公开(公告)号：US20080137527A1

公开(公告)日：2008-06-12

申请号：US11635886

申请日：2006-12-08

Applicant: Eyal Bick ,  Uri Perlmutter ,  Yuval Lomnitz

Inventor： Eyal Bick ,  Uri Perlmutter ,  Yuval Lomnitz

IPC: H04J11/00 ,  H04L27/28

CPC classification number: H04L27/2656 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2605 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2686

Abstract: A method for detectable a pre-amble location in a multiple preamble OFDM (Orthogonal Frequency Division Multiplexing) system is disclosed. An OFDM signal is generated with a plurality of frames, and each of the frames includes symbols and a predetermined preamble symbol. A maximum FDDC (Frequency Domain Differential Correlator) value is computed for each of the symbols in some of the frames. The pre-amble location in a frame is determined by summing the maximum FDDC value for each symbol at a same frame location in consecutive frames of the OFDM signal.

Abstract translation: 公开了一种在多前同步码OFDM（正交频分复用）系统中可检测前同步码头位置的方法。 利用多个帧生成OFDM信号，并且每个帧包括符号和预定的前导码符号。 对于一些帧中的每个符号计算最大FDDC（频域差分相关器）值。 通过在OFDM信号的连续帧中的相同帧位置处对每个符号的最大FDDC值求和来确定帧中的前同步码头位置。

公开(公告)号：US20080063094A1

公开(公告)日：2008-03-13

申请号：US11516902

申请日：2006-09-07

Applicant: Assaf Gurevitz ,  Uri Perlmutter

Inventor： Assaf Gurevitz ,  Uri Perlmutter

IPC: H04K1/10 ,  H04L27/06

CPC classification number: H04L27/2649 ,  H04L27/2656 ,  H04L27/2676

Abstract: Embodiments of methods and means for auto-correlating wireless signal samples are provided. Such embodiments include local normalization of each signal sample by a root mean square level of samples that preceded it, prior to any summation of the auto-correlation procedure. These auto-correlated signal samples are then used to distinguish downlink from uplink signals present within the signal sample set. Other embodiments include auto-correlation techniques in which no normalization is performed at any time with respect to the summation procedure. Such auto-correlated samples are then scanned to detect a preamble symbol or symbols within the signal samples. Reliable and expeditious wireless communications under WiMAX 802.16e and other protocols can be achieved in accordance with the present embodiments.

Abstract translation: 提供了用于自动相关无线信号样本的方法和装置的实施例。 这样的实施例包括在自相关过程的任何求和之前，通过其前面的样本的均方根水平来对每个信号样本进行局部归一化。 然后，这些自动相关信号样本用于将下行链路与信号样本集中存在的上行链路信号区分开来。 其他实施例包括其中相对于求和过程在任何时间不进行规范化的自相关技术。 然后扫描这样的自相关样本以检测信号样本内的前导符号或符号。 根据本实施例，可以实现在WiMAX 802.16e和其他协议下的可靠和快速的无线通信。

公开(公告)号：US20060025079A1

公开(公告)日：2006-02-02

申请号：US10911159

申请日：2004-08-02

Applicant: Ilan Sutskover ,  David Ben-Eli ,  Uri Perlmutter

Inventor： Ilan Sutskover ,  David Ben-Eli ,  Uri Perlmutter

IPC: H04Q7/20

CPC classification number: H04L5/1484 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0051 ,  H04L5/0091 ,  H04L25/0226

Abstract: Method and apparatus to perform channel estimation for a wireless communication system are described.

Abstract translation: 描述了对无线通信系统进行信道估计的方法和装置。

公开(公告)号：US08547742B2

公开(公告)日：2013-10-01

申请号：US13449326

申请日：2012-04-18

Applicant: Ofir Shalvi ,  Naftali Sommer ,  Uri Perlmutter ,  Dotan Sokolov

Inventor： Ofir Shalvi ,  Naftali Sommer ,  Uri Perlmutter ,  Dotan Sokolov

IPC: G11C16/04

CPC classification number: G06F11/1068 ,  G11C11/5628 ,  G11C11/5642 ,  G11C16/26 ,  G11C27/005 ,  G11C2211/5641

Abstract: A method for data storage includes accepting data for storage in a memory that includes multiple analog memory cells and supports a set of built-in programming commands. Each of the programming commands programs a respective page, selected from a group of N pages, in a subset of the memory cells. The subset of the memory cells is programmed to store M pages of the data, M>N, by performing a sequence of the programming commands drawn only from the set.

