KR20010090979A - Data service method using digital television broadcasting system and data service system and terminal therefor - Google Patents

Abstract

PURPOSE: A data service method using a digital television broadcasting system and the data service system and a terminal are provided to perform various additional data services by using a digital television broadcasting system. CONSTITUTION: A data information supplying unit(103) supplies various information data by preparing contents data to be transmitted using a digital broadcasting system(12). A data fabricator(102) performs a multiplexing of data information from the data information supplying unit(103). A MPEG encoder(122) inputs a video/audio signal and performs a compressing encoding of the video/audio signal in accordance with the MPEG standard. A data broadcasting server(124) performs a multiplexing of contents data of an information center and other contents data. A multiplexer/transmitting unit(126) performs a multiplexing of data from the data broadcasting server(124) and data from the MPEG encoder(122), and adds a carrier wave to the result data and performs a wireless amplification. A wave outputting unit(128) outputs the wireless-amplified signal as an air wave. In addition, a plurality of application programs are stored and a terminal(14) is provided for receiving a data broadcasting of a portable digital television broadcasting.

Description

Data service method using digital television broadcasting system and data service system and terminal therefor}

The present invention relates to a data service method, a data service system and a terminal thereof, and more particularly, to perform various additional services such as a paging service, a mail service, a game service, and a traffic information providing service using a digital television broadcasting system. A data service method, a data service system and a terminal thereof.

Broadcasting may be referred to as a service that provides information in the form of video and audio to an unspecified number of users. Among such broadcasts, digital television broadcasts can transmit / receive various data in addition to video and audio signals unlike analog television broadcasts based on NTSC, PAL, or SECAM standards. In addition, recently, a wider range of broadcasting facilities can be used to evenly broadcast nationwide from one broadcasting center.

However, there are no data service methods, systems, and terminals that can effectively provide additional services to portable terminals using such digital television broadcasting.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a method for performing various additional data services using a digital television broadcasting system.

Another object of the present invention is to provide a data service system in which the data service method is performed.

Another object of the present invention is to provide a terminal capable of receiving additional data service according to the data service method.

1 is a block diagram illustrating a data service system according to an exemplary embodiment of the present invention.

FIG. 2 is a block diagram showing the detailed structure of the terminal shown in FIG.

3A is a flowchart illustrating a data preparation / transmission process in a data service method according to an embodiment of the present invention.

3B is a flowchart illustrating a data receiving / processing process in a data service method according to an exemplary embodiment of the present invention.

4 is a diagram illustrating an example of a structure of a data stream generated by a data service method according to the present invention.

In order to achieve the above object, a data service method according to an aspect of the present invention comprises the steps of: (a) receiving mail data including a unique identifier data and delivery contents data of a person who will receive a mail from a web server; (b) converting the received mail data into a data broadcasting format of a digital television; And (c) broadcasting the converted mail data using a digital television broadcasting system.

In addition, the data service method includes the steps of: (d) receiving a digital television broadcast including mail data; (e) extracting a unique identifier from the mail data; And (f) displaying the delivered contents data on the screen if the unique identifier matches the identifier of the device.

In addition, in order to achieve the above object, the data service method according to another aspect of the present invention (a) generates a destination address, a service code and information data corresponding to the service and converts it into data of a format required for data broadcasting of digital television; Process of doing; And (b) adding air carrier and wireless amplifying the converted data to broadcast the airwave.

In addition, the data service method includes the steps of: (c) receiving an airwave in a data broadcast receiving terminal of a digital television broadcast having an embedded application program, and extracting a broadcast signal of a desired channel from the received airwave; (d) removing a carrier from the extracted broadcast signal; (e) extracting data region information from the signal from which the carrier is removed; (f) extracting a destination address and a service code from the data area information; (g) executing an application program corresponding to the service code if a destination address matches a unique identifier of the receiver; And (h) processing the information data area of the data area information according to the application program.

In addition, to achieve the above object, a data service method according to another aspect of the present invention comprises the steps of (a) preparing content data to be transmitted using a digital broadcasting system; (b) converting the content data into a data broadcasting format of a digital television; (c) broadcasting the converted content data using a digital television broadcasting system; And (d) processing the content data by receiving the data broadcast receiving dedicated terminal of the digital television broadcast in which the application program is embedded.

In addition, to achieve the above object, the data service system according to the present invention comprises an information center having a data information supply unit for supplying various information data, and a data fabricator for multiplexing the data information from the data information supply unit; A digital broadcasting system for broadcasting information from the information center according to a digital broadcasting standard; Extracting data area information from the information broadcast by the digital broadcasting system; extracting a destination address and a service code from the data area information; and if the destination address matches a unique identifier of the receiver, an application program corresponding to the service code; And a terminal for processing the information data area of the data area information according to the application program.

