JPH0514824A - Television receiver - Google Patents

Abstract

PURPOSE:To provide a television receiver with which a viewer can see the broadcast contents of other channels periodically while seeing the picture of the channel being received. CONSTITUTION:In the television receiver which is provided with two tuners, and displays two pictures at a time by displaying the picture of the tuner of one side as a master image and the picture of the tuner of the other side as a slave image, it is constituted of a channel selection control part 11 to make the tuner for obtaining the picture of the solve image screen select successively the channels, a timer 14 capable of setting a prescribed interval of time, and a search control part 13 to control so as to display the pictures selected successively by the channel selection control part 11 on the slave image screen at every interval of time set by the timer 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver or the like capable of sequentially displaying channel images on one screen.

[0002]

2. Description of the Related Art In recent years, receivers having a built-in BS tuner capable of receiving not only terrestrial broadcasting but also satellite broadcasting (hereinafter referred to as BS broadcasting) have been developed.

In the case of such a receiver having a built-in BS tuner, as a matter of course, there is a tuner capable of receiving terrestrial broadcasting, and it has a configuration having two tuners. For this reason, in order to meet the demand that both can be viewed on the same screen, a so-called picture-in-picture (hereinafter, referred to as PIP) that simultaneously displays two main and sub-channel images on one screen on a television receiver or the like. Say)).

Incidentally, this function is described in JP-A-49-2.
This is a well-known technique as disclosed in Japanese Patent Publication No. 419.

By the way, in a television receiver having a PIP function, the broadcast images of the respective channels are simultaneously displayed on the screen so that the broadcast contents of the receiving channels of the respective broadcasts can be immediately understood, and an efficient tuning operation is performed. A technique capable of performing the above is disclosed in Japanese Patent Laid-Open No. 56-52971.

However, in the above-mentioned conventional technique, since the broadcast image of each channel is displayed on the screen at the same time, the receiving channel currently being viewed must be erased, and
There was a drawback that the operator had to perform the operation one by one when using the function.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned drawbacks, the present invention provides a television receiver capable of periodically checking the broadcast contents of other channels while watching the receiving channel that is being watched. The purpose is to provide.

[0008]

The present invention has two tuners, and an image of one tuner is used as a main channel,
In a television receiver that simultaneously displays images of the main and sub two channels using the image of the other tuner as a sub channel, a channel selecting means for sequentially selecting a tuner for obtaining an image of the sub channel when desired, It comprises a timer means capable of setting a predetermined time interval, and a control means for controlling to display the images sequentially selected by the tuning means on the sub-channel at each time interval set by the timer means. It is a television receiver.

[0009]

According to the present invention, the above-mentioned structure is adopted.
There is one tuner, and the broadcast contents of one tuner are regularly known.

[0010]

Embodiments of the present invention will be described with reference to FIGS. 1, 2 and 3. First, in FIG. 1, 1 is a terrestrial antenna, 2 is a BS broadcasting antenna, 3 is an external input terminal,
4 is a tuner for terrestrial waves, 5 is a tuner for BS broadcasting, 6 is an IF signal processing circuit, 7 is an IF signal processing circuit for BS signals,
8 is a video signal processing circuit, 9 is a PIP signal processing circuit, 16
Is a character generator that generates character signals, etc.
Reference numeral 8 is a synthesizing circuit for selectively synthesizing the signals of the video signal processing circuit 8, the PIP signal processing circuit 9, and the character generator 16, and 17 is a CRT (cathode ray tube).

Reference numeral 10 denotes an operation unit for instructing switching of channel selection and signals. Reference numeral 11 is a channel selection control unit for transmitting tuning signals to the terrestrial tuner 4 and the BS broadcasting tuner 5, switching signals, and performing control for displaying character signals on a CRT, and 12 is a nonvolatile memory storing tuning data and the like. Memory, 14 a timer for counting the real time, 15 a PIP control circuit 9 for controlling the selection of the PIP signal processing circuit 9 and the sub-screen signal, and 13 a channel selection control section 11 when a channel search is performed by the search control section. , PI
The P control unit 15 is controlled.

SW1 is a terrestrial antenna 1, BS
The switch for switching the signals from the broadcasting antenna 2 and the external input terminal 3, and the switch SW2 for selecting and switching the signal of the sub-screen.

Next, the operation of the present invention will be described. First, when a channel search is designated by the operation unit 10 (hereinafter, this function is referred to as a search window), the search control unit 13 receives the command. Next, instructing the setting of the timer 14 in order to determine the search time interval, the operator sets the search time interval using the operation unit 10. This set time is the time at which the channel search is performed every several minutes. For example, the operator can arbitrarily set every 15 minutes, 30 minutes, 60 minutes of real time, or off.

When the set time is selected, search control is started. This operation will be described with reference to the flowchart of FIG. First, when the search window function is specified, the search control unit 1
3 (for example, if you instruct to set every 15 minutes, AM
1:15, AM1: 30, AM1: 45, AM2: 00
... Performs a channel search on ...), At the set time, the signal source of the current parent screen is determined.

Next, when the signal source of this parent screen is determined,
Select another tuner for the tuner that is getting this signal source. This selection is performed as shown in Table 1, for example.

[0016]

[Table 1]

Then, the selected signal source is guided to the PIP processing circuit 9, and the PIP processing circuit 9 is operated to combine the processed signal as a child screen on the parent screen. At this time, the channel selection operation is performed so that the channel is changed every one second, and this operation is performed until the channel makes one turn. When the channel makes one turn, the channel switching is stopped, and accordingly, the output from the PIP processing circuit is also output. Stop.

Therefore, as described above, the broadcast contents of the tuner different from the tuner used on the main screen 30 can be regularly viewed on the sub screen 33 as shown in FIG.
It should be noted that the channel display 32 of the CRT display is also switched at the same time when the channel of the child screen is switched. Reference numeral 31 is a channel display on the main screen.

Further, this operation is performed every set time while the search window is designated.

Further, since the search window function stores data such as the set time in the non-volatile memory 12 once set, even if the power is turned off and then turned on, the set time is set. If so, the search window function will operate. In addition, to stop this function,
Turn off the set time.

[0021]

According to the present invention, it is possible to automatically and periodically check the broadcast content of each channel of the other tuner while watching the screen currently being viewed.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of the present invention.

FIG. 3 is a screen configuration of the present invention.

[Explanation of symbols]

 1 terrestrial antenna 2 BS broadcasting antenna 3 terrestrial tuner 5 BS broadcasting tuner 8 signal processing circuit 9 PIP signal processing circuit 10 operation unit 11 tuning control unit 12 non-volatile memory 13 search control unit 14 timer 15 PIP control SW1 switch SW2 switch

Claims (1)

Claim: What is claimed is: 1. A tuner having two tuners, wherein an image of one tuner is used as a main channel and an image of the other tuner is used as a sub-channel, and images of the main and sub-two channels are simultaneously displayed. In a television receiver, a tuning means for sequentially selecting a tuner for obtaining an image of the sub-channel at a desired time, a timer means capable of setting a predetermined time interval, and a time interval set by the timer means. A television receiver comprising: a control unit that controls so that the images sequentially selected by the channel selection unit are displayed on the sub-channel.