Packet filtering
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United States of America Patent
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Nov 18, 2003
Grant Date -
N/A
app pub date -
Jul 11, 2000
filing date -
Nov 17, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A method of filtering a packet data stream as transmitted in a digital audiovisual transmission system characterized in that transport packet data is filtered at a first stage by a digital filter according to the characteristics of the transport packet header, selected filtered data being then passed directly to a memory element within the receiver/decoder. In a second aspect, the method comprises filtering a packet data stream characterized in that transport packet data is filtered at a first stage by a first digital filter according to the characteristics of the transport packet header, selected filtered data from the paload corresponding to a continuous flux of data then being passed to a second digital filter for a second stage of filtering.
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