CPC A61B 5/02108 (2013.01) [A61B 5/02007 (2013.01); A61B 5/0261 (2013.01); A61B 5/02427 (2013.01); A61B 5/1455 (2013.01); A61B 5/14532 (2013.01); A61B 5/681 (2013.01); A61B 5/6843 (2013.01); A61B 5/6897 (2013.01); A61B 5/6898 (2013.01)] | 16 Claims |
1. An apparatus for measuring bio-information, the apparatus comprising:
a pulse wave sensor comprising at least one pair of light emitters which are disposed apart from each other and a light receiver disposed between the at least one pair of light emitters, the pulse wave sensor being configured to measure a plurality of pulse wave signals from a subject by using the light receiver and the at least one pair of light emitters;
a force sensor configured to measure a contact force that is applied to the pulse wave sensor by the subject;
a memory configured to store size information of a mathematical area of a contact surface of the pulse wave sensor, wherein an entire surface of the contact surface is configured to be in contact with the subject; and
a processor configured to:
retrieve the size information of the mathematical area of the contact surface of the pulse wave sensor from the memory;
generate an integrated pulse wave signal by integrating the plurality of pulse wave signals;
determine contact pressure based on the contact force and the mathematical area of the contact surface of the pulse wave sensor; and
estimate bio-information of the subject based on the integrated pulse wave signal and the contact pressure.
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