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    Data reproduction apparatus for optical disc system
    1.
    发明授权
    Data reproduction apparatus for optical disc system 失效
    光盘系统的数据再现装置

    公开(公告)号：US06307822B1

    公开(公告)日：2001-10-23

    申请号：US09443155

    申请日：1999-11-18

    申请人： Jae-Seong Shim ,  Yong-Kwang Won ,  Hyun-Soo Park ,  Il-Kwan Kim

    发明人： Jae-Seong Shim ,  Yong-Kwang Won ,  Hyun-Soo Park ,  Il-Kwan Kim

    IPC分类号： G11B509

    CPC分类号： G11B20/10009 ,  G11B20/1426

    摘要： A data reproduction apparatus for an optical disc system is provided. Included is an analog-to-digital converter (ADC) for sampling an input RF signal and outputting the sampled result, an adder for adding the sampled signal and an asymmetry correction signal. The added signal is output. A blank/defect detector is provided for generating a blank detection signal if no change in data is detected from the added signal during a predetermined interval of time. A correction signal generator is provided for calculating a digital sum value (DSV) from the received added signal, generating an asymmetry correction signal based on the calculated DSV, and outputting the generated asymmetry correction signal to the adder. A waveform equalizer is provided for waveform-equalizing the added signal. A decoder is provided for decoding the waveform-equalized signal and outputting the result. The correction signal corrector temporarily stops a DSV calculation operation with respect to the interval of the corresponding added signal, if the blank detection signal is output. Thus, an asymmetry of the RF signal is corrected to enhance quality of the reproduced data.

    摘要翻译： 提供了一种用于光盘系统的数据再现装置。 包括用于对输入RF信号进行采样并输出采样结果的模数转换器（ADC），用于将采样信号相加的加法器和不对称校正信号。 添加的信号被输出。 提供空白/缺陷检测器，用于在预定的时间间隔期间，如果在添加的信号中没有检测到数据变化，则产生空白检测信号。 提供校正信号发生器，用于根据接收到的加法信号计算数字和值（DSV），基于所计算的DSV产生不对称校正信号，并将所生成的不对称校正信号输出到加法器。 提供了波形均衡器，用于对添加的信号进行波形均衡。 提供解码器，用于对波形均衡的信号进行解码并输出结果。 如果输出空白检测信号，则校正信号校正器临时停止关于相应的相加信号的间隔的DSV计算操作。 因此，校正RF信号的不对称性以提高再现数据的质量。

    Method of detecting frequency of digital phase locked loop
    2.
    发明授权
    Method of detecting frequency of digital phase locked loop 有权
    数字锁相环频率检测方法

    公开(公告)号：US06580775B1

    公开(公告)日：2003-06-17

    申请号：US09449735

    申请日：1999-11-26

    申请人： Hyun-Soo Park ,  Jae-Seong Shim ,  Yong-Kwang Won

    发明人： Hyun-Soo Park ,  Jae-Seong Shim ,  Yong-Kwang Won

    IPC分类号： H03D324

    CPC分类号： H03L7/091 ,  G01R23/10 ,  G11B20/1403 ,  H03L7/113

    摘要： A method of detecting a frequency of a digital phase locked loop in an optical disc reproduction and/or recording apparatus, which includes (a) detecting an edge point of an input signal, (b) sampling a previous and following input signal on the basis of the detected edge point into a predetermined frequency, (c) counting a number of reference clock signals between the detected edge point and a sample which is positioned previously, adding a count value and an interval of time corresponding to the count value to obtain a frequency count value at the edge point, and (e) comparing the obtained frequency count value with a predetermined reference value, to enhance the frequency according to the comparison result can detect frequency having high resolution with only a reference clock frequency without heightening a frequency of a reference clock signal, to thereby enhance the quality of data. The frequency having the high resolution with only the reference clock frequency without heightening the frequency of the reference clock signal is detected, to thereby enhance the quality of data.

