Currency converter
US5969974A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1997 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Nov 5, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/0258
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A currency converter operable in program, convert and calculator modes enables operators in program mode to store multiple foreign exchange rates in a data table of pre-stored currencies, enables in convert mode to perform both multiple, single-currency conversions as well as cross-currency conversions, and enables in calculate mode to perform arithmetic and memory functions passing computations seamlessly between convert and calculator modes. The currency converter is compact enough to comfortably fit in pocket or purse, and is battery powered. The currency converter includes a dual currency display that provides intuitively transparent operation substantially free from data entry errors and that allows users to select, and to see, two relevant currencies, home and foreign, or foreign and foreign, at the same time. Relevant foreign exchange rates may be entered prior to travel, freeing the user from on-site use anxieties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.