KR100700806B1 - Apparatus and method for setting a broadcasting channel in DMB receiver - Google Patents

Abstract

The present invention relates to an apparatus and method for setting a broadcast channel in a DMB broadcast receiving terminal. For example, the present invention relates to various types of terminals such as a mobile phone or a PDA having a DMB broadcast receiving function. After receiving the fast information data channel (FIDC) of the DMB broadcast, searching for each channel information, grouping the corresponding channel numbers displayed on the terminal for each of the audio channel, the video channel, and the data channel, or displaying the DMMB broadcast. Receives a fast information data channel (FIDC), retrieves each channel information, and if there is a discrepancy with the previously set channel information, the number of the mismatched broadcast channel is integrated or separated into a new channel number on the terminal. By the division display, a broadcast channel is broadcasted by a broadcast service provider or the like to provide an arbitrary broadcast channel among new audio, video and data channels. Even if it is changed, deleted, or integrated, the terminal user can easily recognize the audio channel, the video channel, and the data channel, and thus, it is a very useful invention that can more accurately select and designate a desired broadcast channel.

DMB broadcasting, high speed information data channel, audio channel, video channel, data channel, channel number, broadcast service provider

Description

Apparatus and method for setting a broadcasting channel in DMB receiver             

1 illustrates a configuration of a general DMB broadcast receiving terminal.

2 illustrates a hierarchical diagram for a general DM broadcast channel distribution,

3 illustrates an embodiment in which a channel number is displayed on a general DM broadcast receiving terminal.

4 is a flowchart illustrating an operation of a first embodiment of a broadcast channel setting method in a DMB receiving terminal according to the present invention;

FIG. 5 illustrates a first embodiment in which a channel number is displayed on a DMB receiving terminal to which the present invention is applied;

6 is a flowchart illustrating an operation of a second embodiment of a broadcast channel setting method in a DMB receiving terminal according to the present invention;

FIG. 7 illustrates a second embodiment in which a channel number is displayed on a DMB receiving terminal to which the present invention is applied.

※ Explanation of code for main part of drawing

10: tuner 11: A / D conversion unit

12: decoder 13: outer decoder

14: D / A converter 15: speaker

16: DMB Controller 17: MPEG-2 TS Demux

18: MPEG-4 System Decoder 19: MPEG-4 AVC Decoder

20 MPEG-4 Audio Decoder 21 Display

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for setting a broadcast channel in a DMB broadcast receiving terminal. For example, a mobile phone or a PDA having a digital multimedia broadcasting (DMB) broadcast reception function is provided. In a terminal of the type, the present invention relates to a broadcast channel setting apparatus and method for enabling a user to more easily select and designate an audio channel, a video channel, a data channel, and the like.

FIG. 1 illustrates a configuration of a general DMB broadcast receiving terminal. For example, a tuner 10 and an A / D converter 11 may be used in a terminal such as a mobile phone or a PD with a DMb broadcast receiving function. ), Decoder 12, outer decoder 13, D / A converter 14, speaker 15, DMB controller 16, MPEG-2 TS demux 17, MPEG-4 system decoder 18 ), An MPEG-4 AVC decoder 19, an MPEG-4 audio decoder 20, and a display 21.

On the other hand, the DMB controller 16, in response to the user's request, the operation of the tuner 10, the decoder 12, and the like, to receive any one of the DMB (DMB) broadcast channel, for example In terrestrial DMB (DMB) broadcasting, a broadcasting service is provided using a VHF (12 or 8 channel) band, and one ensemble is allocated to one channel, and one ensemble is allocated. There exist a plurality of broadcasting stations.

The broadcasting station can selectively transmit a desired broadcast signal among audio, video, and data. The data transmission speed of the audio broadcast is 128 Kbps, and the data transmission speed of the video broadcast is 500 Kbps. Since the data rate of the ensemble is 1.5 Mbps, a single ensemble will be able to provide about 10 audio and 2 video services. For example, one video channel and six audio channels may be operated. Can be changed to one video channel.

