Patent ID: 6304246
Filing Date: 2001-10-16
Classification: G06F

Abstract:
An input device for shifting a marker on a monitor screen, comprising:a completely closed, hermetically sealed and sterilizeable housing containing an electrical shield;at least one sensor means for detecting movement of said housing and for generating a sensor means output signal dependent on the movement;an evaluation unit supplied with said sensor means output signal which evaluates said sensor means output signal and generates a control signal for use in shifting a position of a marker on a monitor screen;a conversion unit supplied with said control signal for converting said control signal into a modulated signal, said sensor means, said evaluation unit and said conversion unit being disposed completely within said shield; andtransmitting means for broadcasting said modulated signal by radiating said modulated signal into the environment to a location remote from said transmitting means; anda non-magnetic energy source in said housing, connected to said evaluation unit, said conversion unit and said transmitting means, for supplying power to each of said evaluation unit, said conversion unit and said transmitting means, said non-magnetic energy source being selected from the group consisting of a non-magnetic battery, a non-magnetic accumulator and a non-magnetic electrolytic capacitor.