公开(公告)号：US20100109731A1

公开(公告)日：2010-05-06

申请号：US12560943

申请日：2009-09-16

申请人： Jin-Ho Ko ,  Seng-Hyun Cho ,  Hyung-Chul Park ,  Dae-Sik Park

发明人： Jin-Ho Ko ,  Seng-Hyun Cho ,  Hyung-Chul Park ,  Dae-Sik Park

IPC分类号： H03K3/017

CPC分类号： H03K5/1565

摘要： There is provided an apparatus for duty cycle correction. The apparatus for duty cycle correction comprises a moving sum unit performing a moving sum calculation with respect to the square-wave signal and outputting the moving sum signal subjected to moving sum calculation, a comparison unit comparing the moving sum signal with a predetermined threshold voltage, outputting a high signal or low signal, a mean value calculation unit calculating the mean value of an output signal outputted from the comparison unit, the output signal being included in a section having a period integer times greater than that of the square-wave signal, and a threshold voltage control unit comparing the mean value with a middle value, increasing the threshold voltage when the mean value is greater than the middle value, and decreasing the threshold voltage when the mean value is less than the middle value.

摘要翻译： 提供了一种用于占空比校正的装置。 用于占空比校正的装置包括：移动和单元，执行相对于方波信号的移动和计算，并输出经过移动和计算的移动和信号;比较单元，将移动和信号与预定阈值电压进行比较; 输出高信号或低信号的平均值计算单元，计算从比较单元输出的输出信号的平均值，输出信号被包括在具有比方波信号的整数倍的周期的区间中， 以及阈值电压控制单元，将平均值与中间值进行比较，当平均值大于中间值时增加阈值电压，并且当平均值小于中间值时降低阈值电压。

公开(公告)号：US07920004B2

公开(公告)日：2011-04-05

申请号：US12560943

申请日：2009-09-16

申请人： Jin-Ho Ko ,  Sang-Hyun Cho ,  Hyung-Chul Park ,  Dae-Sik Park

发明人： Jin-Ho Ko ,  Sang-Hyun Cho ,  Hyung-Chul Park ,  Dae-Sik Park

IPC分类号： H03K3/017

CPC分类号： H03K5/1565

摘要： There is provided an apparatus for duty cycle correction. The apparatus for duty cycle correction comprises a moving sum unit performing a moving sum calculation with respect to the square-wave signal and outputting the moving sum signal subjected to moving sum calculation, a comparison unit comparing the moving sum signal with a predetermined threshold voltage, outputting a high signal or low signal, a mean value calculation unit calculating the mean value of an output signal outputted from the comparison unit, the output signal being included in a section having a period integer times greater than that of the square-wave signal, and a threshold voltage control unit comparing the mean value with a middle value, increasing the threshold voltage when the mean value is greater than the middle value, and decreasing the threshold voltage when the mean value is less than the middle value.

摘要翻译： 提供了一种用于占空比校正的装置。 用于占空比校正的装置包括：移动和单元，执行相对于方波信号的移动和计算，并输出经过移动和计算的移动和信号;比较单元，将移动和信号与预定阈值电压进行比较; 输出高信号或低信号的平均值计算单元，计算从比较单元输出的输出信号的平均值，输出信号被包括在具有比方波信号的整数倍的周期的区间中， 以及阈值电压控制单元，将平均值与中间值进行比较，当平均值大于中间值时增加阈值电压，并且当平均值小于中间值时降低阈值电压。

公开(公告)号：US07889817B2

公开(公告)日：2011-02-15

申请号：US12301873

申请日：2008-06-03

申请人： Hyung-Chul Park

发明人： Hyung-Chul Park

IPC分类号： H04L27/06

CPC分类号： G06K19/0723

摘要： The present invention relates to a radio frequency signal receiver, and more particularly, to a radio frequency signal receiver of a communication system, in which local devices exchange a radio frequency signal with each other. The object of the present invention is to provide a radio frequency signal receiver that exactly restores data from a received signal without a complex circuit restoring a phase of a received signal. It is another object of the present invention to provide a radio frequency signal receiver that eliminates noise when the noise is included in the received signal, estimates an exact data rate of the received signal, and exactly restores received information based on the estimated data rate thereof.The radio frequency signal receiver includes: a phase converting unit converting a phase of a received digital signal to predetermined angles to produce a plurality of output signals having different phases; and decoding units decoding the plurality of output signals from the phase converting unit, respectively.According to the present invention, data may be restored from a received signal without a complex circuit restoring a phase of a received signal. Moreover, when noise is included in the received signal, the noise is eliminated, an exact data rate of the received signal is estimated, and received information may be exactly restored.

