Dual Processor Magnetic Field Correction for Wearables

The patent divides the processing system into two segments: a main processor that handles basic operations and a secondary processor with higher capability that performs statistical calculations for correction values. This segmentation allows the complex correction calculation to be handled by a dedicated high-performance component without requiring the entire device to have high processing capability, thus resolving the contradiction between measurement precision and device complexity

The patent introduces a secondary processor as an intermediary component that mediates between the simple main processor and the complex statistical calculation requirements. This intermediary handles the computationally intensive tasks of retrieving measurement values and calculating correction values, allowing the main processor to remain simple while still achieving high measurement precision through accurate correction

The patent implements periodic action by having the secondary processor activate only when correction value calculation is needed, rather than running constantly. The main processor manages power consumption by switching to the high-performance secondary processor only during correction calculation tasks, and the system periodically updates correction values based on accumulated measurement data, thus achieving high precision without continuous high power consumption

The patent creates a specialized copy of processing capability in the form of a secondary processor that is specifically designed for correction calculations. This secondary processor is activated only when needed for correction value determination, allowing the system to have high processing capability available on-demand without the penalty of continuously consuming high power, thus resolving the contradiction between measurement precision and energy usage

The patent implements self-service by enabling the system to automatically collect measurement data from various postures without requiring intentional user action. The main processor continuously or periodically retrieves measurement values from sensors, and the secondary processor automatically performs statistical calculations to determine correction values, allowing the device to self-correct magnetic field offsets using ambient data rather than requiring deliberate user posture changes

The patent ensures continuity of useful action by having the main processor continuously or periodically collect measurement data in the background without interruption. This continuous data accumulation allows the secondary processor to perform accurate statistical calculations when activated, maintaining high measurement precision while eliminating the need for users to perform discrete, intentional posture changes, thus improving ease of operation