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31. 发明授权

US07180959B2 Technique for utilizing spare bandwidth resulting from the use of a code in a multi-level signaling system 有权
标题翻译：利用在多级信令系统中使用代码产生的备用带宽的技术
公开(公告)号：US07180959B2
公开(公告)日：2007-02-20
申请号：US10878342
申请日：2004-06-29
申请人： Anthony Bessios , Jared Zerbe
发明人： Anthony Bessios , Jared Zerbe
IPC分类号： H04L25/34 , H04L25/49
CPC分类号： H04L25/4915 , H04L25/4919
摘要： A technique for utilizing spare bandwidth resulting from the use of a code in a multi-level signaling system is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for utilizing spare bandwidth resulting from the use of a code in a multi-level signaling system, wherein the code has a characteristic wherein a signal transition is periodically unused. Such a method may comprise modifying the code such that the periodically unused signal transition is used to represent additional information.
摘要翻译：公开了一种利用在多级信令系统中使用代码产生的备用带宽的技术。在一个特定示例性实施例中，该技术可以被实现为用于利用由多级信令系统中的代码使用产生的备用带宽的方法，其中该代码具有周期性地不使用信号转换的特性。这种方法可以包括修改代码，使得周期性地使用的信号转换用于表示附加信息。

32. 发明授权

US07180957B2 Technique for utilizing spare bandwidth resulting from the use of a transition-limiting code in a multi-level signaling system 失效
标题翻译：利用在多级信令系统中使用转移限制码产生的备用带宽的技术
公开(公告)号：US07180957B2
公开(公告)日：2007-02-20
申请号：US10667355
申请日：2003-09-23
申请人： Anthony Bessios , William Stonecypher , Jared Zerbe , Carl Werner
发明人： Anthony Bessios , William Stonecypher , Jared Zerbe , Carl Werner
IPC分类号： H04L25/34 , H04L25/49
CPC分类号： H04L25/4915 , H04L25/4919
摘要： A technique for utilizing spare bandwidth resulting from the use of a transition-limiting code in a multi-level signaling system is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for utilizing spare bandwidth resulting from the use of a transition-limiting code in a multi-level signaling system, wherein the transition-limiting code has a characteristic wherein a signal level is periodically unused. Such a method may comprise modifying the transition-limiting code such that the periodically unused signal level is used to represent additional information.
摘要翻译：公开了一种利用在多级信令系统中使用转移限制码产生的备用带宽的技术。在一个特定示例性实施例中，该技术可以被实现为用于在多级信令系统中利用由转换限制码使用产生的备用带宽的方法，其中转移限制码具有其中信号电平为定期未使用这种方法可以包括修改转换限制码，使得周期性地使用的信号电平用于表示附加信息。

33. 发明授权

US07110683B2 Compensation of polarization mode dispersion in single mode fiber for maximum-likelihood sequence estimation 有权
公开(公告)号：US07110683B2
公开(公告)日：2006-09-19
申请号：US10035928
申请日：2001-12-26
申请人： Anthony Bessios
发明人： Anthony Bessios
IPC分类号： H04B10/06
CPC分类号： H04B10/2572
摘要： An output signal of a single mode fiber (SMF) is spectrally shaped to achieve characteristics of a predefined channel “target” response. The target response is that of a partial-response, maximum-likelihood channel with additive white Gaussian noise. A receiver employs a maximum-likelihood sequence estimation (MLSE) detector having its detection algorithm, such as a Viterbi algorithm (VA), matched to the target response. Thus, state, branch, and path metric calculations for a Viterbi trellis may be optimized for a channel having this target response.

34. 发明申请

US20060158225A1 High speed signaling system with adaptive transmit pre-emphasis and reflection cancellation 有权
公开(公告)号：US20060158225A1
公开(公告)日：2006-07-20
申请号：US11386984
申请日：2006-03-21
申请人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
发明人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
IPC分类号： H03K19/094
CPC分类号： H04L25/49 , H04B1/04 , H04B1/0475 , H04B2001/0416 , H04L25/025 , H04L25/028 , H04L25/0282 , H04L25/03019 , H04L25/03343 , H04L25/03885 , H04L25/061 , H04L25/4917 , H04L2025/03363 , H04L2025/03802
摘要： A signaling system having an equalizing transmitter and equalizing receiver. The equalizing transmitter transmits a signal to a receive circuit. A first sampling circuit within the equalizing receiver samples the signal to determine whether the signal exceeds a first threshold, and a second sampling circuit within the equalizing receiver samples the signal to determine whether the signal exceeds a second threshold. A drive strength of the equalizing transmitter and a drive strength of an equalizing signal driver within the equalizer are adjusted based, at least in part, on whether the first signal exceeds the first and second thresholds.

