Abstract: The disclosure is directed to illumination-based charging of one or more portable devices. According to an embodiment of the disclosure, an illumination-based charging pad includes a platform, a plurality of illumination sources, a plurality of photosensitive detectors, and a controller. The controller performs a scan by activating the illumination sources and detecting reflected illumination from an illuminated surface of at least one portable device disposed upon the platform. The controller determines a set of one or more illumination sources that are at least partially overlaid by the portable device based upon the detected illumination. The controller selects one or more illumination sources for charging the portable device at least partially based upon the set of one or more illumination sources determined to be overlaid by the portable device.

Abstract: A metal substrate with a slot therein forms a slot antenna, the slot having a major axis and a minor axis. A dielectric layer has a plurality of terminals disposed on or in the dielectric layer and the layer is attached on one surface of the substrate. The terminals of a non-linear device, such as a diode, are connected to corresponding terminals of the dielectric layer. The non-linear device is positioned proximate the slot and is substantially aligned with a minor axis of the slot. A transmission line feeds an RF signal to the non-linear device that in turn frequency multiplies the RF signal to an RF signal that is radiated by the slot antenna. The dielectric layer is positioned in the slot such that the radiated RF signal has a desired output power. A protective layer is applied to the other surface of the substrate to cover the slot.

Abstract: An electronic device comprising an image sensor, an orientation sensor, and a user interface, may be operable to capture photographs via the image sensor. Input to the user interface required for triggering a photo capture may depend on an orientation of the electronic device indicated by the orientation sensor. Input required to trigger a photo capture while the orientation sensor indicates a first orientation of the electronic device may be different than input required to trigger a photo capture while the orientation sensor indicates a second orientation of the electronic device.