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    Apparatus and method for measuring signal quality
    1.
    发明授权
    Apparatus and method for measuring signal quality 有权
    用于测量信号质量的装置和方法

    公开(公告)号：US07952974B2

    公开(公告)日：2011-05-31

    申请号：US12833793

    申请日：2010-07-09

    申请人： Hyun-soo Park ,  Jae-seong Shim ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu ,  Eing-seob Cho

    发明人： Hyun-soo Park ,  Jae-seong Shim ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu ,  Eing-seob Cho

    IPC分类号： G11B7/00

    CPC分类号： G11B20/10009 ,  G11B20/10203 ,  G11B20/10296 ,  G11B20/10333

    摘要： An apparatus and method for measuring the quality of a signal on an optical disc based on level information of a viterbi decoder are provided. The signal quality measuring apparatus includes: a binary unit that generates binary signals from input RF signals; a channel identifier that receives the input RF signals and the binary signals output from the binary unit and outputs reference level values corresponding to the binary signals; and an information calculator that receives the reference level values and detects a signal quality value.

    摘要翻译： 提供了一种基于维特比解码器的电平信息来测量光盘上的信号质量的装置和方法。 信号质量测量装置包括：二进制单元，其从输入的RF信号产生二进制信号; 接收从二进制单元输出的输入RF信号和二进制信号并输出​​对应于二进制信号的参考电平值的信道标识符; 以及信息计算器，其接收参考电平值并检测信号质量值。

    Apparatus and method for detecting binary data
    2.
    发明授权
    Apparatus and method for detecting binary data 有权
    二进制数据检测装置及方法

    公开(公告)号：US07356097B2

    公开(公告)日：2008-04-08

    申请号：US10870445

    申请日：2004-06-18

    申请人： Hyun-soo Park ,  Jae-seong Shim ,  Jae-wook Lee ,  Eing-seob Cho ,  Eun-jin Ryu

    发明人： Hyun-soo Park ,  Jae-seong Shim ,  Jae-wook Lee ,  Eing-seob Cho ,  Eun-jin Ryu

    IPC分类号： H03D1/00

    CPC分类号： G11B20/10148 ,  G11B20/10009 ,  G11B20/10055 ,  G11B20/10101 ,  G11B20/10111 ,  G11B20/10296

    摘要： A method and apparatus detecting binary data, the apparatus includes an analog-to-digital (AD) converter converting the input analog signal into a digital signal; at least one binarization unit converting the digital signal into binary data; a viterbi decoder performing viterbi decoding to detect binary data from the digital signal; and a level detector receiving the digital signal, receiving at least two binary data from one of the viterbi decoder and the at least one binarization unit, and detecting and outputting a level value for the viterbi decoding from the digital signal when a number of the at least two binary data, which correspond to each other on a time axis and have the same values, is equal to or greater than a predetermined number. Accordingly, it is possible to more precisely detect binary data from an analog signal.

    摘要翻译： 一种检测二进制数据的方法和装置，该装置包括将输入的模拟信号转换为数字信号的模数（AD）转换器; 至少一个二进制化单元将数字信号转换为二进制数据; 维特比解码器执行维特比解码以从数字信号检测二进制数据; 以及电平检测器，接收数字信号，从维特比解码器和至少一个二进制化单元之一接收至少两个二进制数据，并且当数字信号的数量从数字信号中检测并输出维特比解码的电平值时 在时间轴上彼此对应并且具有相同值的至少两个二进制数据等于或大于预定数量。 因此，可以从模拟信号更精确地检测二进制数据。

    Method and apparatus for measuring signal quality using eye pattern
    3.
    发明授权
    Method and apparatus for measuring signal quality using eye pattern 有权
    使用眼图测量信号质量的方法和装置

    公开(公告)号：US07324903B2

    公开(公告)日：2008-01-29

    申请号：US10919531

    申请日：2004-08-17

    申请人： Eing-seob Cho ,  Jae-song Shim ,  Hyun-soo Park ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu

    发明人： Eing-seob Cho ,  Jae-song Shim ,  Hyun-soo Park ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu

    IPC分类号： G01R13/00 ,  G06F11/30

    CPC分类号： H04L1/205

    摘要： A signal quality measuring method and apparatus in which a quality of a signal detected from an RF signal read out from a disk or a communications channel is measured by using eye pattern signals of the detected RF signals. Eye pattern signals representing time change of a waveform of the detected signal are generated and a signal quality value is generated based on an eye depth and/or an eye width measured from the eye pattern signals. A histogram of the eye pattern signals is used to identify a plurality of main level values which are used as a reference value in measuring the signal quality. Accordingly, signal characteristics in a high-density storage medium system or communication system may be accurately represented.

