Registers – Records – Conductive
Reexamination Certificate
2005-05-03
2005-05-03
Frech, Karl D. (Department: 2876)
Registers
Records
Conductive
C235S380000
Reexamination Certificate
active
06886753
ABSTRACT:
An IC card1(portable card) having an integrated device. The IC card1includes a nonvolatile memory12and an encryption circuit10. The nonvolatile memory12is accessed after 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. This provides a high-level security of the personal information.
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Frech Karl D.
Matsushita Electric - Industrial Co., Ltd.
Taylor April
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