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190 条记录 (耗时 0.024 秒)

    Apparatus and method of updating filter tap coefficients of an equalizer
    81.
    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。

    Information storage medium and method and apparatus for recording data on and/or reading data from the same
    87.
    发明授权
    Information storage medium and method and apparatus for recording data on and/or reading data from the same 失效
    信息存储介质以及用于在其上记录数据和/或从其读取数据的方法和装置

    公开(公告)号：US07333417B2

    公开(公告)日：2008-02-19

    申请号：US10929765

    申请日：2004-08-31

    申请人： Kyung-geun Lee ,  Jae-seong Shim ,  Chang-min Park

    发明人： Kyung-geun Lee ,  Jae-seong Shim ,  Chang-min Park

    IPC分类号： G11B7/24

    CPC分类号： G11B7/00736

    摘要： An information storage medium, and a method and apparatus for recording data on and/or reading data from the same. In the information storage medium, reproduction-dedicated data is recorded as a wobble in a lead-in area, a user data area, or a lead-out area, or any combination thereof, and the reproduction-dedicated data is copied and recorded in the lead-in area and/or the lead-out area.

    摘要翻译： 一种信息存储介质，以及用于在其上记录数据和/或从其读取数据的方法和装置。 在信息存储介质中，再现专用数据作为摆动记录在导入区，用户数据区或导出区或其组合中，并且将再现专用数据复制并记录在 导入区和/或导出区。

    Apparatus for reproducing data from optical storage medium using multiple detector
    88.
    发明授权
    Apparatus for reproducing data from optical storage medium using multiple detector 有权
    用于使用多个检测器从光学存储介质再现数据的装置

    公开(公告)号：US07321531B2

    公开(公告)日：2008-01-22

    申请号：US10441087

    申请日：2003-05-20

    申请人： Hyun-soo Park ,  Jae-seong Shim

    发明人： Hyun-soo Park ,  Jae-seong Shim

    IPC分类号： G11B5/09

    CPC分类号： G11B20/10009 ,  G11B7/005 ,  G11B20/10037 ,  G11B20/10046 ,  G11B20/10203 ,  G11B20/10296 ,  G11B20/10481 ,  G11B2007/0006 ,  G11B2020/10888 ,  G11B2020/1457

    摘要： An apparatus includes a multiple detecting unit having n detectors, and a controller which selects one of the n detectors and controls the selected detector to output a binary signal. In the apparatus, a plurality of detectors are used to detect a signal read from an optical storage medium, and the optimum detector is selected in consideration of a quality of the signal and detection conditions, thereby increasing the efficiency of a signal reproduction. The apparatus can selectively compensate for disturbance of a signal where data from the optical storage medium is reproduced. The apparatus may control a run length of the signal to be 3T.

    摘要翻译： 一种装置包括具有n个检测器的多重检测单元，以及选择n个检测器之一并控制所选检测器输出二进制信号的控制器。 在该装置中，使用多个检测器来检测从光存储介质读取的信号，并且考虑到信号的质量和检测条件来选择最佳检测器，从而提高信号再现的效率。 该装置可以选择性地补偿来自光存储介质的数据被再现的信号的干扰。 该装置可以控制信号的游程长度为3T。

    Error correction coding apparatus and method
    89.
    发明授权
    Error correction coding apparatus and method 失效
    纠错编码装置及方法

    公开(公告)号：US07188281B2

    公开(公告)日：2007-03-06

    申请号：US10680419

    申请日：2003-10-08

    申请人： Ki-hyun Kim ,  In-sik Park ,  Jae-seong Shim ,  Sung-hyu Han

    发明人： Ki-hyun Kim ,  In-sik Park ,  Jae-seong Shim ,  Sung-hyu Han

    IPC分类号： G06K5/04 ,  G11B20/20 ,  G11B5/00 ,  G06F11/00 ,  H03M13/00

    CPC分类号： H03M13/11

    摘要： An error correction coding apparatus includes a parity check matrix generation unit which generates a parity check matrix having a number of elements having a value of 1 in each row thereof, having a predetermined number of elements having a value of 1 in each column thereof, and having the other elements having a value of 0; a parity check matrix adjustment unit which receives the parity check matrix from the parity check matrix generation unit, searches the parity check matrix for a cycle forming group of four elements positioned at respective vertexes of a rectangle and having a value of 1, and when there is at least one cycle forming group, replaces the value of 1 of at least one element of the cycle forming group with the value 0 of another element, to output a adjusted parity check matrix without a cycle forming group therein; and an LDPC coding unit which receives the adjusted parity check matrix from the parity check matrix adjustment unit and receives an m-bit message word to perform LDPC coding.

