Patent ID: 6557171
Filing Date: 2003-04-29
Classification: H04H,H04N

Abstract:
A digital broadcast sending apparatus which sends a transport stream to a digital broadcast receiving apparatus, comprising:a presentation data storage means for storing a plurality of pieces of presentation data of a broadcast program, wherein each of the plurality of pieces of presentation data is either of video data, audio data or a combination of video data and audio data; a preselection control information storage means for storing preselection control information which is used by the digital broadcast receiving apparatus to receive instructions from a viewer concerning preselection of object programs, the preselection control information including: a first script which specifies a manipulation of the viewer performed to preselect an object program; and a second script which includes program identification information specifying the object program corresponding to the manipulation specified in the first script and includes an instruction to perform a process of preselecting the specified object program when the viewer performs the manipulation; a multiplexing control means for reading the plurality of pieces of presentation data from the presentation data storage means and the preselection control information corresponding to the plurality of pieces of presentation information from the preselection control information storage means, and multiplexing the read plurality of pieces of presentation data and the read preselection control information into the transport stream during a transmission period which is determined based on a broadcast time of the broadcast program; and a sending means for sending the transport stream in which the read plurality of pieces of presentation data and the read preselection control information are multiplexed.