公开(公告)号：EP0895228A3

公开(公告)日：1999-11-24

申请号：EP98113435.6

申请日：1998-07-18

申请人： THOMSON multimedia S.A.

发明人： van Zalinge, Klaas

IPC分类号： G11B7/09

CPC分类号： G11B7/0906 ,  G11B7/0901 ,  G11B7/0943

摘要： A tracking system for optical storage media e.g. an optical disk, comprising a matrix (14) of four sensors (A, B, C, D) receiving a beam reflected by the disk; one processing channel for each sensor signal, including means (20, 21) for producing a binary signal from the sensor signal, and an adjustable edge delay circuit (23, 23') operating on the binary signal; one adder (25, 27) for each pair of channels corresponding to diagonal sensors of the matrix; and a phase detector (29) comparing the outputs of the adders.

公开(公告)号：EP0895228A2

公开(公告)日：1999-02-03

申请号：EP98113435.6

申请日：1998-07-18

申请人： THOMSON multimedia S.A.

发明人： van Zalinge, Klaas

IPC分类号： G11B7/09

CPC分类号： G11B7/0906 ,  G11B7/0901 ,  G11B7/0943

摘要： A tracking system for optical storage media e.g. an optical disk, comprising a matrix (14) of four sensors (A, B, C, D) receiving a beam reflected by the disk; one processing channel for each sensor signal, including means (20, 21) for producing a binary signal from the sensor signal, and an adjustable edge delay circuit (23, 23') operating on the binary signal; one adder (25, 27) for each pair of channels corresponding to diagonal sensors of the matrix; and a phase detector (29) comparing the outputs of the adders.

摘要翻译： 光存储介质的跟踪系统，例如 光盘，包括由四个传感器（A，B，C，D）组成的矩阵（14），该矩阵接收由盘反射的光束; 用于每个传感器信号的一个处理通道，包括用于从传感器信号产生二进制信号的装置（20,21）以及对二进制信号进行操作的可调节边缘延迟电路（23,23'）; 对应于矩阵的对角线传感器的每对通道的一个加法器（25,27） 和比较加法器的输出的相位检测器（29）。