公开(公告)号：US08429498B1

公开(公告)日：2013-04-23

申请号：US12728289

申请日：2010-03-22

Applicant: Micha Anholt ,  Naftali Sommer ,  Ronen Dar ,  Uri Perlmutter ,  Tal Inbar

Inventor： Micha Anholt ,  Naftali Sommer ,  Ronen Dar ,  Uri Perlmutter ,  Tal Inbar

IPC: G11C29/00

CPC classification number: G06F11/1048 ,  G11C2029/0411

Abstract: A decoding apparatus includes a decoder and a control unit. The decoder includes circuitry that is configured to decode an Error Correction Code (ECC) by operating in one of a first operational mode having a first power consumption, and a second operational mode, in which at least part of the circuitry that is active during the first operational mode is deactivated and which has a second power consumption that is lower than the first power consumption. The control unit is configured to evaluate a criterion with respect to an input code word, to select one of the first and second operational modes responsively to the criterion, and to invoke the decoder to decode the input code word using the selected operational mode.

Abstract translation: 解码装置包括解码器和控制单元。 解码器包括经配置以通过以具有第一功率消耗的第一操作模式和第二操作模式之一进行操作来解码错误校正码（ECC）的电路，其中在该期间内的有效电路的至少一部分 第一操作模式被禁用并且具有低于第一功率消耗的第二功率消耗。 控制单元被配置为评估关于输入代码字的标准，以响应于该标准选择第一和第二操作模式中的一个，并且使用所选择的操作模式调用解码器对输入的代码字进行解码。

公开(公告)号：US20120297271A1

公开(公告)日：2012-11-22

申请号：US13565122

申请日：2012-08-02

Applicant: Naftali Sommer ,  Micha Anholt ,  Oren Golov ,  Uri Perlmutter ,  Shai Winter

Inventor： Naftali Sommer ,  Micha Anholt ,  Oren Golov ,  Uri Perlmutter ,  Shai Winter

IPC: G06F12/14 ,  G06F11/08

CPC classification number: G06F11/1048

Abstract: A method for data storage includes defining a set of scrambling sequences, each sequence including bits in respective bit positions having bit values, such that a distribution of the bit values in any give bit position satisfies a predefined statistical criterion. Each data word is scrambled using a respective scrambling sequence selected from the set. The scrambled data words are stored in the memory device.

Abstract translation: 一种用于数据存储的方法包括定义一组加扰序列，每个序列包括具有比特值的相应比特位置中的比特，使得任何给定比特位置中的比特值的分布满足预定义的统计标准。 使用从集合中选择的相应加扰序列对每个数据字进行加扰。 加扰的数据字被存储在存储器件中。

公开(公告)号：US20120272122A1

公开(公告)日：2012-10-25

申请号：US13523421

申请日：2012-06-14

Applicant: Uri Perlmutter ,  Naftali Sommer ,  Ofir Shalvi

Inventor： Uri Perlmutter ,  Naftali Sommer ,  Ofir Shalvi

IPC: H03M13/05 ,  G06F11/10

CPC classification number: G06F11/10 ,  G06F11/1008 ,  G06F11/1068 ,  G11C2029/0411 ,  H03M13/00 ,  H03M13/3761

Abstract: A method for data storage includes storing data, which is encoded with an Error Correction Code (ECC), in a group of analog memory cells by writing respective first storage values to the memory cells in the group. After storing the data, respective second storage values are read from the memory cells in the group, and the read second storage values are processed so as to decode the ECC. Responsively to a failure in decoding the ECC, one or more of the second storage values that potentially caused the failure are identified as suspect storage values. Respective third storage values are re-read from a subset of the memory cells that includes the memory cells holding the suspect storage values. The ECC is re-decoded using the third storage values so as to reconstruct the stored data.

