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1. 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。

2. 发明授权

US07486114B2 Signal detector with calibration circuit arrangement 有权
标题翻译：具有校准电路布置的信号检测器
公开(公告)号：US07486114B2
公开(公告)日：2009-02-03
申请号：US11383821
申请日：2006-05-17
申请人： Minhan Chen , Louis Hsu , Joseph Natonio , Karl D. Selander , Michael A. Sorna , Steven J. Zier
发明人： Minhan Chen , Louis Hsu , Joseph Natonio , Karl D. Selander , Michael A. Sorna , Steven J. Zier
IPC分类号： H03K5/19
CPC分类号： H04L25/0274 , H04L25/0296
摘要： A signal detector and method to detect the presence or absence of an incoming differential signal. The method nullifies the DC off-set of the signal detector so that it can detect a signal within a very narrow window. The common mode levels of the signal and reference paths are used for calibration which is done automatically by use of an embedded algorithm residing in a digital block. The calibration range and resolution are predetermined to cope with the technology, modeling, design methodology and human error.
摘要翻译：一种用于检测输入差分信号的存在或不存在的信号检测器和方法。该方法使信号检测器的DC偏移无效，使得其可以在非常窄的窗口内检测信号。信号和参考路径的共模电平用于通过使用位于数字块中的嵌入式算法自动完成的校准。预定校准范围和分辨率，以应对技术，建模，设计方法和人为错误。

3. 发明申请

US20070271054A1 Signal Detector with Calibration Circuit Arrangement 有权
标题翻译：具有校准电路布置的信号检测器
公开(公告)号：US20070271054A1
公开(公告)日：2007-11-22
申请号：US11383821
申请日：2006-05-17
申请人： Minhan Chen , Louis Hsu , Joseph Natonio , Karl D. Selander , Michael A. Sorna , Steven J. Zier
发明人： Minhan Chen , Louis Hsu , Joseph Natonio , Karl D. Selander , Michael A. Sorna , Steven J. Zier
IPC分类号： G06F19/00
CPC分类号： H04L25/0274 , H04L25/0296
摘要： A signal detector and method detect the presence or absence of an incoming differential signal. The method nullifies the DC off-set of the signal detector so that it can detect a signal within a very narrow window. The common mode levels of the signal and reference paths are used for calibration which is done automatically by use of an embedded algorithm residing in a digital block. The calibration range and resolution are predetermined to cope with the technology, modeling, design methodology and human error.
摘要翻译：信号检测器和方法检测输入差分信号的存在或不存在。该方法使信号检测器的DC偏移无效，使得其可以在非常窄的窗口内检测信号。信号和参考路径的共模电平用于通过使用位于数字块中的嵌入式算法自动完成的校准。预定校准范围和分辨率，以应对技术，建模，设计方法和人为错误。

4. 发明授权

US07352815B2 Data transceiver and method for equalizing the data eye of a differential input data signal 有权
标题翻译：用于均衡差分输入数据信号的数据眼的数据收发器和方法
公开(公告)号：US07352815B2
公开(公告)日：2008-04-01
申请号：US10604025
申请日：2003-06-23
申请人： Hibourahima Camara , Joseph Natonio , Karl D. Selander , Michael A. Sorna , Jeremy K. Stephens , Daniel W. Storaska
发明人： Hibourahima Camara , Joseph Natonio , Karl D. Selander , Michael A. Sorna , Jeremy K. Stephens , Daniel W. Storaska
IPC分类号： H04B3/00
CPC分类号： H04L25/03885
摘要： Apparatus and method for counteracting high frequency attenuation of a differential input data signal as the signal is conducted through a data link. A differential input data signal is transmitted from a transmitter to a receiver through a data link. The data eye of the differential input data signal is modified at the transmitter in response to feedback from the receiver where the extent of the data eye of the differential input data signal, after being conducted through the data link, is determined. The feedback to the transmitter, dependent on the determination of the extent of the data eye, controls the data eye at the transmitter and the equalization of the differential input data signal by adapting the differential input data signal to anticipate high frequency attenuation of the differential input data signal in the data link.
摘要翻译：当通过数据链路传送信号时，抵消差分输入数据信号的高频衰减的装置和方法。差分输入数据信号通过数据链路从发送器发送到接收器。差分输入数据信号的数据眼睛响应于来自接收机的反馈在发射机处被修改，其中差分输入数据信号在通过数据链路传导之后的数据眼的程度被确定。取决于数据眼的范围的确定，对发射机的反馈通过调整差分输入数据信号来预测差分输入的高频衰减来控制发射机上的数据眼和差分输入数据信号的均衡数据链路中的数据信号。

