发明公开
- 专利标题： Credit card display system
- 专利标题（中）： Kreditkarten-Anzeigesystem。
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申请号： EP93307770.3申请日： 1993-09-30
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公开(公告)号： EP0592155A1公开(公告)日： 1994-04-13
- 发明人: Blonder, Greg E.
- 申请人： AT&T Corp.
- 申请人地址： 32 Avenue of the Americas New York, NY 10013-2412 US
- 专利权人： AT&T Corp.
- 当前专利权人： AT&T Corp.
- 当前专利权人地址： 32 Avenue of the Americas New York, NY 10013-2412 US
- 代理机构： Buckley, Christopher Simon Thirsk
- 优先权： US959303 19921009
- 主分类号： G06K7/08
- IPC分类号： G06K7/08 ; G06K7/06 ; G07F7/02 ; G07F7/08 ; G06K19/07
摘要：
A card-oriented transaction system (10) is provided with the capability of communicating with the card user. Specifically, the system is provided with a user card (11) having a surface region (13) capable of receiving an erasable visual image, a card reader (14) capable of detecting the card and writing on the display surface, and a data processor (16) adapted for providing information to be written on the display surface. In a preferred embodiment, the erasable visual display surface (13) is a plastic film embedding droplets of oil containing reflecting magnetic flakes. The film can be laminated onto the user card and reset by a magnetic field in the plane of the major surface. Writing can be effected by application of a magnetic field perpendicular to the surface.
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