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    Apparatus and method for detecting binary data
    14.
    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。

    Apparatus and method for detecting binary data
    15.
    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 for determining characteristics of signal and apparatus using the same
    16.
    发明申请
    Method for determining characteristics of signal and apparatus using the same 有权
    用于确定信号和使用其的装置的特性的方法

    公开(公告)号：US20050128918A1

    公开(公告)日：2005-06-16

    申请号：US10979815

    申请日：2004-11-03

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

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

    IPC分类号： G11B3/00 ,  G11B20/10

    CPC分类号： G11B20/10009 ,  G11B2020/10555

    摘要： A method of determining characteristics of a signal and an apparatus using the method. The apparatus for determining characteristics of a signal includes: a level detector receiving sample values of a radio frequency (RF) signal and binary data obtained by binarizing the RF signal, generating selection signals based on the binary data, classifying each of the sample values of the RF signal into one of a plurality of levels using the selection signals, and outputting average values of sample values of each level; and a signal characteristics determiner determining a characteristics value that indicates the characteristics of the RF signal using the average values of the sample values belonging to each level.

    摘要翻译： 一种确定信号特性的方法和使用该方法的装置。 用于确定信号特性的装置包括：电平检测器，其接收射频（RF）信号的采样值和通过二值化RF信号获得的二进制数据，基于二进制数据产生选择信号，将每个样本值 使用所述选择信号将所述RF信号变换成多个电平之一，并输出各电平的采样值的平均值; 以及信号特性确定器，其使用属于每个级别的样本值的平均值来确定指示RF信号的特性的特性值。

    Method and apparatus for measuring signal quality using eye pattern
    17.
    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。

    Apparatus and method of updating filter tap coefficients of an equalizer
    18.
    发明授权
    Apparatus and method of updating filter tap coefficients of an equalizer 失效
    更新均衡器滤波器抽头系数的装置和方法

    公开(公告)号：US07394735B2

    公开(公告)日：2008-07-01

    申请号：US10429954

    申请日：2003-05-06

    申请人： Jae-seong Shim ,  Hyun-soo Park ,  Jae-wook Lee ,  Jung-hyun Lee

    发明人： Jae-seong Shim ,  Hyun-soo Park ,  Jae-wook Lee ,  Jung-hyun Lee

    IPC分类号： G11B7/004

    CPC分类号： G11B20/10009 ,  G11B20/18

    摘要： An apparatus, a method, and a computer readable recording medium thereof to update filter tap coefficients of an equalizer include a defect signal detection unit and a coefficient updating unit. The defect signal detection unit receives a sampled input signal reflected from an optical disc and/or a track jump signal, detects whether the input signal and/or the track jump signal are defective, and outputs an update stop signal indicative thereof. The coefficient updating unit stops the updating of the filter tap coefficients in response to the update stop signal and outputs current filter tap coefficients.

    摘要翻译： 用于更新均衡器的滤波器抽头系数的装置，方法和计算机可读记录介质包括缺陷信号检测单元和系数更新单元。 缺陷信号检测单元接收从光盘反射的采样输入信号和/或轨道跳转信号，检测输入信号和/或轨道跳转信号是否有缺陷，并输出指示其的更新停止信号。 系数更新单元响应于更新停止信号停止更新滤波器抽头系数，并输出当前滤波器抽头系数。

    Equalizer for optical recording/reproducing apparatus and equalizing method thereof
    19.
    发明授权
    Equalizer for optical recording/reproducing apparatus and equalizing method thereof 有权
    用于光学记录/再现装置的均衡器及其均衡方法

    公开(公告)号：US07120104B2

    公开(公告)日：2006-10-10

    申请号：US10657124

    申请日：2003-09-09

    申请人： Eing-seob Cho ,  Jae-wook Lee

    发明人： Eing-seob Cho ,  Jae-wook Lee

    IPC分类号： G11B7/00

    CPC分类号： G11B20/10046 ,  G11B20/10009

    摘要： An equalizer and an equalizing method of optical recording/reproducing apparatus capable of enhancing equalizing performance and equalizing speed are disclosed. The equalizer includes a FF unit having a feedforward filter for removing pre-cursor from inter-symbol interference of input signal, a FB unit having a feedback filter for predicting post-cursor of the inter-symbol interference and outputting it, a first adder and a second adder for adding the signal from the FF unit and the signal from the FB unit, to remove the inter-symbol interference, a slicer for deciding the level of the signal from the first adder to be a predetermined level and feeding back the level-decided signal to the FB unit, and a signal detection unit for outputting the signal having the inter-symbol interference removed by the second adder as a predetermined signal using at least one of a trellis structure method and a tree structure method.

    摘要翻译： 公开了能够提高均衡性能和均衡速度的光记录/再现装置的均衡器和均衡方法。 均衡器包括具有前馈滤波器的FF单元，用于从输入信号的符号间干扰中去除前置信号; FB单元，具有用于预测符号间干扰后序的输出的反馈滤波器，第一加法器和 第二加法器，用于将来自FF单元的信号和来自FB单元的信号相加，以消除符号间干扰;切片器，用于将来自第一加法器的信号的电平决定为预定电平，并将电平反馈 信号检测单元，用于使用网格结构方法和树结构方法中的至少一种，将具有由第二加法器去除的符号间干扰的信号作为预定信号输出。

    Defect signal detecting apparatus for optical recording/reproducing apparatus and defect signal detecting method thereof
    20.
    发明授权
    Defect signal detecting apparatus for optical recording/reproducing apparatus and defect signal detecting method thereof 有权
    用于光学记录/再现装置的缺陷信号检测装置及其缺陷信号检测方法

    公开(公告)号：US07248547B2

    公开(公告)日：2007-07-24

    申请号：US10680154

    申请日：2003-10-08

    申请人： Eun-jin Ryu ,  Jae-wook Lee

    发明人： Eun-jin Ryu ,  Jae-wook Lee

    IPC分类号： G11B7/00

    CPC分类号： G11B20/18 ,  G11B7/0948

    摘要： A defect signal detecting apparatus for an optical recording/reproducing apparatus that includes a maximum value detecting unit for detecting a highest amplitude among signals input during a maximum value detection period as a maximum value, a minimum value detecting unit for detecting a lowest amplitude among signals input during a minimum value detection period as a minimum value, an asymmetry detecting unit for calculating an amount δ of asymmetry by detecting a maximum value ILmax and a minimum value ILmin of a signal IL having a maximum periodicity among the signal input, and a maximum value ISmax and a minimum value ISmin of a signal IS having a minimum periodicity among the signal input, and a defect determining unit for determining whether there is a defect in the signal input, using the maximum value, the minimum value and the amount δ of asymmetry.

    摘要翻译： 一种用于光学记录/再现装置的缺陷信号检测装置，包括用于检测在最大值检测周期期间输入的信号中的最大幅度的最大值检测单元作为最大值;最小值检测单元，用于检测信号中的最低振幅 在最小值检测周期期间输入为最小值;不对称检测单元，用于通过检测最大值I最大值最大值和最小值I来计算不对称量的增量量 在信号输入中具有最大周期性的信号I L L 的最小值I SUB 在信号输入端口中具有最小周期的信号I S S S S S的最小值最小值和最小值最小值 以及缺陷确定单元，用于使用所述最大值，所述最小值和所述不对称的量值δ来确定所述信号输入中是否存在缺陷。