JPS6459580A - Data writing device for ic card - Google Patents
Data writing device for ic cardInfo
- Publication number
- JPS6459580A JPS6459580A JP62216942A JP21694287A JPS6459580A JP S6459580 A JPS6459580 A JP S6459580A JP 62216942 A JP62216942 A JP 62216942A JP 21694287 A JP21694287 A JP 21694287A JP S6459580 A JPS6459580 A JP S6459580A
- Authority
- JP
- Japan
- Prior art keywords
- address
- data
- writing
- written
- prescribed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To instantaneously find out a non-written address by reading the contents of a prescribed address when data are written, writing successively the data with the contents as a head address and writing the address after a writing completing address into the prescribed address after the writing of the data is executed. CONSTITUTION:A data writing device 1 of an IC card 2 sets a prescribed address to a storing means 4 of an IC card 2, writes the next address of a data writing completing address into the prescribed address as a next writing head address each time the data are written in the data area of the storing means 4, and when the data are written into a data area next, the data are successively written from a next writing head address written in the prescribed address. Thus, the writing address of the data can be found out instantaneously, and without erasing the previously written data, the storing means 4 can be used without waste and effectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62216942A JPS6459580A (en) | 1987-08-31 | 1987-08-31 | Data writing device for ic card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62216942A JPS6459580A (en) | 1987-08-31 | 1987-08-31 | Data writing device for ic card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6459580A true JPS6459580A (en) | 1989-03-07 |
Family
ID=16696348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62216942A Pending JPS6459580A (en) | 1987-08-31 | 1987-08-31 | Data writing device for ic card |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6459580A (en) |
-
1987
- 1987-08-31 JP JP62216942A patent/JPS6459580A/en active Pending
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