An apparatus and method thereof for communicating a scramble key (for descrambling scrambled digital signals) and service information (used in an electronic programming guide) to an intelligent transceiver (e.g., a set-top box) using a bi-directional digital broadcast system. The intelligent transceiver...http://www.google.es/patents/US6757909?utm_source=gb-gplus-sharePatente US6757909 - Internet set-top box having an in-band tuner and cable modem
Internet set-top box having an in-band tuner and cable modem