Chip card
First Claim
1. A chip card with several microcontrollers (5, 7) as well as connections (1, 2, 3) for data exchange with a read/write device, whereby the connections (1, 2, 3) are contact connections as well as contact-free connections and the read/write devices are capable of accessing the various microcontrollers (5, 7) separately, characterized in thatthe connections (1, 2, 3) are each made to a connecting unit (4), which connecting unit determines which of the microcontrollers (5, 7) should enter into the data exchange with the read/write device, and in that the connecting unit (4) establishes a connection (6) for the data exchange between the connections (1, 2, 3) and the appertaining microcontroller (5, 7).
1 Assignment
0 Petitions
Accused Products
Abstract
A connecting unit is provided for chip cards with an embedded IC and with and without contacts which makes it possible to recognize various applications of cards at a terminal and, depending on the application, to activate different microprocessors (5,7) on the card.
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Citations
17 Claims
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1. A chip card with several microcontrollers (5, 7) as well as connections (1, 2, 3) for data exchange with a read/write device, whereby the connections (1, 2, 3) are contact connections as well as contact-free connections and the read/write devices are capable of accessing the various microcontrollers (5, 7) separately, characterized in that
the connections (1, 2, 3) are each made to a connecting unit (4), which connecting unit determines which of the microcontrollers (5, 7) should enter into the data exchange with the read/write device, and in that the connecting unit (4) establishes a connection (6) for the data exchange between the connections (1, 2, 3) and the appertaining microcontroller (5, 7).
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9. A chip card with a plurality of microcontrollers (5, 7) as well as connections (1, 2, 3) for a data exchange with a read/write apparatus, and wherein the plurality of microcontrollers (5, 7) are accessible separately, wherein
the connections (1, 2, 3) are guided to a connecting unit (4), wherein the connecting unit (4) decides which of the microcontrollers (5, 7) is to enter into a data exchange with the read/write apparatus, wherein the connecting unit (4) subsequently establishes a connection (6) for the data exchange between the connections (1, 2, 3) and the respective selected microcontroller (5, 7).
Specification