Importance

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Abstract

An input device for providing X and Y coordinate analog input values and an associated function selection to a computer. There is a support plate and a multiposition function selection switch having an output indicating the position thereof. There is also selector apparatus carried by the support plate and operably connected for moving the function selection switch between its positions. There are coordinate generators for generating X and Y coordinate analog values at outputs thereof and activator apparatus carried in combination with the selector apparatus and operably connected to the coordinate generators for changing the X and Y analog values being output. The selector apparatus may comprise an annular member disposed parallel to the plane of the support plate with the activator apparatus disposed within the annular member. The function selection switch is a rotatable switch and the annular member is rotatable about a perpendicular axis to move the function selection switch between its positions. The preferred activator is a joystick member pivotal about a point adjacent the plane in which the annular member is disposed and also rotatable about a longitudinal axis thereof and operably connected to move the function selection switch between its positions when rotated. The preferred rotatable switch is a switch capable of indicating an infinite number of positions wherein a pair of switches actuated by a cam member provide direction and positional stepping information to associated logic.

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First Claim