公开(公告)号：US09418712B1

公开(公告)日：2016-08-16

申请号：US14741045

申请日：2015-06-16

Applicant: SanDisk Technologies Inc.

Inventor： Eran Erez

IPC: G11C5/00 ,  G11C11/34 ,  G11C5/14 ,  G11C8/00

CPC classification number: G06F3/0659 ,  G06F1/26 ,  G06F1/28 ,  G06F1/3221 ,  G06F1/3225 ,  G06F1/3268 ,  G06F1/3275 ,  G06F3/0604 ,  G06F3/0688 ,  G11C16/10 ,  G11C16/30

Abstract: A memory system and method for power management are disclosed. In one embodiment, a memory system is provided comprising at least one memory die, a sensor configured to sense an average amount of power consumed by the memory system over a time period, and a controller. The controller is configured to maintain a token bucket that indicates an amount of power currently available for memory operations in the at least one memory die and is further configured to reduce a number of tokens in the token bucket by an amount of power consumed over the time period as indicated by the average amount of power sensed by the sensor over the time period. Other embodiments are disclosed.

Abstract translation: 公开了用于电源管理的存储器系统和方法。 在一个实施例中，提供了存储器系统，其包括至少一个存储器管芯，被配置为感测存储器系统在一段时间内消耗的平均功率量的传感器和控制器。 所述控制器被配置为维护指示当前可用于所述至少一个存储器管芯中的存储器操作的功率量的令牌桶，并且还被配置为将所述令牌桶中的令牌数量减少所述时间消耗的功率量 由传感器在该时间段内感测到的平均功率量表示。 公开了其他实施例。

公开(公告)号：US09401184B1

公开(公告)日：2016-07-26

申请号：US14741075

申请日：2015-06-16

Applicant: SanDisk Technologies Inc.

Inventor： Eran Erez

IPC: G11C5/14

CPC classification number: G11C5/14 ,  G06F1/3225 ,  G06F1/3275 ,  G11C16/30

Abstract: A memory system and method for power management are disclosed. In one embodiment, a variable credit value that indicates an amount of power currently available for memory operations in the memory system, wherein for each update cycle of the variable credit value, the variable credit value is reduced by a computed consumed energy value for that update cycle; receives a request to perform a memory operation; determines if the variable credit value is greater than a minimum value required to perform the memory operation; and grants the request to perform the memory operation only if it is determined that the variable credit value is greater than the minimum value. Other embodiments are disclosed.

Abstract translation: 公开了用于电源管理的存储器系统和方法。 在一个实施例中，指示当前可用于存储器系统中的存储器操作的功率量的可变信用值，其中对于可变信用值的每个更新周期，可变信用值被减少用于该更新的计算的消耗能量值 周期; 接收执行内存操作的请求; 确定可变信用值是否大于执行存储器操作所需的最小值; 并且仅在确定可变信用值大于最小值时才授予执行存储器操作的请求。 公开了其他实施例。

公开(公告)号：US20160162219A1

公开(公告)日：2016-06-09

申请号：US14565125

申请日：2014-12-09

Applicant: SanDisk Technologies Inc.

Inventor： Eran Erez

IPC: G06F3/06

CPC classification number: G06F3/0653 ,  G06F1/206 ,  G06F3/0617 ,  G06F3/0688 ,  G06F13/1668 ,  G11C7/04 ,  G11C8/12 ,  G11C16/08

Abstract: A memory system and method are provided for selecting memory dies for memory access operations based on memory die temperatures. The memory system has a plurality of memory dies, where each memory die has its own temperature sensor. In one embodiment, the memory system selects which memory dies to perform memory access operations in based on the temperatures of the memory dies. In another embodiment, a controller of the memory system selects which memory dies to thermal throttle memory access operations in based on the detected temperatures. In yet another embodiment, a temperature-aware media management layer module of the memory l system routes a memory access operation from a first memory die to a second memory die based on the temperatures of the memory dies.

Abstract translation: 提供了一种存储器系统和方法，用于基于存储器模具温度来选择用于存储器存取操作的存储器管芯。 存储器系统具有多个存储器管芯，其中每个存储器管芯具有其自己的温度传感器。 在一个实施例中，存储器系统基于存储器管芯的温度选择哪个存储器管芯执行存储器访问操作。 在另一个实施例中，存储器系统的控制器基于检测到的温度来选择哪个存储器模具来热量控制存储器访问操作。 在另一个实施例中，存储器1系统的温度感知媒体管理层模块基于存储器管芯的温度将存储器访问操作从第一存储器管芯路由到第二存储器管芯。

公开(公告)号：US09658790B2

公开(公告)日：2017-05-23

申请号：US14616376

申请日：2015-02-06

Applicant: SanDisk Technologies Inc.

