KR100856921B1 - Method and system for providing program guide in ip digital broadcasting system - Google Patents

Abstract

The present invention relates to providing a program guide in an internet protocol-based digital broadcasting service. The apparatus for providing a program guide detects and stores content information in an Internet protocol packet transmitted to a user by the content information detection and management unit, and the content retrieval unit. Search for the broadcast content desired by the user in the Internet protocol packet using the stored content information to determine the priority, and select and synthesize the broadcast content having the determined priority using the search result by the content selection and synthesis unit. It selects a plurality of broadcast channels to include, and extracts and decodes the broadcast content included in the selected broadcast channel, respectively, to configure and display the program guide screen, which is why the IP-based digital broadcasting service through the search function individual According to user needs to provide a program guide that shows information of the broadcast content, the user selects a desired broadcast channel or broadcast content from broadcast channels or broadcast content gradually increases can be provided effectively.

IP packet, digital broadcast service, program guide, broadcast content, content information, content information table, broadcast channel.

Description

Method and apparatus for providing program guide in internet broadcasting based digital broadcasting service {METHOD AND SYSTEM FOR PROVIDING PROGRAM GUIDE IN IP DIGITAL BROADCASTING SYSTEM}

1 is a block diagram showing a method for providing a general EPG in a satellite or cable broadcasting system,

2 is a state diagram illustrating physical channel selection using a tuner in a satellite or cable broadcasting system.

3 is a block diagram illustrating an apparatus for providing a program guide for an IP-based digital broadcast signal in a broadcast system according to embodiments of the present invention;

4 is a block diagram showing the structure of a program guide providing apparatus according to a first embodiment of the present invention;

5 is a block diagram showing the structure of a program guide providing apparatus according to a second embodiment of the present invention;

6 is a block diagram showing the structure of a program guide providing apparatus according to a third embodiment of the present invention;

7 is a state diagram illustrating an example of displaying broadcast contents on a screen of a display unit according to embodiments of the present disclosure;

8 is a state diagram illustrating another example of displaying broadcast contents on a screen of a display unit according to embodiments of the present disclosure;

9 is a flowchart illustrating a method for providing a program guide for an IP-based digital broadcast signal in a broadcast system according to embodiments of the present invention.

The present invention relates to a method and apparatus for providing a program guide for an internet protocol-based digital broadcast signal. In particular, the present invention searches for one or more broadcast contents desired by a user among broadcast contents transmitted to a user in an internet protocol-based broadcasting system and programs the results. A method and apparatus for providing a guide.

Generally, program guides in television (TV) broadcast signals have been used as the primary means for the user to select a channel. Program guides for past analog broadcast signals were provided through magazines and newspapers, and in recent satellite and cable digital broadcasts, electronic program guides (hereinafter referred to as EPGs) for broadcast channels have been provided. It allows users to easily access channel information on the screen. Initially, the EPG provided information such as the title and airing time of the broadcast contents contained in the broadcast channel in the form of a text, but gradually developed into a mosaic EPG method in which a plurality of broadcast contents are produced in a small video screen and bundled into one screen. have. Accordingly, when the user selects the desired broadcast content in the text or mosaic EPG, the user can immediately move to the corresponding channel and view the selected broadcast content.

However, the EPG method has a disadvantage in that it is produced by a broadcasting station and transmitted to a user's terminal through a separate channel different from other broadcast contents due to limitations of physical transmission methods in satellite broadcasting and cable digital broadcasting. That is, as shown in the accompanying FIG. 1, broadcast contents in a broadcasting station are modulated by a physical channel-specific modulator 10 each having a 6 MHz frequency band, and multiplexed through a multiplexer 20 together with other broadcast contents. Then sent over a satellite or coaxial cable network. In this case, the terminal or the set-top box of the user side selects a limited number of (usually one) physical channels by using the tuner 30 that finds the corresponding 6 MHz frequency band of the physical channel as described in FIG. 2. In this way, the physical channel selected through the tuner 30 extracts the broadcast content through the demodulator 40, and the user can view only the extracted broadcast content. Therefore, the terminal or set-top box of the user side can receive broadcast content corresponding to one physical channel, so that the EPG is produced as a single broadcast content in a broadcasting station and transmitted through a separate physical channel.

