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148 条记录 (耗时 0.031 秒)

    Jointly coded cooperative networking
    121.
    发明授权
    Jointly coded cooperative networking 失效
    联合编码合作网络

    公开(公告)号：US07380193B1

    公开(公告)日：2008-05-27

    申请号：US11019087

    申请日：2004-12-21

    申请人： Ofir Shalvi

    发明人： Ofir Shalvi

    IPC分类号： G06F11/00

    CPC分类号： H04L1/0056 ,  H04B7/15521 ,  H04B7/15592 ,  H04L2001/0097

    摘要： Jointly encoding signals from multiple sources, by cooperating stations, with retransmission of those jointly encoded signals to receivers. A cooperating station decodes signals from multiple sources, jointly encodes them to form a joint protection signal responsive to the decoded signals from those multiple sources, simultaneously responsive to more than one of them. The cooperating station sends the protection signal to one or more receivers, which use that joint protection signal to decode those signals from multiple sources. More than one cooperating stations can each perform similar tasks. Each of those cooperating stations performs those tasks using a distinct protection code, such as a similar error-correcting code, but with distinct parameters. The cooperative stations use an error-correcting block code, including decoding data and parity values of the multiple signals; computing the error-correcting block code; and sending a differing portion of the computed block code.

    摘要翻译： 通过合作台将来自多个源的信号共同编码，并将这些共同编码的信号重新传送到接收机。 协作台对来自多个源的信号进行解码，并对来自这些多个源的解码信号进行联合编码，以形成联合保护信号，同时响应于多个源。 协作台将保护信号发送到一个或多个接收机，使用该联合保护信号对来自多个源的信号进行解码。 每个协作站可以执行类似的任务。 这些协作站中的每一个使用不同的保护代码来执行这些任务，例如类似的纠错码，但具有不同的参数。 合作站使用错误校正块码，包括解码数据和多个信号的奇偶校验值; 计算纠错块码; 并发送所计算的块码的不同部分。

    Signal processing approach for channel coding based on inter-symbol-interference insertion
    123.
    发明授权
    Signal processing approach for channel coding based on inter-symbol-interference insertion 有权
    基于符号间干扰插入的信道编码信号处理方法

    公开(公告)号：US07283590B2

    公开(公告)日：2007-10-16

    申请号：US10659651

    申请日：2003-09-10

    申请人： Ofir Shalvi

    发明人： Ofir Shalvi

    IPC分类号： H04B14/04

    CPC分类号： H04L1/0041 ,  H04L25/497 ,  H04L27/3416

    摘要： An inter-symbol-interference (ISI) coder with mapper and linear filter and a technique of channel encoding deliberately inserts inter-symbol-interference (ISI) into the signal using a non-linear precoder to map map input symbol sequences into sequences of extended symbols. Coded output symbols are generated in response to sequences of extended symbols which are selected from the same grid associated with the input symbols to yield a same minimum distance.

    摘要翻译： 具有映射器和线性滤波器的符号间干扰（ISI）编码器和信道编码技术有意地使用非线性预编码器将符号间干扰（ISI）插入到信号中，以将映射输入符号序列映射到扩展 符号。 响应于从与输入符号相关联的相同网格中选择的扩展符号序列产生编码的输出符号以产生相同的最小距离。

    Signal processing approach for channel coding based on inter-symbol-interference insertion
    125.
    发明申请
    Signal processing approach for channel coding based on inter-symbol-interference insertion 有权
    基于符号间干扰插入的信道编码信号处理方法

    公开(公告)号：US20050052292A1

    公开(公告)日：2005-03-10

    申请号：US10659651

    申请日：2003-09-10

    申请人： Ofir Shalvi

    发明人： Ofir Shalvi

    IPC分类号： H03M7/00 ,  H04L1/00 ,  H04L25/497 ,  H04L27/34

    CPC分类号： H04L1/0041 ,  H04L25/497 ,  H04L27/3416

    摘要： A technique of channel encoding deliberately inserts inter-symbol-interference (ISI) into the signal using a non-linear precoder to map data into a lattice that can have a much better distance spectrum than an uncoded QAM signal, although it has nearly the same power level.

