发明授权
- 专利标题: Apparatus for checking the authenticity of value documents
- 专利标题(中): 检查价值文件真实性的设备
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申请号: US13700297申请日: 2011-05-26
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公开(公告)号: US08917386B2公开(公告)日: 2014-12-23
- 发明人: Norbert Holl , Dieter Stein , Shanchuan Su
- 申请人: Norbert Holl , Dieter Stein , Shanchuan Su
- 申请人地址: DE Munich
- 专利权人: Giesecke & Devrient GmbH
- 当前专利权人: Giesecke & Devrient GmbH
- 当前专利权人地址: DE Munich
- 代理机构: Workman Nydegger
- 优先权: DE102010021803 20100527
- 国际申请: PCT/EP2011/002615 WO 20110526
- 国际公布: WO2011/147575 WO 20111201
- 主分类号: G01J1/42
- IPC分类号: G01J1/42
摘要:
Testing the authenticity of a valuable document, whereby at least one intensity distribution of electromagnetic radiation passing through the valuable document in the dark field is detected in a spatially resolved manner and a spatially resolved dark field characteristic is determined therefrom. The actual authenticity test is then performed by a procedure in which selected test partial regions of the valuable document are assigned respectively to one of a plurality of suspicion classes, an interconnection region is formed from substantially interconnected test partial regions that were assigned to at least one specific suspicion class, and the valuable document, depending on the form and/or position of the interconnection region, is assigned to one of at least two authenticity categories which is linked to the at least one specific suspicion class.