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Yasuo OHTOMO
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Kawasaki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Adaptive equalization circuit and optical receiver
Patent number
10,931,485
Issue date
Feb 23, 2021
Fujitsu Limited
Yuya Imoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal processing circuit and optical receiving device
Patent number
10,560,199
Issue date
Feb 11, 2020
Fujitsu Limited
Yuya Imoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Amplitude adjustment circuit, digital coherent receiver, and amplit...
Patent number
10,177,855
Issue date
Jan 8, 2019
Fujitsu Limited
Masashi Sato
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Adaptive equalization circuit, digital coherent receiver, and adapt...
Patent number
9,680,667
Issue date
Jun 13, 2017
Fujitsu Limited
Daisuke Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal processing apparatus, signal processing method, and signal p...
Patent number
9,660,733
Issue date
May 23, 2017
Fujitsu Limited
Masashi Sato
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Loop filter
Patent number
8,861,980
Issue date
Oct 14, 2014
Fujitsu Limited
Yasuo Ohtomo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal modulation method, signal modulation apparatus, electronic d...
Patent number
7,649,482
Issue date
Jan 19, 2010
Fujitsu Limited
Kazuhiko Hatae
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Data receiving device for reproducing a received symbol from a rece...
Patent number
5,638,409
Issue date
Jun 10, 1997
Fujitsu Limited
Yutaka Awata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital PLL circuit
Patent number
5,399,985
Issue date
Mar 21, 1995
Fujitsu Limited
Yutaka Awata
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
ADAPTIVE EQUALIZATION CIRCUIT AND OPTICAL RECEIVER
Publication number
20200267030
Publication date
Aug 20, 2020
Fujitsu Limited
Yuya IMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIGNAL PROCESSING CIRCUIT AND OPTICAL RECEIVING DEVICE
Publication number
20190280779
Publication date
Sep 12, 2019
Fujitsu Limited
Yuya IMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AMPLITUDE ADJUSTMENT CIRCUIT, DIGITAL COHERENT RECEIVER, AND AMPLIT...
Publication number
20180123701
Publication date
May 3, 2018
Fujitsu Limited
Masashi Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ADAPTIVE EQUALIZATION CIRCUIT, DIGITAL COHERENT RECEIVER, AND ADAPT...
Publication number
20170012803
Publication date
Jan 12, 2017
Fujitsu Limited
Daisuke SASAKI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND SIGNAL P...
Publication number
20160134261
Publication date
May 12, 2016
Fujitsu Limited
Masashi Sato
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
METHOD FOR SIMULATING DATA TRANSMISSION AMONG A PLURALITY OF HARDWA...
Publication number
20130317802
Publication date
Nov 28, 2013
Fujitsu Limited
Manabu YAMAZAKI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LOOP FILTER
Publication number
20120134685
Publication date
May 31, 2012
Fujitsu Limited
Yasuo OHTOMO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIGNAL MODULATION METHOD, SIGNAL MODULATION APPARATUS, ELECTRONIC D...
Publication number
20090085786
Publication date
Apr 2, 2009
Fujitsu Limited
Kazuhiko HATAE
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Circuit evaluation method and circuit evaluation apparatus
Publication number
20070124129
Publication date
May 31, 2007
FUJITSU LIMITED
Yasuo Ohtomo
G06 - COMPUTING CALCULATING COUNTING