Patents-Review.com
ClassID:

223933 ⎘

H04B10/6162 - 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; Receivers; Coherent receivers; Details of the electronic signal processing in coherent optical receivers Compensation of polarization related effects, e.g., PMD, PDL

Recent Application in this class:
#1
20260149527
2026-05-28

SIGNAL PROCESSING CIRCUIT, RECEIVER, AND SIGNAL PROCESSING METHOD

 #2
20260113124
2026-04-23

SIGNAL PROCESSING CIRCUIT, OPTICAL RECEIVER, AND OPTICAL TRANSMISSION SYSTEM

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20250350369
2025-11-13

OPTICAL RECEIVER AND OPTICAL RECEIVING METHOD

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20250300733
2025-09-25

POLARIZATION FLUCTUATION DETECTION METHOD, POLARIZATION FLUCTUATION DETECTION APPARATUS, AND POLARIZATION FLUCTUATION DETECTION SYSTEM

 #5
20250080232
2025-03-06

DECODING METHOD USING POLARIZATION TIME BLOCK CODING AND DECODING DEVICE FOR PERFORMING THE METHOD

 #6
20250038858
2025-01-30

DIGITAL SIGNAL PROCESSING CIRCUIT, METHOD, RECEIVER, AND COMMUNICATION SYSTEM

 #7
20250007618
2025-01-02

POLARIZATION FLUCTUATION MONITORING APPARATUS, COMMUNICATION SYSTEM, POLARIZATION FLUCTUATION MONITORING METHOD, AND PROGRAM

 #8
20240187105
2024-06-06

COHERENT OPTICAL COMMUNICATION SYSTEM USING POLARIZATION TIME BLOCK CODE

 #9
20240129041
2024-04-18

OPTICAL RELAY APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND OPTICAL RELAY METHOD

 #10
20240063918
2024-02-22

METHOD FOR POLARIZATION COMPENSATION AND FREE-SPACE OPTICAL COMMUNICATION SYSTEM FOR AIRCRAFT

 #11
20240063917
2024-02-22

Coherent receiver with polarization diversity clock detection

 #12
20240007195
2024-01-04

ADAPTIVE EQUALIZER, STEP SIZE DERIVATION METHOD AND PROGRAM

 #13
20230421255
2023-12-28

INTEGRATED COHERENT RECEIVER FOR DISTRIBUTED FIBER SENSING APPARATUS

 #14
20230396341
2023-12-07

Electronic Devices with High Frequency Polarization Optimization

 #15
20230291480
2023-09-14

Photonic integrated circuit with independent unit cells having multi-polarization sensitivity

 #16
20230198630
2023-06-22

Optical receiving device and optical receiving method

 #17
20230179307
2023-06-08

Method for nonlinear compensation of coherent high-capacity high-order qam system

 #18
20230170994
2023-06-01

Adaptive equalizer, equalization method, and optical communication system

 #19
20230163857
2023-05-25

Signal processing method and apparatus, and coherent receiver

 #20
20230106338
2023-04-06

Optical transmission system and characteristic estimation method

 #21
20230101322
2023-03-30

Electronic devices with high frequency polarization optimization

 #22
20230090061
2023-03-23

Systems, devices, and methods for dual polarization recovery

 #23
20230064847
2023-03-02

Optical demultiplexing device and transmission device

 #24
20220393772
2022-12-08

Tap centerer method and structure for coherent optical receiver

 #25
20220303003
2022-09-22

Signal processing apparatus, signal processing method, and program

 #26
20220271844
2022-08-25

Coherent detection with optimised local oscillator

 #27
20220255631
2022-08-11

Polarization change tracking apparatus, processing apparatus for received signal and methods thereof

 #28
20220255630
2022-08-11

Polarization recovery apparatus and method thereof and optical receiver

 #29
20220255629
2022-08-11

Chromatic dispersion equalizer adaption systems and methods

 #30
20220149955
2022-05-12

Analog coherent signal processing systems and methods

 #31
20220116120
2022-04-14

Optical receiver including constrained frequency-domain circuitry with adaptive equalization

