| Project/Area Number |
13450139
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
電子デバイス・機器工学
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
MASU Kazuya Tokyo Institute of Technology, Precision and Intelligence Lab., Professor, 精密工学研究所, 教授 (20157192)
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| Co-Investigator(Kenkyū-buntansha) |
OKADA Kenichi Tokyo Institute of Technology, Precision and Intelligence Lab., Assistant Professor, 精密工学研究所, 助手 (70361772)
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| Project Period (FY) |
2001 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥14,900,000 (Direct Cost: ¥14,900,000)
Fiscal Year 2003: ¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2002: ¥4,800,000 (Direct Cost: ¥4,800,000)
Fiscal Year 2001: ¥6,700,000 (Direct Cost: ¥6,700,000)
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| Keywords | ULSI / Silicon / Wireless Communication / in vivo / Healthcare Chip |
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| Research Abstract |
Bio sensors have been developed using bio MEMS technology as a key device of μ-TAS (micro-Total Analytical System). This work investigates a small-size healthcare device which uses wireless communication through human body. It can realize interactive sensing of pH in stomach, internal body temperature, and so on. Transmission characteristics of human body are measured at several frequencies. There are two types of transmission : electromagnetic wave transmission and electromagnetic coupling transmission. The electromagnetic coupling transmission has advantageous to the electromagnetic wave transmission because of attenuation characteristics. We developed an in-vivo wireless communication chip using the electromagnetic coupling transmission at 13.56MHz. It can realize battery-less communication since power is supplied by induced electromotive force. We propose a pulse interval modulation to communicate under such the large attenuation environment. PIM does not depend on magnitude of transmitted signal. From these results, the survey for in-vivo wireless communication system has been established.
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