JPH0767061A - Multiscreen television receiver - Google Patents

Abstract

PURPOSE:To speedily select any desired program out of programs on the air by simultaneously projecting the respective broadcasting images of all the channels, for which tuning is previously registered, on a screen. CONSTITUTION:First of all, when a multi-tuning button is operated and the tuning of the desired channel to be displayed on the multi-screen is registered, reception channels registered on tuners C1-Cn are set. When the multiscreen button of a device completing the tuning registration is operated, the tuners C1-Cn output the video signals of the respective set channels to a multi-mixing part D. The mixing part D converts N pieces of channel images registered the tuning to video signals reduced into 1/N. A cathode ray tube E projects moving images E1-En for which the images received by the respective tuners C1-Cn are reduced into 1/N. Therefore, the desired program can be speedily found out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-screen television receiver capable of promptly determining a desired program from programs currently being broadcast.

[0002]

2. Description of the Related Art When a viewer does not have a program guide, etc., when deciding a desired program from the programs currently being broadcast, the broadcast contents of each channel are switched while sequentially switching channels. Need to search. Therefore, when the channel scan button is turned on so that the broadcast contents can be easily searched as described above, the receiving channels are sequentially switched at intervals of about 3 seconds, and cyclic automatic scan reception is performed between all channels. Such a television receiver has been devised.
In addition, there is a television receiving device that can superimpose only one sub screen called a sub screen on the main screen for the purpose of checking a back program.

[0003]

However, in the conventional television receiver, the broadcast contents of each channel are searched while sequentially switching the channels, and the desired program is found out from all the programs currently being broadcast. However, there was a problem that it was inconvenient because it was troublesome to tune in.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a convenient multi-screen television receiver capable of promptly selecting a desired program from programs being broadcast. To provide.

[0005]

In order to solve the above-mentioned problems, the present invention provides a television receiver in which broadcast images of all channels pre-selected and registered are displayed. The feature is that it can be displayed on the screen at the same time.

According to a second aspect of the present invention, the tuners for the number of channels that can be registered and registered, and the multi-mixing unit for simultaneously displaying the images output from the respective tuners on the screen are provided. And

According to the third aspect of the present invention, a tuner that cyclically automatically scans and receives all channels that have been previously selected and registered, and image data that is automatically scanned and received by the tuner and output is updated and stored. An image memory and a stored image mixing unit for simultaneously displaying the image data of all channels stored in the image memory on the screen are provided.

[0008]

With the above construction, in the invention of claim 1, the broadcast images of all the channels preselected and registered can be displayed on the screen at the same time. It is possible to search the broadcast contents of all channels simultaneously on the same screen,
As a result, the desired program can be selected quickly.

According to the second aspect of the present invention, the images output by the tuners of the respective reception channels that have been selected and registered in advance can be simultaneously displayed on the screen in a moving picture state. It will be possible to tune in quickly.

According to the third aspect of the present invention, the image of each channel that is scanned and received by one tuner and sequentially output is obtained by erasing the previously stored image data in the storage area of the image memory of the channel. It is sequentially updated and stored. Then, the stored image mixing unit reads out the image data of each channel stored in the image memory and simultaneously displays the image of each channel on the screen in a divided manner. Therefore, the image of each channel displayed on the screen becomes a still image until the next scan reception of the channel and becomes an image with a coarse frame feed interval, but one tuner is sufficient.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a multi-screen television receiving apparatus according to the present invention will be described below in detail with reference to FIG. 1, and a second embodiment will be described in detail with reference to FIG.

[First Embodiment] FIG. 1 is a block diagram showing a multi-screen television receiver. In FIG. 1, A is an antenna input terminal, B is a distributor, C _1, ..., C _n are tuners respectively, D is a multimixing section, and E is a cathode ray tube corresponding to a screen.

The antenna input terminal A is a portion connected to a receiving antenna (not shown). The distributor B distributes the received radio wave from the antenna input terminal A to the tuners C _1, ... C _n . The tuners C _1, ..., C _n extract the video signal from the received radio wave and output it. The multi-mixing section D receives the video signals output from the tuners C _1, ..., C _n , converts the images of the respective video signals into video signals that can be divided and displayed on the screen of the cathode ray tube E, and the cathode ray tube E. Is the part to be output to. CRT E
It receives the video signal output from the multi-mixing unit D, the image E ₁ based on the video signal _is a portion that reflects the ... E _n.

