Images, audio, biometric information, and other data is captured by a user device. The captured data is sent to a server that pre-processes and then decodes the captured data to identify its contents. Once identified, the captured data is associated with a function string that specifies a function and...http://www.google.co.uk/patents/US20050083413?utm_source=gb-gplus-sharePatent US20050083413 - Method, system, apparatus, and machine-readable medium for use in connection with a server that uses images or audio for initiating remote function calls
