Patent ID: 8387881

Claim:
An indicia reading terminal comprising: an illumination subsystem operative for projecting an illumination pattern; an imaging subsystem comprising an image sensor array and an imaging optics assembly operative for focusing an image onto the image sensor array; a housing encapsulating the illumination subsystem and the imaging subsystem; and a memory for storing a frame of image data, said frame of image data representing light incident on said image sensor array; in which the indicia reading terminal is operative to activate a screen reading mode in which the indicia reading terminal, in response to activation of a trigger signal, activates an illuminated exposure and an unilluminated exposure, in which during the illuminated exposure, the illumination subsystem projects the illumination pattern while the imaging subsystem exposes an illuminated frame of image data for a first duration of time, and during the unilluminated exposure, the illumination subsystem refrains from projecting the illumination pattern while the imaging subsystem exposes an unilluminated frame of image data for a second duration of time, and the illumination subsystem projects the illumination pattern after the imaging subsystem exposes the unilluminated frame of image data and prior to the imaging subsystem making a subsequent exposure; the indicia reading terminal further comprising a processor operative for addressing said memory, wherein said processor is operative to attempt to decode a decodable indicia represented in at least one of the illuminated frame of image data or the unilluminated frame of image data.