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Transmission systems employing electromagnetic waves other than radio-waves
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H04B10/00
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Parent Industries
H
ELECTRICITY
H04
Electric communication
H04B
TRANSMISSION
Current Industry
H04B10/00
Transmission systems employing electromagnetic waves other than radio-waves
Sub Industries
H04B10/03
Arrangements for fault recovery
H04B10/032
using working and protection systems
H04B10/035
using loopbacks
H04B10/038
using bypasses
H04B10/07
Arrangements for monitoring or testing transmission systems Arrangements for fault measurement of transmission systems
H04B10/0705
Prevention or detection of unauthorized access
H04B10/071
using a reflected signal
H04B10/073
using an out-of-service signal
H04B10/0731
Testing or characterisation of optical devices
H04B10/075
using an in-service signal
H04B10/077
using a supervisory or additional signal
H04B10/0771
Fault location on the transmission path
H04B10/0773
Network aspects
H04B10/0775
Performance monitoring and measurement of transmission parameters
H04B10/0777
Monitoring line amplifier or line repeater equipment
H04B10/0779
Monitoring line transmitter or line receiver equipment
H04B10/079
using measurements of the data signal
H04B10/0791
Fault location on the transmission path
H04B10/0793
Network aspects
H04B10/0795
Performance monitoring; Measurement of transmission parameters
H04B10/07951
Monitoring or measuring chromatic dispersion or PMD
H04B10/07953
Monitoring or measuring OSNR, BER or Q
H04B10/07955
Monitoring or measuring power
H04B10/07957
Monitoring or measuring wavelength
H04B10/0797
Monitoring line amplifier or line repeater equipment
H04B10/0799
Monitoring line transmitter or line receiver equipment
H04B10/11
Arrangements specific to free-space transmission
H04B10/112
Line-of-sight transmission over an extended range
H04B10/1121
One-way transmission
H04B10/1123
Bidirectional transmission
H04B10/1125
using a single common optical path
H04B10/1127
using two distinct parallel optical paths
H04B10/1129
Arrangements for outdoor wireless networking of information
H04B10/114
Indoor or close-range type systems
H04B10/1141
One-way transmission
H04B10/1143
Bidirectional transmission
H04B10/1149
Arrangements for indoor wireless networking of information
H04B10/116
Visible light communication
H04B10/118
specially adapted for satellite communication
H04B10/12
Transmission through light guides
H04B10/14
Terminal stations
H04B10/142
Coherent homodyne or heterodyne systems
H04B10/152
Non-coherent direct-detection systems
H04B10/22
Transmission between two stations which are mobile relative to each other
H04B10/225
using optical fibre links
H04B10/25
Arrangements specific to fibre transmission
H04B10/2503
Bidirectional transmission
H04B10/2504
Transmission components
H04B10/2507
for the reduction or elimination of distortion or dispersion
H04B10/25073
using spectral equalisation
H04B10/25077
using soliton propagation
H04B10/2513
due to chromatic dispersion
H04B10/25133
including a lumped electrical or optical dispersion compensator ; optical dispersion compensators involving optical fibres per se G02B6/293
H04B10/25137
using pulse shaping at the transmitter
H04B10/2519
using Bragg gratings
H04B10/2525
using dispersion-compensating fibres
H04B10/25253
with dispersion management
H04B10/2531
using spectral inversion
H04B10/2537
due to scattering processes
H04B10/2543
due to fibre non-linearities
H04B10/255
Self-phase modulation [SPM]
H04B10/2557
Cross-phase modulation [XPM]
H04B10/2563
Four-wave mixing [FWM]
H04B10/2569
due to polarisation mode dispersion [PMD]
H04B10/2572
due to forms of polarisation-dependent distortion other than PMD
H04B10/2575
Radio-over-fibre
H04B10/25751
Optical arrangements for CATV or video distribution
H04B10/25752
Optical arrangements for wireless networks
H04B10/25753
Distribution optical network
H04B10/25754
Star network topology
H04B10/25755
Ring network topology
H04B10/25756
Bus network topology
H04B10/25758
between a central unit and a single remote unit by means of an optical fibre
H04B10/25759
Details of the reception of RF signal or the optical conversion before the optical fibre
H04B10/2581
Multimode transmission
H04B10/2587
using a single light source for multiple stations
H04B10/27
Arrangements for networking
H04B10/271
Combination of different networks
H04B10/272
Star-type networks or tree-type networks
H04B10/2725
Star-type networks without a headend
H04B10/275
Ring-type networks
H04B10/2755
Ring-type networks with a headend
H04B10/278
Bus-type networks
H04B10/29
Repeaters
H04B10/291
in which processing or amplification is carried out without conversion of the main signal from optical form
H04B10/2912
characterised by the medium used for amplification or processing
H04B10/2914
using lumped semiconductor optical amplifiers [SOA]
H04B10/2916
using Raman or Brillouin amplifiers
H04B10/2918
Two-way repeaters
H04B10/293
Signal power control
H04B10/2931
using AGC
H04B10/2933
considering the whole optical path
H04B10/2935
with a cascade of amplifiers
H04B10/2937
Systems with a repeater placed only at the beginning or the end of the system, i.e. repeaterless systems
H04B10/2939
Network aspects
H04B10/294
in a multiwavelength system
H04B10/2941
using an equalising unit
H04B10/2942
using automatic gain control [AGC]
H04B10/296
Transient power control
H04B10/297
Bidirectional amplification
H04B10/2971
A single amplifier for both directions
H04B10/2972
Each direction being amplified separately
H04B10/299
Signal waveform processing
H04B10/30
Transmission systems employing beams of corpuscular radiation
H04B10/40
Transceivers
H04B10/43
using a single component as both light source and receiver
H04B10/50
Transmitters
H04B10/501
Structural aspects
H04B10/502
LED transmitters
H04B10/503
Laser transmitters
H04B10/504
