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    • 2. 发明授权
    • High speed scan bar code reader which can read more than one type of bar
code
    • 高速扫描条码阅读器,可读取多种类型的条形码
    • US5414252A
    • 1995-05-09
    • US833493
    • 1992-02-10
    • Ichiro ShinodaTomoyuki KashiwazakiAkira OkawadoKazumasa MoriyaShinichi SatoMotohiko ItohMitsuo WatanabeHiroaki Kawai
    • Ichiro ShinodaTomoyuki KashiwazakiAkira OkawadoKazumasa MoriyaShinichi SatoMotohiko ItohMitsuo WatanabeHiroaki Kawai
    • G06K7/14G06K7/10
    • G06K7/1491G06K7/14G06K7/1486
    • A bar code reader using a high speed scanner, containing: a scanning unit scanning a surface on which a bar code is printed; a bar width detecting unit successively detecting widths of bars; a bar width storing unit storing the widths; an address generating unit generating an address of the bar width storing unit at which each of the widths is to be stored; a fast screening unit determining whether a set of widths successively detected by the bar width detecting unit satisfies a predetermined condition for the set of widths constituting a complete bar code; and a bar code decoding unit reading a set of successive widths from the generated address, and decoding the bar code determined by the complete bar code detecting unit. A type of bar code detecting unit detecting a type of bar code constituted by the detected widths, and an address & type storing unit storing the detected type of bar code, together with information on the generated addresses for the widths of the bar code, may be inserted. The bar code decoding unit contains specific type decoding units for respectively decoding types of bar codes. The bar code decoding unit reads the stored widths from the addresses indicated by the information stored in the address & type storing unit, and decodes the bar code using one of the specific type decoding unit corresponding to the type stored in the address & type storing unit together with the above information.
    • 一种使用高速扫描器的条形码阅读器,包括:扫描单元,扫描其上印有条形码的表面; 条宽检测单元,连续地检测条的宽度; 存储宽度的条宽存储单元; 产生要存储每个宽度的条宽存储单元的地址的地址产生单元; 快速筛选单元确定由条宽检测单元连续检测到的一组宽度是否满足构成完整条形码的宽度的一组宽度的预定条件; 以及条形码解码单元,从所生成的地址读取一组相继的宽度,并解码由完整的条形码检测单元确定的条形码。 一种条形码检测单元检测由检测到的宽度构成的条形码类型,以及存储检测到的条形码类型的地址和类型存储单元以及关于条形码宽度的生成地址的信息。 被插入。 条形码解码单元包含用于分别解码条形码类型的特定类型解码单元。 条形码解码单元从存储在地址和类型存储单元中的信息所指示的地址中读取存储的宽度,并且使用与存储在地址和类型存储单元中的类型对应的特定类型解码单元之一对条形码进行解码 以及上述信息。