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 |