Bio-optical measuring apparatus
AssigneeSony Corporation
InventorsAtsushi ITO, Tomoya IKUTA
Life of this patent
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Abstract
A bio-optical measuring apparatus according to an embodiment of the present disclosure includes a light source that emits coherent light; and three or more optical receivers that receive reflected light from a living body, of light outputted from the light source toward the living body. The bio-optical measuring apparatus further includes a signal processing unit that obtains a low-noise signal by performing averaging processing based on detection signals outputted from the respective optical receivers in response to reception of the reflected light.
Claims20
A bio-optical measuring apparatus comprising:
- a light source that emits coherent light;
- three or more optical receivers that receive reflected light from a living body, of light outputted from the light source toward the living body;
- and
- a signal processing unit that obtains a low-noise signal, by performing averaging processing based on detection signals outputted from the respective optical receivers in response to reception of the reflected light.
A bio-optical measuring apparatus comprising:
- a light source that emits coherent light;
- two or more first optical receivers that receive first reflected light from a living body, of light outputted from the light source toward the living body;
- a reflective plate that reflects the light outputted from the light source;
- a second optical receiver that receives second reflected light reflected by the reflective plate, of the light outputted from the light source;
- and
- a signal processing unit that obtains a low-noise signal by performing averaging processing based on first detection signals and a second detection signal, the first detection signals being outputted from the respective first optical receivers in response to reception of the first reflected light, the second detection signal being outputted from the second optical receiver in response to reception of the second reflected light.
A bio-optical measuring apparatus comprising:
- a light source that emits coherent light;
- two or more first optical receivers that receive reflected light from a living body, of light outputted from the light source toward the living body;
- a light-shielding plate that blocks transmission of the light outputted from the light source;
- a second optical receiver into which entry of light from the light source is blocked by the light-shielding plate;
- and
- a signal processing unit that obtains a low-noise signal by performing averaging processing based on first detection signals and a second detection signal, the first detection signals being outputted from the respective first optical receivers in response to reception of the reflected light, the second detection signal being outputted from the second optical receiver.
A bio-optical measuring apparatus comprising:
- a light source that emits coherent light;
- two or more optical receivers that receive reflected light from a living body, of light outputted from the light source toward the living body;
- and
- a signal processing unit that obtains a low-noise signal by performing averaging processing based on detection signals and a statistical signal, the detection signals being outputted from the respective optical receivers in response to reception of the reflected light, the statistical signal being obtained by performing statistical processing using the respective detection signals.
Dependencies are inferred from the claim text.