The multi-screen television receiver having the above-mentioned configuration is used and operates as follows. That is, first, the viewer operates a multi-channel selection button (not shown) prior to use to select and register a desired channel for multi-screen display. Then, the tuners C _1, ... C _n , for example, the tuner C ₁ receives one channel, the tuner C ₂ receives three channels, the tuner C ₃ receives four channels, and so on. The reception channel is set to. In addition, this tuning registration is performed by the tuner C _1, ... C
_Although the number N of _n tuners is possible, but when the number of receivable stations is large and exceeds the number N of tuners C _1, ... C _n , preferentially register the channel that the viewer likes. Becomes

In the multi-screen television receiving device in which the selection of the multi-screen display is completed as described above, when the viewer operates the multi-screen button (not shown), the tuners C _1, ... C _n are displayed. Outputs the video signal of each set channel to the multi-mixing section D. The multi-mixing section D receiving the respective video signals, although the size of the image is reduced to 1 / N, the N channels selected and registered by operating the multi-selection button (not shown). Is converted into a video signal that can be displayed on the screen of the cathode ray tube E at the same time, and then output to the cathode ray tube E. Then, the cathode-ray tube E displays moving image images E _1, ... E _n obtained by reducing the images received by the tuners C _1, ... C _n to 1 / N. It should be noted that the channel numbers of the moving image images E _1, ..., E _n can be superimposed and displayed.

Therefore, the viewer can check what kind of program is being broadcast on each channel from the cathode ray tube E at a glance, and can quickly find a desired program. Then, the viewer who finds the desired program sets the desired channel found by using the normal mode button (not shown). Then, the image displayed on the screen of the cathode ray tube E becomes a large image of only the desired channel, and the viewer can watch the desired channel.

[Second Embodiment] FIG. 2 is a block diagram showing a multi-screen television receiver. In FIG. 2, A is an antenna input terminal, C ₀ is a tuner capable of automatic scan reception, M is an image memory, F is a stored image mixing unit,
E is a cathode ray tube corresponding to a screen.

The antenna input terminal A is a portion connected to a receiving antenna (not shown). The tuner C ₀ extracts a video signal from a radio wave received from the antenna input terminal A and outputs the video signal. The tuner C ₀ also has a function of cyclically automatically receiving the channels selected in advance at intervals of about 3 seconds. ing.

The image memory M is a readable / writable storage unit capable of storing image data included in the video signal from the tuner C ₀ , and is a memory for the number of channels (the number of stations) N of the tuner C ₀ that can be pre-selected and registered. Areas M _1, ... M _n are provided. The memory areas M _1, ... M _n are assigned as dedicated areas for one of the channels preselected and registered.

The stored image mixing section F converts the respective images into image signals which can be divided and displayed on the screen of the cathode ray tube E based on the respective image data stored in the memory areas M _1, ... M _n of the image memory M. This is a part that is converted and output to the cathode ray tube E. CRT E receives the video signal output from the stored image mixing unit F, the image E ₁ based on the video signal _is a portion that reflects the ... E _n.

The multi-screen television receiver having the above-mentioned configuration is used and operates as follows. That is, first, the viewer operates a multi-channel selection button (not shown) to select and register a desired channel for multi-screen display prior to use. Although this channel selection registration is possible for the number N of the memory areas M _1, ... M _n of the image memory M, _if the number of receivable stations exceeds many N and the number of receivable stations exceeds N, the viewer's preference is The channel of will be registered with priority.

In the multi-screen television receiving device in which the selection of the multi-screen display has been registered as described above, when the viewer operates the multi-screen button (not shown), the tuner C ₀
Automatically and cyclically scans channels pre-selected and registered from a multi-channel selection button (not shown) at intervals of about 3 seconds, and sequentially outputs video signals of the respective channels. Then, the image data included in the video signals of the sequentially output channels are written in the memory area of the corresponding channel in the memory areas M _1, ... M _n of the image memory M, and the memory area of the corresponding memory area is stored. The image data from the previous scan is updated.