In addition, when transmitting the EPG produced by a broadcasting station in the satellite broadcasting and cable broadcasting, when the amount of broadcasting content gradually increases and the number of channels increases, it is difficult to find a channel desired by the user in the EPG including information on all channels. There is a problem that becomes difficult. Moreover, users want more and more personalized services. With the current EPG, the broadcaster can pre-set the channel that the user wants or most frequently watched to the user, and the user can see only the preset user-defined channel as the EPG. There is a limit to allowing the user to effectively view the necessary channels from many channels from time to time.

Meanwhile, with the introduction of FTTH (Fiber To The Home: FTTH), IPTV transmits broadcast contents transmitted through existing satellite networks or digital cable networks to users using the Internet protocol (hereinafter referred to as IP). Is emerging. Such FTTH provides wide bandwidth or transmission speed to transmit a lot of broadcast contents to IP, so that IPTV is recognized as a main service of FTTH.

However, the conventional EPG for the IPTV used the EPG edited into one moving image as in the satellite broadcasting and cable broadcasting. This is because broadcast content in IPTV is delivered to an IP set-top box included in an IP packet as a user terminal, because the broadcast content is transmitted by a multicasting method of transmitting only broadcast content requested by the IP set-top box. That is, in the multicasting IPTV that transmits the broadcast content requested by the user terminal in an IP packet, it has been a conventional method to provide an EPG in the form of a text or a mosaic only when a user requests.

However, in the multicasting IPTV, since the IP packet for all broadcast contents can be transmitted at once or in large quantities in a network having a wide transmission band such as an FTTH network, only one requested broadcast content is transmitted due to the limitation of the transmission band. Instead, all broadcast content can be requested and delivered to the network termination device or IP set-top box of the subscriber network. IPTV broadcasting service using this multicasting method is expected to be applied in the future FTTH network.

Therefore, by providing an EPG to the user using such an IP method, a new technology is needed to solve the problem that the user can only watch the broadcast content in the corresponding channel in the existing satellite broadcasting and cable digital broadcasting.

Accordingly, an object of the present invention is to provide a method and apparatus for providing a program guide showing content information desired by a user in broadcast content included in an IP packet transmitted for an IP-based digital broadcast service.

Another object of the present invention is to select packets corresponding to a certain number of channels including broadcast content according to a prioritized search result among IP packets, and to express the selected IP packet (broadcast content) according to priority. The present invention provides a method and apparatus for providing a program guide.

The apparatus for providing a program guide in an internet protocol based digital broadcasting service for achieving the above objects of the present invention includes detecting content information in an internet protocol packet transmitted to a user, and detecting content information for storing the detected content information. A management unit, a content search unit for searching for broadcast content desired by a user in the Internet protocol packet using the stored content information, and determining a priority of the found broadcast content; and the determined priority using the search result of the broadcast content. A content selection and synthesis unit for selecting a plurality of broadcast channels including broadcast content having a ranking, extracting broadcast contents included in the selected broadcast channel, and decoding and synthesizing the extracted broadcast contents, respectively, to form a program guide screen. And, the configuration And a display unit for displaying the programmed program guide.

Another program guide providing apparatus in an internet protocol-based digital broadcasting service for achieving the objects of the present invention includes a content information detector for detecting corresponding content information in a selected Internet protocol packet at a predetermined periodic interval;

A line termination device of an internet protocol subscriber network storing the detected content information in a content information table and including a content information table manager for managing the content information table; And a content search unit for searching for broadcast content desired by a user in the Internet protocol packet using the content information table, and determining a priority of the found broadcast content, and using the determined result using the search result of the broadcast content. Selecting and synthesizing contents constituting a program guide screen for selecting a plurality of broadcast channels including broadcast content, extracting broadcast content included in the selected broadcast channel, and displaying each extracted broadcast content on one screen It characterized in that it comprises a network termination device of the Internet protocol subscriber network having a part.

