公开(公告)号：US20060155922A1

公开(公告)日：2006-07-13

申请号：US11192386

申请日：2005-07-27

申请人： Sergey Gorobets ,  Peter Smith ,  Alan Bennett

发明人： Sergey Gorobets ,  Peter Smith ,  Alan Bennett

IPC分类号： G06F12/00

CPC分类号： G06F12/0246 ,  G06F2212/7203

摘要： Update data to a non-volatile memory may be recorded in at least two interleaving streams such as either into an update block or a scratch pad block depending on a predetermined condition. The scratch pad block is used to buffered update data that are ultimately destined for the update block. In a preferred embodiment, an index of the data stored in the scratch pad block as well that stored in the update block is saved in an unused portion of the scratch pad block every time the scratch pad block is written to.

摘要翻译： 根据预定条件，将数据更新到非易失性存储器可以被记录在至少两个交织流中，诸如更新块或便笺块块中。 缓冲块块用于缓冲最终发往更新块的更新数据。 在优选实施例中，存储在便签区块中的数据的索引以及存储在更新块中的数据被保存在每次写入便笺块块时的便笺本块的未使用部分中。

公开(公告)号：US20060106972A1

公开(公告)日：2006-05-18

申请号：US10990189

申请日：2004-11-15

申请人： Sergey Gorobets ,  Alan Bennett ,  Peter Smith ,  Alan Sinclair ,  Kevin Conley ,  Philip Royall

发明人： Sergey Gorobets ,  Alan Bennett ,  Peter Smith ,  Alan Sinclair ,  Kevin Conley ,  Philip Royall

IPC分类号： G06F12/00

CPC分类号： G06F12/0246 ,  G06F2212/1036 ,  G06F2212/7211

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 in a manner to level out the wear of the individual blocks through repetitive erasing and re-programming. This may be accomplished without use of counts of the number of times the individual blocks experience erase and re-programming but such counts can optionally aid in carrying out the wear leveling process. Individual active physical blocks are chosen to be exchanged with those of an erased block pool in a predefined order.

摘要翻译： 将其存储单元分组为同时可擦除的单元块的诸如闪存EEPROM系统的可重新编程的非易失性存储器系统以通过重复擦除和重新排列来平衡各个块的磨损的方式操作， 编程。 这可以在不使用单个块经历擦除和重新编程的次数的计数的情况下实现，但是这样的计数可以可选地有助于执行磨损均衡过程。 选择单独的活动物理块以按预定义的顺序与擦除的块池的块进行交换。

公开(公告)号：US20060155921A1

公开(公告)日：2006-07-13

申请号：US11192220

申请日：2005-07-27

申请人： Sergey Gorobets ,  Peter Smith ,  Alan Bennett

发明人： Sergey Gorobets ,  Peter Smith ,  Alan Bennett

IPC分类号： G06F12/00

CPC分类号： G06F12/0246 ,  G06F2212/1032 ,  G06F2212/7203

摘要： Update data to a non-volatile memory may be recorded in at least two interleaving streams such as either into an update block or a scratch pad block depending on a predetermined condition. The scratch pad block is used to buffered update data that are ultimately destined for the update block. Synchronization information about the order recording of updates among the streams is saved with at least one of the streams. This will allow the most recently written version of data that may exist on multiple memory blocks to be identified. In one embodiment, the synchronization information is saved in a first block and is a write pointer that points to the next recording location in a second block. In another embodiment, the synchronization information is a time stamp.

摘要翻译： 根据预定条件，将数据更新到非易失性存储器可以被记录在至少两个交织流中，诸如更新块或便笺块块中。 缓冲块块用于缓冲最终发往更新块的更新数据。 与流中的更新的顺序记录的同步信息与至少一个流一起被保存。 这将允许识别可能存在于多个内存块上的最新版本的数据。 在一个实施例中，同步信息被保存在第一块中，并且是指向第二块中的下一个记录位置的写指针。 在另一个实施例中，同步信息是时间戳。

公开(公告)号：US20050141312A1

公开(公告)日：2005-06-30

申请号：US10917867

申请日：2004-08-13

申请人： Alan Sinclair ,  Sergey Gorobets ,  Alan Bennett ,  Peter Smith

发明人： Alan Sinclair ,  Sergey Gorobets ,  Alan Bennett ,  Peter Smith

IPC分类号： G06F11/20 ,  G06F12/02 ,  G11C7/00 ,  G11C11/56 ,  G11C16/10 ,  G11C16/34 ,  G11C29/00

CPC分类号： G06F11/1666 ,  G06F11/1072 ,  G06F11/141 ,  G06F11/1415 ,  G06F11/1658 ,  G06F12/0246 ,  G06F2212/7202 ,  G06F2212/7203 ,  G06F2212/7205 ,  G06F2212/7208 ,  G11C11/5621 ,  G11C11/5628 ,  G11C16/102 ,  G11C16/105 ,  G11C16/20 ,  G11C29/00 ,  G11C29/76 ,  G11C2211/5641

摘要： In a nonvolatile memory with block management system that supports update blocks with non-sequential logical units, an index of the logical units in a non-sequential update block is buffered in RAM and stored periodically into the non-volatile memory. In one embodiment, the index is stored in a block dedicated for storing indices. In another embodiment, the index is stored in the update block itself. In yet another embodiment, the index is stored in the header of each logical unit. In another aspect, the logical units written after the last index update but before the next have their indexing information stored in the header of each logical unit. In this way, after a power outage, the location of recently written logical units can be determined without having to perform a scanning during initialization. In yet another aspect, a block is managed as partially sequential and partially non-sequential, directed to more than one logical subgroup.

摘要翻译： 在具有支持具有非顺序逻辑单元的更新块的块管理系统的非易失性存储器中，非顺序更新块中的逻辑单元的索引被缓冲在RAM中并被周期性地存储到非易失性存储器中。 在一个实施例中，索引被存储在专用于存储索引的块中。 在另一个实施例中，索引被存储在更新块本身中。 在另一个实施例中，索引被存储在每个逻辑单元的标题中。 在另一方面，在最后一个索引更新之后但在下一个之前写入的逻辑单元将其索引信息存储在每个逻辑单元的标题中。 以这种方式，在断电之后，可以确定最近写入的逻辑单元的位置，而不必在初始化期间执行扫描。 在另一方面，块被部署顺序地且部分地非顺序地管理，定向到多于一个的逻辑子组。

公开(公告)号：US20060155920A1

公开(公告)日：2006-07-13

申请号：US11191686

申请日：2005-07-27

申请人： Peter Smith ,  Sergey Gorobets ,  Alan Bennett

发明人： Peter Smith ,  Sergey Gorobets ,  Alan Bennett

IPC分类号： G06F12/00

CPC分类号： G06F3/064 ,  G06F3/0616 ,  G06F3/0679 ,  G06F12/0246 ,  G06F2212/7203 ,  G11C16/102

摘要： In a memory that is programmable page by page and each page having multiple sectors that are once-programmable, even if successive writes are sequential, the data recorded to an update block may be fragmented and non-sequential. Instead of recording update data to an update block, the data is being recorded in at least two interleaving streams. When a full page of data is available, it is recorded to the update block. Otherwise, it is temporarily recorded to the scratch pad block until a full page of data becomes available to be transferred to the update block. Preferably, a pipeline operation allows the recording to the update block to be set up as soon as the host write command indicates a full page could be written. If the actual write data is incomplete due to interruptions, the setup will be canceled and recording is made to the scratch pad block instead.

摘要翻译： 在逐页可编程的存储器中，每页具有一次可编程的多个扇区，即使连续的写入是顺序的，记录到更新块的数据可能是分段的和非顺序的。 代替将更新数据记录到更新块，数据被记录在至少两个交错流中。 当全页数据可用时，它被记录到更新块。 否则，它暂时记录到便笺块块中，直到完整页面的数据可用于传送到更新块。 优选地，管道操作允许一旦主机写入命令指示可以写入完整页面就可以对更新块进行记录。 如果实际的写入数据由于中断而不完整，则设置将被取消，而代之以记录。

公开(公告)号：US20050141313A1

公开(公告)日：2005-06-30

申请号：US10917888

申请日：2004-08-13

申请人： Sergey Gorobets ,  Peter Smith ,  Alan Bennett

发明人： Sergey Gorobets ,  Peter Smith ,  Alan Bennett

IPC分类号： G06F11/20 ,  G06F12/02 ,  G11C7/00 ,  G11C11/56 ,  G11C16/10 ,  G11C16/34 ,  G11C29/00 ,  G11C11/34

CPC分类号： G06F11/1666 ,  G06F11/1072 ,  G06F11/141 ,  G06F11/1415 ,  G06F11/1658 ,  G06F12/0246 ,  G06F2212/7202 ,  G06F2212/7203 ,  G06F2212/7205 ,  G06F2212/7208 ,  G11C11/5621 ,  G11C11/5628 ,  G11C16/102 ,  G11C16/105 ,  G11C16/20 ,  G11C29/00 ,  G11C29/76 ,  G11C2211/5641

摘要： A non-volatile memory is constituted from a set of memory planes, each having its own set of read/write circuits so that the memory planes can operate in parallel. The memory is further organized into erasable blocks, each for storing a logical group of logical units of data. In updating a logical unit, all versions of a logical unit are maintained in the same plane as the original. Preferably, all versions of a logical unit are aligned within a plane so that they are all serviced by the same set of sensing circuits. In a subsequent garbage collection operation, the latest version of the logical unit need not be retrieved from a different plane or a different set of sensing circuits, otherwise resulting in reduced performance. In one embodiment, any gaps left after alignment are padded by copying latest versions of logical units in sequential order thereto.

摘要翻译： 非易失性存储器由一组存储器平面构成，每个存储器平面具有其自己的一组读/写电路，使得存储器平面可以并行操作。 存储器被进一步组织成可擦除块，每个块用于存储数据的逻辑单元的逻辑组。 在更新逻辑单元时，逻辑单元的所有版本都保持在与原始单元相同的平面中。 优选地，逻辑单元的所有版本在平面内对准，使得它们都由相同的一组感测电路服务。 在随后的垃圾回收操作中，不需要从不同的平面或不同的感测电路组检索最新版本的逻辑单元，否则导致性能降低。 在一个实施例中，通过按照顺序复制最新版本的逻辑单元来填补对齐之后留下的任何间隙。

公开(公告)号：US20050144360A1

公开(公告)日：2005-06-30

申请号：US10750155

申请日：2003-12-30

申请人： Alan Bennett ,  Alan Bryce ,  Sergey Gorobets ,  Alan Sinclair ,  Peter Smith

发明人： Alan Bennett ,  Alan Bryce ,  Sergey Gorobets ,  Alan Sinclair ,  Peter Smith

IPC分类号： G06F11/20 ,  G06F12/02 ,  G11C7/00 ,  G11C11/56 ,  G11C16/10 ,  G11C16/34 ,  G11C29/00 ,  G06F12/00 ,  G06F12/08

CPC分类号： G06F11/1666 ,  G06F11/1072 ,  G06F11/141 ,  G06F11/1415 ,  G06F11/1658 ,  G06F12/0246 ,  G06F2212/7202 ,  G06F2212/7203 ,  G06F2212/7205 ,  G06F2212/7208 ,  G11C11/5621 ,  G11C11/5628 ,  G11C16/102 ,  G11C16/105 ,  G11C16/20 ,  G11C29/00 ,  G11C29/76 ,  G11C2211/5641

摘要： A non-volatile memory system is organized in physical groups of physical memory locations. Each physical group (metablock) is erasable as a unit and can be used to store a logical group of data. A memory management system allows for update of a logical group of data by allocating a metablock dedicated to recording the update data of the logical group. The update metablock records update data in the order received and has no restriction on whether the recording is in the correct logical order as originally stored (sequential) or not (chaotic). Eventually the update metablock is closed to further recording. One of several processes will take place, but will ultimately end up with a fully filled metablock in the correct order which replaces the original metablock. In the chaotic case, directory data is maintained in the non-volatile memory in a manner that is conducive to frequent updates. The system supports multiple logical groups being updated concurrently.

摘要翻译： 非易失性存储器系统被组织在物理存储器位置的物理组中。 每个物理组（元区块）作为一个单元是可擦除的，可用于存储一组逻辑数据。 存储器管理系统允许通过分配专用于记录逻辑组的更新数据的元区块来更新逻辑数据组。 更新元区块以所接收的顺序记录更新数据，并且对于是否按照原始存储（顺序）或不是混乱的顺序，记录是否处于正确的逻辑顺序中是没有限制的。 最终，更新元区块被关闭以进一步录制。 几个进程之一将发生，但最终将以完全填充的元区块以正确的顺序取代原来的元区块。 在混乱的情况下，目录数据以有利于频繁更新的方式保存在非易失性存储器中。 系统支持同时更新的多个逻辑组。

公开(公告)号：US20070113030A1

公开(公告)日：2007-05-17

申请号：US11273774

申请日：2005-11-14

申请人： Alan Bennett ,  Alan Bryce ,  Sergey Gorobets

发明人： Alan Bennett ,  Alan Bryce ,  Sergey Gorobets

IPC分类号： G06F13/00 ,  G06F12/00

CPC分类号： G11C16/16 ,  G06F12/0246 ,  G06F2212/7205

摘要： The present invention presents a number of improvements for managing erase processes in non-volatile memory. Such memory systems typically manage the memory by logically organize the basic unit of physical erase (erase block) into composite logical groupings (meta-blocks or logical group), where an erase block generally consists of a number of sectors. When an erase command is received, the specified sectors are checked against the memory system's control data. If the specified sectors span any full logical grouping, the full logical groupings can each be treated a whole and erased according to one process (such as performing a true, physical erase), while other sectors are “logically” erased at the sector level by standard techniques.

摘要翻译： 本发明提出了用于管理非易失性存储器中的擦除处理的许多改进。 这样的存储器系统通常通过将物理擦除的基本单元（擦除块）逻辑地组织到复合逻辑分组（元块或逻辑组）中来管理存储器，其中擦除块通常由多个扇区组成。 当接收到擦除命令时，根据存储器系统的控制数据检查指定的扇区。 如果指定的扇区跨越任何完整的逻辑分组，则可以根据一个进程（例如执行真实的物理擦除）将完整的逻辑分组视为整体并被擦除，而其他扇区在扇区级别被“逻辑”地擦除 标准技术。

公开(公告)号：US20070113029A1

公开(公告)日：2007-05-17

申请号：US11273773

申请日：2005-11-14

申请人： Alan Bennett ,  Alan Bryce ,  Sergey Gorobets

发明人： Alan Bennett ,  Alan Bryce ,  Sergey Gorobets

IPC分类号： G06F13/00 ,  G06F12/00

CPC分类号： G06F12/0246 ,  G06F2212/7205

摘要： The present invention presents a number of improvements for managing erase processes in non-volatile memory. Such memory systems typically manage the memory by logically organize the basic unit of physical erase (erase block) into composite logical groupings (meta-blocks or logical group), where an erase block generally consists of a number of sectors. When an erase command is received, the specified sectors are checked against the memory system's control data. If the specified sectors span any full logical grouping, the full logical groupings can each be treated a whole and erased according to one process (such as performing a true, physical erase), while other sectors are “logically” erased at the sector level by standard techniques.

摘要翻译： 本发明提出了用于管理非易失性存储器中的擦除处理的许多改进。 这样的存储器系统通常通过将物理擦除的基本单元（擦除块）逻辑地组织到复合逻辑分组（元块或逻辑组）中来管理存储器，其中擦除块通常由多个扇区组成。 当接收到擦除命令时，根据存储器系统的控制数据检查指定的扇区。 如果指定的扇区跨越任何完整的逻辑分组，则可以根据一个进程（例如执行真实的物理擦除）将完整的逻辑分组视为整体并被擦除，而其他扇区在扇区级别被“逻辑”地擦除 标准技术。

公开(公告)号：US20080091872A1

公开(公告)日：2008-04-17

申请号：US11949618

申请日：2007-12-03

申请人： Alan Bennett ,  Sergey Gorobets ,  Andrew Tomlin ,  Charles Schroter

发明人： Alan Bennett ,  Sergey Gorobets ,  Andrew Tomlin ,  Charles Schroter

IPC分类号： G06F12/02

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。