A terminal for carrying out at a private location a transaction consisting of alteration of a token value stored in an IC card issued to a cardholder via an on-line transaction session with an operatively compatible terminal at a remote location. The private terminal establishes data links with the IC...http://www.google.de/patents/US5917168?utm_source=gb-gplus-sharePatent US5917168 - System and method for revaluation of stored tokens in IC cards
