Patent ID: 11890084
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An apparatus for estimating bio-information, the apparatus comprising:
a sensor configured to obtain a bio-signal from an object;
a processor; and
an output interface;
wherein the processor is configured to:
obtain a second-order differential signal of the bio-signal;
determine whether a first local minimum point of the second-order differential is stable or unstable;
based on determining that the first local minimum point of the second-order differential signal is stable, extract a progressive wave component from the bio-signal using the first local minimum point of the second-order differential signal,
based on determining that the first local minimum point of the second-order differential signal is unstable, extract the progressive wave component from the bio-signal using a maximum amplitude point in a systolic portion of the bio-signal;
determine the estimated bio-information based on the extracted progressive wave component, the estimated bio-information representing an actual health condition of a user having the object; and
direct the output interface to provide the estimated bio-information to the user so as to monitor the actual health condition.