发明申请
US20050088943A1 Information recording method and apparatus with suppressed mark edge jitters
有权
具有抑制标记边缘抖动的信息记录方法和装置
- 专利标题: Information recording method and apparatus with suppressed mark edge jitters
- 专利标题(中): 具有抑制标记边缘抖动的信息记录方法和装置
-
申请号: US10979125申请日: 2004-11-03
-
公开(公告)号: US20050088943A1公开(公告)日: 2005-04-28
- 发明人: Makoto Miyamoto , Tsuyoshi Toda , Masatoshi Ohtake , Motoyasu Terao , Junko Ushiyama , Keikichi Andoo , Yumiko Anzai , Akemi Hirotsune , Tetsuya Nishida , Hideki Saga
- 申请人: Makoto Miyamoto , Tsuyoshi Toda , Masatoshi Ohtake , Motoyasu Terao , Junko Ushiyama , Keikichi Andoo , Yumiko Anzai , Akemi Hirotsune , Tetsuya Nishida , Hideki Saga
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 优先权: JP09-243669 19970909
- 主分类号: G11B7/00
- IPC分类号: G11B7/00 ; G11B5/09 ; G11B7/004 ; G11B7/0045 ; G11B7/0055 ; G11B7/006 ; G11B7/125 ; G11B7/126 ; G11B20/10 ; G11B20/14
摘要:
A method for recording information is disclosed in which an information recording medium is irradiated with a recording energy beam power-modulated into at least a record power level and a record-ready power level lower than the record power level. When forming a mark portion of a predetermined length, the radiation energy of the energy beam is increased as compared with when forming a mark portion of a different length before or after the first pulse of an energy beam pulse train including at least a pulse for forming the mark portion. Also, only in the case where the energy beam is modulated by the power lower in power level than the record-ready power level after the last pulse of the energy beam pulse train including at least one pulse for forming a mark portion and the mark portion is followed by a space portion of a predetermined length, the particular radiation energy of low power level is reduced as compared with when the mark portion is followed by a space potion of a different length. The radiation energy is increased and/or decreased.
公开/授权文献
信息查询
IPC分类: