半导体学报2008，Vol.29Issue(9)：1745-1752,8.
一种带植入式数字信号处理器的新型人工耳蜗系统
A New Cochlear Prosthetic System with an Implanted DSP
摘要
Abstract
This paper proposes a cochlear prosthetic system with an implanted digital signal processor (DSP). This system transmits voice-band signals with a low data rate through the wireless link, free of the data-rate limitation and suitable for future development. By optimizing the speech processing algorithm and the DSP hardware design, the implanted DSP manages to execute the continuous interleaved sampling (CIS) algorithm at a clock frequency of 3MHz and a power consumption of only 1.91mW. With an analytic power-transmission efficiency of the wireless inductive link (40%), the power overhead caused by the implanted DSP is derived as 2.87mW, which is trivial when compared with the power consumption of existing cochlear prosthetic systems (tens of milliwatts). With the DSP implanted, this new system can be easily developed into a fully implanted cochlear prosthesis.关键词
人工耳蜗/低功耗/算法优化/数字信号处理器/能量传输效率Key words
Cochlear prosthesis/low power/algorithm optimization/digital signal processor/power-transmission efficiency分类
信息技术与安全科学引用本文复制引用
麦宋平,张春,晁军,王志华..一种带植入式数字信号处理器的新型人工耳蜗系统[J].半导体学报,2008,29(9):1745-1752,8.基金项目
国家自然科学基金资助项目(批准号:60475018) Project supported by the National Natural Science Foundation of China (No. 60475018) （批准号:60475018）
