Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1981-09-04
1984-08-14
Psitos, Aristotelis M.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358 11, H04N 9491, H04N 942
Patent
active
044660227
ABSTRACT:
A color video signal reproducing apparatus comprises a reproducing circuit for picking up and reproducing a recorded signal from a recording medium in which a carrier chrominance signal and a color burst signal within a PAL system color video signal are converted into low frequencies and recorded together with a luminance signal, a frequency converting circuit for respectively frequency converting a reproduced carrier chrominance signal and a reproduced color burst signal converted into a low frequency region and obtained from the reproducing circuit into a chrominance sub-carrier frequency of an NTSC system, a gate circuit for passing signals other than a carrier chrominance signal within a horizontal scanning period in which a color difference signal (R-Y) of the carrier chrominance signal and the color burst signal obtained from the frequency converting circuit is inverted, a supplementing circuit for delaying a carrier chrominance signal of one horizontal scanning period before a horizontal scanning period from which a carrier chrominance signal within an output signal of the gate circuit is eliminated, and supplementing the delayed carrier chrominance signal into the horizontal scanning period from which the carrier chrominance signal within the output signal of the gate circuit, and a color burst signal composing circuit for respectively composing color burst signals of adjacent one horizontal scanning periods of a color burst signal within the output signal of the gate circuit, and obtaining a color burst signal having an intermediate phase between the phases of the color burst signals.
REFERENCES:
patent: 3917415 (1975-11-01), Eguchi
patent: 3968514 (1976-07-01), Narahara et al.
patent: 4136358 (1979-01-01), Clemens et al.
patent: 4200881 (1980-04-01), Carnt et al.
patent: 4217603 (1980-08-01), Hjortzberg
patent: 4346397 (1982-08-01), Ota
Bernat Louis
Psitos Aristotelis M.
Victor Company of Japan Ltd.
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