Time-base corrector circuit capable of adding color burst signal

Details Time-base corrector circuit capable of adding color burst signal Time-base corrector circuit capable of adding color burst signal

1996-07-15

1999-07-20

Nguyen, Huy T.

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386 19, 386 8, 386 2, H04N 989

Patent

active

059266023

ABSTRACT:
A memory controller which controls writing/reading operation to/from a memory in a TBC circuit prohibits writing operation to the memory circuit in response to an activation of a frame grab signal after an A/D converted video signal for one frame is stored in the memory circuit. A color demodulator detects whether or not a color burst signal is added to a video signal input at the time at which the frame grab signal is activated, and the result of detection is held in a flip-flop circuit. In response to a signal from the flip-flop circuit, a color burst signal is added to a video signal output from an encoder.

REFERENCES:
patent: 4737861 (1988-04-01), Sekimoto
patent: 4774832 (1988-10-01), Hakamada et al.
patent: 5194964 (1993-03-01), Kawai

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