JPH0289475A - Television receiver - Google Patents

Abstract

PURPOSE:To attain the changeover of a moving picture/still picture and channel changeover through the selection of one optional pattern among plural patterns by providing a selection means for plural split patterns and a channel changeover means for split patterns. CONSTITUTION:A position selection section 5 in response to the operation of an operation section 6 references a memory 7 having memory areas 31-34 corresponding to split patterns of one pattern of a frame memory 8 and storing a channel number, one of the areas 31-34 is selected and the channel is switched while being selected by a channel selection section 8 of a tuning circuit 1. The changeover of a moving picture/still picture channel is implemented similarly to select a desired one pattern among the plural split patterns thereby attaining channel changeover and moving picture/still picture changeover.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a television receiver capable of displaying multiple screens.

(Prior art) For multi-screen display, a frame memory is provided and the frame memory is used for partitioning, and each partition is divided into one screen (
4a), and display them on the CRT as a plurality of screens.

FIG. 5 is a diagram showing the multi-screen (example of four screens), and FIG. 6 is a schematic diagram of the main part of the television receiver having the multi-screen function.

The TV broadcast received by the antenna is selected by the tuner 1, and the color demodulation circuit 2 performs color demodulation and 1. After that, the video signal is subjected to A/D conversion and other processing before being made compatible with multi-screens. One screen is stored in the memory areas 31 to 34 of the frame memory 3 divided into sections. Then, the contents of this frame memory 3 are constantly read out and CR'T”
4, the multi-screen is played back.

Multi-channel and frame-dropping are known as this multi-screen function.

First, in the case of multi-channel, the latest screen of the channel set in advance for each divided screen is displayed one after another at a certain time interval as a still image, starting from the divided screen (not shown in Figure 5). be done.

Furthermore, in the case of frame dropping, the latest screens of the channel currently selected are displayed as still images one after another at regular time intervals starting from the divided screen.

[Problem to be solved by the invention]

In this way, the conventional multi-screen function only displays multiple still images divided into sections in a preset order on the TV receiver, and it is not possible to arbitrarily select a specific divided screen position. .

An object of the present invention is to enable a user to freely select a specific divided screen out of a multi-screen, and also to freely select a channel for that divided screen.

[Means for Solving the Problems] For this purpose, the present invention provides a television receiver in which the screen is partitioned and a plurality of partitioned screens can be displayed, in which an arbitrary one of the partitioned screens is selected. The screen is configured to include an operation button and a means for switching the channel of the selected divided screen.

〔Example〕

Examples of the present invention will be described below. FIG. 1 is a diagram showing a schematic configuration of a television receiver according to one embodiment. In this embodiment, the memory areas 31 to 34 allocated for one screen of the frame memory 3 can be selected in the position selection section 5, and the position selection section 5 can be controlled by operation from the operation section 6. . 7 is a memory for storing the channel number and the allocated memory area of the memory 3; 8 is a channel selection section for selecting a reception channel.

As an example of the operation section 6, as shown in FIG. 2(a), buttons 61 to 64 are provided according to the positions of the sections ■ to ■ of the multi-screen shown in FIG. When one is pressed, the corresponding divided screen can be selected.

In addition, as shown in FIG. 2(b), four cursor buttons 9°l to 94 for horizontal, vertical, and vertical movement are provided.
It is also possible to select a divided screen frame within the screen by operating keys 1 to 94. Selection in the latter case can be realized by changing the color of the divided screen frame. The latter example is suitable for a large number of divided screens, for example, nine screens.

In FIGS. 2(a) and fb), 65.95 is the i-th mark for ending multiplayer, and when this is pressed, the moving image currently being received will be displayed on the entire CRT screen. A typical TV receiver with this kind of multi-screen function is a TV receiver with a scanning line interpolation function (IDTV, EDTV).
etc.), and in this case, when the multi-termination function 5065 or 75 is operated, the scanning line interpolation function is restored and high-quality reproduction is performed.

FIG. 3 shows changes in the multichannel screen when the operating section 6 shown in FIG. 2(a) is used.

During normal reception, the screen of, for example, one channel being received at that time is displayed as a moving image on the entire surface of the CRT 4 (
Figure 3(a)).

When any button on the operation unit 6 is pressed in such a normal reception state, the multi-screen function starts.

