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comprising one or more polarization beam splitters
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H04B10/614
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ELECTRICITY
H04
Electric communication
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TRANSMISSION
H04B10/00
Transmission systems employing electromagnetic waves other than radio-waves
Current Industry
H04B10/614
comprising one or more polarization beam splitters
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Patents Grants
last 30 patents
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Patent Grant
Metastructured photonic devices for binary tree multiplexing or dem...
Patent number
11,968,034
Issue date
Apr 23, 2024
X Development LLC
Sunil Pai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical switch and optical performance monitoring method based on o...
Patent number
11,962,352
Issue date
Apr 16, 2024
Huawei Technologies Co., Ltd.
Liang Wang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system multiplexing and demultiplexing apparatus and...
Patent number
11,956,015
Issue date
Apr 9, 2024
Telefonaktiebolaget LM Ericsson (publ)
Giulio Bottari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Fiber branch structure for spatial optical communication and optica...
Patent number
11,956,012
Issue date
Apr 9, 2024
Shimadzu Corporation
Keiko Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Integrated self-coherent receiving optical chip based on round-trip...
Patent number
11,949,461
Issue date
Apr 2, 2024
BEIJING ZHONGKE GUOGUANG QUANTUM TECHNOLOGY CO., LTD.
Yibo Zhao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatuses and methods for optical code-delay reflectometry (OcoDR)
Patent number
11,949,458
Issue date
Apr 2, 2024
SEQUENT LOGIC, LLC
Ryan Seeley
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system and OLT system
Patent number
11,936,432
Issue date
Mar 19, 2024
Nippon Telegraph and Telephone Corporation
Tomoya Hatano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical modules having an improved optical signal to noise ratio
Patent number
11,929,826
Issue date
Mar 12, 2024
Infinera Corporation
Jeffrey T. Rahn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission apparatus and optical transmission method
Patent number
11,929,787
Issue date
Mar 12, 2024
Nippon Telegraph and Telephone Corporation
Akihiro Tanabe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Port-identified optical signal splitter
Patent number
11,923,893
Issue date
Mar 5, 2024
AT&T Intellectual Property I, L.P.
Ricky Perry
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Self-coherent receiver based on polarization-independent delay inte...
Patent number
11,923,909
Issue date
Mar 5, 2024
BEIJING ZHONGKE GUOGUANG QUANTUM TECHNOLOGY CO., LTD.
Yibo Zhao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Systems and methods for sensing fiber optic cables of access networks
Patent number
11,916,588
Issue date
Feb 27, 2024
Verizon Patent and Licensing Inc.
Tiejun J Xia
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Polarization independent DQPSK demodulation integrated optical chip
Patent number
11,888,531
Issue date
Jan 30, 2024
BEIJING ZHONGKE GUOGUANG QUANTUM TECHNOLOGY CO., LTD.
Yibo Zhao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical tracking module chip for wireless optical communication ter...
Patent number
11,888,530
Issue date
Jan 30, 2024
X Development LLC
Baris Ibrahim Erkmen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system and optical transmission method
Patent number
11,888,522
Issue date
Jan 30, 2024
Nippon Telegraph and Telephone Corporation
Koki Shibahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for coherent optical multiplexing 1+1 protection
Patent number
11,870,552
Issue date
Jan 9, 2024
II-VI DELAWARE, INC.
Peigang Hu
G02 - OPTICS
Information
Patent Grant
Systems and methods for carrier phase recovery
Patent number
11,863,297
Issue date
Jan 2, 2024
Cable Television Laboratories, Inc.
Junwen Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical coherent transceiver and filter adjustment method
Patent number
11,855,703
Issue date
Dec 26, 2023
Fujitsu Limited
Norifumi Shukunami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Media-based reconfigurable intelligent surface-assisted modulation
Patent number
11,848,709
Issue date
Dec 19, 2023
Huawei Technologies Co., Ltd.
Mostafa Medra
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coherent optical receiving apparatus and optical system that uses c...
Patent number
11,817,908
Issue date
Nov 14, 2023
Huawei Technologies Co., Ltd.
