Pulse or digital communications – Synchronizers – Frequency or phase control using synchronizing signal
Patent
1994-03-28
1997-01-07
Coles, Sr., Edward L.
Pulse or digital communications
Synchronizers
Frequency or phase control using synchronizing signal
375366, 375354, 370509, H04L 700
Patent
active
055925189
ABSTRACT:
A high speed parallel frame synchronizer provides high speed frame synchronization functions utilizing parallel processing techniques implemented with commercially available components. Serial input data is demultiplexed to an N bit wide word at a rate of 1/N of the input clock frequency. A total of N parallel correlators are used to detect the frame synchronization pattern. Outputs of the correlators are arbitrated using a priority encoder which provides synchronization information to the frame synchronizer. One embodiment of this invention utilizes 4N correlators to simultaneously provide for synchronization of true/inverted and forward/reverse data generated by real-time or playback data sources.
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Davis Richard M.
Genrich Thad J.
Hall Mark W.
Coles Sr. Edward L.
Denson-Low Wanda K.
Esposo Allan A.
Hughes Electronics
Sales Michael W.
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