Abstract: Devices having an inductive coil configured to be positioned proximate to an inductive coil in a secondary device (e.g., an implantable component) for the transfer of signals (e.g., power signals and/or data signals) there between. One or more of the inductive coils includes at least one concave portion formed into the shape/perimeter thereof.

Abstract: Aspects of the present disclosure are directed to identifying existence of oral diseases. In an embodiment, a light source operable to provide light in one of multiple of wavelength bands is provided. The light with the corresponding wavelength band of the multiple wavelength bands accentuates a corresponding feature indicative of a respective set of diseases. The light source may be further operated to generate a first light with a desired wavelength band to illuminate a target area in a mouth of a subject, and an image formed by the reflected light from the target area may be examined for the existence of an oral disease corresponding to the desired wavelength band.