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1. 发明申请

US20100020860A1 Methods And Apparatus For Joint Adaptation Of Transmitter Transversal Filter In Communication Devices 有权
标题翻译：发射机横向滤波器在通信设备中的联合适应方法和装置
公开(公告)号：US20100020860A1
公开(公告)日：2010-01-28
申请号：US12178301
申请日：2008-07-23
申请人： Xingdong Dai , Dwight D. Daugherty , Max J. Olsen , Geoffrey Zhang
发明人： Xingdong Dai , Dwight D. Daugherty , Max J. Olsen , Geoffrey Zhang
IPC分类号： H04L27/01
CPC分类号： H04L25/03343 , H04L25/03057
摘要： Methods and apparatus are provided for joint adaptation of filter values in two communicating devices, such as a link partner and a link device. The disclosed joint adaptation process initially adapts the filter coefficient values in a first of the two communicating devices until a predefined stopping criteria is satisfied. Thereafter, the filter coefficient values in a second of the two communicating devices are adapted once the predefined stopping criteria for the first communicating device is satisfied. The filter coefficient values can comprise coefficient values of a multi-tap filter. The predefined stopping criteria may determine, for example, whether the first of the two communicating devices is overequalized. The filter coefficient values can be determined by including a contribution of only certain cursor tap values of the channel impulse response.
摘要翻译：提供了用于在诸如链路伙伴和链路设备的两个通信设备中联合适配过滤器值的方法和装置。所公开的联合适应过程最初适应两个通信设备中的第一个中的滤波器系数值，直到满足预定义的停止标准。此后，一旦满足了第一通信装置的预定义的停止标准，则适配两个通信装置中的第二个的滤波器系数值。滤波器系数值可以包括多抽头滤波器的系数值。预定义的停止标准可以例如确定两个通信设备中的第一个是否被过度预定。可以通过仅包括信道脉冲响应的某些光标抽头值的贡献来确定滤波器系数值。

2. 发明授权

US08514925B2 Methods and apparatus for joint adaptation of transmitter transversal filter in communication devices 有权
标题翻译：发射机横向滤波器在通信设备中联合适应的方法和装置
公开(公告)号：US08514925B2
公开(公告)日：2013-08-20
申请号：US12178301
申请日：2008-07-23
申请人： Xingdong Dai , Dwight D. Daugherty , Max J. Olsen , Geoffrey Zhang
发明人： Xingdong Dai , Dwight D. Daugherty , Max J. Olsen , Geoffrey Zhang
IPC分类号： H03H7/30
CPC分类号： H04L25/03343 , H04L25/03057
摘要： Methods and apparatus are provided for joint adaptation of filter values in two communicating devices, such as a link partner and a link device. The disclosed joint adaptation process initially adapts the filter coefficient values in a first of the two communicating devices until a predefined stopping criteria is satisfied. Thereafter, the filter coefficient values in a second of the two communicating devices are adapted once the predefined stopping criteria for the first communicating device is satisfied. The filter coefficient values can comprise coefficient values of a multi-tap filter. The predefined stopping criteria may determine, for example, whether the first of the two communicating devices is overequalized. The filter coefficient values can be determined by including a contribution of only certain cursor tap values of the channel impulse response.
摘要翻译：提供了用于在诸如链路伙伴和链路设备的两个通信设备中联合适配过滤器值的方法和装置。所公开的联合适应过程最初适应两个通信设备中的第一个中的滤波器系数值，直到满足预定义的停止标准。此后，一旦满足了第一通信装置的预定义的停止标准，则适配两个通信装置中的第二个的滤波器系数值。滤波器系数值可以包括多抽头滤波器的系数值。预定义的停止标准可以例如确定两个通信设备中的第一个是否被过度预定。可以通过仅包括信道脉冲响应的某些光标抽头值的贡献来确定滤波器系数值。

