发明名称 REGISTRATIEDRAGER WAARIN INFORMATIE IS AANGEBRACHT IN EEN OPTISCH UITLEESBARE INFORMATIESTRUKTUUR, ALSMEDE UITLEESINRICHTING DAARVOOR.
摘要 A record carrier is disclosed having an optically readable information structure comprising trackwise arranged information areas, as well as an apparatus for reading said record carrier. By using two mutually perpendicularly polarized beams components for reading and by giving the information areas of adjacent track portions a different geometries such that areas of one geometry can be read in an optimum manner by only one of the beam components and is virtually not observed by the other beam component, the track distance can be reduced without increasing the crosstalk, so that the information content of the record carrier is increased.
申请公布号 NL7906576(A) 申请公布日期 1981.03.05
申请号 NL19790006576 申请日期 1979.09.03
申请人 N.V. PHILIPS' GLOEILAMPENFABRIEKEN TE EINDHOVEN. 发明人
分类号 G11B7/00;G11B7/005;G11B7/007;G11B7/013;G11B7/09;G11B7/12;G11B7/24;(IPC1-7):G11B7/08 主分类号 G11B7/00
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