2D Barcode Readers
The features of barcode reader:
The barcode reader or the barcode scanner is a computer component useful for various printed bar-code numbers on different kind of surfaces. It confines the flatbed scanner consisting of light focus connected to the lens and photo conductor which help translate optical impulses into electrical readings. These readers accommodate the decoding circuitry, which analyses the barcode image data transported by the photo conductor. These contents are then sent across the scanner output port. The technology has distinguished characters which differentiate various types of readers. A pen type of barcode reader has the photodiode which is placed closely to the light source at the tip of pen. For reading the bar-codes from different surfaces, the waveform is decoded by the scanner like in the Morse code dots and dashes are decoded. The laser scanners have the similar kind of working process, which just differentiate it in regard to the light source. The laser beam has a typical reciprocating mirror or a rotating prism for scanning, which rotates the beam forth-and-back along the bar-code.
2D Symbols in Bar-code Reader systems:
There are industries or some institutions which require 2D symbols or the ones wishing to switch over from the linear bar codes to 2D, the innovative technology offers them with appropriate mechanism. These offer micro-scanned 2D images and verify the data matrix. The machine vision innovation has an innovative feature of high-speed intelligent cameras with all the features of full scale machine vision system. The intelligent cameras facilitate advanced inspection capabilities having the horsepower double to the conventional smart cameras hitherto in use by them. This helps to define a new level of capability and improved performance in the vision. The Camera-based 2D Imaging Scanners: This technological system is the refined form comes with the distinct quality feature. In the 2D imaging system, a small video camera is used for capturing bar-code images of the surface. Further in the process the bar-code, with the advanced digital image process system transforms the decoding. The technology of video camera is the same as is available in the CCD bar-code readers, which instead of a single row of sensors, comprises hundreds of the sensors. These sensors are arranged in two dimensional modes for generating the valid image.
Barcode Reader
| 