DEVICE FOR IDENTIFICATION AND METHOD FOR SCANNING THE SAME Russian patent published in 2007 - IPC G06K19/06 G06K7/08 G01V15/00 

FIELD: information carriers, in particular, universal magnetic identification device.

SUBSTANCE: identification device contains code elements positioned on substrate with different coercive intensity. Each code element is made of magnetic-soft material, to which through non-magnetic insert connected magnetically are grouped together, having similar shape and dimensions, of same domain during magnetization in direction of axis of light magnetization, discontinuous elements, which possess greater coercive intensity than magnetic-soft material. Method for scanning device includes serial magnetization by means of external field of elements with varying coercive intensity, registration of electromagnetic impulses occurring during that and their processing, while for magnetization alternating-sign magnetic fields are used with varying speed of their change in time.

EFFECT: amplification of signal used during scanning, increased information capacity and expanded area of possible use of device for identification due to possible spatial distribution of device and means for its scanning, and also increased reliability of its activation, improved manufacturability and decreased manufacturing costs.

2 cl, 16 dwg