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39 条记录 (耗时 0.035 秒)

    System and method for equalizing an incoming signal
    31.
    发明授权
    System and method for equalizing an incoming signal 有权
    用于均衡输入信号的系统和方法

    公开(公告)号：US08036260B2

    公开(公告)日：2011-10-11

    申请号：US11896184

    申请日：2007-08-30

    申请人： Kaushal K. Dhar ,  Timothy R. Miller

    发明人： Kaushal K. Dhar ,  Timothy R. Miller

    IPC分类号： H03H7/30 ,  H03K5/159

    CPC分类号： H04L25/03057 ,  H04L2025/0349 ,  H04L2025/03592

    摘要： An equalizer is provided, including: a feedback combiner to combine an input signal and a feedback signal to produce a first signal; a delay line to delay the first signal to produce a second signal; a feed-forward combiner to combine the second signal and a feed-forward signal to produce an output signal; an interim decision circuit to extract a sign bit from the first signal; N feedback scaling elements to generate N scaled feedback signals; M feed-forward scaling elements to generate M scaled feed forward signals; a feedback circuit to pass the N scaled feedback signals through feedback delay elements and feedback summing elements to generate the feedback signal in response to the sign bit; and a feed forward circuit to pass the M scaled feed forward signals through feed-forward delay elements and feed-forward summing elements to generate the feed-forward signal in response to the sign bit.

    摘要翻译： 提供均衡器，包括：反馈组合器，用于组合输入信号和反馈信号以产生第一信号; 延迟线，用于延迟所述第一信号以产生第二信号; 前馈组合器，用于组合第二信号和前馈信号以产生输出信号; 临时决定电路，用于从第一信号中提取符号位; N个反馈缩放元件以产生N个缩放的反馈信号; M前馈缩放元素以产生M个缩放的前馈信号; 反馈电路，用于通过反馈延迟元件和反馈求和元件传递N个缩放的反馈信号，以响应于符号位产生反馈信号; 以及前馈电路，用于通过前馈延迟元件和前馈求和元件传递M个定标前馈信号，以响应于符号位产生前馈信号。

    System and method for calibrating an analog signal path during operation in an ultra wideband receiver
    33.
    发明授权
    System and method for calibrating an analog signal path during operation in an ultra wideband receiver 失效
    用于在超宽带接收机中操作期间校准模拟信号路径的系统和方法

    公开(公告)号：US07697614B2

    公开(公告)日：2010-04-13

    申请号：US11239082

    申请日：2005-09-30

    申请人： Bobby L. Barnes ,  Timothy R. Miller

    发明人： Bobby L. Barnes ,  Timothy R. Miller

    IPC分类号： H04L27/08

    CPC分类号： H04B1/71637

    摘要： A system (500) and method (400) are presented for calibrating an analog signal path (200) associated with an Ultra Wideband (UWB) receiver (103). The analog signal path includes a plurality of analog gain stages (210, 212-214, 216), a local oscillator mixer stage (211), a compensation stage (218), and a converter stage (219). An information signal includes whitened symbols (306). When a predetermined number of whitened symbols are accumulated for one of a plurality of gain configurations, an arithmetic mean is calculated and used an offset value. The offset value is retrieved whenever the gain configuration is activated and applied at the compensation stage to reduce the offset.

    摘要翻译： 提出了一种用于校准与超宽带（UWB）接收机（103）相关联的模拟信号路径（200）的系统（500）和方法（400）。 模拟信号路径包括多个模拟增益级（210,212-214,216），本地振荡器混频器级（211），补偿级（218）和转换级（219）。 信息信号包括白化符号（306）。 当为多个增益配置之一累积预定数量的白化符号时，计算算术平均值并使用偏移值。 当增益配置被激活并在补偿阶段施加以减少偏移时，检索偏移值。

    Method for sharing bandwidth using reduced duty cycle signals and media access control
    35.
    发明授权
    Method for sharing bandwidth using reduced duty cycle signals and media access control 有权
    使用减少的占空比信号和媒体访问控制共享带宽的方法