3. 发明授权

US07693088B2 Method and apparatus for data rate detection using a data eye monitor 有权
标题翻译：使用数据眼监视器进行数据速率检测的方法和装置
公开(公告)号：US07693088B2
公开(公告)日：2010-04-06
申请号：US11686144
申请日：2007-03-14
申请人： Dwight D. Daugherty , Mohammad S. Mobin , Gregory W. Sheets , Lane A. Smith , Paul H. Tracy
发明人： Dwight D. Daugherty , Mohammad S. Mobin , Gregory W. Sheets , Lane A. Smith , Paul H. Tracy
IPC分类号： H04L12/26 , H04J3/06 , H04B17/00
CPC分类号： H04L25/0262
摘要： Methods and apparatus are provided for data rate detection using a data eye monitor. The data rate is one of a plurality of data rates comprising a base rate and one or more divide-by-N multiples of the base rate, where N is an integer. The data rate of a received signal is detected by sampling the received signal; comparing the samples for a plurality of full rate data eyes associated with the received signal to determine if there is a mismatch between at least two predefined samples; and detecting the data rate by evaluating the comparison based on predefined criteria. The comparison can be performed by an exclusive or (XOR) logic gate for samples of at least two adjacent data eyes of a given rate.
摘要翻译：提供了使用数据眼监视器进行数据速率检测的方法和装置。数据速率是包括基本速率和基本速率的一个或多个除以N倍数的多个数据速率之一，其中N是整数。通过对接收到的信号进行采样来检测接收信号的数据速率; 比较与所接收的信号相关联的多个全速率数据眼睛的样本，以确定是否存在至少两个预定样本之间的不匹配; 以及通过基于预定标准评估比较来检测数据速率。可以通过异或（XOR）逻辑门对给定速率的至少两个相邻数据眼的样本执行比较。

4. 发明申请

US20080225734A1 METHOD AND APPARATUS FOR DATA RATE DETECTION USING A DATA EYE MONITOR 有权
标题翻译：使用数据眼监视器进行数据速率检测的方法和装置
公开(公告)号：US20080225734A1
公开(公告)日：2008-09-18
申请号：US11686144
申请日：2007-03-14
申请人： Dwight D. Daugherty , Mohammad S. Mobin , Gregory W. Sheets , Lane A. Smith , Paul H. Tracy
发明人： Dwight D. Daugherty , Mohammad S. Mobin , Gregory W. Sheets , Lane A. Smith , Paul H. Tracy
IPC分类号： H04J1/16
CPC分类号： H04L25/0262
摘要： Methods and apparatus are provided for data rate detection using a data eye monitor. The data rate is one of a plurality of data rates comprising a base rate and one or more divide-by-N multiples of the base rate, where N is an integer. The data rate of a received signal is detected by sampling the received signal; comparing the samples for a plurality of full rate data eyes associated with the received signal to determine if there is a mismatch between at least two predefined samples; and detecting the data rate by evaluating the comparison based on predefined criteria. The comparison can be performed by an exclusive or (XOR) logic gate for samples of at least two adjacent data eyes of a given rate.
摘要翻译：提供了使用数据眼监视器进行数据速率检测的方法和装置。数据速率是包括基本速率和基本速率的一个或多个除以N倍数的多个数据速率之一，其中N是整数。通过对接收到的信号进行采样来检测接收信号的数据速率; 比较与所接收的信号相关联的多个全速率数据眼睛的样本，以确定是否存在至少两个预定样本之间的不匹配; 以及通过基于预定标准评估比较来检测数据速率。可以通过异或（XOR）逻辑门对给定速率的至少两个相邻数据眼的样本执行比较。

5. 发明授权

US06542008B1 System and method for providing an impedance match of an output buffer to a transmission line 失效
标题翻译：用于提供输出缓冲器与传输线的阻抗匹配的系统和方法
公开(公告)号：US06542008B1
公开(公告)日：2003-04-01
申请号：US09723504
申请日：2000-11-28
申请人： Dwight D. Daugherty , Johannes G. Ransijn , Gregory C. Salvador , James D. Yoder , Kenneth D. Gaynor
发明人： Dwight D. Daugherty , Johannes G. Ransijn , Gregory C. Salvador , James D. Yoder , Kenneth D. Gaynor
IPC分类号： H03K1716
CPC分类号： H04L25/028 , H04L25/0278
摘要： A system and method are provided for providing an impedance match of an output buffer to a transmission line without significantly increasing the power consumption of the output buffer. A system and method are also provided for providing an impedance match of an output buffer to a transmission line, while still allowing for an adjustable output swing as is required for loads such as laser transmitters and optical modulators.
摘要翻译：提供了一种系统和方法，用于提供输出缓冲器与传输线的阻抗匹配，而不会显着增加输出缓冲器的功耗。还提供了一种用于提供输出缓冲器与传输线的阻抗匹配的系统和方法，同时仍然允许如负载（例如激光发射器和光学调制器）所需的可调输出摆幅。

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