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    • 25. 发明授权
    • Apparatus and method for scrambling and descrambling data wordwise in optical disk system
    • 用于在光盘系统中逐字加扰和解扰数据的装置和方法
    • US07248697B2
    • 2007-07-24
    • US10632612
    • 2003-08-01
    • Dae-Woong KimSoo-Woong Lee
    • Dae-Woong KimSoo-Woong Lee
    • H04L9/00H04N7/167
    • G11B20/10G11B20/00086G11B20/0021G11B2020/1461H04L25/03872H04N5/85H04N5/913H04N9/8042H04N2005/91364
    • An apparatus and a method for scrambling and descrambling data wordwise in an optical disk system are provided. The apparatus includes a bit storing means which stores at least 15 bits, and a calculating means which calculates first through fifteenth bits of the bit storing means in parallel during one clock cycle and inputs the results of the calculation back into the bit storing means. The calculating means performs an XOR logic operation on a seventh bit and a fifteenth bit, on a first bit, an eighth bit, and a twelfth bit, on a second bit, a ninth bit, and a thirteenth bit, on a third bit, a tenth bit, and a fourteenth bit, on a fourth bit, an eleventh bit, and a fifteenth bit, on the first bit and a fifth bit, on the second bit and a sixth bit, on a third bit and the seventh bit, on the fourth bit and the eighth bit, on the fifth bit and the ninth bit, on the sixth bit and the tenth bit, on the seventh bit and the eleventh bit, on the eighth bit and the twelfth bit, on the ninth bit and the thirteenth bit, and on the tenth bit and the fourteenth bit, and inputs the results of the XOR logic operations into the bit storing means.
    • 提供了一种用于在光盘系统中逐字加扰和解扰数据的装置和方法。 该装置包括存储至少15位的比特存储装置,以及一个在一个时钟周期内并行计算比特存储装置的第一到第十五比特的计算装置,并将计算结果输入到比特存储装置中。 计算装置对第三位和第十五位在第三位上的第二位,第九位和第十三位上的第一位,第八位和第十二位执行异或逻辑运算, 在第三位和第七位上的第二位和第六位上的第一位和第五位上的第四位,第十位和第十五位,第十位和第十四位, 在第五位和第九位,第六位和第十位,第七位和第十位,第八位和第十二位,第九位和 第十三位,以及第十位和第十四位,并将XOR逻辑运算的结果输入位存储装置。
    • 28. 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。