 #32
20220085894
2022-03-17

Modulation formats with fractional spectral efficiency

 #33
20210344424
2021-11-04

Adaptive equalization device, adaptive equalization method, and communication device

 #34
20210336695
2021-10-28

Integrated coherent receiver for distributed fiber sensing apparatus

 #35
20210320742
2021-10-14

Polarization-dependent loss determining method, detection system, and optical signal transmission structure

 #36
20210218476
2021-07-15

Digital coherent receiver and digital coherent receiving method

 #37
20210167864
2021-06-03

Chromatic dispersion equalizer adaption systems and methods

 #38
20210159986
2021-05-27

Tap centerer method and structure for coherent optical receiver

 #39
20210152255
2021-05-20

Tap stabilizer method and structure for coherent optical receiver

 #40
20210143909
2021-05-13

Enhancement of optical communications and optical fiber performance

 #41
20210135766
2021-05-06

Analog coherent signal processing systems and methods

 #42
20210135765
2021-05-06

Optical receiver, light signal receiving method, and data reproduction device

 #43
20210126714
2021-04-29

Backward propagation with compensation of some nonlinear effects of polarization mode dispersion

 #44
20210044360
2021-02-11

Probabilistic shaping techniques for high performance coherent optical transceivers

 #45
20200403710
2020-12-24

Mode demultiplexing hybrid apparatus, methods, and applications

 #46
20200382235
2020-12-03

Optical communication device

 #47
20200374011
2020-11-26

Low power coherent receiver for short-reach optical communication

 #48
20200350990
2020-11-05

Enhancement of optical communications and optical fiber performance

 #49
20200328818
2020-10-15

Systems and methods for analog electronic polarization control for coherent optical receivers

 #50
20200322050
2020-10-08

Optical communication link identifier

 #51
20200295843
2020-09-17

Method and apparatus for monitoring the change of state of polarization and a receiver

 #52
20200295842
2020-09-17

Impairment compensation techniques for high performance coherent optical transceivers

 #53
20200266901
2020-08-20

Apparatus and method for estimating polarization skew

 #54
20200244372
2020-07-30

Probabilistic shaping techniques for high performance coherent optical transceivers

 #55
20200235842
2020-07-23

Systems and methods for carrier phase recovery

 #56
20200235821
2020-07-23

COHERENT OPTICAL RECEIVER TESTING

 #57
20200204267
2020-06-25

Reduced complexity constrained frequency-domain block LMS adaptive equalization for coherent optical receivers

 #58
20200162172
2020-05-21

Physical-Layer Security for Coherent Communications System

 #59
20200127737
2020-04-23

Data transmission method, apparatus, and system

 #60
20200127736
2020-04-23

OSNR margin monitoring for optical coherent signals

 #61
20200119814
2020-04-16

Adaptive equalization filter and signal processing device

 #62
20200112375
2020-04-09

Forward and backward propagation methods and structures for coherent optical receiver

 #63
20200106521
2020-04-02

Apparatus and method for monitoring change of polarization state resulted from optical link and optical receiver

 #64
20200092011
2020-03-19

Timing recovery for optical coherent receivers in the presence of polarization mode dispersion

 #65
20200076511
2020-03-05

Apparatus and method for beamforming communication

 #66
20200067602
2020-02-27

Tap centerer method and structure for coherent optical receiver

 #67
20200021366
2020-01-16

Tap stabilizer method and structure for coherent optical receiver

 #68
20190349093
2019-11-14

Systems and methods for analog electronic polarization control for coherent optical receivers

 #69
20190334627
2019-10-31

Clock recovery for band-limited optical channels

 #70
20190296832
2019-09-26

System and method for adaptive channel equalization in a time varying channel

 #71
20190296824
2019-09-26

Dynamic range for a heterodyne optical channel monitor

 #72
20190280779
2019-09-12

Signal processing circuit and optical receiving device

 #73
20190260477
2019-08-22

Reduced complexity constrained frequency-domain block LMS adaptive equalization for coherent optical receivers

