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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 25  /  [Next]  
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
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
RCS, SAT
(Joint)
2009-12-18
15:30
Tokyo Kikai-Shinko-Kaikan Bldg. A Study on Quantization Noise Reduction of Delta-Sigma Modulator with Nonuniform Quantization
Mao Hagiwara (Chuo Univ.), Toru Kitayabu, Hiroyasu Ishikawa (KDDI R&D Labs.), Hiroshi Shirai (Chuo Univ.) RCS2009-197
In this paper, a novel delta-sigma modulator which has a non-uniform quantizer is proposed. A delta-sigma modulator is u... [more] RCS2009-197
pp.179-184
CAS, NLP 2009-01-23
10:55
Miyazaki   A Design of Delta-Sigma Modulator Using Chopper Stabilization and Correlated Double Sampling
Yuki Kodama, Koichi Tanno, Ryoichi Miyauchi (Univ. of Miyazaki), Hisashi Tanaka (Miyakonojo Nat'l Coll of Tech.), Hiroki Tamura (Univ. of Miyazaki) CAS2008-89 NLP2008-119
This paper describes improvement of the signal-to-noise ratio (SNR) in delta-sigma modulators. The $1/f$ noise in an am... [more] CAS2008-89 NLP2008-119
pp.143-146
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