发明授权
- 专利标题: Workpiece authentication based upon one or more workpiece images
- 专利标题(中): 基于一个或多个工件图像的工件认证
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申请号: US09719430申请日: 2000-04-19
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公开(公告)号: US07035428B1公开(公告)日: 2006-04-25
- 发明人: Joshua R. Smith
- 申请人: Joshua R. Smith
- 申请人地址: US MA Cambridge
- 专利权人: The Escher Group, Ltd.
- 当前专利权人: The Escher Group, Ltd.
- 当前专利权人地址: US MA Cambridge
- 代理机构: Cesari and McKenna, LLP
- 国际申请: PCT/US00/10535 WO 20000419
- 国际公布: WO00/65541 WO 20001102
- 主分类号: G06K9/00
- IPC分类号: G06K9/00
摘要:
A workpiece authentication technique is provided. The technique bases workpiece authentication upon intrinsic physical characteristics of the workpiece, including one or more images of topographical appearance of at least one portion of the workpiece.
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