公开(公告)号：US08745318B2

公开(公告)日：2014-06-03

申请号：US13170794

申请日：2011-06-28

Applicant: Bernardo Rub ,  Ara Patapoutian ,  Bruce Buch

Inventor： Bernardo Rub ,  Ara Patapoutian ,  Bruce Buch

IPC: G06F12/00

CPC classification number: G06F12/0246 ,  G06F2212/7205 ,  G06F2212/7211

Abstract: Methods and systems involve collecting memory device parameters and using memory device parameters to determine memory wear information. A set of first parameters associated with wear of the memory device is monitored for at least one memory unit of the memory device. The first parameters are compared to respective trigger criterion. If the comparison reveals that one or more of the first parameters are beyond their trigger criterion, then collection of a second set of parameters is triggered. The second parameters are also indicative of the wear of the memory device. The set of first parameters may overlap the set of second parameters. The set of second parameters are used to develop memory wear information. In some implementations, the memory wear information may be configuration information used to configure the read/write channel to compensate for wear of the memory device. In some implementations, the memory wear information may be used to predict or estimate the lifetime of the device.

Abstract translation: 方法和系统涉及收集存储器件参数并使用存储器件参数来确定存储器损耗信息。 针对存储器件的至少一个存储器单元监视与存储器件的磨损相关联的一组第一参数。 将第一个参数与相应的触发条件进行比较。 如果比较显示一个或多个第一参数超出其触发标准，则触发第二组参数的收集。 第二参数也表示存储器件的磨损。 第一个参数的集合可能与第二个参数的集合重叠。 第二个参数的集合用于开发内存磨损信息。 在一些实现中，存储器损耗信息可以是用于配置读/写通道以补偿存储器件的磨损的配置信息。 在一些实现中，可以使用存储器磨损信息来预测或估计设备的寿命。

公开(公告)号：US20120075930A1

公开(公告)日：2012-03-29

申请号：US12891475

申请日：2010-09-27

Applicant: Ara Patapoutian ,  Bernardo Rub ,  Bruce Buch

Inventor： Ara Patapoutian ,  Bernardo Rub ,  Bruce Buch

IPC: G11C16/04 ,  G11C16/06

CPC classification number: G11C11/5628 ,  G11C16/0483 ,  G11C16/06 ,  G11C16/3418

Abstract: A nominal reference read operation compares analog voltages of the memory cells to at least one nominal reference voltage. A shifted reference read operation compares the analog voltages of the memory cells to at least one shifted reference voltage that is shifted from the nominal reference voltage to compensate for an expected change in the analog voltages of the memory cells. Data stored in the memory cells is decoded by a first decoding process that uses the information from either the nominal reference read operation or the shifted reference read operation. The data stored in the memory cells is decoded by a second decoding process that uses the information from both the nominal reference read operation and the shifted reference read operation.

Abstract translation: 标称参考读取操作将存储器单元的模拟电压与至少一个标称参考电压进行比较。 移位的参考读取操作将存储器单元的模拟电压与从标称参考电压偏移的至少一个移位的参考电压进行比较，以补偿存储器单元的模拟电压的预期变化。 通过使用来自标称参考读取操作或移位参考读取操作的信息的第一解码处理对存储单元中存储的数据进行解码。 通过使用来自标称参考读取操作和偏移的参考读取操作的信息的第二解码处理来对存储单元中存储的数据进行解码。

公开(公告)号：US20130007343A1

公开(公告)日：2013-01-03

申请号：US13170794

申请日：2011-06-28

Applicant: Bernardo Rub ,  Ara Patapoutian ,  Bruce Buch

Inventor： Bernardo Rub ,  Ara Patapoutian ,  Bruce Buch

IPC: G06F12/02 ,  G06F12/00

CPC classification number: G06F12/0246 ,  G06F2212/7205 ,  G06F2212/7211

Abstract: Methods and systems involve collecting memory device parameters and using memory device parameters to determine memory wear information. A set of first parameters associated with wear of the memory device is monitored for at least one memory unit of the memory device. The first parameters are compared to respective trigger criterion. If the comparison reveals that one or more of the first parameters are beyond their trigger criterion, then collection of a second set of parameters is triggered. The second parameters are also indicative of the wear of the memory device. The set of first parameters may overlap the set of second parameters. The set of second parameters are used to develop memory wear information. In some implementations, the memory wear information may be configuration information used to configure the read/write channel to compensate for wear of the memory device. In some implementations, the memory wear information may be used to predict or estimate the lifetime of the device.

