发明授权
- 专利标题： System and method of reading bar code with two scanning beams
- 专利标题（中）： 用两个扫描光束读取条形码的系统和方法
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申请号： US09598702申请日： 2000-06-21
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公开(公告)号： US06619548B1公开(公告)日： 2003-09-16
- 发明人: Motohiko Itoh , Shinichi Satoh , Mitsuo Watanabe , Hiroaki Kawai , Isao Iwaguchi
- 申请人： Motohiko Itoh , Shinichi Satoh , Mitsuo Watanabe , Hiroaki Kawai , Isao Iwaguchi
- 优先权： JP9-019286 19970131
- 主分类号： G06K710
- IPC分类号： G06K710
摘要：
A method of the invention reads a bar code based on bar-code data obtained by scanning the bar code with light. The method includes the steps of a) obtaining bar-code data, b) obtaining a sum of bar-data widths with respect to a predetermined number of bar data provided in at least one of a preceding portion and a following portion of the bar-code data, c) repeating the steps a) and b) once to obtain another sum, and d) making a comparison of the sum with another sum. The methods further includes a step of accepting the bar-code data as valid data when a result of the comparison satisfies a predetermined condition.
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