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    • 10. 发明申请
    • BAR CODE READER WITH DIGITIZER AND SEQUENCER
    • 条码读码器与数字和序列
    • WO1988004456A1
    • 1988-06-16
    • PCT/US1986002717
    • 1986-12-12
    • METROLOGIC INSTRUMENTS, INC.KNOWLES, C., HarryKOLIS, George
    • METROLOGIC INSTRUMENTS, INC.
    • G06K07/10
    • G06K7/14G06K7/0166
    • A digitizer/sequencer device (10) for the processing of scanner digital input data including bar code data. The device is flexible and universal in nature in that it can provide inputs to both a fixed program decoder (20) for the decoding of the Universal Product Code (UPC) code as well as a programmable processor (26) which can decode UPC as well as a variety of many other bar codes. Further, the device can handle inputs from various types of scanners (11) including high-speed counter top, hand-held scanners and light pen scanners and magnetic card readers, which provide input data over a wide range of frequencies. A large number of individual frequencies are made available in the device. One of these frequencies may be optimally selected by the programmable processor (26) to provide an internal clock for the device and a clock frequency for the digitizer counters (S clock) and another of these frequencies may be selected to provide a clock frequency (M clock) for the hard wired decoder. A sequencing means (28) is used to control the operation of the device so that it steps through a predetermined number of steps after the occurrence of each transition in the incoming bar code data.
    • 一种用于处理包括条形码数据的扫描仪数字输入数据的数字化仪/定序器装置(10)。 该设备本质上是灵活和通用的,因为它可以为固定程序解码器(20)提供输入,用于解码通用产品代码(UPC)代码,以及可编程处理器(26),其也可以解码UPC 作为各种许多其他条形码。 此外,该装置可以处理来自各种类型的扫描器(11)的输入,包括高频台面,手持式扫描器和光笔扫描器以及磁卡读取器,其在宽范围的频率上提供输入数据。 设备中有大量的单独频率可用。 这些频率中的一个可以由可编程处理器(26)进行最佳选择,以为器件提供内部时钟,并且可以选择数字转换器计数器(S时钟)的时钟频率,并且可以选择这些频率中的另一个以提供时钟频率 时钟)为硬连线解码器。 排序装置(28)用于控制装置的操作,使得它在进入条形码数据中的每个转换发生之后步进预定数量的步骤。