公开(公告)号：US20090177457A1

公开(公告)日：2009-07-09

申请号：US11968942

申请日：2008-01-03

Applicant: Xingdong Dai ,  Weiwei Mao ,  Max J. Olsen ,  Geoffrey Zhang

Inventor： Xingdong Dai ,  Weiwei Mao ,  Max J. Olsen ,  Geoffrey Zhang

IPC: G06G7/62

CPC classification number: H04L1/241 ,  H03M9/00 ,  H04L1/205

Abstract: A method and system for modeling and calibrating duty cycle distortion (DCD) of a Serializer and Deserializer (SerDes) device, including first generating a clock DCD signal. Once the clock DCD signal is generated, it is calibrating based upon results obtained from a filtering process of the clock DCD signal. Once the clock DCD signal is calibrated, a data DCD signal is generated and calibrated based upon results obtained from a filtering process of the data DCD signal.

Abstract translation: 一种用于建模和校准串行器和解串器（SerDes）器件的占空比失真（DCD）的方法和系统，包括首先产生时钟DCD信号。 一旦产生时钟DCD信号，它就是根据从时钟DCD信号的滤波处理获得的结果进行校准。 一旦时钟DCD信号被校准，基于从数据DCD信号的滤波处理获得的结果来产生和校准数据DCD信号。

公开(公告)号：US07472318B2

公开(公告)日：2008-12-30

申请号：US11477038

申请日：2006-06-28

Applicant: Nong Fan ,  Tuan Hoang ,  Hongtao Jiang

Inventor： Nong Fan ,  Tuan Hoang ,  Hongtao Jiang

IPC: G06F11/00

CPC classification number: H04L1/243 ,  H04L1/203 ,  H04L1/241

Abstract: A method and system for evaluating performance of a device by on-chip determination of BER may include establishing and generating PRBS test packets in a closed communication path internally within a physical layer device (PLD) and a remote PLD. A BER for the PLD may be determined from within the PLD based on a comparison of at least a portion of the generated test packets with at least a portion of the generated test packets transmitted over the closed communication path received by the PLD via the closed communication path from the remote PLD. A transmit path of the PLD may be internally coupled to a receive path of the PLD, and a receive path of the PLD may be internally coupled to a transmit path of the PLD. The PLD may be internally configured to operate in an internal optical loopback mode or an internal electrical loopback mode.

Abstract translation: 用于通过片上确定BER来评估设备的性能的方法和系统可以包括在物理层设备（PLD）和远程PLD内部的闭合通信路径中建立和生成PRBS测试分组。 基于PLD中的BER，可以基于生成的测试分组的至少一部分与由PLD经由封闭通信接收的封闭通信路径发送的生成的测试分组的至少一部分进行比较来确定PLD的BER 从远程PLD的路径。 PLD的发送路径可以内部耦合到PLD的接收路径，并且PLD的接收路径可以内部耦合到PLD的发送路径。 PLD可以内部配置为在内部光环回模式或内部电气环回模式下工作。

公开(公告)号：US20080192640A1

公开(公告)日：2008-08-14

申请号：US12028479

申请日：2008-02-08

Applicant: Richard D. Simpson

Inventor： Richard D. Simpson

IPC: G01R31/08

CPC classification number: H04L1/241 ,  H04L2025/03477 ,  H04L2025/0349

Abstract: A loopback circuit connecting the output of a receiver section to a transmitter section of a transceiver circuit has two or more loopback channels. In this way, the data rate is reduced, reducing the signal loss that occurs even over such short distances at very high data rates.

Abstract translation: 将接收机部分的输出连接到收发器电路的发射机部分的环回电路具有两个或多个环回信道。 以这种方式，数据速率降低，即使在非常高的数据速率下在这么短的距离上也能减少信号损失。

公开(公告)号：US20070168770A1

公开(公告)日：2007-07-19

申请号：US11477038

申请日：2006-06-28

Applicant: Nong Fan ,  Tuan Hoang ,  Hongtao Jiang

Inventor： Nong Fan ,  Tuan Hoang ,  Hongtao Jiang

IPC: G06F11/00

CPC classification number: H04L1/243 ,  H04L1/203 ,  H04L1/241

Abstract: A method and system for evaluating performance of a device by on-chip determination of BER may include establishing a closed communication path internally within a physical layer device (PLD). A bit error rate for the PLD may be determined from within the PLD based on a ratio of a number of bits in test packets generated within the PLD that are transmitted over the closed communication path, and a number of transmitted bits in the test packets that are received by the PLD via the closed communication path. A transmit path of the PLD may be internally coupled to a receive path of the PLD, and a receive path of the PLD may be internally coupled to a transmit path of the PLD. The PLD may be internally configured to operate in an internal optical loopback mode or an internal electrical loopback mode.

