发明名称 |
Optical Disk Manufacturing Method and Device, Optical Disk, and Reproduction Method Thereof |
摘要 |
Optical discs are adapted to be used with a light beam having a wavelength of 405 nm for recording or reproducing data. Error correcting blocks for recording BMID including copy protection key information are defined on optical discs (1) dedicated to data reproduction. A data string of BMID to be recorded has 64 bytes. An error correcting block is constituted by 304 columns of error correcting code words (LDC). A BMID data string of 64 bytes is inserted to predetermined 64 error correcting code words (LDC) of a block (304 columns of error correcting code words). The total code length of the predetermined 64 error correcting code words (LDC) is 248 bytes, of which a predetermined byte (symbol) is replaced by a predetermined byte (symbol) of the BMID data string.
|
申请公布号 |
US2009010117(A1) |
申请公布日期 |
2009.01.08 |
申请号 |
US20060814751 |
申请日期 |
2006.01.31 |
申请人 |
SONY CORPORATION |
发明人 |
KOBAYASHI SHOEI;KOBAYASHI SEIJI;YAMAGAMI TAMOTSU |
分类号 |
G11B20/10 |
主分类号 |
G11B20/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|