JPH11298813A - Television receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and quickly execute channel selection of television broadcasting that has strong field strength by producing a multi-screen video image signal of a multi-screen consisting of split screens of receiving images of N pieces of channels having the strongest field strength. SOLUTION: Twenty-one channel television broadcast is received in turn in discending order of the field strength by the control of a sequential receive controlling means of a microcomputer 3 over a television tuner 2. When the number of split screens is made N based on twenty-one channel receiving signals received from the tuner 2 by a multi-screen video signal generating means 6 in the order of field strength, a multi-screen video signal of the multi-screen that consists of the split screen of field strength orders of receiving images of N pieces of channels in descending order of field strength or channel number orders among twenty-one channels which are arranged in descending order of strength is produced. And, the multi-screen video signal is supplied to an indicator 8 and a multi-image consisting of split images 7a to 7i is shown on the indicator 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver suitable for being mounted on a vehicle, a ship, an aircraft or the like.

[0002]

2. Description of the Related Art Conventionally, a television tuner, display means,
A television receiver having multi-screen video signal generation means for generating a multi-screen video signal to be supplied to a display means based on a plurality of channels of received signals from a television tuner is commercially available.

When such a television receiver is used, for example, in the Shonan district of the Kanto region in Japan, a central VHF transmitted from a transmitting antenna installed in Tokyo Tower is used.
Broadcast (broadcasts of channels 1, 3, 4, 6, 8, 10, and 12), Hiratsuka local UHF broadcast (re-broadcast of the contents of central VHF broadcast as UHF broadcast), and Odawara local UHF broadcast (central VHF broadcast UHF content
Re-broadcast as a broadcast), and a total of 21 channels of television broadcasts can be received. UHF broadcasting is 1
The broadcast is any one of channels 3 to 62.

Consider a case where the above-described multi-screen television receiver is mounted on a vehicle and used. As shown in FIG. 5, a case where 3 × 3 = 9 divided screens 7a to 7i can be displayed on the screen 7 of the display device in the multi-screen mode will be described as an example. In this case, the nine divided screens 7a to 7i include, for example, the reception screens of the broadcasts of channels 1, 3, 4, 6, 8, 10, and 12 of the central VHF broadcast and the Hiratsuka local U
The received image of the broadcast of the channel having the smallest number and the next smallest number of the HF broadcast are sequentially displayed. Further, by switching the screen of the display device twice, the received images of the remaining 12 channels of the broadcast can be sequentially projected on each divided screen of the multi-screen in the order of channels.

[0005]

However, when such a television receiver is used, for example, mounted on a vehicle, the electric field intensity of the broadcast reception signal of each channel changes with the movement of the vehicle. Therefore, on the divided screens 7a to 7i constituting the screen 7 of the display device, an image based on a received signal with a strong electric field intensity, an image based on a somewhat weak received signal, and an image based on a weak received signal are mixed and displayed. In the divided screens 7a to 7i, a good screen, a slightly bad screen, and a bad screen are mixed.

However, when a reception channel (selection channel) is determined while watching a multi-screen displayed on a display device of a television receiver, a channel of a good screen or
Normally, the decision is made from the channels of a good screen and a slightly bad screen.

[0007] Therefore, it is better to display an image based on a received signal having the highest possible electric field strength on each divided screen on the screen of the display device of the multi-screen television receiver, so that the selection of a reception channel (selection channel) is possible. It is desirable to widen the range.

In view of the above, the present invention provides a television tuner, a display means, and a multi-screen video signal generation for generating a multi-screen video signal to be supplied to the display means based on a plurality of channels of received signals from the television tuner. Means, a picture based on a received signal with a strong electric field strength can be projected on each divided screen of the multi-screen of the display means, and the selection of a television broadcast with a strong electric field strength is easy and quick. It is intended to propose the following.

[0009]

According to a first aspect of the present invention, there is provided a television receiver including a television tuner, a display, and a multi-screen video signal supplied to a display based on a plurality of channels of received signals from the television tuner. Controlling a multi-screen video signal generating means for generating
An electric field intensity detecting means for receiving received signals of a plurality of receivable predetermined channels and detecting the electric field strength of the receivable predetermined plurality of received signals; According to the detection result of the intensity detecting means, a parallel means for sequentially arranging the electric field strength from the strongest to a weak one, and controlling the television tuner to broadcast a plurality of predetermined channels to control the parallel means so that the electric field strength is high. A plurality of channels sequentially received from a television tuner in order from strongest to weakest in electric field strength by a multi-screen video signal generating means. , The number of divided screens is set to N
(Where N is an integer of 2 or more), among a plurality of predetermined channels sequentially arranged in descending order of electric field strength to those of weak electric field strength, the received images of N channels having the strongest electric field strength are displayed. A multi-screen video signal of a multi-screen composed of divided screens is generated.

