| 发明名称 | Access control apparatus, storage apparatus, and method | ||
| 摘要 | An access control apparatus for controlling an access to a storage device, the access control apparatus includes a measuring unit configured to measure the time to erase data stored in the storage device, and a determination unit configured to determine a data size of an error correcting code added to data stored in the storage device in accordance with the time measured by the measuring unit. The access control apparatus includes a generation unit configured to generate the error correcting code having the data size determined by the determination unit, and an access controller configured to write the data and the error correcting code generated by the generation unit into the storage device. | ||
| 申请公布号 | US8839072(B2) | 申请公布日期 | 2014.09.16 |
| 申请号 | US201113297972 | 申请日期 | 2011.11.16 |
| 申请人 | Fujitsu Limited | 发明人 | Uchida Atsushi;Haneda Terumasa;Kawano Yoko;Cho Emi |
| 分类号 | G11C29/00;H03M13/00;G06F11/10;G11C29/02;G11C29/04;H03M13/15;G11C16/00 | 主分类号 | G11C29/00 |
| 代理机构 | Fujitsu Patent Center | 代理人 | Fujitsu Patent Center |
| 主权项 | 1. An access control apparatus for controlling an access to a storage device, the access control apparatus comprising: a measuring unit configured to measure an erase time to erase data stored in the storage device; a determination unit configured to determine a data size of an error correcting code added to data stored in the storage device in accordance with the erase time, the data size being equal to a predetermined size when the erase time is less than or equal to a predetermined time; a generation unit configured to generate the error correcting code having the data size determined by the determination unit; and an access controller configured to write the data and the error correcting code generated by the generation unit into the storage device. | ||
| 地址 | Kawasaki JP | ||