using direct modulation
H04B10/505
using external modulation
H04B10/5051
using a series
H04B10/5053
using a parallel
H04B10/5055
using a pre-coder
H04B10/5057
using a feedback signal generated by analysing the optical output
H04B10/50572
to control the modulating signal amplitude including amplitude distortion
H04B10/50575
to control the modulator DC bias
H04B10/50577
to control the phase of the modulating signal
H04B10/5059
using a feed-forward signal generated by analysing the optical or electrical input
H04B10/50593
to control the modulating signal amplitude including amplitude distortion
H04B10/50595
to control the modulator DC bias
H04B10/50597
to control the phase of the modulating signal
H04B10/506
Multi-wavelength transmitters
H04B10/508
Pulse generation
H04B10/516
Details of coding or modulation
H04B10/5161
Combination of different modulation schemes
H04B10/5162
Return-to-zero modulation schemes
H04B10/5165
Carrier suppressed; Single sideband; Double sideband or vestigial
H04B10/5167
Duo-binary; Alternative mark inversion; Phase shaped binary transmission
H04B10/524
Pulse modulation
H04B10/532
Polarisation modulation
H04B10/54
Intensity modulation
H04B10/541
Digital intensity or amplitude modulation
H04B10/548
Phase or frequency modulation
H04B10/556
Digital modulation
H04B10/5561
Digital phase modulation
H04B10/5563
Digital frequency modulation
H04B10/564
Power control
H04B10/572
Wavelength control
H04B10/58
Compensation for non-linear transmitter output
H04B10/588
in external modulation systems
H04B10/60
Receivers
H04B10/61
Coherent receivers i.e., optical receivers using an optical local oscillator
H04B10/611
Intradyne, i.e., coherent receivers with a free running local oscillator having a frequency close but not phase-locked to the carrier signal
H04B10/612
for optical signals modulated with a format different from binary or higher-order PSK [X-PSK]
H04B10/613
including phase diversity, e.g., having in-phase and quadrature branches, as in QPSK coherent receivers
H04B10/614
comprising one or more polarization beam splitters
H04B10/615
Arrangements affecting the optical part of the receiver
H04B10/6151
comprising a polarization controller at the receiver's input stage
H04B10/616
Details of the electronic signal processing in coherent optical receivers
H04B10/6161
Compensation of chromatic dispersion
H04B10/6162
Compensation of polarization related effects, e.g., PMD, PDL
H04B10/6163
Compensation of non-linear effects in the fiber optic link
H04B10/6164
Estimation or correction of the frequency offset between the received optical signal and the optical local oscillator
H04B10/6165
Estimation of the phase of the received optical signal, phase error estimation or phase error correction
H04B10/6166
Polarization demultiplexing, tracking or alignment of orthogonal polarization components
H04B10/63
Homodyne , i.e., coherent receivers where the local oscillator is locked in frequency and phase to the carrier signal
H04B10/64
Heterodyne , i.e., coherent receivers where, after the opto-electronic conversion, an electrical signal at an intermediate frequency [fIF] is obtained
H04B10/66
Non-coherent receivers
H04B10/67
Optical arrangements in the receiver
H04B10/671
for controlling the input optical signal
H04B10/672
for controlling the power of the input optical signal
H04B10/673
using an optical preamplifier
H04B10/674
using a variable optical attenuator
H04B10/675
for controlling the optical bandwidth of the input signal
H04B10/676
for all-optical demodulation of the input optical signal
H04B10/677
for differentially modulated signal
H04B10/69
Electrical arrangements in the receiver
H04B10/691
Arrangements for optimizing the photodetector in the receiver
H04B10/6911
Photodiode bias control
H04B10/693
Arrangements for optimizing the preamplifier in the receiver
H04B10/6931
Automatic gain control of the preamplifier
H04B10/6932
Bandwidth control of bit rate adaptation
H04B10/6933
Offset control of the differential preamplifier
H04B10/695
Arrangements for optimizing the decision element in the receiver
H04B10/697
Arrangements for reducing noise and distortion
H04B10/6971
using equalisation
H04B10/6972
using passive filtering
H04B10/6973
using noise matching networks
H04B10/70
Photonic quantum communication
H04B10/80
Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70
H04B10/801
using optical interconnects
H04B10/802
for isolation
H04B10/803
Free space interconnects
H04B10/806
Arrangements for feeding power
H04B10/807
Optical power feeding
H04B10/808
Electrical power feeding of an optical transmission system
H04B10/85
Protection from unauthorised access
H04B10/90
Non-optical transmission systems
Industries
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Patents Grants
last 30 patents
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Patent Grant
Magnon excitation and detection systems, apparatus, and methods
Patent number
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Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Co-cable probability detection method and apparatus
Patent number
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Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent number
11,973,537
Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
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Patent number
11,973,531
Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
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Patent number
11,973,534
Issue date
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G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
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Patent number
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Issue date
Apr 30, 2024
Nippon Telegraph and Telephone Corporation
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G01 - MEASURING TESTING
Information
Patent Grant