According to the first aspect of the present invention, the television tuner is controlled by the electric field strength detecting means to receive a plurality of receivable reception signals of a plurality of receivable predetermined channels. The electric field strength of the detected, by the parallel means, a predetermined plurality of channels of the receivable received signal, according to the detection result of the electric field strength detection means, sequentially arranged from the strongest to the weakest electric field strength,
By the sequential reception control means, by controlling the television tuner, the broadcast of a plurality of predetermined channels, by the control of the parallel means, to receive sequentially from the strongest to the weakest electric field strength, by the multi-screen video signal generating means, The number of divided screens is set to N (where N is an integer of 2 or more) based on reception signals of a plurality of predetermined channels sequentially received from a television tuner in which electric field strength is high to low.
, Among a plurality of predetermined channels sequentially arranged from the strongest electric field strength to the weakest electric field strength, a multi-screen multi-screen composed of divided screens of received images of N channels having the strongest electric field strength A video signal is generated.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first aspect of the present invention is a multi-screen video for generating a multi-screen video signal to be supplied to a display based on a television tuner, a display, and a plurality of channels of received signals from the television tuner. A signal generating unit, an electric field intensity detecting unit for controlling a television tuner to receive a plurality of receivable received signals of a predetermined plurality of channels, and detecting an electric field intensity of the receivable predetermined plurality of received signals, A parallel means for sequentially arranging predetermined plural channels of possible reception signals from a strong electric field strength to a weak electric field strength according to the detection result of the electric field strength detecting means, and controlling the television tuner to broadcast the predetermined plural channels. And a sequential reception control means for receiving the electric field strength in order from the strongest to the weakest by controlling the parallel means. The number of divided screens is set to N (where N is an integer of 2 or more) based on reception signals of a plurality of predetermined channels sequentially received from the television tuner in a direction of high to low electric field strength by the signal generation means. ), Among a plurality of predetermined channels sequentially arranged from the strongest electric field strength to the weakest electric field strength, a multi-screen multi-screen composed of divided screens of received images of N channels having the strongest electric field strength. A screen video signal is generated.

According to a second aspect of the present invention, there is provided a television tuner, display means, and multi-screen video signal generation means for generating a multi-screen video signal to be supplied to the display means based on a plurality of channels of received signals from the television tuner. Electric field intensity detecting means for controlling a television tuner to receive received signals of a plurality of receivable predetermined channels, and detecting the electric field strength of the received signals of the predetermined plurality of receivable channels; Parallel means for sequentially arranging a plurality of predetermined channels according to the detection result of the electric field strength detecting means from the one having the strongest electric field strength to the one having the weakest electric field strength; and controlling the TV tuner to broadcast the predetermined plurality of channels. Control means for sequentially receiving the electric field strength from the strongest to the weakest under the control of the multi-screen video signal generator. By means, the number of divided screens is set to N (where N is an integer of 2 or more) based on reception signals of a predetermined plurality of channels sequentially received from the television tuner in the order of high to low electric field strength. Then, the first multi-screen of the multi-screen composed of the divided screens of the received images of the N channels having the strongest electric field strength among the predetermined plurality of channels sequentially arranged from the strongest to the weakest electric field strengths Screen video signal, second multi-screen video signal of a multi-screen composed of divided screens of received images of N channels having the next highest electric field strength, ‥‥‥‥‥‥, reception of N channels having the strongest electric field strength An Mth (here, M is an integer of 2 or more) multi-screen video signal of a multi-screen composed of divided screens of an image is generated.

According to a third aspect of the present invention, in the television receiver according to the first aspect of the present invention, the divided screen in the multi-screen multi-screen video signal composed of the divided screens of the received images of the N channels having the strongest electric field strength is: The received images of N channels are arranged in the order of electric field strength.

According to a fourth aspect of the present invention, in the television receiver according to the first aspect of the present invention, the divided screen in the multi-screen multi-screen video signal composed of the divided screens of the received images of the N channels having the strongest electric field strength is: The received images of N channels are arranged in the order of channel numbers.

