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公开(公告)号：US07826544B2
公开(公告)日：2010-11-02
申请号：US11824600
申请日：2007-06-29
申请人： Eyal Bick , Uri Perlmutter
发明人： Eyal Bick , Uri Perlmutter
IPC分类号： H04K1/10
CPC分类号： H04L27/2662 , H04L27/266 , H04L27/2678
摘要： In general, in one aspect, the disclosure describes a method defining order and means in which physical parameters of a received OFDM signal may be detected. A fractional frequency offset is determined for the OFDM signal and is used to determine a coarse location for received signal preamble. A symbol boundary is determined based on the coarse location and the course location is used to determine preamble location. A preamble sequence and integer frequency offset is determined based on the preamble location.
摘要翻译： 通常，在一个方面，本公开描述了定义可以检测接收的OFDM信号的物理参数的顺序和装置的方法。 确定OFDM信号的分数频偏，并用于确定接收信号前同步码的粗略位置。 基于粗略位置确定符号边界，并且使用路线位置来确定前导码位置。 基于前导码位置确定前导码序列和整数频率偏移。
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公开(公告)号：US07843872B2
公开(公告)日：2010-11-30
申请号：US11796956
申请日：2007-04-30
申请人： Eyal Bick , Uri Perlmutter , Yuval Lomnitz
发明人： Eyal Bick , Uri Perlmutter , Yuval Lomnitz
IPC分类号： H04W4/00
CPC分类号： H04L25/022 , H04L25/0228 , H04W36/30
摘要： Methods and arrangements for wireless communications are described. Embodiments include transformations, code, state machines or other logic to receive from a transmitter a signal representing a known sequence of symbols. The signal may be transmitted over a plurality of sub channels. The embodiments may also include determining channel responses at the sub channels and determining a reception of the known sequence. The determining may include treating the channel responses at the sub channels in a differential manner to cancel out channel phase responses and obtain channel amplitudes. In some embodiments, the cancelling may be performed by multiplying frequency domain values representing reception of a sub channel by the complex conjugate of frequency domain values of a neighboring sub channel. Many embodiments may also include calculating a carrier to interference and noise ratio (CINR) of the signal. In several embodiments, the signal may represent the preamble of a wireless frame.
摘要翻译： 描述无线通信的方法和布置。 实施例包括转换，代码，状态机或用于从发射机接收表示已知符号序列的信号的其他逻辑。 信号可以在多个子信道上发送。 实施例还可以包括确定子信道处的信道响应并确定已知序列的接收。 确定可以包括以差分方式处理子信道处的信道响应以消除信道相位响应并获得信道幅度。 在一些实施例中，可以通过将表示子信道的接收的频域值乘以相邻子信道的频域值的复共轭来执行抵消。 许多实施例还可以包括计算信号的载波与干扰和噪声比（CINR）。 在几个实施例中，信号可以表示无线帧的前同步码。
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公开(公告)号：US20080267059A1
公开(公告)日：2008-10-30
申请号：US11796956
申请日：2007-04-30
申请人： Eyal Bick , Uri Perlmutter , Yuval Lomnitz
发明人： Eyal Bick , Uri Perlmutter , Yuval Lomnitz
CPC分类号： H04L25/022 , H04L25/0228 , H04W36/30
摘要： Methods and arrangements for wireless communications are described. Embodiments include transformations, code, state machines or other logic to receive from a transmitter a signal representing a known sequence of symbols. The signal may be transmitted over a plurality of sub channels. The embodiments may also include determining channel responses at the sub channels and determining a reception of the known sequence. The determining may include treating the channel responses at the sub channels in a differential manner to cancel out channel phase responses and obtain channel amplitudes. In some embodiments, the cancelling may be performed by multiplying frequency domain values representing reception of a sub channel by the complex conjugate of frequency domain values of a neighboring sub channel. Many embodiments may also include calculating a carrier to interference and noise ratio (CINR) of the signal. In several embodiments, the signal may represent the preamble of a wireless frame.
摘要翻译： 描述无线通信的方法和布置。 实施例包括转换，代码，状态机或用于从发射机接收表示已知符号序列的信号的其他逻辑。 信号可以在多个子信道上发送。 实施例还可以包括确定子信道处的信道响应并确定已知序列的接收。 确定可以包括以差分方式处理子信道处的信道响应以消除信道相位响应并获得信道幅度。 在一些实施例中，可以通过将表示子信道的接收的频域值乘以相邻子信道的频域值的复共轭来执行抵消。 许多实施例还可以包括计算信号的载波与干扰和噪声比（CINR）。 在几个实施例中，信号可以表示无线帧的前同步码。
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公开(公告)号：US07606139B2
公开(公告)日：2009-10-20
申请号：US11635886
申请日：2006-12-08
申请人： Eyal Bick , Uri Perlmutter , Yuval Lomnitz
发明人： Eyal Bick , Uri Perlmutter , Yuval Lomnitz
IPC分类号： H04J11/00
CPC分类号： H04L27/2656 , H04L5/0007 , H04L5/0048 , H04L27/2605 , H04L27/2657 , H04L27/2662 , H04L27/2686
摘要： A method for detecting a preamble 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 preamble 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.
