KR20050109803A - Method for servicing information in a satellite broadcast system - Google Patents

Abstract

A method of providing an information notification service of a satellite broadcasting system according to the present invention includes registering text information desired by a user and identification information of a user's satellite broadcasting receiver with a satellite broadcasting company, and satellite broadcasting providers of a satellite broadcasting providing group. Determining whether a satellite broadcasting receiver having identification information corresponding to the registered text information is watching satellite broadcasting when the same text information as the registered text information is generated by any one of the satellite broadcasting providers; When the satellite broadcasting receiver having the identification information is receiving the satellite broadcasting, providing brief information about the text information to the satellite broadcasting receiver having the identification information, and processing the OSD screen by providing the brief information provided by the satellite broadcasting company. Step and the text corresponding to the brief information when the OSD screen is selected The display comprises received from a satellite broadcaster.

As described above, the present invention registers the character information and the identification information of the satellite broadcasting receiver to be provided by the user in the satellite broadcasting service provider, and then informs the user when receiving the brief information on the registered text information. Accordingly, by receiving the text information corresponding to the brief information, the user may be provided with the desired text information during the satellite broadcast reception.

Description

Method of providing information notification service of satellite broadcasting system {METHOD FOR SERVICING INFORMATION IN A SATELLITE BROADCAST SYSTEM}

The present invention relates to a satellite broadcasting system, and more particularly, to a method for providing information notification service of a satellite broadcasting system.

Satellite broadcasting is a broadcasting system that can receive broadcast signals from ground stations (broadcasting earth stations) using broadcast satellites, and can receive them directly with satellite receiving antennas in each home, and compares the information with existing terrestrial or cable broadcasting systems. It is a broadcasting method in which the selection range is greatly expanded. The satellite broadcasting system receives a digital broadcast signal in the form of a bit stream on a packet basis, extracts a broadcast signal of a selected channel among broadcast signals received by a transport demuxer, and then extracts the broadcast signal. Is decoded by a Motion Picture Expert Group (MPEG) scheme and provided to a display device.

The digital satellite broadcasting signal provided to the satellite broadcasting receiver has a structure in which PAT (weak PAT) and PMT (weak PMT) packet information are transmitted on a predetermined time (T1) basis. . Here, the PAT is a packet that provides PID information of a transport packet that transmits a table describing components of a program. The PAT is a network information table (NIT) and a service description table (SDT) for all transmitted bit streams. ), TDT (Time Data Table), RCM (Receiver Command Message) and PMT PID information, and PMT consists of information defining a program by mapping a program number to a bit stream including encoded video, audio, and data. .

The digital broadcast receiver performs the above-described transport demultiplexing process by referring to the PMT and PAT information, extracts and decodes the video and audio signals for the channel desired to be viewed, and displays them on the screen. The overall operation is as follows.

When the bit stream of the satellite broadcast signal transmitted from the satellite is received by the satellite broadcast receiver through the antenna, the event data of the transmitted bit stream, that is, the PAT / PMT data is extracted, and the PID information is extracted again and stored in the memory means. After that, the current time information is extracted from the TDT information. Subsequently, after determining the video mode of the transmitted video signal based on each event of EIT information, the display mode of the receiver is switched to the corresponding video mode. In addition, after reading the type of language for the audio signal of each channel, the corresponding language mode, that is, stream and audio channel, is set.

Meanwhile, the above-described EIT information includes information about events of all satellite broadcasting channels in chronological order, and includes program guide information for each channel and various decoding information for an audio signal, for example, in a video signal. For example, a component descriptor indicating a type and a language information on an audio signal, a content descriptor indicating information according to a type of a program, and a rating descriptor indicating a grade of a program are included. These descriptors are essential information necessary to extract and decode a broadcast signal of a specific channel selected by a user.

Users who use these satellite broadcast receivers not only receive satellite broadcasting from Korea, but also receive satellite broadcasting signals from various countries and watch thousands of channels, so they can immediately see text information of their country or country of interest while watching satellite broadcasting. There is no problem.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art, and when a specific text information desired by a user occurs in an unspecified satellite channel, brief information about the text information is provided to the user's satellite broadcasting receiver and then displayed. The present invention provides a method of providing an information notification service of a satellite broadcasting system capable of providing text information to a user while receiving satellite broadcasting by providing text information corresponding to brief information according to a user's selection.

In order to achieve the above object, the present invention provides a satellite broadcasting system comprising a satellite broadcasting providing group for providing satellite broadcasting received from a plurality of satellites to a user's satellite broadcasting receiver and sharing text information in cooperation with each other. A notification service method comprising the steps of: registering text information desired to be provided by a user and identification information of the satellite broadcast receiver of the user with a satellite broadcaster, and at any one of the satellite broadcasters of the satellite broadcast provider group; Determining whether a satellite broadcast receiver having identification information corresponding to the registered text information is watching satellite broadcast when the same text information as the registered text information is generated; and as a result of the determination, the identification information has the identification information. If the satellite broadcast receiver is receiving satellite broadcasts Providing brief information about the information to the satellite broadcasting receiver having the identification information, OSD processing the brief information provided by the satellite broadcasting provider, and if the OSD screen is selected, corresponds to the brief information. And receiving and displaying the received text information from the satellite broadcasting service provider.