That is, the broadcast station may transmit a broadcast signal using a broadcast band corresponding to another broadcast station. For example, as shown in FIG. 2, the video service ensemble No. 1 includes an alpha 1 radio (Alpha 1). Radio, Beta Radio, and Alpha 2 Radio may be allocated.

The alpha 1 radio corresponds to audio, an alpha traffic message channel (TMC), and an alpha service information (SI). The beta radio includes a video 1 and a sub video. In addition, the Alpha 2 radio may correspond to Alpha TMC and Alpha SI and may also correspond to Audio or Video 2 by a broadcast service provider.

In addition, the alpha radio may be changed to any one of an audio channel or a video 2 channel according to a broadcast service provider's selection. The audio, alpha SI, video 1, sub video, and video 2 may be changed to a main channel. The alpha TMC is a fast information data channel (FIDC) belonging to an information channel and is transmitted along with multi channel information (MCI) and service information (SI). Can be.

Meanwhile, the DMB broadcast signal received through the tuner 10 as described above is converted into a digital signal by the A / D converter 11 and the decoder 12 (eg, DAB Channel Decoder, Musicam Decoder). Is decoded into a digital broadcast data stream, and the outer decoder 13 performs an error correction (ECC) operation on the decoded broadcast data stream, and performs the MPEG-2 TS demux 17. ) Demuxes the data stream that has undergone the error correction operation, and outputs it separately to MPEG-4 video, audio, and data information.

The MPEG-4 system decoder 18 decodes the separated output data information, and the MPEG-4 AVC (Advanced Video Coding) decoder 19 decodes the separated output video data. In the MPEG-4 audio decoder 20, the separated audio data is decoded. The audio and video data are output timing controlled by the data information, and the data information is the video. The screen may be displayed on the display 21 together with the data.

Meanwhile, as shown in FIG. 3, the display 21 displays a plurality of channel numbers (for example, 1 to 10) for selecting and designating an arbitrary broadcast channel. By selecting and specifying, an audio channel or a video channel can be selected and specified.

However, as shown in FIG. 3, as described above with reference to FIG. 2, in the state where 'channel number 1' is set as a video channel and 'channel numbers 2 through 10' are set as audio channels in the terminal, as described above with reference to FIG. 2. If the video channel corresponding to channel number 1 is changed to an audio channel or the video channel is deleted or integrated with another channel according to a broadcast service provider's selection, the terminal user cannot know the fact. In order to receive the video channel, a problem arises in that channel number 1 is incorrectly selected.

Accordingly, the present invention has been created to solve the above problems, for example, in various types of terminals such as a mobile phone or PDA with a DMB broadcast receiving function, a DMB broadcast, and the like. After receiving the fast information data channel (FIDC) of the channel, and searching for each channel information, the channel number displayed on the terminal is grouped and displayed according to the audio channel, the video channel, and the data channel. An object of the present invention is to provide an apparatus and method for setting a broadcast channel in a DMb broadcast receiving terminal for accurately selecting and designating the same.

In addition, the present invention, after receiving the high-speed information data channel (FIDC) of the DMB broadcast, and after searching each channel information, if there is a mismatch with the previously set channel information, the number of the mismatched broadcast channel on the terminal, It is an object of the present invention to provide an apparatus and method for setting a broadcast channel in a DM broadcast receiver terminal for accurately selecting and designating a desired broadcast channel by integrating or dividing and displaying a new channel number.

Broadcast channel setting method according to the present invention for achieving the above object, the step of allocating a broadcast channel for each category; Receiving broadcast information; And identifying a category of a broadcast signal to be transmitted based on the broadcast information, and setting the channel to a corresponding channel.

In addition, the broadcast channel setting method according to the invention, the step of receiving broadcast information; Storing channel and category information included in the received broadcast information; And resetting the channel number when the category information of the existing channel and the received category information do not match.

In addition, the broadcast channel setting apparatus according to the present invention, the receiver for receiving broadcast information; A memory for storing broadcast channels allocated for each category; and a controller for checking a category of a broadcast signal transmitted based on the broadcast information and controlling to set the corresponding channel to a corresponding channel.

In addition, the broadcast channel setting apparatus according to the present invention, the receiver for receiving broadcast information; A memory for storing channel and category information included in the received broadcast information; And a control unit which controls to reset the channel number when the category information of the existing channel and the received category information do not match.

