Abstract: Systems and methods for recognition of encoded information on documents are disclosed. According to an aspect, a system includes a document reader configured to read encoded information from a document, and to output an electrical signal representative of the encoded information. The system also includes signal conditioning modules that are each configured to receive the electrical signal, and to condition the received electrical signal differently for outputting a plurality of conditioned electrical signals. Further, the system includes an information recognition module configured to analyze each of the conditioned electrical signals and to select one of the conditioned electrical signals for use in recognizing the encoded information.

Abstract: Systems and methods for recognition of encoded information on documents are disclosed. According to an aspect, a system includes a document reader configured to read encoded information from a document, and to output an electrical signal representative of the encoded information. The system also includes signal conditioning modules that are each configured to receive the electrical signal, and to condition the received electrical signal differently for outputting a plurality of conditioned electrical signals. Further, the system includes an information recognition module configured to analyze each of the conditioned electrical signals and to select one of the conditioned electrical signals for use in recognizing the encoded information.

Abstract: A method of marking products purchased through a self-service checkout terminal includes scanning a product to be purchased into a computer and issuing a tamper resistant label from a printer at the self-service checkout terminal. The tamper resistant label includes a visual indicator including product data section, and a radio frequency identifier including product data portion. The method also includes adhesively bonding the tamper resistant label to the product scanned into the computer such that removal of the tamper resistant label from the product destroys the product data section of the visual indicator and the radio frequency identifier. Finally, the method includes scanning for each of the visual indicator and the radio frequency identifier after the product passes through the self-service checkout terminal to verify that the product was scanned into the computer.