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    • 7. 发明授权
    • Optical mark recognition tabulation device
    • 光标识别设备
    • US07593685B1
    • 2009-09-22
    • US11422426
    • 2006-06-06
    • Richard C. Hedderich
    • Richard C. Hedderich
    • G09B3/00
    • G09B3/00G06Q10/087
    • An optical mark recognition tabulation device includes a guide channel including opposing integral sidewalls configured to laterally constrain a test sheet as the test sheet is fed past a set of optical sensors. The optical sensors are aligned with optical entry indicia on the test sheet to sense marks on the optical entry indicia as the test sheet is fed past the optical sensors. The optical mark recognition tabulation device further includes a recessed channel located along at least a substantial portion of a side of the guide channel. The optical mark recognition tabulation device further includes a spacer strip configured to be received within the recessed channel and effectively reduce the width of the guide channel such that the guide channel is reconfigured to laterally constrain a different size of test sheet when the spacer strip is received within the recessed channel.
    • 光学标记识别制图装置包括引导通道,该引导通道包括相对的整体侧壁,所述相对的整体侧壁被配置为当测试片材被馈送通过一组光学传感器时横向约束测试片材。 当测试片通过光学传感器时,光学传感器与测试片上的光学入口标记对准以感测光学入口标记上的标记。 光学标记识别制图装置还包括沿着引导通道的一侧的至少大部分的凹陷通道。 光学标记识别制版装置还包括间隔条,该间隔条被配置为容纳在凹陷通道内并且有效地减小引导通道的宽度,使得当间隔条被接收时导向通道被重新配置以横向约束不同尺寸的测试片 在凹槽内。