Free space optical communications using a spectrally-equalizing amp...
Patent number
11,973,536
Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
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Patent number
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Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Reconfigurable FEC
Patent number
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Issue date
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H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
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Patent number
11,973,533
Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
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Patent number
11,973,579
Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Extended link-training time negotiated on link start-up
Patent number
11,973,624
Issue date
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Intel Corporation
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G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Decreased crosstalk atomic object detection
Patent number
11,972,322
Issue date
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G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Single-to-differential converter
Patent number
11,973,478
Issue date
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H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Eye safe diverged beam optical wireless communications system
Patent number
11,973,538
Issue date
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8 Rivers Capital, LLC
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transceivers with multi-laser modules
Patent number
11,973,539
Issue date
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Intel Corporation
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Access node farm for end-to-end beamforming
Patent number
11,973,572
Issue date
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Viasat, Inc.
Kenneth V. Buer
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Interference handling for wireless networks with multiple coordinators
Patent number
11,968,133
Issue date
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SIGNIFY HOLDING B.V.
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission device, optical transmission system, and optic...
Patent number
11,968,033
Issue date
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Fujitsu Limited
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
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Patent number
11,968,034
Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Mutually secure optical data network and method
Patent number
11,968,483
Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength domain multiplexing with polarization multiplexing
Patent number
11,968,035
Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
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Patent number
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Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
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Patent number
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Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
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Patent number
11,967,985
Issue date
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Mitsubishi Electric Corporation
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
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Patent number
11,966,083
Issue date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Fast secure handover
Patent number
11,968,581
Issue date
Apr 23, 2024
SIGNIFY HOLDING B.V.
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Power optimization of point-to-point optical systems without visibi...
Patent number
11,967,986
Issue date
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Ciena Corporation
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Insulation device incorporated in an optical wireless communication...
Patent number
11,967,988
Issue date
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OLEDCOMM
Alejandro Espinoza-Garcia
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Data transmission method and apparatus in optical transport network
Patent number
11,967,992
Issue date
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Huawei Technologies Co., Ltd.
Wei Su
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
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Publication number
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Publication date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Publication number
20240146411
Publication date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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LASER WITH OPTICAL SIGNAL MANAGEMENT CAPABILITY
Publication number
20240146418
Publication date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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OPTICAL SIGNAL CONTROLLER, OPTICAL SIGNAL CONTROL METHOD, AND OPTIC...
Publication number
20240146420
Publication date
May 2, 2024
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MULTIPLEX CONVERSION FOR A PASSIVE OPTICAL NETWORK
Publication number
20240146435
Publication date
May 2, 2024
ARRIS Enterprises LLC
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEMS AND METHODS FOR PROVIDING MODULAR TELEMETRY AND CONTROL FOR...
Publication number
20240146808
Publication date
May 2, 2024
Micatu Inc.
Michael Oshetski
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical Module
Publication number
20240146417
Publication date
May 2, 2024
HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES CO., LTD
Honghao ZHANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
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EQUALIZATION APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND EQUALIZATI...
