A method for determining an orientation of an object includes determining a plurality of boundary values defining a predetermined range of movement of the object; dividing the range into position segments using the plurality of boundary values; moving a movable portion of the object to a current position;...http://www.google.fr/patents/US5353042?utm_source=gb-gplus-shareBrevet US5353042 - Method for determining an orientation of an object
Method for determining an orientation of an object
