发明名称 |
Optical recording medium, optical recording medium manufacturing apparatus, and optical recording medium manufacturing method |
摘要 |
<p>In an optical recording medium 10 comprising groove tracks 11 including a first area Ba for recording record information and a second area Ca in which predetermined data is formed as embossed pit rows 19 and a readout of other data overwritten and recorded on said embossed pit rows 19 is prevented, and land tracks 12 formed between the adjacent groove tracks 11, a depth Ed and a duty of the embossed pit rows 19 are set so that a radial push-pull signal in the first area and a radial push-pull signal in the second area become the substantially same level. <IMAGE></p> |
申请公布号 |
EP1202256(A2) |
申请公布日期 |
2002.05.02 |
申请号 |
EP20010309124 |
申请日期 |
2001.10.26 |
申请人 |
PIONEER CORPORATION |
发明人 |
YAMAGUCHI, ATSUSHI;KATO, MASAHIRO;MURAMATSU, EIJI |
分类号 |
G11B7/007;G11B7/013;G11B7/09;G11B7/24;G11B7/24085;G11B7/26;G11B20/12;(IPC1-7):G11B7/007 |
主分类号 |
G11B7/007 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|