公开(公告)号：US10374636B1

公开(公告)日：2019-08-06

申请号：US15090170

申请日：2016-04-04

Applicant: ALTERA CORPORATION

Inventor： Haiyun Yang ,  Martin Langhammer ,  Peng Li ,  Divya Vijayaraghavan

IPC: H04L1/00 ,  H03M13/29 ,  H03M13/13

Abstract: One embodiment relates a method of receiving data from a multi-lane data link. The data is encoded with an FEC code having a block length. The data is FEC encoded at a bus width which is specified within particular constraints. One constraint is that the FEC encoder bus width in bits is an exact multiple of a number of bits per symbol in the data. Another constraint may be that the FEC code block length is an exact multiple of the FEC encoder bus width. Another constraint may be that the FEC encoder bus width is an exact multiple of a number of serial lanes of the multi-lane interface. Other embodiments and features are also disclosed.

公开(公告)号：US09876519B1

公开(公告)日：2018-01-23

申请号：US15582164

申请日：2017-04-28

Applicant: ALTERA CORPORATION

Inventor： Donald Alderrou ,  Peng Li ,  Weiqi Ding

IPC: H04B1/38 ,  H04B17/309 ,  H04L27/01

CPC classification number: H04B1/38 ,  H04B17/309 ,  H04L25/03343 ,  H04L25/03885 ,  H04L27/01

Abstract: One embodiment relates to a method of automated adaptation of a transmitter equalizer. A multi-dimensional search space of tap settings for the transmitter equalizer is divided into multiple single-dimensional search spaces, each single-dimensional search space being associated with a single tap of the transmitter equalizer. The multiple single-dimensional search spaces are searched in series, and a tap for a single-dimensional search space is set before searching a next single-dimensional search space. Another embodiment relates to a transceiver with adaptation circuitry configured to implement the above-described method. Other embodiments, aspects, and features are also disclosed.

公开(公告)号：US09331714B1

公开(公告)日：2016-05-03

申请号：US13871227

申请日：2013-04-26

Applicant: ALTERA CORPORATION

Inventor： Haiyun Yang ,  Martin Langhammer ,  Peng Li ,  Divya Vijayaraghavan

IPC: G06F11/00 ,  H03M13/05

CPC classification number: H03M13/05 ,  H03M13/1515 ,  H04L1/20 ,  H04L12/40 ,  H04L12/40013 ,  H04L25/14

Abstract: One embodiment relates a method of receiving data from a multi-lane data link. The data is encoded with an FEC code having a block length. The data is FEC decoded at a bus width which is specified within particular constraints. One constraint is that the FEC decoder bus width in bits is an exact multiple of a number of bits per symbol in the data. Another constraint may be that the FEC code block length is an exact multiple of the FEC decoder bus width. Another constraint may be that the FEC decoder bus width is an exact multiple of a number of serial lanes of the multi-lane interface. Other embodiments and features are also disclosed.

Abstract translation: 一个实施例涉及从多通道数据链路接收数据的方法。 数据用具有块长度的FEC码进行编码。 该数据在特定约束条件下指定的总线宽度进行FEC解码。 一个约束是FEC解码器总线宽度（以位为单位）是数据中每个符号数位数的精确倍数。 另一个约束可能是FEC码块长度是FEC解码器总线宽度的精确倍数。 另一个约束可能是FEC解码器总线宽度是多通道接口的多个串行通道的精确倍数。 还公开了其它实施例和特征。

公开(公告)号：US09405865B2

公开(公告)日：2016-08-02

申请号：US14133147

申请日：2013-12-18

Applicant: Altera Corporation

Inventor： Peng Li ,  Masashi Shimanouchi ,  Thungoc M. Tran ,  Sergey Shumarayev

IPC: G06F7/60 ,  G06F17/50

CPC classification number: G06F17/5009 ,  G06F17/5036 ,  G06F2217/10

Abstract: A link simulation tool for simulating high-speed communications link systems is provided. Communications links may include link subsystems such as transmit (TX) circuitry, receive (TX) circuitry, oscillator circuits that provide reference clock signals to the TX and RX circuitry, and channels that link the TX and RX circuitry. The link simulation tool may model each of the subsystems using behavioral models. The behavioral models may include characteristic functions such as transfer functions, probability density functions, and eye characteristics. The link simulation tool may have a link analysis engine that is capable of performing two-dimensional (two-variable) convolution operations and in applying dual-domain (frequency-time) transformations on the characteristic functions provided by the behavioral models to simulate the performance of the link system. The link simulation tool may have an input screen that allows a user to specify desired link parameters and a data display screen that display simulated results.

Abstract translation: 提供了一种用于模拟高速通信链路系统的链路仿真工具。 通信链路可以包括链路子系统，例如发射（TX）电路，接收（TX）电路，向TX和RX电路提供参考时钟信号的振荡器电路，以及链接TX和RX电路的信道。 链接仿真工具可以使用行为模型对每个子系统进行建模。 行为模型可以包括特征功能，例如传递函数，概率密度函数和眼睛特征。 链路仿真工具可以具有能够执行二维（双变量）卷积运算并且对由行为模型提供的特征函数应用双域（频率 - 时间）变换以模拟性能的链路分析引擎 的链接系统。 链接仿真工具可以具有允许用户指定期望的链接参数的输入屏幕和显示模拟结果的数据显示屏幕。

公开(公告)号：US20140107997A1

公开(公告)日：2014-04-17

申请号：US14133147

申请日：2013-12-18

Applicant: Altera Corporation

Inventor： Peng Li ,  Masashi Shimanouchi ,  Thungoc M. Tran ,  Sergey Shumarayev

IPC: G06F17/50

CPC classification number: G06F17/5009 ,  G06F17/5036 ,  G06F2217/10

Abstract: A link simulation tool for simulating high-speed communications link systems is provided. Communications links may include link subsystems such as transmit (TX) circuitry, receive (TX) circuitry, oscillator circuits that provide reference clock signals to the TX and RX circuitry, and channels that link the TX and RX circuitry. The link simulation tool may model each of the subsystems using behavioral models. The behavioral models may include characteristic functions such as transfer functions, probability density functions, and eye characteristics. The link simulation tool may have a link analysis engine that is capable of performing two-dimensional (two-variable) convolution operations and in applying dual-domain (frequency-time) transformations on the characteristic functions provided by the behavioral models to simulate the performance of the link system. The link simulation tool may have an input screen that allows a user to specify desired link parameters and a data display screen that display simulated results.

Abstract translation: 提供了一种用于模拟高速通信链路系统的链路仿真工具。 通信链路可以包括链路子系统，例如发射（TX）电路，接收（TX）电路，向TX和RX电路提供参考时钟信号的振荡器电路，以及链接TX和RX电路的信道。 链接仿真工具可以使用行为模型对每个子系统进行建模。 行为模型可以包括特征功能，例如传递函数，概率密度函数和眼睛特征。 链路仿真工具可以具有能够执行二维（双变量）卷积运算并且对由行为模型提供的特征函数应用双域（频率 - 时间）变换以模拟性能的链路分析引擎 的链接系统。 链接仿真工具可以具有允许用户指定期望的链接参数的输入屏幕和显示模拟结果的数据显示屏幕。