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    APPARATUS AND METHOD FOR MEASURING SIGNAL QUALITY
    43.
    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。

    Error correction method for high density disc
    45.
    发明授权
    Error correction method for high density disc 失效
    高密度光盘纠错方法

    公开(公告)号：US07739582B2

    公开(公告)日：2010-06-15

    申请号：US11429340

    申请日：2006-05-08

    申请人： Jae-seong Shim ,  Myoung-june Kim ,  In-sik Park

    发明人： Jae-seong Shim ,  Myoung-june Kim ,  In-sik Park

    IPC分类号： G06F11/00 ,  H03M13/00

    CPC分类号： H03M13/1515 ,  G11B20/10527 ,  G11B20/1217 ,  G11B20/18 ,  G11B20/1833 ,  G11B27/00 ,  G11B2220/2562 ,  G11B2220/2579 ,  H03M13/15 ,  H03M13/27 ,  H03M13/2703 ,  H03M13/29 ,  H03M13/2903 ,  H03M13/2906 ,  H03M13/2909 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071

    摘要： An error correction method for optical discs, and more particularly, an error correction method appropriate to high density discs is provided. The error correction method adds inner parity and outer parity to an error correction block of size n byte x m x o. The method comprises the steps of obtaining a plurality of inner parity blocks (PI blocks) by segmenting the error correction block in the inner parity (PI) direction into x segments; generating e-byte PI for each of the plurality of PI blocks generated by segmenting, and adding the e-bytes to the PI blocks PIs to the PI direction; and generating f-byte outer parity (PO) in the PO direction of the error correction block, and adding the POs to the PO direction. The error correction method enhances error correction capability while maintaining a redundancy of parity signal on a level similar to conventional DVDs.

    摘要翻译： 提供了一种光盘的纠错方法，特别是适用于高密度盘的纠错方法。 误差校正方法将内奇偶校验和外奇偶校验添加到大小为n字节×m×o的纠错块。 该方法包括以下步骤：通过将内部奇偶校验（PI）方向上的纠错块分割成x段来获得多个内部奇偶校验块（PI块）; 对通过分割生成的多个PI块中的每一个产生e字节PI，并将e字节添加到PI块PI到PI方向; 以及在纠错块的PO方向上产生f字节外部奇偶校验（PO），并将PO添加到PO方向。 误差校正方法提高了纠错能力，同时保持奇偶校验信号的冗余度与常规DVD类似。

    Error correction method for high density disc
    47.
    发明授权
    Error correction method for high density disc 有权
    高密度光盘纠错方法

    公开(公告)号：US07383491B2

    公开(公告)日：2008-06-03

    申请号：US11429307

    申请日：2006-05-08

    申请人： Jae-seong Shim ,  Myoung-june Kim ,  In-sik Park

    发明人： Jae-seong Shim ,  Myoung-june Kim ,  In-sik Park

    IPC分类号： G06F11/00 ,  H03M13/00

    CPC分类号： H03M13/1515 ,  G11B20/10527 ,  G11B20/1217 ,  G11B20/18 ,  G11B20/1833 ,  G11B27/00 ,  G11B2220/2562 ,  G11B2220/2579 ,  H03M13/15 ,  H03M13/27 ,  H03M13/2703 ,  H03M13/29 ,  H03M13/2903 ,  H03M13/2906 ,  H03M13/2909 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071

    摘要： An error correction method for optical discs, and more particularly, an error correction method appropriate to high density discs is provided. The error correction method adds inner parity and outer parity to an error correction block of size n byte x m x o. The method comprises the steps of obtaining a plurality of inner parity blocks (PI blocks) by segmenting the error correction block in the inner parity (PI) direction into x segments; generating e-byte PI for each of the plurality of PI blocks generated by segmenting, and adding the e-bytes to the PI blocks PIs to the PI direction; and generating f-byte outer parity (PO) in the PO direction of the error correction block, and adding the POs to the PO direction. The error correction method enhances error correction capability while maintaining a redundancy of parity signal on a level similar to conventional DVDs.

    摘要翻译： 提供了一种光盘的纠错方法，特别是适用于高密度盘的纠错方法。 误差校正方法将内奇偶校验和外奇偶校验添加到大小为n字节×m×o的纠错块。 该方法包括以下步骤：通过将内部奇偶校验（PI）方向上的纠错块分割成x段来获得多个内部奇偶校验块（PI块）; 对通过分割生成的多个PI块中的每一个产生e字节PI，并将e字节添加到PI块PI到PI方向; 以及在纠错块的PO方向上产生f字节外部奇偶校验（PO），并将PO添加到PO方向。 误差校正方法提高了纠错能力，同时保持奇偶校验信号的冗余度与常规DVD类似。

    DATA MODULATING METHOD AND APPARATUS, DATA DEMODULATING METHOD AND APPARATUS, AND CODE ARRANGING METHOD
    50.
    发明申请
    DATA MODULATING METHOD AND APPARATUS, DATA DEMODULATING METHOD AND APPARATUS, AND CODE ARRANGING METHOD 有权
    数据调制方法与装置，数据调度方法与装置及代码安排方法

    公开(公告)号：US20080068232A1

    公开(公告)日：2008-03-20

    申请号：US11944084

    申请日：2007-11-21

    申请人： Jae-seong Shim ,  Jin-han Kim ,  Kiu-hae Jung

    发明人： Jae-seong Shim ,  Jin-han Kim ,  Kiu-hae Jung

    IPC分类号： H03M7/00

    CPC分类号： G11B20/1426 ,  H03M5/145

    摘要： In a data demodulating method and apparatus, and a code arranging method, a multiplexer multiplexes an input data stream divided by a predetermined length into a plurality of types of pseudo-random data streams using multiplexed information of predetermined bits by applying a predetermined multiplexing method to each of the pseudo-random data streams. An encoder RLL-modulates the plurality of types of pseudo-random data streams to create a modulated code stream including a minimum of DC components. The multiplexer generates the random data streams by inconsecutively scrambling the input data stream using the multiplexed information. The encoder weak DC-free RLL-modulates each of the multiplexed data streams without using a DC control sub code conversion table to which additional bits are added and provides a code stream including a minimum of DC components among multiplexed, RLL-modulated code streams.

    摘要翻译： 在数据解调方法和装置以及代码排列方法中，通过将预定的多路复用方式应用到预定的多路复用方式，通过使用预定比特的多路复用信息，将预定长度分割的输入数据流复用到多种类型的伪随机数据流中 每个伪随机数据流。 编码器RLL调制多种类型的伪随机数据流以创建包括最小DC分量的调制码流。 复用器通过使用多路复用信息不断地对输入数据流进行加扰来产生随机数据流。 编码器弱无DC的RLL调制每个复用的数据流，而不使用添加了附加位的DC控制子码转换表，并且在多路复用的RLL调制码流之间提供包括最小DC分量的码流。