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ISSCC 2023Session 32 · INTELLIGENT BIOMEDICAL CIRCUITS AND SYSTEMSMedical & Bio

A 384-Channel Online-Spike-Sorting IC Using Unsupervised Geo-OSort Clustering and Achieving 0.0013mm2/Ch and 1.78µW/Ch

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📋 论文概要

该论文提出了一款384通道的在线尖峰分类(OSS)集成电路,采用无监督Geo-OSort聚类算法,实现了低复杂度、硬件高效的片上处理,解决了高密度神经记录系统中数据传输带宽和实时闭环应用的瓶颈。

💡 主要创新点

核心指标
0.0013 mm²/ch, 1.78 µW/ch, 384 channels
重要性
发表年份
ISSCC 2023

🏷 关键词

在线尖峰分类无监督聚类神经记录芯片低功耗硬件高效

📄 原文摘要

neural-recording devices get denser and generate more data [1], on-chip and online neural-signal processing becomes crucial to reduce the data-transmission power and enable real-time closed-loop applications with minimum latency. Spike sorting (SS) is an important data-reduction technique that allows the classification of extracellularly recorded spikes into clusters representing the neuron sources. SS requires computationally intensive algorithms usually implemented offline in software [2]. However, to enable on-chip and online SS (OSS), a low-complexity and hardwareefficient algorithm is required to achieve minimal area, energy and latency, while maintaining comparable accuracy. Although several multi-channel OSS chips have been

👥 作者与机构

Yingping Chen1,2, Bernardo Tacca1, Yunzhu Chen1, Dwaipayan Biswas1,

Georges Gielen1,3, Francky Catthoor1,3, Marian Verhelst1,3, Carolina Mora Lopez1 imec, Leuven, Belgium Fudan University, Shanghai, China 3 KU Leuven, Leuven, Belgium 1 2 As

分类:Medical & Bio · 年份:ISSCC 2023