发明名称 |
Composite electronic article surveillance, identification, and security marker assembly and system |
摘要 |
A composite marker providing electronic article surveillance (EAS), identification, and authentication. The marker preferably includes an EAS detection element which includes a low-coercive force, high-permeability ferromagnetic material, and an adjacent, remanently-magnetizable ferromagnetic material which, when magnetized, alters a characteristic response produced by the first material when in an interrogation zone of an associated EAS system, an intermediate layer containing UPC or similar optically-readable information and a substantially-transparent, optically-detectable security element overlying said intermediate layer and having means integrally associated therewith for thwarting counterfeiting or other unauthorized duplication.
|
申请公布号 |
US5477219(A) |
申请公布日期 |
1995.12.19 |
申请号 |
US19950414052 |
申请日期 |
1995.03.30 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
ZAREMBO, PETER J.;MARFORI, WALFREDO M. |
分类号 |
G08B13/24;(IPC1-7):G08B13/14 |
主分类号 |
G08B13/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|