Packet filtering
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United States of America Patent
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Oct 3, 2006
Issued Date -
N/A
app pub date -
Jul 26, 2002
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 (42) according to the characteristics of the transport packet header, selected filtered data being then passed directly to a memory element (44) 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 (42) according to the characteristics of the transport packet header, selected filtered data from the payload corresponding to a continuous flux of data then being passed to a second digital filter (45) for a second stage of filtering.
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