In still another aspect of the present invention, there is provided an apparatus for providing a program guide in an internet protocol-based digital broadcasting service, comprising: a content information detector for detecting corresponding content information in a selected internet protocol packet at a predetermined periodic interval;

A line termination device of an internet protocol subscriber network storing the detected content information in a content information table and including a content information table manager for managing the content information table; And a search engine unit for receiving a search condition from a user and searching for broadcast content meeting a search condition input using the content information stored in the content information table, and selecting a broadcast channel in a selected broadcast channel using a search result of the broadcast content. And a network termination device of an internet protocol subscriber network including a channel decoding and synthesizing unit for extracting the included broadcast content, and configuring a program guide screen for decoding and displaying each extracted broadcast content on one screen. The circuit terminator includes a search result processor for determining a priority of the found broadcast content, delivering a search result according to the priority, and a broadcast content having the determined priority by using a search result of the broadcast content. Channel selector for selecting multiple broadcast channels And it characterized in that it comprises.

The program guide providing method in the Internet protocol-based digital broadcasting service for achieving the objects of the present invention, the process of detecting the content information in the transmitted Internet protocol packet and storing it in the content information table, and broadcast content search conditions from the user If is input, a process of searching for and processing broadcast content that matches the search condition in the Internet protocol packet using the stored content information, and a plurality of broadcast contents having priority using the search result of the broadcast content. Selecting a broadcast channel, extracting and decoding broadcast contents included in the selected broadcast channel, and configuring a program guide screen for displaying each decoded broadcast content on one screen; Organized Program Guide It characterized by including the step of displaying on the same screen.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals have the same reference numerals as much as possible even if displayed on different drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Embodiments of the present invention can be applied to an IPTV transmitted to a user using an Internet protocol (hereinafter, referred to as IP).

In the IPTV, all broadcast contents may be delivered to a subscriber network terminal of a user side or to a user terminal as a header address, and are not divided into physical channels. That is, in the IP network, broadcast content includes address information and the like in the packet header, and through this, the terminal and the set-top box may select broadcast content by viewing the corresponding address. This is different from satellite broadcasting and cable broadcasting in which a physical channel is selected by a tuner, which enables the channel selection of all channels simultaneously through header information. In the IPTV, all broadcast content of an IPTV having a source address or a destination address may be transmitted to a user terminal, thereby obtaining information on all or some selected broadcast contents.

Next, an apparatus for providing a program guide in a broadcasting system for digital broadcasting service using the IP scheme will be described in detail with reference to the accompanying drawings.

3 is a block diagram illustrating an apparatus for providing a program guide for an IP-based digital broadcast signal in a broadcast system according to embodiments of the present invention.

Referring to FIG. 3, an apparatus for providing a program guide in an IP-based broadcasting system includes a content information detection and management unit 110, a content search unit 120, a content selection and synthesis unit 130, and a display unit 140. Can be.

The content information detection and management unit 110 detects content information in an Internet Protocol (IP) packet transmitted to a user, stores the detected content information, and stores the content information detection unit 111 and the content information table management unit 112. It includes. Here, the content information is information or metadata related to content production and content, and may include all types of information necessary for a user to search for content, such as a title, a broadcast time, a character and character name, and a broadcast genre.

The content information detection unit 111 selects and copies the broadcast content and the transmitted Internet protocol packet having the content information at a predetermined periodic interval, and detects the corresponding content information from the copied Internet protocol packet. At this time, the influence on the transmission of all IP packets should be minimized.

The content information table manager 112 manages the content information table to systematically store the retrieved content information. In this case, the detected content information is processed and stored in a manner required for content retrieval, and at the same time, information of an IP packet and broadcast channel information including broadcast content are simultaneously stored. In addition, the content information table receives and stores broadcast content information from a network administrator or a service provider in addition to the content information received from the content information detector 111.

The content search unit 120 may search for broadcast content desired by the user in the Internet protocol packet using the stored content information, determine the priority of the found broadcast content, and may be separately configured according to the applied device. The search engine unit 121 and a search result processing unit 122 are included.

The search engine unit 121 receives a search condition from the user and searches a broadcast content or broadcast channel matching the input search condition from the content information table to derive a search result.

The search result processor 122 receives the derived search result from the search engine 121 and determines the priority using the search result. Here, the search result may include content information and channel information according to priority and information of an IP packet including broadcast content. In addition, the priority of the broadcast content may use weights according to the degree of matching of key search terms, whether live or recorded broadcast, and whether the previous broadcast is recorded. This can be done using the method.

