公开(公告)号：HK1249386A1

公开(公告)日：2018-11-02

申请号：HK18109027

申请日：2018-07-11

Applicant: NOKIA TECHNOLOGIES OY

Inventor： BLOMQVIST KIM ,  JALKANEN JUKKA

IPC: A61B20060101 ,  G01N20060101

公开(公告)号：ZA201707884B

公开(公告)日：2019-09-25

申请号：ZA201707884

申请日：2017-11-21

Applicant: NOKIA TECHNOLOGIES OY

Inventor： BLOMQVIST KIM ,  JALKANEN JUKKA

Abstract: A sensor comprising: a first light detector and a second light detector configured to concurrently detect light, and an optical blocking filter. The first light detector is configured to detect light that enters the sensor to produce a first detected signal, the optical blocking filter is configured to filter the light that enters the sensor to produce filtered light, and the second light detector is configured to detect the filtered light to produce a second detected signal. There is also a subtraction element configured to subtract the second detected signal from the first detected signal to produce a subtracted signal, wherein the subtracted signal is a sensor signal usable for producing a physiological measurement result.