JPH0468680A - Television receiver - Google Patents

Abstract

PURPOSE:To easily confirm whether a master screen is antenna input or external video equipment and similarly whether a slave screen is by changing the color of the frame of the slave screen according to the each combination of signal. CONSTITUTION:A changeover circuit 16 is controlled by the output of a switching command circuit 15. External video equipment 14, 34, 35 is switched by the output of an external input switching instruction circuit 36 to an external input switching circuit 37. Input signals from the antenna and external video equipment 14, 34, 35 can be respectively switched by these circuits 16, 37. At this time, the switching signal output of the circuits 15, 36 are inputted to a slave screen frame setting circuit 38, the frame color of a slave screen 3 is set by the combination of each switching signal, the frame color set by the circuit 38 to the edge of the slave screen 3 is made by a slave screen frame making circuit 26, and two screens are on a two screen preparation circuit 28. Thus, the signal sources of a master screen 2 and the slave screen 3 can be easily judged.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to the input television signal coming from the antenna input of a color television receiver and other video equipment (such as a video tape recorder, a video disc player, etc.).
The invention relates to a television receiver that simultaneously displays input signals from a television camera, a personal computer, etc. on one screen.

Conventional technology A television receiver that displays other programs in part of the television image being received, so-called rPicture in
The concept of the method called pictureJ (hereinafter referred to as PinP) is shown below.

Figure 2 is a conceptual diagram of PinP, in which 1 is a television receiver, 2 is a main screen portion that displays the first video signal, and 3 is a reduced size television screen that displays the second video signal. The inserted child screen section, 4, indicates the frame of the child screen. Sub screen 3
The frame 4 is used to prevent the edges of the sub-screen from becoming disordered and difficult to view when a so-called two-screen television is used.

FIG. 3 is a block diagram of a conventional PinP television receiver. In FIG. 3, a signal input from an antenna 11 passes through a tuner 12 and a video intermediate frequency circuit 13 and is demodulated into a video/audio signal, and the demodulated video/audio signal and video from another video device 14 are an audio signal is applied to the switching circuit 16 and the switching circuit 1 is activated by a command from the switching command circuit 15, e.g. a remote control transmitter;
A first signal is supplied from 6 to a color/video signal processing circuit 17, a synchronization circuit 18, and one audio circuit, and a first signal is supplied to a color/video signal processing circuit 20, a synchronization circuit 21, and an audio circuit 22. There are two outputs of the second signal. The first signal is the 0 color/video signal processing circuit 20 which becomes the main screen 2 in Figure 2.
The signal that has passed through is digitized by the A/D conversion circuit 23, written into the memory circuit 24 by a write command from the memory controller 25 with a clock corresponding to the phase of the synchronization circuit 21, and is written to the synchronization circuit 18 of the main screen. The data is read out using a tarokk corresponding to the phase of , and a sub-screen frame making circuit 26 creates a frame around the edge of the sub-screen 3.
After being converted into an analog signal by the D/A conversion circuit 27, it is matrixed by the two-screen creation circuit 28 with the video signal that has passed through the color/video signal processing zone i17, and is then converted into a shade [! wire tube 2
9, the 21i plane as shown in FIG. 2 is displayed.

Note that 32 is a set of child screen creation circuits. In addition, the output of the switching command circuit 15 is connected to the double-sided frame color switching circuit 33,
Using the output, the color of the frame of the child screen frame enclosure 26 is switched before and after the main screen image and the child screen image are swapped.

Problems to be Solved by the Invention However, with the increase in the number of input terminals in recent years, several types of external video equipment (such as video tape recorders,
When connecting and using a video disc player, television camera, personal computer, etc. at the same time, it is necessary to distinguish between the main screen and the sub-screen, i.e. whether the main screen is currently using antenna input or external video equipment. It is not possible to determine what the external signal source is just by distinguishing which is the sub-screen.

The present invention solves the above-mentioned conventional problems, and as input video equipment becomes more diverse, it is possible to easily identify from where each input video is being displayed on the main screen and sub-screen while looking at the screen. The purpose of the invention is to provide a digital television receiver.

Means for Solving the Problems In order to solve the above problems, the television receiver of the present invention inputs N video signals from the outside and selects one of the N video signals by a first switching signal. a first switching means for selecting a video signal of the book; and a second switching means for switching the video signal from the antenna and the video signal selected by the first switching means into first and second video signals by a second switching signal. 2 switching means, which inputs the first and second switching signals and also inputs the second video signal, and generates a frame signal of a specific color or brightness by a combination of the first and second switching signals; frame creating means for outputting a signal bordered by a frame according to the frame signal on a screen according to the second video signal; and inserting an output signal from the frame creating means into the first video signal. The apparatus is equipped with a two-screen creation means for creating a screen.

Effect With the above configuration, the color or brightness of the frame is changed depending on the combination of the input video signals of the main screen and the child screen, so while viewing the image, the viewer can check the input video from which screen. It is easy to confirm whether this is the case.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a television receiver showing an embodiment of the present invention, and components designated by the same numbers as those in FIG. 3 have the same functions. In FIG. 1, the switching circuit 16 is controlled by the output of the switching command circuit 15. Further, the external video equipment 14, 34, 35 is switched by the external input switching circuit 37 based on the output of the external input switching command circuit 36. The switching circuit 16 and the external input switching circuit 37 can switch between the input signal from the antenna and the input signal from the external video equipment 14, 34, and 35, respectively. At this time, the switching signal output of the switching command circuit 15 and the switching signal output of the external input switching command circuit 36 are inputted to the double-sided frame setting circuit 38, and the color of the frame of the sub-screen 3 is set by the combination of each switching signal.
The sub-screen frame creation circuit 26 creates a frame in the color set by the double-sided frame setting circuit 38 at the edge of the sub-screen 3, and the two-screen creation circuit 28
2 screens are displayed. Thereby, the signal source of the main screen 2 and the signal source of the child screen 3 can be easily determined based on the color of the frame of the child screen 3.

Effects of the Invention As described above, according to the present invention, on the g screen and the child screen,
By changing the color of the sub-screen frame depending on the combination, you can determine whether input from the antenna or external video equipment is being projected.
The viewer can easily check the video while watching it, and can easily operate the television receiver.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a PinP television receiver according to an embodiment of the present invention, Fig. 2 is a diagram showing two different images displayed on one screen, and Fig. 3 is a block diagram of a PinP television receiver according to an embodiment of the present invention.
FIG. 2 is a block diagram of an inP television receiver. 11... Antenna, 14.34.35... Other video equipment, 15... Switching command circuit, 16... Switching circuit,
26... Child screen frame surrounding circuit, 28... 2 screen creation circuit,
36...External input switching command circuit, 37...External input switching circuit, 38...1000-sided frame color setting circuit. Agent Yoshihiro MorimotoFigure 2

Claims (1)

[Claims] 1. A first switching means that inputs N video signals from the outside and selects one video signal from the N video signals using a first switching signal; a second switching means for switching the video signal from the input terminal and the video signal selected by the first switching means into first and second video signals; 2 video signals are input, a frame signal of a specific color or brightness is created by a combination of the first and second switching signals, and the screen of the second video signal is framed by the frame signal of the frame signal. 1. A television receiver comprising: a frame creating means for outputting a video signal; and a two-screen creating means for creating a screen by inserting an output signal from the frame creating means into the first video signal.