Color decoding

Details Color decoding Color decoding

1998-02-12

2000-05-16

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

Chrominance signal demodulator

348508, 348641, H04N 966

Patent

active

06064446&

ABSTRACT:
In a method of demodulating an analog chrominance signal (C), digital quadrature signals are generated (DPA, SIN ROM, COS ROM) for demodulating (MUL DAC U, MUL DAC V) the analog chrominance signal (C) to obtain analog demodulated color difference signals (U, V). A digital phase error signal is furnished (.SIGMA..DELTA.mod) from at least one (V) of the analog demodulated color difference signals (U, V). The digital phase error signal is digitally filtered (DLF) to obtain a phase control signal (K) for the digital quadrature signals generation (DPA, SIN ROM, COS ROM).

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