The data information supply unit may further include a web server connected to the Internet for supplying web page data or mail data, a data server storing game service data, and information received from an external wireless call operator or a calibration information center. It is preferred to be selected from among the interpreters serving.

The web server may further include a link table for linking a device identifier composed of a plurality of numbers and a user identifier composed of a plurality of characters, and if a user identifier is input, the device identifier corresponding to the user identifier in the link table. It is desirable to search and use the retrieved device identifier as the destination address.

In addition, the terminal according to the present invention to achieve the above further object is a radio wave receiving means for receiving digital television radio waves; Demodulation means for removing a carrier signal that is a residual sideband signal from a received radio wave; Decoding means for extracting data region information; Memory means for temporarily storing data generated in the course of performing an operation; Control means for extracting a destination address from the data area information and processing the information data area of the data area information if the destination address matches the unique identifier of the receiver; And display means for displaying the processing result.

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

1 shows a data service system according to an embodiment of the present invention. Referring to FIG. 1, a data service system according to an exemplary embodiment of the present invention provides an information center 10 for preparing content data to be transmitted using a digital broadcasting system, and digitally broadcasts content data from the information center 10. And a digital broadcasting system 12 for broadcasting in accordance with a standard, and a terminal 14 for extracting and processing content data from a broadcasting signal. More specifically, the information center 10 uses the digital broadcasting system 12 to prepare content data to be transmitted, thereby providing a data information supply unit 103 for supplying various information data, and data information from the data information supply unit. And a data fabricator 102 for multiplexing the data fabricator 102. The digital broadcasting system 12 includes an MPEG encoder 122 for inputting and encoding video / audio signals according to the MPEG standard, a data broadcasting server 124 for multiplexing content data from the information center and other content data, and data broadcasting. A MUX / transmitter 126 for multiplexing the data from the server 124 and the data from the MPEG encoder 122 and adding and wirelessly amplifying a carrier to the resulting data, and a radio wave output section for outputting the radio amplified signal as airwaves ( 128). In addition, the data service system according to the embodiment of the present invention includes a terminal 14 dedicated to receiving data broadcast of a portable digital television broadcast having a plurality of application programs embedded therein.

2 shows the detailed structure of the terminal 14 shown in FIG. Referring to FIG. 2, the terminal 14 includes an antenna 142 for receiving digital television radio waves, a VSB demodulator 146 for removing a carrier signal which is a residual sideband signal from the received radio waves, and a decoder for extracting data area information ( 148, a ROM 150 for storing a plurality of application programs, a RAM 151 for temporarily storing data generated in a process of performing an operation, and a CPU 152 for executing an application program and performing control operations of the entire terminal. ), An LCD 154, a speaker 156, and an operation unit 158 for displaying data to be displayed among the content data.

3A illustrates a data preparation / transmission process in a data service method according to an embodiment of the present invention, and FIG. 3B illustrates a data reception / processing process in a data service method according to an embodiment of the present invention. Referring to FIG. 3A, in the data preparation / transmission process in the data service method according to an embodiment of the present invention, first, the data information supply unit 103 of the information center 10 corresponds to a destination address, a service code, and a service thereof. Generate additional service data including the information data (step 302). Next, the data fabricator 102 converts the supplementary service data into data of a data format required for data broadcasting of digital television, and multiplexes (step 304) outputs the multiplexed content data.

The data broadcast server 124 in the digital broadcast system 12 multiplexes the content data from the information center and other content data (step 306). The MUX / transmitter 126 multiplexes the data from the data broadcast server 124 and the data from the MPEG encoder 122, adds and radio amplifies the resultant data, and the radio amplified signal is a radio wave output unit 128. Is broadcasted over the air (step 308).

Referring to FIG. 3B, in a data receiving / processing process in a data service method according to an exemplary embodiment of the present invention, first, an antenna is used in a data broadcasting reception dedicated terminal 14 of a digital television broadcast having an application program embedded in a ROM 150. 142 is used to receive the airwaves, and the digital TV tuner 144 extracts the broadcast signal of the desired channel from the received airwaves (step 320). The VSB demodulator 146 removes a carrier from the extracted broadcast signal (step 324), and the decoder 148 extracts data region information from the signal from which the carrier is removed (step 326).

Next, the CPU 152 extracts a destination address and a service code from the data area information (step 328). If the destination address matches the unique identifier of the receiver, the CPU 152 reads and executes the application program corresponding to the service code from the ROM 150 (step 330). In this way, it is possible to process the information data area of the data area information (step 332) in accordance with the application program. That is, the terminal 14 extracts data area information from the information broadcast by the digital broadcasting system, extracts a destination address and a service code from the data area information, and if the destination address matches the unique identifier of the receiver, the service. By executing the application program corresponding to the code, the information data area of the data area information is processed according to the application program. The user can use the operation unit 158 to perform commands or data processing necessary for the operation.

