PROXIMITY COMMUNICATION SYSTEM, PROXIMITY COMMUNICATION METHOD, DATA MANAGING APPARATUS, DATA MANAGING METHOD, RECORDING MEDIUM, AND COMPUTER PROGRAM

摘要

In a non-contact IC card, one block includes 16 bytes as a unit of reading/writing information, and the writing of the information up to 8 blocks which is a maximum simultaneous write size is guaranteed. The structure of a TOC (Table Of Contents) is built on a memory space of the card. When information exceeding the maximum simultaneous write size is written in, single transaction completes the corresponding TOC rewrite so as to prevent contents of the memory from being damaged even if the card is removed from a write device in the middle of writing. When writing data larger than a predetermined size, even if communication between devices is interrupted at any timing, the data consistency can be guaranteed suitably. IMAGE