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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 #
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
MW 2020-12-10
16:00
Kanagawa
(Primary: On-site, Secondary: Online)
Experimental evaluation of signal-to-quantization noise power ratio of transversal filter with power amplifier for EPWM transmitter
Ryuta Sato, Natuki Utigiri, Taishi Sawayama, Yusuke Koike, Yotaro Umeda, Kyoya Takano (TUS) MW2020-77
In recent years, envelope pulse width modulation has been devised for transmitters in wireless communications to meet ma... [more] MW2020-77
pp.36-41
SAT, RCS
(Joint)
2020-08-21
10:55
Online Online [Encouragement Talk] A Fundamental Study Toward the Software Defined Satellite
Shigenori Tani, Yasutaka Yamashita, Michiya Hayama, Masatake Hangai, Hiroshi Aruga (Mitsubishi Electric) SAT2020-20
The software defined satellite (SDS) improves frequency utilization to control resources such as time, frequency, and sp... [more] SAT2020-20
pp.53-57
US 2020-02-28
15:55
Tokyo   Auralization based on local sound field synthesis with multi-channel 1-bit signals
Kakeru Kurokawa, Izumi Tsunokuni, Yusuke Ikeda, Naotoshi Osaka (Tokyo Denki Univ.), Yasuhiro Oikawa (Waseda Univ.) US2019-109
Auralization requires auditory display techniques, which can physically synthesis the desired sound field. To improve sy... [more] US2019-109
pp.57-62
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]
ICD, CPSY, CAS 2018-12-21
13:30
Okinawa   Power-amplifier-inserted Transversal Filter that Recovers Quantization Noise Power by CMOS Rectifier
Yuto Tanaka, Yohtaro Umeda, Kyoya Takano (Tokyo University of Science) CAS2018-78 ICD2018-62 CPSY2018-44
In this paper, we aim to improve power efficiency by using a CMOS rectifier for power-amplifier-inserted transversal fil... [more] CAS2018-78 ICD2018-62 CPSY2018-44
pp.1-5
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
ED, THz 2017-12-18
15:15
Miyagi RIEC, Tohoku Univ [Invited Talk] Improved stability of resonant tunneling diode oscillators and their application to sensors
Koichi Maezawa (Univ. Toyama) ED2017-76
RTD oscillators are one of the most promising candidates for THz signal sources. However, RTD oscillators have stability... [more] ED2017-76
pp.15-18
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
MW, EMCJ, EST, IEE-EMC [detail] 2017-10-19
09:40
Akita Yupopo Comparison of Power Combining Methods in Power-amplifier-inserted Transversal Filter for EPWM Transmitters
Yuto Tanaka, Yohtaro Umeda (TUS), Yusuke Kozawa (Ibaraki Univ.) EMCJ2017-32 MW2017-84 EST2017-47
This paper compares power-amplifier-inserted transversal filter (PAITF) with 180º hybrids and T-junctions for envelope p... [more] EMCJ2017-32 MW2017-84 EST2017-47
pp.11-15
NLP 2017-05-11
11:25
Okayama Okayama University of Science Delta Sigma Domain LDPC Decoder Based on Min-Sum Algorithm
Akiyoshi Yasuda, Hisato Fujisaka, Masaru Fukushima, Takeshi Kamio (Hiroshima City Univ.) NLP2017-5
Combination of interleaving and random error correction code is effective as a measure against burst error when power li... [more] NLP2017-5
pp.23-27
EA 2016-07-08
13:40
Shizuoka Yamaha, Toyooka Factory A Method of Driving Multi-channel System by Using Multiplication Outputs with Random Signals
Shigeto Takeoka (SIST) EA2016-16
In this paper, we will discuss about a multichannel drive method which plays an arbitrary number of individual signals, ... [more] EA2016-16
pp.45-49
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
ICD, CPSY 2014-12-01
12:50
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] Time-to-Digital Converters with Delta-Sigma Modulation -- Key Component of Time-Domain Analog Circuitry --
Haruo Kobayashi (Gunma Univ.) ICD2014-75 CPSY2014-87
This paper presents the research results of delta-sigma time-to-digital converters (TDCs) performed at the author’s labo... [more] ICD2014-75 CPSY2014-87
pp.13-18
ED 2013-08-09
09:00
Toyama University of Toyama MEMS Microphones on InP Substrates for High Performance Digital Ultrasonic Sensors
Shunya Fujino, Yuta Mizuno, Kazuhiro Takaoka, Masayuki Mori, Koichi Maezawa (Univ. of Toyama) ED2013-44
This paper describes the fabrication process of the MEMS microphones on InP substrates. The process is based on ozone as... [more] ED2013-44
pp.33-36
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
EE, CPM 2013-01-25
09:00
Kumamoto   On the effective number of bits of a buck converter with delta-sigma-modulation control
Yuuta Yonemitsu, Tetsuro Tanaka (Kagoshima Univ) EE2012-44 CPM2012-166
The objective of this report is to clarify the output resolution of a buck converter employing digital delta-sigma-modul... [more] EE2012-44 CPM2012-166
pp.93-98
MW 2012-12-13
14:00
Yamanashi Univ. of Yamanashi A study on application of Class-E amplifier to EPWM transmitter
Naoki Oyama, Makoto Taromaru (Fukuoka Univ.) MW2012-128
The PAE of Class-E/F such as switching-mode amplifiers is superior,
but it is nonlinear. EPWM is one of the architectu... [more]
MW2012-128
pp.7-12
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)
 Results 1 - 20 of 27  /  [Next]  
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