发明名称 |
Magneto-optical disc recording and reproducing system with level clamping |
摘要 |
A system of recording/reproducing data on and from a spiral or concentric track formed on a magneto-optical disc, in which a data recording area of the track is divided into a predetermined number of blocks. A reference data recording area is provided at a predetermined position of each of the blocks, in which continuous several bit data each of a high or low level is recorded, and, upon reproducing, a reproduced radio frequency signal is clamped at a signal level serving as a clamping level which is obtained by reproducing the data on the reference data recording area.
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申请公布号 |
US5684772(A) |
申请公布日期 |
1997.11.04 |
申请号 |
US19950468234 |
申请日期 |
1995.06.06 |
申请人 |
SONY CORPORATION |
发明人 |
YAMAGAMI, TAMOTSU;KAWASHIMA, TETSUJI |
分类号 |
G11B7/00;G11B7/005;G11B11/10;G11B11/105;G11B20/10;G11B20/12;G11B27/19;G11B27/30;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/00 |
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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