Subcarrier generating device for color signal processing circuit

Details Subcarrier generating device for color signal processing circuit Subcarrier generating device for color signal processing circuit

1987-03-24

1989-01-10

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 19, 358 23, H04N 964, H04N 968

Patent

active

047977329

ABSTRACT:
A continuous subcarrier signal generated by a voltage-controlled oscillator is supplied to a harmonic removal filter, where harmonic components contained in the continuous subcarrier signal are removed. The continuous subcarrier signal, whose harmonic components are removed, is supplied to a tint circuit connected to a variable resistor for varying the phase, where it is phase-controlled. The phase-controlled continuous carrier signal is supplied to a subcarrier amplifier, where it is applied with a predetermined processing, and a plurality of continuous carrier signals, whose phases are related in a predetermined manner, are generated.

REFERENCES:
patent: 3679816 (1972-07-01), Avins et al.
patent: 3694567 (1972-09-01), Kresock
patent: 3878558 (1975-04-01), Fujisawa et al.
patent: 4207590 (1980-06-01), Naimpally et al.
patent: 4366451 (1982-12-01), Kowal
patent: 4468687 (1984-08-01), Munezawa et al.

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