Method and apparatus for generating images of magnetic...

Details Method and apparatus for generating images of magnetic... Method and apparatus for generating images of magnetic...

2006-08-15

2006-08-15

Frech, Karl D. (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C235S450000, C235S493000

Reexamination Certificate

active

07090130

ABSTRACT:
Apparatus and Methods for imaging magnetic fields and for using images of magnetic fields in the authentication of magnetic stripe cards or documents are disclosed. The systems described provide an increased tolerance for misalignments of magnetic reading heads. One preferred embodiment of the invention includes sensing circuitry for sensing an image of the magnetic field using an array of magnetic reading heads and sampling circuitry connected to the sensing circuitry.

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patent: 6445808 (2002-09-01), Lile et al.
International Search Report for PCT/US02/32485, application filed Oct. 9, 2002, date of mailing of International Search Report: Mar. 3, 2003 (3 pages).

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