公开(公告)号：US07463695B2

公开(公告)日：2008-12-09

申请号：US11487732

申请日：2006-07-17

Applicant: Warm Shaw Yuan ,  Daniel M. Castagnozzi ,  Keith Michael Conroy

Inventor： Warm Shaw Yuan ,  Daniel M. Castagnozzi ,  Keith Michael Conroy

IPC: H04L25/34 ,  H03M13/00

CPC classification number: H04L25/061 ,  H04L1/0047 ,  H04L25/4906 ,  H04L2025/03356

Abstract: A system and method are provided for five-level non-causal channel equalization in a communications system. The method comprises: receiving a non-return to zero (NRZ) data stream input; establishing a five-level threshold; comparing the first bit estimate 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; and, in response to the comparisons, determining the value of the first bit. Establishing a five-level threshold includes: establishing thresholds to distinguish a first bit value when the second and third bit values are a “1” value, when the second bit value is a “1” and the third bit value is a “0”, when the second bit value is a “0” and the third bit value is a “1”, when the second and third bit values are a “0” value, and an approximate midway threshold.

Abstract translation: 在通信系统中提供用于五级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; 建立五级门槛; 将所述第一比特估计与所述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; 并且响应于比较，确定第一位的值。 建立五级阈值包括：当第二位值为“1”且第三位值为“0”时，建立阈值以区分第二位值和第三位值为“1”值时的第一位值， 当第二位值为“0”且第三位值为“1”时，当第二位值和第三位值为“0”值时，大致中途阈值。

公开(公告)号：US07065685B2

公开(公告)日：2006-06-20

申请号：US11116612

申请日：2005-04-29

Applicant: Daniel M. Castagnozzi ,  Alan Michael Sorgi ,  Warm Shaw Yuan ,  Keith Michael Conroy

Inventor： Daniel M. Castagnozzi ,  Alan Michael Sorgi ,  Warm Shaw Yuan ,  Keith Michael Conroy

IPC: H03M13/00

CPC classification number: H04L25/03012

Abstract: A system and method are provided for non-causal channel equalization in a communications system. The method comprises: establishing a first threshold (V1) to distinguish a high probability “1” first bit estimate; establishing a second threshold (V0) to distinguish a high probability “0” first bit estimate; establishing a third threshold (Vopt) to distinguish first bit estimates between the first and second thresholds; receiving a non-return to zero (NRZ) 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; in response to the comparisons, determining the value of the first bit.

Abstract translation: 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：建立第一阈值（V 1）以区分高概率“1”第一比特估计; 建立第二阈值（V 0）以区分高概率“0”第一比特估计; 建立第三阈值（Vopt）以区分第一和第二阈值之间的第一位估计; 接收不归零（NRZ）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; 响应于比较，确定第一位的值。

公开(公告)号：US07289530B1

公开(公告)日：2007-10-30

申请号：US10413167

申请日：2003-04-14

Applicant: Warm Shaw Yuan ,  Daniel M. Castagnozzi ,  Alan Michael Sorgi ,  John Thomas Carr

Inventor： Warm Shaw Yuan ,  Daniel M. Castagnozzi ,  Alan Michael Sorgi ,  John Thomas Carr

IPC: H04J3/02 ,  H04J3/22 ,  H03M13/00

CPC classification number: H04L1/0065 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/2906 ,  H03M13/2948 ,  H03M13/618 ,  H04J3/1652 ,  H04L1/005 ,  H04L1/0057

Abstract: A system and method are provided for coding a frame in a packet communications system using a G.709 Digital Wrapper Frame format. The method comprises: accepting digital information; outer encoding the digital information with a Reed Solomon (RS) encoding scheme; interleaving the outer encoded information; inner encoding the interleaved information using a BCH encoding scheme; and, forming a G.709 Digital Wrapper frame including payload and parity bytes. More specifically, a standard DW superframe is formed with 122,368 bits of payload and 8192 bits of parity. The outer encoding process uses an RS(1023,1007) parent code. In one aspect, 15 groups of RS(781,765) and 1 group of RS(778,762) codewords are formed per superframe. The inner encoding process uses a BCH(2047,1959) parent code. In one aspect, 64 groups of BCH(2040,1952) codewords are formed per superframe.

