Reading data from a smart card
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United States of America Patent
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May 29, 2001
Grant Date -
N/A
app pub date -
Nov 29, 1994
filing date -
Apr 1, 1993
priority date (Note) -
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Abstract
A method of reading use-variable data from a smart card (1) includes selected data in the answer-to-reset signal sent from the card in response to a reset signal sent from a card reader (4). In this way a reader can be employed with inexpensive components and limited processing power since full implementation of a communication protocol is not required. An inexpensive key-fob (3) is provided for reading the value balance (7) of an electronic purse card, for example.
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