Wearable electronic device
A consumer product that is a portable and, in some cases, a wearable electronic device. The wearable electronic device may have functionalities including: keeping time; monitoring a user's physiological signals and providing health-related information based on those signals; communicating with other electronic devices or services; visually depicting data on a display; gather data form one or more sensors that may be used to initiate, control, or modify operations of the device; determine a location of a touch on a surface of the device and/or an amount of force exerted on the device, and use either or both as input.
1. An electronic device, comprising:
a housing defining a first opening opposite to a second opening;
a band attached to the housing and configured to secure the electronic device to a user;
a display positioned in the first opening;
a ceramic cover disposed over the second opening and forming a portion of an exterior surface of the electronic device;
a biosensor module disposed within the second opening below the ceramic cover; and
a wireless charging receive coil aligned with the second opening and below the ceramic cover;
wherein:
the ceramic cover is configured to pass optical signals generated by the biosensor module; and
the ceramic cover is configured to pass wireless power from an external wireless charging device to the wireless charging receive coil.
2. The electronic device of claim 1 , wherein the biosensor module comprises:
a light source configured to emit light toward a region of skin of the user; and
a detector configured to receive light reflected from the region of skin.
3. The electronic device of claim 2 , wherein:
the ceramic cover defines a first opening to transmit the light from the light source; and
the ceramic cover defines a second opening to receive the light reflected from the region of skin.
4. The electronic device of claim 2 , wherein:
the light source and the detector are configured to measure changes in light absorption by the region of skin;
the electronic device is configured to compute a health metric using the measured change in light absorption; and
the display is configured to display information associated with the health metric.
5. The electronic device of claim 2 , wherein the light source and the detectors are configured to operate as a photoplethysmogram (PPG) sensor.
6. The electronic device of claim 1 , wherein:
the ceramic cover is a disk having a disk diameter that is greater than an opening diameter of the second opening; and
the ceramic cover forms a water-tight seal with the housing along a perimeter of the ceramic cover.
7. The electronic device of claim 1 , wherein:
the second opening has an opening diameter;
the wireless charging receive coil has a coil diameter that is less than the opening diameter; and
the wireless charging receive coil is configured to receive the wireless power through the second opening.
8. The electronic device of claim 1 , wherein:
the ceramic cover has a convex contoured shape that protrudes toward the user; and
the convex contoured shape facilitates alignment between the ceramic cover and a mating surface of the external wireless charging device.
9. A wearable electronic device, comprising:
a housing comprising a bottom portion defining an opening;
a biosensor module aligned with the opening;
a wireless charging receive coil positioned within the housing and aligned with the opening;
a battery operably coupled to the wireless charging receive coil; and
a cover disposed over the biosensor module; wherein:
the cover is configured to pass optical signals to and from the biosensor module; and
the cover is configured to pass wireless power to the wireless charging receive coil.
10. The wearable electronic device of claim 9 , wherein:
the housing is formed from a metal material; and
the cover is formed from a non-metal material.
11. The wearable electronic device of claim 9 , wherein:
the wireless charging receive coil has a coil diameter that is less than a diameter of the biosensor module; and
the wireless charging receive coil is configured to receive the wireless power through the biosensor module.
12. The wearable electronic device of claim 9 , wherein:
the cover is a disk having a convex shape that protrudes away from the housing; and
the convex shape is configured to facilitate alignment with a concave surface of an external inductive power transmitter dock.
13. The wearable electronic device of claim 12 , wherein:
the wearable electronic device is magnetically coupled to the external inductive power transmitter dock through the cover and the biosensor module.
14. The wearable electronic device of claim 9 , wherein:
the biosensor module includes an array of optical components; and
the cover includes an array of windows, each window aligned with a corresponding optical component of the array of optical components.
15. An electronic watch, comprising:
a housing defining an interior cavity and a bottom portion having an opening;
a band attached to the housing and configured to secure the electronic watch to a user;
a biosensor module positioned along the bottom portion of the housing and configured to transmit optical signals and receive reflected optical signals through the opening of the housing; and
a wireless charging receive coil positioned within the interior cavity and configured to receive wireless power through the opening of the housing.
16. The electronic watch of claim 15 , wherein:
the wireless charging receive coil is configured to receive power from an external inductive power transmitter dock; and
the electronic watch is configured to magnetically couple with the external inductive power transmitter dock.
17. The electronic watch of claim 15 , wherein:
the wireless charging receive coil is configured to receive power from an external inductive power transmitter dock;
the electronic watch defines a convex contoured surface along the bottom portion; and
the convex contoured surface is configured to facilitate alignment with a concave contoured surface of the external inductive power transmitter dock.
18. The electronic watch of claim 17 , wherein the convex contoured surface is configured to protrude toward a portion of skin of the user when the electronic watch is worn.
19. The electronic watch of claim 15 , wherein:
the electronic watch is configured to compute a health metric using the biosensor module; and
the health metric is one or more of: a heart rate, a respiration rate, a blood oxygenation level, a blood volume estimate, or blood pressure.
20. The electronic watch of claim 19 , wherein:
the electronic watch includes a display; and
the display is configured to display information associated with the health metric.