| 发明名称 |
Video disk, recording apparatus of video disk, and its reproducing apparatus |
| 摘要 |
A disk medium is a video disk, being an optical recording medium possessing concentric or spiral tracks, in which one track is divided into P sectors, and group mark signals are recorded in every Q sectors.
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| 申请公布号 |
US5675694(A) |
申请公布日期 |
1997.10.07 |
| 申请号 |
US19930172569 |
申请日期 |
1993.12.22 |
| 申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NAKAJIMA, TAKESHI;FURUMIYA, SHIGERU;INOUE, TAKASHI;TAKEMURA, YOSHINARI |
| 分类号 |
G11B7/007;G11B19/28;G11B20/12;G11B27/034;G11B27/10;G11B27/30;H04N5/783;H04N5/85;H04N5/926;(IPC1-7):H04N5/95;H04N5/781 |
主分类号 |
G11B7/007 |
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