Pulse or digital communications – Synchronizers – Frequency or phase control using synchronizing signal
Patent
1995-11-29
1997-05-06
Chin, Stephen
Pulse or digital communications
Synchronizers
Frequency or phase control using synchronizing signal
370516, 375365, H04L 704
Patent
active
056278640
ABSTRACT:
A phase shift correcting apparatus of a sync detector in a satellite broadcasting reception system corrects a phase shift of 180.degree. which makes output data after demodulation be absolutely different from an original data such that 47 sync is phase-shifted by 180.degree. to be detected as B8 sync data. For this, the number of B8 data and 47 data of input data is counted in a comparator and a counter to determine whether the phase shift of 180.degree. occurs or not, and data involving the phase shift is converted to have a normal data value when it is determined that the phase shift occurs, thereby improving reliability of a satellite broadcasting receiver and solving the problem of the different data output.
REFERENCES:
patent: 4376306 (1983-03-01), Giusto
patent: 4414677 (1983-11-01), Ive et al.
patent: 4763339 (1988-08-01), Sutphin et al.
patent: 4965814 (1990-10-01), Yoshida et al.
patent: 5016206 (1991-05-01), Shinonaga
patent: 5101401 (1992-03-01), Suzuki et al.
patent: 5363417 (1994-11-01), Sempe
patent: 5519444 (1996-05-01), Ko et al.
Chin Stephen
LG Electronics Inc.
Roundtree Joseph
White John P.
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