Abstract translation: 方法和系统涉及收集存储器件参数并使用存储器件参数来确定存储器损耗信息。 针对存储器件的至少一个存储器单元监视与存储器件的磨损相关联的一组第一参数。 将第一个参数与相应的触发条件进行比较。 如果比较显示一个或多个第一参数超出其触发标准，则触发第二组参数的收集。 第二参数也表示存储器件的磨损。 第一个参数的集合可能与第二个参数的集合重叠。 第二个参数的集合用于开发内存磨损信息。 在一些实现中，存储器损耗信息可以是用于配置读/写通道以补偿存储器件的磨损的配置信息。 在一些实现中，可以使用存储器磨损信息来预测或估计设备的寿命。

公开(公告)号：US20120079355A1

公开(公告)日：2012-03-29

申请号：US12891490

申请日：2010-09-27

Applicant: Ara Patapoutian ,  Bernardo Rub ,  Bruce Buch

Inventor： Ara Patapoutian ,  Bernardo Rub ,  Bruce Buch

IPC: H03M13/45 ,  G06F11/10

CPC classification number: G06F11/1008 ,  G06F11/1048 ,  G11C16/26 ,  G11C29/844 ,  H03M13/1108 ,  H03M13/1111 ,  H03M13/3707 ,  H03M13/45 ,  H03M13/451 ,  H03M13/458

Abstract: Approaches for decoding data read from memory cells of a nonvolatile, solid state memory involve attempting to decode hard data using a hard decoding process prior to a time that soft data is available to the decoder. The hard data includes information about the digital symbols stored in the memory cells without data confidence information. The soft data includes information about the digital symbols stored in the memory cells and data confidence information. In response to the hard decoding process failing to achieve convergence, after the soft data becomes available to the decoder, the soft data is decoded using a soft decoding process. The decoder generates an output of the decoded data after the hard decoding process or the soft decoding process achieves convergence.

Abstract translation: 用于解码从非易失性固态存储器的存储器单元读取的数据的方法包括在软数据可用于解码器的时间之前尝试使用硬解码处理对硬数据进行解码。 硬数据包括关于存储在存储器单元中的数字符号的信息，而没有数据置信度信息。 软数据包括关于存储在存储单元中的数字符号和数据置信度的信息。 响应于难以实现收敛的硬解码处理，在软数据变得可用于解码器之后，使用软解码处理解码软数据。 在硬解码处理或软解码处理实现收敛之后，解码器生成解码数据的输出。

公开(公告)号：US09473266B1

公开(公告)日：2016-10-18

申请号：US12473728

申请日：2009-05-28

Applicant: Ara Patapoutian ,  Bruce Buch ,  Rose Shao

Inventor： Ara Patapoutian ,  Bruce Buch ,  Rose Shao

IPC: G06F11/00 ,  H04L1/00

CPC classification number: H03M13/1111 ,  H03M13/1105 ,  H03M13/3738 ,  H03M13/3746 ,  H03M13/3784 ,  H03M13/616 ,  H03M13/6325 ,  H04L1/0057

Abstract: An iterative decoder is controlled to iteratively decode a block by performing one or more decoding iterations for the block. The iterative decoder uses a parity-check matrix and can be configured to process that parity-check matrix for parallel, sequential or a combination of parallel and sequential (“hybrid”) parity constraint updates.

Abstract translation: 控制迭代解码器以通过对该块执行一个或多个解码迭代来迭代地解码块。 迭代解码器使用奇偶校验矩阵，并且可以被配置为处理用于并行，顺序或并行和顺序（“混合”）奇偶校验约束更新的组合的奇偶校验矩阵。

公开(公告)号：US07266750B1

公开(公告)日：2007-09-04

申请号：US10454326

申请日：2003-06-04

Applicant: Ara Patapoutian ,  Bruce Buch ,  Rose Shao

Inventor： Ara Patapoutian ,  Bruce Buch ,  Rose Shao

IPC: H03M13/00 ,  H03M13/03

CPC classification number: H03M13/1111 ,  H03M13/1105 ,  H03M13/3738 ,  H03M13/3746 ,  H03M13/3784 ,  H03M13/616 ,  H03M13/6325 ,  H04L1/0057

Abstract: An iterative decoder is controlled to iteratively decode a block by performing one or more decoding iterations for the block during a predetermined block time. The iterative decoder is further controlled to perform more decoding iterations for the block during a time in which the hardware of the iterative decoder is available, if the block fails to converge to correct data during the predetermined block time. The iterative decoder uses a parity-check matrix and can be configured to process that parity-check matrix for parallel, sequential or a combination of parallel and sequential (“hybrid”) parity constraint updates.

Abstract translation: 控制迭代解码器以在预定的块时间期间对块执行一个或多个解码迭代来迭代地解码块。 迭代解码器被进一步控制，以便在迭代解码器的硬件可用的时间期间对块进行更多的解码迭代，如果块在预定块时间期间未能收敛以校正数据。 迭代解码器使用奇偶校验矩阵，并且可以被配置为处理用于并行，顺序或并行和顺序（“混合”）奇偶校验约束更新的组合的奇偶校验矩阵。

公开(公告)号：US07342734B1

公开(公告)日：2008-03-11

申请号：US11011998

申请日：2004-12-14

Applicant: Ara Patapoutian ,  Michael Leis ,  Bruce Buch

Inventor： Ara Patapoutian ,  Michael Leis ,  Bruce Buch

IPC: G11B5/09

CPC classification number: G11B5/59688 ,  G11B5/59655

Abstract: A disk drive includes a rotatable data storage disk, a transducer, an actuator, and a servo burst demodulator. The rotatable data storage disk includes a plurality of servo burst patterns thereon. The plurality of servo burst patterns are substantially radially aligned to each other, and radially adjacent ones of the servo burst patterns are configured to generate contributions to a read signal that are substantially orthogonal to each other. The transducer is configured to read the servo burst patterns on the disk to generate the read signal. The actuator is configured to position the transducer relative to the disk. The servo burst demodulator is configured to identify a separate contribution to the read signal from the radially adjacent servo burst patterns. The servo burst demodulator may be configured to generate transducer position information based on the identified separate contribution to the read signal from the radially adjacent servo burst patterns.

