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11. 发明授权

US06980824B2 Method and system for optimizing transmission and reception power levels in a communication system 有权
标题翻译：用于优化通信系统中的发射和接收功率电平的方法和系统
公开(公告)号：US06980824B2
公开(公告)日：2005-12-27
申请号：US10249546
申请日：2003-04-17
申请人： Louis L. Hsu , Brian L. Ji , Karl D. Selander , Michael A. Sorna
发明人： Louis L. Hsu , Brian L. Ji , Karl D. Selander , Michael A. Sorna
IPC分类号： H04B7/005 , H04B7/00
CPC分类号： H04W52/20
摘要： A method and system are disclosed herein for determining optimum power level settings for a transmitter and receiver pair of a communication system having a plurality of transmitter and receiver pairs, as determined with respect to bit error rate. In the method disclosed herein, the power levels of a transmitter and a receiver pair coupled to communicate over a duplex communication link are set to initial values. The bit error rate is then determined over the link. Then, the power level of the transmitter, the receiver, or both, is altered, incrementally, and the effect upon the bit error rate is determined. When an improvement appears in the bit error rate at an altered power level, the power level of the transmitter, the receiver or both, are set to the altered power level at which the improvement is found. The steps of incrementally altering power levels, determining the bit error rate, and establishing new power level settings when there is an improvement are repeated until power levels are determined at which the bit error rate is optimized.
摘要翻译：本文公开了一种用于确定具有多个发射机和接收机对的通信系统的发射机和接收机对的最佳功率电平设置的方法和系统，如针对误码率确定的。在本文公开的方法中，耦合到通过双工通信链路进行通信的发射机和接收机对的功率电平被设置为初始值。然后通过链路确定误码率。然后，发送器，接收器或两者的功率电平被改变，递增地，并且确定对误码率的影响。当在改变的功率电平上出现比特错误率的改进时，发射机，接收机或两者的功率电平被设置为发现改进的改变的功率电平。重复改变功率级别，确定误码率和建立新的功率电平设置的步骤，直到确定位误码率被优化的功率电平为止。

12. 发明授权

US06680681B1 High speed FIR transmitter 有权
标题翻译：高速FIR发射机
公开(公告)号：US06680681B1
公开(公告)日：2004-01-20
申请号：US10249795
申请日：2003-05-08
申请人： Louis L. Hsu , William R. Kelly , Joseph Natonio , Karl D. Selander , Michael A. Sorna
发明人： Louis L. Hsu , William R. Kelly , Joseph Natonio , Karl D. Selander , Michael A. Sorna
IPC分类号： H03M110
CPC分类号： H04L25/0288 , H03M1/661 , H03M1/742
摘要： A transmitter for driving a transmission medium employs pre-distortion to predistort the signals leaving the driver so that they will have an acceptable shape when they reach their destination and have been distorted by imperfections in the transmission medium. The change to pulse height is accomplished by means of a current steering unit that directs a controllable amount of current into the line for each pulse while maintaining the total sum of current that is generated constant in order to reduce noise. Control coefficients for the current steering unit are manipulated in an nxm register that automatically maintains the total number of bits constant while bits are moved from a location that controls a first current driver to a location that controls a second current driver with different properties.
摘要翻译：用于驱动传输介质的发射机使用预失真来预先离开驾驶员的信号，使得当它们到达其目的地并且由于传输介质中的缺陷而变形时，它们将具有可接受的形状。脉冲高度的改变是通过一个电流转向单元实现的，该电流转向单元将可控量的电流引导到每个脉冲的线中，同时保持恒定的电流的总和以减少噪声。用于当前转向单元的控制系数在nxm寄存器中进行操作，该nxm寄存器自动维持总位数恒定，而位从控制第一当前驱动器的位置移动到控制具有不同属性的第二当前驱动器的位置。

13. 发明申请

US20080061825A1 CML TO CMOS SIGNAL CONVERTER 失效
标题翻译： CML TO CMOS信号转换器
公开(公告)号：US20080061825A1
公开(公告)日：2008-03-13
申请号：US11467349
申请日：2006-08-25
申请人： Louis L. Hsu , Gautam Gangasani , Michael A. Sorna , Steven J. Zier
发明人： Louis L. Hsu , Gautam Gangasani , Michael A. Sorna , Steven J. Zier
IPC分类号： H03K19/094
CPC分类号： H03K19/018528
摘要： A signal regenerator is provided which includes a common mode reference generator and a signal converter circuit. A common mode reference voltage level is generated which is variable in relation to at least one of a process used to fabricate the common mode reference generator, a level of a power supply voltage provided to the common mode reference generator or a temperature at which the common mode reference generator is operated. A signal converter circuit receives a differentially transmitted signal pair including a first input signal and a second input signal and outputs a single-ended output signal representing information carried by the differentially transmitted signal pair. Using a feedback signal from the common mode reference generator, a feedback control block controls a common mode level of the single-ended output signal in accordance with the common mode reference voltage level.
摘要翻译：提供信号再生器，其包括共模参考发生器和信号转换器电路。产生共模参考电压电平，其相对于用于制造共模参考发生器的工艺中的至少一个，提供给共模参考发生器的电源电压的电平或共模参考电压的温度可变模式参考发生器运行。信号转换器电路接收包括第一输入信号和第二输入信号的差分发送信号对，并输出表示由差分发送信号对承载的信息的单端输出信号。使用来自共模参考发生器的反馈信号，反馈控制块根据共模参考电压电平控制单端输出信号的共模电平。

