发明名称 |
Multilayer record carrier with shifted recording start and stop positions |
摘要 |
The present invention relates to a multilayer record carrier, to a recording apparatus and to a method of recording on such a multilayer record carrier, and to a manufacturing method, wherein start and stop positions of recording areas at header portions (H) are shifted in a lower recording layer ( 8 ) by a predetermined distance (Delta) such that recording and reading in/from the lower layer ( 8 ) is not affected by a variation in the transmittivity of the upper layer ( 6 ) at the transitions between the recording areas (R) and the header portions. The shifting may be obtained by extending gap portions or adding mirror areas to the header portions (H).
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申请公布号 |
US6904011(B2) |
申请公布日期 |
2005.06.07 |
申请号 |
US20020101309 |
申请日期 |
2002.03.19 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
VAN WOUDENBERG ROEL;WIERENGA HARM ALBERT |
分类号 |
G11B7/24;G11B7/00;G11B7/0045;G11B7/007;G11B7/26;(IPC1-7):G11B5/76 |
主分类号 |
G11B7/24 |
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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