    摘要翻译： 一种信号质量测量方法和装置，其中通过使用检测到的RF信号的眼图信号测量从从盘或通信信道读出的RF信号中检测到的信号的质量。 产生表示检测信号的波形的时间变化的眼图信号，并且基于从眼图信号测量的眼睛深度和/或眼睛宽度来生成信号质量值。 眼图信号的直方图用于识别在测量信号质量时用作参考值的多个主电平值。 因此，可以精确地表示高密度存储介质系统或通信系统中的信号特性。

    Asymmetric error correction device and method thereof, and optical disc reproducing device therewith
    4.
    发明申请
    Asymmetric error correction device and method thereof, and optical disc reproducing device therewith 有权
    非对称误差校正装置及其方法和光盘再现装置

    公开(公告)号：US20060182002A1

    公开(公告)日：2006-08-17

    申请号：US11353959

    申请日：2006-02-15

    申请人： Eun-jin Ryu ,  Hyun-soo Park

    发明人： Eun-jin Ryu ,  Hyun-soo Park

    IPC分类号： G11B7/00

    CPC分类号： G11B20/1426 ,  G11B20/10 ,  G11B20/10009 ,  G11B20/10037 ,  G11B20/10046 ,  G11B20/10425 ,  G11B20/1833 ,  G11B2020/1457 ,  G11B2220/2575

    摘要： An asymmetric error correction device includes an analog-to-digital (A/D) converter sampling analog radio frequency (RF) signals reproduced from an optical disc with a sampling period, converting the same into the digital sampling signals, and outputting the same; a signal detector for detecting 4T sampling signals varying in polarity thereof every four times the sampling period among the digital sampling signals; an operator selecting and adding a signal among the 4T sampling signals to operate an asymmetric error value; a counter cumulatively counting the asymmetric error value operated in the operator; and a corrector correcting a signal level of the digital sampling signal outputted from the A/D converter if the counted value counted by the counter is out of a predetermined critical range. The asymmetric error is precisely corrected even in a signal part in which the asymmetric error is minutely generated.

    摘要翻译： 非对称误差校正装置包括从采样周期从光盘再现的模拟射频（RF）信号的模数（A / D）转换器，将其转换为数字采样信号并输出​​的数字采样信号; 信号检测器，用于每四倍于数字采样信号中的采样周期检测其极性变化的4T个采样信号; 操作者在4T采样信号中选择和添加信号以操作不对称误差值; 计数器累积计算操作者操作的不对称误差值; 以及校正器，如果由计数器计数的计数值超出预定的临界范围，则校正从A / D转换器输出的数字采样信号的信号电平。 即使在其中微小地产生不对称误差的信号部分中也精确地校正了非对称误差。

    Apparatus and method for measuring signal quality
    5.
    发明申请
    Apparatus and method for measuring signal quality 有权
    用于测量信号质量的装置和方法

    公开(公告)号：US20050083822A1

    公开(公告)日：2005-04-21

    申请号：US10931254

    申请日：2004-09-01

    申请人： Hyun-soo Park ,  Jae-seong Shim ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu ,  Eing-seob Cho

    发明人： Hyun-soo Park ,  Jae-seong Shim ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu ,  Eing-seob Cho

    IPC分类号： G11B20/10 ,  G11B3/00

    CPC分类号： G11B20/10009 ,  G11B20/10203 ,  G11B20/10296 ,  G11B20/10333

    摘要： An apparatus and method for measuring the quality of a signal on an optical disc based on level information of a viterbi decoder are provided. The signal quality measuring apparatus includes: a binary unit that generates binary signals from input RF signals; a channel identifier that receives the input RF signals and the binary signals output from the binary unit and outputs reference level values corresponding to the binary signals; and an information calculator that receives the reference level values and detects a signal quality value.

    摘要翻译： 提供了一种基于维特比解码器的电平信息来测量光盘上的信号质量的装置和方法。 信号质量测量装置包括：二进制单元，其从输入的RF信号产生二进制信号; 接收从二进制单元输出的输入RF信号和二进制信号并输出​​对应于二进制信号的参考电平值的信道标识符; 以及信息计算器，其接收参考电平值并检测信号质量值。

    Apparatus and method for detecting binary data
    7.
    发明申请
    Apparatus and method for detecting binary data 有权
    二进制数据检测装置及方法

    公开(公告)号：US20050025261A1

    公开(公告)日：2005-02-03

    申请号：US10870445

    申请日：2004-06-18

    申请人： Hyun-soo Park ,  Jae-seong Shim ,  Jae-wook Lee ,  Eing-seob Cho ,  Eun-jin Ryu

    发明人： Hyun-soo Park ,  Jae-seong Shim ,  Jae-wook Lee ,  Eing-seob Cho ,  Eun-jin Ryu