When the search result processing unit 122 detects and stores the content information from the content information detecting unit 111, the search result processing unit 122 processes the search result and transmits the search result to the content selection and synthesizing unit. Or, when delivered from a service provider or the like, request the broadcast content from the network administrator or service provider that provided the broadcast content information.

The content selecting and synthesizing unit 130 includes a channel selecting unit 131 and a channel decoding and synthesizing unit 132, and the channel selecting unit 131 and the channel decoding and synthesizing unit 132 according to the applied device. ) Can be operated separately or integrated.

 The channel selector 131 simultaneously processes IP packets including broadcast content having a high priority by using the search result or input channel selection information among respective IP packets including transmitted broadcast content according to priority. As many channels as possible, that is, the number of channels or the number of broadcast contents that can be expressed on one screen of the display unit 140 are selected, and the broadcast contents included in each IP packet are extracted. In this case, the input channel selection information may include preferred channel information input by a user, and channel information provided regardless of a user's request input by a network administrator or a service provider, for example, channel information such as an advertisement. It may include.

In addition, the channel selector 131 selects all IP packets including broadcast content corresponding to a search result or channel selection information, and terminates transmission of the remaining IP packets until a request for broadcast content for a next page is received. .

The channel decoding and synthesizing unit 132 simultaneously extracts the originals of the respective broadcasting contents through a plurality of decoders, processes the audio and video signals, and displays the same on one screen of the display unit 140 according to priority. Configure the program guide screen. The program guide screen may be configured to display the broadcast content in the form of mosaic EPG, or to configure the screen to show all the broadcast contents independently in individual windows on one screen, and in the description referring to FIGS. 7 and 8 attached thereto. It will be described in detail again. Here, the channel decoding and synthesizing unit 132 configures a decoder corresponding to the number of selected channels or the number of broadcast contents.

 The display unit 140 displays the configured program guide on one screen. The search result desired by the user on the screen displayed as described above may be provided as a text EPG or a mosaic EPG in which only a video signal is synthesized.

For example, as shown in FIG. 7, the display unit 140 may display a video signal and an audio signal for a main broadcast content, that is, a broadcast content having the highest priority, on a screen by allocating a part of the screen. . In addition, as shown in FIG. 8, when the display unit 140 shows all broadcast contents independently in each individual window on a screen viewed by the user, the display unit 140 may display a main signal, that is, a video signal for the first broadcast content. Can be synthesized with the audio signal and other broadcast content can be synthesized with only the video signal.

The display unit 140 may insert not only the program guide but also other information in the form of text or video on the top, bottom, left and right sides of the screen.

Embodiments when the program guide providing apparatus having such a structure is applied to an IP-based subscriber network are as shown in FIGS. 4 to 6.

As shown in FIG. 4 to FIG. 6, the content information detection and management unit 110, the content search unit 120 and the content selection and synthesis unit 130 configured in the program guide device is interworked through the IP subscriber network. Each of the line termination device 200 and the network termination device 300 may be divided or configured as it is.

First, referring to FIG. 4 according to the first embodiment, the line terminating device 200 includes the content information detecting unit 111 and the content information table managing unit 112 and is transmitted to the network terminating device. The multiplexer 210 multiplexes a packet signal. The network terminator 300 includes a demultiplexer 310 for demultiplexing an IP packet signal input through the IP subscriber network from the line terminator 200, a content searcher 120, and content selection and synthesis. And a content information table 301 for storing content information and other related information, which are included in the IP packet and transmitted from the circuit termination apparatus 200.

Next, referring to FIG. 5 according to the second embodiment, the line terminator 200 includes the content information detector 111, the content information table manager 112, a search result processor 122, and a channel selector. 131 and the switch 220. According to the second embodiment, the network terminator 200 includes a switch 320 for switching an IP packet input from the line terminator 200 through an IP subscriber network, a search engine unit 121, and channel decoding. And a synthesizing unit 132 and a content information table 301.

