Bar code reader for reading both one dimensional and two dimensional symbologies with programmable resolution
作者： Jerome Swartz , Duanfeng He , Joseph Katz , Yajun Li , Eugene Joseph
DOI:
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摘要: A plurality of the areas differing light reflectivity a bar code symbol (34) or like are simultaneously illuminated using, for example, beam laser (22) that has an elongate cross-section. The is swept over to be read in direction transverse elongated dimension region (78) so two-dimensional area (42) time. reflected sensed by 1D CCD array (50). microprocessor (52) within scanner provides visual feedback aid user aligning device, and also selectable aspect ratio image, image resolution size, illumination, pixel size. All these options may programmed (52), enabling device large variety symbols.
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