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公开(公告)号：US20130064326A1
公开(公告)日：2013-03-14
申请号：US13228512
申请日：2011-09-09
IPC分类号： H04L27/00
CPC分类号： H04L25/0276 , H04L25/0298
摘要： A serial link receiver comprises first and second input terminals for receiving positive and negative inputs of a serial data signal, first and second broadband matching T-coils coupled to the first and second input terminals, first and second AC/DC coupling networks coupled to the first and second broadband matching T-coils, and a common mode level shifter coupled to the outputs from the first and second AC/DC coupling networks. This receiver architecture combines the ability to have a wide bandwidth input and pass through data signals at both low and high frequencies. This AC and DC coupled front end also incorporates the feature of a common mode level shifting network to place the common mode of the signal at the optimum point for the first active amplifier stage.
摘要翻译： 串行链路接收机包括用于接收串行数据信号的正和负输入的第一和第二输入端，耦合到第一和第二输入端的第一和第二宽带匹配T型线圈，耦合到第一和第二AC / DC耦合网络 第一和第二宽带匹配T型线圈，以及耦合到来自第一和第二AC / DC耦合网络的输出的共模电平移位器。 该接收机架构结合了具有宽带宽输入和通过低频和高频数据信号的能力。 该AC和DC耦合前端还结合了共模电平转换网络的特征，以将信号的共模放置在第一有源放大器级的最佳点。
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2.发明授权One-sample-per-bit decision feedback equalizer (DFE) clock and data recovery 失效单采样每位决策反馈均衡器（DFE）时钟和数据恢复公开(公告)号：US07809054B2
公开(公告)日：2010-10-05
申请号：US11405997
申请日：2006-04-18
申请人： Juan A. Carballo , Hayden C. Cranford, Jr. , Gareth J. Nicholls , Vernon R. Norman , Martin L. Schmatz
发明人： Juan A. Carballo , Hayden C. Cranford, Jr. , Gareth J. Nicholls , Vernon R. Norman , Martin L. Schmatz
CPC分类号： H04L25/03063
摘要： Disclosed are a receiver circuit, method and design architecture of a decision feedback equalizer (DFE) Clock-And-Data Recovery (CDR) architecture that utilizes/produces one sample-per-bit in the receiver and reduces bit-error-rate (BER). An integrating receiver is combined with a decision feedback equalizer along with the appropriate (CDR) loop phase detector to maintain a single sample per bit requirement. The incoming voltage is converted to a current and connected to a current summing node. Weighted currents determined by the values of previously detected bits and their respective feedback coefficients are also connected to this node. Additionally, the summed currents is integrated and converted to a voltage. A sampler is utilized to make a bit decision based on the resulting voltage. After sampling, the integrator is reset before analysis of the next bit. The necessary amplification is achieved by maximizing the sensitivity of the latch, using integration in front of the data latch.
摘要翻译： 公开了一种在接收机中利用/产生一个每位采样的判决反馈均衡器（DFE）时钟和数据恢复（CDR）架构的接收器电路，方法和设计架构，并且降低了误码率（BER ）。 集成接收机与决策反馈均衡器以及适当的（CDR）环路相位检测器相结合，以保持每位需求的单个采样。 输入电压被转换为电流并连接到电流求和节点。 由先前检测到的位及其各自的反馈系数的值确定的加权电流也连接到该节点。 另外，总和电流被积分并转换成电压。 采样器用于基于所得到的电压进行位决定。 采样后，积分器在分析下一位之前被复位。 通过使用在数据锁存器前面的积分来最大化锁存器的灵敏度来实现必要的放大。
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3.发明授权公开(公告)号：US07755420B2
公开(公告)日：2010-07-13
申请号：US12196718
申请日：2008-08-22
申请人： Anthony R. Bonaccio , Hayden C. Cranford, Jr. , Joseph A. Iadanza , Sebastian T. Ventrone , Stephen D. Wyatt
发明人： Anthony R. Bonaccio , Hayden C. Cranford, Jr. , Joseph A. Iadanza , Sebastian T. Ventrone , Stephen D. Wyatt
IPC分类号： H03K5/00
CPC分类号： G05F1/46
摘要： Analog supply for an analog circuit and process for supplying an analog signal to an analog circuit. The analog supply includes a noise filter having a variable resistor, and a control device coupled to adjust the variable resistor. The control device is structured and arranged to set the resistance of the variable resistor to maximize noise filtering and optimize performance of the analog circuit.
