Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1974-02-20
1976-06-01
Safourek, Benedict V.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 31, H04N 902
Patent
active
039613593
ABSTRACT:
A video signal processing system for reproducing a colorplexed composite video signal obtained by colorplexing a frequency shifted chrominance signal shifted to a lower frequency band and a luminance signal by using frequency interlacement, the composite video signal being recorded in the form of an angular modulation signal on a recording medium, and converting the reproduced signal into a standard color television signal. In this system, the chrominance signal band component is extracted from the reproduced composite video signal, and the extracted signal is frequency converted into a signal in the frequency band of the chrominance signal in the standard color television signal. The frequency converted signal is then coupled to a comb filter to separate the chrominance signal. The chrominance signal thus obtained is combined with a signal obtained by removing the chrominance signal component from the reproduced composite video signal, thereby recovering the standard color television signal.
REFERENCES:
patent: 3764739 (1973-10-01), Faroudja
patent: 3812523 (1974-05-01), Narahara
Kamisaka Kosei
Kamogawa Toshiro
Okuno Noboru
Matsushita Electric - Industrial Co., Ltd.
Saffian Mitchell
Safourek Benedict V.
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