发明授权
US4860272A Erroneous track jump restoration apparatus for optical record disc player
失效
光学记录光盘播放器的错误轨道跳转恢复装置
- 专利标题: Erroneous track jump restoration apparatus for optical record disc player
- 专利标题(中): 光学记录光盘播放器的错误轨道跳转恢复装置
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申请号: US99384申请日: 1987-09-21
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公开(公告)号: US4860272A公开(公告)日: 1989-08-22
- 发明人: Meisei Nishikawa , Jun Inagawa , Takeshi Inagaki , Toshihiko Kaneshige , Yasuhiro Hayashi , Tadashi Kojima
- 申请人: Meisei Nishikawa , Jun Inagawa , Takeshi Inagaki , Toshihiko Kaneshige , Yasuhiro Hayashi , Tadashi Kojima
- 申请人地址: JPX Kanagawa
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JPX Kanagawa
- 优先权: JPX61-221427 19860919; JPX61-221428 19860919; JPX61-221430 19860919; JPX61-221431 19860919
- 主分类号: G11B7/005
- IPC分类号: G11B7/005 ; G11B7/09 ; G11B19/04 ; G11B20/10 ; G11B20/18
摘要:
An apparatus for reproducing data stored on a disc in a plurality of tracks connected in a continuous spiral or separated in concentric tracks. The apparatus includes a device for rotating the disc, an optical pickup device aligned with one of the tracks for reading the data from the track, the pickup being subject to jump movement of alignment with the track into alignment with another track in response to movement of the device, a buffer memory device temporarily storing successive portions of the data read from the track for delaying reproduction of the data for a predetermined time after the reading of the data, a track jump detection device for detecting movement of the pickup device into alignment with anothr track and interrupting temporary storage of the data read from the other track by the buffer memory device, a drive device for moving the pickup device with respect to the disc for reading data, and for changing the alignment of the pickup device from the other track to the one track in response to the track jump detection device, and an output device for substantially uninterrupted reproduction of the temporarily stored data.
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