US 11,717,171 B2
Apparatus and method for estimating body temperature, and healthcare device
Sung Hyun Nam, Yongin-si (KR); So Young Lee, Daejeon (KR); and Ka Ram Choi, Hwaseong-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Mar. 30, 2021, as Appl. No. 17/217,481.
Claims priority of application No. 10-2020-0157717 (KR), filed on Nov. 23, 2020.
Prior Publication US 2022/0160239 A1, May 26, 2022
Int. Cl. A61B 5/01 (2006.01); A61B 5/00 (2006.01); A61B 5/021 (2006.01); A61B 5/0537 (2021.01); A61B 5/145 (2006.01); A61B 5/16 (2006.01)
CPC A61B 5/01 (2013.01) [A61B 5/0075 (2013.01); A61B 5/021 (2013.01); A61B 5/0537 (2013.01); A61B 5/14532 (2013.01); A61B 5/165 (2013.01); A61B 5/442 (2013.01); A61B 5/4872 (2013.01); A61B 5/681 (2013.01); A61B 5/6803 (2013.01); A61B 5/6833 (2013.01); A61B 5/6898 (2013.01); A61B 2562/0271 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus for estimating body temperature, the apparatus comprising:
a sensor comprising:
a detector configured to detect light; and
at least two light sources that are spaced apart from the detector by different distances, and are configured to emit the light to the detector through an object, to obtain spectra through a plurality of light paths between the at least two light sources and the detector; and
a processor configured to:
determine temperature differences that minimize differences between the spectra of the plurality of light paths and a reference spectrum measured at a reference temperature, respectively;
obtain a temperature slope based on the temperature differences that minimize the differences between the spectra of the plurality of light paths and the reference spectrum; and
estimate the body temperature of the object based on the temperature slope.