| 摘要 |
The invention concerns a method and a device for filtering useful sections of a digitally transmitted data flow. The method consists in adding at the top fragments (15) corresponding each to part of a section (13) located in a single packet a fragment header (16) indicating the position of said fragment in the section, the number of the filter having filtered the section, and the PID having processed the packet containing the fragment, all the useful fragments being sent to the user at the end of each packet so as not to require temporary storage in the filtering unit. The invention generally concerns the field of reception of digital data transmitted over a telecommunication network and using packet coding consisting of a set of data routed in blocks, and more particularly broadcasts transmitted according to MPEG 2 protocol.
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