KR20070063921A - Method for participating a broadcasting program in dmb terminal - Google Patents

Abstract

A method for participating in a broadcasting program in a DMB(Digital Multimedia Broadcasting) terminal device is provided to allow a user to actively participate in the broadcasting program by obtaining call number related to the broadcasting program and transmitting a text message at the obtained call number. Audio broadcasting of a Terrestrial-DMB is received and reproduced(S200). X-PAD(eXtended Program Association Data) included in an audio frame of the terrestrial-DMB is checked(S210). A CI(Contents Identification) of the checked X-PAD field is checked(S220). It is checked whether the checked CI is a DLS(Dynamic Label Segment)(S230). It is inspected whether data on the checked X-PAD have the type of telephone number(S240). A telephone number about the reproduced broadcasting is obtained. A text message is transmitted at the obtained telephone number.

Description

Method for participating a broadcasting program in DMB terminal

1 is a schematic diagram of a terrestrial DMB system;

2 is a flowchart illustrating a broadcast program participation method of a DMB terminal according to the present invention;

3 is a structural diagram of an X-PAD included in an audio frame.

4 is a service model structure diagram of T-DMB.

The present invention relates to a terminal capable of receiving digital multimedia broadcasting (DMB), and more particularly, to a broadcast program participation technology.

In the conventional audio broadcasting, the method of examining the propensity or opinions of the listeners was a method of directly calling the listeners, conducting an offline survey, or receiving the opinions on the Internet. This was a method to spend time and resources using a medium separate from the medium receiving the broadcast. In addition to the self-investigation by the broadcasting station, when the listeners voluntarily participated in the program and submitted their opinions, they had to use the method described above. Therefore, according to the conventional method as described above, surveys, applications, opinions, etc. related to broadcast programs are inevitably low.

SUMMARY OF THE INVENTION The present invention is derived from this background, and an object of the present invention is to provide a technical method for participating in a broadcast program while listening to a broadcast through a DMB terminal having a telephone and a DMB reception function.

In accordance with an aspect of the present invention, there is provided a method for participating in a broadcast program of a DMB terminal, receiving a T-DMB audio broadcast, obtaining a phone number associated with the broadcast during playback, and listening to a listener according to the content of the broadcast program. And sending a message to the telephone number obtained with the text written by the terminal user for participation in the opinion.

According to this aspect of the present invention, the method of participating in a broadcast program of a DMB terminal according to the present invention enables a terminal user to listen to an audio broadcast by acquiring a phone number associated with an audio broadcast program and transmitting a message to the phone number. Of course, it also enables users to actively participate in broadcast programs, such as listening to audio broadcasts while listening to broadcasts, surveying listeners, offering products and providing opinions during broadcasts.

The foregoing and further aspects of the present invention will become more apparent through the preferred embodiments described with reference to the accompanying drawings. Hereinafter, the present invention will be described in detail to enable those skilled in the art to easily understand and reproduce the present invention.

1 is a schematic diagram of a terrestrial DMB system. The terrestrial DMB center 10 transmits terrestrial DMB (T-DMB) by applying a CDM modulation scheme using S-band. As is known, T-DMB provides audio services, video services, and data services. Here, the audio service of the T-DMB refers to the audio service of FM or AM radio, unlike the audio signal of the video service, and the present invention relates to the audio service.

The terrestrial DMB center 10 according to the present invention includes a telephone number data related to participation in a broadcast program when the broadcast program is required to participate in a broadcast program such as a questionnaire or receiving an opinion when the broadcast program is transmitted. This is provided by X-PAD (eXtended Program Association Data) of T-DMB's audio stream service and uses DLS (Dynamic Label Segment) made to provide additional services such as song title, singer information and traffic information. It can be achieved by carrying along with the purchase connection phone number of the advertisement product currently being broadcast on the PAD. At this time, it is preferable that the telephone number on the X-PAD has a predefined format so that the DMB terminal 30 can recognize the broadcasting program participating phone number.

The DMB terminal 30 receives and processes the T-DMB audio broadcast transmitted from the terrestrial DMB center 10 through the repeater 20. The processing method converts the received digital audio broadcast signal into a baseband orthogonal signal as known, performs demodulation on the OFDM modulation from the converted orthogonal signal, restores the frequency interleaving signal for error correction, and DQPSK encoding. After the decoded signal is decoded, interleaving with respect to time is restored, and the Viterbi coded one is decoded. In addition, the channel decoder decodes the audio information, decodes it according to the MPEG-1 / 2 Layer 2 compression method, generally called MUSICAM, and outputs it through an audio D / A converter and a speaker. Since the configuration itself of the terminal for receiving and processing the audio broadcast of the T-DMB is a well-known matter, a detailed description thereof will be omitted.

