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AssigneePanasonic Corporation
InventorsDaiji Ido, Takao Yamaguchi, Junichi Sato, Tomoaki Itoh
Estimating the term…
According to the media server 100 and the network control apparatus 200, upon distributing a plurality of media data to the media receiving apparatuses 400 having different transmission rates by broadcasting or multicasting, the distribution precedence is attached by associating the program control information and the media data. The distribution precedence attached to the program control information is set same as or lower than the distribution precedence of all media data included in the program concerned. Then, depending on the distribution precedence, the transmission possible media data and the program only are selectively distributed. The program control information relating to the program that includes the receivable media data by the media receiving terminal apparatus 400 only is selected and received. This way, the receivable media data is distributed depending on the transmission environment of the media receiving apparatus. It is possible to prevent the media receiving apparatus selecting the invalid program.
A media distribution apparatus configured to distribute a plurality of media data items using a base station, comprising:
A method in a distribution apparatus for distributing a plurality of media data items using a base station, the method comprising:
Dependencies are inferred from the claim text.
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Server components or server architectures: secondary servers, e.g. proxy server, cable television Head-end
Media network packet handling: at the source
Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs: for generating or…
Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth;…: channel…
About 1 year 2 months of term left · ends 13 Dec 2027 (estimated)
The present invention relates to the media distribution apparatus, the media receiving apparatus, the media distribution method, and the media receiving method, for distributing various kinds of media data.
A technology called SMIL (Synchronized Multimedia Integration Language) is a method conventionally known for integrating the content that includes text, still image, video, and audio, and for describing the spatial and time arrangements; and it is standardized by 3WC (World Wide Web Consortium).
SMIL is the description language similar to the hypertext description language HTML becoming widespread via the Internet at present; and yet it is a preferred description language for distributing the multimedia data that includes a video.
FIG. 1 is a block diagram showing the configuration of the conventional media data distribution system;
FIG. 2 is a drawing showing the example of description of the conventional SMIL file;
FIG. 3 is a drawing showing the configuration of the whole system including the media server, the network control section, and the media receiving terminal apparatuses according to one embodiment of the present invention;
Hereinafter, the embodiment of the present invention is explained with reference to the drawings.
In the present embodiment, the SDP (Session Description Protocol) data, the SAP (Session Announcement Protocol) data, and the SMIL data are used as the program control information; and the text data, the JPEG (still image) data, the audio data, and the video data are used as the media data.
The SDP and SAP are the technologies specified by IETF (Internet Engineering Task Force); and the SMIL is the technology specified by W3C. The SDP describes a control information such as port number for transmitting the media data classification and the media data included in a program.