Low band converter for use in a video tape recorder

Details Low band converter for use in a video tape recorder Low band converter for use in a video tape recorder

1989-06-23

1992-08-25

Envall, Jr., Roy N.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358317, H04N 979

Patent

active

051423782

ABSTRACT:
A low band converter for recording color signals converted in low band onto a video tape media of a VTR system. The inventive converter for use in a video tape recorder is capable of converting color signals thereof in low band, so that phase and frequency of the color signals may be correctly coincident with those of a horizontal synchronization signal in the VTR, by first demodulating and next modulating by way of synthesizing the color-differential signals from the color signals. An apparatus for achieving the converter includes a burst gate generator BGPG, a pulse synthesizer, a first delay circuit, a second delay circuit, a burst amplifier, a color signal demodulator, a first modulator, a second modulator, a mixer, a first detector and a second detector, a color gain converter ACC, a video recording amplifier, a color killer suited, and a low pass filter 100.

REFERENCES:
patent: 2904628 (1956-01-01), Haantjes et al.
patent: 4136358 (1979-01-01), Clemens et al.
patent: 4200881 (1980-04-01), Carnt et al.

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