Browse Prior Art Database

Staged Purchase Device for Electronic Purse System

IP.com Disclosure Number: IPCOM000119056D
Original Publication Date: 1997-Nov-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Bublitz, H: AUTHOR [+2]

Abstract

The electronic purse, typically in the form of a smart card loadable from an Automatic Teller Machine (ATM), provides a particularly secure and convenient payment system.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Staged Purchase Device for Electronic Purse System

      The electronic purse, typically in the form of a smart card
loadable from an Automatic Teller Machine (ATM), provides a
particularly secure and convenient payment system.

      Moreover, performing a purchase transaction with such a card
requires a number of messages to be exchanged between the purse and
the Security Access Module, which take a finite time to complete.
There may be insufficient time to complete all the message exchanges
in certain  situations, e.g., when in a car driving on a road and a
transaction may,  as a result, be aborted.

      The described solution provides a purchase device which is
split into multiple physical parts.  The purchase transaction is
completed by the card exchanging messages with the individual
physical parts of the purchase device in a set sequence.  The
individual parts of  the purchase device all have access to the
Security Access Module.

      This permits a purchase transaction to take place in situations
where a purse is not in one physical place long enough to complete
all message exchanges but does pass through a number of physical
points in a  set sequence, enabling completeness of all message
exchanges by the end  of the sequence.