发明授权
US5559777A Optical recording method employing pit edge recording on recording
medium divided into a plurality of zones wherein recording parameters
vary from zone to zone
失效
在记录介质上采用凹坑边缘记录的光记录方法被划分为多个区域,其中记录参数随区域而变化
- 专利标题: Optical recording method employing pit edge recording on recording medium divided into a plurality of zones wherein recording parameters vary from zone to zone
- 专利标题(中): 在记录介质上采用凹坑边缘记录的光记录方法被划分为多个区域,其中记录参数随区域而变化
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申请号: US428057申请日: 1995-04-25
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公开(公告)号: US5559777A公开(公告)日: 1996-09-24
- 发明人: Takeshi Maeda , Shinichi Arai , Kazuo Isaka , Atsushi Saito , Takuya Mizokami , Hisataka Sugiyama , Satoshi Kawamura
- 申请人: Takeshi Maeda , Shinichi Arai , Kazuo Isaka , Atsushi Saito , Takuya Mizokami , Hisataka Sugiyama , Satoshi Kawamura
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX2-133819 19900525; JPX2-133820 19900525; JPX2-228128 19900831
- 主分类号: G11B7/004
- IPC分类号: G11B7/004 ; G11B7/0045 ; G11B7/005 ; G11B7/007 ; G11B7/125 ; G11B20/10 ; G11B20/12 ; G11B20/14 ; G11B20/18 ; G11B23/40 ; G11B5/09
摘要:
An information recording/reproducing method is disclosed for an information recording/reproducing apparatus including a recording medium having a disk-like shape, a unit for rotating the recording medium at a constant angular velocity, a unit for recording code information so that the bit length of the code information becomes approximately constant with respect to a radial position on the recording medium, a unit for modulating the code information to be recorded to form a modulated signal, and a recording unit for forming in the recording medium a localized recording region having a different physical property with respect to an unrecorded region, the recording unit being controlled by the modulated signal so that the code information is recorded to correspond to the edge of the recording region, wherein the bit rate of the code information to be recorded changes depending on a location on the recording medium, and a part of each of a recording characteristic of the apparatus and a reproducing characteristic of the apparatus is changed in accordance with a location on the recording medium.
公开/授权文献
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