LASER SCANNING SYSTEM AND SCANNING METHOD FOR READING BAR CODES

摘要

05/14/91 (D-DOC. 085) A system for reading bar code symbols or the like, having a scanner for generating a laser beam directed toward a target and producing a narrow first raster scanning pattern that enables the user to manually aim and direct the beam to the location desired by the user and a relatively wider second raster scanning pattern that sweeps an entire symbol to be read, and a detector for receiving reflected light from such symbol to produce electrical signals corresponding to data represented by such symbol. 57