Wearable Surface Biopotential Sensing for Reaction Timing

The patent replaces traditional mechanical/electronic reaction time testing systems with a biopotential-based detection system. Instead of using conventional buttons, touchscreens, or mechanical switches that introduce noise and delay, the system detects physiological biopotential signals (such as EMG or ECG) directly from the user's body to determine reaction time, thereby eliminating the noise and delay inherent in mechanical interaction systems

The patent introduces biopotential signals as an intermediary between the stimulus and the response measurement. Rather than directly measuring the mechanical or electrical response time through noisy channels, the system uses biopotential signals generated by the user's physiological response as a clean intermediary indicator of reaction time, which can be detected with high precision and minimal noise

The patent extracts and isolates the specific biopotential signal components related to muscle contraction or cardiac activity from the complex background of bodily electrical signals. By using differential amplification and signal filtering techniques, the system extracts the relevant physiological signals (such as EMG or ECG waves) that indicate reaction time, separating them from other electrical noise and irrelevant biological signals

The patent implements feedback mechanisms where the detected biopotential signals are continuously monitored and processed to adjust detection parameters in real-time. The system uses the incoming biopotential data to refine its measurement window, adjust amplification levels, and filter out artifacts, creating a closed-loop system that improves measurement accuracy through continuous feedback from the physiological signals themselves