Abstract translation: 通过片上确定BER来评估设备的性能的方法和系统可以包括在物理层设备（PLD）内部建立闭合通信路径。 基于PLD内生成的测试分组中通过封闭通信路径发送的测试分组中的比特数的比例以及测试分组中的发送比特数，可以从PLD内确定PLD的误码率， 由PLD通过封闭的通信路径接收。 PLD的发送路径可以内部耦合到PLD的接收路径，并且PLD的接收路径可以内部耦合到PLD的发送路径。 PLD可以内部配置为在内部光环回模式或内部电气环回模式下工作。

公开(公告)号：US20060107109A1

公开(公告)日：2006-05-18

申请号：US11262737

申请日：2005-11-01

Applicant: Osamu Ikabata

Inventor： Osamu Ikabata

IPC: G06F11/00

CPC classification number: H04L1/241 ,  H04L1/0061 ,  H04L1/243

Abstract: The present invention makes it possible to detect abnormality in an error detecting function early while minimizing adverse effects on transfer performance. The present invention provides a method for diagnosing a transfer data ensuring system in which a transmitting apparatus transmits transmission data provided with an error detection code and then receives a result of error detection (referred to as a transfer reply below) carried out by a receiving apparatus to verify the transferred data, the method comprising transmitting dedicated diagnosis data provided with an incorrect error detection code and diagnosis data provided with a correct error detection data and diagnosing the error verifying function on the basis of a transfer reply to the transmitted data.

Abstract translation: 本发明能够尽可能早地检测误差检测功能中的异常，同时最小化对传输性能的不利影响。 本发明提供了一种用于诊断传送数据确认系统的方法，其中发送装置发送提供有错误检测码的发送数据，然后接收由接收装置执行的错误检测结果（以下称为传送回复） 为了验证所传送的数据，该方法包括发送具有不正确的错误检测码的专用诊断数据和提供有正确的错误检测数据的诊断数据，并且基于对发送的数据的转移答复来诊断错误验证功能。

公开(公告)号：US20060072496A1

公开(公告)日：2006-04-06

申请号：US11002973

申请日：2004-12-03

Applicant: Masatoshi Nakamata ,  Benoist Sebire ,  Karri Ranta-Aho

Inventor： Masatoshi Nakamata ,  Benoist Sebire ,  Karri Ranta-Aho

IPC: H04Q7/00

CPC classification number: H04W36/02 ,  H04L1/1812 ,  H04L1/1838 ,  H04L1/1845 ,  H04L1/241

Abstract: A radio network element, including means for receiving data packets from a user equipment in a soft handover connection, means for determining whether the received data blocks have been received successfully or unsuccessfully, means for running a retransmission process for an un-successfully received data packet, and means for receiving control information instructing the size of memory to be reserved for retransmission processes of the connection.

Abstract translation: 一种无线网络元件，包括用于在软切换连接中从用户设备接收数据分组的装置，用于确定所接收的数据块是否已成功接收或未成功接收的装置，用于对未成功接收的数据分组进行重传过程的装置 以及用于接收控制信息的装置，该控制信息指示要为该连接的重传过程保留的存储器的大小。

公开(公告)号：US06618696B1

公开(公告)日：2003-09-09

申请号：US09332129

申请日：1999-06-14

Applicant: Richard A. Dean ,  Steven William Roberts ,  Mark George Jacobs ,  Ronald E. Krebs

Inventor： Richard A. Dean ,  Steven William Roberts ,  Mark George Jacobs ,  Ronald E. Krebs

IPC: G06G748

CPC classification number: H04W16/22 ,  H04B17/391 ,  H04L1/241

Abstract: The present invention is a method of simulating the effects of a plurality of channels on a signal that includes the steps of acquiring a state transition matrix for each of said plurality of channels; acquiring an error matrix for each of said plurality of channels; selecting the first channel to be simulated; assuming that the signal is in a particular state; receiving the signal; generating a first number; determining the state to which the signal transitions; transitioning the signal to the state determined in the last step; generating a second number; determining what errors, if any, to inject into the signal by comparing the second number to entries in the column of the error matrix of the corresponding channel that matches the state of the signal; if one of the errors determined in the last step is lost signal then discarding the signal, not injecting any other error into the signal, selecting another channel if the user desires, assuming that the next signal selected is in the same state to which the previous signal transitioned, returning to the fifth step if another channel is selected, and transmitting the signal if another channel is not selected; and injecting the errors determined in the tenth step into the signal, selecting another channel if the user desires, returning to the fifth step if another channel is selected, assuming that the next signal selected is in the same state to which the previous signal transitioned, and transmitting the signal if another channel is not selected.

