Apparatus for preventing using a device in an improper manner such as from too short a distance or for too much time

摘要

An electronic apparatus with a CPU, a distance sensor and interfaces is attached to a host device with one or more screens. When a user uses the HD in an improper way such as too close or for excessive time, the apparatus will alert the user in a progressive way, and turn off the host device if the user does not correct his action. The apparatus can work with different host devices including TV, PC, video game console, handheld game console by means of remote control or via host devices' interfaces.