Pulse or digital communications – Synchronizers – Frequency or phase control using synchronizing signal
Patent
1995-03-03
1997-01-28
Bocure, Tesfaldet
Pulse or digital communications
Synchronizers
Frequency or phase control using synchronizing signal
348500, 375340, H04L 700
Patent
active
055984444
ABSTRACT:
A sync detecting apparatus and method thereof in an error correction technique employed for transmitting highly-reliable information even under poor channel environment in a transmission system of a high definition television (HDTV) includes a first sync detector for comparing a signal transmitted from a receiver with a previously-recognized reference signal to detect a sync signal and rotated amount thereof, a rotation compensator for compensating the rotated amount of the signal detected in the first sync detector, and a second sync detector for accurately detecting the synchronization in accordance with periodicity of the sync signal in case an error included an output signal from the rotation compensator, thereby effectively detecting the sync signal from the signal received into the receiver of the HDTV for performing interleave/deinterleave of the error correction technique as well as compensating the rotation of the signal.
REFERENCES:
patent: 4680766 (1987-07-01), Wilkinson
patent: 5049830 (1991-09-01), Yoshida
patent: 5200811 (1993-04-01), Cho
patent: 5339337 (1994-08-01), Levine
patent: 5398260 (1995-03-01), Min
patent: 5400366 (1995-03-01), Iwamatsu
patent: 5422916 (1995-06-01), Nall
Bocure Tesfaldet
Hyundai Electronics Industries Co,. Ltd.
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