Patent ID: 11911152
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. An apparatus for estimating a concentration of an analyte, the apparatus comprising:
an optical sensor configured to emit light toward an object and receive light reflected from the object; and
a processor configured to:
obtain a ratio of an absorption coefficient to a scattering coefficient based on the received light,
obtain a first absorption spectrum of the object based on the obtained ratio,
obtain a second absorption spectrum by eliminating a scattering correction spectrum from the first absorption spectrum, the scattering correction spectrum corresponding to a nonlinear change in the scattering coefficient according to a wavelength of the emitted light, and
estimate a concentration of an analyte based on the second absorption spectrum,
wherein the scattering correction spectrum is expressed as a function representing a change in a length of a light path according to the wavelength of the emitted light, and
wherein the processor is further configured to obtain the second absorption spectrum by using a scattering correction model that is based on the function.