Pulse or digital communications – Synchronizers – Frequency or phase control using synchronizing signal
Reexamination Certificate
2004-01-30
2008-10-07
Lugo, David B (Department: 2611)
Pulse or digital communications
Synchronizers
Frequency or phase control using synchronizing signal
C375S371000
Reexamination Certificate
active
07433438
ABSTRACT:
A vestigial side band (VSB) synchronization (sync) signal detection circuit and method of generating a VSB sync signal is described. The circuit may include means for generating a first control signal related to sync signal generation, based on receipt of a selected one of an input first data signal and input second data signal, and means for generating a position signal containing information regarding positions of a next field sync and segment sync signals. The circuit may also include a correlator for generating a sign signal to determine a sign of the field sync signal, and a generator for generating a plurality of distinct types of sync signals based on the control signal, position signal and sign signal.
REFERENCES:
patent: 6504578 (2003-01-01), Gu
patent: 2002/0024995 (2002-02-01), Kim
patent: 2001-0064521 (2001-07-01), None
Korean Office Action with translation dated Dec. 14, 2004.
Kim Dong-Jo
Paik Won-Kyu
Harness & Dickey & Pierce P.L.C.
Lugo David B
Samsung Electronics Co,. Ltd.
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