IC card having state marker for record access
US4829169A · kind A · utility
134Cited by
5References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 27, 1986 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Jun 27, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q20/35765
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
An IC card including a control section and a writable memory, wherein the memory is provided with an index section and a storage area section for recording data. Storage areas are allocated in the memory by use of indices, namely, parameters including a start address of each storage area, a number of records, and a record length are written in each index and the control section calculates an address of each storage area by use of the parameters according to an address calculation program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.