| 发明名称 |
METHOD FOR DETECTING SIGNAL RECORDED ON OPTICAL RECORDING MEDIUM |
| 摘要 |
In an edge detection method, a tightest data portion for forming a tightest pit pattern therein is provided in an area in the front of an effective data portion where an information pit pattern is formed, and the threshold voltage is established on the basis of the tightest pit pattern formed in the tightest data portion.
|
| 申请公布号 |
CA2097576(A1) |
申请公布日期 |
1993.12.24 |
| 申请号 |
CA19932097576 |
申请日期 |
1993.06.02 |
| 申请人 |
SONY CORPORATION |
发明人 |
NAKAYAMA, HIROSHI;KAGAWA, MASAKI;YAMASAKI, YOSHIMORI |
| 分类号 |
G11B7/00;G11B7/005;G11B11/105;G11B20/10;G11B23/30;(IPC1-7):G11B7/08 |
主分类号 |
G11B7/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
