Patent ID: 11948043
Assignee: APPLE INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. A method comprising:
at a processor:
detecting an attachment of a transparent surface to an electronic device, wherein detecting the attachment comprises detecting that the transparent surface is mounted to the electronic device;
based on detecting the attachment, obtaining image data from an image sensor of an electronic device, the image data corresponding to a transparent surface attached to the electronic device;
identifying a code in the image data, wherein the code is detectable on the transparent surface by the image sensor without interfering with a function of the electronic device involving the transparent surface;
periodically detecting the code, wherein the code is generated using active illumination, when eye tracking or blink detection is not being performed by the electronic device or the electronic device is not in use, and
providing content at the device based on the identified code, wherein the content is viewable through the transparent surface.