KR20020014875A - Digital broadcasting receiver built-in MP3 player function - Google Patents

Abstract

PURPOSE: A digital broadcasting receiver is provided to enable a user to receive and listen to an MP3(MPEG Audio Layer-3) file by embedding the function of an MP3 player in a digital broadcasting receiver. CONSTITUTION: A digital broadcasting receiver comprises a tuner(11), an IF(Intermediate Frequency)(12) converting the tuned digital broadcasting signals to IF signals, a channel decoder(13) decoding the IF signals, a TS demultiplexer(DEMUX)(14) separating video, audio and other data from the demodulated signals, an A/V(Audio and Video) signal processing units(15) respectively restoring video and audio data, an MP3 sampling unit(23) sampling MP3 data from the data signals, a data storage(24) storing the sampled MP3 data, a control unit(22) playing back the MP3 data by operating an MP3 player program, a GUI(Graphic User Interface)(21) performing interface between a user and the control unit, and a display control unit(25) outputting the played back MP3 audio and digital broadcasting signals restored by the A/V signal processing unit for the user. Therefore, a user listens to and watch the MP3 file played back without a separate player.

Description

Digital broadcasting receiver built-in MP3 player function

The present invention relates to a digital broadcast receiver, and more particularly, to a digital broadcast receiver incorporating a software MP3 player for playing an MP3 audio file to receive and listen to MP3 data to be provided as content of a data broadcast service. .

As high-definition digital broadcasting has been started in accordance with the recent digital trend, digital television (DTV) capable of receiving and viewing digital broadcasting has emerged. In addition, video and audio broadcasts, independent audio (radio) broadcasts, and data broadcasts are performed in relation to digital broadcast services. Data broadcasting refers to a service that transmits data on a broadcast wave for an interactive service. The data broadcast includes data or application broadcasts related to broadcast audio / video signals, data transmission broadcasts in a game or web format, and applications delivered using broadcast waves. And various contents including interactive service using return channel. In addition, due to the popularization of MP3 audio, MP3 audio file transfer service is also under consideration.

However, even if the MP3 data broadcasting service is provided as described above, there is a burden of purchasing a PC or a separate MP3 player device in order to listen to the MP3 music.

Accordingly, an object of the present invention is to provide a digital broadcast receiver incorporating a software MP3 player function to receive and listen to an MP3 audio file transfer service expected as a content of a data broadcast service.

1 is a block diagram showing a digital broadcast receiver with a built-in MP3 player function according to the present invention.

<Description of the symbols for the main parts of the drawings>

11: Tuner 12: IF section

13 Channel Decoder 14 TS Demultiplexer

15: A / V signal processing unit 21: user interface (GUI)

22: control unit 23: MP3 extraction unit

24: data storage unit 25: display control unit

In order to achieve the above object, a digital broadcast receiver having a built-in MP3 player function according to the present invention includes a means for downloading an MP3 audio file included in a data broadcast service channel to be transmitted, and the downloaded MP3 in a digital broadcast receiver. And means for outputting the audio file to be played and listened to.

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

1 is a block diagram of a digital broadcast receiver having a built-in MP3 player function according to the present invention. The digital broadcast receiver shown in FIG. 1 includes all the configurations of a general digital broadcast receiver. That is, a tuner 11 for tuning the received digital broadcast signal, an IF unit 12 for converting the tuned digital broadcast signal into an intermediate frequency (IF) signal, and a state before the modulation is performed by channel decoding the IF signal. And a channel decoder 13 for demodulating. In addition, a TS demultiplexer (DEMUX) 14 for separating video, audio, and other data from the demodulated signal, and an A / V signal processing unit 15 for restoring each of the separated video and audio data. Meanwhile, according to the present invention for receiving and listening to MP3 data broadcast, the digital broadcast receiver of FIG. 1 includes an MP3 extractor 23 for extracting only MP3 data from a data signal separated by the TS demultiplexer 14, and the extracted MP3 data. It further includes a data storage unit 24 for storing. In addition, a control unit 22 having a software MP3 player program embedded therein and operating the same to play MP3 data, a graphic user interface (GUI) 21 for performing an interface between the user and the control unit 22, and reproduced And a display control unit 25 for outputting the digital broadcasting restored by the MP3 audio and A / V signal processing unit 15 so that a user can view it. The operation of listening to MP3 data broadcast reception in the digital broadcast receiver of FIG. 1 having such a configuration will be described in detail.

