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1. 发明授权

US5965214A Methods for coding magnetic tags 失效
标题翻译：磁性标签编码方法
公开(公告)号：US5965214A
公开(公告)日：1999-10-12
申请号：US844885
申请日：1997-04-22
申请人： Michael David Crossfield , Christopher John Coggill
发明人： Michael David Crossfield , Christopher John Coggill
IPC分类号： G01V15/00 , G08B13/24 , H01F1/00
CPC分类号： G08B13/2408 , G01V15/00 , G08B13/2437 , G08B13/244
摘要： A method of fabricating a tag or marker carrying or intended to carry a magnetic code is described. The method comprises applying a particulate magnetic material to a surface region of the tag by a printing or transfer process. The particulate magnetic material is generally deposited in the form of discrete elements or indicia. A tag thus produced can be coded magnetically by magnetising the elements or indicia, e.g. with a permanent magnet. This provides a very versatile and relatively rapid means of generating coded tags or labels virtually without limit on the variety of codes which may be adopted.
摘要翻译：描述了制造携带或意图携带磁性代码的标签或标记的方法。该方法包括通过印刷或转印工艺将颗粒状磁性材料施加到标签的表面区域。颗粒磁性材料通常以离散元件或标记的形式沉积。这样产生的标签可以通过磁化元件或标记来进行磁性编码。用永久磁铁。这提供了一种非常通用且相对快速的方式来生成编码标签或标签，实际上不限制可以采用的各种代码。

2. 发明授权

US06204766B1 Multi-layer magnetic tag 失效
标题翻译：多层磁性标签
公开(公告)号：US06204766B1
公开(公告)日：2001-03-20
申请号：US09269350
申请日：1999-05-21
申请人： Michael David Crossfield , Christopher John Coggill
发明人： Michael David Crossfield , Christopher John Coggill
IPC分类号： G08B1314
CPC分类号： G01V15/00
摘要： A magnetic marker or tag is disclosed which comprises (a) a first magnetic material characterised by high permeability, low coercivity and a non-linear B-H characteristic; and (b) a second magnetic material which is capable of being permanently magnetised, said first and second magnetic materials being superimposed one on the other and advantageously being substantially coterminous. The second magnetic material is preferably of medium coercivity. Selected regions of said second magnetic material can carry magnetisation such as to magnetically divide the first magnetic material into a series of magnetically discrete zones, the length of said magnetically discrete zones and/or the lengths of said magnetised regions (“gaps”) of said second material constituting elements of a code.
摘要翻译：公开了一种磁性标记或标签，其包括（a）以高磁导率，低矫顽力和非线性B-H特征为特征的第一磁性材料; 和（b）能够被永久磁化的第二磁性材料，所述第一和第二磁性材料彼此叠加并且有利地基本上相邻。第二磁性材料优选为中等矫顽力。所述第二磁性材料的选定区域可以承载磁化，以将第一磁性材料磁分割成一系列磁性离散区域，所述磁性离散区域的长度和/或所述磁性区域的长度（“间隙”）构成代码的第二材料构成要素。

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