Pulse or digital communications – Synchronizers – Frequency or phase control using synchronizing signal
Reexamination Certificate
2003-02-19
2008-07-22
Fan, Chieh M. (Department: 2611)
Pulse or digital communications
Synchronizers
Frequency or phase control using synchronizing signal
C375S136000, C375S147000, C375S316000, C375S354000, C375S130000, C370S320000, C370S335000, C370S342000, C370S441000
Reexamination Certificate
active
07403583
ABSTRACT:
A system and method for using Psuedo-Noise (PN) phase to determine frame start of a data frame is provided. The system and method includes at least two PN component codes, wherein the at least two PN component codes are relatively prime. A received PN composite encoded signal is correlated with at least one of the PN component codes and a frame start is determined. With reference to frame start at least one training sequence bit is located. The training bits may be overwritten on FEC encoded frame data such that a FEC decoder may be used to recover data overwritten by the training sequence bit(s).
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Bagley Zachary C.
Bruening Kent R.
Mower Vaughn L.
Fan Chieh M.
Harrington & Smith PC
L-3 Communications Corporation
Lee Siu M
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