摘要翻译： 公开了一种用于检测多前同步码OFDM（正交频分复用）系统中的前导码位置的方法。 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导码位置。
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公开(公告)号：US20090003471A1
公开(公告)日：2009-01-01
申请号：US11824600
申请日：2007-06-29
申请人： Eyal Bick , Uri Perlmutter
发明人： Eyal Bick , Uri Perlmutter
IPC分类号： H04L27/28
CPC分类号： H04L27/2662 , H04L27/266 , H04L27/2678
摘要： In general, in one aspect, the disclosure describes a method defining order and means in which physical parameters of a received OFDM signal may be detected. A fractional frequency offset is determined for the OFDM signal and is used to determine a coarse location for received signal preamble. A symbol boundary is determined based on the coarse location and the course location is used to determine preamble location. A preamble sequence and integer frequency offset is determined based on the preamble location.
摘要翻译： 通常，在一个方面，本公开描述了定义可以检测接收的OFDM信号的物理参数的顺序和装置的方法。 确定OFDM信号的分数频偏，并用于确定接收信号前同步码的粗略位置。 基于粗略位置确定符号边界，并且使用路线位置来确定前导码位置。 基于前导码位置确定前导码序列和整数频率偏移。
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公开(公告)号：US20080137527A1
公开(公告)日：2008-06-12
申请号：US11635886
申请日：2006-12-08
申请人： Eyal Bick , Uri Perlmutter , Yuval Lomnitz
发明人： Eyal Bick , Uri Perlmutter , Yuval Lomnitz
CPC分类号： H04L27/2656 , H04L5/0007 , H04L5/0048 , H04L27/2605 , H04L27/2657 , H04L27/2662 , H04L27/2686
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20170170885A1
公开(公告)日：2017-06-15
申请号：US15283383
申请日：2016-10-01
申请人： Qinghua Li , Xiaogang Chen , Xintian Lin , Yuan Zhu , Assaf Gurevitz , Uri Perlmutter
发明人： Qinghua Li , Xiaogang Chen , Xintian Lin , Yuan Zhu , Assaf Gurevitz , Uri Perlmutter
CPC分类号： H04B7/0617 , H04B7/0413 , H04W28/0236
摘要： This disclosure describes methods, apparatus, and systems related to applying channel smoothing to beamformed vectors in wireless communications between a transmitter device and a receiver device. In a first aspect, a device is disclosed that identifies disruptions between at least two first beamforming vectors on adjacent frequencies in a communication channel between the device and a first device of a plurality of user devices. The device determines one or more second beamforming vectors proximate to the identified disruption. The device utilizes the one or more second beamforming vectors to smooth the communication channel between the device and the first device of the plurality of user devices.
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公开(公告)号：US09229861B2
公开(公告)日：2016-01-05
申请号：US13526859
申请日：2012-06-19
申请人： Uri Perlmutter , Oren Golov
发明人： Uri Perlmutter , Oren Golov
CPC分类号： G06F3/0638 , G06F3/0604 , G06F3/0679 , G06F11/1008 , G06F12/08
摘要： A method for data storage includes storing data in a group of analog memory cells by writing respective input storage values to the memory cells in the group. After storing the data, respective output storage values are read from the analog memory cells in the group. Respective confidence levels of the output storage values are estimated, and the confidence levels are compressed. The output storage values and the compressed confidence levels are transferred from the memory cells over an interface to a memory controller.
摘要翻译： 一种用于数据存储的方法包括通过将相应的输入存储值写入组中的存储器单元来将数据存储在一组模拟存储器单元中。 在存储数据之后，从组中的模拟存储器单元读取相应的输出存储值。 估计输出存储值的相对置信水平，并且压缩置信水平。 输出存储值和压缩置信水平通过接口从存储器单元传送到存储器控制器。
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公开(公告)号：US08949684B1
公开(公告)日：2015-02-03
申请号：US12551583
申请日：2009-09-01
申请人： Ofir Shalvi , Barak Rotbard , Oren Golov , Micha Anholt , Uri Perlmutter
发明人： Ofir Shalvi , Barak Rotbard , Oren Golov , Micha Anholt , Uri Perlmutter
CPC分类号： G11C16/3404 , G06F11/1012 , G06F11/1072 , G11C5/005 , G11C16/00 , G11C2029/0411 , G11C2029/4402
摘要： A method for data storage includes assigning in a memory that includes one or more storage devices a first storage area for storage of user data, and a second storage area, which is separate from the first storage area, for storage of redundancy information related to the user data. Input data is processed to produce redundancy data, and the input data is stored in the first storage area using at least one first write command. The redundancy data is stored in the second storage area using at least one second write command, separate from the first write command.
摘要翻译： 一种用于数据存储的方法包括在包括一个或多个存储设备的存储器中分配用于存储用户数据的第一存储区域和与第一存储区域分开的第二存储区域，用于存储与第一存储区域相关的冗余信息 用户数据。 处理输入数据以产生冗余数据，并且使用至少一个第一写入命令将输入数据存储在第一存储区域中。 冗余数据使用与第一写入命令分开的至少一个第二写入命令存储在第二存储区域中。
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公开(公告)号：US08578243B2
公开(公告)日：2013-11-05
申请号：US13565122
申请日：2012-08-02
申请人： Naftali Sommer , Micha Anholt , Oren Golov , Uri Perlmutter , Shai Winter
发明人： Naftali Sommer , Micha Anholt , Oren Golov , Uri Perlmutter , Shai Winter
IPC分类号： G06F11/00
CPC分类号： G06F11/1048
摘要： 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.
摘要翻译： 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。
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