Finally, referring to FIG. 6 according to the third embodiment, the network terminator 300 includes a content information detection and management unit 110, a content search unit 120, and a content selection and synthesis unit 130 of a program guide device. ) Without any distinction.

As shown in FIG. 4 and FIG. 5, the circuit termination apparatus 200 receives an IP-based broadcast signal, that is, an IP packet, from the content information detector 111 to retrieve content information, and then the content information table manager 112. ) Receives other broadcast content information from a network administrator or a service provider. The circuit termination apparatus 200 transmits the contents information table of the contents information table manager in an IP packet to the network termination apparatus 300 through an IP based subscriber network together with an IP based broadcast signal.

  The line terminator 200 may include an optical line terminal (OLT) or a router as well as the digital subscriber line access multiplexer (DSLAM) 210 and the switch 220. . The network termination device 300 may include an optical network terminal (ONT) or an optical network unit (ONU) or a digital subscriber line as well as the demultiplexer 320 and the switch 320. ) May include a modem. Here, some functions included in the network termination device may be included in a user terminal such as a set top box or a home gateway.

A method for providing a program guide to a user in an IP-based digital broadcasting service in an apparatus for providing a program guide according to the above embodiments will be described with reference to the accompanying drawings. The program guide providing method will be described with reference to the program guide providing apparatus as shown in FIG. 1, and it should be noted that the present invention can be applied to all of the first to third embodiments.

9 is a flowchart illustrating a method for providing a program guide for an IP-based digital broadcast signal in a broadcast system according to embodiments of the present invention.

Referring to FIG. 9, the program guide apparatus receives an IP-based broadcast signal transmitted in step 401. In operation 402, the program guide providing apparatus selects an IP packet at regular intervals without copying the IP packet from the IP-based broadcast signal through the content information detector 111, and copies the selected IP packet. In step 403, content information of broadcast content is detected from the copied IP packet.

In operation 404, the program guide providing apparatus stores the content information detected through the content information table manager 112 in the content information table in a predetermined manner. In this case, when the content information table manager 112 receives other content information from a network administrator or a service provider, the content information table manager 112 also stores the other content information in a predetermined manner.

In operation 405, the program guide providing apparatus determines whether a search condition for desired broadcast content is input from the user to the content searching unit 120. As a result of the check, if the search condition is not input, the standby state is maintained. On the other hand, when the search condition is input, the program guide apparatus searches for the corresponding broadcast content using the content information table to derive the search result in step 406 and then processes the search result in step 406. . At this time, the search result processing unit 122 of the content searching unit 120 determines the priority of the corresponding broadcast content. Here, the search condition input by the user is a search term for all types of information necessary for the user to search the content, such as a title, a broadcast time, a person and character name, and a broadcast gen included in the information of the broadcast content, and a search condition combining the same It can contain an operator to create a. The search result includes channel information and broadcast content information according to the priority, and information of an IP packet including broadcast content.

Then, in step 408, the program guide providing apparatus selects, on the screen, an IP packet including broadcast content having a high priority by using the search result or input channel selection information by the content selection and synthesis unit 130 according to the priority. The number of broadcast channels (IP packets) is selected as many as the number of constant channels or broadcast contents that can be expressed, and the broadcast contents included in each IP packet are extracted in step 409. That is, the originals are extracted at the same time using decoders corresponding to the selected channel number or broadcast content number in all the extracted broadcast contents. At this time, the content selection and synthesizing unit 130 selects all the corresponding IP packets including the broadcast content corresponding to the search result or the channel selection information and terminates the transmission of the remaining IP packets. When delivering the selected IP packet to the channel decoding and synthesizing unit, all IP packets can be transmitted or processed simultaneously by the channel decoding and synthesizing unit, that is, as many IPs as the number of channels or broadcast contents that can be represented on one screen. After transmitting the packet, the remaining selected IP packet is terminated until the broadcast content request for the next page is received.

