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Ultra-low-power wireless transmitter for neural prostheses with modified pulse position modulation

机译:用于神经假体的超低功耗无线发射器具有改进的脉冲位置调制

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摘要

An ultra-low-power wireless transmitter for embedded bionic systems is proposed, which achieves 40 pJ/b energy efficiency and delivers 500 kb/s data using the medical implant communication service frequency band (402–405 MHz). It consumes a measured peak power of 200 µW from a 1.2 V supply while occupying an active area of 0.0016 mm2 in a 130 nm technology. A modified pulse position modulation technique called saturated amplified signal is proposed and implemented, which can reduce the overall and per bit transferred power consumption of the transmitter while reducing the complexity of the transmitter architectures, and hence potentially shrinking the size of the implemented circuitry. The design is capable of being fully integrated on single-chip solutions for surgically implanted bionic systems, wearable devices and neural embedded systems.
机译:提出了一种用于嵌入式仿生系统的超低功耗无线发射器,该发射器可实现40 pJ / b的能量效率,并使用医疗植入物通信服务频段(402–405 MHz)传输500 kb / s的数据。它在1.2 V电源下消耗的测得峰值功率为200 µW,而在130 nm技术中则占据0.0016 mm 2 的有效面积。提出并实现了一种被称为饱和放大信号的改进的脉冲位置调制技术,该技术可以减少发射机的整体和每位传输的功率消耗,同时降低发射机架构的复杂性,从而有可能缩小所实现电路的尺寸。该设计能够完全集成到用于外科植入仿生系统,可穿戴设备和神经嵌入式系统的单芯片解决方案上。

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