Inventor： Eran Erez ,  Alex Mostovoy

IPC: G06F12/00 ,  G06F3/06 ,  G06F13/18

CPC classification number: G06F3/0625 ,  G06F3/0619 ,  G06F3/0655 ,  G06F3/0659 ,  G06F3/0688 ,  G06F13/18 ,  Y02D10/14

Abstract: A memory system and method for power-based operation scheduling are provided. In one embodiment, a memory system begins to perform a plurality of operations in an order in which they are stored in a queue. Before performing a next operation in the queue, the memory system determines whether the power consumed by performing the next operation would exceed a maximum power threshold. In response to determining that the power consumed would exceed the maximum power threshold, the memory system selects an operation out of order from the queue to perform instead, so the maximum power threshold would not be exceeded. Other embodiments are provided.

公开(公告)号：US20170060461A1

公开(公告)日：2017-03-02

申请号：US14834092

申请日：2015-08-24

Applicant: SanDisk Technologies Inc.

Inventor： Eran Erez ,  Jonathan H. Hsu ,  Ken Q. Nguyen

IPC: G06F3/06 ,  G06F1/32

CPC classification number: G06F3/0625 ,  G06F1/3268 ,  G06F1/3275 ,  G06F1/3296 ,  G06F3/064 ,  G06F3/0688 ,  Y02B70/12 ,  Y02B70/123 ,  Y02D10/14 ,  Y02D10/154 ,  Y02D10/172

Abstract: A memory system and method for reducing peak current consumption. In one embodiment, a method is provided that is performed in a memory system comprising a memory with a plurality of blocks, wherein each block has a peak current consumption. In this method, a plurality of metablocks is created, wherein each metablock is created by grouping together blocks with complementary peak current consumption. Next, the metablocks are programmed. Because each of the metablocks has blocks with complementary peak current consumption, each of the metablocks has similar peak current consumption when programmed. Other embodiments are provided.

Abstract translation: 一种用于降低峰值电流消耗的存储器系统和方法。 在一个实施例中，提供了一种在包括具有多个块的存储器的存储器系统中执行的方法，其中每个块具有峰值电流消耗。 在该方法中，创建多个元区块，其中通过将具有互补峰值电流消耗的块分组在一起来创建每个元区块。 接下来，元区块被编程。 因为每个元区块都具有互补峰值电流消耗的块，当编程时，每个元区块具有类似的峰值电流消耗。 提供其他实施例。

公开(公告)号：US09329797B2

公开(公告)日：2016-05-03

申请号：US14144202

申请日：2013-12-30

Applicant: SanDisk Technologies Inc.

Inventor： Neil Richard Darragh ,  Eran Erez ,  Sergey Anatolievich Gorobets

IPC: G11C16/04 ,  G06F3/06 ,  G11C16/16 ,  G11C16/34

CPC classification number: G06F3/0653 ,  G06F3/0616 ,  G06F3/0679 ,  G06F2212/7211 ,  G11C16/16 ,  G11C16/3495

Abstract: A method and system are disclosed for improved block erase cycle life prediction and block management in a non-volatile memory. The method includes the storage device tracking information relating to a first erase cycle count at which the block erase time exceeded a predetermined threshold relative to a first erase cycle at which this occurred in other blocks. Blocks having a later relative erase cycle at which the erase time threshold is exceeded are assumed to have a greater erase cycle life than those that need to exceed the erase time threshold at an earlier erase cycle. This information is used to adjust wear leveling in the form of free block selection, garbage collection block selection and other block management processes. Alternatively or in combination, the predicted erase cycle life information is used to adjust program and/or erase parameters such as erase voltage and time.

Abstract translation: 公开了用于在非易失性存储器中改进块擦除周期寿命预测和块管理的方法和系统。 该方法包括与第一擦除周期计数有关的存储装置跟踪信息，在该第一擦除周期计数，块擦除时间超过预定阈值，相对于其它块中发生的第一擦除周期。 具有擦除时间阈值超过的较后相对擦除周期的块假设具有比在较早擦除周期期间需要超过擦除时间阈值的擦除周期寿命更长的擦除周期寿命。 该信息用于以自由块选择，垃圾收集块选择和其他块管理过程的形式来调整磨损均衡。 或者或组合地，预测的擦除周期寿命信息用于调整诸如擦除电压和时间的程序和/或擦除参数。

公开(公告)号：US20160077961A1

公开(公告)日：2016-03-17

申请号：US14489179

申请日：2014-09-17

Applicant: SanDisk Technologies Inc.

Inventor： Eran Erez ,  Cynthia Hsu

IPC: G06F12/02 ,  G11C16/30 ,  G11C16/04

CPC classification number: G06F12/0246 ,  G06F1/3275 ,  G06F3/0625 ,  G06F3/0659 ,  G06F3/0679 ,  G06F3/0688 ,  G06F2212/7201 ,  G11C16/04 ,  G11C16/30 ,  Y02D10/14 ,  Y02D10/154

Abstract: A storage module and method for scheduling memory operations for peak-power management and balancing are provided. In one embodiment, a storage module maintains a count of time slots over a period of time. The period of time corresponds to an amount of time between periodic power peaks of a memory operation. For each time slot, the storage module determines whether to commence a memory operation on one or more of the plurality of memory dies based on whether a power peak generated in the time slot by the memory operation would exceed a power threshold allowed for the time slot. Other embodiments are provided.

