公开(公告)号：US4086527A

公开(公告)日：1978-04-25

申请号：US669759

申请日：1976-03-24

申请人： Robert G. Cadot

发明人： Robert G. Cadot

IPC分类号： B07C5/344 ,  G01R33/00 ,  G07D5/00 ,  G07D5/08 ,  G07D7/00 ,  G07D7/02 ,  G07F7/04

CPC分类号： G07D5/08

摘要： An authentication method for standardized objects, such as in particular monetary articles, in which an object to be authenticated is introduced into the field located between an emitter and a receiver delivering at least an alternative physical quantity, whose quantitative alteration produced by the presence of said object in said field is measured, the result being compared with a reference value pre-stored in a memory and distinctive of the object to authenticate, whereby, within a tolerance approximation, an authentication criterion is deducted, method characterized by the fact that said alteration is measured at different frequencies, that corresponding alterations are successively measured and then simultaneously compared with said respective reference quantities.

摘要翻译： 用于诸如特别是货币条款的标准化对象的认证方法，其中待认证的对象被引入位于发射器和接收器之间的领域中，该至少一个替代物理量由其存在而产生的定量改变 测量所述场中的对象，将结果与预先存储在存储器中的参考值进行比较，并且对象进行鉴别，由此在公差近似中扣除认证标准，其特征在于所述变更 在不同频率下测量，相应的变化被连续测量，然后与所述各个参考量同时比较。