Circuitry and processes carried out thereby are disclosed for implementing simple single tuner set top box decoders which do not require a separate tuner for an out of band management and control channel. Removable smart card conditional access circuitry and replaceable modules having decoding circuitry...http://www.google.de/patents/US20040181800?utm_source=gb-gplus-sharePatent US20040181800 - Thin DOCSIS in-band management for interactive HFC service delivery