In this embodiment, the data information supply unit 103 includes an interpreter 104, a data server 106, and a web server 108 connected to the Internet to supply web page data or mail data. The interpreter 104 may be understood as a kind of gateway for serving information received from an external wireless call operator or a calibration information center. In addition, the data server 106 stores content data that can be provided in an information center such as game service data. The web server 108 is also connected to the Internet to supply web page data or mail data. In addition, the web server 108 includes a link table for linking a device identifier composed of a plurality of numbers and a user identifier composed of a plurality of characters, and when a user identifier is input, the web server 108 corresponds to the user identifier in the link table. It is desirable to retrieve the device identifier and use the retrieved device identifier as the destination address.

On the other hand, the application program stored in the ROM 150 of the terminal 14 allows the application field to be extended in the data service method using the digital television broadcasting system according to the present invention.

For example, if the application program is a program for a paging / mail service, a customer who purchases a receiving device such as a mobile terminal 14 or a stationary receiver 16 may purchase data according to the present invention. You can get paging / mail service in service method. That is, in the data service method according to the present invention, the user accesses a web site opened for paging / mail service, for example, www.pagingservice.co.kr, and inputs his or her receiver identifier (device identifier) and a desired user identifier. To register. In addition, the web server 108 of the information center 10 has a link table that can be understood as a kind of database linking the device identifiers and user identifiers of all users.

User identifier Device identifier naze xxxxxxxxxxxxx1 of xxxxxxxxxxxxx2 bottle xxxxxxxxxxxxx3

Now, an end user uses this user identifier when he sends or calls someone. That is, a user who connects to the server writes a message in the transmission page as follows.

Recipient naze Sender of <Contents to be sent>

It can also be used by connecting to an existing mail server. In more detail, it is possible to link an existing e-mail account to the web server of the present invention using a mail forwarding technique. That is, when a new message arrives to a person with an abc@yahoo.com email account, yahoo's mail server forwards the message to the web server 108 and the web server 108 recalls the message through a broadcast channel. The message is displayed on the terminal 14 of the person with the e-mail account of abc@yahoo.com by sending the message.

When the data service method according to the above embodiment is applied to a digital television receiver, the service provider accesses the homepage provided by the web server performing the data service method according to the present invention through the Internet, thereby using a digital broadcasting network. Since it is possible to send an e-mail to the receiver, it is possible to apply to the home appliance management service and the viewing fee collection service.

4 illustrates an example of a structure of a data stream generated by the data service method according to the present invention. Referring to FIG. 4, according to the data service method according to the present invention, a destination address 402 and a service code 404 are included in a header area field 410. The header area field 410 and the information data area field 412 are inserted into the data area field 424, and the image data area field 420, the audio data area field 422, and the data area field 424 are multiplexed. The generated data stream is created. For example, when the user desires a mail / paging service, the data broadcasting server 124 preferably sets the service code to a code value corresponding to the mail / paging service.

In addition, for example, when a program for a traffic information service or a radio call service is provided in an application program, a traffic information service or a radio call service using the terminal 14 is possible. For example, in the case of a traffic information service, a GPS receiver mounted on a bus locates the current bus and sends it to a traffic information center (not shown) through a transmitter such as a PCS. The traffic information center collects location information sent from all buses in the city, extracts analysis information such as traffic information flow, and processes the bus location information and transmits it to the information center 10. Data transmission from the traffic information center to the interpreter 104 of the information center 10 may use a network (not shown) such as Ethernet. Thus, the traffic information is received by the interpreter 104 of the information center 10, the traffic information service data provided through the interpreter 104 is multiplexed using the data FAB 102, and then the digital broadcasting system 12 Is broadcast using. In this case, the data broadcasting server 124 preferably sets the service code to a code value corresponding to the traffic information service.

When the reception terminal 14 receives the broadcast information in this way, the service code is detected from the broadcast information, and the application program for the traffic information service stored in the ROM 150 corresponding to the service code is called and executed. When the application program is executed, the information data area is detected, and the traffic information data is stored in the information data area. Therefore, such data, for example, the traffic congestion at each location in the city, the location of the bus currently waiting and the estimated time of arrival By displaying on the LCD 154, the traffic information service can be received from the terminal 14. Similarly, it is possible to perform a radio calling service provided by a radio calling company. This is very similar to the procedure performed in the traffic information service and will not be described herein any further.

