Chip card with an electronic blocking function
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 20, 2003
Grant Date -
N/A
app pub date -
Oct 13, 2000
filing date -
Apr 14, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a circuit for a chip card, characterized by an active function, which deactivates other function by interrupting the electrical connections. The chip card has two switching elements and two different transmission circuits for exchanging energy and data bi-directionally to an outside location, wherein the transmission circuits are set in a first and a second active function so that when the first active function of the chip card establishes communication, the second active function of the chip card is made inactive.
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