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including phase diversity, e.g., having in-phase and quadrature branches, as in QPSK coherent receivers
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H04B10/613
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ELECTRICITY
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Electric communication
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TRANSMISSION
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Transmission systems employing electromagnetic waves other than radio-waves
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H04B10/613
including phase diversity, e.g., having in-phase and quadrature branches, as in QPSK coherent receivers
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last 30 patents
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High power handling digitizer using photonics
Patent number
11,923,907
Issue date
Mar 5, 2024
Lawrence Livermore National Security, LLC
Peter Thomas Setsuda DeVore
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Systems and methods for carrier phase recovery
Patent number
11,881,899
Issue date
Jan 23, 2024
Cable Television Laboratories, Inc.
Haipeng Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frequency division multiple access optical subcarriers
Patent number
11,824,628
Issue date
Nov 21, 2023
Infinera Corporation
Jeffrey T. Rahn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frequency division multiple access optical subcarriers
Patent number
11,791,893
Issue date
Oct 17, 2023
Infinera Corporation
Jeffrey T. Rahn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Technology for optical modulator evaluation on basis of phase recovery
Patent number
11,791,905
Issue date
Oct 17, 2023
National Institute of Information and Communications Technology
Yuki Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio frequency (RF) signal processor with photonic local oscillato...
Patent number
11,736,203
Issue date
Aug 22, 2023
Rockwell Collins, Inc.
Ronald D. Esman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and methods for coherent optics based daisy-chaining
Patent number
11,722,219
Issue date
Aug 8, 2023
Cable Television Laboratories, Inc.
Luis Alberto Campos
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication system and optical communication method
Patent number
11,722,223
Issue date
Aug 8, 2023
Nippon Telegraph and Telephone Corporation
Yuto Sagae
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Systems, devices, and methods for tuning transceivers
Patent number
11,711,147
Issue date
Jul 25, 2023
Mellanox Technologies, Ltd.
Nikolaos (Nikos) Argyris
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frequency division multiple access optical subcarriers
Patent number
11,637,630
Issue date
Apr 25, 2023
Infinera Corporation
Jeffrey T. Rahn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coherent optical receiver device and coherent optical receiving method
Patent number
11,632,180
Issue date
Apr 18, 2023
NEC Corporation
Kouichi Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission/reception device and transmission/reception method
Patent number
11,606,161
Issue date
Mar 14, 2023
Mitsubishi Electric Corporation
Kiyoshi Onohara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Leveraging coherent detection to measure performance of optical tra...
Patent number
11,601,204
Issue date
Mar 7, 2023
Cisco Technology, Inc.
Fabio Bottoni
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Adaptive constellation diagram reducing the impact of phase distort...
Patent number
11,581,948
Issue date
Feb 14, 2023
Xieon Networks S.a.r.l.
Lutz Rapp
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Code division multiple access optical subcarriers
Patent number
11,539,430
Issue date
Dec 27, 2022
Infinera Corporation
Amir Jafari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Systems and methods for skew detection and pre-compensation in a co...
Patent number
11,539,432
Issue date
Dec 27, 2022
Cable Television Laboratories, Inc.
Mu Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frequency division multiple access optical subcarriers
Patent number
11,483,066
Issue date
Oct 25, 2022
Infinera Corporation
Jeffrey T. Rahn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and methods for digital signal constellation transformation
Patent number
11,469,824
Issue date
Oct 11, 2022
MARVELL ASIA PTE. LTD.
Shu Hao Fan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time division multiple access optical subcarriers
Patent number
11,451,292
Issue date
Sep 20, 2022
Infinera Corporation
Amir Jafari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and methods for coherent optics based daisy-chaining
Patent number
11,411,649
Issue date
Aug 9, 2022
Cable Television Laboratories, Inc.
Luis Alberto Campos
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wide-area sensing of amplitude modulated signals
Patent number
11,375,146
Issue date
Jun 28, 2022
Massachusetts Institute of Technology
Kenneth Schultz
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and system for secure phase-encoded digital communication ov...
Patent number
11,329,797
Issue date
May 10, 2022
Quantropi Inc.
Randy Kuang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frame synchronization apparatus, optical communication apparatus, a...
Patent number
11,323,238
Issue date
May 3, 2022
NTT Electronics Corporation
Mitsuteru Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication system employing a multidimensional constella...
Patent number
11,309,972
Issue date
Apr 19, 2022
Nokia Solutions and Networks Oy
Juan Ignacio Bonetti
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical receiver and optical space communication system
Patent number
11,296,789
Issue date
Apr 5, 2022
NEC Corporation
Hideaki Kotake
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for in-phase and quadrature skew calibration i...
Patent number
11,277,207
Issue date
Mar 15, 2022
Huawei Technologies Co., Ltd.
Wing Chau Ng
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for updating a list of stations that can be received by a ra...
Patent number
11,272,435
Issue date
Mar 8, 2022
Continental Automotive France
Emmanuel Kopp
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time division multiple access optical subcarriers
Patent number
11,258,508
Issue date
Feb 22, 2022
Infinera Corporation
Amir Jafari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Code division multiple access optical subcarriers
Patent number
11,218,217
Issue date
Jan 4, 2022
Infinera Corporation
Amir Jafari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frame synchronization apparatus, optical communication apparatus, a...
Patent number
11,201,721
Issue date
Dec 14, 2021
NTT Electronics Corporation
Mitsuteru Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL TRANSMITTER THAT TRANSMITS MULTI-LEVEL SIGNAL
Publication number
20240137127
Publication date
Apr 25, 2024
Fujitsu Limited
GUOXIU HUANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COHERENT DETECTION METHOD AND APPARATUS, AND OPTICAL TRANSMISSION S...
