Human Activity Recognition SoC for AR/VR with Integrated Neural Sensing, AI Classifier and Chained Infrared Communication for Multi-chip Collaboration

This paper presents a distributed multi-chip human activity recognition system for Virtual Reality (VR) and Augmented Reality (AR) applications. A comprehensive solution is delivered including AI core for classification, analog sensing for neural activity detection and infrared data communication for multi-chip collaboration. A $65\mathrm{~nm}$ test chip is fabricated and distributed across the body area to demonstrate the low power, low latency, and camera-free features of the target applications.