IC card, information processing terminal, trilateral data communication system, and method
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United States of America Patent
Stats
-
Mar 13, 2007
Grant Date -
Jun 10, 2004
app pub date -
Oct 29, 2002
filing date -
Oct 31, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An IC card transmits data received from a card reading and writing apparatus to a portable terminal via an external interface without changing the received data, or after the received data is converted according to an appropriate conversion scheme or is converted into other packet data. Conversely, the IC card transmits data received from the portable terminal via the external interface to the card reading and writing apparatus via a non-contact interface without changing the received data, or after the received data is converted according to an appropriate conversion scheme or is converted into other packet data. Therefore, non-contact data communication can be performed between the information processing terminal connected to the IC card and the card reading and writing apparatus.
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