STREAM DATA PROCESSING SYSTEM AND LIMITING METHOD FOR STREAM DATA

摘要

PROBLEM TO BE SOLVED: To provide a system suitable for limiting the processing of contents with a lot of unspecified parties especially in digital broadcasting or the like by minutely controlling a limit in the handling of stream data. SOLUTION: In the packet header part of a stream outputted from a data output system 301, field information or area information corresponding to digital contents contained there is embedded. Based on the area information or field information embedded in the header part of the data packet, a data processing system 401 does not limit the entire stream as a unit but limits possibility in partial processing corresponding to the contents of these stream data or the like. Thus, the contents handlable for each system on the side of reception can be minutely controlled without performing control for changing the stream to be transmitted according to the branch structure of a title.