Digital processing of PAL color television signals in the form o

Details Digital processing of PAL color television signals in the form o Digital processing of PAL color television signals in the form o

1975-12-23

1977-09-27

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

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358 13, 358 31, H04N 932, H04N 939

Patent

active

040515168

ABSTRACT:
PAL color television signals are processed in the form of a luminance signal Y and a composite chrominance signal consisting alternately of U + V on one line and U - V on the next. The composite chrominace signal is sampled at a frequency substantially equal to the PAL color subcarrier frequency and the luminance signal is sampled at the sub-Nyquist frequency of twice the color subcarrier frequency. Comb filters are included to remove undesired aliasing effects. The signals can be received in Y, U and V form or in encoded PAL form.

REFERENCES:
patent: 3267211 (1966-08-01), Melchior
patent: 3858240 (1974-12-01), Golding et al.
Patchett, "Color Television . . . PAL System," pp. 154-157, Norman Price (Publishers) Ltd., London, 1968.

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