Detection of periodic impairments in media streams
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United States of America Patent
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Mar 21, 2017
Grant Date -
Oct 1, 2015
app pub date -
Nov 2, 2012
filing date -
Nov 2, 2012
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Abstract
The invention relates to methods and systems for detecting periodic impairments of media streams of real-time communication sessions within a packet-switched network. The invention is performed in a passive monitoring system monitoring a plurality of media streams providing quality data records for each monitored media stream and for predefined time intervals. For each media stream a frequency distribution is generated, which is indicative of the number of good quality data records between two quality data records indicative of impairment. If a maximum exists in the media stream's frequency distribution for a given number of consecutive good quality data records, the stream is determined to be periodically impaired and said given number of consecutive good quality data records for which the maximum exists indicates the periodicity in the impairment of the media stream.
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