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85 条记录 (耗时 0.028 秒)

    Phase locked loop and method for compensating temperature thereof
    4.
    发明授权
    Phase locked loop and method for compensating temperature thereof 有权
    锁相环及其温度补偿方法

    公开(公告)号：US07952435B2

    公开(公告)日：2011-05-31

    申请号：US11976912

    申请日：2007-10-29

    申请人： Seung-Wook Lee ,  Joonbac Park ,  Jeong Woo Lee ,  Su Won Kang ,  Kyeongho Lee

    发明人： Seung-Wook Lee ,  Joonbac Park ,  Jeong Woo Lee ,  Su Won Kang ,  Kyeongho Lee

    IPC分类号： H03L7/00

    CPC分类号： H03L7/099 ,  H03L1/026 ,  H03L7/113 ,  H03L7/187

    摘要： Embodiments of a phase lock loop and a method for compensating a temperature thereof can output an initial tuning digital value for a voltage controlled oscillator configured to output a desired phase lock loop frequency compensated according to a temperature change. Embodiments of a phase lock loop and a method for compensating a temperature thereof can simultaneously perform a digital coarse tuning and an analog fine tuning to compensate for a temperature in a limited time.

    摘要翻译： 锁相环的实施例和用于补偿其温度的方法可以输出用于输出根据温度变化补偿的期望锁相环的压控振荡器的初始调谐数字值。 锁相环的实施例和用于补偿其温度的方法可以同时进行数字粗调和模拟微调以在有限的时间内补偿温度。

    Apparatus for measuring in-phase and quadrature (IQ) imbalance
    5.
    发明授权
    Apparatus for measuring in-phase and quadrature (IQ) imbalance 有权
    用于测量同相和正交（IQ）不平衡的装置

    公开(公告)号：US07995645B2

    公开(公告)日：2011-08-09

    申请号：US12027762

    申请日：2008-02-07

    申请人： Kyeongho Lee ,  Joonbae Park ,  Jeong Woo Lee ,  Seung-Wook Lee ,  Eal Wan Lee

    发明人： Kyeongho Lee ,  Joonbae Park ,  Jeong Woo Lee ,  Seung-Wook Lee ,  Eal Wan Lee

    IPC分类号： H04B3/46

    CPC分类号： H03D7/166 ,  H03D3/009 ,  H04L25/061 ,  H04L27/364 ,  H04L27/3863 ,  H04L2027/0016

    摘要： The present general inventive concept relates to apparatuses and/or methods for measuring an in-phase and quadrature (IQ) imbalance. In one embodiment, a signal generator can provide a first IQ signal of a DC component during a first period and the first IQ signal of a first angular frequency during a second period, an IQ up-conversion mixer can up-convert the first IQ signal by a second angular frequency during the first period and up-convert the first IQ signal by a third angular frequency during the second period to output a second IQ signal, an IQ down-conversion mixer can down-convert the second IQ signal by the third angular frequency to output a third IQ signal and an IQ imbalance detector can obtain a first IQ imbalance (e.g., Rx IQ imbalance) from the third IQ signal during the first period and a second IQ imbalance (e.g., Tx/Rx IQ imbalance) during the second period.

    摘要翻译： 本总体发明构思涉及用于测量同相和正交（IQ）不平衡的装置和/或方法。 在一个实施例中，信号发生器可以在第一周期期间提供DC分量的第一IQ信号，并且在第二周期期间提供第一角频率的第一IQ信号，IQ上变频混频器可以上变频第一IQ信号 在第一周期期间以第二角度频率进行第二角度频率，并且在第二周期期间将第一IQ信号上升转换第三角度频率以输出第二IQ信号，IQ降频转换混频器可以将第二IQ信号下变频第三IQ信号 输出第三IQ信号和IQ不平衡检测器的角频率可以在第一周期期间从第三IQ信号和第二IQ不平衡（例如，Tx / Rx IQ不平衡）获得第一IQ不平衡（例如，Rx IQ不平衡） 第二期。

    Phase locked loop and method for compensating temperature thereof
    6.
    发明申请
    Phase locked loop and method for compensating temperature thereof 有权
    锁相环及其温度补偿方法

    公开(公告)号：US20080252383A1

    公开(公告)日：2008-10-16

    申请号：US11976912

    申请日：2007-10-29

    申请人： Seung Wook Lee ,  Joonbac Park ,  Jeong Woo Lee ,  Su Won Kang ,  Kyeongho Lee

    发明人： Seung Wook Lee ,  Joonbac Park ,  Jeong Woo Lee ,  Su Won Kang ,  Kyeongho Lee

    IPC分类号： H03L7/10

    CPC分类号： H03L7/099 ,  H03L1/026 ,  H03L7/113 ,  H03L7/187

    摘要： Embodiments of a phase lock loop and a method for compensating a temperature thereof can output an initial tuning digital value for a voltage controlled oscillator configured to output a desired phase lock loop frequency compensated according to a temperature change. Embodiments of a phase lock loop and a method for compensating a temperature thereof can simultaneously perform a digital coarse tuning and an analog fine tuning to compensate for a temperature in a limited time.

