Digital television synchronization system and method

Details Digital television synchronization system and method Digital television synchronization system and method

1992-06-05

1995-05-16

Groody, James J.

Television

Format

Including pulse modulation of video signal

348495, 348537, 348528, 348682, H04N 724

Patent

active

054165245

ABSTRACT:
A digital television signal includes data sent as multilevel symbols in successive data segments each including a synchronizing sync character. The detected synchronizing sync character produces a characteristic having two opposite polarity levels separated by a zero reference level, with the levels occurring at successive sampling points of the television signal, and a detection signal that has a peak occurring in time coincidence with the zero reference level. The detection signal controls sampling of the received television signal. The gain of the received signal is controlled by an AGC circuit that also responds to the detection signal.

REFERENCES:
patent: 4989219 (1991-01-01), Gerdes et al.

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