    摘要翻译： 纠错编码装置包括奇偶校验矩阵生成单元，其生成具有每行中具有值1的元素数目的数量的奇数校验矩阵，具有每列中具有值1的预定数量的元素，以及 具有值为0的其他元素; 奇偶校验矩阵调整单元，其从奇偶校验矩阵生成单元接收奇偶校验矩阵，在奇偶校验矩阵中搜索位于矩形的各个顶点的值为1的四个元素的周期形成组，并且当存在 是至少一个循环形成组，将循环形成组的至少一个元素的值1替换为另一元素的值0，以输出其中没有循环形成组的调整奇偶校验矩阵; 以及LDPC编码单元，其从奇偶校验矩阵调整单元接收经调整的奇偶校验矩阵，并接收m位消息字以执行LDPC编码。

    Optical disc having small access units and address information modulation method therefor
    90.
    发明授权
    Optical disc having small access units and address information modulation method therefor 有权
    具有小存取单元的光盘及其地址信息调制方法

    公开(公告)号：US07167437B2

    公开(公告)日：2007-01-23

    申请号：US10418140

    申请日：2003-04-18

    申请人： Jae-seong Shim ,  Kyung-geun Lee ,  In-sik Park

    发明人： Jae-seong Shim ,  Kyung-geun Lee ,  In-sik Park

    IPC分类号： G11B7/24

    CPC分类号： G11B20/1217 ,  G11B7/00736 ,  G11B7/24082 ,  G11B20/10 ,  G11B20/1403 ,  G11B27/19 ,  G11B27/24 ,  G11B2020/1239 ,  G11B2020/1267 ,  G11B2020/1288 ,  G11B2220/216 ,  G11B2220/2541 ,  G11B2220/2579

    摘要： An address information modulation method includes using a first characteristic of a first modulation method and a second characteristic of a second modulation method to modulate address information and/or additional information. Accordingly, a data amount of information, to access a disc, in a predetermined space of the disc is increased, and the modulated information is formed in a form of a wobble signal in a track. Here, the first characteristic of the first modulation method can be physical location information of an MSK-modulated signal, and the second characteristic of the second modulation method can be sign information of a second harmonic wave obtained by an HMW modulation, which synthesizes a cosine function of a basic frequency of a wobble signal with a sine function having a frequency that is a multiple of the basic frequency of the wobble signal. Therefore, where the address information is modulated, a plurality of information bits are loaded on a predetermined number of wobble or carrier signals to increase the amount of the information in the predetermined space, such that a physical length of the information needed in accessing the disc and reading the additional information thereof is shortened. Also, where a defect occurs, the resulting loss can be reduced such that addressing specifications for a small-sized high density disc can be satisfied.

    摘要翻译： 地址信息调制方法包括使用第一调制方法的第一特性和第二调制方法的第二特性来调制地址信息和/或附加信息。 因此，在盘的预定空间中访问盘的数据量增加，并且调制信息以轨迹中的摆动信号的形式形成。 这里，第一调制方式的第一特征可以是MSK调制信号的物理位置信息，第二调制方式的第二特性可以是通过HMW调制获得的二次谐波的符号信息，其合成余弦 具有频率为摆动信号的基本频率倍数的正弦函数的摆动信号的基本频率的函数。 因此，在地址信息被调制的情况下，多个信息比特被加载在预定数量的摆动或载波信号上以增加预定空间中的信息量，使得访问盘所需的信息的物理长度 并且读取其附加信息被缩短。 此外，在发生缺陷的情况下，可以减少所产生的损耗，从而可以满足小尺寸高密度盘的寻址规范。