    摘要翻译： 一种在光盘再现和/或记录装置中检测数字锁相环的频率的方法，包括：（a）检测输入信号的边沿点，（b）基于上述和之后的输入信号进行采样 （c）计数检测到的边缘点与先前位于的样本之间的参考时钟信号的数量，增加与计数值相对应的计数值和时间间隔，以获得 在边缘点处的频率计数值，以及（e）将获得的频率计数值与预定参考值进行比较，以根据比较结果增强频率，可以仅利用参考时钟频率来检测具有高分辨率的频率，而不增加频率 一个参考时钟信号，从而提高数据的质量。 检测到仅具有参考时钟频率的高分辨率的频率而不增加参考时钟信号的频率，从而提高数据的质量。

    Apparatus for correcting asymmetry of reproduction signals and method therefor
    3.
    发明授权
    Apparatus for correcting asymmetry of reproduction signals and method therefor 失效
    用于校正再现信号的不对称性的装置及其方法

    公开(公告)号：US06324144B1

    公开(公告)日：2001-11-27

    申请号：US09443150

    申请日：1999-11-18

    申请人： Yong-Kwang Won ,  Jae-Seong Shim

    发明人： Yong-Kwang Won ,  Jae-Seong Shim

    IPC分类号： G11B700

    CPC分类号： G11B20/10203 ,  G11B20/10037

    摘要： An apparatus for correcting asymmetry existing in a reproduction signal corrects the asymmetry by signal-processing the reproduction signal from an optical disk in digital form. The asymmetry correction apparatus changes the threshold values for counting the sign bits of the reproduction signal and the asymmetry correction values although discontinuous intervals exist on the optical disc, thereby providing an effect of easily varying an adaptive speed with respect to the discontinuous signal.

    摘要翻译： 用于校正再现信号中存在的不对称的装置通过以数字形式对来自光盘的再现信号进行信号处理来校正不对称性。 不对称校正装置改变用于计数再现信号的符号位的阈值和不对称校正值，尽管在光盘上存在不连续的间隔，从而提供相对于不连续信号容易地改变自适应速度的效果。

    Device and method for data reproduction
    6.
    发明申请
    Device and method for data reproduction 审中-公开
    用于数据再现的装置和方法

    公开(公告)号：US20050053174A1

    公开(公告)日：2005-03-10

    申请号：US10869851

    申请日：2004-06-18

    申请人： Hyun-Soo Park ,  Jae-Wook Lee ,  Eun-Jin Ryu ,  Jae-Seong Shim ,  Eing-Seob Cho ,  Jung-Hyun Lee

    发明人： Hyun-Soo Park ,  Jae-Wook Lee ,  Eun-Jin Ryu ,  Jae-Seong Shim ,  Eing-Seob Cho ,  Jung-Hyun Lee

    IPC分类号： G11B20/14 ,  G11B20/10 ,  H04B1/10

    CPC分类号： G11B20/10101 ,  G11B20/10009 ,  G11B20/10296 ,  G11B2020/1288 ,  G11B2220/2541

    摘要： A device and method for data reproduction of an optical disk generating an optimized reference level optimizing a channel characteristic, the device includes a channel identifier which receives an input signal of an equalizer and detects an optimum level, and an adaptation process which by using the detected optimum level, updates the coefficient of the equalizer. Accordingly, the data reproduction device and method can detect a reference level value capable of maximizing the performance of a viterbi decoder and limit noise caused by tilt and other effects that may occur by the shape of a disk or a pickup apparatus.

    摘要翻译： 一种用于产生优化信道特性的优化参考电平的光盘的数据再现的装置和方法，该装置包括接收均衡器的输入信号并检测最佳电平的信道标识符，以及通过使用检测到的适配过程 最佳级别，更新均衡器的系数。 因此，数据再现装置和方法可以检测能够最大化维特比解码器的性能的参考电平值，并限制由于盘或拾取装置的形状可能发生的倾斜和其它效应引起的噪声。

    CODE GENERATION AND ALLOCATION METHOD
    7.
    发明申请
    CODE GENERATION AND ALLOCATION METHOD 失效
    代码生成和分配方法

    公开(公告)号：US20080150770A1

    公开(公告)日：2008-06-26

    申请号：US12027317

    申请日：2008-02-07

    申请人： Jae-Seong Shim ,  Ki-hyun Kim ,  Hyun-soo Park ,  Kiu-hae Jung ,  Igbal Mahboob

    发明人： Jae-Seong Shim ,  Ki-hyun Kim ,  Hyun-soo Park ,  Kiu-hae Jung ,  Igbal Mahboob

    IPC分类号： H03M7/00

    CPC分类号： G11B20/1426 ,  G11B2020/1457 ,  H03M5/145 ,  H03M7/46

    摘要： A method of generating and allocating codewords includes allocating one of two selectable codewords b1 and b2 as codeword “b” when a preceding codeword “a” and a following codeword “b” form a code stream X, in which the codewords b1 and b2 have opposite INV values which are parameters indicating whether the number of ‘1s’ contained in a codeword is an odd number or an even number. When the code stream of the preceding codeword “a” and the following codeword b1 is X1, and when the code stream of the preceding codeword “a” and the following codeword b2 is X2, the codewords are allocated such that the INV values of X1 and X2 are maintained to be opposite when the preceding codeword “a” or the following codeword b1 (b2) (b1 or b2) should be replaced by another codeword in compliance with a predetermined boundary condition given between codewords. The codewords are allocated so that a DC suppression capability of the code stream can be maintained.

    摘要翻译： 一种生成和分配码字的方法包括：当前一个码字“a”和随后的码字“b”形成码流X时，将两个可选码字b 1和b 2之一分配为码字“b”，其中码字b 1 并且b 2具有相反的INV值，它们是指示码字中包含的“1”的数目是奇数还是偶数的参数。 当前一个码字“a”的代码流和随后的码字b 1是X 1时，并且当前一个码字“a”和随后的码字b 2的码流是X 2时，分配这些码字， 当前一码字“a”或后续码字b 1（b 2）（b 1或b 2）应由符合预定边界条件的另一码字替换时，X 1和X 2的INV值保持相反 在码字之间给出。 分配码字使得能够维持码流的DC抑制能力。

    DISK HAVING UNIQUE CODE FOR IDENTIFYING ITS TYPE FOR OPTICAL DISK PLAYER AND METHOD FOR DISCRIMINATING TYPES THEREOF
    8.
    发明申请
    DISK HAVING UNIQUE CODE FOR IDENTIFYING ITS TYPE FOR OPTICAL DISK PLAYER AND METHOD FOR DISCRIMINATING TYPES THEREOF 有权
    具有用于识别其用于光盘播放器的类型的唯一代码的盘片及其分类类型的方法

    公开(公告)号：US20080181077A1

    公开(公告)日：2008-07-31

    申请号：US11742631

    申请日：2007-05-01

    申请人： Jae-Seong Shim

    发明人： Jae-Seong Shim

    IPC分类号： G11B7/00

    CPC分类号： G11B7/00736 ,  G11B7/0037 ,  G11B7/0053 ,  G11B7/007 ,  G11B19/12 ,  G11B19/122 ,  G11B19/127 ,  G11B20/00086 ,  G11B20/00268 ,  G11B2007/0006 ,  G11B2007/0013

    摘要： A BCA (Burst Cutting Area) code including a unique disk code indicating the type of a disk is written in a BCA code area of the disk. If the disk is mounted into the optical disk player, the optical disk player reads data written in the BCA code area, extracts the disk code contained in the read data, and confirms the type of the disk corresponding to the extracted disk code by retrieving a disk code table in which disk codes corresponding to the types of disks are mapped.

