Patent ID: 7978053

Claim:
An apparatus for managing information about an integrated circuit tag, comprising: an acquiring unit that acquires three-dimensional position coordinates of the integrated circuit tag located at a plurality of critical points each corresponding to a range of electric-wave output by an antenna of a reader/writer, from a controller that measures a three-dimensional position coordinate of the integrated circuit tag; a storing unit that stores the three-dimensional position coordinates acquired by the acquiring unit; an electric-wave outputting-range determination unit that creates an approximation surface based on the three-dimensional position coordinates in the storing unit, and compares the approximation surface and a three-dimensional position coordinate of an integrated circuit tag for locating, and determines whether the three-dimensional position coordinate of the integrated circuit tag for locating is within the approximation surface or not; a writing unit that writes the three-dimensional position coordinates in the storing unit into the integrated circuit tag; and a display unit that displays the integrated circuit tag for locating is within a tolerance range of electric-wave output by an antenna of a reader/writer when the three-dimensional position coordinate of the integrated circuit tag for locating is within the approximation surface, and displays the integrated circuit tag for locating is not within the tolerance range when the three-dimensional position coordinate of the integrated circuit tag for locating is not within the approximation surface.