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1. 发明申请

US20130275829A1 USING A SOFT DECODER WITH HARD DATA 有权
标题翻译：使用硬数据的软解码器
公开(公告)号：US20130275829A1
公开(公告)日：2013-10-17
申请号：US13445591
申请日：2012-04-12
申请人： Deepak Sridhara , Arvind Sridharan , Ara Patapoutian
发明人： Deepak Sridhara , Arvind Sridharan , Ara Patapoutian
IPC分类号： H03M13/29 , G06F11/10
CPC分类号： G06F11/1048 , G11C11/5642 , H03M13/1111 , H03M13/2957 , H03M13/3707 , H03M13/6325 , H03M13/6511 , H03M13/6577
摘要： A method for re-using a soft decoder involves receiving soft data and hard data from memory cells in a memory device, mapping the soft data to a first set of soft information, mapping the hard data to a second set of soft information, and using the soft decoder to decode both the first set and second set of soft information.
摘要翻译：用于重新使用软解码器的方法包括从存储器设备中的存储器单元接收软数据和硬数据，将软数据映射到第一组软信息，将硬数据映射到第二组软信息，并使用软解码器解码第一组和第二组软信息。

2. 发明申请

US20130094289A1 DETERMINATION OF MEMORY READ REFERENCE AND PROGRAMMING VOLTAGES 有权
标题翻译：记忆读取参考和编程电压的确定
公开(公告)号：US20130094289A1
公开(公告)日：2013-04-18
申请号：US13275497
申请日：2011-10-18
申请人： Arvind Sridharan , Ara Patapoutian
发明人： Arvind Sridharan , Ara Patapoutian
IPC分类号： G11C16/04
CPC分类号： G11C11/5628 , G11C16/0483 , G11C16/28 , G11C16/3418
摘要： Symmetrical or asymmetrical noise distributions for voltages corresponding to symbols that can be stored in multi-level memory cells (MLCs) of a memory device are used to determine read reference and/or programming voltages. The read reference voltages and/or programming voltages for the MLCs are jointly determined using the symmetrical distributions and a maximum likelihood estimation (MLE) and/or by determining at least one of the read reference voltages and the programming voltages using the asymmetrical distributions.
摘要翻译：用于对应于可存储在存储器件的多级存储器单元（MLC）中的符号的电压的对称或非对称噪声分布用于确定读取参考和/或编程电压。使用对称分布和最大似然估计（MLE）和/或通过使用不对称分布确定读取的参考电压和编程电压中的至少一个来共同确定MLC的读取参考电压和/或编程电压。

3. 发明申请

US20130094286A1 DETERMINING OPTIMAL READ REFERENCE AND PROGRAMMING VOLTAGES FOR NON-VOLATILE MEMORY USING MUTUAL INFORMATION 失效
标题翻译：使用相关信息确定非易失性存储器的最佳读取参考和编程电压
公开(公告)号：US20130094286A1
公开(公告)日：2013-04-18
申请号：US13275598
申请日：2011-10-18
申请人： Arvind Sridharan , Ara Patapoutian
发明人： Arvind Sridharan , Ara Patapoutian
IPC分类号： G11C16/10
CPC分类号： G11C16/26 , G11C11/5642 , G11C16/3418
摘要： Approaches for operating a memory device comprising memory cells are disclosed. Optimal values for one or more of programming voltages used to program memory cells of the memory device and read reference voltages used to read the memory cells are determined using a mutual information function, I(X; Y), where X represents data values programmed to the memory cells and Y represents data values read from the memory cells. The read reference and/or programming voltages used for reading and/or programming the memory cells are adjusted using the optimal values.
摘要翻译：公开了用于操作包括存储器单元的存储器件的方法。使用用于对存储器件的存储器单元编程的一个或多个编程电压和用于读取存储器单元的读取参考电压的最佳值使用互信息函数I（X; Y）确定，其中X表示被编程为存储单元，Y表示从存储器单元读取的数据值。用于读取和/或编程存储器单元的读取参考和/或编程电压使用最佳值进行调整。

