Single-Point Temperature Sensor Calibration Circuit

The patent applies preliminary action by pre-computing the offset value that would exist at absolute zero temperature and storing it in a lookup table before actual operation. This allows the system to eliminate the need for physical heating to multiple temperature points during calibration, as the absolute zero reference point is established in advance through calculation rather than physical measurement.

The patent replaces the mechanical/physical heating system with a computational approach. Instead of physically heating the device to multiple temperature points using temperature-controlled chambers, the system uses computational methods to calculate and store reference values, substituting physical thermal processing with mathematical computation and data lookup.

The patent introduces an intermediary computational unit that processes the single temperature measurement and applies corrections based on pre-stored offset values and sensitivity factors. This computational intermediary bridges the gap between the simplified single-point measurement and the requirement for accurate temperature sensing across a wide range, compensating for DC offsets and device mismatches through mathematical correction rather than physical multi-point measurement.

The patent changes the operating parameters by measuring at a single temperature point rather than multiple points, and compensates for the resulting limitations by dynamically adjusting sensitivity factors and applying offset corrections. The system modifies the calibration approach from physical temperature variation to computational parameter adjustment, maintaining precision while improving speed.