摘要翻译： 射频信号接收机技术领域本发明涉及射频信号接收机，更具体地说，涉及本地设备彼此交换射频信号的通信系统的射频信号接收机。 本发明的目的是提供一种射频信号接收机，其在没有复数电路恢复接收信号的相位的情况下，从接收信号中精确地恢复数据。 本发明的另一个目的是提供一种射频信号接收机，当接收信号中包含噪声时，消除噪声，估计接收信号的准确数据速率，并且基于其估计的数据速率精确地恢复所接收的信息 。 射频信号接收机包括：相位转换单元，将接收到的数字信号的相位转换成预定角度，以产生具有不同相位的多个输出信号; 以及解码单元，分别从相位转换单元解码多个输出信号。 根据本发明，可以从接收到的信号中恢复数据，而不需要复原电路来恢复接收信号的相位。 此外，当接收信号中包含噪声时，消除噪声，估计接收信号的准确数据速率，并且可以精确地恢复所接收的信息。

公开(公告)号：US08300744B2

公开(公告)日：2012-10-30

申请号：US12695860

申请日：2010-01-28

申请人： Sun a Kim ,  Dae-Young Yoon ,  Sang-Gug Lee ,  Hyung-Chul Park ,  Jeong-seon Lee

发明人： Sun a Kim ,  Dae-Young Yoon ,  Sang-Gug Lee ,  Hyung-Chul Park ,  Jeong-seon Lee

IPC分类号： H03D1/04

CPC分类号： H04L27/3863 ,  H03D3/009 ,  H03D7/166 ,  H03D7/18 ,  H04B1/30

摘要： The present invention relates to an apparatus for rejecting images in a receiver.The apparatus of the present invention relates to an apparatus for rejecting image signals in a receiver of a direct conversion structure and comprises a signal mismatch compensation unit configured to detect gain error and phase error between an In-phase (I) signal and a Quadrature (Q) signal received through the receiver, to reject image signals existing in the I and Q signals, and to output a result. The signal mismatch compensation unit detects the gain error and the phase error using an adaptive step method of reducing the step size of the gain error and the phase error step by step whenever the gain error and the phase error are converged.According to the present invention, high image rejection ratio is achieved and the adaptation time taken to obtain a high image rejection ratio is reduced simultaneously. Further, a bad influence of the DC offset on the image rejection ratio can be prevented by removing DC offset signals in a digital structure, accordingly, error can be accurately estimated.

摘要翻译： 本发明涉及一种用于拒绝接收机中的图像的装置。 本发明的装置涉及一种用于拒绝直接转换结构的接收机中的图像信号的装置，并且包括：信号失配补偿单元，被配置为检测同相（I）信号和正交（I）信号之间的增益误差和相位误差， Q）信号，以消除存在于I和Q信号中的图像信号，并输出结果。 信号失配补偿单元使用自适应步长法，在增益误差和相位误差收敛的情况下逐步减小增益误差的步长和相位误差来检测增益误差和相位误差。 根据本发明，实现了高的图像抑制比，同时降低了获得高的图像抑制比所需的适应时间。 此外，通过去除数字结构中的DC偏移信号，可以防止DC偏移对图像抑制比的不良影响，因此可以准确地估计误差。

公开(公告)号：US20110182388A1

公开(公告)日：2011-07-28

申请号：US12695860

申请日：2010-01-28

申请人： Sun a. Kim ,  Dae-Young Yoon ,  Sang-Gug Lee ,  Hyung-Chul Park ,  Jeongseon Lee