    公开(公告)号：US07570627B2

    公开(公告)日：2009-08-04

    申请号：US11128269

    申请日：2005-05-13

    申请人： Matthew L. Welborn ,  William M. Shvodian ,  Joel Z. Apisdorf ,  Timothy R. Miller ,  John W. McCorkle

    发明人： Matthew L. Welborn ,  William M. Shvodian ,  Joel Z. Apisdorf ,  Timothy R. Miller ,  John W. McCorkle

    IPC分类号： H04J3/00 ,  H04B7/212 ,  H04W4/00 ,  H04J3/24 ,  H01Q11/12 ,  H04B1/04

    CPC分类号： H04W52/367 ,  H04B1/7176 ,  H04W52/286 ,  H04W72/12

    摘要： A method is provided for transmitting data. A first device generates a first signal having a first duty cycle, comprising a first gated-on portion and a first gated-off portion in a time slot; and a second device generates a second signal having second duty cycle, comprising a second gated-on portion and a second gated-off portion in the same time slot. The first gated-on portion is generated during a first segment of the time slot and the first gated-off portion is generated during a second segment of the time slot, while the second gated-on portion is generated during the second segment and the second gated-off portion is generated during the first segment. Media access control (MAC) can be used to further define positions within time slots and provide error correction, power control, and the like. A preamble can be transmitted at an increased power level to facilitate acquisition.

    摘要翻译： 提供了一种用于传输数据的方法。 第一装置产生具有第一占空比的第一信号，包括时隙中的第一选通部分和第一门控部分; 并且第二装置产生具有第二占空比的第二信号，该第二信号包括相同时隙中的第二选通部分和第二门控部分。 在时隙的第一段期间产生第一选通部分，并且在时隙的第二段期间生成第一门控部分，而在第二段期间产生第二门控部分，而第二门控部分在第二段期间产生， 在第一段期间产生门限部分。 媒体访问控制（MAC）可用于进一步定义时隙内的位置，并提供纠错，功率控制等。 可以以增加的功率电平发送前导码以便于采集。

    System and method for determining signal phase
    36.
    发明申请
    System and method for determining signal phase 有权
    用于确定信号相位的系统和方法

    公开(公告)号：US20080240292A1

    公开(公告)日：2008-10-02

    申请号：US11730258

    申请日：2007-03-30

    申请人： Timothy R. Miller

    发明人： Timothy R. Miller

    IPC分类号： H03K9/00

    CPC分类号： H04L7/007

    摘要： A receiver circuit (200) is provided, comprising: an agile clock (250) configured to generate an agile clock signal having a controllable agile clock phase based on agile clock control signals; a code processor (260) configured to receive an incoming signal and the agile clock signal, and to generate an on-time signal (110) and an error signal (120) corresponding to the incoming signal; a coarse acquisition circuit (270, 310) configured to identify a coarse acquisition phase based on a total power of the on-time signal and plus a total power of the error signal; a fine acquisition circuit (270, 320) configured to identify a fine acquisition phase based on the coarse acquisition phase and a magnitude of the on-time signal; and an acquisition controller (270, 330) configured to control operation of the coarse acquisition circuit and the fine acquisition circuit, and to provide a final acquisition phase as a current phase based on the one or more fine acquisition phases.

    摘要翻译： 提供了一种接收机电路（200），包括：敏捷时钟（250），被配置为基于敏捷时钟控制信号产生具有可控敏捷时钟相位的敏捷时钟信号; 配置成接收输入信号和敏捷时钟信号并产生对应于输入信号的导通时间信号（110）和误差信号（120）的代码处理器（260） 被配置为基于接通时间信号的总功率识别粗略采集相位并加上误差信号的总功率的粗略采集电路（270,310） 配置为基于所述粗略获取相位和所述接通时间信号的大小来识别精细采集相位的精细采集电路（270,320）; 以及被配置为控制粗略采集电路和精细采集电路的操作的采集控制器（270,330），并且基于所述一个或多个精细采集阶段来提供作为当前阶段的最终采集阶段。

