Patent ID: 7555768
Filing Date: 2009-06-30
Classification: H04N

Abstract:
1. An apparatus for delivering digital services, the apparatus comprising: a broadcast data source configured to provide digital broadcast data; a user data source configured to provide digital user requested data; a transmitter configured to transmit the digital broadcast data over an over-the-air data delivery system comprising at least a portion of an existing over-the-air analog broadcast system, the digital broadcast data being transmitted on a broadcast channel within a spectrum historically dedicated to analog broadcast signals; and the transmitter further configured to transmit the digital user requested data over the over-the-air data delivery system, the digital user requested data being transmitted on a user channel within the spectrum historically dedicated to analog broadcast signals; and the transmitter further configured to transmit one or more of the digital broadcast data and the digital user requested data on a first plurality of channels and a second plurality of channels, the first plurality of channels directionally transmitted in a first transmission pattern, the second plurality of channels directionally transmitted in a second transmission pattern, the second plurality of channels different at least in part from the first plurality of channels.