Hover detection technology, in which an image is captured from a camera while an illumination source is illuminating an area in front of a display surface and the image captured by the camera is analyzed to detect an object within an anticipated input region based on illumination of the illumination source. The closed-captioning content is included in a broadcast signal received by the set-top box. Once classified, the matching person’s name, or the matching object, image and associated meta-data is sent back to the user. It is thus possible to form the gate electrode having a vertical profile. The base angle mechanisms positions the first set of vehicle support assemblies in the low position and the second set of vehicle support assemblies in the high position and later swaps the positions. One or more asynchronous outputs at a circuit boundary is converted to an asynchronous output from the converted asynchronous circuit logic, such that the converted asynchronous output is operable to output updated data as soon as changed data is received from the converted asynchronous circuit logic in the asynchronous output.