    IPC分类号： G11B20/10 ,  G11B20/00 ,  G11B20/18 ,  H03M13/41 ,  H04B1/38

    CPC分类号： G11B20/10148 ,  G11B20/10009 ,  G11B20/10055 ,  G11B20/10101 ,  G11B20/10111 ,  G11B20/10296

    摘要： A method and apparatus detecting binary data, the apparatus includes an analog-to-digital (AD) converter converting the input analog signal into a digital signal; at least one binarization unit converting the digital signal into binary data; a viterbi decoder performing viterbi decoding to detect binary data from the digital signal; and a level detector receiving the digital signal, receiving at least two binary data from one of the viterbi decoder and the at least one binarization unit, and detecting and outputting a level value for the viterbi decoding from the digital signal when a number of the at least two binary data, which correspond to each other on a time axis and have the same values, is equal to or greater than a predetermined number. Accordingly, it is possible to more precisely detect binary data from an analog signal.

    摘要翻译： 一种检测二进制数据的方法和装置，该装置包括将输入的模拟信号转换为数字信号的模数（AD）转换器; 至少一个二进制化单元将数字信号转换为二进制数据; 维特比解码器执行维特比解码以从数字信号检测二进制数据; 以及电平检测器，接收数字信号，从维特比解码器和至少一个二进制化单元之一接收至少两个二进制数据，并且当数字信号的数量从数字信号中检测并输出维特比解码的电平值时 在时间轴上彼此对应并且具有相同值的至少两个二进制数据等于或大于预定数量。 因此，可以从模拟信号更精确地检测二进制数据。

    Method and apparatus for determining priorities in direct memory access device having multiple direct memory access request blocks
    8.
    发明授权
    Method and apparatus for determining priorities in direct memory access device having multiple direct memory access request blocks 有权
    用于确定具有多个直接存储器访问请求块的直接存储器访问设备中的优先级的方法和装置

    公开(公告)号：US08065447B2

    公开(公告)日：2011-11-22

    申请号：US11896453

    申请日：2007-08-31

    申请人： Eun-jin Ryu ,  Dong-soo Kang ,  Jae-young Lim

    发明人： Eun-jin Ryu ,  Dong-soo Kang ,  Jae-young Lim

    IPC分类号： G06F3/00

    CPC分类号： G06F13/28

    摘要： A priority determining method and apparatus can reduce a total waiting time of DMA request blocks by granting priority to each of Direct Memory Access (DMA) request blocks transmitting a DMA request signal, based on Data Transfer Amounts (DTAs) of the DMA request blocks and Arrival Times (ATs) of the DMA request signals, counting the number of priority changes of each of DMA request blocks whose priority is changed in the priority granting process, and if a DMA request signal is received from a new DMA request block, determining priorities of the DMA request blocks based on the counted the number of priority changes.

    摘要翻译： 优先级确定方法和装置可以基于DMA请求块的数据传送量（DTA），通过向发送DMA请求信号的每个直接存储器访问（DMA）请求块授予优先级，从而减少DMA请求块的等待时间， 对DMA请求信号的到达时间（AT）进行计数，对在优先授权处理中优先级改变的每个DMA请求块的优先级改变数进行计数，并且如果从新的DMA请求块接收到DMA请求信号，则确定优先级 的DMA请求块基于优先级更改次数的计数。

    APPARATUS AND METHOD FOR MEASURING SIGNAL QUALITY
    9.
    发明申请
    APPARATUS AND METHOD FOR MEASURING SIGNAL QUALITY 有权
    用于测量信号质量的装置和方法

    公开(公告)号：US20100278027A1

    公开(公告)日：2010-11-04

    申请号：US12833793

    申请日：2010-07-09

    申请人： Hyun-soo PARK ,  Jae-seong Shim ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu ,  Eing-seob Cho

    发明人： Hyun-soo PARK ,  Jae-seong Shim ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu ,  Eing-seob Cho

    IPC分类号： H04B17/00 ,  G11B7/00 ,  G11B27/36

    CPC分类号： G11B20/10009 ,  G11B20/10203 ,  G11B20/10296 ,  G11B20/10333

    摘要： An apparatus and method for measuring the quality of a signal on an optical disc based on level information of a viterbi decoder are provided. The signal quality measuring apparatus includes: a binary unit that generates binary signals from input RF signals; a channel identifier that receives the input RF signals and the binary signals output from the binary unit and outputs reference level values corresponding to the binary signals; and an information calculator that receives the reference level values and detects a signal quality value.

    摘要翻译： 提供了一种基于维特比解码器的电平信息来测量光盘上的信号质量的装置和方法。 信号质量测量装置包括：二进制单元，其从输入的RF信号产生二进制信号; 接收从二进制单元输出的输入RF信号和二进制信号并输出​​对应于二进制信号的参考电平值的信道标识符; 以及信息计算器，其接收参考电平值并检测信号质量值。