Registers – Systems controlled by data bearing records – Credit or identification card systems
Reexamination Certificate
2005-01-11
2005-01-11
Frech, Karl D (Department: 2876)
Registers
Systems controlled by data bearing records
Credit or identification card systems
C235S380000, C235S487000
Reexamination Certificate
active
06840443
ABSTRACT:
An IC card1having an integrated device includes a nonvolatile memory12and an encryption circuit10. The nonvolatile memory12after the IC card1is placed in a radio wave zone to receive a power supply from a terminal apparatus through a radio wave. The encryption circuit10coordinates with a first terminal apparatus to perform a mutual authentication. The integrated device includes a nonvolatile memory13and an encryption circuit11. The nonvolatile memory13is accessed after the IC card1is placed at a location close to an antenna in the first terminal apparatus and only after the IC card1receives a higher-level power supply from the antenna. The encryption circuit11coordinates with the terminal apparatus to perform a mutual authentication. Personal information that requires high security is stored in the nonvolatile memory13and the encryption circuit11performs a mutual authentication whenever the nonvolatile memory13is accessed.
REFERENCES:
patent: 4310897 (1982-01-01), Lazzari
patent: 4837422 (1989-06-01), Dethloff et al.
patent: 4982070 (1991-01-01), Bezin et al.
patent: 5237609 (1993-08-01), Kimura
patent: 5434395 (1995-07-01), Storck et al.
patent: 5471203 (1995-11-01), Sasaki et al.
patent: 5521362 (1996-05-01), Powers
patent: 5557662 (1996-09-01), Kenmochi et al.
patent: 6266647 (2001-07-01), Fernandez
patent: 6489883 (2002-12-01), Iiyama et al.
patent: 6704608 (2004-03-01), Azuma
patent: 196 11 986 (1996-10-01), None
patent: 0 955 602 (1999-11-01), None
patent: 2 746 200 (1997-09-01), None
patent: 04-069791 (1992-03-01), None
patent: 05-346978 (1993-12-01), None
patent: 08-016739 (1996-01-01), None
patent: 2543440 (1996-07-01), None
patent: 2557451 (1996-09-01), None
patent: 10-289296 (1998-10-01), None
LandOfFree
Dual purpose portable card, a communication system, a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual purpose portable card, a communication system, a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual purpose portable card, a communication system, a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3410809