14. 发明授权

US07394283B2 CML to CMOS signal converter 失效
标题翻译： CML到CMOS信号转换器
公开(公告)号：US07394283B2
公开(公告)日：2008-07-01
申请号：US11467349
申请日：2006-08-25
申请人： Louis L. Hsu , Gautam Gangasani , Michael A. Sorna , Steven J. Zier
发明人： Louis L. Hsu , Gautam Gangasani , Michael A. Sorna , Steven J. Zier
IPC分类号： H03K17/16
CPC分类号： H03K19/018528
摘要： A signal regenerator is provided which includes a common mode reference generator and a signal converter circuit. A common mode reference voltage level is generated which is variable in relation to at least one of a process used to fabricate the common mode reference generator, a level of a power supply voltage provided to the common mode reference generator or a temperature at which the common mode reference generator is operated. A signal converter circuit receives a differentially transmitted signal pair including a first input signal and a second input signal and outputs a single-ended output signal representing information carried by the differentially transmitted signal pair. Using a feedback signal from the common mode reference generator, a feedback control block controls a common mode level of the single-ended output signal in accordance with the common mode reference voltage level.
摘要翻译：提供信号再生器，其包括共模参考发生器和信号转换器电路。产生共模参考电压电平，其相对于用于制造共模参考发生器的工艺中的至少一个，提供给共模参考发生器的电源电压的电平或共模参考电压的温度可变模式参考发生器运行。信号转换器电路接收包括第一输入信号和第二输入信号的差分发送信号对，并输出表示由差分发送信号对承载的信息的单端输出信号。使用来自共模参考发生器的反馈信号，反馈控制块根据共模参考电压电平控制单端输出信号的共模电平。

15. 发明授权

US07378853B2 System and method for detecting cable faults for high-speed transmission link 失效
标题翻译：高速传输链路电缆故障检测系统及方法
公开(公告)号：US07378853B2
公开(公告)日：2008-05-27
申请号：US10708384
申请日：2004-02-27
申请人： Louis L. Hsu , Harry I. Linzer , James Rockrohr , Huihao H. Xu
发明人： Louis L. Hsu , Harry I. Linzer , James Rockrohr , Huihao H. Xu
IPC分类号： G01R31/02
CPC分类号： H04B3/46 , G01R31/021
摘要： A system and method of detecting a fault in a transmission link are provided which includes providing a selectable reference level according to one of a direct current (DC) mode threshold and an alternating current (AC) mode threshold, wherein the DC mode threshold is a fixed potential and the AC mode threshold varies with time. An input signal arriving from the transmission link is compared to one of the DC mode threshold and the AC mode threshold to determine whether a fault is present in the transmission link.
摘要翻译：提供一种检测传输链路故障的系统和方法，其包括根据直流（DC）模式阈值和交流（AC）模式阈值之一提供可选参考电平，其中DC模式阈值为固定电位和AC模式阈值随时间变化。将从传输链路到达的输入信号与DC模式阈值和AC模式阈值之一进行比较，以确定传输链路中是否存在故障。

16. 发明申请

US20090129485A1 Structure for transmitter bandwidth optimization circuit 有权
标题翻译：发射机带宽优化电路的结构
公开(公告)号：US20090129485A1
公开(公告)日：2009-05-21
申请号：US11985963
申请日：2007-11-19
申请人： Louis L. Hsu , Hayden C. Cranford, JR. , Joseph Natonio , James D. Rockrohr , Huihao Xu , Steven J. Zier
发明人： Louis L. Hsu , Hayden C. Cranford, JR. , Joseph Natonio , James D. Rockrohr , Huihao Xu , Steven J. Zier
IPC分类号： H04B3/00 , H04L27/00
CPC分类号： H04L25/0286 , H04L25/03343
摘要： A design structure embodied in a machine-readable medium used in a design process provides a transmitter having a frequency response controllable in accordance with an operational parameter, and may include a storage operable to store operational parameters for controlling a frequency response of the transmitter under each of a plurality of corresponding operating conditions. A sensor can be used to detect an operating condition. In response to a change in the detected operating condition, a stored operational parameter corresponding to the detected operating condition can be used to control the frequency response of the transmitter.
摘要翻译：体现在设计过程中使用的机器可读介质中的设计结构提供具有根据操作参数可控的频率响应的发射机，并且可以包括可操作地存储用于控制每个发射机的频率响应的操作参数的存储器的多个相应的操作条件。可以使用传感器来检测操作状态。响应于检测到的操作条件的变化，可以使用与检测到的操作条件对应的存储的操作参数来控制发送器的频率响应。

