Dynamically Creating Barcode Images in RAM
Original Publication Date: 1987-Apr-01
Included in the Prior Art Database: 2005-Feb-01
The stored data necessary to produce interleaved 2 of 5 barcode characters, where the high-order numeric character is represented by the five bars and the low-order numeric character is represented by the five spaces, is reduced using the following technique. The numeric data is packed two characters per byte (high-order character in the high-order nibble, low-order character in the low-order nibble). The wide/narrow pattern for both the bars and spaces of interleaved 2 of 5 is the same as the industrial 2 of 5. The industrial 2 of 5 character images are used to build the interleaved 2 of 5 images in scratch RAM (random-access memory).