发明名称 |
Spare area with a predetermined capacity for a detective sector allocated in each zone |
摘要 |
In a rewritable optical recording medium, a recording surface is divided into a plurality of zones by setting pitch intervals in the radial direction to be constant and a data area and a spare area for a defective sector are allocated in each zone. As for a capacity of the spare area in each zone, a predetermined total capacity of spare areas is allocated so that a spare ratio K=D1/D2 of a capacity D2 of the spare areas for a capacity D1 of the data areas becomes almost the same in the zones.
|
申请公布号 |
US6631106(B1) |
申请公布日期 |
2003.10.07 |
申请号 |
US19990246638 |
申请日期 |
1999.02.08 |
申请人 |
FUJITSU LIMITED;SONY CORPORATION |
发明人 |
NUMATA TAKEHIKO;MORIBE MINEO;TAKEUCHI ATSUSHI;CHIBA TERUO |
分类号 |
G11B20/10;G11B5/012;G11B7/00;G11B7/24;G11B20/12;G11B20/18;(IPC1-7):G11B7/00 |
主分类号 |
G11B20/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|