The DMB terminal 30 according to the present invention extracts the phone number included in the audio stream of the T-DMB and informs the user of the message so that the text written by the user can be transmitted to the extracted phone number. This will be described with reference to FIG. 2. 2 is a flowchart illustrating a broadcast program participation method of a DMB terminal according to the present invention. As shown, receiving and reproducing an audio broadcast of T-DMB, acquiring a telephone number associated with the audio broadcast, and transmitting a message to the obtained telephone number with the written text.

The DMB terminal 30 receives the T-DMB audio broadcast and reproduces it through the above-described processing (step S200). Then, the X-PAD (eXtended Program Association Data) included in the audio frame is checked (step S210). 3 is a structural diagram of an X-PAD included in an audio frame. In step S210, the DMB terminal 30 checks the X-PAD using the F-PAD shown in FIG. 3 as known when receiving the audio broadcast. The DMB terminal 30 confirms the application type by checking the contents identifier (CI) of the identified X-PAD (step S220). If the application type is 2 or 3, the DMB terminal 30 recognizes that it is a dynamic label segment (DLS) protocol (step S230).

The DLS protocol is a data transmission protocol for providing a song title, singer information, traffic information, etc. by providing the X-PAD of an audio stream service. 4 is a service model structure diagram of T-DMB. From FIG. 4, the location of the DLS protocol included in the audio service can be confirmed. The DLS protocol is included in the audio frame and serviced. The basic structure is shown in FIG. 3. X-PAD uses CI to distinguish transport protocols such as Dynamic Label Segment (DLS), Multimedia Object Transfer (MOT), and Transparent Data Channel (TDC). For reference, CI values are 2, 3 for DLS, 11, 12, 13, and 14 for MOT, and 23 for TDC.

In the case of the DLS protocol, the DMB terminal 30 parses the data contained in the X-PAD and checks whether the data content has a broadcast program participation telephone number format (step S240). Preferably, the telephone number which is used for the connection of the purchase of the product currently being broadcasted to the corresponding X-PAD using the DLS protocol has a predefined format so that the DMB terminal 30 can recognize the broadcasting program as a participating telephone number. . Therefore, the DMB terminal 30 may identify whether the broadcast program participation telephone number format is defined in advance and distinguish whether or not the data contained in the X-PAD is a telephone number.

If the data loaded on the X-PAD is a broadcast program participating phone number, the phone number is stored in a temporary buffer. And preferably, the DMB terminal 30 writes a text and presses a designated key such as a confirmation key or a transmission key to display a phrase on the terminal screen indicating that the program participation contents can be transmitted by SMS (step S250). Accordingly, the terminal user writes text through key input in relation to the content of the audio broadcast program that is currently being listened to. When the text writing is completed, the user instructs to send the SMS text written through the key operation. The DMB terminal 30 confirms that there is a message transmission command from the terminal user (step S260), and processes the written text according to the SMS method to transmit the message (step S270).

As described above, the method of participating in the broadcast program of the DMB terminal according to the present invention enables the terminal user to listen to the audio broadcast as well as broadcast by acquiring a phone number associated with the audio broadcast program and transmitting the message to the phone number. In addition to listening to audio broadcasts, the program also enables participants to actively participate in broadcast programs, such as surveying listeners, offering products, and providing opinions.

On the other hand, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

Claims (3)

a) receiving and reproducing an audio broadcast of T-DMB; b) obtaining a telephone number associated with the audio broadcast; c) sending the written text to the obtained telephone number; Broadcast program participation method of the DMB terminal, characterized in that it comprises a. The method of claim 1 wherein the method is: Informing that there is a telephone number between steps b) and c); Participation method for a broadcast program of a DMB terminal, further comprising a. The method of claim 1 or 2, wherein step b) comprises: b1) checking eXtended Program Association Data (X-PAD) included in the audio frame of the T-DMB; b2) checking a Contents Identificaton of the identified X-PAD field to determine whether it is a Dynamic Label Segment (DLS); b3) when the DLS is confirmed, checking and acquiring whether the data contained in the X-PAD is in a phone number format.

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