Hereinafter, a preferred embodiment of an apparatus and method for setting a broadcast channel in a DMb broadcast receiving terminal according to the present invention will be described in detail with reference to the accompanying drawings.

First, the present invention can be applied to various types of terminals such as a mobile phone or a PDA equipped with a DMB broadcasting reception function, for example, of a terminal configured as described above with reference to FIG. 1. In the DMB control 16, when performing a channel update operation according to a user's request, the DMB control 16 receives the fast information data channel (FIDC) of the DMB broadcast and searches for each channel information.

In the first embodiment of the present invention, when audio data is provided through a corresponding broadcast channel by searching for and checking a type of data provided through each broadcast channel, a channel pre-grouped as an audio channel on the terminal. The channel number is set to any one of the numbers (eg CH 1 to 10).

In addition, when video data is provided through a corresponding broadcast channel, the terminal sets the channel number to any one of channel numbers (eg, CH 11 to 15) previously grouped as a video channel, and sets the corresponding broadcast channel. When the information data is provided through the terminal, the terminal user can easily recognize the terminal number by setting one channel number among the channel numbers (eg, CH 16 to 20) previously grouped as data channels on the terminal. It will be described in detail as follows.

4 is a flowchart illustrating a first embodiment of a method for setting a broadcast channel in a DMB receiving terminal according to the present invention. In the DMB controller 16, the tuner 10, the decoder 12, and the like are illustrated. In operation S10, an arbitrary broadcast channel is received (S10), for example, when a user inputs a preset key to update preset broadcast channels on a terminal, the DMB The controller 16 enters the operation mode into the channel update mode (S11).

In addition, the tuner, the decoder, and the like are operated to receive a fast information data channel (FIDC) of a DM broadcast (S12), for example, in a terrestrial DMB (DMB) broadcast, a VHF (12 or 8 channel) band. Since the broadcast service is provided by using the SRS, a fast information data channel (FIDC) serviced through 12 or 8 channels of the VHF band is received, and the respective channel information is searched for (S13).

On the other hand, in the DMB controller 16, the audio channel number, the video channel number, and the data channel numbers are pre-grouped and separately allocated on the terminal. For example, as shown in FIG. The first through tenth channel numbers (CH 1 through 10) are assigned audio channel numbers, and the eleventh through fifteenth channel numbers (CH 11 through 15) are video channels, and the sixteenth through twentieth channel numbers (CH 16). 20 may be separately allocated to a data channel or a reserved channel.

Then, the DMB controller 16 searches for each channel information, and if the corresponding broadcast channel is an audio channel (S14), the first to ten channel numbers (CH 1 to CH 1 to pre-grouped as audio channels) on the terminal. 10) set to any one channel number (S15), and if the corresponding broadcast channel is a video channel (S16), the 11th to 15th channel numbers (CH 11 to 15) pre-grouped as video channels on the terminal. ) Is set to any one channel number (S17).

In addition, when the corresponding broadcast channel is a data channel (S18), the channel number is set to any one of the sixteenth to twenty-fourth channel numbers (CH 16 to 20) previously grouped as a data channel on the terminal. In operation S19, when the channel setting operation is completed as described above (S20), a corresponding operation requested by the user is performed (S21).

Accordingly, even if a broadcast channel is changed, deleted, or integrated into any one of new audio, video, and data channels by a broadcast service provider or the like, the terminal user groups the audio, video, and data channels on the terminal. The selected channel number can be easily selected and specified.

On the other hand, in the second embodiment of the present invention, after receiving the fast information data channel (FIDC) of the DMB, and searching each channel information, if there is a mismatch with the previously set channel information, the number of the mismatched broadcast channel To be distinguished or displayed by integrating or separating into a new channel number on the terminal, it will be described in detail as follows.

6 is a flowchart illustrating a second embodiment of a method for setting a broadcast channel in a DMB receiving terminal according to the present invention. In the DMB controller 16, the tuner 10, the decoder 12, and the like are illustrated. In order to control an operation to receive a single broadcast channel (S30), and to update preset broadcast channels on a terminal, when a user inputs a preset key or the like, the operation mode is a channel update mode. Set to enter (S31).

