US 11,701,009 B2
Apparatus and method for measuring bio-information
Jeong Eun Hwang, Suwon-si (KR); Byung Hoon Ko, Hwaseong-si (KR); Chang Mok Choi, Suwon-si (KR); Sang Yun Park, Hwaseong-si (KR); and Jong Wook Lee, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jan. 13, 2020, as Appl. No. 16/740,591.
Claims priority of application No. 10-2019-0030174 (KR), filed on Mar. 15, 2019; and application No. 10-2019-0101838 (KR), filed on Aug. 20, 2019.
Prior Publication US 2020/0288995 A1, Sep. 17, 2020
Int. Cl. A61B 5/1455 (2006.01); A61B 5/021 (2006.01); A61B 5/02 (2006.01); A61B 5/024 (2006.01); A61B 5/026 (2006.01); A61B 5/145 (2006.01); A61B 5/00 (2006.01)
CPC A61B 5/02108 (2013.01) [A61B 5/02007 (2013.01); A61B 5/0261 (2013.01); A61B 5/02427 (2013.01); A61B 5/1455 (2013.01); A61B 5/14532 (2013.01); A61B 5/681 (2013.01); A61B 5/6843 (2013.01); A61B 5/6897 (2013.01); A61B 5/6898 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus for measuring bio-information, the apparatus comprising:
a pulse wave sensor comprising at least one pair of light emitters which are disposed apart from each other and a light receiver disposed between the at least one pair of light emitters, the pulse wave sensor being configured to measure a plurality of pulse wave signals from a subject by using the light receiver and the at least one pair of light emitters;
a force sensor configured to measure a contact force that is applied to the pulse wave sensor by the subject;
a memory configured to store size information of a mathematical area of a contact surface of the pulse wave sensor, wherein an entire surface of the contact surface is configured to be in contact with the subject; and
a processor configured to:
retrieve the size information of the mathematical area of the contact surface of the pulse wave sensor from the memory;
generate an integrated pulse wave signal by integrating the plurality of pulse wave signals;
determine contact pressure based on the contact force and the mathematical area of the contact surface of the pulse wave sensor; and
estimate bio-information of the subject based on the integrated pulse wave signal and the contact pressure.