Non-contact IC card

Details Non-contact IC card Non-contact IC card

1992-10-23

1995-01-17

Hajec, Donald

Registers

Systems controlled by data bearing records

Credit or identification card systems

235492, 235382, 235381, 235379, 34082534, 34082531, G06K 500

Patent

active

053827783

ABSTRACT:
A non-contact IC card include a data transmitting/receiving device, a memory, a CPU, a first determining device, a second determining device, and a stopping device. When the data transmitting/receiving device receives a request signal, the first determining device determines whether first system identification information stored in the memory agrees with second system identification information contained in the request signal. At the same time, the second determining device determines whether use of the IC card indicated by use authorization information stored in the memory is authorized. When the first and second system identification information do not agree or when the use authorization information indicates that use of the IC card is not authorized, the stopping device stops the operation of the CPU until the next request signal is received.

REFERENCES:
patent: 4529870 (1983-07-01), Chaum
patent: 4877947 (1989-10-01), Mori
patent: 5191192 (1993-03-01), Takahira et al.
patent: 5204663 (1993-04-01), Lee
patent: 5221838 (1993-06-01), Gutman et al.
patent: 5252965 (1993-10-01), Gidwani et al.
patent: 5266785 (1993-11-01), Sugihara et al.

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