Tao Gui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Systems and methods for optical wireless communication
Patent number
11,804,904
Issue date
Oct 31, 2023
Cable Television Laboratories, Inc.
Haipeng Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coherent optical receiving apparatus and optical system that uses c...
Patent number
11,777,611
Issue date
Oct 3, 2023
Huawei Technologies Co., Ltd.
Tao Gui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Generation of entangled qubit states
Patent number
11,742,956
Issue date
Aug 29, 2023
PSIQUANTUM CORP.
Mercedes Gimeno-Segovia
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Individually routable subcarriers
Patent number
11,736,204
Issue date
Aug 22, 2023
Infinera Corporation
Kuang-Tsan Wu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Asymmetric bidirectional optical wireless communication system base...
Patent number
11,736,205
Issue date
Aug 22, 2023
NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLO
Hsi-Hsir Chou
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Individually routable subcarriers
Patent number
11,728,899
Issue date
Aug 15, 2023
Infinera Corporation
Kuang-Tsan Wu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical semiconductor device
Patent number
11,722,224
Issue date
Aug 8, 2023
Mitsubishi Electric Corporation
Ryosuke Nagao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Wavelength demultiplexer, optical transceiver front-end module, pho...
Patent number
11,709,317
Issue date
Jul 25, 2023
Fujitsu Limited
Akio Sugama
G02 - OPTICS
Information
Patent Grant
Signal processing apparatus and signal processing method
Patent number
11,700,064
Issue date
Jul 11, 2023
Huawei Technologies Co., Ltd.
Jing Suo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Polarization-diversity Kramers-Kronig heterodyne receiver and method
Patent number
11,695,482
Issue date
Jul 4, 2023
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
Carsten Schmidt-Langhorst
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
NETWORK PROBING INCLUDING SPLIT LIGHT SIGNAL MONITORING
Publication number
20240129032
Publication date
Apr 18, 2024
DISH Wireless L.L.C.
Sudir ANAND
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEMS AND METHODS FOR DETECTING A LOCATION OF THE OPTICAL ELEMENT...
Publication number
20240120995
Publication date
Apr 11, 2024
Huawei Technologies Co., Ltd
ZHIPING JIANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FREE SPACE OPTICAL COMMUNICATIONS TERMINAL
Publication number
20240113779
Publication date
Apr 4, 2024
AIRBUS (SAS)
Crisanto QUINTANA SANCHEZ
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WAVELENGTH MULTIPLEXING OPTICAL TRANSMISSION SYSTEM AND WAVELENGTH...
Publication number
20240113797
Publication date
Apr 4, 2024
Lumentum Japan, Inc.
Nobuhiko KIKUCHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRACKING MODULE CHIP FOR WIRELESS OPTICAL COMMUNICATION TER...
Publication number
20240106545
Publication date
Mar 28, 2024
Baris Ibrahim Erkmen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, STORAGE MEDIUM, AND...
Publication number
20240097790
Publication date
Mar 21, 2024
FURUKAWA ELECTRIC CO., LTD.
Tomoaki TERASAKI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
INTEGRATED SELF-COHERENT RECEIVING OPTICAL CHIP BASED ON ROUND-TRIP...
Publication number
20240097792
Publication date
Mar 21, 2024
BEIJING ZHONGKE GUOGUANG QUANTUM TECHNOLOGY CO., LTD.
Yibo ZHAO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEM FOR CORRECTING PHASE NOISE AND/OR DRIFT OCCURRING IN OPTICAL...
Publication number
20240080096
Publication date
Mar 7, 2024
ROHDE & SCHWARZ GMBH & CO. KG
Julius Seeger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MULTI-CARRIER TRANSMITTER WITH INTEGRATED MULTIPLEXER AND RECEIVER...
Publication number
20240080106
Publication date
Mar 7, 2024
Lumentum Operations LLC
Joe Qingzhe WEN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METASTRUCTURED PHOTONIC DEVICES FOR BINARY TREE MULTIPLEXING OR DEM...
Publication number
20240063934
Publication date
Feb 22, 2024
X Development LLC
Sunil Pai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LASERLESS OPTICAL TRANSCEIVER
Publication number
20240031033
Publication date
Jan 25, 2024
Cisco Technology, Inc.
