发明名称 |
Encodable tag with radio frequency readout |
摘要 |
A programmable tag for being readable remotely and in a manner which does not require that the tag be held in a particular orientation, includes a first layer of material with electron spin resonance absorption, a second layer of hard magnetic material, and a third layer of soft permeable magnetic material. The second layer and third layer are in close proximity to the first layer. The second layer and the third layer impose a magnetic bias field on the first layer.
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申请公布号 |
US5554974(A) |
申请公布日期 |
1996.09.10 |
申请号 |
US19940344808 |
申请日期 |
1994.11.23 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BRADY, MICHAEL J.;CHAUDHARI, PRAVEEN;GAMBINO, RICHARD J.;HEINRICH, HARLEY K.;MOSKOWITZ, PAUL A.;VON GUTFELD, ROBERT J. |
分类号 |
B42D15/10;G06K7/08;G06K19/06;G06K19/067;G08B13/24;H04Q9/00;(IPC1-7):G08B13/14 |
主分类号 |
B42D15/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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