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

1 is a block diagram illustrating a satellite broadcasting system for explaining an information notification service process according to the present invention.

Referring to FIG. 1, the satellite broadcasting system applied to the present invention includes a satellite broadcasting providing group 100 composed of a plurality of satellite broadcasting providers, and a satellite broadcasting receiver 200, and the satellite broadcasting receiver 200 is a tuner. And a demodulator 202, a microcomputer 204, a transport demultiplexer 206, an MPEG decoder 208, a memory 210, an audio signal processor 212, a video signal processor 214, an OSD unit ( 216, a warning unit 218, and an LED 220.

Satellite broadcasters of the satellite broadcast providing group 100 receive satellite broadcasts from a plurality of satellites and provide them to the user's satellite broadcast receiver 200, and in particular, mutually share text information such as text information such as emergency news. In addition, a database (not shown) in which an identification number of a user's satellite broadcasting receiver and a type of text information to be provided by the user is set is provided. That is, when text information is generated by any one satellite broadcaster, the satellite broadcasters may be provided with text information set by an arbitrary user while providing the satellite broadcast received from the satellite to the satellite broadcast receiver 200 of any user. When generated, the satellite broadcasting receiver 200 provides a transport stream in which brief information corresponding to the generated text information is inserted.

The tuner and demodulator 202 receives the satellite broadcast signal transmitted from any satellite broadcaster and is selected by the user in the broadcast signal received via the satellite broadcast receiving antenna based on the tuning control signal provided from the microcomputer 204. The broadcast channel is tuned, and the tuned broadcast channel signal is restored to the transport stream through intermediate frequency conversion, demodulation, and error correction.

The transport demultiplexer 206 extracts a broadcast signal and / or a code for each channel from the signals transmitted from the tuner and the demodulator 110. In this case, when the character information is extracted, the transport demultiplexer 206 provides the extracted character information to the microcomputer 204 and provides a broadcast signal, that is, an audio and video signal, to the MPEG decoder 208.

The MPEG decoder 208 variable-length decodes the compression-encoded video signal in consideration of the spatiotemporal correlation of the compressed-coded audio signal and the video signal of the bit stream output from the transport demultiplexer 206, for example, the video signal. It recovers the original signal before encoding using decoding techniques such as inverse DCT, inverse quantization, and motion compensation.

The audio signal processor 212 converts the digital audio signal decoded and output from the MPEG decoder 208 into an analog audio signal and outputs the analog audio signal through a speaker not shown, and a code corresponding to the character information to be provided by the user is received. In the case of receiving a predetermined voice message informing of the reception and outputs to the speaker.

The video signal processor 170 converts the video signal decoded by the MPEG decoder 208 into an NTSC or PAL analog video signal through a predetermined signal processing process and then displays the video signal on a monitor (not shown). The OSD screen is displayed at a predetermined position of the monitor when the video signal provided to the MPEG decoder 208 is displayed on the monitor.

The microcomputer 204 is a microprocessor that controls the overall operation of the satellite broadcasting receiver 200. The microcomputer 204 receives a signal according to an operation from the key input unit 210 and controls the operation of the satellite broadcasting receiver 200 in response thereto. In particular, the microcomputer 204 controls the OSD unit 216 to generate an OSD screen for character information setting according to the manipulation of the key input unit 210 corresponding to the character information setting request of the user, and then the video signal processing unit 214. The display is displayed on the monitor through the OSD, and text information selected by the user on the OSD screen, that is, text information desired to be provided by the user and identification information of the satellite broadcasting receiver, is provided to any satellite broadcaster. The text information provided from the satellite broadcast receiver 200 and the identification information of the satellite broadcast receiver 200 are shared by all satellite broadcasters.

  In this case, the microcomputer 204 provides the OSD unit 216 with the information related to the character, that is, the simplified information or the character information when the information related to the character is provided by the transport demultiplexer 206, and the OSD unit 216. ) Configures the information provided from the microcomputer 204 as an OSD screen and provides the information to the video signal processor 214.

In addition, when the information related to the text is provided by the transport demultiplexing unit 206, the microcomputer 204 generates a predetermined notification voice message and provides it to the warning unit 218 or flashing means such as an LED 220. Informs the user that there is text information that the user wants to receive.

A process of notifying the user of the text information by the satellite broadcasting system having the above configuration will be described with reference to FIG. 2.