5. 发明申请

US20080137721A1 Automatic adaptive equalization method for high-speed serial transmission link 失效
标题翻译：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
申请人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna , Jeremy K. Stephens , Huihao Xu
发明人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna , Jeremy K. Stephens , Huihao Xu
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。

6. 发明授权

US08040813B2 Apparatus and method for reduced loading of signal transmission elements 有权
标题翻译：信号传输元件负载减小的装置和方法
公开(公告)号：US08040813B2
公开(公告)日：2011-10-18
申请号：US10908959
申请日：2005-06-02
申请人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna , Daniel W. Storaska
发明人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna , Daniel W. Storaska
IPC分类号： G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26 , H03K17/16 , G05F1/00 , H03K5/01 , H03K9/00 , H03K5/00 , H03K19/0175 , G01N30/86
CPC分类号： G06F13/4072
摘要： An apparatus is provided which includes a common signal node operable to conduct a first signal, a first circuit coupled to the common signal node to utilize the first signal and a signal-handling element coupled to the common signal node. The signal-handling element includes an isolating circuit coupled to the first conductor, a second conductor operable to conduct an output of the isolating circuit, and a signal-handling circuit coupled to the second conductor. The signal-handling circuit is operable to perform a signal-handling function in response to the output of the isolating circuit. By virtue of the isolating circuit, the signal-handling circuit and the first circuit are isolated from the second conductor and the signal-handling circuit. Preferably, the achieved isolation permits a communication signal included in the first signal to be conducted within a communication apparatus with less capacitance, and producing less return loss of that signal.
摘要翻译：提供一种装置，其包括可操作以传导第一信号的公共信号节点，耦合到公共信号节点以利用第一信号的第一电路和耦合到公共信号节点的信号处理元件。信号处理元件包括耦合到第一导体的隔离电路，可操作以导通隔离电路的输出的第二导体和耦合到第二导体的信号处理电路。信号处理电路可操作以响应于隔离电路的输出执行信号处理功能。通过隔离电路，信号处理电路和第一电路与第二导体和信号处理电路隔离。优选地，所实现的隔离允许包含在第一信号中的通信信号在具有较小电容的通信设备内传导，并且产生较小的该信号的回波损耗。

7. 发明授权

US08024679B2 Structure for apparatus for reduced loading of signal transmission elements 有权
标题翻译：信号传输元件负载减小的装置结构
公开(公告)号：US08024679B2
公开(公告)日：2011-09-20
申请号：US11999627
申请日：2007-12-06
申请人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna , Daniel W. Storaska
发明人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna , Daniel W. Storaska
IPC分类号： G06F17/50
CPC分类号： H03K19/0185 , H04L25/0266
摘要： A design structure for a signal-handing apparatus or communication apparatus is provided which includes a common signal node operable to conduct a first signal, a first circuit coupled to the common signal node to utilize the first signal and a signal-handling element coupled to the common signal node. A signal-handling apparatus may include an isolating circuit coupled to a first conductor, a second conductor to conduct an output of the isolating circuit, and a signal-handling circuit coupled to the second conductor. A signal-handling circuit can perform a signal-handling function in response to the output of the isolating circuit. The signal-handling circuit and the first circuit may be isolated from the second conductor and the signal-handling circuit such that a communication signal may be conducted with less capacitance and be subject to less return loss.
摘要翻译：提供了一种用于信号处理装置或通信装置的设计结构，其包括可操作以传导第一信号的公共信号节点，耦合到公共信号节点以利用第一信号的第一电路和耦合到第一信号的信号处理元件公共信号节点。信号处理装置可以包括耦合到第一导体的隔离电路，用于导通隔离电路的输出的第二导体以及耦合到第二导体的信号处理电路。信号处理电路可以响应于隔离电路的输出而执行信号处理功能。信号处理电路和第一电路可以与第二导体和信号处理电路隔离，使得通信信号可以以较小的电容进行并且具有较小的回波损耗。

