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公开(公告)号：US06897712B2
公开(公告)日：2005-05-24
申请号：US10604799
申请日：2003-08-18
CPC分类号： H03K5/19 , H03K5/08 , H04L25/0272 , H04L25/085
摘要： An apparatus and method is provided for detecting loss of differential signal carried by a pair of differential signal lines. According to the method, a common mode level is detected from voltages on the pair of differential signal lines. A threshold level is generated, referenced to the detected common mode level. A signal level is generated from the voltages on the pair of differential signal lines, the signal level being averaged over a first period of time. From the threshold level and the detected common mode level a reference level is generated, the reference level being averaged over a second period of time longer than then the first period of time. The signal level is compared to the reference level to determine if a signal is present on the pair of differential signal lines.
摘要翻译： 提供一种用于检测由一对差分信号线携带的差分信号的损耗的装置和方法。 根据该方法，从该对差分信号线上的电压检测共模电平。 产生阈值电平，参考检测到的共模电平。 信号电平由一对差分信号线上的电压产生，信号电平在第一时间段内被平均化。 从阈值电平和检测到的共模电平产生参考电平，在比第一时间段长的第二时间段内平均参考电平。 将信号电平与参考电平进行比较，以确定信号对是否存在于该对差分信号线上。
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公开(公告)号：US08027416B2
公开(公告)日：2011-09-27
申请号：US12043166
申请日：2008-03-06
IPC分类号： H04L27/08
CPC分类号： H04L25/063 , H04L25/0292
摘要： A machine-readable medium thereupon stored a design structure; the design structure includes a receiver for a data communications system. The receiver includes a data path for receiving a data signal from a data channel, the data path comprising an automatic gain control (AGC) loop; and, a signal detector for generating a data valid signal indicative of the validity of the data signal in response to detection of the data signal on the channel exceeding a threshold and in dependence upon gain information from the AGC loop in the data path.
摘要翻译： 机器可读介质存储设计结构; 该设计结构包括用于数据通信系统的接收器。 接收机包括用于从数据信道接收数据信号的数据路径，数据路径包括自动增益控制（AGC）环路; 以及信号检测器，用于响应于在信道上的数据信号的检测超过阈值并且根据来自数据路径中的AGC循环的增益信息，产生指示数据信号的有效性的数据有效信号。
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公开(公告)号：US20080037690A1
公开(公告)日：2008-02-14
申请号：US11737319
申请日：2007-04-19
CPC分类号： H04L25/0292 , H04L25/063
摘要： A receiver for a data communications system comprises: a data path for receiving a data signal from a data channel, the data path comprising an automatic gain control (AGC) loop; and, a signal detector for generating a data valid signal indicative of the validity of the data signal in response to detection of the data signal on the channel exceeding a threshold and in dependence upon gain information from the AGC loop in the data path.
摘要翻译： 用于数据通信系统的接收机包括：用于从数据信道接收数据信号的数据路径，所述数据路径包括自动增益控制（AGC）环路; 以及信号检测器，用于响应于在信道上的数据信号的检测超过阈值并且根据来自数据路径中的AGC循环的增益信息，产生指示数据信号的有效性的数据有效信号。
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公开(公告)号：US08027415B2
公开(公告)日：2011-09-27
申请号：US11737319
申请日：2007-04-19
IPC分类号： H04L27/08
CPC分类号： H04L25/0292 , H04L25/063
摘要： A receiver for a data communications system comprises: a data path for receiving a data signal from a data channel, the data path comprising an automatic gain control (AGC) loop; and, a signal detector for generating a data valid signal indicative of the validity of the data signal in response to detection of the data signal on the channel exceeding a threshold and in dependence upon gain information from the AGC loop in the data path.
摘要翻译： 用于数据通信系统的接收机包括：用于从数据信道接收数据信号的数据路径，所述数据路径包括自动增益控制（AGC）环路; 以及信号检测器，用于响应于在信道上的数据信号的检测超过阈值并且根据来自数据路径中的AGC循环的增益信息，产生指示数据信号的有效性的数据有效信号。
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公开(公告)号：US20080146181A1
公开(公告)日：2008-06-19
申请号：US12043166
申请日：2008-03-06
申请人： James Mason , Louis Hsu , Phil J. Murfet , Gareth J. Nicholls
发明人： James Mason , Louis Hsu , Phil J. Murfet , Gareth J. Nicholls
IPC分类号： H04B1/06
CPC分类号： H04L25/063 , H04L25/0292
摘要： A machine-readable medium thereupon stored a design structure; the design structure includes a receiver for a data communications system. The receiver includes a data path for receiving a data signal from a data channel, the data path comprising an automatic gain control (AGC) loop; and, a signal detector for generating a data valid signal indicative of the validity of the data signal in response to detection of the data signal on the channel exceeding a threshold and in dependence upon gain information from the AGC loop in the data path.
摘要翻译： 机器可读介质存储设计结构; 该设计结构包括用于数据通信系统的接收器。 接收机包括用于从数据信道接收数据信号的数据路径，数据路径包括自动增益控制（AGC）环路; 以及信号检测器，用于响应于在信道上的数据信号的检测超过阈值并且根据来自数据路径中的AGC循环的增益信息，产生指示数据信号的有效性的数据有效信号。
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