Information provisioning apparatus and information provisioning method
AssigneePanasonic Corporation
InventorKoichi Emura
Life of this patent
Estimating the term…
Abstract
Information provisioning includes acquiring one of an audio and a video elementary stream of content that is composed of a plurality of segments, and actual data of metadata that includes information related to the content. The metadata is divided into metadata processing units (MPU) corresponding to segments subjected to processing in the plurality of segments. A transport stream of a MPEG-2 system is generated that includes packetized elementary stream (PES) packets acquired by packetizing the segments of the data stream and metadata PES packets acquired by packetizing at least one MPU.
Claims18
An information provisioning apparatus, comprising:
- an acquirer that acquires an audio elementary stream and a video elementary stream of content that is composed of a plurality of segments, and metadata that includes information describing the content;
- a unitizer that divides the metadata into a plurality of metadata processing units, wherein a metadata processing unit (MPU) indicates a unit of the metadata and corresponds to a segment of the content, the MPU and the segment are configured to be processed for performing partial execution of the metadata in synchronization with the segment of the content;
- and
- a multiplexer that generates a transport stream of a MPEG-2 system by multiplexing audio packetized elementary stream (PES) packets acquired by packetizing the audio elementary stream, video PES packets acquired by packetizing the video elementary stream, and metadata PES packets acquired by packetizing the MPU,
- wherein the MPU identifies a processing start time of the segment of the content for performing the partial execution of the metadata in synchronization with the segment of the content.
An information provisioning method, comprising:
- acquiring, by executing a set of instructions by a computer, an audio elementary stream and a video elementary stream of content that is composed of a plurality of segments, and metadata that includes information describing the content;
- dividing, by executing the set of instructions by the computer, the metadata into a plurality of metadata processing units, wherein a metadata processing unit (MPU) indicates a unit of the metadata and corresponds to a segment of the content, and the MPU and the segment are configured to be processed for performing partial execution of the metadata in synchronization with the segment of the content;
- and
- generating, by executing the set of instructions by the computer, a multiplexed transport stream of a MPEG-2 system by multiplexing audio packetized elementary stream (PES) packets acquired by packetizing the audio elementary stream, video PES packets acquired by packetizing the video elementary stream, and metadata PES packets acquired by packetizing the MPU,
- wherein the MPU identifies a processing start time of the segment of the content for performing the partial execution of the metadata in synchronization with the segment of the content.
Dependencies are inferred from the claim text.