According to a fifth aspect of the present invention, there is provided the television receiver according to the second aspect of the present invention, wherein a first multi-screen video signal of a multi-screen consisting of divided screens of received images of N channels having the strongest electric field strength is provided. A second multi-screen video signal of a multi-screen composed of divided screens of received images of N channels having the next highest intensity, 強度, from a divided screen of received images of N channels having the strongest electric field strength Each divided screen in the M-th multi-screen video signal of the multi-screen (where M is an integer of 2 or more) is one in which received images of N channels are arranged in the order of electric field strength.

According to a sixth aspect of the present invention, there is provided the television receiver of the second aspect of the present invention, wherein a first multi-screen video signal of a multi-screen consisting of divided screens of received images of N channels having the strongest electric field strength is provided. A second multi-screen video signal of a multi-screen composed of divided screens of received images of N channels having the next highest intensity, 強度, from a divided screen of received images of N channels having the strongest electric field strength Each of the divided screens in the M-th multi-screen video signal of the multi-screen (where M is an integer of 2 or more) is one in which received images of N channels are arranged in the order of channel numbers.

[Specific Example of Embodiment of the Invention] A television receiver according to a specific example of an embodiment of the present invention will be described below in detail with reference to the drawings. First, a circuit configuration of a specific example of a television receiver will be described with reference to FIG. In FIG.
Reference numeral 2 denotes a television tuner capable of receiving VHF and UHF television broadcasts, and includes a receiving antenna 1. When the television receiver of the specific example is for use in a vehicle, the receiving antenna 1 is an antenna attached to the vehicle, and a diversity antenna can be used. Reference numeral 3 denotes a microcomputer serving as control means (control device) for controlling the television tuner 2, and includes a memory (RAM) 4. Note that the microcomputer 3 further includes a ROM and a RAM, but illustration thereof is omitted. Reference numeral 5 denotes a keyboard provided with various keys (operation means) for receiving television broadcasts. An input signal based on the operation of the various keys is supplied to the microcomputer 3.

The television tuner 2 is a tuner having a PLL (Phase Locked Loop) synthesizer.
A tuner AGC signal from the reverse AGC circuit of the television tuner 1 is supplied to an A / D converter of the microcomputer 3 and converted into a digital AGC signal. AFT (automatic fine tuning) from TV tuner 2
The signal is supplied to the microcomputer 3. The tuning of the TV tuner 1 is performed by changing the frequency division ratio of the programmable frequency divider of the PLL synthesizer.
The data of the frequency division ratio (PLL data) can be transmitted between the television tuner 2 and the microcomputer 3.

FIG. 4 shows the reception characteristics of the television tuner 2, wherein the video detection output with respect to the electric field intensity and the S of the video signal are shown.
/ N and the characteristics of each level of the tuner AGC are shown. The AGC circuit of the TV tuner 2 has an electric field strength of 60 to 65.
The operation starts when the signal level reaches about dB or more, and at that time, the S / N of the video signal also becomes good.

Reference numeral 6 denotes a color video signal processing circuit and a multi-screen video signal generation circuit, which receive a received signal from the television tuner 2, process the received signal and generate a multi-screen video signal. The generated multi-screen video signal is supplied to a display 8 such as an LCD (Liquid Crystal Display), and its screen 7 has 3 × 3 = 9 divided screens 7 a to 7 i of an image based on nine received signals. It is projected on.

Next, the control operation of the microcomputer 3 will be described with reference to FIG. 1 together with FIG. Step S
At T-1, it is determined whether or not the multi-screen mode has been selected by operating the keys of the keyboard 5 or the like. If NO, the process proceeds to step ST-7 described later, and if YES, the process proceeds to step ST-2. Transition.

At step ST-2, the electric field intensity detecting means of the microcomputer 3 causes the television tuner 2
To control all of the plurality of receivable predetermined channels, for example, the central VHF broadcast (1, 3,...) Transmitted from the transmitting antenna installed at the Tokyo Tower described above.
4, 6, 8, 10 and 12 channel broadcasts), Hiratsuka local UHF broadcast (re-broadcast of the contents of central VHF broadcast as UHF broadcast) and Odawara local UHF broadcast
Broadcasting (re-broadcasting the contents of the central VHF broadcast as UHF broadcast), a total of 21 channels of television broadcasts are sequentially received by supplying the frequency division ratio (PLL data) from the microcomputer 3 to the television tuner 2. hand,
The respective electric field intensities are, for example, calculated by A
The electric field strength is detected by the GC voltage level, and its electric field strength is determined by its channel number (center VHF, local UH in Hiratsuka).
F, and a frequency division ratio (PLL data) as a channel number including another UHF local UHF. It should be noted that the presence or absence of the received TV broadcast is A
It is detected by the level of the FT voltage.