By the way, the stored image mixing section F determines the size of the image to be 1 / based on the respective image data stored in the memory areas M _1, ... M _n of the image memory M.
Although it is reduced to N, the images of the N channels selected and registered by the operation of the multi-tuning button (not shown) are constantly converted into video signals that can be displayed on the screen of the cathode ray tube E at the same time. , And output to the cathode ray tube E. Therefore, the cathode-ray tube E reduces the image of N channels selected and registered by the operation of the multi-channel selection button (not shown) to 1 / N size, respectively, and has a coarse frame feed image E _1, ... E
project _n . It should be noted that the channel numbers of the moving image images E _1, ..., E _n can be superimposed and displayed.

Therefore, the viewer can check what kind of program is being broadcast on each channel from the cathode ray tube E at a glance, and can quickly find the desired program. Therefore, the viewer who finds the desired program sets the desired channel found by using the normal mode button (not shown). Then, the tuner C ₀ receiving the automatic scan is in a state of receiving only the found desired channel, and the CRT E
The image displayed on the screen is a moving image of a normal size having only the desired channel. Therefore, the viewer can watch the desired channel.

[0025]

Since the multi-screen television receiving apparatus of the present invention is configured as described above, in the invention of claim 1, many images of a program being broadcast are simultaneously displayed on one screen. Since the program can be viewed, it is possible to quickly select a desired program from the programs being broadcast. In the invention according to claim 2, in addition to the above effects, a moving image can be displayed on one screen. In addition to the above effects, an excellent multi-screen television receiver is provided, in which many tuners can be seen at the same time, and one tuner is sufficient although a frame-advanced image is obtained. Has the effect of being able to.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a multi-screen television receiving device according to the present invention.

FIG. 2 is a block diagram showing another embodiment of the multi-screen television receiving device according to the present invention.

[Explanation of symbols]

C _n tuner (where n is an integer of 0, 1, 2, ... N) D multi-mixing unit E screen F memory image mixing unit M image memory

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[Procedure amendment]

[Submission date] March 2, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction content]

The antenna input terminal A is a portion connected to a receiving antenna (not shown). The tuner C ₀ extracts and outputs a video signal from a radio wave received from the antenna input terminal A, and has a function of cyclically automatically scanning and receiving channels pre-selected and registered at intervals of several tens of milliseconds to several seconds. It also has

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0022

[Correction method] Change

[Correction content]

In the multi-screen television receiving device in which the selection of the multi-screen display has been registered as described above, when the viewer operates the multi-screen button (not shown), the tuner C ₀
Automatically cyclically scans and receives channels pre-selected and registered from a multi-channel selection button (not shown) at intervals of several tens of milliseconds to several seconds , and sequentially outputs video signals of the respective channels. Then, the image data included in the video signals of the sequentially output channels are written in the memory area of the corresponding channel in the memory areas M _1, ... M _n of the image memory M, and the memory area of the corresponding memory area is stored. The image data from the previous scan is updated.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0023

[Correction method] Change

[Correction content]

By the way, the stored image mixing section F determines the size of the image to be 1 / based on the respective image data stored in the memory areas M _1, ... M _n of the image memory M.
Although it is reduced to N, the images of the N channels selected and registered by the operation of the multi-tuning button (not shown) are constantly converted into video signals that can be displayed on the screen of the cathode ray tube E at the same time. , And output to the cathode ray tube E. Therefore, the cathode-ray tube E reduces the image of N channels selected and registered by the operation of the multi-channel selection button (not shown) to 1 / N size, respectively, and has a coarse frame feed image E _1, ... E
project _n . It should be noted that the images E _1, ... the E _n, each of the channel number is also to be able to display superimposed.

Claims (3)

[Claims] 1. A multi-screen television receiving device, wherein the television receiving device is capable of simultaneously displaying, on a screen, broadcast images of all channels pre-selected and registered. 2. The multi-screen according to claim 1, further comprising: a number of tuners that can be registered and registered, and a multi-mixing unit that simultaneously displays the images output from the respective tuners on the screen. TV receiver. 3. A tuner for cyclically automatically scanning and receiving all channels pre-selected and registered, an image memory for updating and storing image data output by receiving and automatically scanning the tuner, and a memory for storing the image memory. 2. The multi-screen television receiving apparatus according to claim 1, further comprising a storage image mixing unit that simultaneously displays the image data of all the channels being displayed on the screen.