公开(公告)号：US5483515A

公开(公告)日：1996-01-09

申请号：US308023

申请日：1994-09-16

申请人： David C. Cheng ,  Jerry E. Hurst, Jr. ,  Radley W. Olson ,  David A. Thompson

发明人： David C. Cheng ,  Jerry E. Hurst, Jr. ,  Radley W. Olson ,  David A. Thompson

IPC分类号： G11B7/005 ,  G11B7/00

CPC分类号： G11B7/005

摘要： A system is disclosed for canceling cross-talk in a data read signal from an optical data storage medium. The system includes three AD converters for receiving read signals from three read sensors, and the read signals respectively represent data from a center data track and its two adjacent side data tracks on an optical data storage disk. The digitized signals are sent to a skew compensator to remove time skew between the signals. Then, the amplitudes represented by the side track signals are adjusted, and the adjusted side track signals are subtracted from the center track signal to cancel cross-talk in the center track signal which is attributable to data contained in the side data tracks. The center track signal is then equalized to account for the frequency response of the center track read sensor.

摘要翻译： 公开了一种用于消除来自光学数据存储介质的数据读取信号中的串扰的系统。 该系统包括用于从三个读取传感器接收读取信号的三个AD转换器，并且读取信号分别表示来自光学数据存储盘上的中心数据轨道及其两个相邻侧面数据轨道的数据。 数字化信号被发送到偏移补偿器以消除信号之间的时间偏差。 然后，调整由侧轨道信号表示的幅度，并且从中心轨道信号中减去调整的侧轨迹信号，以消除可归因于侧面数据轨道中包含的数据的中心轨道信号中的串扰。 然后将中心轨迹信号相等以考虑中心轨道读取传感器的频率响应。