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    • 4. 发明申请
    • SYSTEM AND METHOD FOR USING PROGRAMMABLE FREQUENCY OFFSETS IN A DATA NETWORK
    • 在数据网络中使用可编程频率偏移的系统和方法
    • WO2006060267A3
    • 2007-02-01
    • PCT/US2005042627
    • 2005-11-22
    • FREESCALE SEMICONDUCTOR INCMCCORKLE JOHN WMILLER TIMOTHY R
    • MCCORKLE JOHN WMILLER TIMOTHY R
    • H04L7/00
    • H04L27/0014H03B21/00H03B2200/0078H04B1/7183H04L2007/047H04L2027/0016
    • A method is provided for offsetting a reference frequency of a quadrature reference clock signal. A quadrature reference clock (110) generates the quadrature reference clock signal at the reference frequency, while a quadrature variable offset clock (130) generates a quadrature clock signal at a base offset frequency based on a base offset value it receives from a control circuit (560). The base offset value can be determined in many ways, including reading it from a local memory (910) or receiving it from a remote device (1010). A polyphase mixer (140) performs a polyphase mixing operation between the quadrature reference clock signal and the offset clock signal to generate an agile clock signal having an agile clock frequency equal to the reference frequency plus the base offset frequency. If desired, the method can revise the offset frequency based on actual conditions and determine a corresponding revised offset value (920, 1020).
    • 提供了一种用于抵消正交参考时钟信号的参考频率的方法。 正交参考时钟(110)以参考频率产生正交参考时钟信号,而正交可变偏移时钟(130)基于从控制电路接收的基本偏移值以基本偏移频率产生正交时钟信号( 560)。 基本偏移值可以以许多方式确定,包括从本地存储器(910)读取或从远程设备(1010)接收基本偏移值。 多相混合器(140)在正交参考时钟信号和偏移时钟信号之间执行多相混合操作,以产生具有等于参考频率加上基极偏移频率的敏捷时钟频率的敏捷时钟信号。 如果需要,该方法可以根据实际条件修改偏移频率,并确定对应的修正偏移值(920,1020)。
    • 5. 发明申请
    • CIRCUIT AND METHOD FOR DYNAMICALLY ADJUSTING A FILTER BANDWIDTH
    • 用于动态调整滤波器带宽的电路和方法
    • WO2006071508A3
    • 2007-02-22
    • PCT/US2005044974
    • 2005-12-13
    • FREESCALE SEMICONDUCTOR INCJOHNSON TERENCE LMILLER TIMOTHY R
    • JOHNSON TERENCE LMILLER TIMOTHY R
    • H03D3/24
    • H03L7/093H03D13/00H03L7/0991H04L7/0004H04L7/033
    • A tracking circuit (100) is provided for controlling a locally-generated clock. A receive channel (110) in the tracking circuit receives an incoming signal and a local clock, generates a local signal based on the local clock, and compares the local signal and the incoming signal to generate a data signal and an unfiltered phase error signal. A loop filter (120) filters the unfiltered phase error signal to provide a filtered phase error signal. A numerically controlled oscillator (140) generates a correction clock based on the filtered phase error signal. And a filter control circuit (160) provides one or more filter control signals to control operational parameters of the loop filter. The correction clock is provided to the receive channel to modify at least one of the phase and frequency of the local clock. In addition, a sample switch (125) may also be provided to sample the unfiltered phase error signal.
    • 提供跟踪电路(100)用于控制本地产生的时钟。 跟踪电路中的接收通道(110)接收输入信号和本地时钟,基于本地时钟产生本地信号,并且比较本地信号和输入信号以产生数据信号和未滤波的相位误差信号。 环路滤波器(120)对未滤波的相位误差信号进行滤波以提供滤波的相位误差信号。 数控振荡器(140)基于滤波的相位误差信号产生校正时钟。 并且滤波器控制电路(160)提供一个或多个滤波器控制信号以控制环路滤波器的操作参数。 校正时钟被提供给接收通道以修改本地时钟的相位和频率中的至少一个。 此外,还可以提供采样开关(125)以对未滤波的相位误差信号进行采样。
    • 7. 发明申请
    • METHOD FOR SHARING BANDWIDTH USING REDUCED DUTY CYCLE SIGNALS AND MEDIA ACCESS CONTROL
    • 使用减少占空比信号和媒体访问控制共享带宽的方法
    • WO2006098891A3
    • 2007-10-25
    • PCT/US2006007470
    • 2006-03-02
    • FREESCALE SEMICONDUCTOR INCWELBORN MATTHEW LSHVODIAN WILLIAM MAPISDORF JOEL ZMILLER TIMOTHY RMCCORKLE JOHN W
    • WELBORN MATTHEW LSHVODIAN WILLIAM MAPISDORF JOEL ZMILLER TIMOTHY RMCCORKLE JOHN W
    • H04J3/00
    • H04W52/367H04B1/7176H04W52/286H04W72/12
    • A method is provided for transmitting data. A first device (121) generates a first signal (320) having a first duty cycle, comprising a first gated-on portion (323) and a first gated-off portion (326) a time slot (260); and a second device (125) generates a second signal (330) having second duty cycle, comprising a second gated-on portion (333) and a second gated-off portion (336) in the same time slot (260). The first gated-on portion (323) is generated during a first segment of the time slot (260) and the first gated-off portion (326) is generated during a second segment of the time slot (260), while the second gated-on portion (333) is generated during the second segment and the second gated-off portion (336) is generated during the first segment. Media access control (MAC) can be used to further define positions within time slots (250) and provide error correction, power control, and the like. A preamble (860) can be transmitted at an increased power level to facilitate acquisition.
