Qsecure, Inc.

Weidong Li

Edgar M Williams

David Pariseau

Kerry Dennis Brown

Joyce Thompson

A magnetic device that includes a magnetic stripe for recording a combination of dynamic and static magnetic data. The magnetic stripe includes at least two regions of material with substantially different coercivities. One region contains static information and the other can be re-written with dynamic information.

Stripline magnetic writing of dynamic magnetic data bits in surrounding regions of static magnetic data bits

A Q-Chip MEMS magnetic device comprises a thin-film electronic circuit for implantation in the Track-2 area of a magnetic stripe on the back of a credit card. The Q-Chip MEMS magnetic device periodically self-generates new sub-sets of magnetic data that are to be read in combination with other magnetic data that is permanently recorded in the surrounding surface of the magnetic stripe. A collocated battery and microcontroller provide operating power and new data for magnetic bit updates. A swipe sensor triggers such updates by sensing electrical contact with a legacy card reader. Several thin-film coils of wire are wound end-to-end around a common, flat, ferrous core. These are driven by the microcontroller. In one instance, such core comprises 'hard' magnetic material with a coercivity of 200-300 Oersteds. Magnetic data written from the corresponding adjacent coils will persist for later readings by a legacy card reader. In another instance, the core comprises 'soft' magnetic material with a coercivity of about one Oersted. A media stripe of &#x201c;hard&#x201d; magnetic film material overlays respective coils to receive magnetic data transfers. Magnetic data written from the corresponding adjacent coils will persist in the overlaying hard media for later readings by a legacy card reader. In a data input mode, the thin-film coils can be used as readers to provide updates and new programming to the microcontroller.

Growing community of inventors

Fremont, CA, United States of America

Weidong Li