US 12,446,833 B2
Method for predicting failure of bio-information estimation and apparatus for estimating bio-information
Seung Keun Yoon, Seoul (KR); Ui Kun Kwon, Hwaseong-si (KR); and Dae Geun Jang, Yongin-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jul. 2, 2021, as Appl. No. 17/366,931.
Claims priority of application No. 10-2020-0107742 (KR), filed on Aug. 26, 2020; and application No. 10-2021-0013962 (KR), filed on Feb. 1, 2021.
Prior Publication US 2022/0061770 A1, Mar. 3, 2022
Int. Cl. A61B 5/024 (2006.01); A61B 5/00 (2006.01); A61B 5/0205 (2006.01); A61B 5/021 (2006.01); A61B 5/0535 (2021.01); A61B 5/11 (2006.01); A61B 5/318 (2021.01); A61B 5/389 (2021.01)
CPC A61B 5/7221 (2013.01) [A61B 5/0205 (2013.01); A61B 5/021 (2013.01); A61B 5/024 (2013.01); A61B 5/02416 (2013.01); A61B 5/0535 (2013.01); A61B 5/1102 (2013.01); A61B 5/318 (2021.01); A61B 5/389 (2021.01)] 26 Claims
OG exemplary drawing
 
1. A method for predicting failure of bio-information estimation, the method comprising:
measuring, by a sensor and from a start time, a bio-signal comprising pulses corresponding to a heart rate;
continuously inputting, to a processor, the bio-signal in real time;
executing, by the processor, a bio-information estimation algorithm for estimating bio-information based on the input bio-signal; and
executing, by the processor, a failure prediction algorithm for predicting a failure of bio-information estimation until the failure prediction algorithm predicts bio-information estimation will fail or a current time reaches a preset time limit after the start time, the failure prediction algorithm comprising:
obtaining failure prediction indicators from the bio-signal input until the current time, the failure prediction indicators comprising at least one of a current number of pulses of the bio-signal until the current time, a current signal quality of the bio-signal until the current time, a maximum number of pulses of the bio-signal that are predicted to be measured until the preset time limit, and a maximum signal quality of the bio-signal that is predicted to be measured until the preset time limit, wherein the obtaining the failure prediction indicators comprises predicting a number of pulses during a remaining time period from the current time until the preset time limit, and obtaining the maximum number of pulses based on the predicted number of pulses and the current number of pulses; and
predicting whether the bio-information estimation will fail based on the failure prediction indicators; and
in response to the bio-information estimation being predicted to fail, ending, by the processor, the bio-information estimation.