Portable electronic apparatus for writing and reading data to an

Details Portable electronic apparatus for writing and reading data to an Portable electronic apparatus for writing and reading data to an

1989-03-07

1992-03-17

Trafton, David

Registers

Records

Conductive

3642823, 360 49, 36523001, G06K 1906

Patent

active

050971182

ABSTRACT:
A memory section of an IC card is divided into a plurality of areas. Identification data is induvidually assigned to each area. The IC card has a first means for selecting a physically identical area based on at least two identification data. The IC card further has a second means for setting different access enable/disable conditions when an access is made by the first means based on the two identification data. The IC card further has a third means for setting the same access enable/disable condition. The IC card further has a fourth means for selecting whether the second or third means is used.

REFERENCES:
patent: 3829837 (1974-08-01), Farr
patent: 4575827 (1986-03-01), Kulakowski
patent: 4734568 (1988-03-01), Watanabe
patent: 4797543 (1989-01-01), Watanabe

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