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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 27  /  [Next]  
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
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