Patent ID: 8873618

Claim:
A communications system comprising: a first device comprising a first display, a first processor configured to generate at least one optically machine-readable coded image according to a selectable encoding scheme from among a plurality of different encoding schemes, and display the at least one optically machine-readable coded image on said first display, a first communications device coupled to said first processor; and a second device comprising a second camera configured to capture the at least one optically machine-readable coded image on said first display, a second communications device, and a second processor coupled to said second camera and said second communications device and configured to send a status message, via said second and first communications devices to said first processor, related to whether the captured at least one optically machine-readable coded image is decodable based upon a currently selected encoding scheme; said first processor being configured to select a new encoding scheme based upon the status message, and display at least one new optically machine-readable coded image according to the new encoding scheme on the first display, the at least one new optically machine-readable coded image including data from the at least one optically machine-readable coded image being resent if the status message indicates that the captured at least one optically machine-readable coded image is not decodable.