Abstract translation: 提供了一种系统和方法，用于使用G.709数字包装机帧格式对分组通信系统中的帧进行编码。 该方法包括：接收数字信息; 用里德所罗门（RS）编码方案外部编码数字信息; 交织外编码信息; 使用BCH编码方案对交错信息进行内部编码; 并且形成包括有效载荷和奇偶校验字节的G.709数字封装帧。 更具体地，标准DW超帧形成有122,368位有效负载和8192位奇偶校验。 外部编码过程使用RS（1023,1007）父代码。 在一个方面，每个超帧形成15组RS（781,765）和1组RS（778,762）码字。 内部编码过程使用BCH（2047,1959）父代码。 在一个方面，每个超帧形成64组BCH（2040,1952）码字。

公开(公告)号：US06715113B1

公开(公告)日：2004-03-30

申请号：US09745764

申请日：2000-12-22

Applicant: George Beshara Bendak ,  Alan Michael Sorgi ,  Daniel M. Castagnozzi

Inventor： George Beshara Bendak ,  Alan Michael Sorgi ,  Daniel M. Castagnozzi

IPC: H03M1337

CPC classification number: H03M13/37 ,  H04L1/0045 ,  H04L1/20

Abstract: A system and method are provided for using an analysis of forward error corrections (FEC) in a digital communications signal as feedback information to improve the performance of an analog receiver system. The FEC decoder supplies the number of “1” bit and “0” bit corrections made to a control unit. In response to the FEC corrections, the control unit changes receiver control parameters. The control signal modifies processing in the receiver front end to achieve the fewest number of FEC corrections.

Abstract translation: 提供了一种用于使用数字通信信号中的前向纠错（FEC）分析的系统和方法作为反馈信息，以改善模拟接收机系统的性能。 FEC解码器提供对控制单元的“1”位和“0”位校正的数量。 响应于FEC校正，控制单元改变接收器控制参数。 控制信号修改接收机前端的处理，以实现最少数量的纠错。

公开(公告)号：US07139325B1

公开(公告)日：2006-11-21

申请号：US10150301

申请日：2002-05-17

Applicant: Warm Shaw Yuan ,  Daniel M. Castagnozzi ,  Keith Michael Conroy

Inventor： Warm Shaw Yuan ,  Daniel M. Castagnozzi ,  Keith Michael Conroy

IPC: H03D1/06

CPC classification number: H04L25/061 ,  H04L1/0047 ,  H04L25/4906 ,  H04L2025/03356

Abstract: A system and method are provided for five-level non-casual channel equalization in a communications system. The method comprises: receiving a non-return to zero (NRZ) data stream input; establishing a five-level threshold; comparing the first bit estimate 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; and, in response to the comparisons, determining the value of the first bit. Establishing a five-level threshold includes: establishing thresholds to distinguish a first bit value when the second and third bit values are a “1” value, when the second bit value is a “1” and the third bit value is a “0”, when the second bit value is a “0” and the third bit value is a “1”, when the second and third bit values are a “0” value, and an approximate midway threshold.

Abstract translation: 在通信系统中提供用于五级非随机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; 建立五级门槛; 将所述第一比特估计与所述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; 并且响应于比较，确定第一位的值。 建立五级阈值包括：当第二位值为“1”且第三位值为“0”时，建立阈值以区分第二位值和第三位值为“1”值时的第一位值， 当第二位值为“0”且第三位值为“1”时，当第二位值和第三位值为“0”值时，大致中途阈值。

公开(公告)号：US06915464B1

公开(公告)日：2005-07-05

申请号：US10077332

申请日：2002-02-15

Applicant: Daniel M. Castagnozzi ,  Warm Shaw Yuan ,  Keith Michael Conroy ,  Omer Fatih Acikel

Inventor： Daniel M. Castagnozzi ,  Warm Shaw Yuan ,  Keith Michael Conroy ,  Omer Fatih Acikel

IPC: H03M5/06 ,  H03M13/43 ,  H04B3/10 ,  H04L25/03 ,  H03M13/00

CPC classification number: H04L25/03012

Abstract: A system and a method are provided for non-causal channel equalization using error statistics. The method comprises: receiving a non-return to zero (NRZ) data stream input encoded with forward error correction (FEC); establishing a plurality of thresholds to generate a first bit estimate; 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; in response to the comparisons, determining the value of the first bit; FEC decoding the determined first bit value; and, using FEC error statistics to adjust the thresholds by evaluating the number of errors associated with a plurality of three-bit sequence combinations.

