Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
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 |
2022-11-16 11:25 |
Nagasaki |
Fukue-Bunka-Kaikan (Primary: On-site, Secondary: Online) |
SNR improvement of Digital RF Signal Generator using Delta-Sigma Modulator with Parallelized Quantizers Hiroyuki Mizutani, Michiya Hayama, Tatsuya Hagiwara, Hideyuki Nakamizo (Mitsubishi Electric Corp.) MW2022-125 |
With the recent increase in the speed of FPGAs, the application of a digital RF signal generator to a transmitter is bei... [more] |
MW2022-125 pp.85-89 |
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 |
RCS, SR, SRW (Joint) |
2022-03-04 16:00 |
Online |
Online |
OFDM Wireless Receivers based on Time-to-Digital Conversion Yang Yang, Fukawa Kazuhiko, Chang Yuyuan (Tokyo Inst. of Tech.) RCS2021-292 |
To aim at low-cost OFDM wireless receivers with low-power, the report investigates a new analog-to-digital converter (AD... [more] |
RCS2021-292 pp.201-206 |
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 |
PEM (Workshop) |
2019-11-18 - 2019-11-19 |
Mie |
Sinfonia Technology Hibiki Hall Ise (Ise Tourism and Culture Hall) |
[Poster Presentation]
Analysis of Polarization-Reversed Electro-Optic Modulator with Arbitrary Transfer Function and its Application to Pre-Equalization of Signal Distortion by Fiber Dispersion Takaba Kenta, Murata Hiroshi (Mie Univ) |
We have proposed a pre-equalizing electro-optic (EO) modulator utilizing the velocity mismatching between lightwave and ... [more] |
|
EA |
2018-10-11 15:20 |
Fukushima |
Iwaki business Innovation Center (Iwaki) |
Generation of Wavefront by High Density Electro-dynamic Multiplication Output Loudspeaker Array Using Multiple Inputs Delta-sigma Modulator Takeru Sonobe, Shigeto Takeoka (SIST) EA2018-56 |
It is known that in order to exactly reproduce the three-dimensional sound field, it is necessary to set a speaker for e... [more] |
EA2018-56 pp.13-19 |
AP, MW (Joint) |
2018-09-21 09:30 |
Tokyo |
Tokyo Tech |
A 26GHz-band Image Enhancement Type 1-Bit DAC for Direct Digital RF Modulator Junhao Zhang, Masafumi Kazuno, Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu (Tohoku Univ.) MW2018-62 |
We have proposed 1-bit bandpass ΔΣ modulator using high order image component as a configuration of direct digital RF mo... [more] |
MW2018-62 pp.17-21 |
EA, ASJ-H |
2017-12-01 16:40 |
Overseas |
University of Auckland (New Zealand) |
Matrix Driving Method for Multichannel Loudspeaker using Multiplication-output and Delta-sigma Modulator with Multiple inputs Shigeto Takeoka (Shizuoka Inst. of Science and Tech.) EA2017-83 |
A sound wave is a physical phenomenon in which three-dimensional vibrations are propagated, in principle. It is known th... [more] |
EA2017-83 pp.133-138 |
AP, MW (Joint) |
2017-09-22 11:10 |
Saitama |
Saitama University |
A Study on the SNR in Higher Nyquist Zone of 1-Bit Band-Pass Delta-Sigma Modulator using Manchester Coding Masafumi Kazuno, Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu (Tohoku Univ.) MW2017-73 |
A 1-bit $delta$$sigma$ modulator using the first Nyquist zone has been reported as a method of directly generating an RF... [more] |
MW2017-73 pp.29-34 |
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 |
2016-01-29 15:30 |
Osaka |
Kansai University Umekita Laboratory |
Rate-distortion analysis on Delta-Sigma Modulators Teruyuki Shiraki, Shuichi Ohno (Hiroshima Univ.) RCC2015-93 |
This paper analyzes rate-distortion of Delta-Sigma modulator. First, we derive the magnitude response of the error-feedb... [more] |
RCC2015-93 pp.37-40 |
ICD, ITE-IST |
2015-07-03 11:45 |
Kanagawa |
National Defense Academy |
A Design of Delta-Sigma-Modulator-Based Digitally-Controlled Oscillator with Dynamic Element Matching Jungnam Bae, Saichandrateja Radhapuram, Ikkyun Jo (Osaka Univ.), Takao Kihara (Osaka Institute of Tech.), Toshimasa Matsuoka (Osaka Univ.) ICD2015-20 |
We present a low-voltage digitally-controlled oscillator (DCO) with delta-sigma-modulator (DSM) for medical implant comm... [more] |
ICD2015-20 pp.37-40 |
SIP, RCS |
2015-01-22 11:30 |
Okayama |
Okayama Univ. |
FPGA Design of ANC-EPWM Transmitter Takashi Funabashi, Yuelin Ma, Yasushi Yamao (UEC) SIP2014-87 RCS2014-275 |
OFDM scheme is widely used for broadband mobile communications. Since it has high PAPR, it is difficult to amplify the O... [more] |
SIP2014-87 RCS2014-275 pp.37-42 |
MW, ED |
2015-01-16 13:25 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Digital Doherty Transmitter with Envelope ΔΣ Modulated Class-D GaN Amplifier for 800 MHz band Keiichi Motoi (NEC), Andreas Wentzel (FBH), Masaaki Tanio, Shinichi Hori, Makoto Hayakawa (NEC), Wolfgang Heinrich (FBH), Kazuaki Kunihiro (NEC) ED2014-131 MW2014-195 |
This paper presents a novel transmitter (Tx) architecture combining voltage-mode class-D power amplifiers (PAs) with an ... [more] |
ED2014-131 MW2014-195 pp.83-88 |
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 |
ICD, ITE-IST |
2013-07-05 13:15 |
Hokkaido |
San Refre Hakodate |
[Invited Talk]
Design Techniques for High-Performance Continuous-Time Delta-Sigma Modulators Shiro Dosho (Panasonic) ICD2013-37 |
Along with miniaturization of CMOS-LSIs, analog-to-digital converters have been highly developed. Especially, performanc... [more] |
ICD2013-37 pp.81-88 |
RCS, SR, SRW (Joint) |
2013-03-01 13:00 |
Tokyo |
Waseda Univ. |
ANC-EPWM Transmitter Employing 3rd-order Delta-Sigma Modulator Koji Iwaki, Takashi Funabashi, Yasushi Yamao (UEC) RCS2012-360 |
OFDM is widely used for mobile communications because it has high spectral efficiency and robustness against multipath f... [more] |
RCS2012-360 pp.453-458 |
SR, RCS, SRW (Joint) |
2012-03-09 16:40 |
Kanagawa |
YRP |
ANC-EPWM Transmitter using Maximally Flat IIR Filter Koji Iwaki, Shinsuke Yokozawa, Yasushi Yamao (UEC) RCS2011-373 |
OFDM is widely used for mobile communications because it has high spectral efficiency and robustness for multipath fadin... [more] |
RCS2011-373 pp.341-346 |
ICD, ITE-IST |
2010-07-23 16:35 |
Osaka |
Josho Gakuen Osaka Center |
Self-Dithered Digital Delta Sigma Modulators for Fractional-N Frequency Synthesizers Zule Xu, Jun Gyu Lee, Shoichi Masui (Tohoku Univ.) ICD2010-36 |
Digital delta-sigma modulators applied in fractional-N frequency synthesizers suffer from spurious tones which undermine... [more] |
ICD2010-36 pp.121-126 |