Video apparatus delivering video signals, notably S-Video signals
AssigneeThomson Licensing
InventorsFrank Dumont, Chee Lam Tan, Qing Jin Zhou
Life of this patent
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Abstract
A video apparatus has a video source with a luminance output carrying a first luminance signal and a chrominance output carrying a chrominance signal, an OSD circuit generating OSD signals and a fast-blanking signal, and a connector for delivering video signals. A converter outputs a second luminance signal based on the OSD signals and a first switch is controlled by the fast-blanking signal selectively connects the converter or the luminance output to the connector and a second is switch is controlled by the fast-blanking signal selectively connects the chrominance output or a circuit generating a constant chrominance signal to the connector.
Claims10
A video apparatus comprising:
- a video source with a luminance output carrying a first luminance signal,
- an OSD circuit generating OSD signals and a fast-blanking signal,
- a connector for delivering video signals,
- a converter outputting a second luminance signal based on the OSD signals and
- a first switch controlled by the fast-blanking signal and selectively connecting the converter or the luminance output to the connector, wherein
- the video source has a chrominance output carrying a chrominance signal and wherein
- a second switch controlled by the fast-blanking signal selectively connects the chrominance output or a circuit generating a constant chrominance signal to the connector.
Dependencies are inferred from the claim text.