Data storage in analog memory cells using a non-integer number of bits per cell
    11.
    发明授权
    Data storage in analog memory cells using a non-integer number of bits per cell 有权
    使用每个单元的非整数位的模拟存储单元中的数据存储

    公开(公告)号:US08862964B2

    公开(公告)日:2014-10-14

    申请号:US14147714

    申请日:2014-01-06

    Applicant: Apple Inc.

    Abstract: A method for data storage includes, in a first programming phase, storing first data in a group of analog memory cells by programming the memory cells in the group to a set of initial programming levels. In a second programming phase that is subsequent to the first programming phase, second data is stored in the group by: identifying the memory cells in the group that were programmed in the first programming phase to respective levels in a predefined partial subset of the initial programming levels; and programming only the identified memory cells with the second data, so as to set at least some of the identified memory cells to one or more additional programming levels that are different from the initial programming levels.

    Abstract translation: 一种用于数据存储的方法包括在第一编程阶段通过将该组中的存储器单元编程为一组初始编程级别来将第一数据存储在一组模拟存储器单元中。 在第一编程阶段之后的第二编程阶段,通过以下方式将第二数据存储在组中:将在第一编程阶段中编程的组中的存储器单元识别为初始编程的预定义部分子集中的相应电平 水平; 以及仅使用所述第二数据来编程所识别的存储器单元,以便将所识别的存储器单元中的至少一些设置为与所述初始编程级别不同的一个或多个附加编程级别。

    Interference-aware assignment of programming levels in analog memory cells
    12.
    发明授权
    Interference-aware assignment of programming levels in analog memory cells 有权
    模拟存储器单元中编程级别的干扰感知分配

    公开(公告)号:US08839075B2

    公开(公告)日:2014-09-16

    申请号:US14064464

    申请日:2013-10-28

    Applicant: Apple Inc.

    Abstract: A method for data storage includes accepting data for storage in a memory including multiple analog memory cells. For each memory cell, a respective set of nominal analog values is assigned for representing data values to be stored in the memory cell, by choosing the nominal analog values for a given memory cell in a respective range that depends on interference between the given memory cell and at least one other memory cell in the memory. The data is stored in each memory cell using the respective selected set of the nominal analog values.

    Abstract translation: 一种用于数据存储的方法包括接收用于存储在包括多个模拟存储器单元的存储器中的数据。 对于每个存储器单元,通过在取决于给定存储器单元之间的干扰的相应范围内选择给定存储器单元的额定模拟值,分配相应的一组标称模拟值来表示要存储在存储单元中的数据值 以及存储器中的至少一个其它存储单元。 使用相应选定的标称模拟值集合将数据存储在每个存储单元中。

    DISTORTION ESTIMATION AND CANCELLATION IN MEMORY DEVICES
    15.
    发明申请
    DISTORTION ESTIMATION AND CANCELLATION IN MEMORY DEVICES 审中-公开
    存储器件中的失真估计和消除

    公开(公告)号:US20140157084A1

    公开(公告)日:2014-06-05

    申请号:US14090431

    申请日:2013-11-26

    Applicant: Apple Inc.

    CPC classification number: G06F11/1068 G06F11/1016 G11C16/26

    Abstract: A method for operating a memory (28) includes storing data in a group of analog memory cells (32) of the memory as respective first voltage levels. After storing the data, second voltage levels are read from the respective analog memory cells. The second voltage levels are affected by cross-coupling interference causing the second voltage levels to differ from the respective first voltage levels. Cross-coupling coefficients, which quantify the cross-coupling interference among the analog memory cells, are estimated by processing the second voltage levels. The data stored in the group of analog memory cells is reconstructed from the read second voltage levels using the estimated cross-coupling coefficients.

    Abstract translation: 用于操作存储器(28)的方法包括将存储器的一组模拟存储器单元(32)中的数据存储为相应的第一电压电平。 在存储数据之后,从相应的模拟存储器单元读取第二电压电平。 第二电压电平受到交叉耦合干扰的影响,导致第二电压电平与相应的第一电压电平不同。 通过处理第二电压电平来估计量化模拟存储器单元之间的交叉耦合干扰的交叉耦合系数。 使用估计的交叉耦合系数,从读取的第二电压电平重建存储在模拟存储器单元组中的数据。

    Interference-Aware Assignment of Programming Levels in Analog Memory Cells
    16.
    发明申请
    Interference-Aware Assignment of Programming Levels in Analog Memory Cells 有权
    模拟存储器单元中编程级别的干扰感知分配

    公开(公告)号:US20140053043A1

    公开(公告)日:2014-02-20

    申请号:US14064464

    申请日:2013-10-28

    Applicant: Apple Inc.

    Abstract: A method for data storage includes accepting data for storage in a memory including multiple analog memory cells. For each memory cell, a respective set of nominal analog values is assigned for representing data values to be stored in the memory cell, by choosing the nominal analog values for a given memory cell in a respective range that depends on interference between the given memory cell and at least one other memory cell in the memory. The data is stored in each memory cell using the respective selected set of the nominal analog values.

    Abstract translation: 一种用于数据存储的方法包括接收用于存储在包括多个模拟存储器单元的存储器中的数据。 对于每个存储器单元,通过在取决于给定存储器单元之间的干扰的相应范围内选择给定存储器单元的额定模拟值,分配相应的一组标称模拟值来表示要存储在存储单元中的数据值 以及存储器中的至少一个其它存储单元。 使用相应选定的标称模拟值集合将数据存储在每个存储单元中。

    ADAPTIVE OVER-PROVISIONING IN MEMORY SYSTEMS
    17.
    发明申请
    ADAPTIVE OVER-PROVISIONING IN MEMORY SYSTEMS 有权
    存储系统中的自适应过度配置

    公开(公告)号:US20130268824A1

    公开(公告)日:2013-10-10

    申请号:US13908018

    申请日:2013-06-03

    Applicant: Apple Inc.

    Abstract: A method for data storage includes, in a memory that includes multiple memory blocks, specifying at a first time a first over-provisioning overhead, and storing data in the memory while retaining in the memory blocks memory areas, which do not hold valid data and whose aggregated size is at least commensurate with the specified first over-provisioning overhead. Portions of the data from one or more previously-programmed memory blocks containing one or more of the retained memory areas are compacted. At a second time subsequent to the first time, a second over-provisioning overhead, different from the first over-provisioning overhead, is specified, and data storage and data portion compaction is continued while complying with the second over-provisioning overhead.

    Abstract translation: 一种用于数据存储的方法包括在包括多个存储器块的存储器中,在第一时间指定第一过度供应开销,并且将数据存储在存储器中,同时保留存储器块,其不保存有效数据, 其聚合大小至少与指定的第一超额配置开销相称。 包含一个或多个保留的存储区域的一个或多个预先编程的存储块的数据的部分被压缩。 在第一次之后的第二时间,指定与第一过度供应开销不同的第二过度供应开销,并且在遵循第二过度供应开销的同时继续数据存储和数据部分压缩。

    MEMORY DEVICE WITH INTERNAL SIGNAL PROCESSING UNIT

    公开(公告)号:US20130227231A1

    公开(公告)日:2013-08-29

    申请号:US13860211

    申请日:2013-04-10

    Applicant: Apple Inc

    Abstract: A method for operating a memory includes storing data in a plurality of analog memory cells that are fabricated on a first semiconductor die by writing input storage values to a group of the analog memory cells. After storing the data, multiple output storage values are read from each of the analog memory cells in the group using respective, different threshold sets of read thresholds, thus providing multiple output sets of the output storage values corresponding respectively to the threshold sets. The multiple output sets of the output storage values are preprocessed by circuitry that is fabricated on the first semiconductor die, to produce preprocessed data. The preprocessed data is provided to a memory controller, which is fabricated on a second semiconductor die that is different from the first semiconductor die. so as to enable the memory controller to reconstruct the data responsively to the preprocessed data.

    Adaptive Estimation of Memory Cell Read Thresholds
    19.
    发明申请
    Adaptive Estimation of Memory Cell Read Thresholds 有权
    存储单元读取阈值的自适应估计

    公开(公告)号:US20130121080A1

    公开(公告)日:2013-05-16

    申请号:US13734335

    申请日:2013-01-04

    Applicant: Apple Inc.

    Abstract: A method for operating a memory (28) that includes a plurality of analog memory cells (32) includes storing data in the memory by writing first storage values to the cells. Second storage values are read from the cells, and a Cumulative Distribution Function (CDF) of the second storage values is estimated. The estimated CDF is processed so as to compute one or more thresholds. A memory access operation is performed on the cells using the one or more thresholds.

    Abstract translation: 一种用于操作包括多个模拟存储单元(32)的存储器(28)的方法包括:通过向单元写入第一存储值来将数据存储在存储器中。 从单元读取第二存储值,并且估计第二存储值的累积分布函数(CDF)。 处理估计的CDF以计算一个或多个阈值。 使用一个或多个阈值对单元执行存储器存取操作。

    SYSTEM AND TECHNIQUES FOR IMPROVING IN-ROOM PERSON DETECTION

    公开(公告)号:US20230400574A1

    公开(公告)日:2023-12-14

    申请号:US18140517

    申请日:2023-04-27

    Applicant: APPLE INC.

    CPC classification number: G01S17/04 G01S17/87 G01S17/48 G01S7/52004 G01S15/04

    Abstract: A technique for determining a presence of a person in a room may include an electronic device transmitting an electromagnetic wireless signal of a first sensor. The technique may include receiving an electromagnetic return signal from the electromagnetic wireless signal. The technique may include detecting a potential target in the room based on the electromagnetic return signal. The technique may include determining that the potential target is in the room using a second sensor. Responsive to determining the potential target is in the room, the technique may include saving a training signature of the electromagnetic return signal for training a machine learning model. This technique can be repeated to obtain a set of training signatures corresponding to potential targets. The technique may include training, using the set of training signatures, the machine learning model to detect when a target is in the room using the first sensor.

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