Non contact IC card and a non contact IC card system

Details Non contact IC card and a non contact IC card system Non contact IC card and a non contact IC card system

1995-12-19

1998-04-07

Hajec, Donald T.

Registers

Records

Conductive

235380, G06K 1906, G06K 500

Patent

active

057367280

ABSTRACT:
In a non contact IC card for generating a power supply voltage from electric waves transmitted via wireless communication from a base unit, a reset signal generating circuit is provided to reset the internal circuits when the power supply voltage rises to a predetermined operating voltage and when it is lowered below a minimum voltage of voltages which ensure the normal operation of the internal circuits, thereby operations such as a writing operation in the internal circuits can be made stable and the time required for communication can be shortened.

REFERENCES:
patent: 4818855 (1989-04-01), Mongeon et al.
patent: 5068521 (1991-11-01), Yamaguchi
patent: 5182442 (1993-01-01), Takahira
patent: 5313112 (1994-05-01), Macks
patent: 5326965 (1994-07-01), Inoue
patent: 5523710 (1996-06-01), Miyake et al.
patent: 5534804 (1996-07-01), Woo
patent: 5543741 (1996-08-01), Purits

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