Following step ST-2 is step ST-3.
Then, the dividing means (PLL data) as the channel number of 21 channels stored in the memory 4 is changed by the parallel means of the microcomputer 3 according to the detection result of the electric field strength detecting means to obtain the frequency division ratio (PLL data). From the weakest to the weakest, and stored in the memory 4.

Step ST-3 is followed by step ST-.
Then, the control goes to 4 to control the television tuner 2 by the sequential reception control means of the microcomputer 3 to sequentially receive the 21-channel television broadcasts from the one with the stronger electric field strength to the one with the weaker electric field strength.

After step ST-4, step ST-
5, the multi-screen video signal generating means 6 sets the number of divided screens to N based on the received signals of 21 channels sequentially received from the TV tuner 2 in the order of electric field strength from strongest to weakest. (Where N is an integer of 2 or more, for example, 9 in this case), among the 21 channels arranged in order from the one with the strongest electric field strength to the one with the weakest electric field strength, N with the strong electric field strength (here, 9) A multi-screen video signal of a multi-screen consisting of divided screens in the order of electric field strength or channel number of received images of the channels is generated, and the multi-screen video signal is supplied to the display 8;
The display 8 displays a multi-screen including the split screens 7a to 7i.

Following step ST-5 is step ST-6.
Then, it is determined whether or not one of the divided screens is selected by operating the keys of the keyboard 5 by the divided screen selecting means of the microcomputer 3, and if NO, the process proceeds to step ST-2. Returns to step ST-7, and proceeds to step ST-7.

In step ST-7, the microcomputer 3 controls the TV tuner 2, the color video signal processing circuit and the multi-screen video signal generation circuit 6 to select one of the nine divided screens. By supplying a division ratio corresponding to the channel of the screen image from the microcomputer 3 to the television tuner 2,
The broadcast of the channel is received, and the received signal is converted into a color video signal processing circuit and a multi-screen video signal generation circuit 6.
And a single image of the receiving channel is displayed on the screen (full screen) 7 of the display 9.

FIG. 3 shows a display example of the display unit 8. The divided screens 7a to 7g display a received image of a received signal having a strong electric field strength, and have a good screen, and the divided screens 7h and 7i have electric fields. The received image of the received signal with a slightly weaker intensity is displayed,
This is a case where the screen is slightly bad, and the images arranged in the order of the receiving sensitivity of the received signal are sequentially displayed on the divided screens 7a to 7i. In each of the screens 7a to 7i, a channel number of the received image (a channel number including VHF at the center, local UHF at Hiratsuka, and local UHF at Odawara) is simultaneously displayed.

In the above-mentioned specific example, the multi-screen video signal generating means 6 divides the video signal from the television tuner 2 based on the reception signals of a plurality of channels sequentially received from the one having the strongest electric field strength to the one having the weak electric field strength. N number of screens
(Where N is an integer of 2 or more, here 9)
Generates a multi-screen multi-screen video signal composed of divided screens of the received images of the nine channels having the strongest electric field strength among the plurality of predetermined channels sequentially arranged from the strongest to the weakest electric field strength. In addition to this, in addition to this, the second multi-screen video signal of the multi-screen composed of the divided screens of the received images of the nine channels having the next highest electric field strength, The M-th (here, M is an integer of 2 or more, for example, 3) multi-screen video signal of a multi-screen including divided screens of received images of 9 strong channels may be generated. These first to third multi-screen video signals are input to the keyboard 5
In response to the operation of the key, the information is switched and supplied to the display 8 so that the display is individually displayed on the screen of the display 8. still,
Part of the multi-screen composed of the divided screens of the received images of N (here, 9) channels of the M-th (here, 3) multi-screen video signal includes a divided screen having no received image.

[0030]

According to the first aspect of the present invention, a multi-screen video signal for generating a multi-screen video signal to be supplied to a display means based on a received signal of a plurality of channels from a television tuner, a display means, and a television tuner. A signal generating unit, an electric field intensity detecting unit for controlling a television tuner to receive a plurality of receivable received signals of a predetermined plurality of channels, and detecting an electric field intensity of the receivable predetermined plurality of received signals, A parallel means for sequentially arranging predetermined plural channels of possible reception signals from a strong electric field strength to a weak electric field strength according to the detection result of the electric field strength detecting means, and controlling the television tuner to broadcast the predetermined plural channels. And a sequential reception control means for receiving the electric field strength in order from the strongest to the weakest by controlling the parallel means. The number of divided screens is set to N (where N is an integer of 2 or more) based on reception signals of a plurality of predetermined channels sequentially received from the television tuner in a direction of high to low electric field strength by the signal generation means. ), Among a plurality of predetermined channels sequentially arranged from a field having a strong electric field strength to a field having a weak electric field strength, a multi-screen multi-screen composed of divided screens of received images of N channels having the highest electric field strength. Since the video signal is generated, an image based on the received signal having the strongest electric field strength can be projected on each of the divided screens of the multi-screen of the display means. Can be obtained easily and quickly.

