Error correction in macro bar code symbols
    2.
    发明授权
    Error correction in macro bar code symbols 有权
    宏条形码符号纠错

    公开(公告)号:US06651893B2

    公开(公告)日:2003-11-25

    申请号:US09468185

    申请日:1999-12-21

    IPC分类号: G06K1906

    CPC分类号: G06K7/1473 G06K7/14

    摘要: A data encoding/decoding scheme includes a plurality of bar code symbols each carrying a portion of the data in which improved error correction capabilities are incorporated. According to one aspect, once data codewords have been derived to form the symbols, a first set of data correction elements are derived from a first field, then a second set of error correction elements are derived from the data elements and the first set of error correction elements using a second, wider field.

    摘要翻译: 数据编码/解码方案包括多个条形码符号,每个条形码符号携带改进的纠错能力的一部分数据。 根据一个方面,一旦数据码字被导出以形成符号,则从第一场导出第一组数据校正元件,然后从数据元素导出第二组误差校正元件,并从第一组误差 校正元件使用第二个较宽的场。