KR100262647B1 - Method for searching preference channel of the digital broadcasting receiver - Google Patents

Abstract

PURPOSE: A method for searching a preference channel of a digital broadcasting receiver is provided to display a video on a screen by enabling a viewer to move a cursor to a window area of a relevant channel and to search and click the channel. CONSTITUTION: It is judged whether a preference channel collection is selected(S11). It is proceeded to a moving picture mode(S12). The number of a present channel is inputted(S21). The position of a window is stored(S22). It is judged whether a preference channel key is inputted(S31). A division of the position, area information and the preference channel collection is stored in a database(S32). The position of the window is moved(S33). A video selected is outputted(S34). It is judged whether it is escaped from the moving picture mode(S35). The number of the channel is changed(S41). It is checked whether the number of the present channel is corresponded to the number of the channel changed(S42).

Description

Preferred channel search method of digital broadcasting receiver

The present invention relates to a method for searching for a preferred channel of a digital broadcasting receiver for receiving information broadcasted with guide information of a video in electronic program guide information.

In general, digital broadcasting in a satellite broadcasting system broadcasts electric program guide information every predetermined time (5 minutes to 50 minutes) while transmitting a program of the present broadcasting.

Electronic program guide information is received from the digital broadcasting receiver and stored in a memory means, and the stored guide information is displayed as necessary to know program information to be broadcast.

Hereinafter, a digital broadcast receiver according to the prior art will be described with reference to the accompanying drawings.

1 is a block diagram showing a digital broadcasting receiver according to the prior art, FIG. 2 is a block diagram showing a preferred channel of the digital broadcasting receiver according to the prior art, and FIG. 3 is a flowchart showing a method for selecting a preferred channel according to the prior art. to be.

As shown in FIG. 1, a digital broadcasting receiver according to the related art includes a receiver 1 for receiving a remote controller signal of a user, a host processor 2 for outputting various control signals corresponding to the remote controller signal, and the host. A channel decoding processing unit which receives broadcast signals from satellites, cable networks and terrestrial waves according to the control signals output from the processor 2, performs demodulation and error correction (FEC), and outputs them in the form of a digital bit stream. 3) and a transport demux 4 for outputting only a corresponding signal by a control signal for a channel selected by a user among the bitstream signals output from the channel decoding processor 3, and the transport demux 4 Descrambler 5 for descrambling and outputting the descrambled signal to the transport demux 4 again when the signal output from the scrambled signal is scrambled, and the transport demux 4 A video decoder 6 for restoring only an image of a signal selected and output from the video output unit 6 and outputting a video signal, and an audio decoder 7 for restoring only audio among signals selected and output from the transport demux 4 and outputting an audio signal 7. ), A monitor 8 for displaying the video signal output from the video decoder 6, a speaker 9 for reproducing the audio signal output from the audio decoder 7, and a pay broadcast. A smart card 10 for storing a unique number (ID) assigned to the case and outputting the ID number to the host processor 2 and outputting the number of pay-broadcasting views, and the electronics from the transport demux 4 and the host processor 2. And a memory unit 11 for receiving and storing electric program guides and a modem 12 for transmitting the number of pay-TV viewings from the smart card 10 to a broadcasting station.

The host processor 2 generates a control signal according to whether or not to pay the broadcast, thereby outputting the selected signal to the transport demux 4 to the descrambler (5). The host processor 2 also outputs electronic program guide information from the memory unit 11 to the transport demux 4.

The operation according to the prior art configured as described above, first, the broadcast signal from the satellite, cable network, terrestrial wave is output in the form of a digital bit stream from the channel decoding processing unit 3 by the control signal of the host processor (2), The transport demux 4 outputs only the signal selected by the user.

Accordingly, the selected signal is restored to the audio and video signals by the video decoder 6 and the audio decoder 7 and displayed on the monitor 8 and the speaker 9.

At this time, if the broadcast signal is a pay broadcast, the host processor 2 receives the unique number ID of the smart card 10 so that the transport demux 4 is descrambled through the descrambler 5.

The signal processed in this way is displayed in the same manner as described above and watch the pay-broadcast the number of times stored in the smart card (10). After a certain number of times are stored in the smart card 10, the host processor 2 transmits the number through a modem, and the broadcasting station performs charge calculation.

On the other hand, when the user receives the remote control signal from the receiver 1 to find the order of the program and the guide information of the program from now on, the host processor (2) guides the electronic program from the transport demux (4) (Electric Program Guide) information is extracted and stored in the memory unit 11.

The electric program guide information stored in the memory unit 11 is generally configured to enable channel search, reservation viewing, channel change, program information search, and the like.

As described above, when the user inputs a remote control signal in order to know the electric program guide stored in the memory unit 11, the host processor 2 may transmit the electronic program guide information stored in the memory unit 11. Electric Program Guide) is read and displayed for the user to view through the transport demux 4.

