Video recording apparatus with color killer
AssigneeSony Corporation
InventorsTakao Tsuchiya, Hisaaki Narahara
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Abstract
A chrominance signal trapping circuit is provided in a video signal monitoring line of a color video signal recording apparatus. An operation of the trapping circuit is ganged with an operation of a color killer circuit of the recording apparatus. The trapping circuit prevents a chrominance component of an input video signal from being supplied to a monitor connected to the recording apparatus when the recording apparatus is operating in a monochrome mode, whereby an operating mode of the monitor is made to a monochrome mode forcedly and an operating mode of the monitor can be coincident with an operating mode of the recording apparatus automatically.
Claims3
A video recording apparatus comprising:
- a video signal recording system which is operable in both a color mode and in a monochrome mode,
- a video signal reproducing system,
- said video signal recording system having a video signal input terminal and a detecting circuit for detecting a chrominance level of an input signal applied to said input terminal,
- a color killer circuit controlled by an output of said detecting circuit for switching the operating mode of said video signal recording system between the color mode and the monochrome mode,
- a video signal monitoring line for coupling a video signal from said video signal input terminal to a video signal output terminal to a monitor from said output terminal, and
- a chrominance signal trap circuit, controlled by an output of said detecting circuit, provided in said video signal monitoring line for rejecting a chrominance component of said input video signal when said video recording system is working in the monochrome mode.
Dependencies are inferred from the claim text.