Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Shunta Iguchi"'
Autor:
Hao Qiu, Yasuaki Kakehi, Yota Mizutani, Makoto Takamiya, Takayuki Hoshi, Toru Sai, Shunta Iguchi, Yuki Uno, Yoshihiro Kawahara
Publikováno v:
Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies. 1:1-17
In this paper, we present an approach to realize the levitation of a small object with an embedded electronic circuit. Luciola is a light-emitting particle with a diameter of 3.5mm and a weight of 16.2mg moving in mid-air in a 10.4cm x 10.4cm x 5.4cm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c84d571b7c3d31a80e8f75f46b17dfdc
https://doi.org/10.1145/3161182
https://doi.org/10.1145/3161182
Publikováno v:
IEEE Journal of Solid-State Circuits. 52:3006-3017
This paper presents a low-power 39.25-MHz crystal oscillator with a new stacked-amplifier architecture achieving the smallest figure of merit (FoM) ever reported for a crystal oscillator for wireless communications. Theoretical analyses of the power
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3642a74ee263cfae4c493c9eced6120d
https://doi.org/10.1109/jssc.2017.2743174
https://doi.org/10.1109/jssc.2017.2743174
Autor:
Yuki Uno, Yota Mizutani, Makoto Takamiya, Toru Sai, Takayuki Hoshi, Yoshihiro Kawahara, Hao Qiu, Yasuaki Kakehi, Shunta Iguchi
Publikováno v:
SIGGRAPH ASIA Emerging Technologies
In this paper, we present an approach to realize the levitation of a small object with an embedded electronic circuit. Luciola is a light-emitting particle with a diameter of 3.5mm and a weight of 16.2mg moving in mid-air. The novelty of this paper i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::867df3d1e26da294c29fab09d1170be9
https://doi.org/10.1145/3275476.3275479
https://doi.org/10.1145/3275476.3275479
Publikováno v:
IEEE Journal of Solid-State Circuits. 51:496-508
This paper presents a variation-tolerant quick-start-up 39.25 MHz crystal oscillator and a theoretical analysis of a proposed chirp injector (CI) and negative resistance booster (NRB) for the quick start up. A new analysis of the theoretical minimum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1f60486def4c7f3b6662060f0a29002
https://doi.org/10.1109/jssc.2015.2499240
https://doi.org/10.1109/jssc.2015.2499240
Autor:
Koichi Ishida, Shunta Iguchi, Pyungwoo Yeon, Makoto Takamiya, Takayasu Sakurai, Hiroshi Fuketa
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 62:938-947
Wireless power transfer enables the frequent and ubiquitous charging of electronic devices. However, the variation of the efficiency and the received power with the transmission distance is an outstanding issue. To solve the problem of efficiency deg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4ecf8d3917d9093fa3c21703e76f9d6
https://doi.org/10.1109/tcsi.2015.2388832
https://doi.org/10.1109/tcsi.2015.2388832
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 61:2978-2986
The efficiency of power amplifiers (PAs) with a small output power (POUT) for short-range wireless sensor networks is limited by the loss in matching networks. To achieve high efficiency, a new design method which calculates the complicated design pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aae07c5320ca1d966f8d81e96472f970
https://doi.org/10.1109/tcsi.2014.2321202
https://doi.org/10.1109/tcsi.2014.2321202
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 11:1710-1713
A magnetically resonant wireless power transmission sheet (WPTS) on a printed circuit board is developed. WPTS wirelessly supplies the power to electronic devices including the wearable wireless healthcare devices anywhere on the sheet with high effi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8ed709d8e8a588cdd1e92098610a893
https://doi.org/10.1109/lawp.2013.2239600
https://doi.org/10.1109/lawp.2013.2239600
Publikováno v:
VLSIC
To reduce the start-up time of a crystal oscillator (XO), a chirp injection (CI) and a negative resistance booster (NRB) are proposed. By combining CI and NRB, the measured start-up time of a 39-MHz XO in 180-nm CMOS is reduced by 92% from 2.1ms to 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba0874062f59204b324c5d20a489f1c4
https://doi.org/10.1109/vlsic.2014.6858449
https://doi.org/10.1109/vlsic.2014.6858449
Publikováno v:
2013 IEEE Wireless Power Transfer (WPT).
In a magnetically resonant wireless power transmission system, a DC-DC power transmission efficiency (ηTOTAL) at an inherent resonant frequency (fRES) is degraded when the distance between a transmitter (TX) coil and a receiver (RX) coil is short, b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aae07ec3fcb19c1201ce0fcf8923c821
https://doi.org/10.1109/wpt.2013.6556873
https://doi.org/10.1109/wpt.2013.6556873
Autor:
Kazunori Watanabe, Yunfei Zheng, Kentaro Honda, M. Takamiya, Shunta Iguchi, A. Saito, Takeshi Sakurai
Publikováno v:
ASP-DAC
A 1-Mbps, 315MHz OOK transceiver in 40-nm CMOS for body area networks is developed. Both a 38-pJ/bit carrier-frequency-free intermittent sampling receiver with -55dBm sensitivity and a 36-pJ/bit transmitter applied dual supply voltage scheme with -20
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c4eb197484d726b67cf8baa8dd4d117
https://doi.org/10.1109/aspdac.2013.6509572
https://doi.org/10.1109/aspdac.2013.6509572