Publication number
20240121006
Publication date
Apr 11, 2024
ZTE Corporation
Jingsong BEI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND SYSTEM FOR GENERATING THE SPECTROGRAM OF A SIGNAL
Publication number
20240097782
Publication date
Mar 21, 2024
Institut National de la Recherche Scientifique
Jose AZANA
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
TECHNOLOGY FOR OPTICAL MODULATOR EVALUATION ON BASIS OF PHASE RECOVERY
Publication number
20230120581
Publication date
Apr 20, 2023
National Institute of Information and Communications Technology
Yuki YOSHIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
Publication number
20230092560
Publication date
Mar 23, 2023
Infinera Corporation
Jeffrey T. Rahn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
Publication number
20230061657
Publication date
Mar 2, 2023
Infinera Corporation
Jeffrey T. Rahn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LEVERAGING COHERENT DETECTION TO MEASURE PERFORMANCE OF OPTICAL TRA...
Publication number
20230013373
Publication date
Jan 19, 2023
Cisco Technology, Inc.
Fabio Bottoni
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TIME DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
Publication number
20230006737
Publication date
Jan 5, 2023
Infinera Corporation
Amir Jafari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
Publication number
20220376781
Publication date
Nov 24, 2022
Infinera Corporation
Jeffrey T. Rahn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
Publication number
20220376780
Publication date
Nov 24, 2022
Infinera Corporation
Jeffrey T. Rahn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEMS, DEVICES, AND METHODS FOR TUNING TRANSCEIVERS
Publication number
20220329322
Publication date
Oct 13, 2022
MELLANOX TECHNOLOGIES LTD.
Nikolaos (Nikos) Argyris
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM AND OPTICAL COMMUNICATION METHOD
Publication number
20220294536
Publication date
Sep 15, 2022
Nippon Telegraph and Telephone Corporation
Yuto SAGAE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL MODULATOR, OPTICAL RECEIVER, CONVERSION DEVICE, SPIN ORBITA...
Publication number
20220171251
Publication date
Jun 2, 2022
Hitachi, Ltd
Shinichi SAITO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
TRANSMISSION/RECEPTION DEVICE AND TRANSMISSION/RECEPTION METHOD
Publication number
20220158748
Publication date
May 19, 2022
Mitsubishi Electric Corporation
Kiyoshi ONOHARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
REDUCED COMPLEXITY POLARIZATION COMBINING METHOD FOR COHERENT DAS
Publication number
20220146304
Publication date
May 12, 2022
NEC Laboratories America, Inc.
Junqiang HU
G01 - MEASURING TESTING
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Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
Publication number
20220123831
Publication date
Apr 21, 2022
Infinera Corporation
Jeffrey T. Rahn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL RECEIVER AND OPTICAL SPACE COMMUNICATION SYSTEM
Publication number
20220021451
Publication date
Jan 20, 2022
NEC Corporation
Hideaki KOTAKE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMITTER AND OPTICAL RECEIVER
Publication number
20210359764
Publication date
Nov 18, 2021
NEC Corporation
Yasushi HARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND SYSTEM FOR SECURE PHASE-ENCODED DIGITAL COMMUNICATION OV...
Publication number
20210266142
Publication date
Aug 26, 2021
Quantropi Inc.
Randy Kuang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COHERENT OPTICAL RECEIVER DEVICE AND COHERENT OPTICAL RECEIVING METHOD
Publication number
20210218475
Publication date
Jul 15, 2021
NEC Corporation
Kouichi Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ADAPTIVE CONSTELLATION DIAGRAM REDUCING THE IMPACT OF PHASE DISTORT...
Publication number
20210194593
Publication date
Jun 24, 2021
Xieon Networks S.a.r.l.
Lutz RAPP
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
APPARATUS AND METHODS FOR DIGITAL SIGNAL CONSTELLATION TRANSFORMATION
Publication number
20210119705
Publication date
Apr 22, 2021
INPHI CORPORATION
Shu Hao FAN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM EMPLOYING A MULTIDIMENSIONAL CONSTELLA...
Publication number
20210091858
Publication date
Mar 25, 2021
Nokia Solutions and Networks Oy
Juan Ignacio Bonetti
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD
Publication number
20210083779
Publication date
Mar 18, 2021
NEC Corporation
Manabu ARIKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
HIGH POWER HANDLING DIGITIZER USING PHOTONICS
Publication number
20210021349
Publication date
Jan 21, 2021
LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
Peter Thomas Setsuda DeVore
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
Publication number
20200382216
Publication date
Dec 3, 2020
Infinera Corporation
Jeffrey T. Rahn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COHERENT OPTICAL RECEIVER DEVICE AND COHERENT OPTICAL RECEIVING METHOD
Publication number
20200313776
Publication date
Oct 1, 2020
NEC Corporation
Kouichi Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEM AND METHODS FOR COHERENT OPTICS BASED DAISY-CHAINING
Publication number
20200295834
Publication date
Sep 17, 2020
Cable Television Laboratories, Inc.
Luis Alberto Campos
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
APPARATUS AND METHOD FOR ESTIMATING POLARIZATION SKEW
Publication number
20200266901
Publication date
Aug 20, 2020
Fujitsu Limited
Yangyang FAN
H04 - ELECTRIC COMMUNICATION TECHNIQUE