Non-contact IC card having enhanced reliability

Details Non-contact IC card having enhanced reliability Non-contact IC card having enhanced reliability

2006-05-16

2006-05-16

Stcyr, Daniel (Department: 2876)

Registers

Records

Conductive

C235S441000

Reexamination Certificate

active

07044388

ABSTRACT:
To increase the reliability of a non-contact IC card for use in such applications as a door key, etc., two separate combinations of an IC chip and an antenna coil coupled to that chip are provided in the card, with each IC chip storing the same information, such as a key code. Since the probability of both of the IC chips being damaged concurrently due to application of external force is much smaller than the probability of failure of a single IC chip, the objective of enhanced reliability is effectively achieved.

REFERENCES:
patent: 6412702 (2002-07-01), Ishikawa et al.
patent: 6422473 (2002-07-01), Ikefuji et al.
patent: 6522549 (2003-02-01), Kano et al.
patent: 20110585 (2001-11-01), None
patent: 2001101370 (2001-04-01), None

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