-
公开(公告)号：US09923652B2
公开(公告)日：2018-03-20
申请号：US13584541
申请日：2012-08-13
申请人： Ronald B. Lee , Edward Warner , Changwen Liu , Shaw Yuan
发明人： Ronald B. Lee , Edward Warner , Changwen Liu , Shaw Yuan
CPC分类号： H04H20/63
摘要： A network-capable device is configured to: automatically detect the presence of a MoCA network (or other network, depending on the network protocol in the application environment), and configure itself for communication on that network at the appropriate communication frequencies. The network-capable device can be configured to create a new network (e.g., a new MoCA network) if there is no network broadcast signal within a band. Preferably, the network-capable device requires little or no user intervention to configure itself for operation at network operating frequencies or to create a new network where none is detected.
-
2.发明授权公开(公告)号：US08418036B2
公开(公告)日：2013-04-09
申请号：US12581063
申请日：2009-10-16
申请人： Shaw Yuan , Arndt Mueller
发明人： Shaw Yuan , Arndt Mueller
IPC分类号： H03M13/00
CPC分类号： H04L1/0041 , H04L1/0057
摘要： According to some embodiments of the disclosed method and apparatus, systems and methods are provided that utilize extra payload capacity present in a symbol pad of a PHY payload to decrease the coding rate of an FEC coding scheme without increasing the symbol rate or decreasing the PHY rate of a corresponding data transmission. If a symbol pad length that would result from encoding a MAC frame using a default coding scheme would be at least as great as a parity length of the default coding scheme, and a new coding scheme maintaining the same parity length but having a reduced information bit length may be determined and used to encode the MAC frame. Owing the reduced information bit length, the new coding scheme has a reduced coding rate, but maintains the same number of OFDM symbols as the default coding scheme.
摘要翻译： 根据所公开的方法和装置的一些实施例，提供了利用存在于PHY有效负载的符号焊盘中的额外有效载荷能力来降低FEC编码方案的编码率而不增加符号率或降低PHY速率的系统和方法 的相应数据传输。 如果使用默认编码方案对MAC帧进行编码而产生的符号衬垫长度将至少与默认编码方案的奇偶校验长度一样大，并且保持相同奇偶校验长度但具有减小的信息位的新编码方案 可以确定长度并用于对MAC帧进行编码。 由于减少的信息比特长度，新的编码方案具有降低的编码率，但是与默认编码方案保持相同数量的OFDM符号。
-
3.发明授权System and method for adjusting a non-return to zero data stream input threshold 有权用于调整不归零数据流输入阈值的系统和方法公开(公告)号：US07107499B1
公开(公告)日：2006-09-12
申请号：US10077274
申请日：2002-02-15
CPC分类号： H03M5/02 , G11B20/10009 , H03M5/14 , H04L1/0021 , H04L25/063
摘要： A state machine method and system are provided for determining non-causal channel equalization thresholds. The method comprises: receiving a non-return to zero (NRZ) data stream encoded with forward error correction (FEC); setting x=0; in State 0, adjusting a third threshold (Vopt) in response to corrected bit errors; if x=0, setting a first and second threshold equal to the third threshold; in State 1, if x=0, simultaneously adjusting the first threshold and the second threshold, to minimize the total number of corrected bit errors; in State 2, following State 0, adjusting the first threshold, independent of the second threshold, to minimize the total number of errors; in State 3, following State 0, adjusting the second threshold, independent of the first threshold, to minimize the total number of errors; and, adding 1 to x and returning to State 0.
摘要翻译： 提供了一种用于确定非因果信道均衡阈值的状态机方法和系统。 该方法包括：接收用前向纠错（FEC）编码的不归零（NRZ）数据流; 设置x = 0; 在状态0中，响应于校正的比特错误来调整第三阈值（Vopt）; 如果x = 0，则设置等于第三阈值的第一和第二阈值; 在状态1中，如果x = 0，则同时调整第一阈值和第二阈值，以使校正的位错误的总数最小化; 在状态2中，在状态0之后，调整第一阈值，与第二阈值无关，以最小化错误的总数; 在状态3中，在状态0之后，调整第二阈值，独立于第一阈值，以最小化总错误数; 并将1加1并返回到状态0。
-
公开(公告)号：US07054387B2
公开(公告)日：2006-05-30
申请号：US10262334
申请日：2002-10-01
CPC分类号： H04L25/03012 , H04L25/061
摘要： A system and method are provided for feed-forward/feedback non-causal channel equalization in a communications system. The method comprises: receiving a non-return to zero (NRZ) data stream input; using three thresholds, estimating a first bit in the data stream; using two thresholds, determining a third bit value received subsequent to the first bit; comparing the first bit estimate to the third bit value; comparing the first bit estimate to a second bit value received prior to the first bit; and, in response to the comparisons, determining the value of the first bit. In some aspects of the method, the third bit value is determined in response to a prior third bit value determination. Determining a third bit value includes: distinguishing NRZ data stream inputs between fourth and fifth thresholds as a “0” if the prior third bit value was a “1”, and as a “1” if the prior third bit value was a “0”.