摘要翻译： 用于模拟电路的模拟电源和用于向模拟电路提供模拟信号的过程。 模拟电源包括具有可变电阻器的噪声滤波器和耦合以调节可变电阻器的控制装置。 控制装置被构造和布置成设置可变电阻器的电阻以最大化噪声滤波并优化模拟电路的性能。
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4.发明授权公开(公告)号：US07721134B2
公开(公告)日：2010-05-18
申请号：US11566576
申请日：2006-12-04
CPC分类号： G01R31/3171 , B82Y25/00 , G01R33/093
摘要： A method and system for determining the eye pattern margin parameters of a receiver system during diagnostic testing is presented. The circuitry in the receiver's front end comprises a series of latches, XOR gates and OR gates which first provide the data samples and edge samples, i.e., data sampled at the rising or falling edge of an (edge) clock characterized by a phase delay relative to the data sampling clock. The receiver also comprises optimization circuitry for the ideal alignment of the edge clock (edges) with the data edges. The method further provides for a phase shifting of the edge clock to the left and right from the ideal/locked position to screen the data eye pattern in order to compute the Bit Error Rate (BER) value. The position of the edge clock relative to the data sampling clock determines the horizontal eye opening for the computed BER.
摘要翻译： 提出了一种用于在诊断测试期间确定接收机系统的眼图边缘参数的方法和系统。 接收机前端的电路包括一系列锁存器，XOR门和OR门，它们首先提供数据样本和边缘采样，即在（边沿）时钟的上升沿或下降沿采样的数据，其特征在于相位延迟相对 到数据采样时钟。 接收机还包括用于边缘时钟（边缘）与数据边缘的理想对准的优化电路。 该方法还提供了边缘时钟从理想/锁定位置向左和向右移相以屏蔽数据眼图，以便计算误码率（BER）值。 边缘时钟相对于数据采样时钟的位置决定了计算的BER的水平眼睛开度。
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公开(公告)号：US07684478B2
公开(公告)日：2010-03-23
申请号：US11427831
申请日：2006-06-30
CPC分类号： G01R31/31711 , H04L1/205 , H04L1/24
摘要： A sequence of K voltage samples of a transmitted data signal is generated by sampling, digitizing, and storing voltage samples of the data signal with an imbedded sample clock on an IC having an unknown period TS. The K voltage samples are plotted against a time base of K sequential times TB[K] normalized so all samples fall within one cycle of the data clock used to generate the data signal or a unit time of 1. The time base is generated by estimating the sample clock period TSE to be some multiple of 1/P where P is greater than K. Eye diagrams are analyzed for time jitter wherein only the minimum value of jitter is saved. TSE is incremented by 1/P until TS is greater than one half the data clock period. The eye diagram at the TSE with the minimum time jitter is used to analyze the data channels.
摘要翻译： 通过在具有未知周期TS的IC上以嵌入的采样时钟采样，数字化和存储数据信号的电压采样来生成发送数据信号的K个电压样本的序列。 K电压样本相对于K次顺序TB [K]的时基绘制，归一化，所以所有采样都落在用于生成数据信号的数据时钟或单位时间为1的一个周期内。时基是通过估计 采样时钟周期TSE为1 / P的某个倍数，其中P大于K.眼图分析时间抖动，其中只保存抖动的最小值。 TSE递增1 / P，直到TS大于数据时钟周期的一半。 TSE具有最小时间抖动的眼图用于分析数据通道。
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公开(公告)号：US07661052B2
公开(公告)日：2010-02-09
申请号：US12021950
申请日：2008-01-29
IPC分类号： G06F11/277 , G06F11/16
CPC分类号： G01R31/31901 , G01R31/31707
摘要： A method and system for testing a high-speed circuit is disclosed. The method and system include obtaining a high-speed statistical signature of the high-speed circuit using a conventional tester. The method and system further include comparing the high-speed statistical signature of the high-speed circuit to an expected signature. Consequently, it can be determined whether the high-speed circuit functions within the desired parameters.
摘要翻译： 公开了一种用于测试高速电路的方法和系统。 该方法和系统包括使用常规测试仪获得高速电路的高速统计特征。 该方法和系统还包括将高速电路的高速统计签名与预期签名进行比较。 因此，可以确定高速电路是否在期望的参数内起作用。
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公开(公告)号：US20100031067A1
公开(公告)日：2010-02-04
申请号：US12183099
申请日：2008-07-31
IPC分类号： G06F1/03
摘要： A proactive noise suppression system and method for a power supply network of an integrated circuit. The system and method include receiving an IC event sequence to a memory element, correlating the IC event sequence to a storage location in a second memory element, the storage location including an anti-noise response signature, and utilizing the anti-noise response signature to proactively generate an anti-noise response in a power supply network in at least a portion of the integrated circuit at about the time of execution of the first IC event sequence. Anti-noise response signatures may be adaptively updated and/or created based on noise measurements made corresponding to execution of an IC event sequence by the integrated circuit.
摘要翻译： 一种用于集成电路的电源网络的主动噪声抑制系统和方法。 该系统和方法包括：向存储元件接收IC事件序列，将IC事件序列与第二存储器元件中的存储位置相关联，存储位置包括抗噪声响应签名，并将抗噪声响应签名 在执行第一IC事件序列时，在集成电路的至少一部分中，主动地在电力供应网络中产生抗噪声响应。 基于通过集成电路执行IC事件序列进行的噪声测量可以自适应地更新和/或创建抗噪声响应签名。
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8.发明申请APPARATUS FOR TRANSMITTING DATA AND ADDITIONAL INFORMATION SIMULTANEOUSLY WITHIN A WIRE-BASED COMMUNICATION SYSTEM 有权用于在基于线路的通信系统中同时发送数据和附加信息的装置公开(公告)号：US20090201973A1
公开(公告)日：2009-08-13
申请号：US12030478
申请日：2008-02-13
IPC分类号： H04B1/69
摘要： An apparatus is provided for transmitting data signals and additional information signals having partially overlapping frequency bands simultaneously within a wire based communication system over the same wired medium using a spread spectrum technique for modulating the additional information signals.
摘要翻译： 提供了一种装置，用于使用用于调制附加信息信号的扩展频谱技术，在同一有线介质上，在有线通信系统内同时发送具有部分重叠频带的数据信号和附加信息信号。
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公开(公告)号：US07566946B2
公开(公告)日：2009-07-28
申请号：US11865432
申请日：2007-10-01
IPC分类号： H01C10/00
CPC分类号： H01L27/0802 , H01L23/5256 , H01L2924/0002 , H01L2924/00
摘要： A circuit having a precision passive circuit element, such as a resistor or a capacitor, with a target value of an electrical parameter is fabricated on a substrate with a plurality of independent parallel-connected passive circuit elements. The plurality of passive circuit elements are designed to have a plurality of values of the electrical parameter which are spaced or offset at or around the target value of the electrical parameter, such as three circuit elements with one having a value at the target value, one having a value above the target value, and one having a value below the target value. Each passive circuit element also has a fuse in series therewith. A reference calibration structure is also fabricated, which can be a passive circuit element having the target value of the electrical parameter, in a reference area of the substrate under the same conditions and at the same time as fabrication of the plurality of passive circuit elements. The actual component value of the reference calibration structure is then measured, and based upon the measurement a single precision passive element of the plurality of parallel passive circuit elements is selected by blowing the fuses of, and thus deselecting, the other independent parallel connected passive circuit elements.
摘要翻译： 在具有多个独立并联无源电路元件的基板上制造具有目标值为电参数的精密无源电路元件（例如电阻器或电容器）的电路。 多个无源电路元件被设计为具有电参数的多个值，其在电参数的目标值处或周围被间隔或偏移，例如具有值在目标值的三个电路元件，一个 具有高于目标值的值，并且具有低于目标值的值。 每个无源电路元件还具有与其串联的保险丝。 还可以在相同条件下的基板的参考区域中以及在制造多个无源电路元件的同时，制造参考校准结构，其可以是具有电参数的目标值的无源电路元件。 然后测量参考校准结构的实际分量值，并且基于测量，多个并联无源电路元件中的单精度无源元件通过吹入另一个独立并联无源电路的熔丝并因此取消选择来选择 元素。
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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
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。
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