Apparatus and method for limiting jitter caused by pointer movement while mapping one telecommunications signal into another such signal
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United States of America Patent
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Dec 5, 1995
Grant Date -
N/A
app pub date -
Jun 3, 1994
filing date -
Jun 3, 1994
priority date (Note) -
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Abstract
Jitter is limited in the mapping of a first telecommunications signal into a second telecommunications signal, by, upon receiving an indication that the payload pointer of the second telecommunications signal is moving in a first direction, generating a compensative payload pointer movement of the first telecommunications signal in a second direction which is opposite the first direction. The invention has particular application to the mapping of three E3 telecommunications signals which are in the format of a TUG-3 signal into an STS-3C SONET telecommunications signal in the STM-1 VC-4 format. When the STS-3C signal requires a pointer movement due to frequency compensation in the system, a compensative pointer movement at the TUG-3 level avoids eight units of jitter in the TUG-3 signal which could adversely affect system performance.
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