RF-BASED MICROMOTION TRACKING FOR GESTURE TRACKING AND RECOGNITION
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- GOOGLE LLC
- Filing Date
- 2016-04-29
- Publication Date
- 2026-06-17
AI Technical Summary
Conventional radar systems struggle to accurately track millimeter-scale hand motions due to hardware-constrained resolution, leading to large, costly, or complex systems that are computationally intensive and ineffective for real-time gesture recognition on small-screen computing devices.
RF-based micro-motion tracking techniques using a simple radar system with a single radar-emitting element and antenna enable fine resolution by extracting relative dynamics from radar signals, determining micro-motions through Doppler frequency analysis and phase unwrapping, allowing for millimeter-scale gesture recognition with low computational resources.
Enables accurate tracking and recognition of fine hand gestures with reduced complexity and cost, facilitating real-time control on resource-limited devices such as smartphones and wearables, with robustness to noise and clutter.