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1.发明申请Automatic adaptive equalization method for high-speed serial transmission link 失效自动自适应均衡方法用于高速串行传输链路公开(公告)号：US20080137721A1
公开(公告)日：2008-06-12
申请号：US11974967
申请日：2007-10-17
IPC分类号： H04L27/01
CPC分类号： H04L25/03057 , H04L25/03343
摘要： In a method for performing equalization of a communication system, a predetermined signal can be transmitted from a transmitter unit to a receiver unit in a downchannel direction on a transmission line, for example as a pair of differential signals which simultaneously transition in opposite directions on respective signal conductors of the transmission line. At the receiver unit, an eye opening of the signal received from the transmission line can be analyzed to determine equalization information. Equalization information can be transmitted from the receiver unit to the transmitter unit in an upchannel direction on the transmission line and be received at the transmitter unit. Using received equalization information, a transmission characteristic of the transmitter unit can be adjusted.
摘要翻译： 在用于执行通信系统的均衡的方法中，可以将预定信号从发射机单元发送到传输线上的下行信道方向上的接收机单元，例如作为在相应方向上同时沿相反方向转变的一对差分信号 传输线的信号导体。 在接收机单元，可以分析从传输线接收的信号的眼图，以确定均衡信息。 均衡信息可以在传输线上的上行方向上从接收机单元发送到发射机单元，并在发射机单元处接收。 使用接收到的均衡信息，可以调整发送单元的发送特性。
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2.发明授权Automatic adaptive equalization method for high-speed serial transmission link 失效自动自适应均衡方法用于高速串行传输链路公开(公告)号：US07733964B2
公开(公告)日：2010-06-08
申请号：US11974967
申请日：2007-10-17
CPC分类号： H04L25/03057 , H04L25/03343
摘要： In a method for performing equalization of a communication system, a predetermined signal can be transmitted from a transmitter unit to a receiver unit in a downchannel direction on a transmission line, for example as a pair of differential signals which simultaneously transition in opposite directions on respective signal conductors of the transmission line. At the receiver unit, an eye opening of the signal received from the transmission line can be analyzed to determine equalization information. Equalization information can be transmitted from the receiver unit to the transmitter unit in an upchannel direction on the transmission line and be received at the transmitter unit. Using received equalization information, a transmission characteristic of the transmitter unit can be adjusted.
摘要翻译： 在用于执行通信系统的均衡的方法中，可以将预定信号从发射机单元发送到传输线上的下行信道方向上的接收机单元，例如作为在相应方向上同时沿相反方向转变的一对差分信号 传输线的信号导体。 在接收机单元，可以分析从传输线接收的信号的眼图，以确定均衡信息。 均衡信息可以在传输线上的上行方向上从接收机单元发送到发射机单元，并在发射机单元处接收。 使用接收到的均衡信息，可以调整发送单元的发送特性。
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3.发明授权Automatic adaptive equalization method and system for high-speed serial transmission link 失效自动自适应均衡方法和系统，用于高速串行传输链路公开(公告)号：US07295618B2
公开(公告)日：2007-11-13
申请号：US10710064
申请日：2004-06-16
CPC分类号： H04L25/03057 , H04L25/03343
摘要： A data communication system includes a transmitter unit and a receiver unit. The transmission unit has a transmission characteristic that is adjustable in accordance with equalization information. The transmission unit is operable to transmit a predetermined signal and the receiver unit is operable to receive the predetermined signal. The receiver unit is further operable to generate the equalization information by examining the eye opening of the received signal, and to transmit the equalization information to the transmitter unit.
摘要翻译： 数据通信系统包括发射机单元和接收机单元。 发送单元具有根据均衡信息可调的传输特性。 发送单元可操作以发送预定信号，并且接收器单元可操作以接收预定信号。 接收机单元进一步可操作以通过检查接收到的信号的眼图来产生均衡信息，并将均衡信息发送到发射机单元。
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公开(公告)号：US07519130B2
公开(公告)日：2009-04-14
申请号：US10905705
申请日：2005-01-18
申请人： Louis L. Hsu , Matt R. Cordrey-Gale , James S. Mason , Philip J. Murfet , Karl D. Selander , Michael A. Sorna , Huihao Xu
发明人： Louis L. Hsu , Matt R. Cordrey-Gale , James S. Mason , Philip J. Murfet , Karl D. Selander , Michael A. Sorna , Huihao Xu
IPC分类号： H04L25/34
CPC分类号： H04L25/0274 , H04L25/0296
摘要： A data receiver is provided which includes a front end interface circuit having an alternating current (AC) transmission receiving mode and a direct current (DC) transmission receiving mode. The front end interface circuit includes an offset compensation circuit operable to compensate a DC voltage offset between a pair of differential signals input to the data receiver. The front end interface circuit further includes an AC/DC selection unit operable to switch between (a) the DC transmission receiving mode, and (b) the AC transmission receiving mode, such that the data receiver is operable in (i) the DC transmission mode in which the offset compensation circuit is disabled, (ii) the DC transmission mode in which the offset compensation circuit is enabled, (iii) the AC transmission mode in which the offset compensation circuit is disabled, and (iv) the AC transmission receiving mode in which the offset compensation circuit is enabled.