Jock T. BOVINGTON
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COHERENT RECEIVING DEVICE AND ANEMOMETRY LIDAR SYSTEM
Publication number
20240007194
Publication date
Jan 4, 2024
ACCELINK TECHNOLOGIES CO., LTD.
Chuan Shi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
INTEGRATED COHERENT RECEIVER FOR DISTRIBUTED FIBER SENSING APPARATUS
Publication number
20230421255
Publication date
Dec 28, 2023
Fiber Sense Limited
Gideon Yoffe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL MULTIPLE-INPUT-MULTIPLE-OUTPUT (MIMO) RECEIVER USING STOKES...
Publication number
20230396340
Publication date
Dec 7, 2023
Aloe Semiconductor Inc.
Christopher R. Doerr
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
APPARATUSES AND METHODS FOR OPTICAL CODE-DELAY REFLECTOMETRY (OCoDR)
Publication number
20230361880
Publication date
Nov 9, 2023
SEQUENT LOGIC, LLC
Ryan Seeley
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM AND OPTICAL COMMUNICATION METHOD
Publication number
20230308185
Publication date
Sep 28, 2023
Mitsubishi Electric Corporation
Satoshi Yoshima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
BRANCH RATIO SETTING SYSTEM, METHOD FOR PRODUCING OPTICAL COMMUNICA...
Publication number
20230291484
Publication date
Sep 14, 2023
Nippon Telegraph and Telephone Corporation
Ryo IGARASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND TRANSMISSION QUALITY MONITORING METHOD
Publication number
20230275658
Publication date
Aug 31, 2023
Nippon Telegraph and Telephone Corporation
Toshiaki SHITABA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM, COMMUNICATION METHOD, ACCOMMODATION STATION D...
Publication number
20230261746
Publication date
Aug 17, 2023
Nippon Telegraph and Telephone Corporation
Kota ITO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL WAVEMETER
Publication number
20230239046
Publication date
Jul 27, 2023
KEYSIGHT TECHNOLOGIES, INC.
Marcel Zeiler
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Apparatus and Method for Coherent Optical Multiplexing 1+1 Protection
Publication number
20230224060
Publication date
Jul 13, 2023
II-VI Delaware, Inc.
Peigang HU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COHERENT OPTICAL RECEIVER DEVICE AND COHERENT OPTICAL RECEIVING METHOD
Publication number
20230216594
Publication date
Jul 6, 2023
NEC Corporation
Kouichi Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL RECEPTION DEVICE AND OPTICAL TRANSMISSION AND RECEPTION DEVICE
Publication number
20230208525
Publication date
Jun 29, 2023
Fujitsu Limited
Tomoyuki Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND DATA COMMUNICATION SYSTEM
Publication number
20230194779
Publication date
Jun 22, 2023
Alibaba (China) Co., Ltd.
Sai CHEN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SCALABLE RECEIVER ARCHITECTURE FOR SILICON PHOTONIC LINKS
Publication number
20230198631
Publication date
Jun 22, 2023
Intel Corporation
Itamar Levin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
GENERATION OF ENTANGLED QUBIT STATES
Publication number
20230188221
Publication date
Jun 15, 2023
PsiQuantum Corp.
Mercedes GIMENO-SEGOVIA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Dual-Output Coherent Optical Technology
Publication number
20230163854
Publication date
May 25, 2023
Google LLC
Xiang Zhou
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Self-Coherent Optical Transmission System and Receiver
Publication number
20230155688
Publication date
May 18, 2023
Telefonaktiebolaget LM Ericsson (publ)
Fabio Cavaliere
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL EMISSION APPARATUS, OPTICAL COMMUNICATION SYSTEM, AND OPTIC...
Publication number
20230155687
Publication date
May 18, 2023
Huawei Technologies Co., Ltd
Chunhui ZHANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM AND OLT SYSTEM
Publication number
20230146851
Publication date
May 11, 2023
Nippon Telegraph and Telephone Corporation
Tomoya HATANO
H04 - ELECTRIC COMMUNICATION TECHNIQUE