35. 发明申请

US20060126751A1 Technique for disparity bounding coding in a multi-level signaling system 审中-公开
标题翻译：多级信令系统中视差边界编码技术
公开(公告)号：US20060126751A1
公开(公告)日：2006-06-15
申请号：US11008665
申请日：2004-12-10
申请人： Anthony Bessios
发明人： Anthony Bessios
IPC分类号： H04L5/12 , H04B14/04
CPC分类号： H04L25/4919 , H03M5/20
摘要： A technique for coding information for transmission in a multi-level signaling system is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for coding information for transmission in a multi-level signaling system. The method comprises receiving information organized into multiple information sets, mapping the received information according to the contents of each information set, and changing a current weight polarity of the mapped information based at least in part upon an accumulated weight polarity of previously encoded information so as to provide a substantially DC balanced codeword that is substantially DC balanced for transmission in a multi-level signaling system.
摘要翻译：公开了一种在多级信令系统中对用于传输的信息进行编码的技术。在一个特定示例性实施例中，该技术可以被实现为用于对用于在多级信令系统中传输的信息进行编码的方法。该方法包括接收组织成多个信息集的信息，根据每个信息集的内容映射所接收的信息，以及至少部分地基于先前编码的信息的累积权重极限来改变映射信息的当前权重极性，以便以提供基本上直流平衡的码字，用于在多级信令系统中进行传输。

36. 发明申请

US20070080718A1 HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASIS 有权
标题翻译：具有自适应发射预报功能的高速信号系统
公开(公告)号：US20070080718A1
公开(公告)日：2007-04-12
申请号：US11538333
申请日：2006-10-03
申请人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
发明人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
IPC分类号： H03K19/094
CPC分类号： H04L25/49 , H04B1/04 , H04B1/0475 , H04B2001/0416 , H04L25/025 , H04L25/028 , H04L25/0282 , H04L25/03019 , H04L25/03343 , H04L25/03885 , H04L25/061 , H04L25/4917 , H04L2025/03363 , H04L2025/03802
摘要： A high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level.
摘要翻译：具有自适应发送预加重的高速信号系统。发射电路具有多个输出驱动器，以将第一信号输出到信号路径上。接收电路被耦合以经由信号路径接收第一信号并被配置为生成第一信号是否超过阈值电平的指示。第一阈值控制电路被耦合以从接收电路接收指示，并且被配置为根据第一信号是否超过阈值电平来调整阈值电平。驱动强度控制电路被耦合以从接收电路接收指示，并且被配置为根据第一信号是否超过阈值电平来调整多个输出驱动器中的至少一个输出驱动器的驱动强度。

37. 发明授权

US07187873B2 Compensation of polarization mode dispersion in single mode fiber for maximum-likelihood sequence estimation 有权
标题翻译：用于最大似然序列估计的单模光纤中偏振模色散的补偿
公开(公告)号：US07187873B2
公开(公告)日：2007-03-06
申请号：US11378900
申请日：2006-03-17
申请人： Anthony Bessios
发明人： Anthony Bessios
IPC分类号： H04B10/06
CPC分类号： H04B10/2572
摘要： An output signal of a single mode fiber (SMF) is spectrally shaped to achieve characteristics of a predefined channel “target” response. The target response is that of a partial-response, maximum-likelihood channel with additive white Gaussian noise. A receiver employs a maximum-likelihood sequence estimation (MLSE) detector having its detection algorithm, such as a Viterbi algorithm (VA), matched to the target response. Thus, state, branch, and path metric calculations for a Viterbi trellis may be optimized for a channel having this target response.
摘要翻译：单模光纤（SMF）的输出信号被光谱整形，以实现预定义的通道“目标”响应的特性。目标响应是具有加性白高斯噪声的部分响应最大似然信道的响应。接收机采用具有与目标响应相匹配的检测算法（例如维特比算法（VA））的最大似然序列估计（MLSE）检测器。因此，维特比网格的状态，分支和路径度量计算可以针对具有该目标响应的信道进行优化。

38. 发明授权

US07113550B2 Technique for improving the quality of digital signals in a multi-level signaling system 失效
标题翻译：提高多级信号系统数字信号质量的技术
公开(公告)号：US07113550B2
公开(公告)日：2006-09-26
申请号：US10314985
申请日：2002-12-10
申请人： William Stonecypher , Anthony Bessios , Amita Agarwal
发明人： William Stonecypher , Anthony Bessios , Amita Agarwal
IPC分类号： H04L25/34
CPC分类号： H04L25/4915 , H04L25/4919
摘要： A technique for improving the quality of digital signals in a multi-level signaling system is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for improving the quality of transmitted digital signals in a multi-level signaling system wherein digital signals representing more than one bit of information may be transmitted at more than two signal levels on a single transmission medium. The method comprises encoding digital values represented by sets of N bits to provide corresponding sets of P symbols, wherein each set of P symbols is selected to eliminate full-swing transitions between successive digital signal transmissions. The method also comprises transmitting the sets of P symbols.
摘要翻译：公开了一种用于提高多级信令系统中的数字信号质量的技术。在一个特定的示例性实施例中，该技术可以被实现为用于在多级信令系统中提高传输的数字信号的质量的方法，其中表示多于一位的信息的数字信号可以在多于一个的信号级上传输单传输介质。该方法包括编码由N个比特组表示的数字值以提供相应的P个符号组，其中选择每组P个符号以消除连续的数字信号传输之间的全摆幅转换。该方法还包括传输P个符号集合。