4. 发明申请

US20110296272A1 OUTER CODE PROTECTION FOR SOLID STATE MEMORY DEVICES 有权
标题翻译：固态存储器件的外部代码保护
公开(公告)号：US20110296272A1
公开(公告)日：2011-12-01
申请号：US12790120
申请日：2010-05-28
申请人： Bernardo Rub , Ara Patapoutian , Arvind Sridharan , Bruce D. Buch
发明人： Bernardo Rub , Ara Patapoutian , Arvind Sridharan , Bruce D. Buch
IPC分类号： H03M13/29 , G06F11/10
CPC分类号： G06F11/1012
摘要： Outer code words can span multiple data blocks, multiple die, or multiple chips of a memory device to protect against errors in the data stored in the blocks, die and/or chips. A solid state memory device is arranged in multiple data blocks, each block including an array of memory cells arranged in a plurality of pages. The data is encoded into inner code words and symbol-based outer code words. The inner code words and the symbol-based outer code words are stored in the memory cells of the multiple blocks. One or more inner code words are stored in each page of each block and one or more symbols of each outer code word are stored in at least one page of each block. The inner code words and the outer code words are read from the memory device and are used to correct the errors in the data.
摘要翻译：外码字可以跨越存储器设备的多个数据块，多个芯片或多个芯片，以防止存储在块，芯片和/或芯片中的数据中的错误。固态存储器件被布置在多个数据块中，每个块包括以多页布置的存储器单元的阵列。数据被编码成内码字和基于符号的外码字。内码字和基于符号的外码字被存储在多个块的存储单元中。一个或多个内部码字被存储在每个块的每个页面中，并且每个外部码字的一个或多个符号被存储在每个块的至少一个页面中。内部码字和外部码字从存储器件读取并用于校正数据中的错误。

5. 发明申请

US20110096430A1 Converting Timing Errors into Symbol Errors to Handle Write Mis-Synchronization in Bit-Patterned Media Recording Systems 有权
标题翻译：将时序错误转换为符号错误，以处理位图形媒体记录系统中的写入错误同步
公开(公告)号：US20110096430A1
公开(公告)日：2011-04-28
申请号：US12984182
申请日：2011-01-04
申请人： Deepak Sridhara , Ching He , Arvind Sridharan , Raman Venkataranmani
发明人： Deepak Sridhara , Ching He , Arvind Sridharan , Raman Venkataranmani
IPC分类号： G11B5/09
CPC分类号： G11B20/1833 , G11B5/82 , G11B2005/0005 , G11B2020/1836 , G11B2020/185 , G11B2020/1853 , G11B2220/2516
摘要： A method includes writing data to a bit-patterned media at times determined by a clock having a period that is offset from a bit island period by a fixed offset to create one insertion or one deletion approximately within a predetermined number of bit islands, reading the data, and correcting the read data using error correction. An apparatus that implements the method is also provided.
摘要翻译：一种方法包括在由具有从位岛周期偏移固定偏移的周期的时钟确定的时间内将数据写入位图案化介质，以在大约预定数量的位岛内创建一个插入或一个删除，读取数据，并使用纠错校正读取的数据。还提供了一种实现该方法的设备。

6. 发明授权

US07864471B2 Converting timing errors into symbol errors to handle write mis-synchronization in bit-patterened media recording systems 有权
标题翻译：将定时错误转换为符号错误，以处理位图媒体记录系统中的写入错误同步
公开(公告)号：US07864471B2
公开(公告)日：2011-01-04
申请号：US12178880
申请日：2008-07-24
申请人： Deepak Sridhara , Ching He , Arvind Sridharan , Raman Venkataramani
发明人： Deepak Sridhara , Ching He , Arvind Sridharan , Raman Venkataramani
IPC分类号： G11B5/09
CPC分类号： G11B20/1833 , G11B5/82 , G11B2005/0005 , G11B2020/1836 , G11B2020/185 , G11B2020/1853 , G11B2220/2516
摘要： A method includes: writing data to a bit-patterned media at times determined by a clock having a period that is offset from a bit island period by a fixed offset to create one insertion or one deletion approximately within a predetermined number of bit islands, reading the data, and correcting the read data using error correction. An apparatus that implements the method is also provided.
摘要翻译：一种方法包括：在由具有从位岛周期偏移固定偏移的周期的时钟确定的时间内将数据写入位图案化介质，以在大约预定数量的位岛内创建一个插入或一个删除，读取数据，并使用纠错校正读取的数据。还提供了一种实现该方法的设备。

7. 发明申请

US20100020429A1 Converting Timing Errors Into Symbol Errors to Handle Write Mis-Synchronization in Bit-Patterned Media Recording Systems 有权
标题翻译：将时序错误转换为符号错误，以处理位图形媒体录制系统中的写入错误同步
公开(公告)号：US20100020429A1
公开(公告)日：2010-01-28
申请号：US12178880
申请日：2008-07-24
申请人： Deepak Sridhara , Ching He , Arvind Sridharan , Raman Venkataramani
发明人： Deepak Sridhara , Ching He , Arvind Sridharan , Raman Venkataramani
IPC分类号： G11B5/09
CPC分类号： G11B20/1833 , G11B5/82 , G11B2005/0005 , G11B2020/1836 , G11B2020/185 , G11B2020/1853 , G11B2220/2516
摘要： A method includes: writing data to a bit-patterned media at times determined by a clock having a period that is offset from a bit island period by a fixed offset to create one insertion or one deletion approximately within a predetermined number of bit islands, reading the data, and correcting the read data using error correction. An apparatus that implements the method is also provided.
摘要翻译：一种方法包括：在由具有从位岛周期偏移固定偏移的周期的时钟确定的时间内将数据写入位图案化介质，以在大约预定数量的位岛内创建一个插入或一个删除，读取数据，并使用纠错校正读取的数据。还提供了一种实现该方法的设备。

