A system for decoding data, such as travel and traffic information, configured in data blocks embedded in an electromagnetic signal, such as a broadcasted radio signal, has been developed. The system includes a method and receiver for decoding the data with a background tuner in a manner that does not...http://www.google.com/patents/US20050037721?utm_source=gb-gplus-sharePatent US20050037721 - Receiver system for decoding data embedded in an electromagnetic signal
