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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OME | 2023-11-01 13:55 |
Hyogo | JIBASAN Bidg. (Himeji) | Effect of pulse width modulation of illumination light on indoor photovoltaics Kazuya Tada (Univ. Hyogo)  OME2023-44 |
When we target the indoor use of solar cells, we have to consider the characteristics of indoor illumination light. Espe... [more] | OME2023-44 pp.7-11 |
| EE | 2023-01-20 14:40 |
Fukuoka | Kyushu Institute of Technology (Primary: On-site, Secondary: Online) |
Analysis and Design on a Receiver-side PWM-based Load-Independent ZVS Class-E2 Wireless Power Transfer Shoma Shimizu, Tomokazu Mishima (Kobe Univ.) EE2022-51 |
A high efficiency and low-profile high frequency,(HF) power converter is essential for a magnetically resonant wireless ... [more] | EE2022-51 pp.139-144 |
| ICD, CPSY, CAS | 2018-12-23 16:10 |
Okinawa | Comparison between Quadrature-modulation EPWM transmitters with a 90° and 180° hybrid in physical models Tomoaki Morita, Yohtraro Umeda (Tokyo Univ. of Science) CAS2018-115 ICD2018-99 CPSY2018-81 |
Quadrature-modulation envelope-pulse-width-modulation (EPWM) transmitter with a 180° (180HYB system) or 90° hybrid (90HY... [more] | CAS2018-115 ICD2018-99 CPSY2018-81 pp.153-158 |
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| MW | 2018-12-13 15:45 |
Kanagawa | Kanagawa Univ. | Implementation of quadrature-modulation Transmitter for Generating Bi-level EPWM Signal Mizuki Kinoshita, Umeda Yohtaro (Tokyo Univ. of Science) MW2018-124 |
We report a class D power amplifier designed for use at 500 MHz. The power amplifier is fabricated as an integrated circ... [more] | MW2018-124 pp.61-65 |
| MW, EMCJ, EST, IEE-EMC [detail] | 2017-10-20 10:25 |
Akita | Yupopo | A Quadrature-modulation EPWM Transmitter That Uses Co-phase Sine Wave Carriers for I/Q Channel and a 90° Hybrid as a Signal Combiner Tomoaki Morita, Ryo Sakai, Yohtaro Umeda (Tokyo Univ. of Science), Yusuke Kozawa (Ibaraki Univ.) EMCJ2017-45 MW2017-97 EST2017-60 |
Quadrature-modulation (QM) envelope-pulse-width modulation (EPWM) transmitter with a 180° hybrid as a power combiner has... [more] | EMCJ2017-45 MW2017-97 EST2017-60 pp.105-110 |
| MW, ICD | 2017-03-03 09:25 |
Okayama | Okayama Prefectural Univ. | Quadrature-modulation Envelope-pulse-width-modulation Transmission System Using Quadrature Polarized Waves Ryo Sakai, Yohtaro Umeda, Yusuke Kozawa (Tokyo Univ. of Science) MW2016-204 ICD2016-134 |
This paper presents quantitative evaluation of power efficiency decrese by not satisfying the zero current switching (ZC... [more] | MW2016-204 ICD2016-134 pp.89-94 |
| MW, ICD | 2017-03-03 10:50 |
Okayama | Okayama Prefectural Univ. | Speeding up using Parallel-Serial conversion in FPGA implementation of quadrature modulation Envelope Pulse Width Modulation Transmitter Kouhei Nagasawa, Yohtaro Umeda, Yusuke Kozawa (Tokyo Univ. of Science) MW2016-207 ICD2016-137 |
This paper presents a new configuration using a serializer on quadrature-modulation (QM) envelope-pulse-width-modulation... [more] | MW2016-207 ICD2016-137 pp.107-112 |
| LQE, OPE, OCS | 2016-10-28 09:40 |