-
公开(公告)号：US20130039221A1
公开(公告)日：2013-02-14
申请号：US13584541
申请日：2012-08-13
申请人： RONALD B. LEE , EDWARD WARNER , CHANGWEN LIU , SHAW YUAN
发明人： RONALD B. LEE , EDWARD WARNER , CHANGWEN LIU , SHAW YUAN
IPC分类号： H04L12/28
CPC分类号： H04H20/63
摘要： A network-capable device is configured to: automatically detect the presence of a MoCA network (or other network, depending on the network protocol in the application environment), and configure itself for communication on that network at the appropriate communication frequencies. The network-capable device can be configured to create a new network (e.g., a new MoCA network) if there is no network broadcast signal within a band. Preferably, the network-capable device requires little or no user intervention to configure itself for operation at network operating frequencies or to create a new network where none is detected.
摘要翻译： 具有网络能力的设备被配置为：自动检测MoCA网络（或其他网络，取决于应用环境中的网络协议）的存在，并且以适当的通信频率将其自身配置在该网络上的通信。 如果在频带内没有网络广播信号，则可以将具有网络能力的设备配置为创建新网络（例如，新的MoCA网络）。 优选地，具有网络能力的设备需要很少或没有用户干预来配置自身以在网络操作频率下操作或者创建没有检测到的新网络。
-
公开(公告)号：US07734963B2
公开(公告)日：2010-06-08
申请号：US11589466
申请日：2006-10-30
IPC分类号： H03M13/00
CPC分类号： H04L25/03006 , H04L1/004 , H04L7/048 , H04L25/06 , H04L25/4923 , H04L2025/03477
摘要： A system and method are provided for non-causal channel equalization in a communications system. The method comprises: establishing three thresholds; receiving a binary serial data stream; comparing the first bit estimate in the data stream to a second bit value received prior to the first bit; comparing the first bit estimate to a third bit value received subsequent to the first bit; data stream inputs below the first threshold and above the third threshold are a “0” if both the second and third bits are “1” values, and as a “1” if either of the second and third values is a “1”; data stream inputs above the second threshold and below the third threshold are a “1” if both the second and third bits are a “0” value, and as a “0” if either of the second and third values is a “0”.
摘要翻译： 在通信系统中提供用于非因果信道均衡的系统和方法。 该方法包括：建立三个阈值; 接收二进制串行数据流; 将数据流中的第一比特估计与在第一比特之前接收的第二比特值进行比较; 将所述第一比特估计与所述第一比特之后接收的第三比特值进行比较; 如果第二和第三位均为“1”，则低于第一阈值且高于第三阈值的数据流输入为“0”，如果第二和第三值中的任一个为“1”，则为“1” 如果第二和第三位均为“0”，则高于第二阈值且低于第三阈值的数据流输入为“1”，如果第二和第三位中的任一个为“0”，则为“0” 。
-
7.发明授权Modified gain non-causal channel equalization using feed-forward and feedback compensation 有权使用前馈和反馈补偿的改进的增益非因果信道均衡公开(公告)号：US07206342B1
公开(公告)日：2007-04-17
申请号：US10652333
申请日：2003-08-29
IPC分类号： H04L27/08
CPC分类号： H04L25/03057 , H04L1/0047 , H04L1/0052 , H04L1/0056
摘要： A modified gain system and method are provided for non-causal channel equalization using feed-forward and feedback compensation. The method comprises: receiving a serial data stream first bit (present) input; comparing a second bit (past) value, received prior to the first bit input, to a third bit (future) value received subsequent to the first bit input; modifying the amplitude of the first bit input to compensate for the effect of the second and third bit values being equal; and, determining the value of the first bit input by comparing the amplitude modified first bit input to a Vopt threshold. When only one of the second and third bit values is a “1” value, a unity amplitude modifier is supplied. When the second and third bit values are a “1”, a low amplitude modifier is supplied. When the second and third bit values are a “0”, a high amplitude modifier is supplied.