 #74
20190253153
2019-08-15

REDUCTION OF PDL PENALTY USING TRANSMIT SIGNAL PROCESSING ON SUB-CARRIER MULTIPLEXED SIGNALS

 #75
20190207683
2019-07-04

Phase noise compensation apparatus, demodulation apparatus, communication apparatus, communication system, and phase noise compensation method

 #76
20190190616
2019-06-20

Coherent optical receiver testing

 #77
20190181962
2019-06-13

Coherent optical receiver with improved noise performance for optical fiber communication links

 #78
20190120663
2019-04-25

Optical fiber sensor and optical fiber sensor system

 #79
20190115984
2019-04-18

Timing recovery for optical coherent receivers in the presence of polarization mode dispersion

 #80
20190097721
2019-03-28

Method and apparatus for monitoring polarization dependent loss, receiver and communication system

 #81
20190081726
2019-03-14

Processing parameter and resource sharing architecture for superchannel based transmission systems

 #82
20190074908
2019-03-07

COHERENT OPTICAL RECEIVER FOR MEDIUM- AND SHORT-REACH LINKS

 #83
20190074903
2019-03-07

Transmission characteristic compensation apparatus, transmission characteristic compensation method, and communication apparatus

 #84
20190052368
2019-02-14

Tap centerer method and structure for coherent optical receiver

 #85
20190049743
2019-02-14

Optical amplifier and optical switch device

 #86
20190036615
2019-01-31

Tap stabilizer method and structure for coherent optical receiver

 #87
20190036614
2019-01-31

Forward and backward propagation methods and structures for coherent optical receiver

 #88
20190013876
2019-01-10

Coherent optical reception device

 #89
20180367219
2018-12-20

Backward propagation with compensation of some nonlinear effects of polarization mode dispersion

 #90
20180287712
2018-10-04

Optical communication with some compensation of nonlinear distortions

 #91
20180278336
2018-09-27

Communication apparatus and method of controlling transmission signal

 #92
20180252614
2018-09-06

Chromatic dispersion estimating circuit, optical reception device and chromatic dispersion amount estimating method

 #93
20180212685
2018-07-26

RECEIVING APPARATUS AND SETTING METHOD

 #94
20180159652
2018-06-07

Signal processing in an optical receiver

 #95
20180159635
2018-06-07

Chromatic dispersion detection method and device for optical transmission network and storage medium

 #96
20180145767
2018-05-24

Method and apparatus for despreading in optical domain

 #97
20180138985
2018-05-17

System and method of de-skewing electrical signals

 #98
20180123700
2018-05-03

Method and apparatus for estimating polarization dependent loss and receiving device

 #99
20180115369
2018-04-26

Timing recovery for optical coherent receivers in the presence of polarization mode dispersion

 #100
20180083699
2018-03-22

OSNR margin monitoring for optical coherent signals

 #101
20180062760
2018-03-01

Single-chip transceiver with electronic dispersion compensation for coherent optical channels

 #102
20180062759
2018-03-01

Methods for compensation of cross-polarization modulation (XPolM) impairments in coherent optical communications

 #103
20180041280
2018-02-08

High-speed pluggable optical transceivers with advanced functionality

 #104
20180034552
2018-02-01

Signal processing device used in optical receiver and signal processing method

 #105
20170366274
2017-12-21

Receiving apparatus and setting method

 #106
20170302385
2017-10-19

Timing recovery for optical coherent receivers in the presence of polarization mode dispersion

