| 6193163 |
Smart card with replaceable chip |
| Feb-27-2001 |
A smart card is provided having a removable integrated circuit. The integrated circuit is mounted on a semiconductor chip assembly which is locked within the smart card. The semiconductor chip assembly... |
| 6119946 |
Countable electronic monetary system and method |
| Sep-19-2000 |
A smart card payment system using stored value in the form of serialized electronic coins and electronic bills, which provides efficient security monitoring without the need for full centralized accounting... |
| 6098889 |
Hybrid information recording medium with masking layer |
| Aug-8-2000 |
An optical recording medium includes an integrated circuit (IC) module whose exposed surface is masked so as not to be visually recognized. The optical recording medium can be efficiently manufactured... |
| 6059186 |
Digital cash safe and a method for transferring a monetary value therefrom and thereto |
| May-9-2000 |
A digital cash safe for storing a monetary value corresponding to an amount of digital cash. The digital cash safe includes a circuit board on which a plurality of storage devices are mounted each of the... |
| 5621640 |
Automatic philanthropic contribution system |
| Apr-15-1997 |
An automatic donation system for a sales establishment includes an entry arrangement for entering the price of a product into a cash register and for entering the amount of cash being paid and a calculator... |
