An interactive television information system having a node in television communication between a source of television information services and a plurality of home interface controllers. Each subscriber television is associated with a home interface controller. The home interface controllers receive the...http://www.google.es/patents/US5557316?utm_source=gb-gplus-sharePatente US5557316 - System for distributing broadcast television services identically on a first bandwidth portion of a plurality of express trunks and interactive services over a second bandwidth portion of each express trunk on a subscriber demand basis
System for distributing broadcast television services identically on a first ...
