VORRICHTUNG FÜR DATENSPEICHERUNG

摘要

Devices (90) are provided in accordance with this invention which utilise capacitive coupling of a passive object (60) to the device (90) to sense the object's position. The devices (90) are comprised of a plurality of electrode strips (130) arranged in two sets of parallel strips with the strips of one set crossing over the strips of the other set. Control means selects individual strips of each set and then analyses a change in capacitive coupling in order to determine the position of the object.