Apparatus and method for estimating bio-information
AssigneeSamsung Electronics Co., Ltd.
InventorsChang Soon Park, Ui Kun Kwon, Seung Keun Yoon, Dae Geun Jang
Life of this patent
Estimating the term…
Abstract
An apparatus for estimating bio-information may include a sensor configured to obtain a bio-signal from an object, and a processor configured to obtain a second-order differential signal of the bio-signal, and extract a progressive wave component from the bio-signal using, based on a first local minimum point of the second-order differential signal being stable, the first local minimum point of the second-order differential signal, or extract the progressive wave component from the bio-signal using, based on the first local minimum point of the second-order differential signal being unstable, a maximum amplitude point in a systolic portion of the bio-signal.
Claims20
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.
A method of estimating bio-information, the method comprising:
- obtaining a bio-signal from an object;
- obtaining a second-order differential signal of the bio-signal;
- determining whether a first local minimum point of the second-order differential signal is stable or unstable;
- based on determining that the first local minimum point of the second-order differential signal is stable, extracting a progressive wave component 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, extracting the progressive wave component from the bio-signal using a maximum amplitude point in a systolic portion of the bio-signal;
- determining 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
- directing an output interface to provide the estimated bio-information to the user so as to monitor the actual health condition.
Dependencies are inferred from the claim text.