    Circuit and method for adjusting timing alignment using programmable codes
    37.
    发明授权
    Circuit and method for adjusting timing alignment using programmable codes 有权
    使用可编程代码调整定时对准的电路和方法

    公开(公告)号：US07362840B2

    公开(公告)日：2008-04-22

    申请号：US10990367

    申请日：2004-11-18

    申请人： Terence L. Johnson ,  Timothy R. Miller ,  Nitin Sharma

    发明人： Terence L. Johnson ,  Timothy R. Miller ,  Nitin Sharma

    IPC分类号： H04L7/00 ,  H04L25/00 ,  H04L25/40

    CPC分类号： H04B1/7183 ,  H04B1/71632

    摘要： A method is provided for adjusting timing alignment in which a receiver generates a plurality of imbalanced correction codes (1310), and square waves both having the same frequency. The receiver mixes the imbalanced correction codes with the square waves to create a mixed signal (1320), and integrates the mixed signal over a correction code period to generate a signal power value (1330). The receiver adjusts a phase of the square wave in a first direction when the signal power value satisfies a first criterion (1340, 1350), and in a second direction when the signal power value satisfies a second criterion (1340, 1360). Each imbalanced correction code is symmetrical. And a total integrated value of one of the imbalanced correction codes over the correction code period is either above a first threshold, or below a second threshold, the first threshold being greater than or equal to the second threshold.

    摘要翻译： 提供了一种用于调整接收器产生多个不平衡校正码（1310）的定时对准的方法以及具有相同频率的方波。 接收器将不平衡校正码与方波混合以产生混合信号（1320），并且通过校正码周期对混合信号进行积分以产生信号功率值（1330）。 当信号功率值满足第一标准（1340,1350）时，接收器在第一方向上调整方波的相位，并且当信号功率值满足第二标准（1340,1360）时，第二方向调整方波的相位。 每个不平衡校正码是对称的。 并且在校正码周期中不平衡校正码之一的总积分值大于第一阈值或低于第二阈值，第一阈值大于或等于第二阈值。

    Method and apparatus for acquiring and tracking ultrawide bandwidth signals
    38.
    发明授权
    Method and apparatus for acquiring and tracking ultrawide bandwidth signals 有权
    用于获取和跟踪超宽带宽信号的方法和装置

    公开(公告)号：US07212799B2

    公开(公告)日：2007-05-01

    申请号：US10654922

    申请日：2003-09-05

    申请人： Timothy R. Miller ,  John W. McCorkle ,  Adrian R. Macias

    发明人： Timothy R. Miller ,  John W. McCorkle ,  Adrian R. Macias

    IPC分类号： H04B1/06

    CPC分类号： H04L7/10 ,  H04B1/7075 ,  H04B1/7183 ,  H04B2201/70715

    摘要： A method is provided for fast acquisition in a wireless network. This method involves receiving a first wireless signal at a receiving device, sent from a transmitting device; determining a first transmitting clock phase of the transmitting device by performing first acquisition and tracking processes on the first wireless signal; storing the first transmitting clock phase in the receiving device; receiving a second wireless signal at a receiving device, sent from the transmitting device after the first wireless signal; and determining a second transmitting clock phase of the transmitting device by performing a second acquisition process on the second wireless signal using the first transmitting clock phase as starting phase data. By using the stored first transmitting clock phase information as a starting point for acquisition, the receiving device can perform a second acquisition process that is much faster than a blind acquisition.

    摘要翻译： 提供了一种用于在无线网络中快速采集的方法。 该方法包括从发送装置发送的接收装置接收第一无线信号; 通过对所述第一无线信号执行第一采集和跟踪处理来确定所述发射设备的第一传输时钟相位; 将所述第一发送时钟相位存储在所述接收装置中; 在所述第一无线信号之后从所述发送设备接收在接收设备处的第二无线信号; 以及通过使用所述第一发送时钟相位作为所述第二无线信号的开始相位数据来确定所述发送装置的第二发送时钟相位。 通过使用存储的第一发送时钟相位信息作为采集的起始点，接收装置可以执行比盲采取快得多的第二获取处理。