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31. 发明授权

US08103841B2 Non-volatile memory and method with non-sequential update block management 有权
标题翻译：非易失性存储器和非顺序更新块管理方法
公开(公告)号：US08103841B2
公开(公告)日：2012-01-24
申请号：US12239489
申请日：2008-09-26
申请人： Alan Welsh Sinclair , Sergey Anatolievich Gorobets , Alan David Bennett , Peter John Smith
发明人： Alan Welsh Sinclair , Sergey Anatolievich Gorobets , Alan David Bennett , Peter John Smith
IPC分类号： G06F12/16
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 nonvolatile 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。

32. 发明授权

US08040744B2 Spare block management of non-volatile memories 有权
标题翻译：非易失性存储器的备件管理
公开(公告)号：US08040744B2
公开(公告)日：2011-10-18
申请号：US12348825
申请日：2009-01-05
申请人： Sergey Anatolievich Gorobets , Alan David Bennett , Eugene Zilberman
发明人： Sergey Anatolievich Gorobets , Alan David Bennett , Eugene Zilberman
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。

33. 发明申请

US20100174869A1 MAPPING ADDRESS TABLE MAINTENANCE IN A MEMORY DEVICE 有权
标题翻译：映射地址表维护存储器件
公开(公告)号：US20100174869A1
公开(公告)日：2010-07-08
申请号：US12348782
申请日：2009-01-05
申请人： Sergey Anatolievich Gorobets , Alexander Paley , Eugene Zilberman , Alan David Bennett , Shai Traister
发明人： Sergey Anatolievich Gorobets , Alexander Paley , Eugene Zilberman , Alan David Bennett , Shai Traister
IPC分类号： G06F12/08 , G06F12/00 , G06F12/02 , G06F12/10
CPC分类号： G06F12/0246 , G06F12/1027 , G06F2212/1016 , G06F2212/7201 , G06F2212/7205
摘要： A method and system maintains an address table for mapping logical groups to physical addresses in a memory device. The method includes receiving a request to set an entry in the address table and selecting and flushing entries in an address table cache depending on the existence of the entry in the cache and whether the cache meets a flushing threshold criteria. The flushed entries include less than the maximum capacity of the address table cache. The flushing threshold criteria includes whether the address table cache is full or if a page exceeds a threshold of changed entries. The address table and/or the address table cache may be stored in a non-volatile memory and/or a random access memory. Improved performance may result using this method and system due to the reduced number of write operations and time needed to partially flush the address table cache to the address table.
摘要翻译：方法和系统维护用于将逻辑组映射到存储器设备中的物理地址的地址表。该方法包括接收在地址表中设置条目的请求，并根据高速缓存中的条目的存在以及高速缓存是否满足冲洗阈值标准来选择和刷新地址表高速缓存中的条目。刷新的条目包括小于地址表缓存的最大容量。刷新阈值标准包括地址表缓存是否满或页面是否超过已更改条目的阈值。地址表和/或地址表缓存可以存储在非易失性存储器和/或随机存取存储器中。由于将地址表缓存部分刷新到地址表所需的写入操作次数和时间减少，因此可能会导致使用此方法和系统的性能提高。

34. 发明申请

US20100174847A1 Non-Volatile Memory and Method With Write Cache Partition Management Methods 有权
标题翻译：非易失性存储器和写缓存分区管理方法
公开(公告)号：US20100174847A1
公开(公告)日：2010-07-08
申请号：US12348899
申请日：2009-01-05
申请人： Alexander Paley , Sergey Anatolievich Gorobets , Eugene Zilberman , Alan David Bennett , Shai Traister , Andrew Tomlin , William S. Wu , Bum Suck So
发明人： Alexander Paley , Sergey Anatolievich Gorobets , Eugene Zilberman , Alan David Bennett , Shai Traister , Andrew Tomlin , William S. Wu , Bum Suck So
IPC分类号： G06F12/02
CPC分类号： G06F12/0246 , G06F12/0804 , G06F12/0866 , G06F2212/224 , G06F2212/7203 , G06F2212/7204
摘要： A portion of a nonvolatile memory is partitioned from a main multi-level memory array to operate as a cache. The cache memory is configured to store at less capacity per memory cell and finer granularity of write units compared to the main memory. In a block-oriented memory architecture, the cache has multiple functions, not merely to improve access speed, but is an integral part of a sequential update block system. The cache memory has a capacity dynamically increased by allocation of blocks from the main memory in response to a demand to increase the capacity. Preferably, a block with an endurance count higher than average is allocated. The logical addresses of data are partitioned into zones to limit the size of the indices for the cache.
摘要翻译：将非易失性存储器的一部分从主多层存储器阵列分区以作为高速缓存进行操作。缓存存储器被配置为以比每个存储器单元更少的容量存储和与主存储器相比写入单元的更细粒度。在面向块的存储器架构中，缓存具有多个功能，而不仅仅是提高访问速度，而是顺序更新块系统的组成部分。响应于增加容量的需求，高速缓冲存储器具有通过从主存储器分配块而动态增加的容量。优选地，分配耐力计数高于平均值的块。数据的逻辑地址被划分为区域以限制高速缓存的索引的大小。

35. 发明申请

US20090265508A1 Scheduling of Housekeeping Operations in Flash Memory Systems 有权
标题翻译：闪存系统中的家务操作计划
公开(公告)号：US20090265508A1
公开(公告)日：2009-10-22
申请号：US12493500
申请日：2009-06-29
申请人： Alan David Bennett , Sergey Anatolievich Gorobets , Andrew Tomlin , Charles Schroter
发明人： Alan David Bennett , Sergey Anatolievich Gorobets , Andrew Tomlin , Charles Schroter
IPC分类号： G06F12/02 , G06F12/00
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。

36. 发明授权

US07386655B2 Non-volatile memory and method with improved indexing for scratch pad and update blocks 有权
标题翻译：非易失性存储器和方法，改进了临时数据库和更新块的索引
公开(公告)号：US07386655B2
公开(公告)日：2008-06-10
申请号：US11192386
申请日：2005-07-27
申请人： Sergey Anatolievich Gorobets , Peter John Smith , Alan David Bennett
发明人： Sergey Anatolievich Gorobets , Peter John Smith , Alan David 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。

37. 发明授权

US07315917B2 Scheduling of housekeeping operations in flash memory systems 有权
标题翻译：安排闪存系统中的内务管理操作
公开(公告)号：US07315917B2
公开(公告)日：2008-01-01
申请号：US11312985
申请日：2005-12-19
申请人： Alan David Bennett , Sergey Anatolievich Gorobets , Andrew Tomlin , Charles Schroter
发明人： Alan David Bennett , Sergey Anatolievich Gorobets , Andrew Tomlin , Charles Schroter
IPC分类号： G06F12/00 , G06F13/00
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。

38. 发明授权

US07315916B2 Scratch pad block 有权
标题翻译：划痕块块
公开(公告)号：US07315916B2
公开(公告)日：2008-01-01
申请号：US11016285
申请日：2004-12-16
申请人： Alan David Bennett , Sergey Anatolievich Gorobets
发明人： Alan David Bennett , Sergey Anatolievich Gorobets
IPC分类号： G06F12/00
CPC分类号： G06F12/0246 , G06F2212/7203
摘要： In a memory array having a minimum unit of erase of a block, a scratch pad block is used to store data that is later written to another block. The data may be written to the scratch pad block with a low degree of parallelism and later written to another location with a high degree of parallelism so that it is stored with high density. Data may be temporarily stored in the scratch pad block until it can be more efficiently stored elsewhere. This may be when some other data is received. Unrelated data may be stored in the same page of a scratch pad block.
摘要翻译：在具有块的最小擦除单位的存储器阵列中，使用便笺块块来存储稍后写入另一块的数据。数据可以以低度的平行度写入到便签块块中，并且随后以高度并行度写入另一位置，使得其以高密度存储。数据可以临时存储在便签区块中，直到其可以更有效地存储在别处。这可能是在收到某些其他数据时。不相关的数据可能存储在暂存区块的同一页中。

39. 发明申请

US20140281132A1 METHOD AND SYSTEM FOR RAM CACHE COALESCING 审中-公开
标题翻译： RAM缓存的方法和系统
公开(公告)号：US20140281132A1
公开(公告)日：2014-09-18
申请号：US13838582
申请日：2013-03-15
申请人： Marielle Bundukin , King Ying Ng , Steven T. Sprouse , William Wu , Sergey Anatolievich Gorobets , Liam Parker , Alan David Bennett
发明人： Marielle Bundukin , King Ying Ng , Steven T. Sprouse , William Wu , Sergey Anatolievich Gorobets , Liam Parker , Alan David Bennett
IPC分类号： G06F12/02
CPC分类号： G06F12/0246 , G06F2212/7203
摘要： A system and method for coalescing data fragments in a volatile memory such as RAM cache is disclosed. The method may include storing multiple data fragments in volatile memory and initiating a single write operation to flash memory only when a predetermined number of data fragments have been received and aggregated into a single flash write command. The method may also include generating a binary cache index delta that aggregates in a single entry all of the binary cache index information for the aggregated data fragments. A memory system having a non-volatile memory, a volatile memory sized to at least store a number of data fragments equal to a physical page managed in a binary cache of the non-volatile memory, and a controller is disclosed. The controller may be configured to execute the method of coalescing data fragments into a single flash write operation described above.
摘要翻译：公开了一种用于在诸如RAM缓存的易失性存储器中聚合数据片段的系统和方法。该方法可以包括将多个数据片段存储在易失性存储器中，并且仅当已经接收到预定数量的数据片段并将其聚合成单个闪速写入命令时，才将闪存的单个写入操作开始。该方法还可以包括生成在单个条目中聚合用于聚合数据片段的所有二进制缓存索引信息的二进制缓存索引增量。具有非易失性存储器的存储器系统，被设计成至少存储与非易失性存储器的二进制高速缓存中管理的物理页面相等的数据片段数量的易失性存储器以及控制器。控制器可以被配置为执行将数据片段聚合成上述单个闪存写入操作的方法。

40. 发明授权

US08364883B2 Scheduling of housekeeping operations in flash memory systems 有权
公开(公告)号：US08364883B2
公开(公告)日：2013-01-29
申请号：US12493500
申请日：2009-06-29
申请人： Alan David Bennett , Sergey Anatolievich Gorobets , Andrew Tomlin , Charles Schroter
发明人： Alan David Bennett , Sergey Anatolievich Gorobets , Andrew Tomlin , Charles Schroter
IPC分类号： G06F12/00 , G06F13/00
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.

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