Patent ID: 11864871
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 16:
17. An apparatus for estimating bio-information, the apparatus comprising:
a first device comprising an external light collector configured to collect external light, the first device being configured to:
measure a bio-signal of a user;
determine whether the external light is sufficient to measure the bio-signal;
control driving of an auxiliary light source based on the determination; and
transmit the measured bio-signal to a second device; and
the second device configured to receive the bio-signal from the first device and estimate the bio-information based on the received bio-signal,
wherein the first device is configured to extract a frequency band signal component by filtering the bio-signal measured using only the external light when the auxiliary light source is turned off at an early stage of measurement of the bio-signal, and determine whether the external light is sufficient to measure the bio-signal based on an amplitude of the extracted frequency component.