Patent ID: 11864864
Assignee: PIXART IMAGING INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method for performing a registration process in a wearable device, comprising:
activating a light source of the wearable device to emit detection light, wherein the detection light includes different light rays corresponding to different wavelengths and the detection light is adjusted to cover different wavelength ranges so as to emit at least a first light ray and a second light ray, and the first light ray is determined as a specific light ray when the first light ray causes a larger light intensity sensed by the light sensor than the second light ray;
calculating a light intensity sensed by a light sensor that is configured to sense the detection light reflected by or passing through an object; and
generating a registration value that serves as a threshold to detect whether or not the wearable device is properly worn by a person based on the light intensity, wherein the registration value is obtained when the specific light ray is emitted to the object and is determined based on the light intensity sensed when the detection light is emitted in a specific wavelength range.