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1. 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。

2. 发明授权

US06891357B2 Reference current generation system and method 有权
标题翻译：参考电流发电系统及方法
公开(公告)号：US06891357B2
公开(公告)日：2005-05-10
申请号：US10249545
申请日：2003-04-17
申请人： Hibourahima Camara , Louis Lu-Chen Hsu , Karl D. Selander , Michael A. Sorna
发明人： Hibourahima Camara , Louis Lu-Chen Hsu , Karl D. Selander , Michael A. Sorna
IPC分类号： G05F1/565 , G05F3/16 , G05F1/10
CPC分类号： G05F1/565
摘要： As disclosed herein, systems and methods are provided for generating and distributing a plurality of reference currents on an integrated circuit. In a particular embodiment, an integrated circuit is disclosed which includes a reference current generator adapted to generate a plurality of reference currents. Such circuit includes an operational amplifier coupled to receive, at a first polarity input, a reference voltage, and a first transistor Q1 having a biasing input coupled to an output of the operational amplifier. The first transistor also has an output coupled to a fixed potential through a first resistor R1, and the output of the first transistor Q1 is further coupled as feedback to a second polarity input of the operational amplifier. One or more second transistors Qi are provided in the circuit, each of which has a biasing input coupled to the output of the operational amplifier, and an output coupled to the fixed potential through a respective second resistor Ri. In order to conserve chip area and power, the outputs of the second transistors Qi are not coupled as feedback to the operational amplifier. By the action of the operational amplifier, bias is maintained on the first transistor Q1 and each of the second transistors Qi for each to conduct a reference current Isi.
摘要翻译：如本文所公开的，提供了用于在集成电路上产生和分配多个参考电流的系统和方法。在特定实施例中，公开了一种集成电路，其包括适于产生多个参考电流的参考电流发生器。这种电路包括运算放大器，耦合以在第一极性输入处接收参考电压，以及具有耦合到运算放大器的输出的偏置输入的第一晶体管Q1。第一晶体管还具有通过第一电阻器R 1耦合到固定电位的输出，并且第一晶体管Q1的输出进一步耦合到反馈到运算放大器的第二极性输入端。一个或多个第二晶体管Qi被提供在电路中，每个具有耦合到运算放大器的输出的偏置输入，以及通过相应的第二电阻器R1耦合到固定电位的输出。为了节省芯片面积和功率，第二晶体管Qi的输出不作为反馈耦合到运算放大器。通过运算放大器的作用，第一晶体管Q 1和第二晶体管Q i中的每一个都保持偏置来导通参考电流Isi。

3. 发明授权

US07132821B2 Reference current generation system 失效
标题翻译：参考电流发电系统
公开(公告)号：US07132821B2
公开(公告)日：2006-11-07
申请号：US11103314
申请日：2005-04-11
申请人： Hibourahima Camara , Louis Lu-Chen Hsu , Karl D. Selander , Michael A. Sorna
发明人： Hibourahima Camara , Louis Lu-Chen Hsu , Karl D. Selander , Michael A. Sorna
IPC分类号： G05F3/16 , G05F1/10 , H03F3/45
CPC分类号： G05F1/565
摘要： Systems are provided for generating and distributing a plurality of reference currents on an integrated circuit. More particularly, an integrated circuit is provided which includes a reference current generating system. The reference current generating system includes a first reference current generator disposed at a first location of the integrated circuit which is operable to generate a plurality of first reference currents. A plurality of second reference current generators are disposed at a plurality of second locations of the integrated circuit. Each of the second reference current generators are operable to generate a second reference current from one of the plurality of first reference currents. In a particular example, the first location at which the first reference current generator is disposed is a central location and the second locations are disposed remote from the first location.
摘要翻译：提供了用于在集成电路上生成和分配多个参考电流的系统。更具体地，提供了包括参考电流产生系统的集成电路。参考电流产生系统包括设置在集成电路的第一位置处的第一参考电流发生器，其可操作以产生多个第一参考电流。多个第二参考电流发生器设置在集成电路的多个第二位置处。每个第二参考电流发生器可操作以从多个第一参考电流之一产生第二参考电流。在特定示例中，设置第一参考电流发生器的第一位置是中心位置，并且第二位置远离第一位置设置。

4. 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。

5. 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。

6. 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。

7. 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。

8. 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。

9. 发明授权

US07295618B2 Automatic adaptive equalization method and system for high-speed serial transmission link 失效
标题翻译：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
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： 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。

10. 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。

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