVISION MULTIPLEX OPTICAL REGENERATION METHOD

#32
20110268459
2011-11-03

Timing recovery in presence of optical impairments and optimization of equalization based on timing recovery moment strengths

#33
20110255874
2011-10-20

Optical signal processing apparatus, optical receiving apparatus, and optical relay apparatus

#34
20110222856
2011-09-15

All-optical 2R regeneration

#35
20110181943
2011-07-28

Wavelength conversion device and wavelength conversion method

#36
20110149385
2011-06-23

System to control an optical signal

#37
20110002697
2011-01-06

Method and apparatus for optical signal power discrimination

#38
20100303457
2010-12-02

SIGNAL QUALITY DETECTOR

#39
20100247111
2010-09-30

Optical relay system and method

#40
20100221014
2010-09-02

OPTICAL FIBER TRANSMISSION SYSTEM AND METHOD

#41
20100189446
2010-07-29

OPTICAL SIGNAL PROCESSING

#42
20100178063
2010-07-15

Optical regenerator and phase error detection unit for an optical regenerator, and method for optical regeneration

#43
20100155627
2010-06-24

Methods and apparatuses for performing common mode pulse compensation in an opto-isolator

#44
20100142959
2010-06-10

Optical waveform shaping method and optical waveform shaping apparatus

#45
20100135663
2010-06-03

Repeater and repeating method

#46
20100098432
2010-04-22

Clock regeneration for optical communications

#47
20100040367
2010-02-18

Optical node device, network control device, maintenance-staff device, optical network, and 3R relay implementation node decision method

#48
20100021105
2010-01-28

Optical signal processing device

#49
20090279164
2009-11-12

Bi-directional propagation optical signal regenerator and optical signal regenerating method utilizing optical nonlinear effect

#50
20090207489
2009-08-20

Optical processing device and optical processing method

#51
20090196608
2009-08-06

Optical node device, network control device, maintenance-staff device, optical network, and 3R relay implementation node decision method

#52
20090190925
2009-07-30

Optical transmission apparatus

#53
20090190207
2009-07-30

Optical signal processing apparatus, optical receiving apparatus, and optical relay apparatus

#54
20090154937
2009-06-18

APPARATUS FOR RESTORING CLOCK SIGNAL BY USING CIRCULATOR

#55
20090080064
2009-03-26

Wavelength conversion system, optical integrated device and wavelength conversion method

#56
20090067842
2009-03-12

OPTICAL PULSE REGENERATION BASED ON PULSE TEMPORAL SHAPING

#57
20090060525
2009-03-05

ALL-OPTICAL POLARIZATION-INDEPENDENT CLOCK RECOVERY

#58
20090052895
2009-02-26

Optical node device, network control device, maintenance-staff device, optical network, and 3R relay implementation node decision method

#59
20080316668
2008-12-25

Methods and apparatuses for performing common mode pulse compensation in an opto-isolator

#60
20080310013
2008-12-18

Semiconductor optical amplifier pulse reshaper

#61
20080232817
2008-09-25

Waveform shaping apparatus, optical transmission system, and waveform shaping method

#62
20080232808
2008-09-25

Optical waveform controlling apparatus

#63
20080212978
2008-09-04

Optical Pulse Regenerator

#64
20080164863
2008-07-10

Sampling of optical signals

#65
20080129564
2008-06-05

Optical signal processing device for A/D converter including optical encoders with nonlinear loop mirrors

#66
20080100908
2008-05-01

Structure with saturable optical absorbent for device for regenerating optical signals

#67
20080100846
2008-05-01

Systems and methods for all-optical signal regeneration based on free space optics

#68
20080085125
2008-04-10

All-optical regenerator and optical network incorporating same

#69
20070292135
2007-12-20

INTEGRATED REMOTE CONTROL SIGNALING

#70
20070286600
2007-12-13

Universal IR Repeating over Optical Fiber

#71
20070264025
2007-11-15

Los beat detector

#72
20070230967
2007-10-04

Optical transmission system

#73
20070230518
2007-10-04

Optical signal waveform shaping apparatus

#74
20070201878
2007-08-30

Repeater and repeating method

#75
20070189777
2007-08-16

Optical clock signal extraction device and optical clock signal extraction method

