Patent ID: 7971227
Filing Date: 2011-06-28
Classification: H04H,H04N

Abstract:
1. A receiver in a digital broadcast system comprising: a memory device for storing content from a transmitted broadcast signal using said digital broadcast system, the content comprising data files, said data files each being partitioned into segments that are interspersed in said transmitted broadcast signal, said transmitted broadcast signal being provided with at least one header comprising information indicating the number of said segments that constitute at least one of said data files and information to identify each of said segments; a reception device for receiving said transmitted broadcast signal and processing said broadcast signal to obtain at least part of said content including said segments corresponding to at least one of said data files therein; and a processing device connected to said memory device and said reception device and being programmable to use said at least one header in said transmitted broadcast signal to determine the size of at least one section in said memory device to allocate for storing the data file, to store said segments corresponding to the data file in said allocated section, and to monitor the progress of the storage of said segments in said allocated section, said at least one header comprising data to indicate how much of said memory device needs to be allocated to store the data file; wherein said at least one header provides a unique identification code for each of said segments belonging to the data file and indicates in what order said segments are to appear in the data file for playback, said processing device being programmable to determine which of said segments in the data file have not been received and stored in said memory device; and wherein the data file is rebroadcast at least once, said processing device being operable to determine which of said segments corresponding to the data file have been stored and to store said segments that are rebroadcast if said segments are not yet stored in said memory device, and to discard said segments that are rebroadcast if said segments were previously stored in said memory device.