Loading patent…
AssigneeSymbol Technologies, Inc.
InventorsEugene Joseph, Yajun Li, Duanfeng He, Joseph Katz, Jerome Swartz
Estimating the term…
A plurality of the areas of differing light reflectivity of a bar code symbol or the like are simultaneously illuminated using, for example, a beam of light that has an elongate cross-section. The light beam is swept over the symbol to be read in a direction transverse to the elongated dimension of the illuminated region so that a two-dimensional area of the symbol is illuminated over time. The reflected light is sensed by a 1D CCD array. A microprocessor within the scanner provides visual feedback to aid a user in aligning the device, and also provides for a selectable aspect ratio for the image, a selectable image resolution and size, a selectable aspect ratio of the illumination, and a selectable pixel size. All of these options may be programmed within the microprocessor, enabling the device to read a large variety of two-dimensional symbols.
An optical reader for reading an indicia having areas of differing light reflectivity, comprising:
A method of reading an indicia having areas of differing light reflectivity, comprising the steps of:
Dependencies are inferred from the claim text.