KR19980048126A - How to display other broadcasting content on TV with K function - Google Patents

Abstract

The present invention relates to a method of displaying other broadcasting contents in a television having a K data receiving function. More specifically, the present invention relates to a broadcasting content of another broadcasting station which is not currently viewed through a sub tuner while watching a broadcasting using a main tuner. The present invention relates to a method of displaying other broadcast contents in a television having a K function of extracting from K data contained in a broadcast signal and displaying the characters as characters on a television screen.

According to another aspect of the present invention, there is provided a method of displaying other broadcasting contents in a television having a K function, wherein a main tuner 1 connected to an antenna and a first signal amplifier for modulating a signal from the main tuner 1 and outputting a CVS signal (2), a main IC unit 3 for modulating and outputting the CVS signal into R, G, and B signals, a subtuner 4 connected to an antenna, and a modulator for modulating signals from the subtuner 4; The data slice unit 11 for separating the immediately K data contained in the CVS signal from the 2IF amplification unit 5, and the signal input from the data slice unit 11 are demodulated and stored in the DRAM 13 and then microcomputered. A two-tuner television comprising a KBPS decoder 12 for exchanging data with (7) and an OSD generator (9) for displaying a specific character by control data from the microcomputer (7). A first step of waiting for an input of another broadcast program confirmation mode from a viewer; A second step in which the microcomputer 7 outputs a control signal to change a channel of the sub-tuner 4 which is not outputted by the current broadcast signal when another broadcast program confirmation mode is input; A third step of detecting the K data including the broadcast program data among the broadcast signals output from the sub-tuner 4 by the data slice unit 11 and the KBPS decoder 12 and transmitting the broadcast data to the microcomputer 7; ; A fourth step of outputting a control signal to the OSD generator 9 so that the microcomputer 7 outputs a specific character by using the broadcast data input from the KBPS decoder 12; And an OSD character signal currently output from the R, G, and B signals and the OSD text signal output from the OSD generator 9 and displayed on the television CRT 8 by synthesizing by the main IC unit 3.

Description

How to display other broadcasting content on TV with K function

The present invention relates to a method of displaying other broadcasting contents in a television having a K data receiving function. More specifically, the present invention relates to a broadcasting content of another broadcasting station which is not currently viewed through a sub tuner while watching a broadcasting using a main tuner. The present invention relates to a method of displaying other broadcast contents in a television having a K function of extracting from K data contained in a broadcast signal and displaying the characters as characters on a television screen.

In order to increase the added value of TV, various types of services such as teletext displaying characters on TV screens and direct K data service by KBPS (Korea Broadcast Program System) are provided or will be provided in the future. It is speeding up technology development.

In the K service, various data such as a name, time data, or clock data indicating a current time of a program currently broadcast in a certain period (VBI) of an analog signal are superimposed and transmitted in digital form. In the TV including the K data receiving device, the K data is input and used to schedule recording of a specific program or to recognize the current time and adjust the clock embedded in the TV.

On the other hand, in a conventional television, in order to check the broadcast contents of a channel other than the broadcast which the viewer is currently watching, a channel change signal must be input to the TV controller, which means that the broadcast contents being watched are interrupted. In order to solve this problem, broadcast viewing is disturbed.

The present invention is to improve the user's convenience in the two-tuner television having the K data receiving function as described above, and an object of the present invention is to broadcast contents of other broadcasting stations without changing the channel of the broadcasting station that the viewer is currently watching. The present invention provides a method for displaying other broadcasting contents on a television having a K function.