    摘要翻译： 信道编码技术有意使用非线性预编码器将符号间干扰（ISI）插入到信号中，以将数据映射到可以具有比未编码的QAM信号更好的距离谱的格子，尽管它具有几乎相同 能量等级。

    Multi-access, collision-based communications
    128.
    发明授权
    Multi-access, collision-based communications 有权
    多路访问，基于碰撞的通信

    公开(公告)号：US06581177B1

    公开(公告)日：2003-06-17

    申请号：US09303333

    申请日：1999-04-30

    申请人： Mordechai Segal ,  Ofir Shalvi

    发明人： Mordechai Segal ,  Ofir Shalvi

    IPC分类号： H03M1300

    CPC分类号： H04L1/1819 ,  H04L1/1671 ,  H04L1/1845 ,  H04L1/189 ,  H04L12/413

    摘要： A collision-based multi-access system is described which is capable of recovering collisions by means of jointly detecting the mutually interfering signals, followed by re-transmission of functions of portions of some of the colliding signals. This system reduces the amount of required re-transmission of all of the colliding signals, decreasing the amount of re-transmission in the system, increasing the system throughput. The system is also applicable to non-colliding communications systems to correct interference due to noise.

    摘要翻译： 描述了一种基于冲突的多址系统，其能够通过共同检测相互干扰的信号来恢复冲突，随后重新发送一些冲突信号的部分的功能。 该系统减少了所有冲突信号的所需重新传输量，减少了系统中的重传量，增加了系统吞吐量。 该系统还适用于非碰撞通信系统，以纠正噪声造成的干扰。

    Efficient re-read operations in analog memory cell arrays
    129.
    发明授权
    Efficient re-read operations in analog memory cell arrays 有权
    模拟存储单元阵列中的高效重读操作

    公开(公告)号：US08782497B2

    公开(公告)日：2014-07-15

    申请号：US13523421

    申请日：2012-06-14

    申请人： Uri Perlmutter ,  Naftali Sommer ,  Ofir Shalvi

    发明人： Uri Perlmutter ,  Naftali Sommer ,  Ofir Shalvi

    IPC分类号： H03M13/00 ,  G08C25/02 ,  H04L1/18

    CPC分类号： G06F11/10 ,  G06F11/1008 ,  G06F11/1068 ,  G11C2029/0411 ,  H03M13/00 ,  H03M13/3761

    摘要： 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.

    摘要翻译： 一种用于数据存储的方法包括通过将相应的第一存储值写入组中的存储器单元来将经错误校正码（ECC）编码的数据存储在一组模拟存储器单元中。 在存储数据之后，从组中的存储器单元读取相应的第二存储值，并且处理读取的第二存储值以便对ECC进行解码。 响应于对ECC的解码失败，可​​能导致故障的一个或多个第二存储值被识别为可疑存储值。 从包含存储可疑存储值的存储单元的存储器单元的子集重新读取相应的第三存储值。 使用第三存储值对ECC进行重新解码，以重建存储的数据。

    Enhanced programming and erasure schemes for analog memory cells
    130.
    发明授权
    Enhanced programming and erasure schemes for analog memory cells 有权
    增强的模拟存储单元的编程和擦除方案

    公开(公告)号：US08649200B2

    公开(公告)日：2014-02-11

    申请号：US13471483

    申请日：2012-05-15

    申请人： Eyal Gurgi ,  Yoav Kasorla ,  Ofir Shalvi

    发明人： Eyal Gurgi ,  Yoav Kasorla ,  Ofir Shalvi

    IPC分类号： G11C27/00

    CPC分类号： G11C27/005 ,  G11C11/5628 ,  G11C11/5635 ,  G11C11/5678 ,  G11C13/0004 ,  G11C13/0035 ,  G11C13/0069 ,  G11C13/0097 ,  G11C2013/0076

    摘要： A method for data storage includes setting a group of analog memory cells to respective analog values by performing an iterative process that applies a sequence of pulses to the memory cells in the group. During the iterative process, a progress of the iterative process is assessed, and a parameter of the iterative process is modified responsively to the assessed progress. The iterative process is continued in accordance with the modified parameter.

    摘要翻译： 一种用于数据存储的方法包括：通过执行向组中的存储器单元应用脉冲序列的迭代过程来将一组模拟存储器单元设置为相应的模拟值。 在迭代过程中，评估迭代过程的进展，并根据评估的进度来修改迭代过程的参数。 根据修改的参数继续迭代过程。