Abstract translation: 提供了一种用于使用误差统计的非因果信道均衡的系统和方法。 该方法包括：接收用前向纠错（FEC）编码的不归零（NRZ）数据流输入; 建立多个阈值以产生第一比特估计; 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; 响应于比较，确定第一位的值; FEC解码确定的第一比特值; 并且使用FEC误差统计来通过评估与多个三位序列组合相关联的错误的数量来调整阈值。

公开(公告)号：US07206342B1

公开(公告)日：2007-04-17

申请号：US10652333

申请日：2003-08-29

Applicant: Daniel M. Castagnozzi ,  Keith Michael Conroy ,  Warm Shaw Yuan ,  Omer Fatih Acikel

Inventor： Daniel M. Castagnozzi ,  Keith Michael Conroy ,  Warm Shaw Yuan ,  Omer Fatih Acikel

IPC: H04L27/08

CPC classification number: H04L25/03057 ,  H04L1/0047 ,  H04L1/0052 ,  H04L1/0056

Abstract: 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.

Abstract translation: 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

Applicant: Daniel M. Castagnozzi ,  Alan Michael Sorgi ,  Warm Shaw Yuan ,  Keith Michael Conroy

Inventor： Daniel M. Castagnozzi ,  Alan Michael Sorgi ,  Warm Shaw Yuan ,  Keith Michael Conroy

IPC: H03M13/00

CPC classification number: H04L25/03012

Abstract: 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.

Abstract translation: 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：US06961390B1

公开(公告)日：2005-11-01

申请号：US10066966

申请日：2002-02-04

Applicant: Warm Shaw Yuan ,  Daniel M. Castagnozzi ,  Alan Michael Sorgi ,  Keith Michael Conroy

Inventor： Warm Shaw Yuan ,  Daniel M. Castagnozzi ,  Alan Michael Sorgi ,  Keith Michael Conroy

IPC: H04L1/00 ,  H04B3/06 ,  H04L25/03 ,  H04L25/06 ,  H04L25/10

CPC classification number: H04L25/03012 ,  H04L25/061

Abstract: 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.

Abstract translation: 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：US06892336B1

公开(公告)日：2005-05-10

申请号：US09527163

申请日：2000-03-17

Applicant: Timothy E. Giorgetta ,  Alan M. Sorgi ,  Daniel M. Castagnozzi

Inventor： Timothy E. Giorgetta ,  Alan M. Sorgi ,  Daniel M. Castagnozzi

IPC: G06F11/00

CPC classification number: H04L1/24 ,  H04B3/46 ,  H04J2203/0082 ,  H04J2203/0085 ,  H04L1/0043 ,  H04L1/0052 ,  H04L1/0071

Abstract: A method for analyzing Gigabit Ethernet (GBE) and fiber channel protocol communications is provided which provides a more detailed understanding of the errors, than that provided under the IEEE 802.3z standard. The method creates an additional parity error signal which is not specified under the IEEE 802.3z standard. The parity error signals and IEEE 802.3z invalid code word signals are used to provide an analysis of whether the underlying communication errors are a result of 8B/10B coding word errors or running disparity errors. A system and apparatus to monitor performance in accordance with the above-mentioned method is also provided.

Abstract translation: 提供了一种用于分析千兆以太网（GBE）和光纤通道协议通信的方法，该方法比IEEE 802.3z标准提供的对错误的更详细的了解。 该方法创建一个附加的奇偶校验错误信号，该信号未在IEEE 802.3z标准下规定。 奇偶校验错误信号和IEEE 802.3z无效码字信号用于提供底层通信错误是否是8B / 10B编码字错误或运行视差错误的结果的分析。 还提供了根据上述方法来监视性能的系统和装置。