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首页> 外文期刊>IEEE Transactions on Automatic Control >Single-chip CMOS image sensors for a retina implant system
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Single-chip CMOS image sensors for a retina implant system

机译:用于视网膜植入系统的单芯片CMOS图像传感器

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摘要

This work describes the architecture and realization of microelectronic components for a retina-implant system that will provide visual sensations to patients suffering from photoreceptor degeneration. Special circuitry has been developed for afast single-chip CMOS image sensor system, which provides high dynamic range of more than seven decades (without any electronic or mechanical shutter) corresponding to the performance of the human eye. This image sensor system is directly coupled to adigital filter and a signal processor that compute the so-called receptive-field function for generation of the stimulation data. These external components are wireless, linked to an implanted flexible silicon multielectrode stimulator, which generateselectrical signals for electrostimulation of the intact ganglion cells. All components, including additional hardware for digital signal processing and wireless data and power transmission, have been fabricated using in-house standard CMOS technology.
机译:这项工作描述了视网膜植入系统的微电子元件的架构和实现,该系统将为患有感光器变性的患者提供视觉感觉。为快速单芯片CMOS图像传感器系统开发了特殊电路,该系统可提供超过七十年的高动态范围(无需任何电子或机械快门),与人眼的性能相对应。该图像传感器系统直接耦合到数字滤波器和信号处理器,该信号处理器计算所谓的感受野函数以生成刺激数据。这些外部组件是无线的,连接到植入的柔性硅多电极刺激器,该刺激器产生电信号以电刺激完整的神经节细胞。所有组件,包括用于数字信号处理、无线数据和电力传输的附加硬件,均采用内部标准CMOS技术制造。

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