Further, for example, when the terminal 14 is provided with an application program for performing a game service among the application programs, the game service using the terminal 14 is possible. That is, the operator stores the game software program in the data server 106 and multiplexes the stored game software program by the data FAB 102. The digital broadcasting system 12 periodically broadcasts the multiplexed data. Now, the terminal 14 downloads the game software program to the RAM 151 by receiving the digital broadcast, and executes the game software program stored in the RAM 151 by the CPU 152. Thus, the operator periodically broadcasts the game software using the data broadcast of the digital broadcasting system, and the user can receive the game service by downloading and executing the game software to the terminal 14 according to the present invention.

The data service system according to the present invention can provide mail / paging services, traffic information services, and game services to users by using digital television broadcast radio waves without paying expensive mobile communication fees.

In the above embodiments, as an example of the additional service provided by the data service method according to the present invention, the mail / paging service, the traffic information service, the wireless paging service, and the game service have been described as examples, but it is possible to apply it to various additional services. Do. In the above embodiments, terrestrial digital television broadcasting has been described as an example, but the same may be applied to satellite digital television broadcasting and digital CATV (Cable TV). In the above embodiments, the application program is stored in the ROM 150 as an embodiment. However, the ROM 150 is implemented as a flash memory whose contents are not erased even when the power is cut off. It can be implemented to save to. Accordingly, the above embodiments may be appropriately modified or modified by those skilled in the art within the scope of the present invention as defined by the appended claims.

As described above, according to the present invention, various additional services such as mail / paging service, traffic information service, and game service can be provided to the user by using digital television broadcast radio waves without paying expensive mobile communication fee.

Claims (10)

(a) receiving, from the communication network, mail data including a unique identifier data of the person who will receive the mail and the contents of the forwarding at the web server; (b) converting the received mail data into a data broadcasting format of a digital television; And and (c) broadcasting the converted mail data using a digital television broadcasting system. The method of claim 1, (d) receiving a digital television broadcast including mail data; (e) extracting a unique identifier from the mail data; And (f) if the unique identifier matches the identifier of the device, displaying the delivered content data on the screen; data service method using a digital television broadcasting system, characterized in that it further comprises. (a) generating a destination address, a service code, and information data corresponding to the service and converting the data into data in a format required for data broadcasting of a digital television; And and (b) adding a carrier wave to the converted data and wirelessly amplifying the airwaves to broadcast the airwaves. The method of claim 3, (c) receiving an airwave in a data broadcast receiving terminal of a digital television broadcast having an embedded application program, and extracting a broadcast signal of a desired channel from the received airwave; (d) removing a carrier from the extracted broadcast signal; (e) extracting data region information from the signal from which the carrier is removed; (f) extracting a destination address and a service code from the data area information; (g) executing an application program corresponding to the service code if a destination address matches a unique identifier of the receiver; And and (h) processing the information data area of the data area information in accordance with the application program. (a) preparing content data to be transmitted using a digital broadcasting system; (b) converting the content data into a data broadcasting format of a digital television; (c) broadcasting the converted content data using a digital television broadcasting system; And and (d) processing the content data by receiving the data broadcast receiving dedicated terminal of the digital television broadcasting having the application program embedded therein. A system for performing a data service using a digital television broadcasting system, An information center having a data information supply section for supplying various information data and a data fabricator for multiplexing data information from the data information supply section; A digital broadcasting system for broadcasting information from the information center according to a digital broadcasting standard; And Extract data area information from the information broadcast by the digital broadcasting system, extract a destination address and a service code from the data area information, and if the destination address matches the unique identifier of the receiver, apply an application program corresponding to the service code. And a terminal for processing the information data area of the data area information in accordance with the application program by executing the data service system. The method of claim 6, wherein the data information supply unit, It is selected from a web server connected to the Internet to supply web page data or mail data, a data server to store game service data, and an interpreter to service information received from an external wireless call operator or a calibration information center. Data service system using a digital television broadcasting system. The method of claim 7, wherein the web server, A link table for linking a device identifier consisting of a plurality of numbers and a user identifier consisting of a plurality of characters, and if a user identifier is input, retrieves a device identifier corresponding to the user identifier from the link table and sends the searched device identifier to a destination. A data service system using a digital television broadcasting system, characterized in that it is used as an address. Radio wave receiving means for receiving digital television radio waves; Demodulation means for removing a carrier signal that is a residual sideband signal from a received radio wave; Decoding means for extracting data region information; Memory means for temporarily storing data generated in the course of performing an operation; Control means for extracting a destination address from the data area information and processing the information data area of the data area information if the destination address matches the unique identifier of the receiver; And And display means for displaying the processing result. The method of claim 9, Further comprising: a ROM for storing a plurality of application programs, The control means extracts a destination address and a service code from the data area information, and if the destination address matches the unique identifier of the receiver, reads and executes an application program corresponding to the service code from the ROM, according to an application program. A terminal characterized by processing an information data area of information.