发明名称 Optical record carrier.
摘要 <p>An inscribable record carrier (1) is described, which comprises a previously recorded servo-track structure provided with a recording layer. The contrast between the servo-tracks (3) provided with information areas and the intermediate tracks (5) is increased by combining wide tracks (20) with a white-writing recording layer (24) or by combining narrow servo-tracks (20) with a black-writing recording layer (21).</p>
申请公布号 EP0327172(A1) 申请公布日期 1989.08.09
申请号 EP19890200187 申请日期 1989.01.30
申请人 N.V. PHILIPS' GLOEILAMPENFABRIEKEN 发明人 VEENIS, AARTJE WILLEMINA;MIMNAGH, WINSLOW MICHAEL
分类号 G11B7/00;G11B7/004;G11B7/007;G11B7/013;G11B7/09;G11B7/095;G11B7/24 主分类号 G11B7/00
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