8. 发明授权

US08711619B2 Categorizing bit errors of solid-state, non-volatile memory 有权
标题翻译：分类固态，非易失性存储器的位错误
公开(公告)号：US08711619B2
公开(公告)日：2014-04-29
申请号：US13275418
申请日：2011-10-18
申请人： Ara Patapoutian , Arvind Sridharan
发明人： Ara Patapoutian , Arvind Sridharan
IPC分类号： G11C16/04 , G11C16/06
CPC分类号： G11C16/10 , G11C11/5628 , G11C16/06 , G11C16/3454
摘要： Bit errors affecting cells of a solid-state, non-volatile memory are assigned to at least a first or a second category based on a relative amount of voltage shift that caused the respective bit errors in the respective cells. A reference voltage used to access the respective cells is adjusted to manage the respective bit errors of the first category. Additional corrective measures are taken to manage the respective bit errors of the second category.
摘要翻译：基于导致各个单元中的各个位错误的电压偏移的相对量，将影响固态非易失性存储器的单元的位错误分配给至少第一或第二类别。调整用于访问相应单元的参考电压以管理第一类别的相应位错误。采取额外的纠正措施来管理第二类别的相应位错误。

9. 发明申请

US20130006896A1 Training Datasets for Memory Devices 审中-公开
标题翻译：内存设备的训练数据集
公开(公告)号：US20130006896A1
公开(公告)日：2013-01-03
申请号：US13170802
申请日：2011-06-28
申请人： Ara Patapoutian , Arvind Sridharan
发明人： Ara Patapoutian , Arvind Sridharan
IPC分类号： G06F15/18
CPC分类号： G11C11/5642 , G06N20/00 , G11C16/3418
摘要： Methods and systems involve the use of training datasets to determine one or more reference voltages used to read data in a memory unit. Approaches for accessing a memory device having multiple memory units includes storing a training dataset comprising at least one of a known data pattern and a codeword capable of being decoded in a training dataset field of each memory unit of a memory device. One or more reference voltages are determined using the training dataset stored in the memory unit. After the reference voltages have been determined using the training dataset, these reference voltages are used to read other fields of the memory unit.
摘要翻译：方法和系统涉及使用训练数据集来确定用于读取存储器单元中的数据的一个或多个参考电压。用于访问具有多个存储器单元的存储器件的方法包括存储训练数据集，训练数据集包括能够在存储器件的每个存储器单元的训练数据集域中能够解码的已知数据模式和码字中的至少一种。使用存储在存储器单元中的训练数据集来确定一个或多个参考电压。在使用训练数据集确定参考电压之后，这些参考电压用于读取存储器单元的其它场。

10. 发明授权

US08130459B2 Converting timing errors into symbol errors to handle write mis-synchronization in bit-patterned media recording systems 有权
标题翻译：将定时误差转换为符号错误，以处理位图案媒体记录系统中的写入错误同步
公开(公告)号：US08130459B2
公开(公告)日：2012-03-06
申请号：US12984182
申请日：2011-01-04
申请人： Deepak Sridhara , Ching He , Arvind Sridharan , Raman Venkataranmani
发明人： Deepak Sridhara , Ching He , Arvind Sridharan , Raman Venkataranmani
IPC分类号： G11B5/09
CPC分类号： G11B20/1833 , G11B5/82 , G11B2005/0005 , G11B2020/1836 , G11B2020/185 , G11B2020/1853 , G11B2220/2516
摘要： A method includes writing data to a bit-patterned media at times determined by a clock having a period that is offset from a bit island period by a fixed offset to create one insertion or one deletion approximately within a predetermined number of bit islands, reading the data, and correcting the read data using error correction. An apparatus that implements the method is also provided.
摘要翻译：一种方法包括在由具有从位岛周期偏移固定偏移的周期的时钟确定的时间内将数据写入位图案化介质，以在大约预定数量的位岛内创建一个插入或一个删除，读取数据，并使用纠错校正读取的数据。还提供了一种实现该方法的设备。

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