 #107
20170264468
2017-09-14

Frequency domain equalizer for optical communications

 #108
20170254957
2017-09-07

Polarization dispersion adder and optical receiver

 #109
20170163350
2017-06-08

Iterative nonlinear compensation

 #110
20170126353
2017-05-04

Wavelength shift elimination during spectral inversion in optical networks

 #111
20170104537
2017-04-13

Transimpedance amplifier, and related integrated circuit and optical receiver

 #112
20170078017
2017-03-16

OSNR margin monitoring for optical coherent signals

 #113
20170054507
2017-02-23

High-speed pluggable optical transceivers with advanced functionality

 #114
20170048002
2017-02-16

System and method for optical receiver

 #115
20170012803
2017-01-12

Adaptive equalization circuit, digital coherent receiver, and adaptive equalization method

 #116
20160329970
2016-11-10

Clock recovery method, device and system and computer storage medium

 #117
20160301520
2016-10-13

System and method of de-skewing electrical signals

 #118
20160261398
2016-09-08

Clock recovery method and device

 #119
20160261347
2016-09-08

Frequency domain coded modulation with polarization interleaving for fiber nonlinearity mitigation in digital sub-carrier coherent optical communication systems

 #120
20160218813
2016-07-28

Polarization mode dispersion (PMD) tolerant optical signaling

 #121
20160197681
2016-07-07

Efficient processing of high data rate signals with a configurable frequency domain equalizer

 #122
20160112065
2016-04-21

Method for implementing turbo equalization compensation, turbo equalizer and system

 #123
20160080084
2016-03-17

Digital optical spectral shaping

 #124
20160065326
2016-03-03

Optical transmission/reception system, transmitter, receiver, and optical transmission/reception method

 #125
20160036554
2016-02-04

Signal processing device and signal processing method for optical polarization multiplexed signal

 #126
20150381286
2015-12-31

Optical receiver for quadrature-phase-shift-keying and quadrature-duobinary signals

 #127
20150333837
2015-11-19

Tracking nonlinear cross-phase modulation noise and linewidth induced jitter in coherent optical fiber communication links

 #128
20150280856
2015-10-01

Polarization state detector, optical transmitter, and optical receiver

 #129
20150280853
2015-10-01

Configurable frequency domain equalizer for dispersion compensation of multiple sub-carriers

 #130
20150280833
2015-10-01

Accurate calculation of polarization mode dispersion using blind equalization

 #131
20150256268
2015-09-10

Adaptive equalization in coherent receivers using a Stokes space update algorithm

 #132
20150244456
2015-08-27

Apparatus, method and computer program operable to determine estimates

 #133
20150229409
2015-08-13

System and method for a multi-wavelength coherent receiver

 #134
20150229401
2015-08-13

Optical receiver and signal processing method for optical receiver

 #135
20150222368
2015-08-06

Methods and apparatus for coherent duobinary shaped PM-QPSK signal processing

 #136
20150215049
2015-07-30

Method for adjusting optical receiver and apparatus for adjusting polarization of optical receiver

 #137
20150180586
2015-06-25

Optical receiving device

 #138
20150171972
2015-06-18

Optical receiver

 #139
20150139667
2015-05-21

Optical receiver circuit

 #140
20150043927
2015-02-12

Combining I-Q and/or PolMux optical receiver to enable single detector

 #141
20140376917
2014-12-25

Systems and methods for the compensation of nonlinear cross polarization and cross phase modulation in dual polarization coherent channels

 #142
20140369686
2014-12-18

Systems and methods for noise tolerant signal processing in pilot assisted data receivers

 #143
20140369684
2014-12-18

Method and apparatus for digital polarization scrambling in coherent optical communication systems employing both transmit and receive digital signal processing

 #144
20140341587
2014-11-20

Optical transmission system and optical transmission method

 #145
20140328602
2014-11-06

Digital coherent receiver, optical reception system, and optical reception method

 #146
20140328585
2014-11-06

Equalization signal processor, optical receiver including the same, and method for equalization signal processing

 #147
20140301743
2014-10-09

Light receiving device and light receiving method

 #148
20140226971
2014-08-14

System and method for compensating signal degradation in dual polarization optical systems