According to the second invention, a television tuner, a display means, and a multi-screen video signal generation for generating a multi-screen video signal to be supplied to the display means based on the received signals of a plurality of channels from the television tuner. Means for controlling the television tuner to receive a plurality of receivable reception signals of a plurality of receivable channels, and detecting an electric field strength of the plurality of receivable reception signals of the plurality of receivable channels; Predetermined plural channels of the received signal, according to the detection result of the electric field strength detecting means, parallel means for sequentially arranging the electric field strength from strongest to weakest, and controlling the TV tuner to broadcast the predetermined plural channels, A sequential reception control means for sequentially receiving the electric field strength from strong to weak under the control of the parallel means; The number of divided screens is set to N (where N is an integer of 2 or more) based on the reception signals of a plurality of predetermined channels sequentially received from the television tuner in the order of high to low electric field strength by the signal generation means. ), Among a plurality of predetermined channels sequentially arranged in descending order of electric field strength from weakest, the first of a multi-screen composed of divided screens of received images of N channels having the strongest electric field strength. A multi-screen video signal, a second multi-screen video signal of a multi-screen composed of divided screens of received images of N channels having the next highest electric field strength, ‥‥‥‥‥
(4) Since an M-th multi-screen video signal (where M is an integer of 2 or more) of a multi-screen consisting of divided screens of received images of N channels having a strong electric field strength is generated, the multi-screen video signal of the display means is generated. An image based on the received signal with the strongest electric field strength can be projected on each split screen of the screen,
For this reason, it is possible to obtain a television receiver that can easily and quickly select a television broadcast with a strong electric field strength and that can expand the range of the television broadcast selection.

According to the third aspect of the present invention, in the television receiver according to the first aspect of the present invention, a divided screen in a multi-screen multi-screen video signal composed of divided screens of received images of N channels having a strong electric field strength is , N received images are arranged in the order of the electric field strength, so that the same effects as those of the first aspect of the present invention can be obtained, and a television receiver capable of easily selecting the received images in the order of the strongest electric field strength can be provided. Obtainable.

According to the fourth aspect of the present invention, in the television receiver according to the first aspect of the present invention, the divided screen in the multi-screen multi-screen video signal composed of the divided screens of the received images of N channels having a strong electric field strength is provided. , N received images are arranged in order of channel number, so that the same effect as that of the first aspect of the present invention can be obtained, and a television receiver that can easily select received images in order of channel numbers is obtained. be able to.

According to the fifth aspect of the present invention, in the television receiver of the second aspect of the present invention, the first multi-screen video signal of the multi-screen consisting of the divided screens of the received images of the N channels having the strongest electric field strength. , A second multi-screen video signal of a multi-screen composed of divided screens of received images of N channels having the next highest electric field strength,.
In each of the divided screens in the M-th (where M is an integer of 2 or more) multi-screen video signal of a multi-screen composed of divided screens of received images of N channels, received images of N channels are arranged in order of electric field strength. Therefore, the same effect as that of the second aspect of the present invention can be obtained, and a television receiver that can easily select a received image in the order of increasing electric field strength can be obtained.

According to the sixth aspect of the present invention, in the television receiver of the second aspect of the present invention, a first multi-screen video signal of a multi-screen consisting of divided screens of received images of N channels having the strongest electric field strength. , A second multi-screen video signal of a multi-screen composed of divided screens of received images of N channels having the next highest electric field strength,.
In each of the divided screens in the M-th (where M is an integer of 2 or more) multi-screen video signal of a multi-screen composed of divided screens of received images of N channels, received images of N channels are arranged in order of channel number. Therefore, the same effect as that of the second invention can be obtained, and a television receiver that can easily select a received image in the order of channel numbers can be obtained.

[Brief description of the drawings]

FIG. 1 is a flowchart for explaining functions (operations) of a microcomputer of a television receiver according to a specific example of an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a circuit configuration of a television receiver according to a specific example of the embodiment of the present invention.

