-
公开(公告)号：US08040744B2
公开(公告)日：2011-10-18
申请号：US12348825
申请日：2009-01-05
IPC分类号： G11C29/00
CPC分类号： G11C11/5621 , G06F12/0246 , G06F12/0866 , G06F12/0897 , G06F2212/7202 , G11C29/76 , G11C2211/5641
摘要： Techniques for the management of spare blocks in re-programmable non-volatile memory system, such as a flash EEPROM system, are presented. In one set of techniques, for a memory partitioned into two sections (for example a binary section and a multi-state section), where blocks of one section are more prone to error, spare blocks can be transferred from the more error prone partition to the less error prone partition. In another set of techniques for a memory partitioned into two sections, blocks which fail in the more error prone partition are transferred to serve as spare blocks in the other partition. In a complementary set of techniques, a 1-bit time stamp is maintained for free blocks to determine whether the block has been written recently. Other techniques allow for spare blocks to be managed by way of a logical to physical conversion table by assigning them logical addresses that exceed the logical address space of which a host is aware.
摘要翻译： 提出了用于管理可重新编程的非易失性存储器系统中的备用块的技术，例如闪存EEPROM系统。 在一组技术中，对于分为两个部分（例如二进制部分和多状态部分）的内存，一个部分的块更容易出错，备用块可以从更易出错的分区传输到 较小的错误分区。 在分为两部分的内存的另一组技术中，在更容易出错的分区中失败的块被传送到另一分区中的备用块。 在一组互补的技术中，为空闲块维护1位时间戳，以确定块是否已被最近写入。 其他技术允许通过逻辑到物理转换表来管理备用块，分配逻辑地址超过主机知道的逻辑地址空间。
-
公开(公告)号：US20100172179A1
公开(公告)日：2010-07-08
申请号：US12348825
申请日：2009-01-05
CPC分类号： G11C11/5621 , G06F12/0246 , G06F12/0866 , G06F12/0897 , G06F2212/7202 , G11C29/76 , G11C2211/5641
摘要： Techniques for the management of spare blocks in re-programmable non-volatile memory system, such as a flash EEPROM system, are presented. In one set of techniques, for a memory partitioned into two sections (for example a binary section and a multi-state section), where blocks of one section are more prone to error, spare blocks can be transferred from the more error prone partition to the less error prone partition. In another set of techniques for a memory partitioned into two sections, blocks which fail in the more error prone partition are transferred to serve as spare blocks in the other partition. In a complementary set of techniques, a 1-bit time stamp is maintained for free blocks to determine whether the block has been written recently. Other techniques allow for spare blocks to be managed by way of a logical to physical conversion table by assigning them logical addresses that exceed the logical address space of which a host is aware.
摘要翻译： 提出了用于管理可重新编程的非易失性存储器系统中的备用块的技术，例如闪存EEPROM系统。 在一组技术中，对于分为两个部分（例如二进制部分和多状态部分）的内存，一个部分的块更容易出错，备用块可以从更易出错的分区传输到 较小的错误分区。 在分为两部分的内存的另一组技术中，在更容易出错的分区中失败的块被传送到另一分区中的备用块。 在一组互补的技术中，为空闲块维护1位时间戳，以确定块是否已被最近写入。 其他技术允许通过逻辑到物理转换表来管理备用块，分配逻辑地址超过主机知道的逻辑地址空间。
-
公开(公告)号：US07565478B2
公开(公告)日：2009-07-21
申请号：US11949618
申请日：2007-12-03
CPC分类号： G11C16/349 , G06F12/0246 , G06F2212/7205
摘要： A re-programmable non-volatile memory system, such as a flash EEPROM system, having its memory cells grouped into blocks of cells that are simultaneously erasable is operated to perform memory system housekeeping operations in the foreground during execution of a host command, wherein the housekeeping operations are unrelated to execution of the host command. Both one or more such housekeeping operations and execution of the host command are performed within a time budget established for executing that particular command. One such command is to write data being received to the memory. One such housekeeping operation is to level out the wear of the individual blocks that accumulates through repetitive erasing and re-programming.
摘要翻译： 操作一个可重新编程的非易失性存储器系统，例如闪存EEPROM系统，其具有分组为可同时擦除的单元块的存储器单元，以在主机命令的执行期间在前台执行存储器系统管理操作，其中， 内务管理操作与主机命令的执行无关。 在为执行该特定命令建立的时间预算内执行一个或多个此类内务处理操作和主机命令的执行。 一个这样的命令是将正在接收的数据写入存储器。 一个这样的内务处理操作是通过重复擦除和重新编程来平衡累积的各个块的磨损。
-
公开(公告)号：US20090265508A1
公开(公告)日：2009-10-22
申请号：US12493500
申请日：2009-06-29
CPC分类号： G11C16/349 , G06F12/0246 , G06F2212/7205
摘要： A re-programmable non-volatile memory system, such as a flash EEPROM system, having its memory cells grouped into blocks of cells that are simultaneously erasable is operated to perform memory system housekeeping operations in the foreground during execution of a host command, wherein the housekeeping operations are unrelated to execution of the host command. Both one or more such housekeeping operations and execution of the host command are performed within a time budget established for executing that particular command. One such command is to write data being received to the memory. One such housekeeping operation is to level out the wear of the individual blocks that accumulates through repetitive erasing and re-programming.
摘要翻译： 操作一个可重新编程的非易失性存储器系统，例如闪存EEPROM系统，其具有分组为可同时擦除的单元块的存储器单元，以在主机命令的执行期间在前台执行存储器系统管理操作，其中， 内务管理操作与主机命令的执行无关。 在为执行该特定命令建立的时间预算内执行一个或多个此类内务处理操作和主机命令的执行。 一个这样的命令是将正在接收的数据写入存储器。 一个这样的内务处理操作是通过重复擦除和重新编程来平衡累积的各个块的磨损。
-
公开(公告)号：US07315917B2
公开(公告)日：2008-01-01
申请号：US11312985
申请日：2005-12-19
CPC分类号： G11C16/349 , G06F12/0246 , G06F2212/7205
摘要： A re-programmable non-volatile memory system, such as a flash EEPROM system, having its memory cells grouped into blocks of cells that are simultaneously erasable is operated to perform memory system housekeeping operations in the foreground during execution of a host command, wherein the housekeeping operations are unrelated to execution of the host command. Both one or more such housekeeping operations and execution of the host command are performed within a time budget established for executing that particular command. One such command is to write data being received to the memory. One such housekeeping operation is to level out the wear of the individual blocks that accumulates through repetitive erasing and re-programming.
摘要翻译： 操作一个可重新编程的非易失性存储器系统，例如闪存EEPROM系统，其具有分组为可同时擦除的单元块的存储器单元，以在主机命令的执行期间在前台执行存储器系统管理操作，其中， 内务管理操作与主机命令的执行无关。 在为执行该特定命令建立的时间预算内执行一个或多个此类内务处理操作和主机命令的执行。 一个这样的命令是将正在接收的数据写入存储器。 一个这样的内务处理操作是通过重复擦除和重新编程来平衡累积的各个块的磨损。
-
公开(公告)号：US08364883B2
公开(公告)日：2013-01-29
申请号：US12493500
申请日：2009-06-29
CPC分类号： G11C16/349 , G06F12/0246 , G06F2212/7205
摘要： A re-programmable non-volatile memory system, such as a flash EEPROM system, having its memory cells grouped into blocks of cells that are simultaneously erasable is operated to perform memory system housekeeping operations in the foreground during execution of a host command, wherein the housekeeping operations are unrelated to execution of the host command. Both one or more such housekeeping operations and execution of the host command are performed within a time budget established for executing that particular command. One such command is to write data being received to the memory. One such housekeeping operation is to level out the wear of the individual blocks that accumulates through repetitive erasing and re-programming.
-
17.发明授权Non-volatile memory and method having block management with hot/cold data sorting 有权具有热/冷数据排序的块管理的非易失性存储器和方法公开(公告)号：US09176864B2
公开(公告)日：2015-11-03
申请号：US13468737
申请日：2012-05-10
申请人： Sergey Anatolievich Gorobets , Alan David Bennett , Tom Hugh Shippey , Liam Michael Parker , Yauheni Yaromenka , Steven T. Sprouse , William S. Wu , Marielle Bundukin
发明人： Sergey Anatolievich Gorobets , Alan David Bennett , Tom Hugh Shippey , Liam Michael Parker , Yauheni Yaromenka , Steven T. Sprouse , William S. Wu , Marielle Bundukin
CPC分类号： G06F12/0246 , G06F3/0611 , G06F3/064 , G06F3/0679 , G06F3/068 , G06F2212/7202 , G06F2212/7211 , G11C2211/5641
摘要： A non-volatile memory organized into flash erasable blocks sorts units of data according to a temperature assigned to each unit of data, where a higher temperature indicates a higher probability that the unit of data will suffer subsequent rewrites due to garbage collection operations. The units of data either come from a host write or from a relocation operation. The data are sorted either for storing into different storage portions, such as SLC and MLC, or into different operating streams, depending on their temperatures. This allows data of similar temperature to be dealt with in a manner appropriate for its temperature in order to minimize rewrites. Examples of a unit of data include a logical group and a block.
