Circuit for generating TV color burst gate

Details Circuit for generating TV color burst gate Circuit for generating TV color burst gate

1977-06-22

1979-04-10

Griffin, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

328 58, 307265, 307271, 307354, H04N 946

Patent

active

041491793

ABSTRACT:
In a color television receiver a pulse is generated corresponding to the horizontal beam deflection flyback interval. This pulse is coupled to a gating transistor and to an integrator. The integrator output is a sawtooth signal that is fed to a zero-crossing detector, the output of which is also coupled to the gating transistor. The gating transistor will then generate a pulse that corresponds to the second half of the flyback pulse and is therefore a nearly ideal source of color burst gate pulse.

REFERENCES:
patent: 2985836 (1961-05-01), Hatton
patent: 3073971 (1963-01-01), Daigle, Jr.
patent: 3135826 (1964-06-01), Moles et al.
patent: 3492602 (1970-01-01), Berwin et al.
patent: 3610956 (1971-10-01), Giordano et al.
patent: 3614303 (1971-10-01), Krause
patent: 3757230 (1973-09-01), Keeney, Jr.
patent: 3835419 (1974-09-01), Milne et al.

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