摘要翻译： 提供了一种改进的增益系统和方法，用于使用前馈和反馈补偿的非因果信道均衡。 该方法包括：接收串行数据流第一位（存在）输入; 将在第一比特输入之前接收的第二比特（过去）值与在第一比特输入之后接收的第三比特（未来）值进行比较; 修改第一位输入的幅度以补偿第二和第三位值相等的影响; 以及通过将所述幅度修改的第一位输入与Vopt阈值进行比较来确定所述第一位输入的值。 当第二和第三位值中的仅一个值为“1”值时，提供单位幅度调节器。 当第二和第三位值为“1”时，提供低振幅修改器。 当第二和第三位值为“0”时，提供高幅度修改器。
-
公开(公告)号：US07024599B2
公开(公告)日：2006-04-04
申请号：US10020426
申请日：2001-12-07
IPC分类号： H03M13/00
CPC分类号： H04L25/03012
摘要： A system and method are provided for non-causal channel equalization in a communications system. The method comprises: receiving a non-return to zero (NRZ) data stream input; establishing thresholds to distinguish a first bit estimate; comparing the first bit estimate in the NRZ data stream to a second bit value received prior to the first bit, and a third bit received subsequent to the first bit; in response to the comparisons, determining the value of the first bit; tracking the NRZ data stream inputs in response to sequential bit value combinations; maintaining long-term averages of the tracked NRZ data stream inputs; adjusting the thresholds in response to the long-term averages; and, offsetting the threshold adjustments to account for the asymmetric noise distribution. Two methods are used to offset the threshold adjustments to account for the asymmetric noise distribution: forward error correction (FEC) decoding and tracking the ratio of bit values.
摘要翻译： 在通信系统中提供用于非因果信道均衡的系统和方法。 该方法包括：接收不归零（NRZ）数据流输入; 建立阈值以区分第一位估计; 将NRZ数据流中的第一比特估计与在第一比特之前接收的第二比特值进行比较，以及在第一比特之后接收的第三比特; 响应于比较，确定第一位的值; 响应于顺序位值组合来跟踪NRZ数据流输入; 维持追踪NRZ数据流输入的长期平均值; 根据长期平均值调整阈值; 并且抵消阈值调整以解决不对称噪声分布。 两种方法用于抵消阈值调整以解决不对称噪声分布：前向纠错（FEC）解码和跟踪比特值的比率。
-
9.发明授权Systems and methods for non-casual channel equalization in an asymmetrical noise environment 有权非对称噪声环境下非随机信道均衡的系统和方法公开(公告)号：US06961390B1
公开(公告)日：2005-11-01
申请号：US10066966
申请日：2002-02-04
CPC分类号： H04L25/03012 , H04L25/061
摘要： A system and method are provided for non-causal channel equalization in a communications system. The method comprises: receiving a non-return to zero (NRZ) data stream input; establishing thresholds to distinguish a first bit estimate; comparing the first bit estimate in the NRZ data stream to a second bit value received prior to the first bit, and a third bit received subsequent to the first bit; in response to the comparisons, determining the value of the first bit; tracking the NRZ data stream inputs in response to sequential bit value combinations; maintaining long-term averages of the tracked NRZ data stream inputs; adjusting the thresholds in response to the long-term averages; and, offsetting the threshold adjustments to account for the asymmetric noise distribution. Two methods are used to offset the threshold adjustments to account for the asymmetric noise distribution: forward error correction (FEC) decoding and tracking the ratio of bit values.
摘要翻译： 在通信系统中提供用于非因果信道均衡的系统和方法。 该方法包括：接收不归零（NRZ）数据流输入; 建立阈值以区分第一位估计; 将NRZ数据流中的第一比特估计与在第一比特之前接收的第二比特值进行比较，以及在第一比特之后接收的第三比特; 响应于比较，确定第一位的值; 响应于顺序位值组合来跟踪NRZ数据流输入; 维持追踪NRZ数据流输入的长期平均值; 根据长期平均值调整阈值; 并且抵消阈值调整以解决不对称噪声分布。 两种方法用于抵消阈值调整以解决不对称噪声分布：前向纠错（FEC）解码和跟踪比特值的比率。
-
公开(公告)号：US07895481B1
公开(公告)日：2011-02-22
申请号：US12766890
申请日：2010-04-25
IPC分类号： H03M13/00
CPC分类号： H04L25/06 , H04L1/004 , H04L25/03006 , H04L25/4923
摘要： A system and method are provided for non-causal channel equalization in a communications system. The method comprises: establishing three thresholds; receiving a binary serial data stream; comparing the first bit estimate in the data stream to a second bit value received prior to the first bit; comparing the first bit estimate to a third bit value received subsequent to the first bit; data stream inputs below the first threshold and above the third threshold are a “0” if both the second and third bits are “1” values, and as a “1” if either of the second and third values is a “1”; data stream inputs above the second threshold and below the third threshold are a “1” if both the second and third bits are a “0” value, and as a “0” if either of the second and third values is a “0”.
摘要翻译： 在通信系统中提供用于非因果信道均衡的系统和方法。 该方法包括：建立三个阈值; 接收二进制串行数据流; 将数据流中的第一比特估计与在第一比特之前接收的第二比特值进行比较; 将所述第一比特估计与所述第一比特之后接收的第三比特值进行比较; 如果第二和第三位均为“1”，则低于第一阈值且高于第三阈值的数据流输入为“0”，如果第二和第三值中的任一个为“1”，则为“1” 如果第二和第三位均为“0”，则高于第二阈值且低于第三阈值的数据流输入为“1”，如果第二和第三位中的任一个为“0”，则为“0” 。
-
-
-
-
-
-
-
-
-
搜索结果
25 条记录 (耗时 0.018 秒)
