Patent ID: 6493877
Filing Date: 2002-12-10
Classification: H04H,H04N

Abstract:
A digital data distribution system, comprising:a broadcasting station for broadcasting a broadcast signal repetitively modulated with a digital information signal, the digital information signal including a file group including body files having at least one of audio, graphics and text information, one of the body files in the file group including an index file having text information for briefly describing the contents of each of the remaining body files in the file group; and an end system including: a receiver for receiving the broadcast signal from the broadcasting station and demodulating the digital information signal from the broadcast signal to generate a digital bit stream, a user interface for enabling a user to select at least one of the body files for storage as a selected body file, a memory having a data capacity substantially smaller than the amount of data in the file group, a controller for identifying the selected body file in the digital bit stream and causing the selected body file to be stored in the memory; and a reproduction section for reproducing the at least one of the audio, graphics and text information included in the selected body file stored in the memory.