17. 发明授权

US08219040B2 Transmitter bandwidth optimization circuit 有权
标题翻译：发射机带宽优化电路
公开(公告)号：US08219040B2
公开(公告)日：2012-07-10
申请号：US11769128
申请日：2007-06-27
申请人： Louis L. Hsu , Hayden C. Cranford, Jr. , Joseph Natonio , James D. Rockrohr , Huihao Xu , Steven J. Zier
发明人： Louis L. Hsu , Hayden C. Cranford, Jr. , Joseph Natonio , James D. Rockrohr , Huihao Xu , Steven J. Zier
IPC分类号： H04B1/02
CPC分类号： H04L25/0286 , H04L25/0272
摘要： A method is provided for operating a transmitter integrated in a microelectronic element. In a calibration phase, a plurality of operational parameters are stored for controlling a frequency response of the transmitter under each of a plurality of corresponding operating conditions. Upon detecting an operating condition such as a temperature or power supply voltage level, the corresponding stored operational parameter is applied to the transmitter to control the frequency response.
摘要翻译：提供了一种用于操作集成在微电子元件中的发射器的方法。在校准阶段中，存储多个操作参数，用于在多个对应的操作条件中的每一个下控制发射机的频率响应。在检测到诸如温度或电源电压电平的操作条件时，将相应的存储的操作参数应用于发射机以控制频率响应。

18. 发明申请

US20090004978A1 TRANSMITTER BANDWIDTH OPTIMIZATION CIRCUIT 有权
标题翻译：发射机带宽优化电路
公开(公告)号：US20090004978A1
公开(公告)日：2009-01-01
申请号：US11769128
申请日：2007-06-27
申请人： Louis L. Hsu , Hayden C. Cranford, Jr. , Joseph Natonio , James D. Rockrohr , Huihao Xu , Steven J. Zier
发明人： Louis L. Hsu , Hayden C. Cranford, Jr. , Joseph Natonio , James D. Rockrohr , Huihao Xu , Steven J. Zier
IPC分类号： H04B1/04 , G08B21/00 , H04L27/00 , H04B1/02
CPC分类号： H04L25/0286 , H04L25/0272
摘要： A method is provided for operating a transmitter integrated in a microelectronic element. In a calibration phase, a plurality of operational parameters are stored for controlling a frequency response of the transmitter under each of a plurality of corresponding operating conditions. Upon detecting an operating condition such as a temperature or power supply voltage level, the corresponding stored operational parameter is applied to the transmitter to control the frequency response.
摘要翻译：提供了一种用于操作集成在微电子元件中的发射器的方法。在校准阶段中，存储多个操作参数，用于在多个对应的操作条件中的每一个下控制发射机的频率响应。在检测到诸如温度或电源电压电平的操作条件时，将相应的存储的操作参数应用于发射机以控制频率响应。

19. 发明授权

US08219041B2 Design structure for transmitter bandwidth optimization circuit 有权
标题翻译：发射机带宽优化电路的设计结构
公开(公告)号：US08219041B2
公开(公告)日：2012-07-10
申请号：US11985963
申请日：2007-11-19
申请人： Louis L. Hsu , Hayden C. Cranford, Jr. , Joseph Natonio , James D. Rockrohr , Huihao Xu , Steven J. Zier
发明人： Louis L. Hsu , Hayden C. Cranford, Jr. , Joseph Natonio , James D. Rockrohr , Huihao Xu , Steven J. Zier
IPC分类号： H04B1/02
CPC分类号： H04L25/0286 , H04L25/03343
摘要： A design structure embodied in a machine-readable medium used in a design process provides a transmitter having a frequency response controllable in accordance with an operational parameter, and may include a storage operable to store operational parameters for controlling a frequency response of the transmitter under each of a plurality of corresponding operating conditions. A sensor can be used to detect an operating condition. In response to a change in the detected operating condition, a stored operational parameter corresponding to the detected operating condition can be used to control the frequency response of the transmitter.
摘要翻译：体现在设计过程中使用的机器可读介质中的设计结构提供具有根据操作参数可控的频率响应的发射机，并且可以包括可操作地存储用于控制每个发射机的频率响应的操作参数的存储器的多个相应的操作条件。可以使用传感器来检测操作状态。响应于检测到的操作条件的变化，可以使用与检测到的操作条件对应的存储的操作参数来控制发送器的频率响应。

20. 发明授权

US07855563B2 Robust cable connectivity test receiver for high-speed data receiver 有权
标题翻译：用于高速数据接收器的强大的电缆连接测试接收器
公开(公告)号：US07855563B2
公开(公告)日：2010-12-21
申请号：US11766268
申请日：2007-06-21
申请人： Huihao Xu , Louis L. Hsu , Kevin G. Kramer , James D. Rockrohr , Michael A. Sorna
发明人： Huihao Xu , Louis L. Hsu , Kevin G. Kramer , James D. Rockrohr , Michael A. Sorna
IPC分类号： G01R31/00 , H04B3/46
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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