Miyazaki | Miyazaki Citizen's Plaza | Driving circuit for 32X32 Optical Matrix Switch using High-resolution Pulse-width Modulation Hiroyuki Matsuura, Satoshi Suda, Ken Tanizawa, Keijiro Suzuki, kazuhiro Ikeda, Hitoshi Kawashima, Shu Namiki (AIST) OCS2016-46 OPE2016-87 LQE2016-62 |
A silicon photonic 32X32 strictly non-blocking matrix switch utilizing Mach-Zehnder (MZ) interferometers controlled by t... [more] | OCS2016-46 OPE2016-87 LQE2016-62 pp.65-70 |
| MW | 2014-11-21 10:55 |
Nagasaki | Nagasaki Univ. | Quadrature-modulation Transmitter with Tri-level Delta-sigma Modulation for Generating Bi-level EPWM Signal Takashi Noda, Wataru Someya, Yoshiharu Iikura, Yohtaro Umeda, Yusuke Kozawa (Tokyo Univ. of Science) MW2014-139 |
This paper presents a quadrature-modulation (QM) envelope-pulse-width-modulation (EPWM) transmitter with delta-sigma tri... [more] | MW2014-139 pp.83-88 |
| MW | 2014-11-21 11:20 |
Nagasaki | Nagasaki Univ. | A Polar-modulation EPWM Transmitter with a Class-D Amplifier for OFDM Transmission Yoshiharu Iikura, Yohtaro Umeda, Yusuke Kozawa (Tokyo Univ. of Sience) MW2014-140 |
Power amplifiers for wireless communication systems demand high power efficiency and linearity. Of the available types o... [more] | MW2014-140 pp.89-94 |
| EID, ITE-IDY, ITE-HI, ITE-3DMT, IEE-OQD, SID-JC [detail] | 2014-10-15 13:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg | Pulse-Width Modulation with Current Uniformization for AM-OLED
-- Reduction Effect Confirmation of Pixel-to-Pixel Brightness Deviation and Brightness Degradation -- Mutsumi Kimura, Tomoya Nishiyori, Daisuke Suzuki, Masamichi Koike, Shigeki Sawamura, Masakazu Kato (Ryukoku Univ.) EID2014-8 |
Recently, AM-OLEDs have been researched and developed as ultimate FPDs with advantages such as high image quality, high ... [more] | EID2014-8 pp.1-4 |
| MW | 2014-03-05 15:25 |
Ehime | Ehime University | Modulation Accuracy of a Polar-modulation EPWM Transmitter with a NMOS-type Class-D Power Amplifier Yoshiharu Iikura, Yohtaro Umeda, Yusuke Kozawa (Tokyo Univ. of Science) MW2013-221 |
Switching-mode power amplifiers for wireless communication systems demand high power efficiency and linearity. Of the av... [more] | MW2013-221 pp.139-144 |
| ICD, ITE-IST | 2006-07-27 16:10 |
Shizuoka | Image acquisition with low-voltage pulse-width-modulation image sensor using source modulation Tatsuya Sasaki, Keiichiro Kagawa, Masahiro Nunoshita, Jun Ohta (NAIST) |
We are developing a CMOS image sensor suitable for low voltage driving using source-voltage modulation. In this sensor, ... [more] | ICD2006-69 pp.53-56 |
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| NLP | 2006-03-20 10:45 |
Tokyo | Hosei Univ.(Ichigaya Campus) | On a relaxation oscillator having triangular thrshold Hisanari Honda, Satoshi Akatsu, Hiroyuki Torikai, Toshimichi Saito (HU) |
This paper studies dynamics of a relaxation oscillator whose hysteresis thresholds are controlled by a triangular signal... [more] | NLP2005-138 pp.7-10 |
| ICD | 2005-07-14 14:40 |
Aichi | Toyohashi Univ. of Tech. | 低消費電力アプリケーションに向けた低電圧パルス幅変調方式CMOSイメージセンサ Keiichiro Kagawa (NAIST), Makoto Shouho (Sharp), Masahiro Nunoshita, Jun Ohta (NAIST) |
In this report, we discuss reduction of analog power supply voltage of CMOS image sensors to achieve low power dissipati... [more] | ICD2005-49 pp.55-60 |
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