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11.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。
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12.发明授权System and method for redundant path connections in digital communications network 有权数字通信网络中冗余路径连接的系统和方法公开(公告)号：US06961366B1
公开(公告)日：2005-11-01
申请号：US09753185
申请日：2001-01-02
IPC分类号： H04L25/60
CPC分类号： H04L25/20 , H04L25/0272
摘要： A system and method for providing redundancy in an integrated circuit (IC) relay device has been disclosed. The relay device accepts communications on a first and second receive path. The relay device monitors communications on both the receive paths, and selects a path having a high degree of integrity. Likewise, the relay selectively supplies communications on a first and second transmit path. The relay device selects the transmit path having the proper measure of communication integrity. Communications integrity can be based upon internally monitored criteria such as bit error rate, synchronization, clock signals, and forward error correction. Alternately, the integrity is determined external to the relay, and the relay responds to external switch commands.
摘要翻译： 已经公开了用于在集成电路（IC）中继装置中提供冗余的系统和方法。 中继设备接受第一和第二接收路径上的通信。 中继设备监视两个接收路径上的通信，并选择具有高度完整性的路径。 类似地，继电器选择性地在第一和第二发射路径上提供通信。 中继设备选择具有适当测量通信完整性的发送路径。 通信完整性可以基于内部监控的标准，例如误码率，同步，时钟信号和前向纠错。 或者，完整性在继电器外部确定，继电器响应外部开关指令。
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13.发明授权System and method for programming synchronization criteria in a multidimensional digital frame structure 有权用于在多维数字帧结构中编程同步标准的系统和方法公开(公告)号：US06847657B1
公开(公告)日：2005-01-25
申请号：US09745774
申请日：2000-12-22
IPC分类号： H04J3/06
CPC分类号： H04J3/0608
摘要： A system and method have been provided for programming synchronization features of a multidimensional digital frame structure. Such a frame structure acts as a digital wrapper and includes overhead, payload, and forward error correction (FEC) sections. Words in the overhead section are used to synchronize the frame structure. The described invention permits the number of frames, with recognizable frame synchronization bytes (FSBs), required for synchronization to be made programmable, so that the system and method are flexible for changes in communication protocols. This flexibility also impacts the number, value, location, bandwidth, and the bit error rate (BER) of the located FSBs.
摘要翻译： 已经提供了一种用于编程多维数字帧结构的同步特征的系统和方法。 这样的帧结构充当数字封装，并且包括开销，有效载荷和前向纠错（FEC）部分。 开销部分中的字用于同步帧结构。 所描述的发明允许使可同步的可识别帧同步字节（FSB）的帧数可编程，使得系统和方法对于通信协议的改变是灵活的。 这种灵活性还会影响所在FSB的数量，价值，位置，带宽和误码率（BER）。
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14.发明授权System and method for selectively broadcasting a multidimensional digital frame structure 有权用于选择性地广播多维数字帧结构的系统和方法公开(公告)号：US07746855B1
公开(公告)日：2010-06-29
申请号：US11111471
申请日：2005-04-21
IPC分类号： H04L12/56
CPC分类号： H04J3/0605 , H04J3/1605
摘要： A system and method have been provided for programming synchronization features of a multidimensional digital frame structure. Such a frame structure acts as a digital wrapper and includes overhead, payload, and forward error correction (FEC) sections. Words in the overhead section are used to selectively synchronize the broadcast frame structure at a plurality of network nodes. The described invention permits the frame synchronization bytes (FSBs) to be made programmable, so that the system and method are flexible for changes in communication protocols, as well for the selective exclusion of nodes. This flexibility also impacts the number, the location, bandwidth, and the bit error rate (BER) of the located FSBs.
摘要翻译： 已经提供了一种用于编程多维数字帧结构的同步特征的系统和方法。 这样的帧结构充当数字封装，并且包括开销，有效载荷和前向纠错（FEC）部分。 开销部分中的字用于选择性地同步多个网络节点处的广播帧结构。 所描述的发明允许帧同步字节（FSB）被编程，使得系统和方法对于通信协议的改变以及对节点的选择性排除是灵活的。 这种灵活性还会影响所在FSB的数量，位置，带宽和误码率（BER）。
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公开(公告)号：US07149938B1
公开(公告)日：2006-12-12
申请号：US10317439
申请日：2002-12-12
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” 。
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16.发明授权System and method for selectively scrambling multidimensional digital frame structure communications 有权用于选择性地加扰多维数字帧结构通信的系统和方法公开(公告)号：US07023881B1
公开(公告)日：2006-04-04
申请号：US09747124
申请日：2000-12-22
CPC分类号： H04L25/03866 , H04J3/1611
摘要： A system and method have been provided to increase security in scrambled communications by periodically changing the seed masks used to generate the scrambling algorithms at the transmitter and receiver. The scrambling algorithm is changed by periodically modifying the seed masks which establishes the initial state of the scrambling algorithm generators. The same seed mask key is passed through an auxiliary communication channel to the receiver to insure that matching descrambling algorithms are generated.
