Invention Grant
- Patent Title: Method and apparatus for identifying a product
- Patent Title (中): 用于识别产品的方法和装置
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Application No.: US12735092Application Date: 2008-12-18
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Publication No.: US09589227B2Publication Date: 2017-03-07
- Inventor: Uwe Beck , Andreas Hertwig , Dirk Hönig , Ralph Domnick
- Applicant: Uwe Beck , Andreas Hertwig , Dirk Hönig , Ralph Domnick
- Applicant Address: DE Berlin
- Assignee: BAM Bundesanstalt Für Materialforschung Und-Prüfung
- Current Assignee: BAM Bundesanstalt Für Materialforschung Und-Prüfung
- Current Assignee Address: DE Berlin
- Agency: Dicke, Billig & Czaja, PLLC
- Priority: DE102007063415 20071218
- International Application: PCT/EP2008/011101 WO 20081218
- International Announcement: WO2009/077208 WO 20090625
- Main IPC: G06F17/00
- IPC: G06F17/00 ; G06K19/14 ; G07D7/00 ; G07D7/12

Abstract:
The present invention relates to a method and a corresponding apparatus for identifying a product (1) or information relating to the product (1). In the method, a concealed code on the product (1) is identified, wherein the code is given by a set of ellipsometric parameters, and the method comprises the following steps of: measuring ellipsometric variables for at least one defined point (8) on a surface (9) of the product (1), comparing the measured ellipsometric variables with at least one reference code, and determining a match between the measured ellipsometric variables and the reference code or one of the reference codes or determining a mismatch with each reference code.
Public/Granted literature
- US20110095080A1 METHOD AND APPARATUS FOR IDENTIFYING A PRODUCT Public/Granted day:2011-04-28
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