Patent ID: 6029193
Filing Date: 2000-02-22
Classification: H04H,H04N

Abstract:
A data broadcast method for a television broadcast with which a data program is multiplexed into a normal television program for broadcasting, comprising:setting a common host item for a plurality of data programs to create a hierarchical structure; andmultiplexing, as additional information, (i) a program description including a location information that designates a broadcast channel and broadcast time of each data program related to its identifier, and information about a hierarchical relationship between each data program and the host item, and (ii) a node description including information about a hierarchical relationship between each data program and the host item related to its identifier, into a data program, followed by broadcasting, wherein a plurality of program descriptions and node descriptions are divided into a plurality of groups, according to a distance between nodes in the hierarchical structure and information about to which group each program description and each node description belong, is multiplexed into a data program.