Method and device for selecting a reconfigurable communications protocol between and IC card and a terminal
US6578768B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2000 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Dec 21, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q20/1085
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
There is provided a method and device for selecting a communications protocol between an integrated circuit card and a terminal. The terminal supports at least two communications protocols, with one of the at least two communications protocols being a preferred communications protocol. The terminal transmits a reset to the integrated circuit card and receives an answer-to-reset from the integrated circuit card indicative of a first communications protocol. The terminal determines whether the first communications protocol matches the preferred communications protocol. If the first communications protocol does not match the preferred communications protocol, the terminal transmits another reset to the integrated circuit card and receives another answer-to-reset from the integrated circuit card indicatives of a second communications protocol. According to another aspect of the invention, the integrated circuit card has a processing unit and a memory coupled to the processing unit, the memory having stored therein a plurality of answers-to-reset, where each of the plurality of answers-to-reset is indicative of a communications protocol. The integrated circuit card transmits one of the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.