发明名称 |
Optical disc having uniform structure |
摘要 |
An optical disc is manufactured under a uniform condition by forming grooves and lands on the entire surface of the disc. The optical disc is configured to obtain a reliable reproduction signal, and the grooves and lands are formed on a lead-in area, a user data area and a lead-out area of the optical disc. Since the same manufacturing condition can be adopted in mastering discs, the yield can be enhanced and the manufacturing cost can be reduced.
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申请公布号 |
US2003002427(A1) |
申请公布日期 |
2003.01.02 |
申请号 |
US20020128530 |
申请日期 |
2002.04.24 |
申请人 |
LEE KYUNG-GEUN;PARK IN-SIK;YOON DU-SEOP |
发明人 |
LEE KYUNG-GEUN;PARK IN-SIK;YOON DU-SEOP |
分类号 |
G11B7/007;G11B7/0037;G11B7/005;G11B7/12;G11B7/24;G11B7/26;G11B20/14;G11B27/19;G11B27/24;G11B27/30;(IPC1-7):G11B7/24 |
主分类号 |
G11B7/007 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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