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1. 发明授权

US4703469A Optical data recording using radiation of different characteristics 失效
标题翻译：光学数据记录采用不同特征的辐射
公开(公告)号：US4703469A
公开(公告)日：1987-10-27
申请号：US681992
申请日：1985-02-11
申请人： Robert M. Pettigrew , Keith Gardner , Robert J. Longman
发明人： Robert M. Pettigrew , Keith Gardner , Robert J. Longman
IPC分类号： G11B7/00 , G11B7/004 , G11B7/007 , G11B7/013 , G11B7/08 , G11B7/24085 , G11B3/70
CPC分类号： G11B7/24085 , G11B7/007 , G11B7/08
摘要： Optical data storage members in which the guard bands present between data-carrying tracks of conventional data storage members are used to carry information recorded in a manner which avoids the danger of cross-talk between adjacent tracks. One preferred arrangement consists of an optical data storage member comprising an optically recordable surface having a plurality of tracks in which information may be recorded in analogue or digital form, the tracks being of a first type in which the material constituting the track is sensitive to radiation of a first predetermined characteristic and a second type in which the material thereof is sensitive to radiation of a second predetermined characteristic, wherein tracks of the first type alternate across the surface of the second type. The tracks may be constituted by a surface region (1,2,3,4,5) carrying a plurality of closely spaced grooves (11,12,13,14,15), the grooves of one track being orthogonally directed with respect to those of its adjacent tracks. The predetermined radiation characteristic can be the polarization state of the incident radiation.
摘要翻译： PCT No.PCT / GB84 / 00123 Sec。 371日期1985年2月11日 102（e）1985年2月11日PCT PCT。1984年4月9日PCT公布。出版物WO84 / 03986 日期：1984年10月11日。其中保存频带存在于常规数据存储构件的数据携带轨道之间的光学数据存储构件用于承载以避免相邻轨道之间串扰的危险的方式记录的信息。一个优选的布置包括光学数据存储构件，其包括具有多个轨道的光学可记录表面，其中可以以模拟或数字形式记录信息，轨道是构成轨道的材料对辐射敏感的第一类型第一预定特性和第二类型，其中其材料对第二预定特性的辐射敏感，其中第一类型的轨迹跨越第二类型的表面交替。轨道可以由承载多个紧密间隔的槽（11,12,13,14,15）的表面区域（1,2,3,4,5）构成，一个轨道的槽相对于那些相邻的轨道。预定的辐射特性可以是入射辐射的偏振状态。

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