Video apparatus and video circuit for improving video signal quality
AssigneesHon Hai Precision Industry Co., Ltd., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
InventorsTAO WANG, KUO-PIN LIN
Life of this patent
Estimating the term…
Abstract
A video circuit employed in a video apparatus is configured for transmitting a video signal via an interface unit. The video circuit includes a display circuit and a compensation circuit. The display circuit switches the video apparatus into a video input mode in response to a user's operation, and blocks specific component of the video signal received from the interface unit. The compensation circuit adds a predetermined amount of direct current to the video signal.
Claims14
A video apparatus comprising:
- an interface unit configured for transmitting a video signal;
- a display screen configured for displaying a video image corresponding to the video signal;
- a video circuit connected between the display screen and the interface unit, wherein the video circuit comprising:
- a display circuit configured for switching the video apparatus to a video input mode in response to a user's operation, receiving the video signal transmitted from the interface unit, and further blocking specific component of the video signal;
- and
- a compensation circuit connected to the display circuit, configured for adding a predetermined amount of direct current to the video signal.
A video circuit configured for connecting between a display unit and an interface unit, wherein the video circuit comprising:
- a display circuit configured for switching the display unit to a video input mode in response to a user's operation, receiving a video signal from the interface unit, and further blocking specific component of the video signal;
- and
- a compensation circuit connected to the display circuit, configured for adding a predetermined amount of direct current to the video signal.
A video apparatus comprising:
- an interface unit configured for transmitting a video signal;
- a display screen configured for displaying a video image corresponding to the video signal;
- a video circuit connected between the display screen and the interface unit, wherein the video circuit comprising:
- a display circuit configured for switching the video apparatus to a video input mode in response to a user's operation, receiving the video signal transmitted from the interface unit, and further blocking specific component of the video signal;
- and
- a compensation circuit connected to the display circuit, configured for adding a predetermined amount of direct current to the video signal;
- wherein the display circuit further comprises a first capacitor, a first resistor, a second resistor, a second capacitor, and a video driver, the first capacitor, the video switcher, a first resistor, and a second capacitor are connected between the interface unit and the video deriver in serial, and the second resistor is connected to a junction where the second resistor is connected to the second capacitor and ground.
Dependencies are inferred from the claim text.