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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 16 of 16  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
ICTSSL, CAS 2024-01-26
15:35
Kanagawa
(Primary: On-site, Secondary: Online)
Proposal of a mathematical model for COVID-19 infection considering asymptomatic and quarantine state
Takuya Okada, Ken Nakajima, Nao Ito (NIT, Toyama) CAS2023-106 ICTSSL2023-59
In this study, we aim to reproduce the actual infection situation by proposing the SEIQARD model, which considers “asymp... [more] CAS2023-106 ICTSSL2023-59
pp.115-118
MRIS, ITE-MMS 2021-06-10
14:20
Miyagi RIEC, Tohoku U.
(Primary: On-site, Secondary: Online)
A study of equalization for reproducing a double-layer magnetic recording medium
Yasuaki Nakamura, Takuya Okada, Madoka Nishikawa (Ehime Univ.), Yasushi Kanai (Niigata Insit.), Yoshihiro Okamoto (Ehime Univ.) MRIS2021-3
 [more] MRIS2021-3
pp.12-17
PN 2021-03-01
17:50
Online Online [Invited Lecture] 20 Gbps Photonic Digital to Analog Conversion Using Frequency Chirp in a SOA
Masaki Sagara, Takuya Okada, Wang Rui, Junichi Tsuda, Motoharu Matsuura (Univ. of Electro-Commun.) PN2020-49
In semiconductor optical amplifiers (SOAs), when an optical signal is amplified, the frequency chirp is induced at the l... [more] PN2020-49
pp.46-50
PN 2020-08-24
10:05
Online Online 4-bit Photonic Digital-to-Analog Conversion Using a Frequency Chirp in a Semiconductor Optical Amplifier
Masaki Sagara, Takuya Okada, Wang Rui, Motoharu Matsuura (Univ. of Electro-Commun.) PN2020-13
In semiconductor optical amplifiers (SOAs), when an optical signal is amplified, the frequency chirp is induced at the l... [more] PN2020-13
pp.1-5
PN 2020-03-03
11:25
Kagoshima
(Cancelled but technical report was issued)
Photonic digital-to-analog and analog-to-digital conversion based on frequency chirp in SOAs
Takuya Okada, Wang Rui, Masaki Sagara, Motoharu Matsuura (UEC) PN2019-66
Frequency chirp is a unique phenomenon in semiconductor optical amplifiers (SOAs), and provides intensity-to-frequency c... [more] PN2019-66
pp.81-85
RISING
(2nd)
2019-11-26
10:30
Tokyo Fukutake Learning Theater, Hongo Campus, Univ. Tokyo [Poster Presentation] Photonic Analog-to-Digital and Digital-to-Analog Conversion Using Semiconductor Optical Amplifiers
Takuya Okada, Ryuichi Kobayashi, Wang Rui, Masaki Sagara, Motoharu Matsuura (UEC)
Frequency chirp is a unique phenomenon in semiconductor optical amplifiers (SOAs), and provides intensity-to-frequency c... [more]
OFT 2019-05-16
14:00
Osaka I-site NANBA [Poster Presentation] Electrically-Superimposed Analog and Digital Signal Transmission Over Multimode Fibers
Ryuichi Kobayashi, Tatsuya Ohtsuki, Takuya Okada (UEC), Takamitsu Aiba (YAZAKI Corp.), Motoharu Matsuura (UEC) OFT2019-5
In future mobile networks, the use of wireless signals with a higher frequency will be required. Radio-over-fiber (RoF) ... [more] OFT2019-5
pp.21-24
OFT 2019-05-16
14:00
Osaka I-site NANBA [Poster Presentation] Photonic Digital-to-Analog Conversion Using Frequency Chirp in a Quantum-Dot Semiconductor Optical Amplifier
Takuya Okada, Ryuichi Kobayashi, Motoharu Matsuura (UEC) OFT2019-6
In this work, we propose a photonic digital-to-analog conversion (PDAC) based on frequency chirp using a SOA and followi... [more] OFT2019-6
pp.25-28
OFT 2019-05-16
16:00
Osaka I-site NANBA [Poster Presentation] Evaluation of Frequency Response of Feed Systems for Controlling Supply Power via Power-over-Fiber Systems
Hayato Nomoto, Daisuke Kamiyama, Nana Tajima, Takuya Okada, Motoharu Matsuura (The Univ. of Electro-Communications) OFT2019-15
In order to reduce the consumption power by controlling feed light in Radio-over-fiber (RoF) networks with Power-over-fi... [more] OFT2019-15
pp.65-68
PN 2018-03-06
11:45
Kagoshima Minami Tanemachi Shoko Kaikan Improvement of Quantization Level for Photonic Analog-to-Digital Conversion Using Frequency Chirp in a QD-SOA
Hiroki Hoshino, Takuya Okada, Motoharu Matsuura (UEC) PN2017-108
 [more] PN2017-108
pp.111-116
EID, ITE-IDY, IEIJ-SSL, SID-JC, IEE-EDD [detail] 2018-01-26
12:05
Shizuoka Shizuoka Univ., Hamamatsu Picture Level Control Method using Gray-scale Segmentation for Large OLED Displays
Takuya Okada, Takenobu Usui, Yoshihide Fujisaki (NHK STRL)
 [more]
EID, ITE-IDY, IEE-EDD, IEIJ-SSL, SID-JC [detail] 2017-01-27
10:30
Tokushima Tokushima Univ. A study of a driving method for surpressing image distorsion for a tiled OLED display
Takenobu Usui, Takuya Okada, Yoshimichi Takano, Toshihiro Yamamoto (NHK)
 [more]
TL 2016-10-09
16:40
Hyogo Kobe Gakuin University (Port Island Campus) An investigation of explanation for typical partial structures extracted by source code mining
Satoshi Oga, Yoshiki Mashima, Takuya Okada, Kazuhiro Takeuchi (OECU) TL2016-36
Natural language is one of the common ways used for obtaining a mutual understanding of functions in program code.
Howe... [more]
TL2016-36
pp.59-62
IA 2009-12-18
15:50
Tokyo Kikai-Shinko-Kaikan Bldg Deployment of Live E! sensors in Nichinan Town
Masakazu Imai, Takuya Okada (Tottori Univ. of Environmental Studies) IA2009-78
In this paper, we will describe the details of deployment of Live E! sensors in Nichinan Town, Tottori Prefecture. We in... [more] IA2009-78
pp.73-78
IA 2009-12-18
16:15
Tokyo Kikai-Shinko-Kaikan Bldg Visualization of Live E! Data
Takuya Okada, Masakazu Imai (Tottori Univ. of Environmental Studies) IA2009-79
We developed an application to visualize data stored in the servers of the Live E! project. The application uses the API... [more] IA2009-79
pp.79-84
IA 2009-07-17
10:25
Tokyo IIJ Kanda Jinbocho Bldg. A Measurement System of Distribution of Temperature
Takuya Okada, Masakazu Imai (Tottori Univ. of Environmental Studies) IA2009-23
We built the system which measures the distribution of temperature densely not only in the spatial domain but also in th... [more] IA2009-23
pp.13-18
 Results 1 - 16 of 16  /   
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