#76
20070153365
2007-07-05

Semiconductor optical amplifier pulse reshaper

#77
20070110450
2007-05-17

Optical signal regenerator for high bit-rate transmission systems

#78
20070098410
2007-05-03

Method and apparatus for extracting optical clock signal

#79
20070070493
2007-03-29

Apparatus and method for wavelength conversion and clock signal extraction using semiconductor optical amplifiers

#80
20070065159
2007-03-22

All-optical 2R regenerator for multi-channel communication

#81
20070064501
2007-03-22

Wavelength-maintaining optical signal regenerator

#82
20070058983
2007-03-15

Method and system for providing controlled impairments to an optical transport system

#83
20070047965
2007-03-01

Dynamic amplitude and spectral shaper in fiber laser amplification system

#84
20070036549
2007-02-15

Optical transmission apparatus

#85
20070009261
2007-01-11

Optical WDM transmission system having a distributed arrangement of regenerators

#86
20070003287
2007-01-04

All optical clock recovery

#87
20060285853
2006-12-21

Optical signal generating circuit and optical transmission line

#88
20060285200
2006-12-21

Optical signal-to-noise ratio improving device

#89
20060279835
2006-12-14

Wavelength conversion system, optical integrated device and wavelength conversion method

#90
20060238866
2006-10-26

All-optical signal processing method and device

#91
20060204248
2006-09-14

Optical regenerative amplifier for binary phase shift-keying signals

#92
20060204170
2006-09-14

Wavelength division multiplex optical regeneration system and wavelength division multiplex optical regeneration method

#93
20060171716
2006-08-03

Multi-channel all-optical signal processor

#94
20060120659
2006-06-08

3R recovery system

#95
20060110102
2006-05-25

Restoring optical pulses

#96
20060092502
2006-05-04

Signal regenerator

#97
20060078253
2006-04-13

Optical signal retiming, reshaping, and reamplifying (3R) regeneration system having monolithically integrated Mach Zehnder interferometer and self-pulsating laser diode

#98
20060056846
2006-03-16

Optical node device, network control device, maintenance-staff device, optical network, and 3R relay implementation node decision method

#99
20060045538
2006-03-02

Device and a method for processing a digital signal in a bit-to-bit polarization-interleaved format of an optical transmission system

#100
20060024065
2006-02-02

All-optical signal processing method and device

#101
20060018587
2006-01-26

Photonic integrated circuit

#102
20050286829
2005-12-29

Adiabatic frequency modulated transmitter with negative chirp

#103
20050271390
2005-12-08

Optical clock extraction circuit

#104
20050265726
2005-12-01

Optical signal generating circuit and optical transmission line

#105
20050260000
2005-11-24

Optical receiver including a system and method of controlling gain of an optical amplifier

#106
20050244162
2005-11-03

All-optical signal regeneration

#107
20050220388
2005-10-06

Optical waveform shaper

#108
20050213865
2005-09-29

Optical signal-to-noise ratio improving device

#109
20050190432
2005-09-01

Optical device for optical communication

#110
20050180758
2005-08-18

Optical regenerator for high bit rate return-to-zero transmission

#111
20050141898
2005-06-30

System for all-optical clock recovery

#112
20050078350
2005-04-14

All-optical, 3R regeneration using the Sagnac and Mach-Zehnder versions of the terahertz optical asymmetric demultiplexer (TOAD)

#113
20050053377
2005-03-10

Reconfigurable multi-channel all-optical regenerators

#114
20050053329
2005-03-10

All-optical compression systems

#115
20050052727
2005-03-10

Optical performance monitoring using a semiconductor optical amplifier

#116
20050047800
2005-03-03

Optical signal regeneration device and corresponding method

#117
20050047788
2005-03-03

Optical pulse demultiplexer

#118
20050047452
2005-03-03

Optical pulse demultiplexer and method thereof

#119
20050025496
2005-02-03

Optical/electrical converting device and method

#120
20050013524
2005-01-20

Re-generator of optical clock signal

#121
20050012985
2005-01-20

All-optical, tunable regenerator, reshaper and wavelength converter

#122
17590243
2023-04-04

Systems and methods for processing a subcarrier-multiplexed signal

#123
16296002
2022-10-11

Wave interaction processor

#124
15386910
2018-05-01

Method of short optical pulse generation

#125
14463005
2015-12-08

Systems and methods for reducing frequency spectrum losses in a bidirectional communication system