发明授权
- 专利标题： Method and apparatus for optical information recording capable of precisely controlling laser light emission
- 专利标题（中）： 能够精确控制激光发光的光学信息记录方法和装置
-
申请号： US11229727申请日： 2005-09-20
-
公开(公告)号： US07652965B2公开(公告)日： 2010-01-26
- 发明人: Teruyasu Watabe
- 申请人： Teruyasu Watabe
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Dickstein Shapiro LLP
- 优先权： JP2004-277410 20040924
- 主分类号： G11B7/00
- IPC分类号： G11B7/00
摘要：
This patent specification describes a novel optical information recording method for recording mark and space information. The method for recording optical information comprises the steps of generating a peak level current waveform having a high level, generating a bias level current waveform having a low level generating a normal boost level current waveform and a low boost level current waveform, driving a laser light source with the normal boost level current waveform superimposed on the low level current waveform in a normal boost level light emission and switching a drive current waveform for the laser light source to the low boost level current waveform superimposed on the low level current waveform in a peak level sampling operation.
公开/授权文献
信息查询
IPC分类:
