A High Efficiency System-on-Chip Design for Portable Continuous Wave Diffusion Optical Tomography System

• Main Authors: Kang, Shih, 康適
• Other Authors: Fang, Wai-Chi
• Format: Others
• Language: en_US
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/15731984181763880593

碩士 === 國立交通大學 === 電子研究所 === 100 === In 1994, seven out of one hundred people in Taiwan are over sixty-five years old and thus Taiwan was characterized as an aging society. This phenomenon is not only in Taiwan but also around the world. For the elder population is increasing, a popular health-care system for public usage has become an important issue in recent years, and that is, building a portable biomedical real-time monitory system is useful for people urgently in need. In this thesis, a System on a Chip design (SoC) for continuous wave (CW) diffusion optical tomography (DOT) signal processor is presented, and which aims to help outpatients discover and monitor breast cancer and stroke in early stage, and thus for physician’s early diagnosis. The proposed system is able to detect impurities in homogeneous medium, i.e. human body. For portable goal and requirement of real-time analysis, very-large-scale integration (VLSI) technique is used to implement CW-DOT health-care system. The main function of the system include system controller, forward model generator, Jacobi singular value decomposition (JSVD) engine, and image reconstructor. Especially, most of currently CW-DOT systems for generating forward model and solving inverse problem are usually performed by off-line computation so that real-time calculation will be a valuable contribution. And large system size makes inconvenient in actual usage. The corresponding front-end sensor circuit is also complete. Finally, the system performs successful work on ARM-based SoC platform and applied in real-time DOT application system. Also, the system is implemented by Taiwan Semiconductor Manufacturing Company (TSMC) 90nm CMOS technology through the National Chip Implementation Center (CIC).