Television – Receiver circuitry – Demodulator
Patent
1996-08-30
1998-09-29
Peng, John K.
Television
Receiver circuitry
Demodulator
348663, 348726, 375321, H04N 5213
Patent
active
058152202
ABSTRACT:
A digital sampling and separation unit (12) for a television receiver (10) of a composite video signal, such as an NTSC signal, which has a color subcarrier. The video signal is sampled at a frequency selected in accordance with the invention. This frequency provides samples having a definite and repeating phase relationship with the subcarrier signal. (FIG. 4). As a result, phase reference values can be used to convert the samples into correct color difference values.
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Donaldson Richard L.
Kesterson James C.
Peng John K.
Reed Julie L.
Reed, Jr. James
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