초록 ▼

A hand-held bar code reader includes a laser scanning module and a two dimensional image sensor and processing for reading a bar code. The laser scanner assists the 2D image processing by providing information on location, type, range, reflectivity, and presence of bar code for 2D reading. Additiona

A hand-held bar code reader includes a laser scanning module and a two dimensional image sensor and processing for reading a bar code. The laser scanner assists the 2D image processing by providing information on location, type, range, reflectivity, and presence of bar code for 2D reading. Additionally, the 2D imaging reading operation is improved by using the laser scan as a spotter beam for aiming.

대표청구항 ▼

[ What is claimed is:] [1.]1. A reader for reading a bar code symbol and the like, said reader having a two dimensional image capture module for capturing two dimensional images, said image capture module having a field of view defining an imaged area, and a processor for processing said images, sai

[ What is claimed is:] [1.]1. A reader for reading a bar code symbol and the like, said reader having a two dimensional image capture module for capturing two dimensional images, said image capture module having a field of view defining an imaged area, and a processor for processing said images, said reader comprising:(a) a two dimensional image sensor;(b) memory;(c) a microprocessor;(d) a laser scan line generator for generating a variable width laser scan line, wherein said scan line is at least partially contained within said field of view of said image capture module;(e) wherein said scan line provides a visible indication of the field of view;(f) a collection sensor which produces an electrical signal in response to reflected light from said laser scan line; and(g) signal processing circuitry for processing said electrical signal, wherein the processed electrical signal is further processed by said microprocessor,(h) wherein said laser scan line is turned off during image capture of images used to decode bar code symbols.