Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Akira Maeki"'
Publikováno v:
Frontiers in Research Metrics and Analytics, Vol 5 (2020)
This study analyzes how characteristics in the careers of star researchers affect the outcomes of research and development (R&D), based on a case study in a Japanese semiconductor company. By analyzing the collaboration network of patent coinventors
Externí odkaz:
https://doaj.org/article/d1ae1fa94b8242c6967bb8d6dba8c49d
Publikováno v:
Frontiers in Research Metrics and Analytics
Frontiers in Research Metrics and Analytics, Vol 5 (2020)
Frontiers in Research Metrics and Analytics, Vol 5 (2020)
This study analyzes how characteristics in the careers of star researchers affect the outcomes of research and development (R&D), based on a case study in a Japanese semiconductor company. By analyzing the collaboration network of patent coinventors
Autor:
Akira Maeki
Publikováno v:
IEICE Transactions on Communications. :2703-2708
Autor:
Ryosuke Fujiwara, Goichi Ono, Akira Maeki, Kenichi Mizugaki, Tatsuo Nakagawa, Takayasu Norimatsu, Takahide Terada, Masayuki Miyazaki
Publikováno v:
IEICE Transactions on Communications. :777-785
In this work, an ultra-wideband impulse radio (UWB-IR) transceiver with accurate time-of-arrival (TOA) estimation for a ranging/positioning system was developed for wireless sensor network applications. The system uses an impulse radio characterized
Autor:
M. Miyazaki, Ryosuke Fujiwara, Kei Suzuki, Tatsuo Nakagawa, Goichi Ono, Kazuo Yano, Takahide Terada, Ken Sakamura, Takayasu Norimatsu, Noboru Koshizuka, Satoru Kobayashi, Akira Maeki, Yuji Ogata
Publikováno v:
IEEE Journal of Solid-State Circuits. 44:2702-2710
A low power ultra-wideband impulse radio (UWB-IR) receiver was developed in 0.18-mum CMOS. All circuits of the receiver AFE operate intermittently with a sampling clock of an analog-digital converter (ADC). The sampling rate of the ADC is equal to th
Autor:
Goichi Ono, Noboru Koshizuka, Ken Sakamura, Miki Hayakawa, Ryosuke Fujiwara, Masayuki Miyazaki, Takayasu Norimatsu, Tatsuo Nakagawa, Shinsuke Kobayashi, Masaru Kokubo, Yasuyuki Okuma, Kenichi Mizugaki, Akira Maeki
Publikováno v:
IEICE Transactions on Communications. :518-526
A direct-sequence ultra-wideband impulse radio (DSUWB-IR) system is developed for low-power wireless applications such as wireless sensor networks. This system adopts impulse radio characterized by a low duty cycle, and a direct-sequence 0.7-GHz band
Publikováno v:
IEICE Transactions on Communications. :3438-3441
An intermittent wireless communication system has been developed for low-power sensor networks that improves sensor network efficiency by promoting cooperative optimization among the hardware architecture, communication protocol, and multiple access
Publikováno v:
ISCAS
A new architecture has been designed and demonstrated for a low-power SP10T-RF-Switch-IC using 0.18μm SOI-CMOS, implementing an RF-Switch, negative voltage generator, and MIPI in a chip. Clock frequency of the negative voltage generator is controlle
Autor:
Ryosuke Fujiwara, Kazuo Yano, Goichi Ono, Noboru Koshizuka, Ken Sakamura, Takayasu Norimatsu, Shinsuke Kobayashi, Kenichi Mizugaki, Kei Suzuki, Tatsuo Nakagawa, Yuji Ogata, Akira Maeki, Takahide Terada, M. Miyazaki
Publikováno v:
2007 IEEE Symposium on VLSI Circuits.
A low power receiver analog front end (AFE) for ultra-wideband impulse radio (UWB-IR) was developed in 0.18 mum CMOS. All circuits of the receiver AFE operate intermittently with a sampling clock of an analog-digital converter (ADC). The sampling rat
Publikováno v:
ISCAS (5)
In this paper, a rapid signal-acquisition method is proposed for carrier-based ultra-wideband impulse-radio systems in low-data-rate applications such as sensor networks. For low-data-rate ultra-wideband impulse radio systems, highly precise synchron