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Patents Grants
last 30 patents
Information
Patent Grant
Signal processing apparatus, method, program, and recording medium
Patent number
11,604,852
Issue date
Mar 14, 2023
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Processing apparatus, fingerprint image extraction processing appar...
Patent number
11,417,144
Issue date
Aug 16, 2022
NEC Corporation
Yoshimasa Ono
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Digital filter device, digital filtering method, and program record...
Patent number
10,853,445
Issue date
Dec 1, 2020
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Digital filter, filter processing method, and recording medium
Patent number
10,855,255
Issue date
Dec 1, 2020
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Digital filter circuit, signal processing device, and digital filte...
Patent number
10,374,581
Issue date
Aug 6, 2019
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Digital filtering device, digital filtering method, and storage med...
Patent number
9,952,648
Issue date
Apr 24, 2018
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Digital filter device, digital filtering method, and storage medium...
Patent number
9,934,199
Issue date
Apr 3, 2018
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Digital filter device, digital filter processing method, and storag...
Patent number
9,880,975
Issue date
Jan 30, 2018
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Fast Fourier transform device, fast Fourier transform method, and r...
Patent number
9,785,614
Issue date
Oct 10, 2017
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Digital filter circuit, digital filter processing method and digita...
Patent number
9,571,066
Issue date
Feb 14, 2017
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Arithmetic processing apparatus and an arithmetic processing method
Patent number
9,519,457
Issue date
Dec 13, 2016
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Digital filter circuit and digital filter processing method
Patent number
9,509,282
Issue date
Nov 29, 2016
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Digital filter circuit and digital filter control method
Patent number
9,281,801
Issue date
Mar 8, 2016
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor integrated circuit and exponent calculation method
Patent number
8,862,647
Issue date
Oct 14, 2014
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Communication circuit and communication method
Patent number
8,850,256
Issue date
Sep 30, 2014
NEC Corporation
Atsufumi Shibayama
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Signal measuring device and signal measuring method
Patent number
8,635,040
Issue date
Jan 21, 2014
NEC Corporation
Koichi Nose
G01 - MEASURING TESTING
Information
Patent Grant
Clock frequency divider circuit, clock distribution circuit, clock...
Patent number
8,629,703
Issue date
Jan 14, 2014
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor device and communication method
Patent number
8,576,967
Issue date
Nov 5, 2013
NEC Corporation
Atsufumi Shibayama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Clock frequency divider circuit and clock frequency division method
Patent number
8,564,336
Issue date
Oct 22, 2013
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Pipeline circuit, semiconductor device, and pipeline control method
Patent number
8,525,567
Issue date
Sep 3, 2013
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Clock frequency divider circuit, clock distribution circuit, clock...
Patent number
8,422,619
Issue date
Apr 16, 2013
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Clock frequency divider circuit and clock frequency division method
Patent number
8,369,477
Issue date
Feb 5, 2013
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Clock signal frequency dividing circuit and method
Patent number
8,253,450
Issue date
Aug 28, 2012
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Clock generating circuit and clock generating method
Patent number
8,242,814
Issue date
Aug 14, 2012
NEC Corporation
Koichi Nose
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Clock signal frequency dividing circuit and clock signal frequency...
Patent number
8,081,017
Issue date
Dec 20, 2011
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Clock signal dividing circuit
Patent number
7,893,742
Issue date
Feb 22, 2011
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor device and communication control method
Patent number
7,702,945
Issue date
Apr 20, 2010
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Program parallelization device, program parallelization method, and...
Patent number
7,533,375
Issue date
May 12, 2009
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data dependency detection using history table of entry number hashe...
Patent number
7,418,583
Issue date
Aug 26, 2008
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Multi-thread execution method and parallel processor system
Patent number
7,082,601
Issue date
Jul 25, 2006
NEC Corporation
Taku Ohsawa
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
FAST FOURIER TRANSFORM DEVICE, DIGITAL FILTERING DEVICE, FAST FOURI...
Publication number
20230289397
Publication date
Sep 14, 2023
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
OPTICAL COHERENCE TOMOGRAPHY DEVICE
Publication number
20230273010
Publication date
Aug 31, 2023
NEC Corporation
Atsufumi SHIBAYAMA
G01 - MEASURING TESTING
Information
Patent Application
DIGITAL FILTER DEVICE
Publication number
20230082433
Publication date
Mar 16, 2023
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
FAST FOURIER TRANSFORM DEVICE AND DIGITAL FILTER DEVICE
Publication number
20220309123
Publication date
Sep 29, 2022
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
PROCESSING APPARATUS, SYSTEM, BIOMETRIC AUTHENTICATION SYSTEM, PROC...
Publication number
20220277498
Publication date
Sep 1, 2022
NEC Corporation
Yoshimasa ONO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
OPTICAL COHERENCE TOMOGRAPHY APPARATUS, IMAGING METHOD, AND NON-TRA...
