Wearable device and method for performing registration process in the wearable device
AssigneePixart Imaging Inc.
InventorsChun-Chih Chen, Yung-Chang Lin, Ming-Hsuan Ku
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Abstract
A wearable device and a method for performing a registration process in the wearable device are provided. The wearable device includes a light source, a light sensor and a microcontroller that performs the method. In the method, the light source is activated to emit a detection light and the light sensor senses a reflected light. A light intensity of the reflected light is calculated. Specifically, an upper limit and a lower limit are referred to for detecting whether the wearable device is properly worn by a person. For example, since the wearable device can be worn on the person's wrist, the registration value is used to detect whether the wearable device is away from the wrist.
Claims16
A method for performing a registration process in a wearable device, comprising:
- activating a light source of the wearable device to emit a detection light;
- obtaining a light intensity sensed by a light sensor that is configured to sense the detection light reflected by or passing through an object, wherein the detection light is adjusted to emit at least a first combination of light rays and a second combination of light rays, and the first combination of light rays is determined as a specific light ray to be emitted to the object when the first combination of light rays causes a larger light intensity sensed by the light sensor than the second combination of light rays, wherein the object is skin of a specific portion of body of any one of persons having different skin conditions;
- in response to the light intensity, generating a registered high threshold and a registered low threshold proprietary to a person who wears the wearable device based on the person's skin condition, wherein the registered high threshold serves as an upper limit and the registered low threshold serves as a lower limit that are referred to for detecting whether or not the wearable device is worn by the person for able to perform a function at least relating to security based on the light intensity;
- wherein, when the wearable device is in operation, a sensed light intensity is generated and compared with both the registered high threshold and the registered low threshold so as to determine if the function at least relating to security executed in the wearable device is terminated.
A wearable device, comprising:
- a light source configured to emit a detection light;
- a light sensor configured to sense the detection light reflected from an object;
- a memory;
- and
- a microcontroller electrically connected with the light source, the light sensor and the memory, and performing a method for performing a registration process in the wearable device, the method including:
- activating the light source to emit the detection light, wherein the detection light is adjusted to emit at least a first combination of light rays and a second combination of light rays, and the first combination of light rays is determined as a specific light ray to be emitted to the object when the first combination of light rays causes a larger light intensity sensed by the light sensor than the second combination of light rays, wherein the object is skin of a specific portion of body of any one of persons having different skin conditions;
- obtaining a light intensity sensed by the light sensor;
- in response to the light intensity, generating a registered high threshold and a registered low threshold proprietary to a person who wears the wearable device based on the person's skin condition, wherein the registered high threshold serves as an upper limit and the registered low threshold serve s as a lower limit that are referred to for detecting whether the wearable device is worn by the person for able to perform a function at least relating to security based on the light intensity;
- and
- storing the registered high threshold and the registered low threshold in the memory;
- wherein, when the wearable device is in operation, a sensed light intensity is generated and compared with both the registered high threshold and the registered low threshold so as to determine if the function at least relating to security executed in the wearable device is terminated.
Dependencies are inferred from the claim text.