Navigation tool
AssigneeIdex Asa
InventorsStig Mathiassen, Svein Mathiassen
Life of this patent
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Abstract
This invention relates to a navigation tool for connecting to a display device, comprising at least two sensor elements having known positions relative to each other, each sensor element being coupled to detector means for recording a change in a predetermined parametre and timing means for determining the time of change at each sensor element and calculating means for calculating the direction and speed of the recorded changes based on the relative positions of the sensor elements and the duration between the recorded changes.
Claims8
Navigation tool for connecting to a display device, characterized in that it comprises at least two sensor elements having known positions relative to each other, each sensor element being coupled to detector means for recording a change in a predetermined parametre and timing means for determining the time of change at each sensor element and calculating means for calulating the direction and speed of the recorded changes based on the relative positions of the sensor elements and the duration between the recorded changes.
Dependencies are inferred from the claim text.