Magnetic recording medium and method of determining whether...

Details Magnetic recording medium and method of determining whether... Magnetic recording medium and method of determining whether...

G - Physics

06

K

352/57

G06K 19/00 (2006.01) G06K 7/08 (2006.01) G06K 19/12 (2006.01) G07F 7/12 (2006.01)

Patent

CA 1325849

ABSTRACT OF THE DISCLOSURE: A magnetic recording medium includes a truth determining code for determining whether the medium is true or false. The truth determining code is indicated by a magnetic polarity at at least an edge of the medium. A method of determining whether the medium is true or false comprises the steps of detecting a magnetic polarity at an edge of the magnetic recording medium, and collating a combination of the magnetic polarity with a proper combination of the magnetic polarity.

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