Inventor
WONG CHAU-WAI
US12 patents
⚠️ This page may combine multiple inventors who share the name “WONG CHAU-WAI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ORIGIN WIRELESS INC
6 patentsUS10742475B2Aug 11, 2020
Method, apparatus, and system for object tracking sensing using broadcasting
ORIGIN WIRELESS INC22 citations94
US10270642B2Apr 23, 2019
Method, apparatus, and system for object tracking and navigation
ORIGIN WIRELESS INC40 citations94
US10735298B2Aug 4, 2020
Method, apparatus, server and system for vital sign detection and monitoring
ORIGIN WIRELESS INC16 citations85
US10374863B2Aug 6, 2019
Apparatus, systems and methods for event recognition based on a wireless signal
ORIGIN WIRELESS INC15 citations85
US10495725B2Dec 3, 2019
Method, apparatus, server and system for real-time vital sign detection and monitoring
ORIGIN WIRELESS INC11 citations83
US10397039B2Aug 27, 2019
Apparatus, systems and methods for fall-down detection based on a wireless signal
ORIGIN WIRELESS INC12 citations83
UNIV MARYLAND
6 patentsUS12343154B2Jul 1, 2025
Electrocardiogram waveform reconstruction from photoplethysmogram
UNIV MARYLAND0 citations62
US10726256B2Jul 28, 2020
Counterfeit detection scheme using paper surfaces and mobile cameras
UNIV MARYLAND1 citations62
US12245845B2Mar 11, 2025
System and method for heart rate measurement using facial video
UNIV MARYLAND1 citations60
US12229653B2Feb 18, 2025
Methods and apparatuses for implementing adaptive multi-trace carving to track signal traces
UNIV MARYLAND0 citations51
US12582325B2Mar 24, 2026
Contactless image-based blood oxygen estimation
UNIV MARYLAND0 citations47
US11501430B2Nov 15, 2022
Heart rate measurement using video
UNIV MARYLAND0 citations43