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| Video recording and reproducing apparatus with crosstalk reduction |
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| Apparatus for indicating overcorrections, in electrical color correction apparatus |
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Video signal selecting device
| Details |
Inventors: Maeda, Osamu;
Assignee: Funai Electric Co., Ltd. (Osaka, JP)
Primary Examiner: Lee; Michael H.
Assistant Examiner: Tran; Trang U.
Attorney, Agent or Firm: Greenspan; Myron Lackenbach Siegel, LLP
A video signal selecting device for selectively outputting one of a plurality of input video signals to a video display apparatus in accordance with an instruction input is disclosed. The selecting device comprises a selector for selectively outputting one signal of the plural video signals, an OSD control section for displaying symbol information on uniformly colored background indicating that the selective output is executed on a screen of the video display apparatus, and a control circuit section for controlling the selective output of the selector in accordance with the instruction input, and for detecting a change of the instruction input to start up the OSD control section. |
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DETAILED DESCRIPTION It is therefore an object of the present invention is to provide a video signal selected device which makes it easy to recognize a selecting operation for the input external signals.
In order to achieve the above object, there is provided a video signal selecting device for selectively outputting one of a plurality of input video signals to a video display apparatus in accordance with an instruction input, the selecting device comprising: a selector for selectively outputting one signal of the plural video signals; an OSD (On Screen Display) control section for displaying symbol information on uniformly colored background indicating that the selective output is executed on a screen of the video display apparatus; and a control circuit section for controlling the selective output of the selector in accordance with the instruction input, and for detecting a change of the instruction input to start up the OSD control section.
In the thus arranged video signal selecting device, when the current instruction is changed to another instruction, the control circuit section issues a command to the related portions of the device.
In response to the command, the OSD control section operates and causes a video display apparatus coupled to an output terminal to which a selected video signal is to be transmitted to display, for example, characters which indicate that the current instruction has been changed to another instruction, on the uniformly colored back-screen of the video display apparatus.
At the same time, the selector selects another video signal in accordance with the new instruction, and allows the selected video signal to pass therethrough and reach the output terminal.
Specifically, when another or new instruction is issued in place of the old one, a character chain representative of a change of instruction is displayed on the uniformly colored back-screen, and then the display of the characters is shifted to a display of an image defined by the video signal.
Every time the instruction is changed to another, a character chain representative of a change of the instruction is displayed on the back-screen
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