According to another aspect of the present invention, there is provided a method of displaying other broadcasting contents in a television having a K function, and modulating a signal from the main tuner 1 connected to an antenna and a signal from the main tuner 1 and outputting it as a CVS signal. From the first signal amplifier 2, the main IC unit 3 for modulating the CVS signal into R, G, and B signals, and outputting the sub-tuner 4 and the sub-tuner 4 connected to the antenna. The data slice unit 11 for separating the immediately K data contained in the CVS signal from the second IF amplifying unit 5 which modulates the signal of the signal, and the signal inputted from the data slice unit 11 are demodulated, and the DRAM ( 13) A two-tuner television comprising a KBPS decoder 12 for storing and exchanging data with a microcomputer 7, and an OSD generating unit 9 for displaying a specific character by control data from the microcomputer 7. In the microcomputer 7, the viewer enters another program confirmation mode. A first step of groups; A second step in which the microcomputer 7 outputs a control signal to change a channel of the sub-tuner 4 which is not outputted by the current broadcast signal when another broadcast program confirmation mode is input; A third step of detecting the K data including the broadcast program data among the broadcast signals output from the sub-tuner 4 by the data slice unit 11 and the KBPS decoder 12 and transmitting the broadcast data to the microcomputer 7; ; A fourth step of outputting a control signal to the OSD generator 9 so that the microcomputer 7 outputs a specific character by using the broadcast data input from the KBPS decoder 12; And an OSD character signal currently output from the R, G, and B signals and the OSD text signal output from the OSD generator 9 and displayed on the television CRT 8 by synthesizing by the main IC unit 3.

1 is a schematic block circuit diagram of a two-tuner television including a K function.

Fig. 2 is a front view of a television showing an example of characters for displaying contents of a broadcast program of another broadcasting station displayed on a television CRT by the method of the present invention;

3 is a flowchart for explaining the method of the present invention.

* Description of the symbols for the main parts of the drawings *

1: main tuner, 2: 1st IF signal amplifier,

3: main IC, 4: sub tuner,

5: second IF signal amplifier, 6: CRT driving and deflection unit,

7: micom, 8: CRT,

9: OSD generator, 11: data slice unit,

12: KBPS decoder, 13: DRAM.

Hereinafter, with reference to the accompanying drawings will be described in detail the other broadcasting content display method in the TV having a K function of the present invention in detail.

FIG. 1 is a block circuit diagram of a television having a two-tuner and a K data receiving function in which the method of the present invention is performed. The specific broadcasting station frequency signal received by the main tuner 1 connected to the antenna is input to the first IF signal amplifier 2. The first IF signal amplifier 2 modulates the signal from the main tuner 1 and outputs it as a CVS signal. After passing through the main IC unit 3 for modulating and outputting the CVS signal into R, G, and B signals, the CVS signal is outputted as a video and audio signal on the CRT 8 by the CRT driving unit and the deflection unit 6.

On the other hand, the CVS signal from the sub-tuner 4 connected to the antenna and the second IF amplifier 5 modulating the signal from the sub-tuner 4 passes directly through the data slice unit 11 for separating the K data. After that, the signal input from the data slice unit 11 is demodulated and stored in the DRAM 13 and input to the KBPS decoder 12 that exchanges data with the microcomputer 7. The microcomputer 12 has a program for controlling a television.

The method of the present invention performed using the circuit as described above comprises: a first step of waiting for an input of another broadcast program confirmation mode from a viewer in a microcomputer (7); A second step in which the microcomputer 7 outputs a control signal to change a channel of the sub-tuner 4 which is not outputted by the current broadcast signal when another broadcast program confirmation mode is input; A third step of detecting the K data including the broadcast program data among the broadcast signals output from the sub-tuner 4 by the data slice unit 11 and the KBPS decoder 12 and transmitting the broadcast data to the microcomputer 7; ; A fourth step of outputting a control signal to the OSD generator 9 so that the microcomputer 7 outputs a specific character by using the broadcast data input from the KBPS decoder 12; And a step of synthesizing the currently broadcast R, G, B signals and the OSD text generation signal output from the OSD generation section 9 by the main IC section 3 and displaying them on the television CRT 8, FIG. This will be described in detail with reference to the flowchart.

The method of the present invention is performed only after the other broadcast program confirmation command is input by the viewer. This is to prevent the interference of the screen while watching TV. This command is input through a remote control or a function key attached to the television.

The microcomputer 7 fixes the broadcast currently output through the main tuner 1 when another broadcast program confirmation command is input, and outputs a control signal to the sub tuner 4 to change the channel. At this time, the channel change command sequentially searches all set channels and outputs a control signal to reach the channel currently being broadcast through the CRT (8). Therefore, the program display characters are sequentially displayed on the CRT 8 screen.