Then, in step 410, the program guide providing apparatus processes the respective audio and video signals and synthesizes the broadcast contents into a mosaic EPG form so that they can be expressed on one screen according to the priority, or all the windows independently of each window on one screen. The screen is configured to show broadcast contents, that is, the program guide screen is configured. More specifically, the content selection and synthesizing unit 130 processes the search results at the same time, that is, synthesizes as many channels or broadcast content as one page according to the priority to be displayed on one screen to the first page. Pass for display. When the content selection and synthesizing unit 130 receives a request for the next page for the search result, the content selection and synthesizing unit 130 synthesizes as many channels or broadcast contents as can be expressed on one screen according to the next priority, and delivers the content to the second page. . In addition, the content selection and synthesizing unit 130 synthesizes and transmits the channel or broadcast content implemented on the previous screen in one page according to the priority.

In operation 411, the program guide providing apparatus displays the configured program guide screen on one screen of the display unit 140. In this case, other information in the form of text or video may be displayed on the upper, lower, left and right sides of the screen.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention provides a program guide showing information of broadcast contents in accordance with the needs of individual users through a search function in an IP-based digital broadcasting service. A channel or broadcast content can be selected and effectively provided.

Claims (27)

A content information detection and management unit for detecting content information in an Internet protocol packet transmitted to a user and storing the detected content information; A content search unit for searching for broadcast content desired by a user in the Internet protocol packet using the stored content information, and determining a priority of the found broadcast content; Using the search result of the broadcast content, a plurality of broadcast channels including the broadcast content having the determined priority are selected, the broadcast content included in the selected broadcast channel is extracted respectively, and the extracted broadcast content is decoded and synthesized. The content selection and compositing unit constituting the program guide screen; And a display unit for displaying the configured program guide. An apparatus for providing a program guide in an internet protocol based digital broadcasting service. The method of claim 1, wherein the content information detection and management unit, A content information detection unit for selecting and copying the transmitted Internet protocol packet having the broadcast content and the content information at a predetermined periodic interval, and detecting corresponding content information in the copied Internet protocol packet; And a content information table manager configured to store the detected content information in a content information table and to manage the content information table. The method of claim 2, And the content information table manager stores the detected content information and other content information input from a network management or service provider in the content information table. The method of claim 1, wherein the content search unit, A search engine receiving a search condition from the user and searching for broadcast content meeting the search condition using the content information stored in the content information table; And a search result processor for determining a priority of the searched broadcast content and delivering a search result according to the priority. The method of claim 1, wherein the content selection and synthesis unit, A channel selector for selecting a plurality of broadcast channels including broadcast content having the determined priority by using the search result of the broadcast content on a screen of the display unit according to the priority; A plurality of decoders respectively extracting broadcast contents included in the selected broadcast channel and decoding respective extracted broadcast contents; Internet synthesizer based on the Internet Protocol characterized in that it comprises a synthesizer for synthesizing the decoded broadcast content into a single page in the form of an electronic program guide according to the priority to configure a program guide screen for displaying on one screen of the display unit Program guide providing device in a broadcast service. The method of claim 5, The synthesizer configures a program guide screen for separately displaying the screens of the broadcast content into pages according to the priority on one screen of the display unit, and displays them independently in individual windows, and displays the program guide screen according to a page request by a user. Apparatus for providing program guide in an internet protocol based digital broadcasting service, characterized in that the modification. The method of claim 1, The display unit provides a program guide in the Internet protocol-based digital broadcasting service, characterized in that for inserting the information in the form of text and video in the upper, lower, left and right areas of the screen displaying the configured program guide. A content information detector for detecting corresponding content information in a selected Internet protocol packet at a preset periodic interval; A line termination device of an internet protocol subscriber network storing the detected content information in a content information table and including a content information table manager for managing the content information table; And A content search unit for searching for broadcast content desired by a user in the Internet protocol packet using the content information table, and determining a priority of the found broadcast content; Using the search result of the broadcast content, a plurality of broadcast channels including the broadcast content having the determined priority are selected, the broadcast content included in the selected broadcast channel is extracted, and each extracted broadcast content is displayed on one screen. And a network terminating device of an internet protocol subscriber network having a content selection and synthesizing unit constituting a program guide screen for displaying on a program guide screen. The method of claim 8, The content information table management unit stores the detected content information and other content information input from a network management or service provider in the content information