A multi-point to point communication system. The system includes a distribution network between a head end terminal and a plurality of remote units, the head end terminal for downstream transmission of downstream control data and downstream telephony information in a first frequency bandwidth over the...http://www.google.es/patents/US6292651?utm_source=gb-gplus-sharePatente US6292651 - Communication system with multicarrier transport distribution network between a head end terminal and remote units
Communication system with multicarrier transport distribution network ...