 #149
20140212149
2014-07-31

Soft decoding of data in a coherent optical receiver

 #150
20140178081
2014-06-26

Signal processing circuit, signal processing method, optical receiver and optical communication system

 #151
20140086594
2014-03-27

Optical receiver having a signal-equalization capability

 #152
20140079407
2014-03-20

Updating apparatus and method for equalizer coefficient, receiver and otpical communication system

 #153
20140064102
2014-03-06

Systems and methods for noise tolerant signal processing in pilot assisted data receivers

 #154
20140050476
2014-02-20

Systems and methods for the compensation of nonlinear cross polarization and cross phase modulation in dual polarization coherent channels

 #155
20130287398
2013-10-31

Multi-channel optical transceiver with offset quadrature amplitude modulation

 #156
20130259493
2013-10-03

Signal framing in a coherent optical receiver

 #157
20130251379
2013-09-26

Adaptive equalization in coherent fiber optic communication

 #158
20130251370
2013-09-26

Optical receiver, polarization separation device and polarization separating method

 #159
20130243420
2013-09-19

Method and apparatus of using joint timing recovery for a coherent optical system

 #160
20130202021
2013-08-08

System and method for polarization de-multiplexing in a coherent optical receiver

 #161
20130045015
2013-02-21

METHOD AND ARRANGEMENT FOR SIGNAL PROCESSING IN A COMMUNICATION SYSTEM

 #162
20120294629
2012-11-22

Method for improving the performance of digital coherent optical receiver using single ended photo-detection

 #163
20120263464
2012-10-18

Adaptive cross-polarization modulation cancellers for coherent optical communication systems

 #164
20120128376
2012-05-24

PMD-insensitive method of chromatic dispersion estimation for a coherent receiver

 #165
20120114341
2012-05-10

System and method for frequency-domain chromatic dispersion and polarization mode dispersion compensation with time-domain channel estimation

 #166
20120096061
2012-04-19

Efficiently update coefficients of an adaptive filter

 #167
20120087680
2012-04-12

Method for carrier frequency recovery and optical intradyne coherent receiver

 #168
20120076491
2012-03-29

Average length magnitude detecting apparatus, and method

 #169
20120002979
2012-01-05

Method and apparatus for polarization-division-multiplexed optical receivers

 #170
20120002977
2012-01-05

Adaptive equalization in coherent fiber optic communication

 #171
20110255879
2011-10-20

Electronic nonlinearity compensation for optical transmission systems

 #172
20110194855
2011-08-11

Superimposed training and digital filtering coherent optical receivers

 #173
20110182589
2011-07-28

Optical transmission and reception system, and optical receiver

 #174
20110176815
2011-07-21

Multi-channel optical transceiver with offset quadrature amplitude modulation

 #175
20110170881
2011-07-14

Light receiving device and light receiving method

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20110142449
2011-06-16

Method and apparatus for polarization-division-multiplexed optical coherent receivers

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20110103795
2011-05-05

Soft decoding of data in a coherent optical receiver

 #178
20110033182
2011-02-10

Spectral efficiency estimation in coherent receivers

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20110008059
2011-01-13

Digital equalization apparatus and method for coherent optical receiver

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20100296819
2010-11-25

Optical Receivers and Communication Systems

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20100266291
2010-10-21

System and method for coherent detection of optical signals

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20100232805
2010-09-16

Local oscillator frequency offset compensation in a coherent optical signal receiver

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20100232788
2010-09-16

Dual stage carrier phase estimation in a coherent optical signal receiver

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20100221020
2010-09-02

Adaptive polarization tracking and equalization in coherent optical receivers

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20100209121
2010-08-19

Signal processing device and optical receiving device

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20100196009
2010-08-05

Polarization independent frequency domain equalization (FDE) for chromatic dispersion (CD) compensation in PolMux coherent systems

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20100142952
2010-06-10

Adaptive crossing frequency domain equalization (FDE) in digital PolMux coherent systems

