METHOD AND APPARATUS FOR TOUCHLESS INPUT TO AN INTERACTIVE USER DEVICE

摘要

A plurality of light sources is mounted on a housing of an interactive user device. The sources are spaced from each other in a defined spatial relationship, for example in a linear configuration. At least one light sensor is also positioned at the surface of the housing. The light sensor senses light that is reflected from an object placed by the user, such as the user's finger, within an area of the light generated by the light sources. A processor in the user device can recognize the sensed reflected light as a user input command correlated with a predefined operation and respond accordingly to implement the operation.