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    • 1. 发明申请
    • MEMORY SYSTEM
    • 记忆系统
    • US20100054069A1
    • 2010-03-04
    • US12251444
    • 2008-10-14
    • Shigemasa ShiotaHiroyuki GotoHirofumi ShibuyaFumio HaraYasuhiro Nakamura
    • Shigemasa ShiotaHiroyuki GotoHirofumi ShibuyaFumio HaraYasuhiro Nakamura
    • G11C7/00
    • G06F12/0246G06F13/161G06F13/1673G06F2212/7206G11C7/1006
    • The present invention provides a memory system which contributes to improvement in efficiency of a data process accompanying a memory access. A memory system has a rewritable nonvolatile memory, a buffer memory, and a controller. The controller controls, in response to an access request from an external apparatus, first data transfer between the controller and the external apparatus, second data transfer between the controller and the nonvolatile memory, and third data transfer between the controller and the buffer memory, controls transfer from the controller to the buffer memory in the third data transfer and transfer from the buffer memory to the controller in a time sharing manner, and enables the first data transfer or the second data transfer to be performed in parallel with the transfer carried out in the time sharing manner.
    • 本发明提供了一种有助于提高伴随存储器访问的数据处理的效率的存储器系统。 存储器系统具有可重写非易失性存储器,缓冲存储器和控制器。 控制器响应于来自外部设备的访问请求控制控制器和外部设备之间的第一数据传输,控制器和非易失性存储器之间的第二数据传输以及控制器和缓冲存储器之间的第三数据传送,控制 在第三次数据传送中从控制器传送到缓冲存储器,并以时间共享的方式从缓冲存储器传输到控制器,并且能够与第一次数据传送或第二数据传输并行执行 时间分享的方式。
    • 6. 发明申请
    • Memory System
    • 内存系统
    • US20120176842A1
    • 2012-07-12
    • US13270224
    • 2011-10-10
    • SHIGEMASA SHIOTAHiroyuki GotoHirofumi ShibuyaFumio HaraYasuhiro Nakamura
    • SHIGEMASA SHIOTAHiroyuki GotoHirofumi ShibuyaFumio HaraYasuhiro Nakamura
    • G11C16/04
    • G06F12/0246G06F13/161G06F13/1673G06F2212/7206G11C7/1006
    • The present invention provides a memory system which contributes to improvement in efficiency of a data process accompanying a memory access. A memory system has a rewritable nonvolatile memory, a buffer memory, and a controller. The controller controls, in response to an access request from an external apparatus, first data transfer between the controller and the external apparatus, second data transfer between the controller and the nonvolatile memory, and third data transfer between the controller and the buffer memory, controls transfer from the controller to the buffer memory in the third data transfer and transfer from the buffer memory to the controller in a time sharing manner, and enables the first data transfer or the second data transfer to be performed in parallel with the transfer carried out in the time sharing manner.
    • 本发明提供了一种有助于提高伴随存储器访问的数据处理的效率的存储器系统。 存储器系统具有可重写非易失性存储器,缓冲存储器和控制器。 控制器响应于来自外部设备的访问请求控制控制器和外部设备之间的第一数据传输,控制器和非易失性存储器之间的第二数据传输以及控制器和缓冲存储器之间的第三数据传送,控制 在第三次数据传送中从控制器传送到缓冲存储器,并以时间共享的方式从缓冲存储器传输到控制器,并且能够与第一次数据传送或第二数据传输并行执行 时间分享的方式。
    • 7. 发明申请
    • Nonvolatile memory system
    • 非易失性存储器系统
    • US20070174573A1
    • 2007-07-26
    • US11723735
    • 2007-03-21
    • Shigemasa ShiotaHiroyuki GotoHirofumi ShibuyaFumio HaraYasuhiro Nakamura
    • Shigemasa ShiotaHiroyuki GotoHirofumi ShibuyaFumio HaraYasuhiro Nakamura
    • G06F12/14G06F12/00
    • G06F21/79G06F12/1425
    • To prevent stored information from being changed even at the occurrence of an abnormal condition in an upstream side of a system due to uncontrollable run of an OS. A nonvolatile storage means having data storage areas and management areas for them in units of predetermined physical addresses has an access protect definition table TLB in a predetermined physical address, and the table has access attribute information defining whether to permit or not access to the data storage areas in association with the physical addresses. The memory system itself possesses access attribute information defining whether to permit or not a write to and a read from the data storage areas in association with addresses to implement an access protect function for write and read. Therefore, the access protect function is maintained even if an abnormal condition occurs in a host device that manages the memory system or controls it as a peripheral circuit.
    • 为了防止由于OS的不可控的运行而导致在系统的上游侧发生异常状况时存储的信息被改变。 以预定物理地址为单位具有数据存储区域和管理区域的非易失性存储装置具有预定物理地址中的访问保护定义表TLB,并且该表具有定义是否允许或不访问数据存储的访问属性信息 与物理地址相关的区域。 存储器系统本身具有定义是否允许与地址相关联的数据存储区域的写入和读取的访问属性信息,以实现用于写入和读取的访问保护功能。 因此,即使在管理存储器系统的主机设备中发生异常情况或将其控制为外围电路,也保持访问保护功能。
    • 9. 发明申请
    • Memory system
    • 内存系统
    • US20070285997A1
    • 2007-12-13
    • US11785177
    • 2007-04-16
    • Shigemasa ShiotaHiroyuki GotoHirofumi ShibuyaFumio HaraYasuhiro Nakamura
    • Shigemasa ShiotaHiroyuki GotoHirofumi ShibuyaFumio HaraYasuhiro Nakamura
    • G11C11/34
    • G06F12/0246G06F13/161G06F13/1673G06F2212/7206G11C7/1006
    • The present invention provides a memory system which contributes to improvement in efficiency of a data process accompanying a memory access. A memory system has a rewritable nonvolatile memory, a buffer memory, and a controller. The controller controls, in response to an access request from an external apparatus, first data transfer between the controller and the external apparatus, second data transfer between the controller and the nonvolatile memory, and third data transfer between the controller and the buffer memory, controls transfer from the controller to the buffer memory in the third data transfer and transfer from the buffer memory to the controller in a time sharing manner, and enables the first data transfer or the second data transfer to be performed in parallel with the transfer carried out in the time sharing manner.
    • 本发明提供了一种有助于提高伴随存储器访问的数据处理的效率的存储器系统。 存储器系统具有可重写非易失性存储器,缓冲存储器和控制器。 控制器响应于来自外部设备的访问请求控制控制器和外部设备之间的第一数据传输,控制器和非易失性存储器之间的第二数据传输以及控制器和缓冲存储器之间的第三数据传送,控制 在第三次数据传送中从控制器传送到缓冲存储器,并以时间共享的方式从缓冲存储器传输到控制器,并且能够与第一次数据传送或第二数据传输并行执行 时间分享的方式。