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1. 发明授权

US07995645B2 Apparatus for measuring in-phase and quadrature (IQ) imbalance 有权
标题翻译：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。

2. 发明申请

US20080212662A1 APPARATUS FOR MEASURING IQ IMBALANCE 有权
标题翻译：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。

3. 发明授权

US08229028B2 Apparatus for measuring IQ imbalance 有权
标题翻译： IQ不平衡测量装置
公开(公告)号：US08229028B2
公开(公告)日：2012-07-24
申请号：US12034627
申请日：2008-02-20
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： H04K1/02
CPC分类号： H04L27/3863 , H04L27/364
摘要： The present invention relates to an apparatus and a method for measuring an in phase and quadrature (IQ) imbalance. One embodiment according to the present general inventive concept can provide a method for measuring a Tx IQ imbalance generated in an IQ up-conversion mixer and an Rx IQ imbalance generated in an IQ down-conversion mixer, that includes measuring a first IQ imbalance corresponding to a first combination of the Rx IQ imbalance with the Tx IQ imbalance, measuring a second IQ imbalance corresponding to a second combination of the Rx IQ imbalance with the Tx IQ imbalance and obtaining the Tx IQ imbalance and the Rx IQ imbalance from the first IQ imbalance and the second IQ imbalance.
摘要翻译：本发明涉及用于测量同相和正交（IQ）不平衡的装置和方法。根据本发明总体构思的一个实施例可以提供一种用于测量在IQ上变频混频器中产生的Tx IQ不平衡和在IQ下变频混频器中产生的Rx IQ不平衡的方法，其包括测量对应于 Rx IQ不平衡与Tx IQ不平衡的第一组合，测量对应于Rx IQ不平衡与Tx IQ不平衡的第二组合的第二IQ不平衡，并且从第一IQ不平衡获得Tx IQ不平衡和Rx IQ不平衡和第二个智商不平衡。

4. 发明授权

US08018990B2 Apparatus for measuring in-phase and quadrature (IQ) imbalance 有权
标题翻译：用于测量同相和正交（IQ）不平衡的装置
公开(公告)号：US08018990B2
公开(公告)日：2011-09-13
申请号：US12027742
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： H04L27/364 , H04L27/3863
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 detector can measure an error caused by an IQ imbalance using a first IQ signal including a desired signal and a corresponding image signal by the IQ imbalance. The detector can include a derotator to derotate the first IQ signal by a first angular frequency to obtain a second IQ signal and derotate the first IQ signal by a second angular frequency to obtain a third IQ signal, a DC estimator to obtain a fourth IQ signal corresponding to a DC component of the second IQ signal and a fifth IQ signal corresponding to a DC component of the third IQ signal and a controller can determine a gain error or a phase error from the fourth IQ signal and the fifth IQ signal.
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，检测器可以通过IQ不平衡来使用包括期望信号和对应图像信号的第一IQ信号来测量由IQ不平衡引起的误差。检测器可以包括解旋器，以将第一IQ信号扭转第一角度频率以获得第二IQ信号并且将第一IQ信号解旋第二角频率以获得第三IQ信号，DC估计器以获得第四IQ信号对应于第二IQ信号的DC分量和对应于第三IQ信号的DC分量的第五IQ信号，并且控制器可以从第四IQ信号和第五IQ信号确定增益误差或相位误差。

5. 发明申请

US20090028231A1 APPARATUS FOR MEASURING IQ IMBALANCE 有权
标题翻译：测量智商不平等的方法
公开(公告)号：US20090028231A1
公开(公告)日：2009-01-29
申请号：US12034627
申请日：2008-02-20
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： H04B17/00
CPC分类号： H04L27/3863 , H04L27/364
摘要： The present invention relates to an apparatus and a method for measuring an IQ imbalance. One embodiment according to the present general inventive concept can provide a method for measuring a Tx IQ imbalance generated in an IQ up-conversion mixer and an Rx IQ imbalance generated in an IQ down-conversion mixer, that includes measuring a first IQ imbalance corresponding to a first combination of the Rx IQ imbalance with the Tx IQ imbalance, measuring a second IQ imbalance corresponding to a second combination of the Rx IQ imbalance with the Tx IQ imbalance and obtaining the Tx IQ imbalance and the Rx IQ imbalance from the first IQ imbalance and the second IQ imbalance.
摘要翻译：本发明涉及一种用于测量IQ不平衡的装置和方法。根据本发明总体构思的一个实施例可以提供一种用于测量在IQ上变频混频器中产生的Tx IQ不平衡和在IQ下变频混频器中产生的Rx IQ不平衡的方法，其包括测量对应于 Rx IQ不平衡与Tx IQ不平衡的第一组合，测量对应于Rx IQ不平衡与Tx IQ不平衡的第二组合的第二IQ不平衡，并且从第一IQ不平衡获得Tx IQ不平衡和Rx IQ不平衡和第二个智商不平衡。