That is, the main screen of the program guide information is displayed for each program event, and when the user selects the guide information of the program that he / she wants to see among the program events, detailed information such as airing time, channel, type of program, rating, broadcast language, and plot Is displayed.

In addition, referring to Figure 2, each of the favorite channel collection 1, 2, 3 in the all-channel menu, the viewer selects a block of the favorite channel collection to display the channels to view in the block specified by the viewer can be input to each collection have.

In the all-channel menu, all channels can be viewed without a limited channel set in the preferred channel.

As shown in FIG. 3, the preferred channel collection to be input is selected (S1), and it is determined whether a preferred channel is added in addition to the selected channel (S2).

If the favorite channel is added, the favorite channel collection is added to the database (S3).

In this way, once the preferred channel collection to be input is selected, the channel number and broadcasting station name displayed on the menu are displayed, and when a selection button is pressed at the position that the user wants to see, a check mark is displayed on the menu as an OSD.

In order to make the channel switching only in the collection set as the preferred channel by using the above information, the preferred channel collection is added to the structure in which the channel number, each PID, and the broadcasting station name are set. Specify a group.

Data input to the designated vowel group may be inputted first to the structure of the channel of the designated favorite channel vowel when the designated channel is selected by the OSD in FIG. 2.

In order to perform channel switching only on the preference channel set by the viewer at the time of channel switching, after selecting the preferred channel collection to be viewed in FIG. 2 and exiting the menu, the selected favorite channel collection is stored.

When the viewer changes the channel in the video mode, the channel is changed only in the selected favorite channel collection by transmitting the audio, video, and PCR PID of the structure having the selected favorite channel collection to the transport demux while changing the channel in the order of the channel number. do.

If you want to change the channel by selecting another favorite channel collection when changing the video channel, select another favorite channel collection from the favorite channel collection and change the channel.

In order to select a channel required by a viewer from a collection of favorite channels input by a viewer, the digital broadcasting receiver according to the related art selects and sets a corresponding collection of favorite channels, and then changes a channel in a currently broadcasted video mode to view a channel to be viewed. There is an inconvenience to choose.

The present invention has been made to solve the above problems, by designating a window in the corresponding favorite channel set, each window is searched for a predetermined channel that is predetermined in advance, showing a still image, the viewer moves the cursor into the window area of the channel The user can navigate the channel of the video by clicking it, and by clicking on it, the user can minimize the inconvenience of the user by displaying the video on the main screen.

1 is a block diagram showing a digital broadcasting receiver according to the prior art.

2 is a block diagram showing a preferred channel of the digital broadcasting receiver according to the prior art

3 is a flowchart illustrating a method for selecting a preferred channel according to the related art.

4 is a diagram illustrating a preferred channel screen configuration according to the present invention.

5 is a flowchart illustrating a method for searching for a preferred channel according to the present invention.

6 is a flowchart illustrating a method for searching and changing a channel in a preferred channel menu according to the present invention.

The present invention relates to a method of searching for a preferred channel of a digital broadcasting receiver. When a preferred channel is selected by user selection, the user inputs a preferred channel input by storing selection information on a channel preferred by the user from among all searched channels. And a preference channel search / change step of displaying a channel set when the user channel is changed using the inputted preference channel information as a window, and switching the selection window by activating a region according to the movement of the user cursor. It features.

Hereinafter, with reference to the accompanying drawings as follows.

4 is a view illustrating a preferred channel screen configuration according to the present invention, FIG. 5 is a flowchart illustrating a method for searching for a preferred channel according to the present invention, and FIG. 6 is a method for searching and changing a channel in a preferred channel menu according to the present invention. Is a flow chart.

As shown in FIG. 4, nine still images (windows) corresponding to a designated position when the preference channel is set for the preference channels 1,2 and 3 are configured.

In order to configure the favorite channel list in the form of a window by inputting the favorite channel list, the corresponding channel collection group is selected from the favorite channel menu and then exits to the video mode.

Referring to FIG. 5, a method for searching for a favorite channel is described. A first step (S10) of setting and confirming a favorite channel, a second step (S20) of searching for a channel after setting the favorite channel, and after searching for the channel A third step (S30) of selecting a favorite channel and a fourth step (S40) of changing the selected preferred channel.

The first step (S10) determines whether the preferred channel collection is selected in the preferred channel menu (S11), and if the preferred channel collection is selected (S12) exits the video mode.

The second step (S20) inputs (N) the current channel number (S21), and stores the position (P) of the window after inputting the channel number (S22).

In the third step, it is determined whether a preferred channel key is input (S31). If the preferred channel key is input according to the determination result of the preferred channel key input, the window position, the area information, and the preference channel collection classification are stored in the database (S32).

