Method of representing data codes with equal width bar and device for reading same
    1.
    发明授权
    Method of representing data codes with equal width bar and device for reading same 失效
    用等宽宽带代表数据代码的方法及其读取装置

    公开(公告)号:US3701886A

    公开(公告)日:1972-10-31

    申请号:US3701886D

    申请日:1970-12-30

    Applicant: IBM

    Inventor: JONES JOHN EARLE

    CPC classification number: G06K7/0166

    Abstract: Binary coded data is represented on a record medium by alternate regions of differing characteristics. Adjacent regions form equal width pairs, thus the total width of the representations is not dependent on code content. Machine reading of the code is accomplished by timing a scan of the representation in the adjacent regions of the pairs of regions of alternate characteristics and comparing the scan times in both regions of each pair to determine which region in each pair is larger to thereby assign a binary one or zero value to the encoded binary bit represented by the pair.

    Abstract translation: 二进制编码数据在记录介质上由不同特征的交替区域表示。 相邻区域形成相等的宽度对,因此表示的总宽度不依赖于代码内容。 代码的机器读取是通过对交替特征区域对中的相邻区域中的表示的扫描进行定时来完成的,并且比较每对中的两个区域中的扫描时间,以确定每对中的哪个区域更大,从而分配 对于由该对表示的编码的二进制位,二进制一个或零值。

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