发明授权
- 专利标题： Optical information recording/reproduciing apparatus having two-division detectors
- 专利标题（中）： 具有两分辨检测器的光信息记录/再现装置
-
申请号： US282768申请日： 1994-07-29
-
公开(公告)号： US5712840A公开(公告)日： 1998-01-27
- 发明人: Susumu Matsumura , Masakuni Yamamoto , Eiji Yamaguchi , Hiroaki Hoshi , Hideki Morishima
- 申请人： Susumu Matsumura , Masakuni Yamamoto , Eiji Yamaguchi , Hiroaki Hoshi , Hideki Morishima
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX2-064305 19900316; JPX2-279710 19901017; JPX2-292708 19901029; JPX2-307910 19901113; JPX2-310524 19901115; JPX2-310682 19901116; JPX2-321116 19901127
- 主分类号： G11B7/13
- IPC分类号： G11B7/13 ; G11B7/135 ; G11B11/105 ; G11B7/00
摘要：
An optical information recording/reproducing apparatus is disclosed. In the apparatus, a light beam polarized in a predetermined direction is irradiated onto an opto-magnetic recording medium to which a pre-determined magnetic field is applied. The light beam from the recording medium is condensed by the optical device and the condenced light beam is detected by the two-division detector. The two-division detector has a division line extending in a direction perpendicular to tracks on the recording medium. According to the apparatus, crosstalks and jitters can be eliminated and reproduction with high reliability can be realized.
公开/授权文献
信息查询
IPC分类:
