发明名称 Layer jump control apparatus of multilayer disk and method thereof
摘要 The present invention relates to a layer jump control apparatus of a multilayer disk and a method thereof, when a layer jump request between record layers of the multilayer disk is inputted from outside, a sled, a tracking, and a focusing servo are converted into inactive state, a microcomputer sets an operation voltage of an inner focus lens of an optical pickup to allotted ports in order to transfer the focus lens vertically to the layer jump request direction. The present invention is capable of jumping accurately and rapidly on a request layer of the multilayer disk by jumping on a target layer of the multilayer disk accurately by converting the focusing servo into active state at the jump position of the focus lens on the basis of a FOK signal and a FZC signal detected in accordance with transferring operation, and adjusting vertical transferring speed of an optical pickup by considering minus offset of the optical pickup.
申请公布号 US2001030916(A1) 申请公布日期 2001.10.18
申请号 US20010809324 申请日期 2001.03.16
申请人 LEE JONG HYEOK 发明人 LEE JONG HYEOK
分类号 G11B7/00;G11B7/085;(IPC1-7):G11B7/00 主分类号 G11B7/00
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