Apparatus for displaying bar codes from light emitting display surfaces
    1.
    发明授权
    Apparatus for displaying bar codes from light emitting display surfaces 有权
    用于从发光显示表面显示条形码的装置

    公开(公告)号:US08807432B2

    公开(公告)日:2014-08-19

    申请号:US14050675

    申请日:2013-10-10

    Abstract: Disclosed is a method of and apparatus for managing and redeeming bar-coded coupons that are displayed from a light emitting display surface of an information storage and display device, such as a cell-phone, a smart-phone, or a data communication device. The linear (1D) bar code symbols, associated with bar-coded store coupons, are displayed on the light emitting display surface using in a pulse code modulation (PCM) format, wherein a substantial portion of the pixels on the light emitting display surface are energized and de-energized to emit red-wavelengths of light energy, at a rate which temporally corresponds to the spatial frequency of the bars and spaces of the linear bar code symbol, so that a laser scanning bar code symbol reading device is capable of reading the PCM formatted bar code symbol displayed from the light emitting display surface.

    Abstract translation: 公开了一种用于管理和兑换从诸如手机,智能电话或数据通信设备的信息存储和显示设备的发光显示表面显示的条形码优惠券的方法和装置。 与条形码存储优惠券相关联的线性(1D)条形码符号以脉冲编码调制(PCM)格式显示在发光显示表面上,其中发光显示表面上的大部分像素是 通电和断电以以时间上对应于线性条形码符号的条和空间的空间频率的速率发射光能的红色波长,使得激光扫描条形码符号读取装置能够读取 从发光显示表面显示的PCM格式的条形码符号。

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