| 摘要 |
<p>To provide interactivity, a public wireless packet data network is combined with a broadband digital broadcast network. In the preferred embodiment, the broadcast network utilizes multiple transmitters (TX) at separately located sites simultaneously broadcasting the same multi-channel, multi-program signal. Broadcast waves from the transmitters propagate throughout substantially overlapping portions of the service area. Customer premises receiving systems (30) including a receiving antenna (38) and one or more digital entertainment terminals. The terminal includes a channel selector and digital receiver for capturing a digital transport stream from a selected channel. A processor converts selected program information from the transport stream for presentation, e.g. via a TV set (75). The terminal also includes a CPU controlling the operation of the channel selector and the processor in response to user inputs. The CPU also communicates signalling information for interactive services via an RF packet data modem included in the terminal and the public wireless packet data network. In addition to the signalling for interactive services, the packet data network provides transport for data communication between other data services.</p> |
