Adaptive light source driving optical system for integrated touch and hover

Abstract

An optical touch device includes: illumination sources; sensors corresponding to the illumination sources; a processor; and a memory, wherein the memory stores instructions that, when executed by the processor, cause the processor to: detect a plurality of hot spots by a first illumination process; receive information about the plurality of hot spots based on a second illumination process; compare the plurality of hot spots with the information to determine the presence or absence of a connection feature for each hot spot of the plurality of hot spots; and identify a hot spot as an intended gesture if the absence of a connection feature is determined or evaluate a hot spot based on additional information if the presence of a connection feature is determined, wherein the hot spot is rejected if a false result is returned based on the evaluation.

Dependencies are inferred from the claim text.