IQ imbalance compensation
    1.
    发明授权
    IQ imbalance compensation 有权
    智商不平衡补偿

    公开(公告)号:US07466768B2

    公开(公告)日:2008-12-16

    申请号:US10867120

    申请日:2004-06-14

    IPC分类号: H04B1/66 H04L5/12 H04L7/00

    摘要: The present invention discloses a method and apparatus of IQ imbalance compensation for a receiver. The repetitive attribute of the preamble in a signal received by the receiver is used to estimate the IQ imbalance parameters. The data carried by the preamble repeats itself every N sampling intervals. A MSE equation is derived based on assuming the ratios between any two sampling points separated by N samples are identical, and the IQ imbalance parameters can be estimated by solving the MSE equation using the LS algorithm. Consequently, the IQ mismatch offset of the signal is compensated according to the estimated parameters.

    摘要翻译: 本发明公开了一种用于接收机的IQ不平衡补偿的方法和装置。 由接收机接收的信号中的前导码的重复属性用于估计IQ不平衡参数。 前导码携带的数据每N个采样间隔重复一次。 基于假设由N个样本分开的任何两个采样点之间的比率相同,导出MSE方程,并且可以通过使用LS算法求解MSE方程来估计IQ不平衡参数。 因此,根据估计的参数来补偿信号的IQ失配偏移。

    IQ imbalance compensation
    2.
    发明申请
    IQ imbalance compensation 有权
    智商不平衡补偿

    公开(公告)号:US20050276354A1

    公开(公告)日:2005-12-15

    申请号:US10867120

    申请日:2004-06-14

    IPC分类号: H04L27/00 H04L27/22

    摘要: The present invention discloses a method and apparatus of IQ imbalance compensation for a receiver. The repetitive attribute of the preamble in a signal received by the receiver is used to estimate the IQ imbalance parameters. The data carried by the preamble repeats itself every N sampling intervals. A MSE equation is derived based on assuming the ratios between any two sampling points separated by N samples are identical, and the IQ imbalance parameters can be estimated by solving the MSE equation using the LS algorithm. Consequently, the IQ mismatch offset of the signal is compensated according to the estimated parameters.

    摘要翻译: 本发明公开了一种用于接收机的IQ不平衡补偿的方法和装置。 由接收机接收的信号中的前导码的重复属性用于估计IQ不平衡参数。 前导码携带的数据每N个采样间隔重复一次。 基于假设由N个样本分开的任何两个采样点之间的比率相同,导出MSE方程,并且可以通过使用LS算法求解MSE方程来估计IQ不平衡参数。 因此,根据估计的参数来补偿信号的IQ失配偏移。

    Target signal determination method and associated apparatus
    3.
    发明授权
    Target signal determination method and associated apparatus 有权
    目标信号确定方法及相关装置

    公开(公告)号:US09313057B2

    公开(公告)日:2016-04-12

    申请号:US12912200

    申请日:2010-10-26

    CPC分类号: H04L25/065 G10L25/06 H03L1/00

    摘要: A method and associated apparatus using delay correlation for determining whether an input signal is a target signal is provided. The method includes sampling the input signal to generate 2N sample values, the sample values having a period N, where N is a positive integer; calculating the 2N sample values to obtain a first value according to a first operation method; calculating the 2N sample values to obtain a second value according to a second operation method; obtaining a determination value according to the first value and the second value; and determining whether the input signal is the target signal according to the determination value and a threshold.

    摘要翻译: 提供了一种使用延迟相关来确定输入信号是否是目标信号的方法和相关装置。 该方法包括采样输入信号以产生2N个采样值,采样值具有周期N,其中N是正整数; 根据第一操作方法计算2N个样本值以获得第一值; 根据第二操作方法计算2N个样本值以获得第二值; 根据第一值和第二值获得确定值; 以及根据所述确定值和阈值确定所述输入信号是所述目标信号。

    Decoding method and associated apparatus
    4.
    发明授权
    Decoding method and associated apparatus 有权
    解码方法及相关设备

    公开(公告)号:US08503585B2

    公开(公告)日:2013-08-06

    申请号:US12891408

    申请日:2010-09-27

    IPC分类号: H04L27/06 H03M13/03

    CPC分类号: H04L1/0059 H04L1/0054

    摘要: A decoding method for determining a preferred survivor path in a decoding process is provided. The method includes calculating a first determination value of a first survivor path at a first time point, the first determination value being determined by a first sub determination value and a second determination value at a second time point, and the second time point being prior to the first time point; calculating a third determination value of a second survivor path at the first time point, the third determination value being determined by a second sub determination value and a fourth determination value at the second time point; and when a difference between the first determination value and the third determination value is equal to or less than a predetermined value, determining the preferred survivor path at the first time point according to the second and the fourth determination values, or the first and the second sub determination values.

