Indicia reading apparatus having sequential row exposure termination times

摘要

There is set forth herein an indicia reading apparatus having an image sensor array including a plurality of pixels arranged in a plurality of rows and columns of pixels. The image sensor array can include a frame exposure period in which a certain subsequent and further subsequent row exposure periods have common exposure initiation times and sequential exposure termination times. An indicia reading apparatus can be controlled so that a light source bank of an illumination pattern assembly for projecting an illumination pattern is energized during an illumination period that overlaps a frame exposure period. The apparatus can be further controlled so that an illumination period terminates at or prior to an exposure termination time of the certain row.

主权项

1. An imaging apparatus comprising:
an imaging assembly having an image sensor array and a lens assembly for focusing an image onto the image sensor array, the image sensor array comprising pixels arranged in a plurality of rows and columns of pixels, the imaging assembly defining a field of view; an illumination assembly for projecting an illumination pattern during an illumination period, wherein at least a portion of the illumination pattern is projected in an area within the field of view; wherein a plurality of pixels of the image sensor array, the plurality of pixels comprising a certain row, are exposed during a frame exposure period in which each row of the plurality of pixels has a common row exposure initiation time and a different, sequential exposure termination time; wherein the imaging apparatus is operative to process for attempting to decode decodable indicia image data representative of light incident on the image sensor array during the frame exposure period; and wherein the illumination period and the frame exposure period are coordinated so that at least a portion of the illumination period occurs during the frame exposure period and further so that the illumination period ends at a time in common with or earlier than an exposure termination time of the certain row.