    • 提供了一种传输数据的方法。 第一装置(121)产生具有第一占空比的第一信号(320),包括第一选通部分(323)和第一门控部分(326)时隙(260); 并且第二装置(125)产生具有第二占空比的第二信号(330),该第二信号包括相同时隙(260)中的第二选通部分(333)和第二选通部分(336)。 在时隙(260)的第一段期间产生第一选通部分(323),并且在时隙(260)的第二段期间产生第一选通截止部分(326),而第二选通 在第二段期间产生部分(333),并且在第一段期间产生第二选通部分(336)。 媒体访问控制(MAC)可用于进一步定义时隙内的位置(250),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(860)以便于采集。
    • 8. 发明申请
    • METHOD AND SYSTEM FOR CONTROLLING A NOTCHING MECHANISM
    • 用于控制凹口机构的方法和系统
    • WO2007041142A3
    • 2007-09-27
    • PCT/US2006037628
    • 2006-09-25
    • FREESCALE SEMICONDUCTOR INCMCCORKLE JOHN WMILLER TIMOTHY R
    • MCCORKLE JOHN WMILLER TIMOTHY R
    • G08C15/00
    • H04B1/1036
    • A circuit (100) is provided for notching an incoming wireless signal. The circuit comprises: a notching mechanism (110) for receiving an incoming signal and generating a notched signal having reduced power at the notch frequency (320), the notch frequency being adjustable in response to a notching control signal; a signal parameter detector (165, 170, 175, 180, 185) for detecting a signal parameter of the notched signal (325); a controller (155) for receiving the signal parameter and for generating the notching control signal (315), the controller being configured to vary the signal parameter within a notching control signal range (340); and a memory (160) for storing the signal parameter and the notching control signal received from the controller in a notching database (330). The controller is configured to analyze the notching database to determine an optimal notching control signal to achieve a desired level of signal performance (345).
    • 提供电路(100)用于切入输入的无线信号。 所述电路包括:切口机构(110),用于接收输入信号并产生在所述陷波频率(320)具有降低功率的陷波信号,所述陷波频率可响应于开槽控制信号而被调整; 信号参数检测器(165,170,175,180,185),用于检测所述有缺口信号(325)的信号参数; 控制器(155),用于接收所述信号参数并用于产生所述开槽控制信号(315),所述控制器被配置为在所述开槽控制信号范围内改变所述信号参数(340); 以及存储器(160),用于将从控制器接收的信号参数和开槽控制信号存储在开槽数据库(330)中。 控制器被配置为分析开槽数据库以确定最佳的陷波控制信号以实现期望的信号性能水平(345)。
    • 10. 发明申请
    • CIRCUIT AND METHOD FOR RAKE TRAINING DURING ACQUISITION
    • 收购期间进行RAKE培训的电路和方法
    • WO2006083528A2
    • 2006-08-10
    • PCT/US2006001399
    • 2006-01-17
    • FREESCALE SEMICONDUCTOR INCMILLER TIMOTHY R
    • MILLER TIMOTHY R
    • H04B1/707
    • H04B1/712
    • A method is provided for training a rake finger (200). In this method the rake finger receives a data signal including a plurality of signal components having a plurality of signal phase values, respectively. (620). The rake finger then sets a current acquisition phase for a locally-generated signal (620) and then calculates a value of an autocorrelation function for the received data signal with the locally-generated signal at the current acquisition phase. (630). The rake finger determines when the autocorrelation function is at a peak value (640), saving the peak value in a storage device (290) when the autocorrelation function is at the peak value (650). The rake finger can then set a finger weight (W) for the rake finger based on the peak value stored in the storage device. This method can be performed at least in part during an acquisition process for the rake finger.
    • 提供了一种用于训练耙指(200)的方法。 在该方法中,耙指分别接收包括具有多个信号相位值的多个信号分量的数据信号。 (620)。 然后,耙指针对本地产生的信号(620)设置当前获取阶段,然后在当前采集阶段用本地产生的信号计算接收数据信号的自相关函数的值。 (630)。 耙指确定何时自相关函数处于峰值(640),当自相关函数处于峰值(650)时,将峰值保存在存储装置(290)中。 然后,耙指可以基于存储在存储装置中的峰值来设定耙指的手指重量(W)。 该方法可以至少部分地在耙指的获取过程中进行。