After the storage, the window position is moved one step (S33), and the selected image is output (S34).

After outputting the selected image, it is determined whether to exit the video mode (S35).

The fourth step is to change the channel number (S41). After changing the channel number, it is checked whether the current channel number and the changed channel number match (S42).

As such, after determining the position of the initial window, it is possible to determine whether to store the currently watching video channel in the selected favorite channel collection by using the favorite channel selection key installed in the remote controller.

If a favorite channel key is selected in a channel currently being viewed, the window position information is set in a structure corresponding to the channel number currently being broadcast, and the window area information is stored.

At this time, the configuration of the stored information is each channel number (Program Number) analyzed using the PAT, PMT, SDT received from the satellite, various PID, broadcasting station name and preference channel collection area, window area information corresponding to the preferred channel (area Start, end point) and window location information are defined as a structure to make a database.

After the above process, the information is stored to move the position of the window to the next window, and then a window corresponding to the position and area information of the stored window is configured in the preferred channel menu, and the corresponding PID information is set as a transport demux. Display in the next window area.

In this case, the display of the selected image displays the image selected in the OSD area as a window, and the window has a different OSD layer for each window.

Therefore, even when searching for a favorite channel, as the cursor moves, the OSD layer where the cursor position is not specified is stored and displayed, and the OSD layer where the cursor position is specified enables output of the selected video on the currently designated channel. .

In addition, to end the favorite channel menu, the channel is changed, and when the set channel number is set back to the set channel number after selecting the set of favorite channels, that is, searching for all currently input channels ends. Otherwise, the channel can be changed to add an input to the favorite channel set.

Therefore, in order to search for the desired channel by changing the channel in the favorite channel set by the viewer, select the favorite channel collection to be viewed in the favorite channel menu and read the position information, area information, and PID of the window specified in the corresponding favorite channel collection. Configure the screen.

After configuring the screen as described above, the channel search and change method in the preferred channel menu is shown in FIG.

Referring to FIG. 6, the preferred channel menu is selected from the main menu (S61), the favorite channel menu is selected, and the channel is searched using the window and PID stored in the previously set preferred channel (S62).

After the channel search, it is determined whether the location of the cursor is a window area (S63). If the location of the cursor is a window area, the location area of the current cursor is determined (S64).

After determining the location area of the current cursor, a PID is read from a database (S65), and the selected image is displayed using the PID information (S66).

After the selected image is displayed, it is determined whether the window area is moved (S67), and if the window area is moved, the feedback is made to re-determine the location area of the current cursor.

If the window area does not move, check whether the viewer clicks the window to be watched (S68). If the window is clicked, the viewer exits the favorite channel menu and sets the demux to the PID selected by the viewer to display the full-screen video. S69).

In this way, each window area is searched for channels to select a currently broadcast screen for each window and set as a still picture.

When the viewer moves the cursor to the window that the viewer wants to view, the area is determined by comparing whether the current cursor position is included in the channel area of the set favorite channel collection by using the selected favorite channel collection information and the information on the favorite channel area of the database. The number and PID information are read and displayed in the selected window.

In addition, when the current cursor position is changed, it is determined whether the cursor position is the current window area, and if the area is changed, the area of the current cursor position is obtained from the database, and the PID of the area is set again and displayed as a video.

If the viewer presses the window that the viewer wants to watch in the window currently displayed on the video, the viewer exits the favorite channel menu and sets the demuxing to the PID selected by the viewer to change to the channel to be watched.

In the preferred channel searching method according to the present invention, the user can minimize the inconvenience of the user because the channel can be easily switched to the corresponding channel by using the window function when watching the required channel by selecting the preferred channel collection in the preferred channel selection function. It works.

Claims (4)

A preference channel input step of inputting a user preference channel by storing selection information on a channel preferred by the user among all searched channels when a preference channel is selected by user selection; And displaying a channel set when the user channel is changed using the inputted preference channel information as a window, and searching / changing the preferred channel to switch the selection window by activating a region according to the movement of the user cursor. Preferred channel search method of digital broadcast receiver. The method of claim 1, The inputting of the preferred channel may include: confirming a preference channel setting according to a user selection; Searching for a channel to set as a favorite channel for all channels when the preference channel is required; The method of searching for a preferred channel of a digital broadcast receiver, characterized in that the step of selecting the search preference channel. The method of claim 1, The searching and changing of the favorite channel may include: searching for a favorite channel using the set preference channel information; Selecting a window area by user selection of a window corresponding to the favorite channel searched channel; Activating switchable channel information for the selected window area; And activating the window region, and then switching the window region using the corresponding channel information. The method of claim 3, And repeating the step of activating the window area at the corresponding position when the window area is moved in accordance with the movement of the user cursor position.