Portable terminal and method for the identification of articles

摘要

A portable terminal having an integrated circuit, a data transceiver, and a magnetic element. The integrated circuit stores data and/or effects operations. The data transceiver transmits and receives data respectively to and from external terminals. The magnetic element, which is comprised of a soft magnetic material, undergoes abrupt magnetization reversal when applied with an external alternating magnetic field, and outputs an inherent signal as a security signal. <IMAGE>