For example, if you press the button 61 in the upper left of Fig. 2(a), the button 61 corresponds to the divided screen shown in Fig. 5, so the first channel screen will be displayed at the position of the divided screen ■. is assigned and a reduced moving image is displayed (FIG. 3(b)). At this time, nothing is displayed on the other divided screens (■ to ■), and the screen becomes, for example, blue-colored.

Next, when the upper right button 62 is pressed, the division screen changes to a still image, and at the same time, the screen of the same channel is displayed as a moving image on the division screen (2) (FIG. 3(C)).

The still image of the divided screen (■) is created by writing the last screen of the moving image into the memory area 31 of the frame memory 3, and then continuously reading out the images in this area. At this time, the reception channel 'IJ' is stored in the memory 7 for this divided screen (2).

Next, when the channel is changed to, for example, the 4th channel by operation of the channel selection unit 8, the receiving screen of the 4th channel is displayed as a moving image on the section screen ■ in place of the screen of the 1st channel. (Figure 3(d)). From now on, by performing channel selection and division screen selection in the same way, each division screen will display a still image of the screen when that screen was selected and the next division screen was selected, and at the same time, from the video. The channels on both sides of the partition that have been changed to still images are stored.

Therefore, the screen of any channel can be allocated to any divided screen position, and channel selection and moving image/still image selection can be performed for a specific divided screen.

For example, as shown in Figure 3 (el), four divided screens
If the reception screen is assigned to ~■, and the divided screens ■~■ are displayed as still images and the divided screen ■ is displayed as a video (selected last), if you press button 32 afterwards Split screen■
is selected.

At this time, for the divided screen (2), the channel (eighth channel) of that screen is stored at the same time as the screen changes from a moving image to a still image. Also, regarding the division screen■,
The reception screen of the fourth channel that was stored for that screen is now displayed as a moving image. You can also change the channel here.

Therefore, if you assign different channels to multiple divided screens in advance, from then on, you can specify them by pressing the buttons 61 to 64 corresponding to the divided screens without paying attention to the channel numbers. The display of the divided screen can be switched to a moving image, and if the multi-end button 65 is then pressed, the moving image of the selected divided screen can be displayed in full.

In addition, if the memory 7 is configured to store teletext programs and pages, it is possible to allocate multiple teletext programs to different divided screens ■~■ and display multiple programs at the same time. It is also possible to display multiple pages within the same program at the same time.

FIG. 4 shows the screen changes when dropping frames.

In the case of this frame-dropping, select a division screen ■～■ while receiving a specific channel! Each time 061 to 64 is pressed, the divided screen selected immediately before the press is changed from displaying a moving image to displaying a still image, and a moving image is displayed on the divided screen selected last.

At this time, the time interval for frame dropping is the time interval for pressing the buttons 61 to 64, and can be set arbitrarily. Furthermore, the order of the divided screens for frame dropping is also free.

〔Effect of the invention〕

As described above, according to the present invention, in the multi-screen function, it is possible to select any one of a plurality of screens to perform video/still image switching or channel switching.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a schematic configuration of a video signal processing section of a television receiver having a multi-screen function according to an embodiment of the present invention, and FIG. Explanatory diagram, Figure 3 is an explanatory diagram of multi-channel display, Figure 4 is an explanatory diagram of frame dropping, and Figure 5 is a CRT with multi-screen display.
An explanatory diagram of the screen, FIG. 6 is a diagram showing a schematic configuration of the video signal processing section of Tsuchiki's television receiver having a multi-screen function. Agent Patent Attorney Tsuneaki Nagao Figure 1 Figure 2 Figure 3 Figure 1ch ) l-but I3 Press x surface 61 degrees Celsius 621 Press 1 Figure 4 Gosenkan 63? FV, 6 lower roller 42 lower middle ball 5th figure 6th figure

Claims (3)

[Claims] (1) In a television receiver that can divide the screen and display multiple divided screens, there is an operation button for selecting any one of the divided screens, and a channel of the selected divided screen. 1. A television receiver comprising: means for performing switching. (2) Television reception according to claim 1, characterized in that when the selected divided screen is the first selection, the screen of the channel currently being received is displayed as a moving image. Machine. (3) A television receiver characterized in that when the selected divided screen has a history of being selected in the past, the screen of the past channel is displayed as a moving image.