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Manabu Arikawa
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last 30 patents
Information
Patent Grant
Coefficient update amount output device, coefficient update device,...
Patent number
12,009,868
Issue date
Jun 11, 2024
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system, receiver, equalization signal processing circ...
Patent number
11,728,900
Issue date
Aug 15, 2023
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Reception device for optical space communication, optical space com...
Patent number
11,728,888
Issue date
Aug 15, 2023
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Receiving optical system control device and receiving optical syste...
Patent number
11,637,636
Issue date
Apr 25, 2023
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for removing inter-radar interference using deconvolution of...
Patent number
11,300,671
Issue date
Apr 12, 2022
NEC Corporation
Osamu Hoshuyama
G01 - MEASURING TESTING
Information
Patent Grant
Communication apparatus and communication method
Patent number
11,277,758
Issue date
Mar 15, 2022
NEC Corporation
Yasunori Futatsugi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical space communication system, optical reception device, optic...
Patent number
11,206,081
Issue date
Dec 21, 2021
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal processing device and signal processing method
Patent number
11,139,896
Issue date
Oct 5, 2021
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal combining device and signal combining method
Patent number
10,998,973
Issue date
May 4, 2021
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Free-space optical communication receiving device and method of con...
Patent number
10,862,593
Issue date
Dec 8, 2020
NEC Corporation
Kohei Hosokawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Received signal processor and method for processing received signal
Patent number
10,511,409
Issue date
Dec 17, 2019
NEC Corporation
Kohei Hosokawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Free space optical transmitter and free space optical communication...
Patent number
10,454,577
Issue date
Oct 22, 2019
NEC Corporation
Seigo Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital signal processing circuit and optical space communication s...
Patent number
10,432,318
Issue date
Oct 1, 2019
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication device, optical communication system, and opt...
Patent number
10,411,802
Issue date
Sep 10, 2019
NEC Corporation
Akihiro Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system, optical receiver, and method for detec...
Patent number
10,361,779
Issue date
Jul 23, 2019
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Free space optical receiver and free space optical receiving method
Patent number
10,313,011
Issue date
Jun 4, 2019
NEC Corporation
Seigo Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical spatial-division multiplexed transmission system and transm...
Patent number
9,729,229
Issue date
Aug 8, 2017
NEC Corporation
Emmanuel Le Taillandier De Gabory
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for transmitting optical signal over multiple cha...
Patent number
9,660,762
Issue date
May 23, 2017
NEC Corporation
Emmanuel Le Taillandier De Gabory
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmitting/receiving system and timing extracting method...
Patent number
9,319,141
Issue date
Apr 19, 2016
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Equalization signal processor, optical receiver including the same,...
Patent number
9,160,459
Issue date
Oct 13, 2015
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical receiver, polarization demultiplexer, and optical receiving...
Patent number
9,014,574
Issue date
Apr 21, 2015
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication system with monitor functions and monitoring...
Patent number
8,989,599
Issue date
Mar 24, 2015
NEC Corporation
Emmanuel Le Taillandier De Gabory
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for detecting chromatic dispersion, and method...
Patent number
8,971,702
Issue date
Mar 3, 2015
NEC Corporation
Emmanuel Le Taillandier De Gabory
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
DIGITAL SIGNAL PROCESSING CIRCUIT, METHOD, RECEIVER, AND COMMUNICAT...
Publication number
20250038858
Publication date
Jan 30, 2025
NEC Corporation
Masaki Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DIGITAL SIGNAL PROCESSING CIRCUIT, METHOD, RECEIVER, AND COMMUNICAT...
Publication number
20240405874
Publication date
Dec 5, 2024
NEC Corporation
Masaki Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM, RECEIVER, EQUALIZATION SIGNAL PROCESSING CIRC...
Publication number
20240283546
Publication date
Aug 22, 2024
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM, RECEIVER, EQUALIZATION SIGNAL PROCESSING CIRC...
Publication number
20240214247
Publication date
Jun 27, 2024
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM, OPTICAL COMMUNICATION METHOD AND NON-...
Publication number
20240195498
Publication date
Jun 13, 2024
NEC Corporation
Ankith VINAYACHANDRAN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COEFFICIENT UPDATE AMOUNT OUTPUT DEVICE, COEFFICIENT UPDATE DEVICE,...
Publication number
20240056195
Publication date
Feb 15, 2024
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM, RECEIVER, DISTORTION DETECTION DEVICE, AND ME...
Publication number
20240007193
Publication date
Jan 4, 2024
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FILTER COEFFICIENT UPDATING DEVICE, FILTER DEVICE, DEMODULATING DEV...
