Pulse or digital communications – Synchronizers – Frequency or phase control using synchronizing signal
Patent
1996-01-11
1996-12-24
Kriess, Kevin A.
Pulse or digital communications
Synchronizers
Frequency or phase control using synchronizing signal
H04L 700
Patent
active
055880304
ABSTRACT:
In the system of the present invention, the system includes a pre-synchronizer to eliminate the need for examining every possible substring preceding the EOP (end of preamble) mark in order to detect the EOP. For the case where autocorrelation techniques are used to provide error synchronization error tolerance, this results in a much shorter EOP, since it is possible to find shorter EOPs which do not falsely synchronize prior to the arrival of the true EOP. In particular, the preamble is utilized to perform pre-synchronization. Once pre-synchronization has been achieved, the search for the EOP can be focused on a subset of all possible substrings as opposed to prior techniques which looked at all possible substrings. The resultant system solves the problem with less logic and more error tolerance.
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DeForest Marvin
Riggle C. M.
Kriess Kevin A.
Maxtor Corporation
Toplu Lucien
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