    摘要翻译: 提供了一种用于在解码过程中确定优选幸存者路径的解码方法。 该方法包括在第一时间点计算第一幸存者路径的第一确定值,第一确定值由第二次确定值和第二时间点处的第二确定值确定,并且第二时间点在 第一时间点; 在第一时间点计算第二幸存者路径的第三确定值,第三确定值由第二时间点的第二子确定值和第四确定值确定; 并且当第一确定值和第三确定值之间的差值等于或小于预定值时,根据第二和第四确定值确定在第一时间点的优选幸存路径,或者第一和第二确定值 子确定值。

    Method for Prevention of Distorted Sub-Picture Display on a Flat Panel Display
    5.
    发明申请
    Method for Prevention of Distorted Sub-Picture Display on a Flat Panel Display 审中-公开
    在平板显示器上防止变形的副图像显示的方法

    公开(公告)号:US20070075925A1

    公开(公告)日:2007-04-05

    申请号:US11164633

    申请日:2005-11-30

    IPC分类号: G09G3/28 G09G3/36

    摘要: The present invention discloses a method for prevention of distorted sub-picture display on a flat panel display. The display image of the flat panel display comprises a main picture and a sub-picture. While a drop line is performed on the main picture, image data output of the sub-picture is stopped. As the drop line is finished, image data output of the sub-picture is resumed. The method of stopping the output of image data of the sub-picture is adopted as a way to stop outputting a timing control signal used for controlling the image data output of the sub-picture, wherein the timing control signal is a horizontal synchronization signal or a clock signal. The timing control signal does not change logic state level while the drop line occurs. The image data of the sub-picture will not be discarded or masked while the drop line occurs. This prevents a distorted sub-picture on the flat panel display.

    摘要翻译: 本发明公开了一种在平板显示器上防止副图像显示失真的方法。 平板显示器的显示图像包括主图像和副图像。 当在主图像上执行下降线时,子画面的图像数据输出被停止。 当下降线完成时,副图像的图像数据输出被恢复。 采用停止副图像的图像数据的输出的方法作为停止输出用于控制副图像的图像数据输出的定时控制信号的方法,其中定时控制信号是水平同步信号或 一个时钟信号。 定时控制信号在下降线发生时不改变逻辑状态电平。 子画面的图像数据不会在下降线发生时丢弃或屏蔽。 这样可以防止平板显示器上出现失真的副图像。

    Soft decision method and associated signal receiving system
    6.
    发明授权
    Soft decision method and associated signal receiving system 有权
    软判决方法及相关信号接收系统

    公开(公告)号:US08705662B2

    公开(公告)日:2014-04-22

    申请号:US12910108

    申请日:2010-10-22

    IPC分类号: H03D3/00

    CPC分类号: H04L25/067

    摘要: A soft decision method for determining a soft decision coordinate associated with a constellation is provided. The soft decision coordinate includes a first soft decision sub-coordinate and a second soft decision sub-coordinate. The method includes receiving an input signal including a coordinate value; defining a first coordinate range on a coordinate axis in the constellation, the first coordinate range having a first limit and a second limit; obtaining the first soft decision sub-coordinate according to the first coordinate range; defining a second coordinate range on the coordinate axis in the constellation, the second coordinate range having a third limit and a fourth limit; and obtaining the second soft decision sub-coordinate according to the second coordinate range; wherein the first and the third limit do not simultaneously equal to the second and the fourth limit.

    摘要翻译: 提供了用于确定与星座相关联的软判决坐标的软判决方法。 软判决坐标包括第一软判决子坐标和第二软判决子坐标。 该方法包括接收包括坐标值的输入信号; 在所述星座图中的坐标轴上定义第一坐标范围,所述第一坐标范围具有第一限制和第二限制; 根据第一坐标范围获得第一软判决子坐标; 在星座中的坐标轴上定义第二坐标范围,第二坐标范围具有第三极限和第四极限; 以及根据所述第二坐标范围获得所述第二软判决子坐标; 其中第一和第三极限不同时等于第二和第四极限。

    Method and Associated Apparatus Applied to Receiver of Wireless Network for Determining Quantity of Antennas of Transmitter
    7.
    发明申请
    Method and Associated Apparatus Applied to Receiver of Wireless Network for Determining Quantity of Antennas of Transmitter 有权
    用于确定发射机天线数量的无线网络接收机的方法和相关装置

    公开(公告)号:US20130171943A1

    公开(公告)日:2013-07-04

    申请号:US13471574

    申请日:2012-05-15

    IPC分类号: H04W24/00

    摘要: A method applied to a receiver of a wireless network for determining an unknown quantity of antennas of a transmitter according to a received network is provided. The method includes: delaying the network signal according to a sum of a reference period and an estimated shift interval to provide a delayed signal; calculating a correlation between the network signal and the delayed signal to generate a correlation index; comparing the correlation index and a threshold to provide a comparison result; and determining the unknown quantity of transmitting antennas according to the comparison result.

