Wearable device and wearing status detection method
AssigneeHuawei Technologies Co., Ltd.
InventorXuelian Liu
Life of this patent
Estimating the term…
Abstract
A wearable device includes a first optical transmitter configured to transmit first optical signals. One or more first optical sensors are configured to detect the first optical signals. A second optical transmitter, in the form of a vertical-cavity surface-emitting laser, is configured to transmit laser light. One or more second optical sensors are configured to detect the laser light transmitted by the second optical transmitter. One or more processors, connected to the first optical transmitter, the first optical sensors, the second optical transmitter, and the second optical sensors, and are configured to determine a wearing status of the wearable device based on optical signals detected by the first optical sensors and the second optical sensors.
Claims20
A wearable device, comprising:
- a first optical transmitter configured to transmit first optical signals;
- one or more first optical sensors configured to detect the first optical signals;
- a second optical transmitter, wherein the second optical transmitter is a vertical-cavity surface-emitting laser configured to transmit laser light, and wherein the second optical transmitter has a smaller field of view than the first optical transmitter;
- one or more second optical sensors configured to detect the laser light from the second optical transmitter;
- and
- one or more processors connected to the first optical transmitter, the one or more first optical sensors, the second optical transmitter, and the one or more second optical sensors are configured to determine and output a wearing status output of the wearable device based on a combination of the first optical signals detected by the first optical sensors and the smaller field of view of the laser light detected by the second optical sensors.
A method comprising:
- transmitting, by a first optical transmitter, first optical signals;
- transmitting, by a second optical transmitter, laser light, wherein the second optical transmitter is a vertical-cavity surface-emitting laser, wherein the second optical transmitter has a smaller field of view than the first optical transmitter;
- performing first detection, by one or more first optical sensors, of the first optical signals;
- performing second detection, by one or more second optical sensors, of reflected laser light transmitted by the second optical transmitter;
- and
- outputting, based on a combination of the first optical signals from the first detection and the smaller field of view of the laser light from the second detection, a wearing status output of a wearable device.
A computer program product, comprising computer-executable instructions for storage on a non-transitory computer-readable medium that, when executed by one or more processors, cause a wearable apparatus to:
- transmit at least one light;
- transmit laser light at a smaller field of view than the least one light;
- detect at least the one light to obtain detected light;
- detect laser light to obtain detected laser light;
- and
- output, based on a combination of the detected light and the detected laser light corresponding to the smaller field of view, a wearing status of the wearable apparatus.
Dependencies are inferred from the claim text.