Patent ID: 6686880
Filing Date: 2004-02-03
Classification: H04H

Abstract:
A method of providing a response channel from a mobile platform in a digital broadcast system comprising:generating a message comprising a request for information from a mobile platform device and identification of at least a selected one of receivers in said digital broadcast system, said digital broadcast system being operable to transmit a broadcast data stream comprising a plurality of programs, said receivers being operable to playback a selected one of said programs; transmitting said message via said digital broadcast system by inserting said message into said broadcast data stream; receiving said message at said receivers in said digital broadcast system; generating a command signal at said selected receiver in response to said message; providing said command signal to a network on said mobile platform; transmitting said command signal to said mobile platform device via said network; generating a response signal from said mobile platform device comprising said information; and transmitting said response signal via a communication system different from said digital broadcast system.