As shown in FIG. 2, first, when a user operates a key input unit 210 and selects a menu to receive text information during a satellite broadcast application, the microcomputer 204 responds to an operation of the key input unit 210 to display an OSD unit. The control unit 216 provides an OSD screen for setting the text information request, and transmits the text information selected on the OSD screen and identification information of the satellite broadcasting receiver 200 to any satellite broadcasting service provider of the satellite broadcasting providing group 100. (S300). Accordingly, the satellite broadcaster stores text information provided from the satellite broadcast receiver 200 and identification information of the satellite broadcast receiver 200 in a database (S302). Identification information of the satellite broadcasting receiver 200 and text information desired to be provided by the user are shared by all satellite broadcasting providers of the satellite broadcasting providing group 100.

The satellite broadcaster receives the text information and identification information of the satellite broadcast receiver 200 to be provided by the user through the above process in the satellite broadcast receiver 200 and stores it in the database.

Thereafter, the satellite broadcasting service provider continuously monitors whether text information is generated (S304), and when the text information is generated from any satellite broadcasting service provider during monitoring, the satellite broadcasting service provider has text information matching the text information generated in the database. It is determined whether there exists (S306).

As a result of the determination in step S306, if there is text information that matches the character information generated in the database, the satellite broadcasting company stores the information in the database, and withdraws the identification information of the satellite broadcasting receiver 200 from the database, and the extracted satellite broadcast It is determined whether the receiver 200 is receiving satellite broadcast (S308 and S310).

As a result of the determination in step S310, when the satellite broadcast receiver 200 corresponding to the identification information is receiving the satellite broadcast, the satellite broadcaster transmits brief information corresponding to the text information to the satellite broadcast receiver 200 having the identification information. (S312).

The microcomputer 204 of the satellite broadcasting receiver 200 receives the brief information corresponding to the text information through the transport demultiplexing unit 206 and then provides it to the OSD unit 216, and the OSD unit 216 provides the text. The simplified information about the information is configured as an OSD screen and provided to the video signal processor 214 (S314). The video signal processor 214 reconstructs the video signal and the OSD screen decoded by the MPEG decoder 208 and displays the same on a display device such as a monitor (S316).

Subsequently, when the user selects an OSD screen displayed on the monitor using the key input unit 210 or manipulates a text information request key of the key input unit 210 (S318), the satellite broadcast receiver 200 receives a satellite broadcast providing group ( In step 100, text information is requested and received from the satellite broadcasting service provider that transmits the brief information on the text information (S320).

The microcomputer 204 provides the text information received through the transport demultiplexing unit 206 to the OSD unit 216. The OSD unit 216 configures the video information processing unit 214 by configuring the text information as an OSD screen. The display is displayed on a display device such as a monitor (S322).

In an exemplary embodiment of the present invention, for example, the brief information on the text information is configured as an OSD screen and displayed on the display device. However, when the brief information on the text information is received, a blinking device such as an LED 220 is used. You can tell the user.

As described above, the present invention registers the text information and the identification information of the satellite broadcasting receiver to be provided to the satellite broadcasting service provider, and then informs the user when receiving the brief information on the registered text information. By receiving the text information corresponding to the brief information, the user may be provided with the desired text information during the satellite broadcast reception.

1 is a block diagram illustrating a satellite broadcasting system for explaining an information notification service process according to the present invention;

2 is a flowchart illustrating an information notification service process of a satellite broadcasting system according to the present invention.

<Description of the code | symbol about the principal part of drawing>

100: satellite broadcasting providing group 200: satellite broadcasting receiver

Claims (3)

An information notification service method of a satellite broadcasting system comprising a satellite broadcasting providing group for providing satellite broadcasting received from a plurality of satellites to a user's satellite broadcasting receiver and sharing text information in cooperation with each other. Registering text information to be provided by a user and identification information of the satellite broadcasting receiver of the user to a satellite broadcasting company; When one of the satellite broadcasting providers of the satellite broadcasting providing group generates the same text information as the registered text information, the satellite broadcasting receiver having the identification information corresponding to the registered text information may perform the satellite broadcasting. Determining if you are watching, As a result of the determination, when the satellite broadcasting receiver having the identification information is receiving the satellite broadcasting, providing brief information about the text information to the satellite broadcasting receiver having the identification information; OSD screen processing and providing brief information provided by the satellite broadcasting service provider; If the OSD screen is selected, receiving and displaying text information corresponding to the brief information from the satellite broadcasting company; Information notification service providing method of a satellite broadcasting system comprising a. The method of claim 1, The satellite broadcasting receiver, when brief information on the text information registered by the user is received, blinking the LED to inform the user, characterized in that the satellite broadcasting system. The method of claim 1, The satellite broadcasting receiver, when receiving brief information on the text information registered by the user, generates a predetermined voice message and transmits the information to the satellite broadcasting system, characterized in that for transmitting by audible means.