摘要翻译： 组织成闪存可擦除块的非易失性存储器根据分配给每个数据单元的温度对数据单元进行排序，其中较高的温度指示由于垃圾收集操作而导致的数据单元将遭受后续重写的更高概率。 数据单元来自主机写入或来自重定位操作。 根据其温度，将数据分类用于存储到不同的存储部分，例如SLC和MLC，或者分成不同的操作流。 这允许以适合其温度的方式处理类似温度的数据，以便使重写最小化。 数据单元的示例包括逻辑组和块。
-
18.发明申请Non-Volatile Memory and Method Having Block Management with Hot/Cold Data Sorting 有权具有热/冷数据排序的块管理的非易失性存储器和方法公开(公告)号：US20120297122A1
公开(公告)日：2012-11-22
申请号：US13468737
申请日：2012-05-10
申请人： Sergey Anatolievich Gorobets , Alan David Bennett , Tom Hugh Shippey , Liam Michael Parker , Yauheni Yaromenka , Steven T. Sprouse , William S. Wu , Marielle Bundukin
发明人： Sergey Anatolievich Gorobets , Alan David Bennett , Tom Hugh Shippey , Liam Michael Parker , Yauheni Yaromenka , Steven T. Sprouse , William S. Wu , Marielle Bundukin
IPC分类号： G06F12/02
CPC分类号： G06F12/0246 , G06F3/0611 , G06F3/064 , G06F3/0679 , G06F3/068 , G06F2212/7202 , G06F2212/7211 , G11C2211/5641
摘要： A non-volatile memory organized into flash erasable blocks sorts units of data according to a temperature assigned to each unit of data, where a higher temperature indicates a higher probability that the unit of data will suffer subsequent rewrites due to garbage collection operations. The units of data either come from a host write or from a relocation operation. The data are sorted either for storing into different storage portions, such as SLC and MLC, or into different operating streams, depending on their temperatures. This allows data of similar temperature to be dealt with in a manner appropriate for its temperature in order to minimize rewrites. Examples of a unit of data include a logical group and a block.
摘要翻译： 组织成闪存可擦除块的非易失性存储器根据分配给每个数据单元的温度对数据单元进行排序，其中较高的温度指示由于垃圾收集操作而导致的数据单元将遭受后续重写的更高概率。 数据单元来自主机写入或来自重定位操作。 根据其温度，将数据分类用于存储到不同的存储部分，例如SLC和MLC，或者分成不同的操作流。 这允许以适合其温度的方式处理类似温度的数据，以便使重写最小化。 数据单元的示例包括逻辑组和块。
-
公开(公告)号：US20110191530A1
公开(公告)日：2011-08-04
申请号：US13084396
申请日：2011-04-11
IPC分类号： G06F12/00
CPC分类号： G11C29/76 , G06F12/0246 , G06F2212/7201 , G06F2212/7208 , G11C29/808
摘要： The present invention presents techniques for the linking of physical blocks of a non-volatile memory into composite logical structures or “metablocks”. After determining an initial linking of good physical blocks into metablocks, a record of the linking is maintained in the non-volatile memory where it can be readily accessed when needed. In one set of embodiments, the initially linking is deterministically formed according to an algorithm and can be optimized according to the pattern of any bad blocks in the memory. As additional bad blocks arise, the linking is updated using by replacing the bad blocks in a linking with good blocks, preferably in the same sub-array of the memory as the block that they are replacing.
摘要翻译： 本发明提出了用于将非易失性存储器的物理块链接到复合逻辑结构或“元区块”中的技术。 在确定好的物理块到元区块的初始链接之后，在非易失性存储器中维护链接的记录，在需要时可以容易地访问。 在一组实施例中，根据算法确定性地形成初始链接，并且可以根据存储器中的任何坏块的模式进行优化。 随着额外的坏块出现，链接被更新，通过替换与优质块链接的坏块，优选地与它们所替换的块相同的存储器子阵列来更新。
-
公开(公告)号：US20090292944A1
公开(公告)日：2009-11-26
申请号：US12512282
申请日：2009-07-30
IPC分类号： G06F11/20
CPC分类号： G11C29/76 , G06F12/0246 , G06F2212/7201 , G06F2212/7208 , G11C29/808
摘要： The present invention presents techniques for the linking of physical blocks of a non-volatile memory into composite logical structures or “metablocks”. After determining an initial linking of good physical blocks into metablocks, a record of the linking is maintained in the non-volatile memory where it can be readily accessed when needed. In one set of embodiments, the initially linking is deterministically formed according to an algorithm and can be optimized according to the pattern of any bad blocks in the memory. As additional bad blocks arise, the linking is updated using by replacing the bad blocks in a linking with good blocks, preferably in the same sub-array of the memory as the block that they are replacing.
摘要翻译： 本发明提出了用于将非易失性存储器的物理块链接到复合逻辑结构或“元区块”中的技术。 在确定好的物理块到元区块的初始链接之后，在非易失性存储器中维护链接的记录，在需要时可以容易地访问。 在一组实施例中，根据算法确定性地形成初始链接，并且可以根据存储器中的任何坏块的模式进行优化。 随着额外的坏块出现，链接被更新，通过替换与优质块链接的坏块，优选地与它们所替换的块相同的存储器子阵列来更新。
-
-
-
-
-
-
-
-
-
搜索结果
59 条记录 (耗时 0.041 秒)
