Non-contact IC card
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United States of America Patent
Stats
-
Jun 14, 1994
Grant Date -
N/A
app pub date -
Jan 25, 1993
filing date -
Jan 30, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A non-contact IC card has a high mechanical strength with respect to bending and twisting, although thin, yet allows the mounting area of a circuit board to be effectively used. A highly rigid, electrically-conducting reinforcing frame is disposed on the outer edge of a circuit board to increase the mechanical strength of the card with respect to bending and twisting. Further, the reinforcing frame is electrically connected to conductor patterns of a spiral coil on the circuit board having an inductance L in an antenna circuit.
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