| 摘要 |
Apparatus (20) and methods (600, 700, 800) for sensing proximity of an object (22) to an electronic device (10) are disclosed. The apparatus (20) may comprise an infrared source (30) configured to emit electromagnetic energy in the infrared frequency range (IR energy 24) for reflection by an object (22) in proximity to the electronic device (10). The apparatus (20) may also comprise an image sensor (32) configured to: capture digital images in the visible light spectrum; detect the reflected IR energy (26); and generate a signal useful in controlling a function of the electronic device (10), such as the activation of a touch-sensitive display (14), based on the reflected IR energy (26) detected. |
