Method of making recoverable smart card transactions, a method o

Details Method of making recoverable smart card transactions, a method o Method of making recoverable smart card transactions, a method o

1997-09-23

2000-06-06

Le, Thien M.

Registers

Systems controlled by data bearing records

Credit or identification card systems

235375, 235384, 235383, 235492, 902 1, 902 13, 902 21, 902 22, G06K 500

Patent

active

06070795&

ABSTRACT:
A method of recovering and thus possibly completing interrupted smart card transactions includes providing a smart card that stores a first and a second pointer, the second pointer being used to indicate an update of the first pointer. In the case of an interruption of a smart card transaction, these pointers are be used to indicate whether a change of a card balance has taken place by the equality of the values of these pointers.

REFERENCES:
patent: 5565857 (1996-10-01), Lee
patent: 5742756 (1998-04-01), Dillaway et al.
patent: 5848400 (1998-12-01), Chang

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