Magnetic tag and method for reading information store therein

摘要

A magnetic information-carrying tag is presented. The tag comprises a pair of spaced magnetic biasing elements magnetizable to create a magnetic field having a gradient within the space between the magnetic biasing elements, and an array of elongated magnetically soft elements accommodated in a spaced-apart substantially parallel relationship in the space between the magnetic biasing elements and defining a pattern indicative of the information carried in the tag.