Method for Two-Channel Coding of a Message

Abstract

A method for encoding a message including the steps of performing two-channel encoding of the message into a robust string and a fragile string; transmitting the robust string through a fragile channel; and transmitting the fragile string though a robust channel (FIG. 6). Before the step of performing two-channel encoding of the message into a robust string and a fragile string the number of characters in the message may be reduced to reduce the size of the encode message. The two channel encoding step includes the steps of creating the robust string by encoding the message using the codeword dictionary; and creating the fragile string by encoding the message using a compression algorithm. The robust string may be transmitted by embedding the robust string in an image. The fragile string may be transmitted by embedding the fragile string in a 2-D bar code.

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