Transaction processing system
US4877947A · kind A · utility
279Cited by
16References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1987 |
| Grant date | Oct 31, 1989 |
| Priority date | — |
| Expiry date | Jul 30, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07G1/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A transaction processing system using a prepaid microchip card includes a customer's microchip card reader/writer for communicating with a customer's microchip card in which a balance is recorded, and a vendor's microchip card reader/writer that can be electrically coupled to the customer's microchip card reader/writer and is used for communicating with a vendor's microchip card in which a balance is recorded. A transaction is processed by deducting the amount of the transaction from the balance in the customer's microchip card and adding this amount to the balance in the vendor's microchip card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.