Patent ID: 11963772
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A  G  H  Y | IPC A  G

Claim 7:
8. A method used in a system comprising:
a light source;
a photodetector; and
electrical circuitry, the method including:
causing the light source to emit at least one pulsed light with which a user is illuminated;
causing the photodetector to detect internal scattering components included in at least one reflection pulsed light that returns from the user, the internal scattering components being diffused in a brain of the user;
causing the photodetector to detect surface reflection components included in the at least one reflection pulsed light, the surface reflection components being reflected by a surface of the user;
generating a first signal indicating an amount of change in brain blood flow of the user based on the internal scattering components; and
generating a second signal indicating an amount of change in facial blood flow of the user based on the surface reflection components.