发明授权
- 专利标题： Information recording/reproducing apparatus for recording and reproducing information in accordance with mark interval recording scheme or mark length recording scheme
- 专利标题（中）： 用于根据标记间隔记录方案或标记长度记录方案记录和再现信息的信息记录/再现装置
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申请号： US34424申请日： 1993-03-19
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公开(公告)号： US5452279A公开(公告)日： 1995-09-19
- 发明人: Tsuneshi Yokota , Katsumi Suzuki , Tomohisa Yoshimaru
- 申请人： Tsuneshi Yokota , Katsumi Suzuki , Tomohisa Yoshimaru
- 申请人地址： JPX Kawasaki
- 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 Kawasaki
- 优先权： JPX4-064977 19920323
- 主分类号： G11B7/00
- IPC分类号： G11B7/00 ; G11B7/005 ; G11B7/007 ; G11B19/02 ; G11B19/12
摘要：
The recording scheme of an optical disk is initially determined by a cartridge identifier housing the optical disk. The optical disk is then rotated at a rotational speed corresponding to the initially determined recording scheme, and a signal processing circuit is switched. Management data recorded on the optical disk is read to also determine the recording scheme, thereby improving the reliability of the determination. When no management data can be read, a recording scheme and associated rotational speed are changed. The management data representing the recording scheme is then read according to the changed recording scheme. A medium type determined based on the management data has priority over that of the medium type obtained by the identifier of the cartridge.
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