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    • 5. 发明授权
    • System and method for restoring an optical disc signal
    • 用于恢复光盘信号的系统和方法
    • US07460452B2
    • 2008-12-02
    • US10964265
    • 2004-10-13
    • Soo-woong LeeDae-woong Kim
    • Soo-woong LeeDae-woong Kim
    • G11B20/10
    • G11B20/10009G11B20/1426
    • Provided are a restoration system and method for an optical disc, by which a radio frequency signal optically picked up from an optical disc is restored. The restoration system includes a slice, a phase locked loop, a latch circuit, a 3T correction circuit, and a demodulator. In particular, the 3T correction circuit includes an extension storage device, a length measuring device, a phase detector, and an extension determiner and corrects data output from the extension storage device. In the restoration method, data required for determining the need for correction and the direction of correction is detected and a plurality of steps for selecting non-correction, two directional correction, forward correction, and backward correction are performed, thereby correcting the high radio frequency signal according to conditions of the high radio frequency signal. It is preferable that the restoration system operates according to the restoration method.
    • 提供了一种用于光盘的恢复系统和方法,通过该光盘恢复从光盘光学拾取的射频信号。 恢复系统包括片,锁相环,锁存电路,3T校正电路和解调器。 特别地,3T校正电路包括扩展存储装置,长度测量装置,相位检测器和扩展确定器,并校正从扩展存储装置输出的数据。 在恢复方法中,检测确定需要校正和校正方向所需的数据,并且执行用于选择非校正,双向校正,正向校正和反向校正的多个步骤,从而校正高频率 信号根据高频信号的条件。 恢复系统优选地根据恢复方法进行操作。
    • 7. 发明授权
    • Apparatus and method for detecting frame synchronization signal for reducing errors in data demodulation in optical disc system
    • 用于检测帧同步信号以减少光盘系统中数据解调误差的装置和方法
    • US07257071B2
    • 2007-08-14
    • US10799323
    • 2004-03-12
    • Dae-woong KimSoo-woong Lee
    • Dae-woong KimSoo-woong Lee
    • G11B7/00
    • H04L7/08G11B20/1217G11B2020/1287
    • A frame synchronization signal detection apparatus includes a synchronization signal detector, a main frame synchronization signal generator, a sub frame synchronization signal generator, and an output unit. The synchronization signal detector detects and outputs a synchronization signal from a digital data signal. The main frame synchronization signal generator detects and outputs a first valid synchronization signal from the synchronization signal, as an internal frame synchronization signal, and generates and outputs a first insertion synchronization signal, as the internal frame synchronization signal, if the first valid synchronization signal is not detected in a predetermined first time period. The sub frame synchronization signal generator detects and outputs a second valid synchronization signal from a synchronization signal. The output unit outputs a frame synchronization signal. The main frame synchronization signal generator stops generating the first insertion synchronization signal, and detects and outputs a first valid synchronization signal as an internal frame synchronization signal.
    • 帧同步信号检测装置包括同步信号检测器,主帧同步信号发生器,子帧同步信号发生器和输出单元。 同步信号检测器检测并输出来自数字数据信号的同步信号。 主帧同步信号发生器检测并输出来自同步信号的第一有效同步信号作为内部帧同步信号,并产生并输出作为内部帧同步信号的第一插入同步信号,如果第一有效同步信号为 在预定的第一时间段内未检测到。 子帧同步信号发生器从同步信号检测并输出第二有效同步信号。 输出单元输出帧同步信号。 主帧同步信号发生器停止产生第一插入同步信号,并检测并输出作为内部帧同步信号的第一有效同步信号。
    • 9. 发明申请
    • System and method for restoring an optical disc signal
    • 用于恢复光盘信号的系统和方法
    • US20050083821A1
    • 2005-04-21
    • US10964265
    • 2004-10-13
    • Soo-woong LeeDae-woong Kim
    • Soo-woong LeeDae-woong Kim
    • G11B20/14G11B5/09G11B7/00G11B7/004G11B7/005G11B20/10G11B20/18
    • G11B20/10009G11B20/1426
    • Provided are a restoration system and method for an optical disc, by which a radio frequency signal optically picked up from an optical disc is restored. The restoration system includes a slice, a phase locked loop, a latch circuit, a 3T correction circuit, and a demodulator. In particular, the 3T correction circuit includes an extension storage device, a length measuring device, a phase detector, and an extension determiner and corrects data output from the extension storage device. In the restoration method, data required for determining the need for correction and the direction of correction is detected and a plurality of steps for selecting non-correction, two directional correction, forward correction, and backward correction are performed, thereby correcting the high radio frequency signal according to conditions of the high radio frequency signal. It is preferable that the restoration system operates according to the restoration method.
    • 提供了一种用于光盘的恢复系统和方法,通过该光盘恢复从光盘光学拾取的射频信号。 恢复系统包括片,锁相环,锁存电路,3T校正电路和解调器。 特别地,3T校正电路包括扩展存储装置,长度测量装置,相位检测器和扩展确定器,并校正从扩展存储装置输出的数据。 在恢复方法中,检测确定需要校正和校正方向所需的数据,并且执行用于选择非校正,双向校正,正向校正和反向校正的多个步骤,从而校正高频率 信号根据高频信号的条件。 恢复系统优选地根据恢复方法进行操作。