Abstract translation: 本发明是一种模拟多个信道对信号的影响的方法，包括以下步骤：获取所述多个信道中的每个信道的状态转移矩阵; 获取所述多个通道中的每一个的误差矩阵; 选择要模拟的第一个通道; 假设信号处于特定状态; 接收信号; 产生第一个数字; 确定信号转换到的状态; 将信号转换到在最后一步确定的状态; 产生第二个数字; 通过将第二数量与符合信号状态的相应通道的误差矩阵的列中的条目进行比较来确定将什么错误（如果有的话）注入到信号中; 如果在最后一步确定的错误之一丢失信号，则丢弃该信号，而不向该信号中注入任何其他错误，如果用户期望，则选择另一个信道，假设所选择的下一个信号处于与之前相同的状态 信号转换，如果选择另一个信道，返回到第五步，如果没有选择另一个信道，则发送信号; 并且将在第十步骤中确定的错误注入到信号中，如果用户期望，则选择另一个信道，假设所选择的下一个信号处于与先前信号转换到的相同状态，则返回到第五步骤，如果选择另一个信道， 如果没有选择另一个信道，则发送信号。

公开(公告)号：US06501804B1

公开(公告)日：2002-12-31

申请号：US09297859

申请日：1999-05-07

Applicant: Dietmar Rudolph ,  Christian Hoerlle ,  Andreas Schaefer

Inventor： Dietmar Rudolph ,  Christian Hoerlle ,  Andreas Schaefer

IPC: H04B1500

CPC classification number: H04B1/123 ,  H04L1/241 ,  H04L1/242

Abstract: A method for the transmission of digital signals, particularly in the AM bands (broadcasting bands), with high-level modulation, preferably 32 APSK or 64 ASPK, being used for data blocks to be transmitted. At the receiving end, time-periodic measurements of a noise are carried out and noise signals determined therefrom are subtracted from received signals.

Abstract translation: 用于传输数字信号的方法，特别是在具有高级调制（优选32APSK或64ADKK）的AM频带（广播频带）中，用于要发送的数据块。 在接收端，执行噪声的时间周期测量，并从接收到的信号中减去从其确定的噪声信号。

公开(公告)号：US06374375B1

公开(公告)日：2002-04-16

申请号：US08853300

申请日：1997-05-09

Applicant: Philip C. Yip ,  Muhammad M. Rahmatullah ,  Terry L. Cole

Inventor： Philip C. Yip ,  Muhammad M. Rahmatullah ,  Terry L. Cole

IPC: G01R3128

CPC classification number: H04L1/242 ,  H04L1/241

Abstract: A method and apparatus for allowing a modem transmitting data in the data mode to initiate retraining mode due to changing line conditions. The modem inserts a test signal within the data received from a computer system. The data and test signal are encoded and sent over a network to a second modem. The second modem compares the test signal with a standard test signal, and if the test signal received is different from the standard test signal, the second modem initiates retraining of the modems to adjust for the varying line conditions.

Abstract translation: 一种用于允许调制解调器在数据模式中发送数据以由于改变线路条件而发起再训练模式的方法和装置。 调制解调器将测试信号插入到从计算机系统接收的数据中。 数据和测试信号被编码并通过网络发送到第二调制解调器。 第二调制解调器将测试信号与标准测试信号进行比较，并且如果接收的测试信号与标准测试信号不同，则第二调制解调器启动调制解调器的再训练以针对变化的线路条件进行调整。

公开(公告)号：US6069876A

公开(公告)日：2000-05-30

申请号：US798752

申请日：1997-02-13

Applicant: Emil Lander ,  Stephen D. Cadieux

Inventor： Emil Lander ,  Stephen D. Cadieux

IPC: H04L1/24 ,  H04L12/56 ,  H04Q11/04 ,  G01R31/08

CPC classification number: H04Q11/0478 ,  H04L1/241 ,  H04L1/243 ,  H04L2012/5628

Abstract: Telecommunications networks require a variety of tests to monitor their proper operations. Performance monitoring (and fault detection) of the physical layer of a transmission system is one of them and is usually accomplished by using a bit error rate test (BERT). The BERT of the invention uses modified ATM idle cells to conduct one-way, bidirectional and loopback BERT. ATM idle cells are loaded with BERT data at the transmit end and recovered at the receive end. The BERT data are processed according to the different data rates of the ATM transmission system. Performance parameters are derived from the received BERT data. The disclosure describes a method as well as a system for performing such a test.

Abstract translation: 电信网络需要进行各种测试来监控其正常运行。 传输系统的物理层的性能监视（和故障检测）是其中之一，通常通过使用误码率测试（BERT）来完成。 本发明的BERT使用修改的ATM空闲小区来进行单向，双向和环回BERT。 ATM空闲单元在发送端装入BERT数据，并在接收端恢复。 根据ATM传输系统的不同数据速率处理BERT数据。 性能参数是从接收到的BERT数据导出的。 本公开描述了一种方法以及用于执行这种测试的系统。