Process as safety concept against unauthorized use of a payment instrument in cashless payment at payment sites
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United States of America Patent
Stats
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Dec 26, 1995
Grant Date -
N/A
app pub date -
Jan 18, 1994
filing date -
Jan 18, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The process provides a staggered degree of security as a safety concept against unauthorized use of a transaction card for purchasing of items. The card has four memories memorizing an amount of money, a money installment and its limiting value, a number of usable transactions and its limiting value, further data for doing an identity check of the ownership of the cardholder and also an authenticity check. The card is usable at three different types of payment instruments with or without an identity check and/or an authenticity check.
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