Patent ID: 8452382

Claim:
An apparatus to determine a body temperature from a carotid source point, the apparatus comprising: a housing; a non-contact electromagnetic sensor operably mounted to the housing, the non-contact electromagnetic sensor being operable to receive electromagnetic energy from the carotid source point of a subject and operable to generate a numerical representation of the electromagnetic energy of the carotid source point; a printed circuit board mounted in the housing, electrically coupled to the non-contact electromagnetic sensor and operable to determine the body temperature of the subject from the numerical representation of the electromagnetic energy of the carotid source point, wherein determining the body temperature of the subject further comprises: calculating the body temperature as f stb (T surface temp +f ntc (T ntc ))+F4 body , where f stb is a representation of a surface of the body, where T surface temp is the numerical representation of the electromagnetic energy of the carotid source point, where f ntc is mathematical formula of an ambient temperature reading, where T ntc is the ambient air temperature reading, where F4 body is a calibration difference, f ntc (T ntc ) is a bias in consideration of the temperature sensing mode; and a button operably coupled to the printed circuit board.