摘要翻译： 提供一种数据接收器，其包括具有交流（AC）发送接收模式和直流（DC）发送接收模式的前端接口电路。 前端接口电路包括偏移补偿电路，其可操作以补偿输入到数据接收器的一对差分信号之间的直流电压偏移。 前端接口电路还包括可操作以在（a）直流发送接收模式和（b）交流发送接收模式之间切换的AC / DC选择单元，使得数据接收器可操作于（i）直流传输 偏移补偿电路被禁用的模式，（ii）使能偏移补偿电路的直流传输模式，（iii）偏移补偿电路被禁用的AC传输模式，以及（iv）AC传输接收 偏移补偿电路使能的模式。
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5.发明授权Structure for robust cable connectivity test receiver for high-speed data receiver 有权用于高速数据接收机的坚固电缆连接测试接收机的结构公开(公告)号：US07873922B2
公开(公告)日：2011-01-18
申请号：US11985956
申请日：2007-11-19
IPC分类号： G06F17/50
CPC分类号： G06F11/24
摘要： A design structure embodied in a machine-readable medium used in a design process may include a system for detecting a fault in a signal transmission path. Such system may include, for example, a hysteresis comparator including a latch having n-type field effect transistor (“NFET”) storage elements. The hysteresis comparator may be operable to detect a crossing of a reference voltage level by an input signal arriving from the signal transmission path such that when the comparator does not detect an expected crossing of the reference voltage level by the input signal, the fault is determined to be detected in the signal transmission path.
摘要翻译： 在设计过程中使用的机器可读介质中体现的设计结构可以包括用于检测信号传输路径中的故障的系统。 这种系统可以包括例如包括具有n型场效应晶体管（“NFET”）存储元件的锁存器的滞后比较器。 滞后比较器可以用于检测参考电压电平与从信号传输路径到达的输入信号的交叉，使得当比较器没有检测到参考电压电平与输入信号的预期交叉时，确定故障 以在信号传输路径中被检测。
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6.发明申请Structure for robust cable connectivity test receiver for high-speed data receiver 有权用于高速数据接收机的坚固电缆连接测试接收机的结构公开(公告)号：US20090128161A1
公开(公告)日：2009-05-21
申请号：US11985956
申请日：2007-11-19
IPC分类号： H04B3/46
CPC分类号： G06F11/24
摘要： A design structure embodied in a machine-readable medium used in a design process may include a system for detecting a fault in a signal transmission path. Such system may include, for example, a hysteresis comparator including a latch having n-type field effect transistor (“NFET”) storage elements. The hysteresis comparator may be operable to detect a crossing of a reference voltage level by an input signal arriving from the signal transmission path such that when the comparator does not detect an expected crossing of the reference voltage level by the input signal, the fault is determined to be detected in the signal transmission path.
摘要翻译： 在设计过程中使用的机器可读介质中体现的设计结构可以包括用于检测信号传输路径中的故障的系统。 这种系统可以包括例如包括具有n型场效应晶体管（“NFET”）存储元件的锁存器的滞后比较器。 滞后比较器可以用于检测参考电压电平与从信号传输路径到达的输入信号的交叉，使得当比较器没有检测到参考电压电平与输入信号的预期交叉时，确定故障 以在信号传输路径中被检测。
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7.发明授权公开(公告)号：US07855563B2
公开(公告)日：2010-12-21
申请号：US11766268
申请日：2007-06-21
CPC分类号： G01R31/041 , G01R31/026
摘要： A system is provided for detecting a fault in a signal transmission path. In one embodiment, the system can include a variable amplitude signal attenuator which is operable to modify an input signal by variably attenuating a signal voltage swing of the input signal. Desirably, the input signal is attenuated only when transitioning from a high signal voltage level towards a low signal voltage level d variably, such that a larger high-to-low signal voltage swing is attenuated more than a smaller high-to-low signal voltage swing. Desirably, a comparator, which may apply hysteresis to the output signals, may detect a crossing of a reference voltage level by the modified input signal. In this way, when the comparator does not detect an expected crossing of the reference voltage level by the modified input signal, a determination can be made that a fault exists in the signal transmission path.
摘要翻译： 提供了一种用于检测信号传输路径中的故障的系统。 在一个实施例中，系统可以包括可变幅度信号衰减器，其可操作以通过可变地衰减输入信号的信号电压摆幅来修改输入信号。 期望地，只有当从高信号电压电平转换到低信号电压电平d时，输入信号才被衰减，使得较高的高电平到低的信号电压摆幅比较小的高到低信号电压衰减 摇摆。 期望地，可能对输出信号施加迟滞的比较器可以检测参考电压电平与修改的输入信号的交叉。 以这种方式，当比较器没有检测到通过修改的输入信号的参考电压电平的预期交叉时，可以确定在信号传输路径中存在故障。
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8.发明申请公开(公告)号：US20080316930A1
公开(公告)日：2008-12-25
申请号：US11766268
申请日：2007-06-21
IPC分类号： G01R31/08
CPC分类号： G01R31/041 , G01R31/026
摘要： A system is provided for detecting a fault in a signal transmission path. In one embodiment, the system can include a variable amplitude signal attenuator which is operable to modify an input signal by variably attenuating a signal voltage swing of the input signal. Desirably, the input signal is attenuated only when transitioning from a high signal voltage level towards a low signal voltage level d variably, such that a larger high-to-low signal voltage swing is attenuated more than a smaller high-to-low signal voltage swing. Desirably, a comparator, which may apply hysteresis to the output signals, may detect a crossing of a reference voltage level by the modified input signal. In this way, when the comparator does not detect an expected crossing of the reference voltage level by the modified input signal, a determination can be made that a fault exists in the signal transmission path.
摘要翻译： 提供了一种用于检测信号传输路径中的故障的系统。 在一个实施例中，系统可以包括可变幅度信号衰减器，其可操作以通过可变地衰减输入信号的信号电压摆幅来修改输入信号。 期望地，只有当从高信号电压电平转换到低信号电压电平d时，输入信号才被衰减，使得较高的高电平到低的信号电压摆幅比较小的高到低的信号电压衰减 摇摆。 期望地，可能对输出信号施加迟滞的比较器可以检测参考电压电平与修改的输入信号的交叉。 以这种方式，当比较器没有检测到通过修改的输入信号的参考电压电平的预期交叉时，可以确定在信号传输路径中存在故障。
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公开(公告)号：US07694243B2
公开(公告)日：2010-04-06
申请号：US11964894
申请日：2007-12-27
申请人： Hibourahima Camara , Louis C. Hsu , James D. Rockrohr , Karl D. Selander , Huihao Xu , Steven J. Zier
发明人： Hibourahima Camara , Louis C. Hsu , James D. Rockrohr , Karl D. Selander , Huihao Xu , Steven J. Zier
IPC分类号： G06F17/50
CPC分类号： H03K19/00315
摘要： A system for protecting a weak device operating in micro-electronic circuit and a design structure including the system embodied in a machine readable medium are disclosed. The system includes a high voltage power supply from high voltage overstressing prevents the weak device from failing during power-up, power-down, and when a low voltage power supply in a multiple power supply system is absent. The system further includes a low voltage power supply detection circuit configured to detect circuit power-up, circuit power-down, and when the low voltage power supply is absent, and generate a control signal upon detection. The system further includes a controlled current mirror device configured to provide a trickle current to maintain a conduction channel in the weak device in response to the control signal received from the low voltage power supply detection circuit during circuit power-up, circuit power-down, and when the low voltage power supply is absent.
摘要翻译： 公开了一种用于保护在微电子电路中操作的弱设备的系统和包括体现在机器可读介质中的系统的设计结构。 该系统包括来自高压过应力的高压电源，防止弱电装置在上电，掉电期间以及当多电源系统中的低电压电源不存在时发生故障。 该系统还包括：低电压电源检测电路，被配置为检测电路上电，电路断电以及当低电压电源不存在时，并在检测时产生控制信号。 该系统还包括被配置为提供涓流电流的受控电流镜装置，以响应于在电路加电，电路断电期间从低电压电源检测电路接收的控制信号来保持弱装置中的导通通道， 并且当低电压电源不存在时。
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公开(公告)号：US20090172614A1
公开(公告)日：2009-07-02
申请号：US11964894
申请日：2007-12-27
申请人： Hibourahima Camara , Louis C. Hsu , James D. Rockrohr , Karl D. Selander , Huihao Xu , Steven J. Zier
发明人： Hibourahima Camara , Louis C. Hsu , James D. Rockrohr , Karl D. Selander , Huihao Xu , Steven J. Zier
IPC分类号： G06F17/50
CPC分类号： H03K19/00315
摘要： A system for protecting a weak device operating in micro-electronic circuit and a design structure including the system embodied in a machine readable medium are disclosed. The system includes a high voltage power supply from high voltage overstressing prevents the weak device from failing during power-up, power-down, and when a low voltage power supply in a multiple power supply system is absent. The system further includes a low voltage power supply detection circuit configured to detect circuit power-up, circuit power-down, and when the low voltage power supply is absent, and generate a control signal upon detection. The system further includes a controlled current mirror device configured to provide a trickle current to maintain a conduction channel in the weak device in response to the control signal received from the low voltage power supply detection circuit during circuit power-up, circuit power-down, and when the low voltage power supply is absent.
摘要翻译： 公开了一种用于保护在微电子电路中操作的弱设备的系统和包括体现在机器可读介质中的系统的设计结构。 该系统包括来自高压过应力的高压电源，防止弱电装置在上电，掉电期间以及当多电源系统中的低电压电源不存在时发生故障。 该系统还包括：低电压电源检测电路，被配置为检测电路上电，电路断电以及当低电压电源不存在时，并在检测时产生控制信号。 该系统还包括被配置为提供涓流电流的受控电流镜装置，以响应于在电路加电，电路断电期间从低电压电源检测电路接收的控制信号来保持弱装置中的导通通道， 并且当低电压电源不存在时。
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