Card for interaction with a computer
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United States of America Patent
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-
Feb 26, 2008
Issued Date -
N/A
app pub date -
Oct 4, 1999
filing date -
Oct 2, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A smart card comprising: a memory for storing information; at least one transmitting or receiving antenna; and a low frequency circuit, for handling information associated with said antenna and said memory, which information is modulated at a modulation frequency of between 5 kHz and 100 kHz. Preferably the antenna is an acoustic antenna.
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