KR20080102861A

KR20080102861A - Favorite program changing method for digital television

Info

Publication number: KR20080102861A
Application number: KR1020070049853A
Authority: KR
Inventors: 김성덕
Original assignee: 주식회사 대우일렉트로닉스
Priority date: 2007-05-22
Filing date: 2007-05-22
Publication date: 2008-11-26

Abstract

The present invention relates to a method for changing a preferred program of a digital TV which changes a channel currently being watched into a channel for broadcasting a preferred program while watching a digital TV, comprising: determining whether a key signal is continuously input and continuously inputting the key signal. If there is a channel for broadcasting the currently-preferred preferred program, and if there is a channel for broadcasting the preferred program, tuning a channel for broadcasting the preferred program. According to the present invention configured as described above, it is possible to watch a preference program by simple key operation for changing the preference channel.

Description

Favorite program changing method for digital television

1 is a block diagram of a digital TV according to an embodiment of the present invention.

2 is a method for changing a preferred program of a digital TV according to an embodiment of the present invention.

10: tuner demodulator

20: data separator

30: audio decoder

40: video decoder

50: micom

60: key input unit

70: memory section

The present invention relates to a digital TV, and more particularly, to a method for changing a preferred program of a digital TV that changes a channel currently being viewed while watching a digital TV into a channel for broadcasting a preferred program.

In general, the expected number of channels of digital television is several times that of current analog television.

Thus, in digital broadcasting, the provision of dozens or hundreds of channels increases the choice of viewers, and at the same time makes program selection more complex.

In order to solve the above problems, all channels stored in the digital TV are designated as preferred channels through a channel editing function. At this time, the user determines only whether the preferred channel is set for the selected channel.

Therefore, when the user wants to switch channels on the current broadcast channel when watching not only digital broadcasting but also over-the-air broadcasting and cable broadcasting, when a user inputs a preferred channel key signal through a remote controller or a key panel, the channel numbers of the preferred channels are changed in order.

Recently, a user can register a keyword for a favorite program as well as the above-mentioned favorite channel, store a program matching the keyword as a favorite program, and search for and notify whether the stored favorite program is broadcast on another channel. You can watch your favorite programs more conveniently.

However, the conventional preferred program has a problem in that the user prefers to operate the key separately or the user preferentially checks whether the preferred program is being broadcast for each preferred program.

The present invention has been made to improve the above-described problem, and when a preferred channel key signal is input, the present invention checks whether there is a channel broadcasting the current favorite program over the entire channel, and if there is a channel broadcasting the current favorite program, The objective is to provide a way to change the digital TV preference program that caused the change.

The present invention devised to achieve the above object is as follows. The method of changing the preferred program of the digital TV according to the present invention includes determining whether a key signal is continuously input, checking whether a channel for broadcasting a currently-preferred preset program exists when the key signal is continuously input, and And if there is a channel for broadcasting the preferred program, tuning a channel for broadcasting the preferred program.

If a channel for broadcasting the preferred program does not exist, the preferred channel corresponding to the channel number after the channel number of the channel currently being viewed may be tuned.

If the key signal is not continuously input, the preferred channel corresponding to the channel number after the channel number of the channel currently being viewed is characterized in that the tuning.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a digital TV according to an exemplary embodiment of the present invention, and FIG. 2 is a diagram illustrating an example of setting a preferred program according to an exemplary embodiment of the present invention.

The digital TV according to the embodiment of the present invention includes a tuner demodulator 10, a data separator 20, an audio processor 30, a video processor 40, a microcomputer 50, a key input unit 60, and a memory unit ( 70).

First, the tuner demodulator 10 receives digital broadcast data from a broadcasting station and demodulates the received digital broadcast data into a digital data stream.

The data separator 20 receives the digital data stream from the tuner demodulator 10 and demultiplexes the audio data stream and the video data stream.

The audio processor 30 receives the audio data stream from the data separator 20 and decodes the audio data stream into an analog audio signal and outputs the same through a speaker (not shown).

The video processor 40 receives the video data stream from the data separator 20 and decodes the video data stream into an analog video signal and outputs the same through an LCD (Liquid Crystal Display) or a CRT (Cathod Ray Tube).

