Device and method employing dual target auto exposure

A device comprising: an illumination subsystem operative for projecting an illumination pattern in accordance with a duty cycle having alternating illuminated periods and unilluminated periods; an aiming subsystem operative for projecting an aiming pattern; an imaging subsystem comprising an image s...

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Bibliographic Details
Main Authors Meier, Timothy P, Deloge, Stephen P
Format Patent
LanguageEnglish
French
German
Published 26.12.2018
Subjects
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:A device comprising: an illumination subsystem operative for projecting an illumination pattern in accordance with a duty cycle having alternating illuminated periods and unilluminated periods; an aiming subsystem operative for projecting an aiming pattern; an imaging subsystem comprising an image sensor array; a memory; and a processor, the memory including program code, the memory and the program code configured to, with the processor, cause the device to at least: acquire a first plurality of images based on a first control parameter, wherein the first control parameter comprises a first exposure period; acquire a second plurality of images based on a second control parameter that has a value that is different from the first control parameter, wherein the second control parameter comprises a second exposure period and wherein a quantity of images in the first plurality of images is different than a quantity of images in the second plurality of images; and attempt to decode a decodable indicia utilizing one or more images of the first plurality of images and the second plurality of images; wherein: the first exposure period overlaps at least a portion of an illuminated period and the second exposure period occurs during an unilluminated period.
Bibliography:Application Number: EP20120185991