Abstract translation: 磁盘驱动器包括可旋转数据存储盘，换能器，致动器和伺服突发解调器。 可旋转数据存储盘在其上包括多个伺服突发图案。 多个伺服突发图案基本上彼此径向对准，并且径向相邻的伺服突发图案被配置为产生对彼此基本正交的读取信号的贡献。 换能器被配置为读取盘上的伺服脉冲串图案以产生读取信号。 致动器被配置成相对于盘定位换能器。 伺服脉冲串解调器被配置为识别来自径向相邻的伺服脉冲串图案对读取信号的单独贡献。 伺服突发解调器可以被配置为基于从径向相邻的伺服脉冲串图案对所读取的信号所识别的单独贡献来生成换能器位置信息。

公开(公告)号：US20110280068A1

公开(公告)日：2011-11-17

申请号：US12781774

申请日：2010-05-17

Applicant: Ara Patapoutian ,  Deepak Sridhara ,  Bruce Buch

Inventor： Ara Patapoutian ,  Deepak Sridhara ,  Bruce Buch

IPC: G11C16/04

CPC classification number: G11C11/5628 ,  G11C29/00 ,  G11C2216/14

Abstract: Multiple logical pages are jointly encoded into a single code word and are stored in the same physical page of a solid state non-volatile memory (NVM) device having multi-level memory cells. A first logical page of the multiple logical pages is stored in the memory device as first bits of the multi-level memory cells while a second logical page of the multiple logical pages is temporarily cached. After the first logical page is stored as the first bits of the memory cell, the second logical page is stored as second bits of the memory cells.

Abstract translation: 多个逻辑页面被联合编码成单个码字，并被存储在具有多层存储器单元的固态非易失性存储器（NVM）设备的相同物理页面中。 多个逻辑页面的第一逻辑页面被存储在存储器设备中作为多级存储器单元的第一位，而多个逻辑页面的第二逻辑页面被临时高速缓存。 在将第一逻辑页面存储为存储器单元的第一位之后，第二逻辑页面被存储为存储器单元的第二位。

公开(公告)号：US06933864B1

公开(公告)日：2005-08-23

申请号：US10694328

申请日：2003-10-27

Applicant: Bruce Buch ,  Ara Patapoutian

Inventor： Bruce Buch ,  Ara Patapoutian

IPC: H03M5/14 ,  H03M7/00

CPC classification number: H03M5/145

Abstract: A pointer-based modulation coding method and apparatus are presented. The pointer-based modulation coding operates to produce, from an unconstrained data stream of data blocks to be delivered to a data channel, a constrained data stream which satisfies a code constraint of the data channel. The pointer-based modulation coding replaces code constraint violating bit sequences occurring in each data block with values that form a linked list in such data block.

Abstract translation: 提出了一种基于指针的调制编码方法和装置。 基于指针的调制编码操作以从要传送到数据信道的数据块的无约束数据流产生满足数据信道的码约束的约束数据流。 基于指针的调制编码用在这样的数据块中形成链表的值代替在每个数据块中出现的违反比特序列的代码约束。

公开(公告)号：US07423832B2

公开(公告)日：2008-09-09

申请号：US11703317

申请日：2007-02-07

Applicant: Bruce Buch ,  James Fitzpatrick

Inventor： Bruce Buch ,  James Fitzpatrick

IPC: G11B21/02 ,  G11B27/36

CPC classification number: G11B5/02 ,  G11B5/6064 ,  G11B2005/0005

Abstract: A disk drive includes a rotatable data storage disk, a head, a heater element, and a controller. The disk includes a plurality of data sectors between servo spokes. The head is configured to fly on an air cushion relative to the rotating disk while writing data on the data sectors. The heater element is attached to the head and configured to controllably heat the head responsive to a heater signal. The controller determines an upcoming pattern of selected ones of the data sectors on which data is to be written through the head in response to at least one write command from a host device, and controls the heater signal in response to the determined upcoming pattern of data sectors on which data is to be written.

Abstract translation: 磁盘驱动器包括可旋转数据存储盘，头，加热器元件和控制器。 盘包括伺服轮辐之间的多个数据扇区。 头部配置成相对于旋转盘在气垫上飞行，同时在数据扇区上写入数据。 加热器元件附接到头部并且被配置为响应于加热器信号可控地加热头部。 控制器响应于来自主机设备的至少一个写入命令，确定要通过头部写入数据的所选数据扇区的即将到来的模式，并根据所确定的即将到来的数据模式来控制加热器信号 要写入数据的扇区。