    摘要翻译： 包括指示磁盘类型的唯一磁盘代码的BCA（突发切割区域）代码被写入到盘的BCA代码区域中。 如果盘被安装到光盘播放器中，则光盘播放器读取在BCA代码区中写入的数据，提取包含在读取数据中的磁盘代码，并通过检索提取的磁盘代码来确认对应于提取的磁盘代码的磁盘的类型 磁盘代码表，其中映射了与磁盘类型相对应的磁盘代码。

    DISK HAVING UNIQUE CODE FOR IDENTIFYING ITS TYPE FOR OPTICAL DISK PLAYER AND METHOD FOR DISCRIMINATING TYPES THEREOF
    9.
    发明申请
    DISK HAVING UNIQUE CODE FOR IDENTIFYING ITS TYPE FOR OPTICAL DISK PLAYER AND METHOD FOR DISCRIMINATING TYPES THEREOF 有权
    具有用于识别其用于光盘播放器的类型的唯一代码的盘片及其分类类型的方法

    公开(公告)号：US20070201333A1

    公开(公告)日：2007-08-30

    申请号：US11742179

    申请日：2007-04-30

    申请人： Jae-Seong Shim

    发明人： Jae-Seong Shim

    IPC分类号： G11B7/00

    CPC分类号： G11B7/00736 ,  G11B7/0037 ,  G11B7/0053 ,  G11B7/007 ,  G11B19/12 ,  G11B19/122 ,  G11B19/127 ,  G11B20/00086 ,  G11B20/00268 ,  G11B2007/0006 ,  G11B2007/0013

    摘要： A BCA (Burst Cutting Area) code including a unique disk code indicating the type of a disk is written in a BCA code area of the disk. If the disk is mounted into the optical disk player, the optical disk player reads data written in the BCA code area, extracts the disk code contained in the read data, and confirms the type of the disk corresponding to the extracted disk code by retrieving a disk code table in which disk codes corresponding to the types of disks are mapped.

    摘要翻译： 包括指示磁盘类型的唯一磁盘代码的BCA（突发切割区域）代码被写入到盘的BCA代码区域中。 如果盘被安装到光盘播放器中，则光盘播放器读取在BCA代码区中写入的数据，提取包含在读取数据中的磁盘代码，并通过检索提取的磁盘代码来确认对应于提取的磁盘代码的磁盘的类型 磁盘代码表，其中映射了与磁盘类型相对应的磁盘代码。

    Device for playing back multiple kinds of optical disc selectively
    10.
    发明授权
    Device for playing back multiple kinds of optical disc selectively 失效
    有选择地播放多种光盘的装置

    公开(公告)号：US06233394B1

    公开(公告)日：2001-05-15

    申请号：US08841633

    申请日：1997-04-30

    申请人： Jong-Sik Jeong ,  Jae-Seong Shim ,  Chan-Dong Cho ,  Byung-Jun Kim

    发明人： Jong-Sik Jeong ,  Jae-Seong Shim ,  Chan-Dong Cho ,  Byung-Jun Kim

    IPC分类号： H04N5781

    CPC分类号： G11B27/105 ,  G11B19/12 ,  G11B20/10 ,  G11B20/18 ,  G11B2220/213 ,  G11B2220/2545 ,  G11B2220/2562 ,  H04N5/85 ,  H04N9/7921 ,  H04N9/8042

    摘要： A method for playing back multiple kinds of optical discs includes making a decision as to whether a played back optical disc is classified into a digital video disc (DVD) or compact disc (CD) class, detecting the synchronization pattern of the identified disc class, reading a data stream from the optical disc by controlling the voltage controlled oscillation and the constant linear speed of the disc according to the identified disc class, decoding the data stream into the identified disc class according to the detected synchronization pattern, and transferring the decoded data stream to an audio/video decoder or a ROM decoder.

    摘要翻译： 一种用于回放多种光盘的方法包括：将回放光盘分类为数字视频盘（DVD）或光盘（CD）类别，检测所识别的盘类别的同步模式， 通过根据所识别的盘类别控制盘的电压控制振荡和恒定的线速度，从光盘读取数据流，根据检测到的同步模式将数据流解码为识别的盘类，并且传送解码的数据 流到音频/视频解码器或ROM解码器。