会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 10. 发明授权
    • Memory management unit, image forming apparatus, memory management method, and computer program
    • 存储器管理单元,图像形成装置,存储器管理方法和计算机程序
    • US08103846B2
    • 2012-01-24
    • US12488835
    • 2009-06-22
    • Takashi Aihara
    • Takashi Aihara
    • G06F12/00G06F12/02G06F12/16
    • G06F11/1441
    • A memory management unit for an information processing system includes a controller and a non-volatile memory. The controller controls data writing process. The non-volatile memory, used for storing non-rewritable and rewritable data, is partitioned into a read-only partition to store the non-rewritable data, and a rewritable partition to store the rewritable data including apparatus-specific data including access-restricted data required for activating the information processing system. The access-restricted data is prohibited from being written during normal usage but writable at specific times. The non-rewritable data, stored in the read-only partition, is protected from an abrupt power shutdown occurring when a data writing process is conducted to the rewritable data. The controller stores the access-restricted data to the read-only partition by changing an attribute of the read-only partition of the non-volatile memory from a read-only attribute to a rewritable attribute.
    • 用于信息处理系统的存储器管理单元包括控制器和非易失性存储器。 控制器控制数据写入过程。 用于存储不可重写和可重写数据的非易失性存储器被划分为只读分区以存储不可重写数据,以及可重写分区,用于存储可重写数据,包括设备专用数据,包括访问限制 激活信息处理系统所需的数据。 访问限制的数据在正常使用期间被禁止写入,但在特定时间可写。 存储在只读分区中的不可重写数据被保护免于在对可重写数据进行数据写入处理时发生突然的电源关闭。 控制器通过将非易失性存储器的只读分区的属性从只读属性改变为可重写属性来将访问受限的数据存储到只读分区。