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20100122003
2010-05-13

RING-BASED HIGH SPEED BUS INTERFACE

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20100119241
2010-05-13

ADAPTIVE FREQUENCY DOMAIN EQUALIZATION WITHOUT CYCLIC PREFIXES

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20100092181
2010-04-15

Low conversion rate digital dispersion compensation

 #191
20100074632
2010-03-25

Method for improving the performance of digital coherent optical receiver using single ended photo-detection

 #192
20100028011
2010-02-04

Digital clock and data recovery scheme

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20100021163
2010-01-28

METHOD AND SYSTEM FOR POLARIZATION SUPPORTED OPTICAL TRANSMISSION

 #194
20090324224
2009-12-31

System, method and apparatus to suppress inter-channel nonlinearities in WDM systems with coherent detection

 #195
20090252497
2009-10-08

Method and apparatus for compensating for polarization mode dispersion (PMD)

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20090201796
2009-08-13

Low conversion rate digital dispersion compensation

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20090142077
2009-06-04

Coherent optical detection and signal processing method and system

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20090142064
2009-06-04

Coherent optical detection and signal processing method and system

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20090142051
2009-06-04

Coherent optical detector and coherent communication system and method

 #200
20090129787
2009-05-21

Optical coherent receiver, frequency offset estimating apparatus and method for optical coherent receiver

 #201
20090103931
2009-04-23

Systems and methods for the coherent non-differential detection of optical communication signals

 #202
20080152362
2008-06-26

Adaptive polarization tracking and equalization in coherent optical receivers

 #203
20070274733
2007-11-29

Coherent optical detector and coherent communication system and method

 #204
20070147850
2007-06-28

Digital Compensation for Optical Transmission System

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20070110362
2007-05-17

Coherent optical detector and coherent communication system and method

 #206
20070092259
2007-04-26

Polarization compensation in a coherent optical receiver

 #207
20060013590
2006-01-19

Adaptive equalization in coherent fiber optic communication

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20050196176
2005-09-08

Equalization strategy for dual-polarization optical transport system

 #209
18211094
2024-09-03

Probabilistic shaping techniques for high performance coherent optical transceivers

 #210
18198315
2023-09-12

Self-coherent receiver based on single delay interferometer

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17861613
2024-01-02

Systems and methods for carrier phase recovery

 #212
17534766
2023-06-20

Probabilistic shaping techniques for high performance coherent optical transceivers

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17409878
2023-05-09

Systems and methods for carrier phase recovery

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17077906
2022-07-12

Systems and methods for carrier phase recovery

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16929436
2021-11-30

Polarization multiplexed free space optical communication system

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16553142
2020-08-25

Digital fiber nonlinearity compensation

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16290854
2020-07-14

Recovery of phase-modulated data from an optical signal via intensity measurements

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16256637
2020-07-14

Impairment compensation techniques for high performance coherent optical transceivers

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16100409
2019-12-17

Reducing variance in reach of WDM channels in an optical network

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15792582
2018-11-13

Tap centerer method and structure for coherent optical receiver

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15792416
2019-06-18

Reduced complexity constrained frequency-domain block LMS adaptive equalization for coherent optical receivers

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15597120
2017-12-05

Single-chip transceiver with electronic dispersion compensation for coherent optical channels

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14869676
2017-07-18

Timing recovery for optical coherent receivers in the presence of polarization mode dispersion

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14642187
2016-06-14

Demultiplexing processing for a receiver

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14629243
2017-06-06

Single-chip transceiver with electronic dispersion compensation for coherent optical channels

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14447156
2016-04-26

Systems and methods for complementary signal transmission

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14095789
2015-11-03

Timing recovery for optical coherent receivers in the presence of polarization mode dispersion

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13835027
2015-08-18

Low power low complexity chromatic dispersion compensation

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13594644
2015-12-29

Timing recovery for optical coherent receivers in the presence of polarization mode dispersion