The reading pen is a peripheral device for entering texts and barcodes. Reading pens for text capture are moved over the text to be captured for this purpose and can capture different fonts and font sizes in normal, bold and italic notation. The OCR software for optical character recognition that supports the reading pen can recognize a very large number of languages, including their special characters, which include Latin, Cyrillic, Hebrew and Greek characters.
The guidance direction with which the reading pen is guided over a text is not important, but the guidance speed and the recognition speed are specified. A reading process with a reading pen is triggered as soon as it is pressed onto the text; the reading process is terminated when the pen is lifted.
Bar code reader pens use light-emitting diodes that emit infrared light to diffusely illuminate the bar code. The reading pen is guided over the bar code and reflects the bar- gap pattern as brightness information, which is guided via a lens system to a photodetector. The downstream decoder decodes the bar code. Such barcode reading pens can easily decode twenty or more different barcodes. In addition, of course, the most important codes used in merchandise management and monetary transactions, such as the UPC code and the EAN code. These can be the same reading pens that are used for text capture.
Reading pens can be used not only for capturing text or barcodes, but are also useful for filling out forms or payment instructions. They can also be used to capture Internet addresses( URL) or transfer business cards to address books.