公开(公告)号：US5714747A

公开(公告)日：1998-02-03

申请号：US682176

申请日：1996-07-17

申请人： Bradford Drake West ,  Greg A. Burg ,  Steven James Adamson ,  Frederick Rockwell Chamberlain, IV ,  Tomasz Mark Jagielinski ,  Frederick John Jeffers ,  Robert Owen James ,  Neil Smith

发明人： Bradford Drake West ,  Greg A. Burg ,  Steven James Adamson ,  Frederick Rockwell Chamberlain, IV ,  Tomasz Mark Jagielinski ,  Frederick John Jeffers ,  Robert Owen James ,  Neil Smith

IPC分类号： G11B5/80 ,  G06K7/08 ,  G06K19/06 ,  G11B5/02

CPC分类号： G06K19/06196 ,  G06K7/084

摘要： A credit and access control card and reader system comprising: a magnetically encodable card comprising a body having upper and lower surfaces and side and end edges, the body being formed of plastic material having magnetic particles uniformly dispersed throughout the plastic material; and a reader having a magneto resistive (MR) head for reading the magnetically encodable card as it is moved past the MR head.

摘要翻译： 一种信用和访问控制卡和读取器系统，包括：可编码卡，包括具有上表面和下表面的主体以及侧边和端边缘，所述主体由具有均匀分散在整个塑料材料中的磁性颗粒的塑料材料形成; 以及具有磁阻（MR）磁头的读取器，用于当磁可编码卡被移动经过磁头时读取磁头。

公开(公告)号：US06221296B1

公开(公告)日：2001-04-24

申请号：US08418731

申请日：1995-04-07

申请人： Robert Owen James ,  Mary-Irene Elizabeth Condo ,  Bradford Drake West ,  Lawrence Allen Rowley

发明人： Robert Owen James ,  Mary-Irene Elizabeth Condo ,  Bradford Drake West ,  Lawrence Allen Rowley

IPC分类号： B29B732

CPC分类号： G06K19/06196

摘要： A method of making a magnetically encodable card which comprises forming a dispersion of ferromagnetic particles in an organic fluid medium, forming a composite by intimately combining the dispersion with a thermoplastic resin plasticized by the organic fluid medium and forming the composite into an encodable card.

摘要翻译： 一种制造磁编码卡的方法，包括在有机流体介质中形成铁磁颗粒的分散体，通过将分散体与由有机流体介质增塑的热塑性树脂紧密结合形成复合材料，并将复合材料形成可编码卡。