When the channel of the sub tuner 4 is changed, the received broadcast station is changed accordingly, and new program data is input. The input broadcast signal is output after being modulated into a CVS signal while passing through the sub tuner 4 and the second IF signal amplifier 5.

The CVS signal passes through the data slice unit 11 and the KBPS decoder 12 and extracts data of a broadcast program currently received through the sub-tuner 4, for example, data such as a broadcast name and a broadcast time. 13). Thereafter, the KBPS decoder 12 notifies the microcomputer 7 of the received broadcast data.

The microcomputer 7 outputs character control data in order to output characters corresponding to the data when other broadcast program data is input. The character output data is stored in a memory or the like connected to the microcomputer 7 after being predetermined.

The character output data is input to the OSD generator 9. The OSD generating unit 9 outputs a specific character corresponding to the input character output data, and the characters output from the OSD generating unit 9 are image signals of the main tuner 1 from the main IC unit 3. Are mixed. This mixed signal passes through the CRT driving section and the deflection section 6 and is displayed on the CRT 8.

Fig. 2 is a front view of a television showing the display state of the characters output as described above. An image is displayed on the CRT 8, and a sound signal is output through the speaker. At the same time, the lower part of the CRT 8 indicates that the broadcast program in the KBS1 broadcasting station is KBS news 9.

As described above, after the broadcast program of the KBS1 broadcasting station is displayed in letters, the microcomputer 7 again outputs a control signal to the subtuner 4 to instruct a channel change. When the channel is changed in the sub-tuner 4, a signal of a new broadcasting station is input through the data slice unit 11 and the KBPS decoder 12, and the contents of the broadcasting program of the new broadcasting station are displayed as shown in FIG. Denotes as.

This other broadcast program confirmation process is continued until the channel of the sub-tuner 4 becomes the same channel as the channel of the main tuner 1. If it is found that the channel is the same, the microcomputer 7 ends the other broadcast program confirmation command.

As described above, when the contents of another broadcast program are displayed on the CRT 8 as text, the viewer can change the channel to the channel in which the program to be viewed and viewed. In this way, the viewer can check other broadcast programs without having to change the channel of the broadcast currently being viewed.

As described above, according to the present invention, there is an advantage that the viewer can visually check the broadcasting contents of other broadcasting stations without changing the channel of the broadcasting station currently being viewed.

Although the invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that modifications and variations can be made within the spirit and scope of the invention, and such variations or modifications will belong to the appended claims. .

Claims (2)

A main tuner 1 connected to the antenna, a first signal amplifier 2 for modulating a signal from the main tuner 1 and outputting it as a CVS signal, and modulating the CVS signal into R, G, and B signals Outputs the main IC unit 3, the sub-tuner 4 connected to the antenna, and the immediately K data contained in the CVS signal from the second IF amplifier 5 modulating the signal from the sub-tuner 4. A data slice unit 11 for demodulating, a KBPS decoder 12 for demodulating the signals inputted from the data slice unit 11 and storing them in the DRAM 13 and exchanging data with the microcomputer 7; In a two-tuner television comprising an OSD generator 9 for displaying a specific character by control data from A first step of waiting for an input of another broadcast program confirming mode from the viewer in the microcomputer 7; A second step in which the microcomputer 7 outputs a control signal to change a channel of the sub-tuner 4 which is not outputted by the current broadcast signal when another broadcast program confirmation mode is input; A third step of detecting the K data including the broadcast program data among the broadcast signals output from the sub-tuner 4 by the data slice unit 11 and the KBPS decoder 12 and transmitting the broadcast data to the microcomputer 7; A fourth step of outputting a control signal to the OSD generator 9 so that the microcomputer 7 outputs a specific character by using the broadcast data input from the KBPS decoder 12; And The R, G, B signal currently being broadcast and the OSD text signal output from the OSD generator 9 are synthesized by the main IC unit 3 and displayed on the television CRT 8. Method of displaying other broadcasting content on television. The method of claim 1, wherein the channel change of the sub-tuner 4 is performed sequentially and is performed until the same broadcast channel as the broadcast channel currently output from the main tuner 1 is tuned. How to display other broadcast content on your television.