Pulse or digital communications – Synchronizers – Frequency or phase control using synchronizing signal
Patent
1995-09-29
1998-05-19
Ghebretinsae, Temesghen
Pulse or digital communications
Synchronizers
Frequency or phase control using synchronizing signal
370514, H04L 700
Patent
active
057546053
ABSTRACT:
The disclosed communication unit includes synchronization circuitry having a sync sequence match detector and a decode detector. Upon matching a received sync sequence or word with a known sync sequence, the sync word (or, e.g., the block containing the received sync sequence) is decoded to determine whether the block is correctable (or more generally, whether the signal quality is above a threshold). When a match is found and the sequence/block is correctable, an appropriate sync indication is outputted. Additional information, such as color code matching of consecutive sync words, may also be used before determining synchronization has been achieved.
REFERENCES:
patent: 5321521 (1994-06-01), Nomizu
patent: 5511099 (1996-04-01), Ko et al.
patent: 5550833 (1996-08-01), Fujisawa
Chong William Chee-Foon
Golford Bruce H.
Yang Gordon Guowen
Ghebretinsae Temesghen
Motorola
Wood J. Ray
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