公开(公告)号：US08913472B2

公开(公告)日：2014-12-16

申请号：US13747491

申请日：2013-01-23

申请人： Chang-Jin Song ,  Ping-Chiang Yang

发明人： Chang-Jin Song ,  Ping-Chiang Yang

IPC分类号： G11B7/00 ,  G11B20/10 ,  G11B20/12

CPC分类号： G11B20/10 ,  G11B20/10222 ,  G11B2020/122 ,  G11B2220/2537

摘要： A data capture device including a signal processing unit, a frequency locked circuit and a match circuit is provided. The signal processing unit converts a radio frequency signal to a return-to-zero signal. The frequency locked circuit estimates a minimum interval length by the return-to-zero signal in a plurality of detecting periods, and generates an enable signal according to the minimum interval length and the return-to-zero signal. The frequency locked circuit determines whether to calibrate the enable signal according to a distribution of a plurality of enable pulses in the enable signal to generate a sampling signal. The match circuit samples the return-to-zero signal by the sampling signal and generates a synchronization signal according to a sampling result. The match circuit generates a composite synchronization signal by a virtual signal and the synchronization signal, and captures a plurality of row data from the return-to-zero signal according to the composite synchronization signal.

摘要翻译： 提供了包括信号处理单元，频率锁定电路和匹配电路的数据采集装置。 信号处理单元将射频信号转换为归零信号。 频率锁定电路通过多个检测周期中的归零信号来估计最小间隔长度，并且根据最小间隔长度和归零信号产生使能信号。 频率锁定电路根据使能信号中的多个使能脉冲的分布来确定是否校准使能信号以产生采样信号。 匹配电路通过采样信号对归零信号进行采样，并根据采样结果产生同步信号。 匹配电路通过虚拟信号和同步信号生成复合同步信号，并根据复合同步信号从返回零信号中捕获多个行数据。

公开(公告)号：US20100135137A1

公开(公告)日：2010-06-03

申请号：US12565357

申请日：2009-09-23

申请人： Chia-Ming Chang ,  Chun-Nan Liu ,  Ping-Chiang Yang

发明人： Chia-Ming Chang ,  Chun-Nan Liu ,  Ping-Chiang Yang

IPC分类号： G11B7/00

CPC分类号： G11B7/0053 ,  G11B20/10222 ,  G11B20/1403 ,  G11B2020/122 ,  G11B2020/1287 ,  G11B2220/2537

摘要： An apparatus for detecting burst cutting areas on optical discs includes an optical pickup head, a front-end processing unit, a sync pattern detector, a channel clock recovery device, and a data demodulator. The front-end processing unit generates a BCA signal in response to a radio frequency signal. The sync pattern detector counts the BCA signal according to a reference clock, detects a sync pattern of the BCA signal and outputs a channel bit length counting value. The channel clock recovery device generates a channel clock according to the reference clock and the channel bit length counting value. The data demodulator transfers the BCA signal into a BCA data according to the channel clock. The sync pattern detector continuously counts the B CA signal and continuously outputs a plurality of counting values, so that the sync pattern of the BCA signal can be determined according to at least three sequential counting values.

摘要翻译： 用于检测光盘上的突发切割区域的装置包括光学拾取头，前端处理单元，同步图案检测器，通道时钟恢复装置和数据解调器。 前端处理单元响应于射频信号产生BCA信号。 同步模式检测器根据参考时钟对BCA信号进行计数，检测BCA信号的同步模式并输出通道位长度计数值。 通道时钟恢复装置根据参考时钟和通道位长度计数值产生通道时钟。 数据解调器根据通道时钟将BCA信号传送到BCA数据。 同步模式检测器连续地对B CA信号进行计数，并连续地输出多个计数值，使得可以根据至少三个连续的计数值来确定BCA信号的同步模式。

公开(公告)号：US08130607B2

公开(公告)日：2012-03-06

申请号：US12565357

申请日：2009-09-23

申请人： Chia-Ming Chang ,  Chun-Nan Liu ,  Ping-Chiang Yang

发明人： Chia-Ming Chang ,  Chun-Nan Liu ,  Ping-Chiang Yang

IPC分类号： G11B5/58 ,  G11B15/00 ,  G11B5/09 ,  G11B20/18 ,  G11B20/14

CPC分类号： G11B7/0053 ,  G11B20/10222 ,  G11B20/1403 ,  G11B2020/122 ,  G11B2020/1287 ,  G11B2220/2537

摘要： An apparatus for detecting burst cutting areas on optical discs includes an optical pickup head, a front-end processing unit, a sync pattern detector, a channel clock recovery device, and a data demodulator. The front-end processing unit generates a BCA signal in response to a radio frequency signal. The sync pattern detector counts the BCA signal according to a reference clock, detects a sync pattern of the BCA signal and outputs a channel bit length counting value. The channel clock recovery device generates a channel clock according to the reference clock and the channel bit length counting value. The data demodulator transfers the BCA signal into a BCA data according to the channel clock. The sync pattern detector continuously counts the BCA signal and continuously outputs a plurality of counting values, so that the sync pattern of the BCA signal can be determined according to at least three sequential counting values.

摘要翻译： 用于检测光盘上的突发切割区域的装置包括光学拾取头，前端处理单元，同步图案检测器，通道时钟恢复装置和数据解调器。 前端处理单元响应于射频信号产生BCA信号。 同步模式检测器根据参考时钟对BCA信号进行计数，检测BCA信号的同步模式并输出通道位长度计数值。 通道时钟恢复装置根据参考时钟和通道位长度计数值产生通道时钟。 数据解调器根据通道时钟将BCA信号传送到BCA数据。 同步模式检测器连续对BCA信号进行计数，并连续地输出多个计数值，从而可以根据至少三个顺序的计数值来确定BCA信号的同步模式。

公开(公告)号：US20110044146A1

公开(公告)日：2011-02-24

申请号：US12577738

申请日：2009-10-13

申请人： Chia-Ming Chang ,  Ping-Chiang Yang

发明人： Chia-Ming Chang ,  Ping-Chiang Yang

IPC分类号： G11B27/36

CPC分类号： G11B20/1833 ,  G11B20/00086 ,  G11B20/1803 ,  G11B20/1816 ,  G11B2020/122 ,  G11B2220/2541

摘要： An erasure information marking method for a burst cutting area (BCA) of a blu-ray disc (BD) is provided. The erasure information marking method includes obtaining at least four raw data recorded in the BCA; recognizing a record type of the BCA according to the four raw data; obtaining two duplicate copyright protection data, relating to the copyright protection of the BD, in the four raw data according to the record type of the BCA; and marking the erasure information of the BCA according to the difference between the two duplicate copyright protection data.

摘要翻译： 提供了一种用于蓝光盘（BD）的突发切割区域（BCA）的擦除信息标记方法。 擦除信息标记方法包括获得记录在BCA中的至少四个原始数据; 根据四个原始数据识别BCA的记录类型; 根据BCA的记录类型，在四个原始数据中获取与BD的版权保护有关的两个重复版权保护数据; 并根据两个重复的版权保护数据之间的差异标记BCA的擦除信息。