table. The method of claim 9, The content information table manager includes the content information table in the Internet protocol packet to transmit the Internet Protocol-based broadcast signal to the network end device through an Internet-based subscriber network. Guide provision device. The method of claim 8,  And the network terminating device stores a content information table, which is included in the internet protocol packet and transmitted by the content information table manager, in the internet protocol-based digital broadcasting service. The method of claim 8, The content selection and synthesizing unit selects a plurality of broadcast channels including broadcast content having the determined priority by using the search result of the broadcast content on the screen of the display unit according to the priority. Apparatus for providing a program guide in the Internet protocol-based digital broadcasting service. The method of claim 12, The content selection and synthesizing unit divides the screen of the broadcast content into pages according to the priority, and changes the program guide screen according to a page request by a user. . A content information detector for detecting corresponding content information in a selected Internet protocol packet at a preset periodic interval; A line termination device of an internet protocol subscriber network storing the detected content information in a content information table and including a content information table manager for managing the content information table; And A search engine unit for receiving a search condition from a user and searching for broadcast content meeting a search condition input using the content information stored in the content information table; A channel decoding and synthesis unit configured to extract a broadcast content included in a selected broadcast channel by using the search result of the broadcast content, and to configure a program guide screen for decoding and displaying each extracted broadcast content on one screen; It includes network termination device of internet protocol subscriber network. The circuit terminator includes a search result processor that determines a priority of the found broadcast content, delivers a search result according to the priority, and a broadcast content having the determined priority by using a search result of the broadcast content. And a channel selector for selecting a plurality of broadcast channels. The method of claim 14, And the content information table manager stores the detected content information and other content information input from a network management or service provider in the content information table. The method of claim 15, The content information table manager includes the content information table in the Internet protocol packet to transmit the Internet Protocol-based broadcast signal to the network end device through an Internet-based subscriber network. Guide provision device. The method of claim 14,  And the network terminating device stores a content information table, which is included in the internet protocol packet and transmitted by the content information table manager, in the internet protocol-based digital broadcasting service. The method of claim 14, The channel selector selects a plurality of broadcast channels including broadcast content having the determined priority by using the search result of the broadcast content on the screen of the display unit as many as can be displayed according to the priority. Program guide providing device in protocol based digital broadcasting service. The method of claim 14, The channel decoding and synthesizing unit divides the screen of the broadcast content into pages according to the priority, and changes the program guide screen according to a page request by a user. . Detecting and storing the content information in the transmitted internet protocol packet in a content information table; When a broadcast content search condition is input by a user, searching for and processing broadcast content that matches the search condition in the Internet protocol packet by using the stored content information; Selecting a plurality of broadcast channels including broadcast contents having priority using the search results of the broadcast contents; Extracting and decoding broadcast contents included in the selected broadcast channel, respectively; Configuring a program guide screen for displaying each decoded broadcast content on one screen; And displaying the configured program guide on the one screen. The method of claim 20, And storing the other content information input from a network management or a service provider in the content information table. The method of claim 20, wherein searching for and processing broadcast content that meets the search condition comprises: Receiving a search condition from the user; Searching for broadcast content that meets the input search condition using the content information stored in the content information table; And determining a priority of the searched broadcast content and processing a search result. The method of claim 20, The selecting of the plurality of broadcast channels including the broadcast content may include displaying the plurality of broadcast channels including the broadcast content having the determined priority by using a search result of the broadcast content in the priority order on one screen of the display unit. How to provide program guide in internet protocol based digital broadcasting service characterized by selecting as many as possible. The method of claim 20, The program guide screen is a program guide providing method according to the Internet protocol-based digital broadcasting service, characterized in that the screen is composed by combining each decoded broadcast content in the form of an electronic program guide according to the priority. The method of claim 20, The program guide screen is a screen configured to display screens of broadcasting content in pages according to the priority on one screen and to be displayed independently in individual windows, and is changed according to a page request by a user. How to provide program guide in digital broadcasting service. The method of claim 24 or 25, The program guide screen is a method of providing a program guide in the Internet protocol-based digital broadcasting service, characterized in that to insert the information in the form of text and video in the upper, lower, left and right areas of the screen displaying the configured program guide. The method of claim 20, The content information table is included in the internet protocol packet and transmitted with an internet protocol based broadcast signal to a network end device through an internet based subscriber network.

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