Indicia reading apparatus having sequential row exposure termination times
First Claim
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.
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Accused Products
Abstract
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.
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Citations
20 Claims
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1. An imaging apparatus comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification