Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
SR |
2024-05-20 12:05 |
Kagoshima |
Yokacenter (Kagoshima) (Primary: On-site, Secondary: Online) |
Compact Parallelization of Bandpass Delta-Sigma Modulator Takashi Maehata (SEI), Noriharu Suematsu (Tohoku University) |
[more] |
|
SeMI, RCS, RCC, NS, SR (Joint) |
2023-07-12 12:40 |
Osaka |
Osaka University Nakanoshima Center + Online (Primary: On-site, Secondary: Online) |
Novel digital-to-analog converter immune to asymmetric transition waveform distortion in bandpass delta-sigma modulators Takashi Maehata (SEI), Mizuki Motoyoshi (Shizuoka Institute of Science and Technology), Noriharu Suematsu (Tohoku University) SR2023-26 |
In 5G and next-generation mobile communication systems, to achieve High-speed communication, massive multiple-input and ... [more] |
SR2023-26 pp.1-6 |
MW |
2023-06-22 14:25 |
Kanagawa |
Yugawara-machi Shou-Kou-Kai Bldg. (Primary: On-site, Secondary: Online) |
A Suitable for S-LMBA Consideration of wideband harmonic tuning circuit Hirotaka Asami, Takashi Sumiyoshi, Hiroshi Yamamoto, Takashi Maehata (SEI) MW2023-22 |
In next-generation mobile communications, broadband modulation signals are used to achieve high-capacity and high-speed ... [more] |
MW2023-22 pp.13-18 |
MW |
2022-12-15 15:25 |
Mie |
Jingu-Kaikan(Ise) (Primary: On-site, Secondary: Online) |
Two-Power-Level Impedance Match for Out-phasing Amplifier Takashi Maehata, Takashi Sumiyoshi (SEI), Ren Furumoto, Kenjiro Nishikawa (Kagoshima University) MW2022-136 |
The outphasing amplifier (OPA) has been attracting attention as an amplifier that achieves high efficiency from saturate... [more] |
MW2022-136 pp.27-32 |
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 |
HCGSYMPO (2nd) |
2021-12-15 - 2021-12-17 |
Online |
Online |
Work analysis in production lines using geospatial intelligence technologies Takeshi Kurata (AIST), Munenori Harada, Katsuko T. Nakahira (Nagaoka University of Technology), Takashi Maehata (Tohoku University), Yoshinori Ito, Hideki Aso (JPS) |
In this paper, we report on a case study of work analysis using geospatial intelligence technology conducted on a manufa... [more] |
|
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 |
RCS, SR, SRW (Joint) |
2020-03-04 10:50 |
Tokyo |
Tokyo Institute of Technology (Cancelled but technical report was issued) |
Integrated Indoor Positioning System using Solar-Powered BLE beacon and PDR Takashi Maehata, Naohiro Tada, Hidehiko Hashimoto, Takeshi Kurata (SEI) SR2019-115 |
Visualization of worker and equipment status in the factory is very important to improve equipment utilization rate. Ind... [more] |
SR2019-115 pp.9-16 |
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 |
HCGSYMPO (2nd) |
|
Mie |
Sinfonia Technology Hibiki Hall Ise |
A study of self-customizable visualization systems for production sites Hidehiko Hashimoto, Takashi Maehata, Takeshi Kurata (SEI) |
At production sites, many visualization systems have been utilized. However, it has been reported that it is difficult f... [more] |
|
SR |
2018-05-25 10:00 |
Tokyo |
Tokyo big sight |
[Invited Talk]
Digital Radio Frequency Technologies for Next Generation Wireless Communication Systems Takashi Maehata (Sumitomo Electric Industries), Suguru Kameda, Noriharu Suematsu (Tohoku Univ.) SR2018-11 |
[more] |
SR2018-11 pp.63-70 |
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 |
AP |
2015-02-19 13:45 |
Hyogo |
Chusho-kigyou center at Amagasaki-City |
[Invited Lecture]
Capacity of MIMO systems with Single Base Station Antenna Eiji Mochida, Takashi Maehata (Sumitomo Electric) AP2014-193 |
Recently, operators are facing enormous traffic demand by explosive growth of smartphones. Multiple-input/multiple-outpu... [more] |
AP2014-193 pp.37-41 |
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 |
2014-05-22 12:45 |
Kanagawa |
Toshiba Education & Training Institute |
[Technology Exhibit]
Concurrent Multi-Carrier Transmitter using 1-bit Band-Pass Delta Sigma Modulator Takashi Maehata (SEI), Suguru Kameda, Noriharu Suematsu (Tohoku University) |
[more] |
|
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 |
SR |
2013-05-23 13:25 |
Hiroshima |
ASTER PLAZA (Hiroshima City) |
Principal Technology Development for 1-bit Digital RF Transmitter Takashi Maehata, Kazuyuki Totani (SEI), Suguru Kameda, Noriharu Suematsu (Tohoku Univ.) SR2013-2 |
[more] |
SR2013-2 pp.9-15 |