Publication number
20220214156
Publication date
Jul 7, 2022
NEC Corporation
Atsufumi SHIBAYAMA
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
DIGITAL FILTER DEVICE, OPERATION METHOD FOR DIGITAL FILTER DEVICE,...
Publication number
20220188014
Publication date
Jun 16, 2022
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
PROCESSING APPARATUS, FINGERPRINT IMAGE EXTRACTION PROCESSING APPAR...
Publication number
20220139105
Publication date
May 5, 2022
NEC Corporation
Yoshimasa ONO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SIGNAL PROCESSING APPARATUS, METHOD, PROGRAM, AND RECORDING MEDIUM
Publication number
20210342102
Publication date
Nov 4, 2021
NEC Corporation
Atsufumi SHIBAYAMA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
FAST FOURIER TRANSFORM DEVICE, DATA SORTING PROCESSING DEVICE, FAST...
Publication number
20200372095
Publication date
Nov 26, 2020
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SIGNAL PROCESSING APPARATUS, METHOD, PROGRAM, AND RECORDING MEDIUM
Publication number
20200334321
Publication date
Oct 22, 2020
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DIGITAL FILTER, FILTER PROCESSING METHOD, AND RECORDING MEDIUM
Publication number
20200304107
Publication date
Sep 24, 2020
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DIGITAL FILTER DEVICE, DIGITAL FILTERING METHOD, AND PROGRAM RECORD...
Publication number
20190129913
Publication date
May 2, 2019
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DIGITAL FILTER CIRCUIT, SIGNAL PROCESSING DEVICE, AND DIGITAL FILTE...
Publication number
20180013409
Publication date
Jan 11, 2018
NEC Corporation
Atsufumi SHIBAYAMA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
FAST FOURIER TRANSFORM DEVICE, FAST FOURIER TRANSFORM METHOD, AND S...
Publication number
20160357706
Publication date
Dec 8, 2016
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DIGITAL FILTER DEVICE, DIGITAL FILTER PROCESSING METHOD, AND STORAG...
Publication number
20160357705
Publication date
Dec 8, 2016
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DIGITAL FILTERING DEVICE, DIGITAL FILTERING METHOD, AND STORAGE MED...
Publication number
20160224093
Publication date
Aug 4, 2016
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DIGITAL FILTER DEVICE, DIGITAL FILTERING METHOD, AND STORAGE MEDIUM...
Publication number
20160140083
Publication date
May 19, 2016
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
FAST FOURIER TRANSFORM DEVICE, FAST FOURIER TRANSFORM METHOD, AND R...
Publication number
20150363360
Publication date
Dec 17, 2015
NEC Corporation
Atsufumi SHIBAYAMA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DIGITAL FILTER CIRCUIT, DIGITAL FILTER PROCESSING METHOD AND DIGITA...
Publication number
20150019608
Publication date
Jan 15, 2015
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DIGITAL FILTER CIRCUIT AND DIGITAL FILTER PROCESSING METHOD
Publication number
20140379771
Publication date
Dec 25, 2014
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
ARITHMETIC PROCESSING APPARATUS AND AN ARITHMETIC PROCESSING METHOD
Publication number
20140089361
Publication date
Mar 27, 2014
NEC Corporation
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DIGITAL FILTER CIRCUIT AND DIGITAL FILTER CONTROL METHOD
Publication number
20130262545
Publication date
Oct 3, 2013
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
CLOCK FREQUENCY DIVIDER CIRCUIT, CLOCK DISTRIBUTION CIRCUIT, CLOCK...
Publication number
20130194008
Publication date
Aug 1, 2013
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SEMICONDUCTOR INTEGRATED CIRCUIT AND EXPONENT CALCULATION METHOD
Publication number
20120117337
Publication date
May 10, 2012
NEC Corporation
Atsufumi Shibayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
PIPELINE CIRCUIT, SEMICONDUCTOR DEVICE, AND PIPELINE CONTROL METHOD
Publication number
20120098583
Publication date
Apr 26, 2012
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
COMMUNICATION CIRCUIT AND COMMUNICATION METHOD
Publication number
20120096300
Publication date
Apr 19, 2012
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
CLOCK FREQUENCY DIVIDER CIRCUIT AND CLOCK FREQUENCY DIVISION METHOD
Publication number
20110222644
Publication date
Sep 15, 2011
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
CLOCK FREQUENCY DIVIDER CIRCUIT, CLOCK DISTRIBUTION CIRCUIT, CLOCK...
Publication number
20110200162
Publication date
Aug 18, 2011
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
CLOCK FREQUENCY DIVIDER CIRCUIT, CLOCK DISTRIBUTION CIRCUIT, CLOCK...
Publication number
20110193596
Publication date
Aug 11, 2011
Atsufumi Shibayama
G06 - COMPUTING CALCULATING COUNTING