发明人： Sun a. Kim ,  Dae-Young Yoon ,  Sang-Gug Lee ,  Hyung-Chul Park ,  Jeongseon Lee

IPC分类号： H04L27/08

CPC分类号： H04L27/3863 ,  H03D3/009 ,  H03D7/166 ,  H03D7/18 ,  H04B1/30

摘要： The present invention relates to an apparatus for rejecting images in a receiver.The apparatus of the present invention relates to an apparatus for rejecting image signals in a receiver of a direct conversion structure and comprises a signal mismatch compensation unit configured to detect gain error and phase error between an In-phase (I) signal and a Quadrature (Q) signal received through the receiver, to reject image signals existing in the I and Q signals, and to output a result. The signal mismatch compensation unit detects the gain error and the phase error using an adaptive step method of reducing the step size of the gain error and the phase error step by step whenever the gain error and the phase error are converged.According to the present invention, high image rejection ratio is achieved and the adaptation time taken to obtain a high image rejection ratio is reduced simultaneously. Further, a bad influence of the DC offset on the image rejection ratio can be prevented by removing DC offset signals in a digital structure, accordingly, error can be accurately estimated.

摘要翻译： 本发明涉及一种用于拒绝接收机中的图像的装置。 本发明的装置涉及一种用于拒绝直接转换结构的接收机中的图像信号的装置，并且包括：信号失配补偿单元，被配置为检测同相（I）信号和正交（I）信号之间的增益误差和相位误差， Q）信号，以消除存在于I和Q信号中的图像信号，并输出结果。 信号失配补偿单元使用自适应步长法，在增益误差和相位误差收敛的情况下逐步减小增益误差的步长和相位误差来检测增益误差和相位误差。 根据本发明，实现了高的图像抑制比，同时降低了获得高的图像抑制比所需的适应时间。 此外，通过去除数字结构中的DC偏移信号，可以防止DC偏移对图像抑制比的不良影响，因此可以准确地估计误差。

公开(公告)号：US20100246724A1

公开(公告)日：2010-09-30

申请号：US12301873

申请日：2008-06-03

申请人： Hyung-Chul Park

发明人： Hyung-Chul Park

IPC分类号： H04L27/06

CPC分类号： G06K19/0723

摘要： [Problem] The present invention relates to a radio frequency signal receiver, and more particularly, to a radio frequency signal receiver of a communication system, in which local devices exchange a radio frequency signal with each other. The object of the present invention is to provide a radio frequency signal receiver that exactly restores data from a received signal without a complex circuit restoring a phase of a received signal. It is another object of the present invention to provide a radio frequency signal receiver that eliminates noise when the noise is included in the received signal, estimates an exact data rate of the received signal, and exactly restores received information based on the estimated data rate thereof.[Solution] The radio frequency signal receiver includes: a phase converting unit converting a phase of a received digital signal to predetermined angles to produce a plurality of output signals having different phases; and decoding units decoding the plurality of output signals from the phase converting unit, respectively.According to the present invention, data may be restored from a received signal without a complex circuit restoring a phase of a received signal. Moreover, when noise is included in the received signal, the noise is eliminated, an exact data rate of the received signal is estimated, and received information may be exactly restored.

摘要翻译： 射频信号接收机技术领域本发明涉及射频信号接收机，更具体地，涉及本地设备彼此交换射频信号的通信系统的射频信号接收机。 本发明的目的是提供一种射频信号接收机，其在没有复数电路恢复接收信号的相位的情况下，从接收信号中精确地恢复数据。 本发明的另一个目的是提供一种射频信号接收机，当接收信号中包含噪声时，消除噪声，估计接收信号的准确数据速率，并且基于其估计的数据速率精确地恢复所接收的信息 。 解决方案射频信号接收机包括：相位转换单元，将接收到的数字信号的相位转换成预定角度，以产生具有不同相位的多个输出信号; 以及解码单元，分别从相位转换单元解码多个输出信号。 根据本发明，可以从接收到的信号中恢复数据，而不需要复原电路来恢复接收信号的相位。 此外，当接收信号中包含噪声时，消除噪声，估计接收信号的准确数据速率，并且可以精确地恢复所接收的信息。