| 摘要 |
PURPOSE: A barcode generating method, a method for determining the validity of a barcode, a barcode generating device thereof, and a system including the same are provided to prevent the duplication of the barcode by generating a barcode generation time information. CONSTITUTION: A display displays a barcode in response to an output signal of a barcode generator. A capture device(32) captures the barcode displayed on the display. A decoding module(36) decodes the captured barcode to extract the data. A decrypting module(38) decrypts the extracted data. A validity determining module(40) determines the validity of the barcode based on generation time information included in the decrypted data. [Reference numerals] (32) Capture device; (36) Decoding module; (38) Decrypting module; (40) Validity determining module; (42) Control module; (44) Memory |