8. 发明申请

US20090146692A1 Structure for apparatus for reduced loading of signal transmission elements 有权
标题翻译：信号传输元件负载减小的装置结构
公开(公告)号：US20090146692A1
公开(公告)日：2009-06-11
申请号：US11999627
申请日：2007-12-06
申请人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna , Daniel W. Storaska
发明人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna , Daniel W. Storaska
IPC分类号： H03K19/0175
CPC分类号： H03K19/0185 , H04L25/0266
摘要： A design structure for a signal-handing apparatus or communication apparatus is provided which includes a common signal node operable to conduct a first signal, a first circuit coupled to the common signal node to utilize the first signal and a signal-handling element coupled to the common signal node. A signal-handling apparatus may include an isolating circuit coupled to a first conductor, a second conductor to conduct an output of the isolating circuit, and a signal-handling circuit coupled to the second conductor. A signal-handling circuit can perform a signal-handling function in response to the output of the isolating circuit. The signal-handling circuit and the first circuit may be isolated from the second conductor and the signal-handling circuit such that a communication signal may be conducted with less capacitance and be subject to less return loss.
摘要翻译：提供了一种用于信号处理装置或通信装置的设计结构，其包括可操作以传导第一信号的公共信号节点，耦合到公共信号节点以利用第一信号的第一电路和耦合到第一信号的信号处理元件公共信号节点。信号处理装置可以包括耦合到第一导体的隔离电路，用于导通隔离电路的输出的第二导体以及耦合到第二导体的信号处理电路。信号处理电路可以响应于隔离电路的输出而执行信号处理功能。信号处理电路和第一电路可以与第二导体和信号处理电路隔离，使得通信信号可以以较小的电容进行并且具有较小的回波损耗。

9. 发明授权

US07102392B2 Signal detector for high-speed serdes 失效
标题翻译：高速伺服信号检测器
公开(公告)号：US07102392B2
公开(公告)日：2006-09-05
申请号：US10905704
申请日：2005-01-18
申请人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna
发明人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna
IPC分类号： H03K5/19
CPC分类号： H03K5/19 , G01R19/165
摘要： An improved signal detector system implementable in a high-speed SerDes receiver core that is able to detect valid signals from noise signals with a much tighter tolerance. The signal detector system improves upon the prior art designs by implementing modifications including: (1) the use of two peaking amplifiers for both (differential) input signals and reference to track and cancel gain variation; and, (2) the reduction of current mirroring stages to cut down current mapping error.
摘要翻译：改进的信号检测器系统可实现在高速SerDes接收机核心中，能够以更严格的公差检测来自噪声信号的有效信号。信号检测器系统通过实施修改来改进现有技术的设计，包括：（1）使用两个峰值放大器用于（差分）输入信号和参考跟踪和消除增益变化; 和（2）减少当前镜像阶段以减少当前的映射误差。

10. 发明授权

US07733964B2 Automatic adaptive equalization method for high-speed serial transmission link 失效
标题翻译：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
申请人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna , Jeremy K. Stephens , Huihao Xu
发明人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna , Jeremy K. Stephens , Huihao Xu
IPC分类号： H04B3/00 , H04L25/00
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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