IC card

Details IC card IC card

1995-07-26

1996-09-24

Nelms, David C.

Static information storage and retrieval

Hardware for storage elements

365 63, 365 94, G11C 506, G11C 1700

Patent

active

055597319

ABSTRACT:
An IC card in which the content of a ROM may be modified without replacing the ROM by dismantling the card. The IC card comprises: a ROM for storing a program; an input-output section for inputting/outputting signals from/to an external equipment; a controller for processing the input/output signal from/to the external equipment in accordance with the program in the ROM; and a control gate for, in normal operation, connecting the input-output section to the controller and for connecting the input-output section to the ROM when the external equipment is to rewrite the content of the ROM.

REFERENCES:
patent: 5402385 (1995-03-01), Ozeki et al.

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