Patent ID: 9591968
Date: 2017-03-14
CPC Classifications: A61B,G01J,G01K,G02B,G06K,G06T,G08B,G08C,G16H,H04B,H04L,H04N,H04W

Claim:
1. A non-touch thermometer configured to estimate a body core temperature, the non-touch thermometer comprising: a microprocessor; a wireless communication subsystem that is operably coupled to the microprocessor and that is operable to transmit a representation of an estimated body core temperature; a battery operably coupled to the microprocessor; and a digital infrared (IR) sensor operably coupled to the microprocessor, the digital IR sensor having only digital readout ports and comprising a low noise amplifier, an analog-to-digital converter, a digital signal processor, and a pulse width modulator (PWM), the digital readout ports operable to transmit to the microprocessor a digital signal that is representative of an IR signal, acquired from a forehead of a user, that is detected by the digital IR sensor, wherein the digital IR sensor is configured with no need for recalibration after an initial factory calibration with an emissivity range of 0.1 to 1.0, wherein the microprocessor is operable to receive from the digital readout ports the digital signal that is representative of the IR signal of the forehead and is further configured to estimate the body core temperature from the forehead by using the PWM in a temperature range of −20° C. to 120° C. and generating the estimated body core temperature with an output resolution of about 0.14° C., wherein the body core temperature is estimated by the microprocessor by correlating the digital signal outputted by the PWM that is representative of the IR signal from the forehead with a table that correlates forehead temperature to body-core-temperature.