First, a case of receiving and watching a general digital broadcast signal will be described. The tuner 11 tunes a digital broadcast signal of a desired channel from a signal flowing through an antenna and outputs the digital broadcast signal to the IF unit 12. The IF unit 12 converts the tuned digital broadcast signal into an IF signal and outputs it to the channel decoder 13. The channel decoder 13 performs channel decoding on the IF-converted broadcast signal and demodulates it to a state before being modulated. In general, since a digital broadcast signal is modulated and transmitted from a residual side band (VSB) from a broadcasting station, the channel decoder 13 demodulates the VSB modulation. The TS demultiplexer 14 separates video, audio, and other data multiplexed on the demodulated broadcast signal. The A / V signal processing unit 15 processes and restores the video data and the audio data separated by the TS demultiplexer 14 according to the processing standard. The display control unit 25 converts the restored video data into a format in accordance with a display standard and outputs the screen, and outputs the restored audio data to a speaker (not shown) so that the digital broadcasting signal can be viewed.

On the other hand, when the user selects the MP3 data broadcast reception, the tuner 11 tunes the data broadcast service channel in the signal flowing through the antenna. The IF unit 12 converts the tuned data broadcast signal into an IF signal and outputs it to the channel decoder 13. The channel decoder 13 performs channel decoding on the IF-converted data broadcast signal and demodulates it to the state before modulation. The demodulated data broadcast signal is multiplexed to radio and television broadcasts, so that the TS demultiplexer 14 separates only the data broadcast signal and outputs it to the MP3 extraction unit 23. The MP3 extractor 23 extracts and downloads only the MP3 data from the data broadcast signal separated by the TS demultiplexer 14. At this time, the user decides whether to immediately output the MP3 data downloaded through the GUI 21 or to store the MP3 data later. The controller 22 operates according to the user's decision through the GUI 21, and when the user determines the output immediately, starts the embedded software MP3 player to play the MP3 data extracted by the MP3 extraction unit 23 and downloaded. . Here, the control unit 22 is a built-in software MP3 player. On the other hand, when the user decides to store the MP3 data extracted by the MP3 extractor 23 under the control of the controller 22 and stored in the data storage 24. The controller 22 reads and plays back the MP3 data stored in the data storage unit 24 at the request of the user. The reproduced MP3 audio is supplied to the display control unit 25 together with the graphics generated by the GUI 21 and output for viewing by the user.

In this embodiment, the configuration related to the MP3 copyright or the interactive service such as audio on demand (AOD) is not considered, but the configuration considering this is obvious to those skilled in the art.

As described above, the digital broadcast receiver incorporating the MP3 player function of the present invention receives and downloads the MP3 audio file transfer expected as the content of the data broadcasting service, and downloads the downloaded MP3 data by embedding the software MP3 player. By playing and listening, the service can cope with service use without using a PC or a separate player device.

Claims (5)

In a digital broadcast receiver, Means for downloading an MP3 audio file contained in the transmitted data broadcast service channel; And And means for outputting the downloaded MP3 audio file so that it can be listened to. The method of claim 1, wherein the download means A tuner for tuning the received data broadcast signal; A TS demultiplexer for separating the data signal from the tuned data broadcast signal; An MP3 extractor for extracting only MP3 data from the separated data signal; And And a data storage unit for storing the extracted MP3 data. The method of claim 2, wherein the regenerative output means A control unit for embedding a software MP3 player and controlling MP3 data extracted according to a user's decision to be stored in the data storage unit or by operating a software MP3 player to play MP3 data; And And a display control unit for outputting the reproduced MP3 audio to a user. 4. The digital broadcast receiver as claimed in claim 3, further comprising a user interface (GUI) for performing an interface between the controller and the user. The method of claim 4, wherein the GUI generates a graphic corresponding to the reproduced MP3 audio, The display control unit is a digital broadcast receiver, characterized in that for outputting the generated graphics so that the user can see.