KR19990021593U - Program information display system - Google Patents

Abstract

The present invention is a mother screen processing unit that tunes the broadcast signal of the first channel by the channel selection signal input according to the user's selection and outputs the video signal, and the broadcast signal of other channels except the first channel according to the user's selection A sub picture processing unit which selects and outputs an image signal by inputting a preset channel signal, and a PIP processing unit which mixes a plurality of image signals output from the mother screen processing unit and the sub picture processing unit according to an input control signal and displays them on a CRT screen. The present invention relates to a PIP-type television comprising: a user selects a program information display mode using a key input means, and the control unit recognizes the preset information signal of a channel other than the first channel output on the screen by a predetermined time interval. To the sub picture processing unit, and to output the operation signal to the PIP processing unit. Program information of another channel is output through the previous sub-screen, so that it is not necessary to switch channels or search newspapers to know program information of other channels.

Description

Program information display system

The present invention relates to the display of program information of a television, and in particular, when a user watches a certain program by displaying the information of a program broadcast on another channel as a sub-screen so that the user can know the information of the program broadcast on another channel. It relates to a program information display system of a television that can be prevented from the hassle of switching.

In general, viewers are pursuing home automation, which is being realized more by technological advancement. For example, consumers are pursuing the convenience of watching television, such as a remote control television that can remotely control a television. .

In addition, in order to satisfy the preferences of modern people who tend to be specialized and specialized, the broadcasts are privatized in addition to the existing conventional radio television broadcasts to handle only certain broadcast programs (eg, music, news, movies, ...). Cable TV (hereinafter referred to as CATV) broadcasting has been started, which has resulted in a large number of television channels.

Therefore, in order to learn this in the flood of information and to enjoy their own mental pleasures, the user selects and watches the program he wishes to watch from among the programs of many channels, among which the most preferred program is from the start time. I want to watch it completely.

However, in the conventional television, while the viewer is watching a program of a specific channel received from a broadcasting station, the viewer cannot know the title and the start time of the program broadcast on the other channel. In order to obtain the channel, a predetermined key formed on the remote controller and the key panel was pressed to switch channels or to purchase a newspaper and the like to check the title and start time of a program of another channel broadcasted in the corresponding time zone.

As a result, the viewer has a hassle to operate a plurality of keys in order to check a program being broadcast on another channel, and the viewer has to find a newspaper to know the title and start time of the broadcast program. Discomfort occurred for.

In addition, as described above, a method of acquiring program information of another channel by performing key operation a plurality of times, or a method of finding television program information in a newspaper, may be performed by changing a channel or reading a newspaper while watching a program. There was a problem that the content of the program that was watched was cut off because the predetermined part could not be viewed.

Prior art for solving the above-mentioned conventional problems is shown in Republic of Korea Application No. 97-42613. Briefly referring to the prior art with reference to FIG. 1, a program information display mode signal is output in a television receiving a signal transmitted from a broadcasting station including a KBPS code through a tuner (1a) (1b) and outputting it on a CRT. A key input means 2, tuners 1a and 1b for receiving a broadcast signal of a channel according to the selected channel signal, and a KBPS detector for detecting a KBPS code from a broadcast signal received through the tuner 1b ( 4), the OSD unit 6 for outputting specific character information on the CRT by the input operation control signal, and the tuner 1b if there is a program information display mode signal input from the key input means 2; And a controller 7 for outputting a channel selection signal for each channel and outputting an operation control signal corresponding to the signal output from the KBPS detection unit 4 to the OSD unit 6. To the program information of the channel to be output as a subtitle.

However, in the above-described prior art, since the KBPS code is transmitted from broadcasting stations at predetermined intervals, there is a problem that the user cannot know the information when the program is changed according to the circumstances of the broadcasting station. Since the characters appear on the screen, there was a problem that the viewer does not have accurate information about the main character or the contents of the program when viewing only the program information.

The present invention for solving the above problems is to display the information of the program being broadcast on the other channel as a sub-screen when watching a predetermined program so that the user can know the information of the program being broadcast on the other channel. It is an object of the present invention to provide a program information display system of a television which can prevent the inconvenience of switching.

1 is a block diagram illustrating a conventional program information display system.

Figure 2 is a block diagram showing a program information display system according to the present invention.

Explanation of symbols on the main parts of the drawings

10a, 10b: tuner 30a, 30b: image processing unit

40: voice processing unit 50: speaker

60: PIP IC 100: Microcomputer

A feature of the present invention for achieving the above object is, a mother screen processing unit for tuning the broadcast signal of the first channel by the channel selection signal input according to the user's selection and output as a video signal, and other channels except the first channel A sub-screen processing unit for tuning the broadcast signal according to a user's selection and outputting it as an image signal, and mixing a plurality of video signals output from the mother screen processing unit and the sub-screen processing unit according to input control signals. A PIP type television comprising a PIP processing unit for displaying on a CRT screen, comprising: key input means for outputting a program information display mode signal according to a user's selection, and if there is a program information display mode signal input from the key input means; Preset time intervals for preset signals from channels other than the first channel As characters, and output to the display processing section, and to the characterized in that it comprises a control unit that outputs an operation signal to the PIP processing unit output through the display unit the video signal of the other channel.

In addition, an additional feature of the present invention is that the control unit counts the driving time from the moment when the television is operated. It sequentially outputs at intervals, and outputs an operation signal to the PIP processing unit.