Publication number
20230130197
Publication date
Apr 27, 2023
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM, RECEIVER, EQUALIZATION SIGNAL PROCESSING CIRC...
Publication number
20220385374
Publication date
Dec 1, 2022
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RECEIVING OPTICAL SYSTEM CONTROL DEVICE AND RECEIVING OPTICAL SYSTE...
Publication number
20220224418
Publication date
Jul 14, 2022
NEC Corporation
Manabu ARIKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RECEPTION DEVICE FOR OPTICAL SPACE COMMUNICATION, OPTICAL SPACE COM...
Publication number
20220149940
Publication date
May 12, 2022
NEC Corporation
Manabu ARIKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL SPACE COMMUNICATION SYSTEM, OPTICAL RECEPTION DEVICE, OPTIC...
Publication number
20210159976
Publication date
May 27, 2021
NEC Corporation
Manabu ARIKAWA
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
FREE-SPACE OPTICAL COMMUNICATION RECEIVING DEVICE AND METHOD OF CON...
Publication number
20200304213
Publication date
Sep 24, 2020
NEC Corporation
Kohei HOSOKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIGNAL COMBINING DEVICE AND SIGNAL COMBINING METHOD
Publication number
20200044737
Publication date
Feb 6, 2020
NEC Corporation
Manabu ARIKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION APPARATUS AND COMMUNICATION METHOD
Publication number
20200015099
Publication date
Jan 9, 2020
NEC Corporation
Yasunori FUTATSUGI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD FOR REMOVING INTER-RADAR INTERFERENCE, SIGNAL PROCESSING DEV...
Publication number
20190353768
Publication date
Nov 21, 2019
NEC Corporation
Osamu HOSHUYAMA
G01 - MEASURING TESTING
Information
Patent Application
DIGITAL SIGNAL PROCESSING CIRCUIT AND OPTICAL SPACE COMMUNICATION S...
Publication number
20190013875
Publication date
Jan 10, 2019
NEC Corporation
Manabu ARIKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RECEIVED SIGNAL PROCESSOR AND METHOD FOR PROCESSING RECEIVED SIGNAL
Publication number
20180323904
Publication date
Nov 8, 2018
NEC Corporation
Kohei HOSOKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FREE SPACE OPTICAL TRANSMITTER AND FREE SPACE OPTICAL COMMUNICATION...
Publication number
20180234180
Publication date
Aug 16, 2018
NEC Corporation
Seigo TAKAHASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION DEVICE, OPTICAL COMMUNICATION SYSTEM, AND OPT...
Publication number
20180212681
Publication date
Jul 26, 2018
NEC Corporation
Akihiro TANAKA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM, OPTICAL RECEIVER, AND METHOD FOR DETEC...
Publication number
20180069625
Publication date
Mar 8, 2018
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FREE SPACE OPTICAL RECEIVER AND FREE SPACE OPTICAL RECEIVING METHOD
Publication number
20170264365
Publication date
Sep 14, 2017
NEC Corporation
Seigo TAKAHASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL SPATIAL-DIVISION MULTIPLEXED TRANSMISSION SYSTEM AND TRANSM...
Publication number
20160056889
Publication date
Feb 25, 2016
Emmanuel LE TAILLANDIER DE GABORY
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEM AND METHOD FOR TRANSMITTING OPTICAL SIGNAL OVER MULTIPLE CHA...
Publication number
20150229438
Publication date
Aug 13, 2015
Emmanuel Le Taillandier De Gabory
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MULTIPLEXED OPTICAL TRANSMISSION LINE, OPTICAL TRANSMISSION SYSTEM,...
Publication number
20150078744
Publication date
Mar 19, 2015
NEC Corporation
Toshiharu Ito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
EQUALIZATION SIGNAL PROCESSOR, OPTICAL RECEIVER INCLUDING THE SAME,...
Publication number
20140328585
Publication date
Nov 6, 2014
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL RECEIVER, POLARIZATION DEMULTIPLEXER, AND OPTICAL RECEIVING...
Publication number
20130336654
Publication date
Dec 19, 2013
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION SYSTEM WITH MONITOR FUNCTIONS AND MONITORING...
Publication number
20130336647
Publication date
Dec 19, 2013
NEC CORPORATION
Emmanuel Le Taillandier De Gabory
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMITTING/RECEIVING SYSTEM AND TIMING EXTRACTING METHOD...
Publication number
20130022351
Publication date
Jan 24, 2013
NEC Corporation
Manabu Arikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE