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1. 发明申请

WO2012012085A2 PRE-EMPTIVE GARBAGE COLLECTION OF MEMORY BLOCKS 审中-公开
标题翻译：预先收集的记忆块
公开(公告)号：WO2012012085A2
公开(公告)日：2012-01-26
申请号：PCT/US2011/041647
申请日：2011-06-23
申请人： SANDISK TECHNOLOGIES INC. , WU, William , TRAISTER, Shai , HUANG, Jianmin , HUTCHISON, Neil, David , SPROUSE, Steven
发明人： WU, William , TRAISTER, Shai , HUANG, Jianmin , HUTCHISON, Neil, David , SPROUSE, Steven
IPC分类号： G06F12/02
CPC分类号： G06F12/0246 , G06F12/0253
摘要： A method and system pre-emptively perform garbage collection operations of a forced amount on update blocks in a memory device. The amount of garbage collection needed by a certain data write is monitored and adjusted to match the forced amount if necessary. Update blocks may be selected on the basis of their recent usage or the amount of garbage collection required. Another method and system may store control information about update blocks in a temporary storage area so that a greater number of update blocks are utilized. The sequential write performance measured by the Speed Class test may be optimized by using this method and system.
摘要翻译：一种方法和系统在存储器设备中的更新块上优先地执行强制量的垃圾回收操作。监视和调整某些数据写入所需的垃圾回收量，以便在必要时与强制量匹配。可以基于它们最近的使用或所需的垃圾收集量来选择更新块。另一种方法和系统可以将关于更新块的控制信息存储在临时存储区域中，以便利用更多数量的更新块。通过速度等级测试测量的顺序写入性能可以通过使用此方法和系统进行优化。

2. 发明申请

WO2012012150A1 GARBAGE COLLECTION OF MEMORY BLOCKS USING VOLATILE MEMORY 审中-公开
标题翻译：使用挥发性内存收集记忆块
公开(公告)号：WO2012012150A1
公开(公告)日：2012-01-26
申请号：PCT/US2011/042274
申请日：2011-06-29
申请人： SANDISK TECHNOLOGIES INC. , HUTCHISON, Neil, David , SPROUSE, Steven
发明人： HUTCHISON, Neil, David , SPROUSE, Steven
IPC分类号： G06F12/02
CPC分类号： G06F12/0246
摘要： A method and system for performing garbage collection operations on update blocks in a memory device using volatile memory is disclosed. When performing a garbage collection operation, a first part of the data related to the garbage collection operation is written to a volatile memory in the memory device, and a second part of the data related to the garbage collection operation is written to a non-volatile memory in the memory device. The first part of the data that is written to the volatile memory (such as a random access memory) may comprise control information (such as mapping information of the logical addressable unit to a physical metablock). The second part of the data related to the garbage collection that is written to the non-volatile memory (such as a flash memory) may comprise the consolidated data in the update block.
摘要翻译：公开了一种使用易失性存储器对存储器件中的更新块执行垃圾收集操作的方法和系统。当执行垃圾收集操作时，将与垃圾收集操作相关的数据的第一部分写入存储器件中的易失性存储器，并且将与垃圾回收操作相关的数据的第二部分写入非易失性存储器存储器中的内存。写入易失性存储器（例如随机存取存储器）的数据的第一部分可以包括控制信息（例如逻辑可寻址单元映射到物理元区块的信息）。写入非易失性存储器（例如闪速存储器）的与垃圾收集相关的数据的第二部分可以包括更新块中的合并数据。

3. 发明申请

WO2011075597A1 DATA TRANSFER FLOWS FOR ON-CHIP FOLDING 审中-公开
标题翻译：数据传输流程用于片上折叠
公开(公告)号：WO2011075597A1
公开(公告)日：2011-06-23
申请号：PCT/US2010/060855
申请日：2010-12-16
申请人： SANDISK CORPORATION , HUANG, Jianmin , AVILA, Chris , GAVENS, Lee M. , GOROBETS, Sergey Anatolievich , HUTCHISON, Neil David
发明人： HUANG, Jianmin , AVILA, Chris , GAVENS, Lee M. , GOROBETS, Sergey Anatolievich , HUTCHISON, Neil David
IPC分类号： G11C11/56 , G11C16/10 , G06F12/02
CPC分类号： G11C11/5628 , G06F12/0246 , G06F2212/7203 , G11C7/1042 , G11C16/10 , G11C2211/5641 , G11C2211/5643
摘要： A memory system and methods of its operation are presented. The memory system includes a volatile buffer memory and a non-volatile memory circuit, where the non-volatile memory circuit has a first section, where data is stored in a binary format, and a second section, where data is stored in a multi-state format. When writing data to the non-volatile memory, the data is received from a host, stored in the buffer memory, transferred from the buffer memory to into read/write registers of the non-volatile memory circuit, and then written from the read/write registers to the first section of the non-volatile memory circuit using a binary write operation. Portions of the data and then subsequently folded from the first section of the non-volatile memory to the second section of the non-volatile memory, where a folding operation includes reading the portions of the data from multiple locations in the first section into the read/write registers and performing a multi-state programming operation of the potions of the data from the read/write registers into a location the second section of the non-volatile memory. The multi-state programming operations include a first phase and a second phase and one or more of the binary write operations are performed between the phases of the multi-state programming operations.
摘要翻译：介绍了一种存储系统及其操作方法。存储器系统包括易失性缓冲存储器和非易失性存储器电路，其中非易失性存储器电路具有数据以二进制格式存储的第一部分，以及第二部分，状态格式。当将数据写入非易失性存储器时，将数据从存储在缓冲存储器中的主机接收，从缓冲存储器传送到非易失性存储器电路的读/写寄存器，然后从读/ 使用二进制写操作将寄存器写入非易失性存储器电路的第一部分。然后将数据的部分随后从非易失性存储器的第一部分折叠到非易失性存储器的第二部分，其中折叠操作包括将第一部分中的多个位置的数据的部分读入读取 /写入寄存器，并且将数据从读/写寄存器执行到多状态编程操作到非易失性存储器的第二部分的位置。多状态编程操作包括第一阶段和第二阶段，并且在多状态编程操作的阶段之间执行二进制写入操作中的一个或多个。

4. 发明申请

WO2011075594A1 NON-VOLATILE MEMORY WITH MULTI-GEAR CONTROL USING ON-CHIP FOLDING OF DATA 审中-公开
标题翻译：使用片上数据折叠的多种控制的非易失性存储器
公开(公告)号：WO2011075594A1
公开(公告)日：2011-06-23
申请号：PCT/US2010/060844
申请日：2010-12-16
申请人： SANDISK CORPORATION , HUANG, Jianmin , AVILA, Chris , GAVENS, Lee M. , SPROUSE, Steven T. , GOROBETS, Sergey Anatolievich , HUTCHISON, Neil David
发明人： HUANG, Jianmin , AVILA, Chris , GAVENS, Lee M. , SPROUSE, Steven T. , GOROBETS, Sergey Anatolievich , HUTCHISON, Neil David
IPC分类号： G11C16/10 , G11C11/56
CPC分类号： G06F3/0608 , G06F3/0611 , G06F3/064 , G06F3/0679 , G06F12/0246 , G06F2212/7202 , G06F2212/7203 , G11C7/1042 , G11C11/5621 , G11C11/5628 , G11C16/0483 , G11C16/10 , G11C2211/5641 , G11C2211/5648
摘要： A memory system and methods of its operation are presented. The memory system includes a controller and a non-volatile memory circuit, where the non-volatile memory circuit has a first section, where data is stored in a binary format, and a second section, where data is stored in a multi-state format. The memory system receives data from the host and performs a binary write operation of the received data to the first section of the non-volatile memory circuit. The memory system subsequently folds portions of the data from the first section of the non-volatile memory to the second section of the non-volatile memory, wherein a folding operation includes reading the portions of the data from the first section rewriting it into the second section of the non-volatile memory using a multi-state programming operation. The controller determines to operate the memory system according to one of multiple modes. The modes include a first mode, where the binary write operations to the first section of the memory are interleaved with folding operations at a first rate, and a second mode, where the number of folding operations relative to the number of the binary write operations to the first section of the memory are performed at a higher than in the first mode. The memory system then operates according to determined mode. The memory system may also include a third mode, where folding operations are background operations executed when the memory system is not receiving data from the host.
摘要翻译：介绍了一种存储系统及其操作方法。存储器系统包括控制器和非易失性存储器电路，其中非易失性存储器电路具有数据以二进制格式存储的第一部分和第二部分，其中数据以多状态格式存储。存储器系统从主机接收数据，并且对所述非易失性存储器电路的第一部分执行所接收数据的二进制写操作。存储系统随后将数据的部分从非易失性存储器的第一部分折叠到非易失性存储器的第二部分，其中折叠操作包括从第一部分读取数据的部分，将数据重写成第二部分使用多状态编程操作的非易失性存储器的一部分。控制器根据多种模式之一确定操作存储器系统。这些模式包括第一模式，其中对存储器的第一部分的二进制写入操作以第一速率进行折叠操作和第二模式，其中相对于二进制写入操作的数量的折叠操作的数量存储器的第一部分在高于第一模式下执行。然后，存储器系统根据确定的模式进行操作。存储器系统还可以包括第三模式，其中折叠操作是当存储器系统未从主机接收数据时执行的背景操作。

5. 发明申请

WO2012012085A3 PRE-EMPTIVE GARBAGE COLLECTION OF MEMORY BLOCKS 审中-公开
标题翻译：存储块的预先废除垃圾收集
公开(公告)号：WO2012012085A3
公开(公告)日：2012-03-15
申请号：PCT/US2011041647
申请日：2011-06-23
申请人： SANDISK TECHNOLOGIES INC , WU WILLIAM , TRAISTER SHAI , HUANG JIANMIN , HUTCHISON NEIL DAVID , SPROUSE STEVEN
发明人： WU WILLIAM , TRAISTER SHAI , HUANG JIANMIN , HUTCHISON NEIL DAVID , SPROUSE STEVEN
IPC分类号： G06F12/02
CPC分类号： G06F12/0246 , G06F12/0253
摘要： A method and system pre-emptively perform garbage collection operations of a forced amount on update blocks in a memory device. The amount of garbage collection needed by a certain data write is monitored and adjusted to match the forced amount if necessary. Update blocks may be selected on the basis of their recent usage or the amount of garbage collection required. Another method and system may store control information about update blocks in a temporary storage area so that a greater number of update blocks are utilized. The sequential write performance measured by the Speed Class test may be optimized by using this method and system.
摘要翻译：一种方法和系统在存储器设备中的更新块上抢先执行强制量的垃圾收集操作。监控某个数据写入所需的垃圾回收量，并根据需要进行调整以匹配强制金额。更新块可以基于其最近的使用情况或所需的垃圾收集量来选择。另一种方法和系统可以将关于更新块的控制信息存储在临时存储区中，以便使用更多数量的更新块。速度等级测试测得的顺序写入性能可以通过使用这种方法和系统来优化。

6. 发明申请

WO2008045839A1 NON-VOLATILE MEMORY WITH WORST-CASE CONTROL DATA MANAGEMENT AND METHODS THEREFOR 审中-公开
标题翻译：具有恶劣情况控制数据管理的非易失性存储器及其方法
公开(公告)号：WO2008045839A1
公开(公告)日：2008-04-17
申请号：PCT/US2007/080725
申请日：2007-10-08
申请人： SANDISK CORPORATION , BENNETT, Alan David , HUTCHISON, Neil David , GOROBETS, Sergey Anatolievich
发明人： BENNETT, Alan David , HUTCHISON, Neil David , GOROBETS, Sergey Anatolievich
IPC分类号： G11C16/10 , G06F12/02
CPC分类号： G06F12/0246 , G06F12/0292 , G06F12/0866 , G06F2212/7202 , G06F2212/7205 , G11C16/105 , G11C16/349 , G11C16/3495 , Y02D10/13
摘要： In a nonvolatile memory with a block management system, data written to blocks include host write data and also system control data for managing the blocks. When a block is full or no longer accepting data, it is closed after valid versions of the data on it are relocated to another block in a rewrite operation. An improved pre-emptive rewrite scheme prevents a worst-case situation where multiple rewrites to occur at once when they happened to be full at the same time. Particularly, the scheduling of the pre-emptive rewrites for control data is based on a number of considerations including the time required for each control block rewrite and the time available for control block rewrites based on the configuration of the update blocks for storing host data, the time required in the foreground host operation and the host write latency.
摘要翻译：在具有块管理系统的非易失性存储器中，写入块的数据包括主机写入数据以及用于管理块的系统控制数据。当块已满或不再接受数据时，在重写操作中将其上的数据的有效版本重新定位到另一个块之后，它将被关闭。改进的优先重写方案可以防止在同时发生多次重写时立即发生多次重写的最坏情况。特别地，用于控制数据的优先重写的调度基于多个考虑因素，包括基于用于存储主机数据的更新块的配置，每个控制块重写所需的时间和可用于控制块重写的时间，前台主机操作所需的时间和主机写入延迟。

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