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    • 3. 发明授权
    • Enhanced error handling apparatus, method, and program product for
barcode readers
    • 用于条形码读取器的增强型错误处理装置,方法和程序产品
    • US5959282A
    • 1999-09-28
    • US631232
    • 1996-04-12
    • Ichiro Tabuchi
    • Ichiro Tabuchi
    • G06K7/10G06K7/14
    • G06K7/1473G06K7/14
    • When a decoding unit 6 fails in reading bar code information, a control unit 5 writes a corresponding error code into a ring table in the storage unit 4. In an error analyzing mode, the control unit 5 causes a measurement to automatically end when the decoding unit fails to read bar code information after the same bar code information is read a preset number of times or more, when the same bar code as that previously read is read and then bar code information different from that read by the preceding reading operation is read, or when a specific read error occurs. The indicator unit 7 indicates a number of the operations of reading bar code information and a read rate by changes of light colors emitted from light emission diodes of two colors, in a second normal measuring mode, and first and second test modes.
    • 当解码单元6读取条形码信息失败时,控制单元5将相应的错误代码写入到存储单元4中的环形表中。在错误分析模式中,当解码时,控制单元5使测量自动结束 当读取相同的条形码信息读取预设次数或更多次之后,当读取与先前读取的相同的条形码时,单位未能读取条形码信息,然后读取与通过前一读取操作读取的条形码信息不同的条形码信息 ,或者当发生特定的读取错误时。 指示器单元7指示通过在第二正常测量模式和第一和第二测试模式中从两种颜色的发光二极管发射的光颜色的变化来读取条形码信息和读取速率的操作的数量。