IC card comprising a main device and an additional device

Details IC card comprising a main device and an additional device IC card comprising a main device and an additional device

2008-05-28

2011-10-25

Hess, Daniel (Department: 2876)

Registers

Records

Conductive

C235S493000, C340S010100, C340S010400, C340S010410, C340S010500

Reexamination Certificate

active

08042743

ABSTRACT:
The IC Card includes a main device having a microprocessor and a memory unit, and an I/O contact pad for a connection between the main device and a read write device, also referred to as a main interconnection. The IC card also includes additional device connectable to the main device via a secondary interconnection including the I/O contact pad, and a switch control for selectively switching between the main interconnection, for a transmission of data between the read write device and the main device, and the secondary interconnection, for a transmission of data between the main device and the additional device.

REFERENCES:
patent: 5929414 (1999-07-01), Saitoh
patent: 7163154 (2007-01-01), Palmade
patent: 7255284 (2007-08-01), Kim et al.
patent: 2003/0206547 (2003-11-01), Cho
patent: 2005/0045720 (2005-03-01), Fruhauf
patent: 2006/0208066 (2006-09-01), Finn et al.
patent: 2007/0164118 (2007-07-01), Degauque et al.
patent: 0424726 (1991-02-01), None
patent: 1313063 (2003-05-01), None
patent: 1605388 (2005-12-01), None

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