JPH0350974A - Television receiver - Google Patents

Abstract

PURPOSE:To attain the recording and reproduction of a picture resulting from a master picture superimposed on a slave picture by providing a means converting a signal from a switch into a composite form signal and a terminal outputting the composite form signal. CONSTITUTION:A television receiver having a PIP function is provided with a composite conversion section 7 converting a signal switched by a synthesizer 4 into a composite form signal and a terminal 8 from which a composite signal is outputted. When a VTR is connected to the terminal 8, a signal of a picture displayed on the screen of a CRT device is outputted in the composite form. Thus, when a picture of a picture resulting from a master picture superimposed with a slave picture by the PIP function is displayed on the screen of the CRT device, the picture of the picture resulting from a master picture superimposed with a slave picture is recorded by the VTR device. Moreover, when the tele vision receiver connects to the VTR device and reproduced, the picture recorded in the VTR is displayed on the television receiver.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is based on PIP (Picture In Pic).
The present invention relates to a television receiver having a PIP function, and more specifically to a television receiver capable of recording and reproducing images using the PIP function on a VTR device or the like.

[Conventional Example] In recent years, with the adoption of digital technology, various functions have been added to television receivers, one of which is the Pfl' function. The PIP function superimposes a reduced screen (child screen) on the negative part of the screen (151 screens), and it also allows you to overlap the child screen at any position on the main screen and change the images of the main screen and child screen in various ways. can.

Therefore, as shown in FIG. 2, the television receiver has a plurality of video signals (for example, received terrestrial broadcast video signals and other video signals) divided into main screen and sub screen, and A switch 1 that switches to a video signal, a main screen processing section 2 that processes the switched video signal as a main screen, a sub screen processing section 3 that processes the switched video signal as a sub screen, and its parent screen. A synthesizer 4 that synthesizes the signal processed by the screen processing section 2 and the signal processed by the child screen processing section 3; an RGB conversion section 5 that converts this synthesized signal into an RGB signal; An output terminal 6 is provided for outputting the same video signal as the screen to the outside. Note that the television receiver is equipped with a TV tuner, various other circuits, and a CRT device that displays images according to the RGB signals.

Here, for example, when displaying an image based on video signal A on the main screen and displaying an image based on video signal B in a reduced size on the sub screen, switch 1a, which is the changeover device 1, is switched to terminal a, and switch 1b is switched to terminal a. Can be switched. Then,
Video signal A is image-processed by main screen processing section 2, and video signal B is image-processed by sub-screen processing section 3. Further, switching control of the synthesizer 4 is performed depending on the position on the main screen at which the child screen is displayed. Then, these image-processed signals, for example, Y, R-Y, and B-Y signals, are switched at the timing of the display position of the child screen, and these Y, R-Y, and B-Y signals are converted into RGB converter 5. It is converted into an RGB signal. Since the RGB signal obtained in this way is based on the main screen image and the child screen image, its RO
On the screen of the CRT device that receives the B signal as an input signal, an image of a main screen and an image of a sub-screen are shown superimposed at a predetermined position on the main screen.

In this way, by switching control of the switch 1 and the synthesizer 4, child screens of various sizes can be superimposed on the main screen,
Moreover, the sub screen can be set at any position.

[Problems to be Solved by the Invention] However, in the television receiver having the above PIP function, only the signal of the main screen is output from the output terminal 6, and not the signal output from the switching device 1, so the PIP function is not possible. There was a problem in that the images could not be recorded or played back on a video device or the like.

The present invention has been made in view of the above problems, and its purpose is to provide a television receiver that can record and reproduce images using the PiP function.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a PiP system that displays a reduced screen (child screen) superimposed on a part of the screen (main screen).
a main screen signal processing circuit that processes the image signal of the main screen, a subscreen signal processing circuit that processes the image signal of the subscreen, and a switch that switches these processed signals according to the reduced screen. The television receiver is equipped with a composite conversion means for converting the signal output from the switching device into a composite format signal, and an output terminal for outputting the composite format signal.

The gist is that it is possible to record and reproduce an image in which a child screen is superimposed on the main screen.

[Function] With the above configuration, a composite format signal that can be recorded and played back on a VTR device or the like is output from the output terminal. Moreover, the image signal by the PIP function of the television receiver is converted into a composite format and output from its output terminal. Therefore, the image by the PIP function is V
It can be recorded and played back by a TR device, etc., and it is possible to record an image in which a child screen is superimposed on a main screen, and to play back that image.

[Example] Hereinafter, an embodiment of the present invention will be described based on FIG. 1.

In this figure, a television receiver having a PiP function has a signal (Y) switched by a synthesizer 4.

R-Y, B-Y signals) and composite format signals (NT
A composite converting section 7 that converts the composite signal into an SC signal) and an output terminal 8 that outputs this composite signal are provided.

Here, if a VTR device is connected to the output terminal 8, the signal of the image displayed on the screen of the CRT device will be output from the output terminal 8 in composite format. When the image of the screen in which the screens are superimposed is displayed on the screen of the CR"f' device ff, the image of the screen in which the child screen is superimposed on the parent screen can be recorded by the VTR device. Furthermore, when a television receiver or a monitor device is connected to the VTR device and a playback operation is started, the recorded images are displayed on the television receiver or monitor device.

In addition, as shown by the two-dot chain line in FIG. 1, the signal output from the output terminal 6 shown in the conventional example and the signal output from the composite conversion section 7 are switched to the television receiver having the PIp function. A switch section 9 and an output terminal 10 for outputting a signal switched by the switch section 9 may be provided. Note that switching control of the switch section 9 is performed by, for example, a remote controller.

Then, by switching the switch section 9, either the signal from the output terminal 6 shown in the conventional example or the signal of the image displayed on the screen of the CRT device mentioned above is output from the output terminal 1O. A signal outputted from this output terminal 10 can be recorded on a VTR device, and the signal can be reproduced by this VTR device.

In this way, since the television receiver having the PIP function outputs the signal of the image displayed on the screen of the CRT device, the image by the PIP function can be recorded and played back on the VTR device. Furthermore, the use of television receivers with PIP functions will be expanded.

[Effects of the Invention] As explained above, according to the present invention, in a television receiver having a PIP function, image signals (for example, Y, R-Y, B-Y signals) to be displayed on the screen of the CRT device are
Since it is equipped with a composite conversion section that converts a signal into a composite format signal (NTSC signal) and an output terminal that outputs this composite format signal, the image displayed on the screen of the CRT device can be recorded and recorded on a VTR device. This makes it possible to record and reproduce images using the PIP function, and further expand the use of the television receiver.

[Brief explanation of drawings]

FIG. 1 is a schematic partial block diagram of a television receiver showing an embodiment of the present invention, and FIG. 2 is a schematic partial block diagram of a conventional television receiver. In the figure, 1 is a switch, 2 is a main screen processing section, 3 is a child screen processing section, 4 is a synthesizer, 5 is an RGB conversion section, 7 is a composite conversion section, 8.10 is an output terminal, and 9 is a switch section It is.

Claims (1)

[Claims] (1) A main screen signal processing circuit that has a PIP function to display a reduced screen (child screen) over a part of the screen (main screen) and processes the image signal of the main screen, and an image of the child screen. In a television receiver equipped with a small screen signal processing circuit that processes signals and a switch that switches the processed signals according to the reduced screen, the signal output from the switch is converted into a composite format signal. A television receiver comprising a composite conversion means and an output terminal for outputting a signal in the composite format, and capable of recording and reproducing an image in which a sub-screen is superimposed on the main screen.