发明授权
US5933411A Optical recording medium having a wobbling section for recording address
information and methods of recording and reproduction using same
失效
具有用于记录地址信息的摆动部分和使用其的记录和再现方法的光学记录介质
- 专利标题： Optical recording medium having a wobbling section for recording address information and methods of recording and reproduction using same
- 专利标题（中）： 具有用于记录地址信息的摆动部分和使用其的记录和再现方法的光学记录介质
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申请号： US890401申请日： 1997-07-09
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公开(公告)号： US5933411A公开(公告)日： 1999-08-03
- 发明人: Tetsuya Inui , Hideaki Sato , Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
- 申请人： Tetsuya Inui , Hideaki Sato , Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
- 申请人地址： JPX Osaka
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka
- 优先权： JPX8-179255 19960709; JPX8-263880 19961004
- 主分类号： G11B7/005
- IPC分类号： G11B7/005 ; G11B7/007 ; G11B7/09 ; G11B7/24 ; G11B7/26 ; G11B11/105
摘要：
An optical disk has address recording sections each of which has a wobbled part of one of side walls of a groove. Each address recording section is formed by providing convexes of a groove in an adjacent land so as to widen the groove. With the wobbles thus provided in a concavo-convex form, address information is recorded. Besides, the address recording sections thus provided in the grooves are linearly disposed in radial directions of the optical disk. By thus arranging the optical disk on whose grooves and/or lands information is recorded, mixing of wobble frequency components in reproduced information signals does not occur, the sector method is applicable to the optical disk, and information signals of high quality can be obtained.