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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 #
SR 2022-05-12
10:30
Tokyo NICT Koganei
(Primary: On-site, Secondary: Online)
Parallelization and Time Division Multiplexing for 1-bit Bandpass Delta-Sigma Modulator
Takashi Maehata (SEI), Noriharu Suematsu (Tohoku University) SR2022-5
The 1-bit bandpass delta-sigma modulator (1-bit BP-DSM) outputs RF signals directly from the digital part without using ... [more] SR2022-5
pp.19-26
SR 2021-11-04
09:55
Online Online Wideband Single-bit Bandpass Delta Sigma Modulator
Takashi Maehata (SEI), Noriharu Suematsu (Tohoku University) SR2021-42
In 5G and next-generation mobile communication systems, to achieve high-speed communication, massive multiple-input and ... [more] SR2021-42
pp.9-16
RCS 2020-10-23
13:10
Online Online [Invited Lecture] Sensor Data Fusion for Indoor Positioning System
Takashi Maehata, Hidehiko Hashimoto (SEI), Takeshi Kurata (AIST) RCS2020-106
In order to improve the operation rate of the equipment in factory, it is very important to understand the status of equ... [more] RCS2020-106
pp.75-79
SeMI, RCS, NS, SR, RCC
(Joint)
2019-07-11
10:00
Osaka I-Site Nanba(Osaka) A Study on Self-Interference Suppression in Digital RF Front End
Takashi Maehata (SEI), Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu (Tohoku University) SR2019-30
 [more] SR2019-30
pp.65-71
NS, ASN, RCC, RCS, SR
(Joint)
2017-07-19
09:40
Hokkaido Hokkaido Univ. Distortion Compensation Method with Asymmetric Waveform Consideration in Concurrent Dual-band 1-bit Bandpass Delta-Sigma Modulator
Takashi Maehata (SEI), Suguru Kameda, Noriharu Suematsu (Tohoku Uni.) SR2017-26
 [more] SR2017-26
pp.15-21
SR 2016-10-28
16:10
Osaka Osaka Univ. Nakanoshima Center [Invited Talk] Research and Development of Digital Radio Frequency Technology
Takashi Maehata (SEI), Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu (Tohoku Uni.) SR2016-77
We propose the digital RF front end to consist of 1-bit digital RF transmitter and direct RF undersampling receiver. Thi... [more] SR2016-77
pp.127-134
RCC, ASN, RCS, NS, SR
(Joint)
2015-07-29
15:00
Nagano JA Naganoken Bldg. Compensation for Nonlinear Intersymbol Interference of 1-bit Bandpass Delta-Sigma Modulation
Takashi Maehata (SEI), Suguru Kameda, Noriharu Suematsu (Tohoku University) SR2015-17
 [more] SR2015-17
pp.7-11
SAT, RCS
(Joint)
2014-08-19
13:00
Kochi Kochi City Cultura-Plaza CUL-PORT Digitally Enhanced Harmonic Transmitter of 1-bit Bandpass ΔΣ Modulator
Takashi Maehata (SEI), Suguru Kameda, Noriharu Suematsu (Tohoku University) SAT2014-27
 [more] SAT2014-27
pp.11-14
SR 2014-05-23
13:45
Kanagawa Toshiba Education & Training Institute Estimation method for an asymmetric waveform in 1-bit digital RF transmitter
Takashi Maehata (SEI), Suguru Kameda, Noriharu Suematsu (Tohoku University) SR2014-16
The output of 1-bit digital radio frequency (1-bit DRF) transmitter, using a bandpass delta sigma modulator, ideally has... [more] SR2014-16
pp.103-109
ED, MW 2014-01-17
14:20
Tokyo Kikai-Shinko-Kaikan Bldg. E-Band Transmitter and Receiver Modules With Simply Reflow-Soldered 3-D WLCSP MMIC's
Koji Tsukashima, Miki Kubota, Osamu Baba, Takeshi Kawasaki, Atsushi Yonamine, Tsuneo Tokumitsu (SEI), Yuichi Hasegawa (SEDI) ED2013-131 MW2013-196
 [more] ED2013-131 MW2013-196
pp.121-124
SR, AN, USN, RCS
(Joint)
2012-10-18
15:40
Fukuoka Fukuoka univ. A Novel 1-bit Feedforward Distorted Compensation for Bandpass ΔΣ modulation
Takashi Maehata, Kazuyuki Totani (SEI), Suguru Kameda, Noriharu Suematsu (Tohoku University) RCS2012-143 SR2012-63 AN2012-37 USN2012-40
We propose a novel 1-bit feedforward distorted compensation technology in a direct radio frequency converter (DRFC) whic... [more] RCS2012-143 SR2012-63 AN2012-37 USN2012-40
pp.107-114(RCS), pp.165-172(SR), pp.77-84(AN), pp.71-78(USN)
LQE, OPE 2011-06-30
14:00
Tokyo Kikai-Shinko-Kaikan Bldg. Technologies on multi-core fiber and spatial division multiplexing enabling extremely advanced optical transmission
Jun Sakaguchi, Yoshinari Awaji, Naoya Wada, Atsushi Kanno, Tetsuya Kawanishi (NICT), Tetsuya Hayashi, Toshiki Taru (SEI), Tetsuya Kobayashi, Masayuki Watanabe (OPTOQUEST) OPE2011-21 LQE2011-21
Future large-scale data transmission requires new technologies to overcome the capacity limit of conventional optical fi... [more] OPE2011-21 LQE2011-21
pp.29-34
PN, OCS, NS
(Joint)
2011-06-23
14:50
Wakayama Wakayama University Transmission of 109-Tb/s SDM/WDM/PDM-QPSK signals through 16.8-km homogeneous 7-core fiber
Jun Sakaguchi, Yoshinari Awaji, Naoya Wada (NICT), Tetsuya Hayashi, Toshiki Taru (SEI), Tetsuya Kobayashi, Masayuki Watanabe (OPTOQUEST) OCS2011-16
Multi-core fiber has been expected as an innovative device to enable extremely-large-scale data transmission beyond the ... [more] OCS2011-16
pp.27-31
OFT 2011-01-27
13:00
Nagasaki   [Invited Talk] Report on IWCS2010
Takashi Takada, Kazunari Fujimoto, Tomoyuki Hattori (SEI) OFT2010-47
 [more] OFT2010-47
pp.1-4
OPE, OCS
(Joint)
2008-05-16
14:20
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] Report on OFC/NFOEC 2008 -- Optical fiber --
Takashi Sasaki (Sumitomo Electric) OPE2008-12 OCS2008-4
 [more] OPE2008-12 OCS2008-4
pp.17-20
IEE-CMN, OFT, OCS, ITE-BCT
(Joint)
2005-11-24
14:10
Osaka The Kansai Electric Power Co.,INC. Development of optical wiring products in house for FTTH
Kenichiro Ohtsuka, Daizo Nishioka, Yukihiro Yokomachi, Masahiro Hamada, Kazuhito Saitou (Sumiden)
 [more] OFT2005-40
pp.27-30
 Results 1 - 16 of 16  /   
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