The memory unit 70 stores various types of information for controlling the operation of the digital TV according to the exemplary embodiment of the present invention, and stores various kinds of information about the preferred channel and the preferred program.

The key input unit 60 outputs various key signals according to a user's key operation. The key input unit 60 includes a preferred channel key (not shown) to output key signals for changing a preferred channel and changing a preferred program.

For reference, the present embodiment has been described using the preferred channel key as an example. However, the present invention is not limited thereto, and the technical scope of the present invention may use a separate key for changing the preferred channel other than the preferred channel key.

The microcomputer 50 reads information on a preset preferred channel or a preferred program in response to the input of the preferred channel key signal input from the key input unit 60 to broadcast the preferred channel or the preferred program. To tune the channel.

Hereinafter, the control process of the microcomputer 50 will be described in detail with reference to FIG. 3, which illustrates a method of changing a preferred program of the digital TV.

3 is a method for changing a preferred program of a digital TV according to an embodiment of the present invention.

In the preferred TV program changing method according to an embodiment of the present invention, when a preferred channel key signal is input from the preferred channel key provided in the key input unit 60 (S10), the key signal is preset for a predetermined time. It is determined whether the input is continuously (S20).

At this time, if the preferred channel key signal is not continuously input for a predetermined time or more, the microcomputer 50 controls the tuner demodulator 10 to tune the preferred channel corresponding to the channel number after the channel number of the currently tuned channel ( S50), the digital broadcast data of the preferred channel is subjected to signal processing through the data separator 20, the audio processor 30, and the video processor 40, and then output.

On the other hand, if the preferred channel key signal is continuously input for a predetermined time or more, the microcomputer 50 controls the tuner demodulator 10 to display a channel where the current preferred program is broadcasted over the entire channel where the digital broadcast data is received. Check whether there exists (S30).

Here, to confirm whether the current favorite program is broadcast in each channel, first, the channel is changed over the entire channel while the user sets the preferred program. At this time, the PSIP (Program and system Information protocol) information is extracted from the digital broadcast data received through each channel, and the program information of the corresponding channel is extracted from the Extended Information Table (EIT) information among the PSIP information, and the program information is used. It determines whether or not it is a preferred program by checking whether the information matches the information on the selected preferred program.

As described above, since a person skilled in the art can easily search whether a current favorite program is being broadcast for another channel while watching the current channel, a detailed description thereof will be omitted here.

On the other hand, if there is no channel broadcasting the current favorite program by checking whether there is a channel broadcasting the current preferred program, the tuner demodulator 10 is controlled to tune the preferred channel that is the channel number after the current channel number (S50). And outputs a video signal and an audio signal of digital broadcast data of the preferred channel.

On the other hand, if there is a channel currently broadcasting the preferred program, the tuner demodulator 10 controls the channel broadcasting the preferred program (S40) and the video signal of the digital broadcast data through the above-described signal processing process Output audio signal.

That is, in the method of changing the preferred program of the digital TV according to the embodiment of the present invention, if the preferred channel key signal provided in the key input unit 60 is continuously input for a predetermined time or more, the user-preferred program set by the user is broadcast on another channel. If the favorite program is being broadcast, it is possible to change both the favorite channel and the favorite program only through the operation of the favorite channel key by tuning the channel on which the favorite program is broadcast.

The present invention is not limited to the above-described embodiments and can be carried out in various modifications within the scope of the technical idea of the present invention.

According to the present invention configured as described above, when a key signal is inputted, whether there is a channel broadcasting the current preferred program over the entire channel, and if there is a channel broadcasting the current preferred program, the channel is changed to the corresponding channel, and only by simple key operation You can watch your favorite shows.

Claims

Determining whether a key signal is continuously input;

If the key signal is continuously input, checking whether a channel for broadcasting a currently-preferred preset program exists; And

And tuning a channel for broadcasting the favorite program if there is a channel for broadcasting the favorite program.

The method of claim 1, wherein if there is no channel for broadcasting the preferred program, the preferred channel corresponding to the channel number after the channel number of the channel currently being watched is tuned.

The method as claimed in claim 1, wherein if the key signal is not continuously input, the preferred channel corresponding to the channel number after the channel number of the channel being watched is tuned.