公开(公告)号：US20160034722A1

公开(公告)日：2016-02-04

申请号：US14447798

申请日：2014-07-31

Applicant: SYMBOL TECHNOLOGIES, INC.

Inventor： EUGENE B. JOSEPH ,  DUANFENG HE

IPC: G06K7/00

CPC classification number: G06K7/0095 ,  G06K7/10712 ,  G06K7/1096 ,  H04N1/00029 ,  H04N1/4097

Abstract: A method of operating a workstation includes capturing multiple monitoring images each being captured with the imaging sensor while the illumination light source is energized during one of multiple short exposure-time-periods, and detecting a checkup-condition that includes analyzing the multiple monitoring images to determine the presence of any adverse feature on workstation's window. Each of the multiple short exposure-time-periods is shorter than four times of a threshold exposure-time-period but no shorter than 25% of the threshold exposure-time-period. The threshold exposure-time-period is a minimal exposure-time-period needed for the imaging sensor to capture recognizable patterns of a barcode that is in directing contacting with the window while the illumination light source is energized.

Abstract translation: 操作工作站的方法包括：在多个短曝光时间段之一期间，在照明光源被激发期间捕获每个被成像传感器捕获的多个监视图像，并且检测包括分析多个监视图像的检验条件 确定工作站窗口中存在任何不利特征。 多个短曝光时间段中的每一个短于阈值曝光时间段的四倍，但不小于阈值曝光时间段的25％。 阈值曝光时间段是成像传感器捕获在照明光源被通电时正在与窗口接触的条形码的可识别图案所需的最小曝光时间段。