In addition, the tuner, the decoder, and the like are operated to receive a fast information data channel (FIDC) of DM broadcast (S32). As described above, in the terrestrial DMB broadcast, VHF (12 or 8 channels) is received. Since a broadcast service is provided using a band, a fast information data channel (FIDC) serviced through 12 or 8 channels of the VHF band is received, and the respective channel information is searched for (S33).

On the other hand, the DMB controller 16 compares the channel information for each preset channel number with the channel information searched through the fast information data channel (FIDC) on the terminal (S34). It is checked whether the channel information about the numbers matches the found channel information (S35).

For example, as shown in FIG. 7, on the terminal, a first channel number CH 1 is a video channel, and second to ten channel numbers CH 2 to 10 are set as audio channels. In the state in which it is determined that the broadcasting channels corresponding to the second to fourth channel numbers CH 2 to 4 are integrated and changed from an audio channel to a video channel, in the DMB controller 16, the first to fourth channels are used. The channel number is collectively set to one first video channel number, and is displayed separately from the remaining audio channel number (S36).

On the other hand, if the channel information is matched as a result of the check, the preset channel numbers are maintained as is (S37), and since the user performs a corresponding operation requested (S38), any broadcast channel is changed or deleted. Even if integrated, the terminal user can easily recognize the audio channel, the video channel, and the data channel on the terminal, thereby more accurately selecting and designating a desired broadcast channel.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

The present invention relates to a broadcast channel setting apparatus and method in a DM broadcast receiver according to the present invention, which is constructed and configured as described above, and for example, various types of mobile phones or PDAs having a DMB broadcast reception function. In the terminal, after receiving the fast information data channel (FIDC) of the DMB broadcast, and searching for each channel information, the channel numbers displayed on the terminal are grouped and displayed for each audio channel, video channel, or data channel, or Receives a fast information data channel (FIDC) of the DMMB, retrieves each channel information, and if there is a mismatch with the previously set channel information, the number of the mismatched broadcast channel is integrated into a new channel number on the terminal or By separating and displaying them, broadcast channels such as new audio, video, Even if the channel is changed, deleted, or integrated into any of the broadcast channels, the terminal user can easily recognize the audio channel, the video channel, and the data channel so that the user can more accurately select the desired broadcast channel. It is a useful invention.

Claims (11)

Receiving a fast information data channel (FIDC) of a DMB (DMB) broadcast and retrieving each broadcast channel information; Determining an audio channel, a video channel, and a data channel with reference to the broadcast channel information; And And distinguishing and setting the determined audio channel, video channel, and data channel into an audio channel number, a video channel number, and a data channel number previously grouped on the terminal, and then differently displaying the identified audio channels, video channels, and data channels. A broadcast channel setting method in a DM broadcast receiving terminal. delete The method of claim 1, The audio channel, 1 to 9 channels, video channels, 10 to 15 channels, data channels, 16 to 20 channels in advance, characterized in that the broadcasting channel setting method in the DM broadcast receiving terminal. Receiving a fast information data channel (FIDC) of a DMB (DMB) broadcast and retrieving each broadcast channel information; Comparing the broadcast channel information with channel information for each broadcast channel number preset on the terminal; And As a result of the comparison, if there is a mismatched channel information, after updating the broadcast channel number of the corresponding terminal, and including the step of distinguishing and displaying the grouped audio channel number, video channel number, data channel number differently A broadcast channel setting method in a DM broadcast receiver, characterized in that made. delete delete delete delete delete The method of claim 1, In the first step, in the case of terrestrial DMB broadcasting, the DMB broadcasting receiver receives a fast information data channel (FIDC) serviced through 12 or 8 channels of the VHF band and searches for each broadcasting channel information. How to set broadcast channel. The method of claim 4, wherein In the first step, in the case of terrestrial DMB broadcasting, the DMB broadcasting receiver receives a fast information data channel (FIDC) serviced through 12 or 8 channels of the VHF band and searches for each broadcasting channel information. How to set broadcast channel.

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