Method of data caching on a smartcard
US6880037B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2002 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | May 3, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/177
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Smartcards are gaining acceptance as a secure medium for storing information, typically of a personal and confidential nature. Unfortunately, the process of storing information to the smartcard is a time consuming task, often taking much longer than to read the same amount of information from the card. The non-volatile memory within the smartcard is typically of the FLASH type and does not facilitate fast writing a fast writing process thereto. In order to speed up this process, a comparative writing algorithm is utilized which only writes changed data to the smartcard memory, thus eliminating the need for storing duplicate information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.