Biometric State Detection Using Pulse and Acceleration Sensors

The patent combines pulse rate measurement and acceleration measurement into a unified state determination system. The measurement apparatus integrates both sensors and uses their combined data to accurately differentiate between excited and exercising states, resolving the contradiction by merging multiple measurement functions into one system.

The measurement apparatus is designed with multi-functionality, serving both as a pulse rate monitor and an acceleration sensor. This universal device performs multiple functions (measuring both physiological and motion data) to enable accurate state differentiation without requiring separate specialized devices.

The system extracts and stores only the essential information needed for state determination - specifically storing data points where transitions between states occur (excited/exercising boundaries). By taking out only the critical data points rather than storing all continuous measurements, the system maintains data completeness for state analysis while significantly reducing storage requirements and power consumption.

Instead of storing all measurement data continuously, the system applies partial action by storing only the necessary portions - the specific data points that indicate state transitions. This selective storage approach provides sufficient information for determining user states without the excessive energy consumption and storage burden of continuous data retention.