公开(公告)号：US20090067315A1

公开(公告)日：2009-03-12

申请号：US12037365

申请日：2008-02-26

申请人： Kyongtae PARK ,  Tae-kyung Kim ,  Jae-cheol Bae

发明人： Kyongtae PARK ,  Tae-kyung Kim ,  Jae-cheol Bae

IPC分类号： G11B7/14 ,  G11B7/00

CPC分类号： G11B7/0909 ,  G11B7/127 ,  G11B7/1369 ,  G11B7/1378 ,  G11B7/13927 ,  G11B7/14 ,  G11B2007/0013

摘要： A multi-channel optical recording and/or reproducing apparatus includes an optical pickup including a plurality of light sources, the optical pickup being adapted to emit a plurality of light beams to a corresponding plurality of tracks of an information storage medium and to detect a plurality of light beams reflected by the corresponding plurality of tracks of the information storage medium; and a control signal generating unit to generate a control signal which equalizes and controls aberrations occurring due to a wavelength difference between the plurality of light sources, a displacement difference on an optical axis between the light sources, or a distance between the light sources, based on detection signals generated according to the plurality of reflected light beams.

摘要翻译： 一种多通道光学记录和/或再现装置，包括具有多个光源的光学拾取器，该光学拾取器适于将多个光束发射到信息存储介质的相应多个轨道并检测多个光源 由所述信息存储介质的相应多个轨道反射的光束; 以及控制信号产生单元，用于产生控制信号，该控制信号对由于多个光源之间的波长差，光源之间的光轴上的位移差异或光源之间的距离而产生的像差进行均衡和控制 根据多个反射光束产生的检测信号。