    摘要翻译： 锁相环的实施例和用于补偿其温度的方法可以输出用于输出根据温度变化补偿的期望锁相环的压控振荡器的初始调谐数字值。 锁相环的实施例和用于补偿其温度的方法可以同时进行数字粗调和模拟微调以在有限的时间内补偿温度。

    System and method for filtering signals in a transceiver
    9.
    发明申请
    System and method for filtering signals in a transceiver 有权
    用于对收发器中的信号进行滤波的系统和方法

    公开(公告)号：US20050048928A1

    公开(公告)日：2005-03-03

    申请号：US10927013

    申请日：2004-08-27

    申请人： Young-Deuk Jeon ,  Seung-Wook Lee ,  Jeong-Woo Lee ,  Joonbae Park ,  Kyeongho Lee

    发明人： Young-Deuk Jeon ,  Seung-Wook Lee ,  Jeong-Woo Lee ,  Joonbae Park ,  Kyeongho Lee

    IPC分类号： H04B1/38

    CPC分类号： H04B1/1027 ,  H03H11/1252 ,  H03H11/1291 ,  H03J1/0008 ,  H04B1/44

    摘要： A system and method for filtering signals in a communications system reduces hardware and chip size requirements by selectively connecting a filter along transmitter and receiver paths of a transceiver. In operation, a controller generated signals for connecting the filter along the transmitter path when the transceiver is in transmitter mode and for connecting the filter along the receiver path when the transmitter is in receiver mode. The controller then generates additional signals for setting one or more parameters of the filter based on the path connected, or put differently based on the operational mode of the transceiver. In a variation, the controller sets the parameters of additional elements coupled to the filter as a way of further controlling processing of the transmitter and receiver signals. The system and method are particularly well suited to controlling the filtering of signals at the front-end of the transceiver having a direct-conversion architecture and in general ones performing time-multiplexing applications.

    摘要翻译： 用于对通信系统中的信号进行滤波的系统和方法通过沿收发器的发射机和接收机路径选择性地连接滤波器来降低硬件和芯片尺寸的要求。 在操作中，当收发器处于发射机模式时，控制器产生用于沿着发射机路径连接滤波器的信号，并且当发射机处于接收机模式时，控制器沿着接收机路径连接滤波器。 然后，控制器产生附加信号，用于基于连接的路径设置滤波器的一个或多个参数，或者基于收发器的操作模式进行不同的设置。 在一个变型中，控制器设置耦合到滤波器的附加元件的参数作为进一步控制发射机和接收机信号的处理的一种方式。 该系统和方法特别适用于控制在具有直接转换架构的收发器的前端处的信号的滤波，并且通常执行时间复用应用。

    APPARATUS FOR MEASURING IQ IMBALANCE
    10.
    发明申请
    APPARATUS FOR MEASURING IQ IMBALANCE 有权
    测量智商不平等的方法

    公开(公告)号：US20080212662A1

    公开(公告)日：2008-09-04

    申请号：US12027762

    申请日：2008-02-07

    申请人： Kyeongho Lee ,  Joonbae Park ,  Jeong Woo Lee ,  Seung-Wook Lee ,  Eal Wan Lee

    发明人： Kyeongho Lee ,  Joonbae Park ,  Jeong Woo Lee ,  Seung-Wook Lee ,  Eal Wan Lee

    IPC分类号： H04L25/06 ,  H04B17/00 ,  H04B3/46 ,  H04Q1/20

    CPC分类号： H03D7/166 ,  H03D3/009 ,  H04L25/061 ,  H04L27/364 ,  H04L27/3863 ,  H04L2027/0016

    摘要： The present general inventive concept relates to apparatuses and/or methods for measuring an IQ imbalance. In one embodiment, a signal generator can provide a first IQ signal of a DC component during a first period and the first IQ signal of a first angular frequency during a second period, an IQ up-conversion mixer can up-convert the first IQ signal by a second angular frequency during the first period and up-convert the first IQ signal by a third angular frequency during the second period to output a second IQ signal, an IQ down-conversion mixer can down-convert the second IQ signal by the third angular frequency to output a third IQ signal and an IQ imbalance detector can obtain a first IQ imbalance (e.g., Rx IQ imbalance) from the third IQ signal during the first period and a second IQ imbalance (e.g., Tx/Rx IQ imbalance) during the second period.

    摘要翻译： 本发明总体构思涉及用于测量IQ不平衡的装置和/或方法。 在一个实施例中，信号发生器可以在第一周期期间提供DC分量的第一IQ信号，并且在第二周期期间提供第一角频率的第一IQ信号，IQ上变频混频器可以上变频第一IQ信号 在第一周期期间以第二角度频率进行第二角度频率，并且在第二周期期间将第一IQ信号上升转换第三角度频率以输出第二IQ信号，IQ降频转换混频器可以将第二IQ信号下变频第三IQ信号 输出第三IQ信号和IQ不平衡检测器的角频率可以在第一周期期间从第三IQ信号和第二IQ不平衡（例如，Tx / Rx IQ不平衡）获得第一IQ不平衡（例如，Rx IQ不平衡） 第二期。