摘要翻译： 已经提供了一种系统和方法，以通过周期性地改变在发射机和接收机处产生加扰算法的种子掩码来提高加密通信的安全性。 通过周期性修改建立加扰算法生成器的初始状态的种子掩码来改变加扰算法。 相同的种子掩码密钥通过辅助通信信道传递到接收机，以确保产生匹配的解扰算法。
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17.发明授权公开(公告)号：US06973100B1
公开(公告)日：2005-12-06
申请号：US09746490
申请日：2000-12-22
CPC分类号： H04L7/042 , H04J3/0605
摘要： A system and method have been provided for programming synchronization features of a multidimensional digital frame structure. Such a frame structure acts as a digital wrapper, and includes overhead, payload, and forward error correction (FEC) sections. Words in the overhead section are used to synchronize the frame structure. The described invention permits the location of the frame synchronization bytes (FSBs) to be made programmable, so that the system and method are flexible for changes in communication protocols. This flexibility also impacts the number, the value, bandwidth, and the allowable bit error rate (BER) of the located FSBs.
摘要翻译： 已经提供了一种用于编程多维数字帧结构的同步特征的系统和方法。 这种帧结构充当数字封装，并且包括开销，有效载荷和前向纠错（FEC）部分。 开销部分中的字用于同步帧结构。 所描述的发明允许帧同步字节（FSB）的位置可编程，使得系统和方法对于通信协议的改变是灵活的。 这种灵活性还会影响所在FSB的数量，值，带宽和允许的误码率（BER）。
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18.发明授权公开(公告)号：US06961350B1
公开(公告)日：2005-11-01
申请号：US09745370
申请日：2000-12-22
CPC分类号： H04J3/0602
摘要： A system and method have been provided to segment communications between relay nodes in a network using digitally wrapped, or frame structure communications. The overhead bytes in the frame are given special functions, to enable processes such as synchronization or an auxiliary communications channel. Overhead byte quantities, locations, values, or combinations of the above are used to signal the processes. Nodes in the network can be selectively programmed to recognize the overhead byte signals that trigger the processes.
摘要翻译： 已经提供了一种用于使用数字包装或帧结构通信来分割网络中的中继节点之间的通信的系统和方法。 帧中的开销字节被赋予特殊功能，以允许诸如同步或辅助通信信道的处理。 使用上述字节数量，位置，值或上述组合来表示过程。 可以选择性地编程网络中的节点来识别触发进程的开销字节信号。
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19.发明授权System and method for selectively broadcasting a multidimensional digital frame structure 有权用于选择性地广播多维数字帧结构的系统和方法公开(公告)号：US06931006B1
公开(公告)日：2005-08-16
申请号：US09745793
申请日：2000-12-22
CPC分类号： H04J3/0605 , H04J3/1605
摘要： A system and method have been provided for programming synchronization features of a multidimensional digital frame structure. Such a frame structure acts as a digital wrapper and includes overhead, payload, and forward error correction (FEC) sections. Words in the overhead section are used to selectively synchronize the broadcast frame structure at a plurality of network nodes. The described invention permits the frame synchronization bytes (FSBs) to be made programmable, so that the system and method are flexible for changes in communication protocols, as well for the selective exclusion of nodes. This flexibility also impacts the number, the location, bandwidth, and the bit error rate (BER) of the located FSBs.
摘要翻译： 已经提供了一种用于编程多维数字帧结构的同步特征的系统和方法。 这样的帧结构充当数字封装，并且包括开销，有效载荷和前向纠错（FEC）部分。 开销部分中的字用于选择性地同步多个网络节点处的广播帧结构。 所描述的发明允许帧同步字节（FSB）被编程，使得系统和方法对于通信协议的改变以及对节点的选择性排除是灵活的。 这种灵活性还会影响所在FSB的数量，位置，带宽和误码率（BER）。
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20.发明授权公开(公告)号：US07054336B1
公开(公告)日：2006-05-30
申请号：US09746152
申请日：2000-12-22
IPC分类号： H04J3/06
CPC分类号： H04L1/0083 , H04J3/0605
摘要： A system and method have been provided for programming synchronization features of a multidimensional digital frame structure. Such a frame structure acts as a digital wrapper and includes overhead, payload, and forward error correction (FEC) sections. Words in the overhead section are used to synchronize the frame structure. The described invention permits the quantity of the frame synchronization bytes (FSBs) to be made programmable, so that the system and method are flexible for changes in communication protocols.
摘要翻译： 已经提供了一种用于编程多维数字帧结构的同步特征的系统和方法。 这样的帧结构充当数字封装，并且包括开销，有效载荷和前向纠错（FEC）部分。 开销部分中的字用于同步帧结构。 所描述的发明允许帧同步字节（FSB）的量可编程，使得系统和方法对于通信协议的改变是灵活的。
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