发明名称 |
A PLAYER WITH ROTATIONAL CONTROL FOR DOUBLE-SIDED OPTICAL DISCS |
摘要 |
A double-sided optical disc, such as a DVD-18 disc, is formed with data tracks on each layer. The tracks on one side are oriented along one spiral while the tracks on the other side are oriented along a different spiral, the two spirals being oriented in opposite directions as viewed normally from the respective sides. This allows data to be read by a player seamlessly from either side of the disc without changing the direction of rotation of the disc while the data is being read. The player determines whether a newly inserted disc is oriented properly and, if necessary, the direction of the disc rotation is reversed. |
申请公布号 |
WO2005052914(A2) |
申请公布日期 |
2005.06.09 |
申请号 |
WO2004US37440 |
申请日期 |
2004.11.09 |
申请人 |
WARNER HOME VIDEO INC. |
发明人 |
COOKSON, CHRISTOPHER, J.;OSTROVER, LEWIS, S. |
分类号 |
G11B;G11B5/09;G11B7/00;G11B7/005;G11B7/007;G11B7/24 |
主分类号 |
G11B |
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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