6. 发明申请

US20080205502A1 APPARATUS FOR MEASURING IQ IMBALANCE 有权
标题翻译：测量智商不平等的方法
公开(公告)号：US20080205502A1
公开(公告)日：2008-08-28
申请号：US12027742
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 , H04B17/00 , H04Q1/20
CPC分类号： H04L27/364 , H04L27/3863
摘要： The present general inventive concept relates to apparatuses and/or methods for measuring an IQ imbalance. In one embodiment, a detector can measure an error caused by an IQ imbalance using a first IQ signal including a desired signal and a corresponding image signal by the IQ imbalance. The detector can include a derotator to derotate the first IQ signal by a first angular frequency to obtain a second IQ signal and derotate the first IQ signal by a second angular frequency to obtain a third IQ signal, a DC estimator to obtain a fourth IQ signal corresponding to a DC component of the second IQ signal and a fifth IQ signal corresponding to a DC component of the third IQ signal and a controller can determine a gain error or a phase error from the fourth IQ signal and the fifth IQ signal.
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，检测器可以通过IQ不平衡来使用包括期望信号和对应图像信号的第一IQ信号来测量由IQ不平衡引起的误差。检测器可以包括解旋器，以将第一IQ信号扭转第一角度频率以获得第二IQ信号并且将第一IQ信号解旋第二角频率以获得第三IQ信号，DC估计器以获得第四IQ信号对应于第二IQ信号的DC分量和对应于第三IQ信号的DC分量的第五IQ信号，并且控制器可以从第四IQ信号和第五IQ信号确定增益误差或相位误差。

7. 发明授权

US08243579B2 OFDM receiving circuit having multiple demodulation paths using oversampling analog-to-digital converter 有权
标题翻译： OFDM接收电路具有使用过采样模数转换器的多个解调路径
公开(公告)号：US08243579B2
公开(公告)日：2012-08-14
申请号：US11976909
申请日：2007-10-29
申请人： Seung-Wook Lee , Joonbae Park , Jeong Woo Lee , Su Won Kang , Kyeongho Lee
发明人： Seung-Wook Lee , Joonbae Park , Jeong Woo Lee , Su Won Kang , Kyeongho Lee
IPC分类号： H04J11/00
CPC分类号： H04L27/2647
摘要： Embodiments according to the application relates to an OFDM (orthogonal frequency division multiplexing) receiving circuit and methods thereof configured to have a plurality of demodulation paths for an oversampling ADC, which can increase or improve an overall performance of the circuit.
摘要翻译：根据本申请的实施例涉及一种OFDM（正交频分复用）接收电路及其方法，被配置为具有用于过采样ADC的多个解调路径，其可以增加或提高电路的整体性能。

8. 发明授权

US07202741B2 Highly linear variable gain amplifier 有权
标题翻译：高线性可变增益放大器
公开(公告)号：US07202741B2
公开(公告)日：2007-04-10
申请号：US11066546
申请日：2005-02-28
申请人： Joonbae Park , Seung-Wook Lee , Jeong-Woo Lee , Kyeongho Lee
发明人： Joonbae Park , Seung-Wook Lee , Jeong-Woo Lee , Kyeongho Lee
IPC分类号： H03F3/45
CPC分类号： H03F3/211 , H03F3/45475 , H03F3/45659 , H03F2203/45136 , H03F2203/45138 , H03F2203/45166 , H03F2203/45168 , H03F2203/45434 , H03F2203/45522 , H03F2203/45591
摘要： A variable-gain amplifier circuit uses a pair of single-ended operational amplifiers to amplify complementary portions of a differential input signal. By using two single-ended amplifiers instead of a single differential amplifier, linearity is significantly improved. In addition, common mode feedback circuitry is eliminated along with harmonic distortion and other forms of noise which tend to negative affect the quality of the signal output from the circuit.
摘要翻译：可变增益放大器电路使用一对单端运算放大器来放大差分输入信号的互补部分。通过使用两个单端放大器而不是单个差分放大器，线性度显着提高。此外，消除共模反馈电路以及谐波失真和其他形式的噪声，这些噪声倾向于负面影响从电路输出的信号的质量。

9. 发明申请

US20060001489A1 Highly linear variable gain amplifier 有权
标题翻译：高线性可变增益放大器
公开(公告)号：US20060001489A1
公开(公告)日：2006-01-05
申请号：US11066546
申请日：2005-02-28
申请人： Joonbae Park , Seung-Wook Lee , Jeong-Woo Lee , Kyeongho Lee
发明人： Joonbae Park , Seung-Wook Lee , Jeong-Woo Lee , Kyeongho Lee
IPC分类号： H03F3/45
CPC分类号： H03F3/211 , H03F3/45475 , H03F3/45659 , H03F2203/45136 , H03F2203/45138 , H03F2203/45166 , H03F2203/45168 , H03F2203/45434 , H03F2203/45522 , H03F2203/45591
摘要： A variable-gain amplifier circuit uses a pair of single-ended operational amplifiers to amplify complementary portions of a differential input signal. By using two single-ended amplifiers instead of a single differential amplifier, linearity is significantly improved. In addition, common mode feedback circuitry is eliminated along with harmonic distortion and other forms of noise which tend to negative affect the quality of the signal output from the circuit.
摘要翻译：可变增益放大器电路使用一对单端运算放大器来放大差分输入信号的互补部分。通过使用两个单端放大器而不是单个差分放大器，线性度显着提高。此外，消除共模反馈电路以及谐波失真和其他形式的噪声，这些噪声倾向于负面影响从电路输出的信号的质量。

10. 发明申请

US20050048928A1 System and method for filtering signals in a transceiver 有权
标题翻译：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。

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