Publication number
20240146437
Publication date
May 2, 2024
NEC Corporation
Mingqi WU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RECONFIGURABLE PASSIVE TERMINAL THAT MANAGES ACCESS TO AN OPTICAL...
Publication number
20240146438
Publication date
May 2, 2024
AT&T INTELLECTUAL PROPERTY I, L.P.
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PACKET SWITCHED QUANTUM NETWORK
Publication number
20240147101
Publication date
May 2, 2024
Cisco Technology, Inc.
Alireza Shabani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
HIGH SPEED NETWORK SWITCH WITH ORTHOGONAL PLUGGABLE OPTICS MODULES
Publication number
20240142731
Publication date
May 2, 2024
Arista Networks, Inc.
Adam Hemp
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
BRILLOUIN GAIN SPECTRUM DISTRIBUTION MEASUREMENT METHOD AND EQUIPMENT
Publication number
20240146413
Publication date
May 2, 2024
Nippon Telegraph and Telephone Corporation
Tomokazu ODA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL SIGNAL ADJUSTMENT
Publication number
20240146415
Publication date
May 2, 2024
Fujitsu Limited
Olga I VASSILIEVA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR ENHANCEMENT OF COMMON MODE REJECTION ON CO...
Publication number
20240146416
Publication date
May 2, 2024
Conor O'Keeffe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMITTER, OPTICAL RECEIVER, AND OPERATING METHODS THEREOF
Publication number
20240146419
Publication date
May 2, 2024
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Sunghyun BAE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PLUGGABLE OPTICAL MODULE AND OPTICAL COMMUNICATION SYSTEM
Publication number
20240142729
Publication date
May 2, 2024
NEC Corporation
Yuuji MINOTA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PASSIVE OPTICAL NETWORK MONITORING
Publication number
20240146410
Publication date
May 2, 2024
Corning Research & Development Corporation
David Francis Dawson-Elli
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND OPTICAL TRANSMISSION METHOD
Publication number
20240146412
Publication date
May 2, 2024
Nitto Denko Corporation
Yugo KASEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
EFFICIENT REMOTE PHY DATAPLANE MANAGEMENT FOR A CABLE SYSTEM
Publication number
20240146414
Publication date
May 2, 2024
ARRIS Enterprises LLC
Vasudevan JOTHILINGAM
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR RECONFIGURABLE CLOCK DATA RECOVERY IN FADI...
Publication number
20240146500
Publication date
May 2, 2024
Sundar Krishnamurthy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical Link Diagnostic System
Publication number
20240137674
Publication date
Apr 25, 2024
Google LLC
Jill Berger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Electronic Module, Especially Optical Transceiver Module
Publication number
20240137125
Publication date
Apr 25, 2024
Adtran Networks SE
Richard Mainardi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION CONTROL DEVICE
Publication number
20240137126
Publication date
Apr 25, 2024
Global Technology Inc.
Weikang KE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND TRANSMISSION MODE SELECTING METHOD
Publication number
20240137128
Publication date
Apr 25, 2024
Nippon Telegraph and Telephone Corporation
Tetsuro Inui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
HEAT DISSIPATION DESIGN FOR OPTICAL TRANSCEIVER
Publication number
20240138050
Publication date
Apr 25, 2024
Prime World International Holdings Ltd.
Ling-An KUNG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CIRCUIT FOR MULTI-PATH INTERFERENCE MITIGATION IN AN OPTICAL COMMUN...
Publication number
20240137130
Publication date
Apr 25, 2024
Marvell Asia Pte Ltd.
Benjamin P. SMITH
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CLOCK FREQUENCY DETERMINING METHOD AND APPARATUS
Publication number
20240137199
Publication date
Apr 25, 2024
Huawei Technologies Co., Ltd
Ganghua YANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION PATH MONITORING DEVICE AND OPTICAL TRANSMISSIO...
Publication number
20240137117
Publication date
Apr 25, 2024
NEC Corporation
Takehiro NAKANO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RADIATION-FIELD-ASSISTED HYBRID OBJECT-SUPPLY SYSTEM
Publication number
20240137123
Publication date
Apr 25, 2024
Cleanuvator Patentgesellschaft mbH
Lutz ROTHE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ALL-OPTICAL PHASE-PRESERVING SIGNAL AMPLITUDE PROCESSORS
Publication number
20240137124
Publication date
Apr 25, 2024
Board of Regents, The University of Texas System
Michael Vasilyev
H04 - ELECTRIC COMMUNICATION TECHNIQUE