首页> 外国专利> METHOD AND SYSTEM FOR IMPROVING A CONTROL OF A LIMIT ON WRITING CYCLES OF AN IC CARD

METHOD AND SYSTEM FOR IMPROVING A CONTROL OF A LIMIT ON WRITING CYCLES OF AN IC CARD

机译:改善对IC卡的写入周期的限制的控制的方法和系统

摘要

The present invention relates to a method and system for controlling a number of writing cycles supported by a cell or portion (11) of a non volatile memory (4) of an IC Card (10), including the steps of counting write accesses to the memory portion (11) and storing a first counter (21) of the write accesses in another portion (21) of said non volatile memory (4). The method comprises coupling the first counter (21) to a second counter or value (31) associated to a RAM (4) (Random Access Memory) of the IC Card (10), wherein the second counter or value (31) is updated each time the write accesses occur on said cell or portion (11) to be controlled and the first counter (21) is written in the another portion of non volatile memory only when the second counter or value (21) corresponds to a predetermined value.
机译:本发明涉及一种用于控制IC的非易失性存储器( 4 )的单元或部分( 11 )所支持的写入周期数的方法和系统。卡( 10 ),包括以下步骤:计算对内存部分( 11 )的写访问,并存储存储区的第一计数器( 21 )在所述非易失性存储器( 4 )的另一部分( 21 )中进行写访问。该方法包括将第一计数器( 21 )耦合到与RAM( 4 )相关的第二计数器或值( 31 )(随机访问) IC卡( 10 )的存储器),其中,每次在所述单元或部分()上发生写访问时,第二计数器或值( 31 )都会更新11 )进行控制,并且仅当第二计数器或值( 21 )时,才会将第一计数器( 21 )写入非易失性存储器的另一部分对应于预定值。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号