公开(公告)号：US20120268990A1

公开(公告)日：2012-10-25

申请号：US13539759

申请日：2012-07-02

Applicant: Naftali Sommer ,  Uri Perlmutter ,  Shai Winter

Inventor： Naftali Sommer ,  Uri Perlmutter ,  Shai Winter

IPC: G11C16/10

CPC classification number: G11C16/10 ,  G11C11/5628 ,  G11C16/3459 ,  G11C29/78

Abstract: A method for data storage includes defining, in a memory that includes multiple analog memory cells, an erased state, a set of non-erased programming states and a partial subset of the non-erased programming states. Data is initially stored in a first group of the analog memory cells by programming each of at least some of the memory cells in the first group from the erased state to a respective non-erased programming state selected from the set of non-erased programming states. After initially storing the data, a second group of the analog memory cells, which potentially cause interference to the first group, is programmed. After programming the second group, the first group is selectively re-programmed with the data by repeating programming of only the memory cells in the first group whose respective programming states belong to the partial subset.

Abstract translation: 一种用于数据存储的方法包括在包括多个模拟存储器单元的存储器中定义擦除状态，一组未擦除的编程状态和未擦除编程状态的部分子集。 最初将数据存储在第一组模拟存储器单元中，通过将第一组中的至少一些存储单元中的每一个从擦除状态编程为从非擦除编程状态集合中选择的各自的非擦除编程状态 。 在最初存储数据之后，编程可能对第一组产生干扰的第二组模拟存储器单元。 在对第二组进行编程之后，通过重复仅对其各自编程状态属于部分子集的第一组中的存储器单元进行编程，对该第一组进行有选择地重新编程。

公开(公告)号：US08259506B1

公开(公告)日：2012-09-04

申请号：US12728296

申请日：2010-03-22

Applicant: Naftali Sommer ,  Uri Perlmutter

Inventor： Naftali Sommer ,  Uri Perlmutter

IPC: G11C16/04

CPC classification number: G11C11/5642 ,  G11C16/26 ,  G11C16/3404

Abstract: A method for data storage includes storing multiple sets each including one or more read thresholds for use in reading data from a plurality of analog memory cells. The memory cells are arranged in multiple erasure blocks each including multiple pages, and each set of read thresholds is associated with a respective page in one of the erasure blocks. A first page, which belongs to a given erasure block and is not associated with any of the stored sets of read thresholds, is read by retrieving a stored set of read thresholds that is associated with a second page in the given erasure block, adapting the retrieved set of read thresholds to match the first page, and reading the first page using the adapted set of read thresholds.

Abstract translation: 一种用于数据存储的方法包括存储多个集合，每个集合包括一个或多个读取阈值，用于从多个模拟存储器单元读取数据。 存储器单元被布置在多个擦除块中，每个擦除块包括多个页面，并且每组读取阈值与擦除块之一中的相应页面相关联。 通过检索与给定擦除块中的第二页相关联的存储的一组读取阈值来读取属于给定擦除块并且不与所存储的读取阈值集合相关联的第一页面， 检索到的一组读取阈值以匹配第一页，并且使用适应的读取阈值集读取第一页。

公开(公告)号：US08174905B2

公开(公告)日：2012-05-08

申请号：US12721585

申请日：2010-03-11

Applicant: Ofir Shalvi ,  Eyal Gurgi ,  Uri Perlmutter ,  Oren Golov

Inventor： Ofir Shalvi ,  Eyal Gurgi ,  Uri Perlmutter ,  Oren Golov

IPC: G11C11/34

CPC classification number: G11C16/3418 ,  G11C11/56 ,  G11C16/04 ,  G11C27/005 ,  G11C2211/5641

Abstract: A method for data storage includes predefining an order of programming a plurality of analog memory cells that are arranged in rows. The order specifies that for a given row having neighboring rows on first and second sides, the memory cells in the given row are programmed only while the memory cells in the neighboring rows on at least one of the sides are in an erased state, and that the memory cells in the given row are programmed to assume a highest programming level, which corresponds to a largest analog value among the programming levels of the cells, only after programming all the memory cells in the given row to assume the programming levels other than the highest level. Data is stored in the memory cells by programming the memory cells in accordance with the predefined order.

Abstract translation: 一种用于数据存储的方法包括预先定义以行排列的多个模拟存储器单元的编程顺序。 该顺序指定对于在第一和第二侧具有相邻行的给定行，只有在至少一个侧面上的相邻行中的存储器单元处于擦除状态时，给定行中的存储器单元被编程，并且该 给定行中的存储器单元被编程为假设最高编程电平，其对应于单元的编程电平中的最大模拟值，只有在编程给定行中的所有存储器单元之后才采用除 最高水平。 根据预定义的顺序对存储器单元进行编程，将数据存储在存储器单元中。