Contactless object authentication device for jewelry has circuit buried flush in cavity formed in surface of object being authenticated

• 收藏
• 分享

专利权人:

INFORMATION TECHNOLOGY DEVELOPMENT

发明人:

LAZZARI JEAN PIERRE

申请号：

FR19990002316

公开号：

FR2790121(A1)

申请日:

1999.02.19

申请国别(地区):

法国

年份:

2000

代理人:

摘要：

A stationary device uses a coil emitting of electromagnetic energy and receiving of information. A built-in circuit (100) includes an electromagnetic energy receiving coil. The circuit (100) is buried flush an open cavity (201) formed in a surface of the object authenticated. The built-in circuit (100) has a surface area of a tenth of a square millimeter.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/