Abstract translation: 提供了一种用于调度用于峰值功率管理和平衡的存储器操作的存储模块和方法。 在一个实施例中，存储模块在一段时间内保持时隙的计数。 该时间段对应于存储器操作的周期功率峰值之间的时间量。 对于每个时隙，存储模块基于在存储器操作中在时隙中生成的功率峰值是否将超过时隙允许的功率阈值来确定是否对多个存储器管芯中的一个或多个存储器管芯开始存储器操作 。 提供其他实施例。

公开(公告)号：US20140082406A1

公开(公告)日：2014-03-20

申请号：US13622235

申请日：2012-09-18

Applicant: SANDISK TECHNOLOGIES INC.

Inventor： Eran Erez

IPC: G06F11/07

CPC classification number: G11C29/12005 ,  G06F1/30 ,  G06F11/1441 ,  G06F11/3058 ,  G11C5/14 ,  G11C16/30 ,  G11C16/3418 ,  G11C29/021 ,  G11C2029/0409

Abstract: A memory system may enact emergency activities, such as preventing a write abort, by identifying when a power loss occurs at the earliest time possible. The prediction of a power loss during the process of programming a page, but before all power is lost may allow for the memory to initiate emergency activities. A power loss prediction mechanism may utilize a data link lost signal to trigger data protection. The data link lost signal may indicate that the data connection between the memory and a host has been lost. The signal indicating a data link loss may precede the actual detection of a power loss so that data protection can be implemented quicker.

Abstract translation: 记忆系统可以通过在最早的时间识别何时发生功率损失来制定诸如防止写入中止的紧急活动。 在编程页面的过程中，但在所有电源丢失之前对功耗的预测可能允许内存启动紧急活动。 功率损耗预测机制可以利用数据链路丢失信号来触发数据保护。 数据链路丢失信号可能表示存储器和主机之间的数据连接已经丢失。 指示数据链路丢失的信号可以在实际检测到功率损耗之前，从而可以更快地实现数据保护。

公开(公告)号：US09658789B2

公开(公告)日：2017-05-23

申请号：US14452156

申请日：2014-08-05

Applicant: SanDisk Technologies Inc.

Inventor： Eran Erez

IPC: G06F1/32 ,  G06F3/06

CPC classification number: G06F3/0625 ,  G06F1/3225 ,  G06F1/3275 ,  G06F3/0653 ,  G06F3/0658 ,  G06F3/0659 ,  G06F3/0679 ,  G06F3/0688 ,  Y02D10/154

Abstract: A storage module and method are provided for optimized power utilization. In one embodiment, a storage module is provided comprising a storage controller and a plurality of memory dies in communication with the storage controller. The storage controller determines if sufficient power is available to perform an operation on one of the memory dies. In response to determining that sufficient power is not available to perform the operation on one of the memory dies, the storage controller determines if suspending an in-progress operation on another one of the memory dies would provide enough power to perform the operation. In response to determining that suspending the in-progress operation would provide enough power to perform the operation, the storage controller suspends the in-progress operation and performs the operation. Instead of suspending an in-progress operation, the storage controller can instead use a reduced power version of the operation or the in-progress operation.

公开(公告)号：US20160372160A1

公开(公告)日：2016-12-22

申请号：US14757780

申请日：2015-12-23

Applicant: SanDisk Technologies Inc.

Inventor： Joshua Lehmann ,  Gadi Vishne ,  David Haliva ,  Eran Erez

IPC: G11C5/14

CPC classification number: G11C5/14 ,  G06F1/329 ,  G11C16/30 ,  Y02D10/24

Abstract: A memory system and method for power management are disclosed. In one embodiment, a memory system maintains a variable credit value indicating an amount of power currently available for memory operations in the memory system, the variable credit value having an upper limit that reflects a maximum power limit for the memory system. The memory system receives a command to perform a memory operation, wherein a plurality of resources are required to perform the memory operation, each resource being associated with a credit value. Prior to performing the memory operation, the memory system checks whether the variable credit value indicates that there is sufficient power available to perform the memory operation. Resource(s) required to perform the memory operation that are already being used in the memory system are not counted against the variable credit value.

Abstract translation: 公开了用于电源管理的存储器系统和方法。 在一个实施例中，存储器系统保持指示当前可用于存储器系统中的存储器操作的功率量的可变信用值，可变信用值具有反映存储器系统的最大功率限制的上限。 存储器系统接收执行存储器操作的命令，其中需要多个资源来执行存储器操作，每个资源与信用值相关联。 在执行存储器操作之前，存储器系统检查可变信用值是否表明有足够的可用电力来执行存储器操作。 执行内存系统中已经使用的内存操作所需的资源不会计入可变的信用值。