    摘要翻译: 提供了一种应用于无线网络的接收机的方法,用于根据接收的网络确定发射机的未知数量的天线。 该方法包括:根据参考周期和估计的移位间隔的和来延迟网络信号以提供延迟的信号; 计算网络信号和延迟信号之间的相关性以产生相关指数; 比较相关指标和阈值以提供比较结果; 并根据比较结果确定发射天线的未知数量。

    SPREAD SPECTRUM CLOCK SIGNAL GENERATOR
    8.
    发明申请
    SPREAD SPECTRUM CLOCK SIGNAL GENERATOR 有权
    传播频谱信号发生器

    公开(公告)号:US20090323768A1

    公开(公告)日:2009-12-31

    申请号:US12478166

    申请日:2009-06-04

    IPC分类号: H04B1/00

    CPC分类号: H04B15/04

    摘要: A spread spectrum clock signal generator for spreading an input clock signal into an output clock signal includes a clock signal delay chain for delaying the input clock signal into a delay clock signal group having a plurality of delay clock signals, a modulation controller for outputting a counter clock signal control signal, a clock signal selection circuit for selecting, from the delay clock signal group, a modulation clock signal group having a plurality of modulation clock signals, a programmable counter for generating a counting value according to a counter clock signal, and a clock signal output unit for combining the modulation clock signals into the output clock signal according to the counting value, and further generating the counter clock signal, outputted to the programmable counter, according to the counter clock signal control signal.

    摘要翻译: 用于将输入时钟信号扩展为输出时钟信号的扩频时钟信号发生器包括用于将输入时钟信号延迟为具有多个延迟时钟信号的延迟时钟信号组的时钟信号延迟链,用于输出计数器的调制控制器 时钟信号控制信号,用于从延迟时钟信号组中选择具有多个调制时钟信号的调制时钟信号组的时钟信号选择电路,用于根据计数器时钟信号产生计数值的可编程计数器,以及 时钟信号输出单元,用于根据计数值将调制时钟信号组合成输出时钟信号,并根据计数器时钟信号控制信号进一步产生输出到可编程计数器的计数器时钟信号。

    Spread spectrum clock signal generator
    9.
    发明授权
    Spread spectrum clock signal generator 有权
    扩频时钟信号发生器

    公开(公告)号:US08259774B2

    公开(公告)日:2012-09-04

    申请号:US12478166

    申请日:2009-06-04

    IPC分类号: H04B1/00 H04L7/00

    CPC分类号: H04B15/04

    摘要: A spread spectrum clock signal generator for spreading an input clock signal into an output clock signal includes a clock signal delay chain for delaying the input clock signal into a delay clock signal group having a plurality of delay clock signals, a modulation controller for outputting a counter clock signal control signal, a clock signal selection circuit for selecting, from the delay clock signal group, a modulation clock signal group having a plurality of modulation clock signals, a programmable counter for generating a counting value according to a counter clock signal, and a clock signal output unit for combining the modulation clock signals into the output clock signal according to the counting value, and further generating the counter clock signal, outputted to the programmable counter, according to the counter clock signal control signal.

    摘要翻译: 用于将输入时钟信号扩展为输出时钟信号的扩频时钟信号发生器包括用于将输入时钟信号延迟为具有多个延迟时钟信号的延迟时钟信号组的时钟信号延迟链,用于输出计数器的调制控制器 时钟信号控制信号,用于从延迟时钟信号组中选择具有多个调制时钟信号的调制时钟信号组的时钟信号选择电路,用于根据计数器时钟信号产生计数值的可编程计数器,以及 时钟信号输出单元,用于根据计数值将调制时钟信号组合成输出时钟信号,并根据计数器时钟信号控制信号进一步产生输出到可编程计数器的计数器时钟信号。

    SOURCE DRIVING APPARATUS AND DRIVING METHOD THEREOF
    10.
    发明申请
    SOURCE DRIVING APPARATUS AND DRIVING METHOD THEREOF 审中-公开
    来源驱动装置及其驱动方法

    公开(公告)号:US20100026671A1

    公开(公告)日:2010-02-04

    申请号:US12355838

    申请日:2009-01-19

    申请人: Shao-Ping Hung

    发明人: Shao-Ping Hung

    IPC分类号: G09G5/00

    摘要: A source driving apparatus and a driving method thereof are provided. The source driving apparatus comprises an encoder and a source driver. The encoder encodes a video data with n bits to the encoded data according to encoding rules, such that the bit change in two adjacent grays is less than n. The source driver outputs a pixel voltage corresponding to the video data according to the encoded data.

    摘要翻译: 提供了一种源驱动装置及其驱动方法。 源驱动装置包括编码器和源驱动器。 编码器根据编码规则将具有n位的视频数据编码到编码数据,使得两个相邻灰度中的位改变小于n。 源驱动器根据编码数据输出与视频数据相对应的像素电压。