FIG. 3 is a diagram showing an example of a screen of a display device of the television receiver of the specific example of FIG. 2;

FIG. 4 is a characteristic curve diagram showing general reception characteristics of the television receiver.

FIG. 5 is a diagram showing an example of a screen of a display device of a conventional television receiver.

[Explanation of symbols]

1 antenna, 2 TV tuner, 3 microcomputer (control means), 4 memory, 5 keyboard,
6 color video signal processing circuit and multi-screen video signal generation circuit, 7 screens, 7a to 7i split screen, 8 display

Claims (6)

[Claims] 1. A television tuner; a display unit; a multi-screen video signal generation unit configured to generate a multi-screen video signal to be supplied to the display unit based on reception signals of a plurality of channels from the television tuner; Controlling a tuner to receive received signals of a plurality of receivable predetermined channels, and detecting an electric field strength of the received signals of the plurality of receivable predetermined channels; Parallel means for sequentially arranging a plurality of predetermined channels according to the detection result of the electric field strength detection means, from those having a strong electric field strength to those having a weak electric field strength; controlling the TV tuner to broadcast the plurality of predetermined channels, Having sequential reception control means for sequentially receiving the electric field strength from strong to weak by controlling the parallel means. Based on the reception signals of the predetermined plurality of channels sequentially received by the multi-screen video signal generation means from the television tuner in the order of high to low electric field strength, the number of divided screens is set to N (however, , N is an integer of 2 or more), the received image is divided into N channels having the strongest electric field strength among the plurality of predetermined channels sequentially arranged in descending order of electric field strength. A television receiver, wherein a multi-screen video signal of a multi-screen composed of screens is generated. 2. A television tuner; a display unit; a multi-screen video signal generation unit configured to generate a multi-screen video signal to be supplied to the display unit based on a plurality of channels of received signals from the television tuner; Controlling a tuner to receive received signals of a plurality of receivable predetermined channels, and detecting an electric field strength of the received signals of the plurality of receivable predetermined channels; Parallel means for sequentially arranging a plurality of predetermined channels according to the detection result of the electric field strength detection means, from those having a strong electric field strength to those having a weak electric field strength; controlling the TV tuner to broadcast the plurality of predetermined channels, Having sequential reception control means for sequentially receiving the electric field strength from strong to weak by controlling the parallel means. Based on the reception signals of the predetermined plurality of channels sequentially received by the multi-screen video signal generation means from the television tuner in the order of high to low electric field strength, the number of divided screens is set to N (however, , N is an integer of 2 or more), the received image is divided into N channels having the strongest electric field strength among the plurality of predetermined channels sequentially arranged in descending order of electric field strength. A first multi-screen video signal of a multi-screen composed of screens, a second multi-screen video signal of a multi-screen composed of divided screens of received images of N channels having the next highest electric field strength,. The M-th multi-screen (provided that the divided screen of the received image of the N channels having the strong electric field strength (where
(M is an integer of 2 or more) a multi-screen video signal is generated. 3. The television receiver according to claim 1, wherein the number of the divided screens in the multi-screen multi-screen video signal including the divided screens of the received images of the N channels having the highest electric field strength is N. The television receivers are arranged in the order of electric field strength. 4. The television receiver according to claim 1, wherein the number of the divided screens in the multi-screen multi-screen video signal including the divided screens of the received images of the N channels having the highest electric field strength is N. The television receivers are arranged in the order of channel numbers. 5. The television receiver according to claim 2, wherein a first multi-screen video signal of a multi-screen composed of divided screens of received images of N channels having the highest electric field strength, , A multi-screen second multi-screen video signal composed of divided screens of received images of N channels, ‥‥‥‥‥‥, a multi-screen composed of divided screens of received images of N channels having a strong electric field strength. Mth of screen
The television receiver, wherein each of the divided screens in the multi-screen video signal (where M is an integer of 2 or more) is one in which the received images of the N channels are arranged in the order of the electric field intensity. 6. The television receiver according to claim 2, wherein a first multi-screen video signal of a multi-screen including a divided screen of a received image of N channels having the highest electric field strength, , A multi-screen second multi-screen video signal composed of divided screens of received images of N channels, ‥‥‥‥‥‥, a multi-screen composed of divided screens of received images of N channels having a strong electric field strength. Mth of screen
The television receiver, wherein each of the divided screens in the multi-screen video signal (where M is an integer of 2 or more) is one in which the received images of the N channels are arranged in the order of channel numbers.