Patent ID: 7061429

Claim:
A device for determining the position and/or orientation of a creature ( 3 ) relative to an environment, said device comprising a locating member ( 4 ) connected to the creature, said locating member including a transducer ( 5 ) arranged to determine its position and/or orientation relative to the environment by receiving incident signals from at least three signal sources ( 9 ) in the environment, three of which have known positions relative to the environment, and by recording the relative incident directions of the signals received in relation to the transducer, and a means ( 8 ) by which a body part of the creature and the transducer are connected to each other so that the relative positions and/or orientations of the body part and the transducer are arranged to be within a limited interval, for determining the position and/or orientation of said body part of the creature by means of the information about the position and/or orientation of the transducer, characterized in that the transducer is provided with at least one phased-array for receiving said signals and recording the relative incident directions of the signals.