Hereinafter, a preferred embodiment according to the present invention with reference to the accompanying drawings as follows.

2 is a block diagram showing a configuration of a television including a system for displaying information of another channel program according to the present invention.

The television includes a key input unit 5 for selecting various operation modes (program information display, tuning, volume adjustment, screen adjustment, child lock setting and release, etc.), and a television according to a signal output from the key input unit 5; A control unit 100 for performing a corresponding function by operating a specific device constituting the control unit, and a radio transmitted from a broadcasting station by a channel tuning signal output from the control unit 100 according to a channel selected by the user through the key input unit 5. Local oscillation in the main tuners 10a and 10b for receiving the high frequency signal through the antenna ANT and extracting the tuned frequency bands, and in the frequency band signals of the channels tuned through the main tuners 10a and 10b. IF signal 20a and 20b for detecting an intermediate frequency according to the signal, and image signal P and audio signal S are separated from the signal output from the IF detector 20a and 20b. (P) with the luminance signal After separating into color signals, each color band is extracted from the color signals and demodulated by the image processing unit 30a and 30b, and the audio signal separated from the image processing unit 30a is received and demodulated by a control signal input. The audio processor 40 is amplified to a predetermined size and displayed to the outside through the speaker 50, and the video signal of the subchannel output from the image processor 30b is reduced to a predetermined size by an input operation control signal. PIP IC 60 for outputting a sub-channel video signal to a predetermined corner of the screen by an operation control signal output from the control unit 100 in accordance with the plurality of synchronization signals output from 30a and 30b; And a synthesis processor 70 for synthesizing a plurality of video signals and outputting them on the CRT 80.

The operation of the television having the above-described configuration will be described in more detail below in accordance with the program information display system of the present invention.

When the user selects a specific channel using the key input unit 5 to watch a specific program, the control unit 100 outputs the corresponding tuning signal to the main tuner 10a, and the main tuner 10a selects an input channel. A predetermined frequency band is detected from the broadcast signal received through the antenna ANT according to the signal, and then output to the IF detector 20a.

A signal having a predetermined frequency band input to the IF detector 20a detects an intermediate frequency from the IF detector 20a, and the signal output from the IF detector 20a receives an image signal P from the image processor 30a. ) And the audio signal S, the video signal P is output to the rear end through a predetermined process. In addition, the audio signal S separated by the image processor 30a is output to the outside through the speaker 50 through a predetermined process by the audio processor 40.

As described above, while the viewer watches a specific program, the control unit 100 operates a built-in timer (not shown) from the moment when the television is operated to count the operating time of the television, and then inputs the key input unit within a predetermined time. From 5), it is determined whether there is a program information display mode signal input.

If there is a program information display mode signal input through the key input unit 5 before the predetermined time elapses in the determination process, the controller 100 is preset for each channel recorded in the built-in memory (not shown). The preset signals are output to the sub-tuner 10b in a predetermined order at predetermined time intervals so that a plurality of channels are tuned in a predetermined order and an operation signal is output to the PIP IC 60. In addition, even if there is no input of the program information display mode signal for a predetermined time in the determination process, if a predetermined time elapses, the controller 100 automatically switches to the program information display mode and transmits a plurality of channel tuning signals to the sub-tuner 10b. The output signal is output in a predetermined order at predetermined time intervals, and an operation signal is output to the PIP IC 60.

The broadcast signal detected by the sub-tuner 10b by the process described above is passed through the IF detector 20b and the image processor 30b, and then input to the PIP IC 60 to be reduced to a predetermined specific size. And output to the synthesis processing unit 70. The synthesis processing unit 70 mixes and processes the signal output from the image processing unit 30a of the main channel and the plurality of image signals output from the PIP IC 60 to process the CRT 80. Output to phase

Therefore, according to the present invention, the user can quickly see the program information of the other channel through the sub-screen with a simple key operation while watching the program of the specific channel. You do not need to find a newspaper.

According to the present invention operated as described above, the user can watch a program of another channel through a sub-screen with a simple key operation while watching a specific program, so that the channel can be switched to know the program title and the broadcast time of the other channel. There is no need to find a newspaper or a newspaper, so that the disconnection of the program being watched is not generated, and thus the user's satisfaction with watching TV is greatly improved.

Claims (2)

A mother screen processing unit which tunes a broadcast signal of a first channel according to a tuning signal input according to a user's selection and outputs it as an image signal, and a broadcasting station inputting a broadcast signal of other channels except the first channel according to a user's selection And a PIP processing unit for mixing the plurality of video signals outputted from the mother screen processing unit and the sub-screen processing unit according to input control signals and displaying them on a CRT screen. For PIP televisions: Key input means for outputting a program information display mode signal according to a user's selection; When the program information display mode signal is input from the key input unit, the control unit outputs the channel selection signals of the other channels except the first channel to the sub picture processor sequentially at predetermined time intervals, and outputs an operation signal to the PIP processing unit. Program information display system comprising a. The apparatus of claim 1, wherein the control unit counts the driving time from the moment when the television is operated, and when the predetermined time elapses even if there is no input of the program information display mode signal, the control unit transmits the channel selection signal of the other channel at a predetermined time interval. And sequentially outputting the operation signal to the PIP processing unit.