Card charging systems
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United States of America Patent
Stats
-
Jul 27, 1999
Grant Date -
N/A
app pub date -
Jan 17, 1996
filing date -
Mar 17, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A security device for use in a card charging system where a service or product providing facility issues services or products by the use of credit from a card. The security device comprises signal transmission means for delivering signals to a purchasing facility to enable a user to acquire a service or product dependent on the credit debited from a card, a record keeping subsystem to certify the credit debited from the card and to identify which account is to receive the debited credit and signal processing and output means for generating signals indicating a successful transaction. The signals may be encoded by use of encryption techniques. A separable security subsystem is provided to ensure a record of transactions is available if power fails on the main security device.
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