39. 发明申请

US20050134305A1 High speed signaling system with adaptive transmit pre-emphasis 有权
标题翻译：具有自适应发送预加重的高速信号系统
公开(公告)号：US20050134305A1
公开(公告)日：2005-06-23
申请号：US10740087
申请日：2003-12-17
申请人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
发明人： Vladimir Stojanovic , Andrew Ho , Anthony Bessios , Fred Chen , Elad Alon , Mark Horowitz
IPC分类号： H03K19/003 , H04L25/02 , H04L25/03 , H04L25/06 , H04L25/49
CPC分类号： H04L25/49 , H04B1/04 , H04B1/0475 , H04B2001/0416 , H04L25/025 , H04L25/028 , H04L25/0282 , H04L25/03019 , H04L25/03343 , H04L25/03885 , H04L25/061 , H04L25/4917 , H04L2025/03363 , H04L2025/03802
摘要： A signaling system having first and second sampling circuits and an output driver circuit. The first sampling circuit samples a first signal generated by the output driver circuit to determine whether the first signal exceeds a first threshold. The second sampling circuit samples the first signal to determine whether the first signal exceeds a second threshold. The drive strength of the output driver circuit is adjusted based, at least in part, on whether the first signal exceeds the first and second thresholds, and the second threshold is adjusted based, at least in part, on whether the first signal exceeds the second threshold.
摘要翻译：一种具有第一和第二采样电路和输出驱动电路的信号系统。第一采样电路对由输出驱动器电路产生的第一信号进行采样，以确定第一信号是否超过第一阈值。第二采样电路对第一信号进行采样以确定第一信号是否超过第二阈值。至少部分地基于第一信号是否超过第一和第二阈值来调整输出驱动器电路的驱动强度，并且至少部分地基于第一信号是否超过第二信号来调整第二阈值阈。

40. 发明授权

US06862413B2 Compensation for polarization mode dispersion in single mode fiber 失效
标题翻译：单模光纤偏振模色散补偿
公开(公告)号：US06862413B2
公开(公告)日：2005-03-01
申请号：US10036750
申请日：2001-12-21
申请人： Anthony Bessios
发明人： Anthony Bessios
IPC分类号： G02B6/34 , H04B10/18 , H04B10/06
CPC分类号： H04B10/2569
摘要： A receiver employs non-linear threshold compensation to adjust input sample values from a single mode fiber to mitigate effects of polarization mode dispersion. A difference S between values for i) a decision for the current input sample and ii) a decision for the previous input sample is generated that indicates whether a transition between logic values occurred in the input data and the direction of transition (sign/phase). Two values are generated to determine a magnitude c of correction combined with the sign/phase (difference S) to generate a correction value. An error value e is generated as the magnitude of the difference between i) the decision for the input sample and ii) the input sample. A value d is calculated as the magnitude of the difference between i) the current input sample and ii) the previous input sample is also generated. The value d represents a relative “closeness” in value between two consecutive input samples. A magnitude c of correction combined with S is dependent upon the current states of S, e, and d and is based on detection of the presence or absence of a data transition, closeness in value between two consecutive input samples, and the error between the current sample and the decision for the current sample. The correction value is then combined with the current sample yk to generate a compensated sample. A hard decision is then generated for the compensated sample. Observation of transmitted data patterns for bit combinations through a single mode fiber at the transmission rate, e.g., 10 Gbps, allows for generation of a table of rules to determine the threshold levels L of each decision device. As decisions are generated for data, threshold value L may then be modified given the decisions for previous samples.
摘要翻译：接收机采用非线性阈值补偿来调整来自单模光纤的输入采样值，以减轻偏振模色散的影响。产生用于i）当前输入样本的判定和ii）对先前输入样本的判定的值之间的差值S，其指示在输入数据中的逻辑值和转换方向（符号/相位）之间的转换是否发生，。产生两个值以确定与符号/相位（差值S）组合的校正量值c以产生校正值。产生误差值e作为i）输入样本的判定和ii）输入样本之间的差值的大小。值d被计算为i）当前输入样本与ii）之间的差值的大小，也产生先前的输入样本。值d表示两个连续输入样本之间的值的相对“接近度”。校正与S结合的量值c取决于S，e和d的当前状态，并且基于检测数据转换的存在或不存在，两个连续输入样本之间的接近度以及在两个连续输入样本之间的误差当前样本和当前样本的决定。然后将校正值与当前样本yk组合以产生补偿样本。然后为补偿样本生成一个硬决定。通过单模光纤以传输速率（例如10Gbps）观察用于比特组合的发送数据模式，允许生成规则表以确定每个决策设备的阈值水平L. 当为数据生成决策时，可以根据先前样本的决定修改阈值L。

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