KR101085392B1 - Branch broadcasting method and receiving method and transmitting and receiving device for branch broadcasting - Google Patents

Abstract

The present invention integrates and broadcasts broadcast programs that are related to each other into a single high-level channel, and receives the broadcast, and the branch broadcast method and the reception method thereof, and the branch broadcast, which can watch the branch broadcast according to a user's selection. It provides a transmitting and receiving device for. The branch broadcast reception method includes receiving broadcast data at a terminal; Determining whether the broadcast data is data for branch broadcasting; Extracting information on a branch by parsing a UPT field in a TS packet of the broadcast data in case of data for branch broadcasting; Displaying a quarterly selection screen based on parsed branch information; And determining the end of the branch broadcast.

Digital Multimedia Broadcasting (DMB), Multiplexing, Program Specific Information (PSI), Program Association Table (PAT), Program Map Table (PMT), User Private Table (UPT)

Description

Branched broadcasting method and method of receiving the same broadcasting, and transmitting and receiving device for the branched broadcasting}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to digital broadcasting and a method of receiving the same, and more particularly, to a broadcasting method for multiplexing multiple broadcast programs on a single channel, a method for receiving the broadcast, and a transmission and reception apparatus for branch broadcasting.

Analog TV broadcasting, such as NTSC (National Television System Committee) TV broadcasting, was able to broadcast only one program in a frequency band of one radio frequency (RF) channel.

In contrast, next-generation digital TV broadcasts, such as HDTV (High Definition Television), have not only a larger number of RF channels than analog TV broadcasts, but also have the flexibility to allocate the necessary bit rates for services when needed. That is, it is possible to transmit a plurality of programs in a limited transmission bandwidth of one RF channel. For example, in some program schedules, it is possible to organize SD (Standard Definition) programs such as analog TV broadcasts into multiple channels, and some time zones to organize one HD program into channels. An example of this is the United States ATSC Television System Committee (ATSC) standard. According to the ATSC, it is possible to simultaneously broadcast at least one sub-HD program and up to six sub-SD programs in one RF channel corresponding to one analog channel.

As described above, since it is possible to transmit a plurality of programs in a limited transmission bandwidth of one RF channel, a broadcaster can serve a wider variety of programs, thereby allowing users to select a wider range of programs.

However, until now, since a service for multiplexing multiple broadcast programs in one channel and broadcasting and receiving a receiver to selectively watch the broadcast have not been developed, broadcasters still transmit different programs to digital multichannels. Only service that has been doing.

The problem to be solved by the present invention is a branch broadcasting method and a receiving method for integrating and broadcasting broadcast programs related to each other in a single high-level channel, and receiving the broadcast to watch the branch broadcast according to the user's selection, And to provide a transmission and reception apparatus for the branch broadcasting.

In order to solve the above problems, the present invention comprises the steps of encoding the broadcast program produced by quarter; Multiplexing the encoded broadcast program into a packet stream; Converting the multiplexed packet stream into an analog signal; And transmitting the analog signal at a predetermined frequency, and including branching information in a user private table (UPT) field of a transfer stream (TS) packet to be transmitted in the multiplexing step, according to a user's selection. Provided is a branch broadcasting method for broadcasting so as to branch and watch the broadcast program.

The information may include PID (Packet Identifier) information for audio and video packets to be branched and PID information for a data packet including information about the branch. In addition, the data packet includes information about a title and a running time of the work if the specific program of the branch broadcast is started, and if the program is after the start and before the branch, the content of the program up to now. If the program is after a quarter, each quarter may include a description of the previous quarter, a summary of the contents, and information about the time played. The information may include PID (Packet Identifier) information on audio and video packets to be branched and information on a program according to the reception of the branch broadcast.

Meanwhile, in the multiplexing step, a transfer stream (TS) packet to be transmitted is configured, and the TS packet may be configured according to the standard of the standard TS packet for DBM broadcasting.

The present invention also comprises the steps of receiving broadcast data at the terminal to achieve the above object; Determining whether the broadcast data is data for branch broadcasting; Extracting information on a branch by parsing a UPT field in a TS packet of the broadcast data in case of data for branch broadcasting; Displaying a quarterly selection screen based on parsed branch information; And determining the end of the branch broadcast.

On the other hand, when the UPT field includes PID (packet identifier) information on audio and video packets targeted for branching and PID information on a data packet including information on the branching, the UPT field parsing step includes: Parse the PID information for the audio and video packet and the PID information for the data packet, and if the user selects a branch target according to the information about the program included in the data packet, the audio and video selected in the display step The packet can be decoded and displayed as the selection screen.

Furthermore, the present invention, in order to achieve the above object, an external input device for inputting a broadcast program for branch broadcasting; An encoding module for encoding the broadcast program; A mux for multiplexing the encoded broadcast program into a packet stream; And a transmitter configured to convert the multiplexed packet stream into an analog signal and transmit the signal at a predetermined frequency, wherein the mux includes information about a branch in an UPT field of a TS packet to be transmitted. Provided is a transmission apparatus for branch broadcasting, which enables branched broadcasting to be viewed.

On the other hand, the present invention, in order to achieve the above object, a receiver for receiving a TS packet signal including a branch broadcast; A signal processing and control module which processes the received TS packet signal so as to be displayed in video and audio and controls the signal processing; And a display unit configured to display video and audio for the corresponding branch broadcast according to the signal processing and control module. Based on the information on the branch broadcast obtained by parsing the TS packet in the signal processing and control module. The present invention provides a receiving apparatus for branch broadcasting, which enables to selectively watch branch broadcasting.

In the present invention, the signal processing and control module includes: a demux for separating the TS packet into packets of video, audio, data, and information areas; A parser for parsing an information area among the packets separated through the demux; A decoder for decoding the video and audio packets; A controller controlling components of the receiving device; And a key input unit which is transmitted to the controller to branch to a corresponding branch broadcast when a user performs an input based on the information of the parser.

The branch broadcasting method and the reception method thereof according to the present invention, and the transmission and reception apparatus for the branch broadcasting enable the broadcasting company to provide various broadcasting services, and accordingly, the viewer selects and decides the contents of the content, Receiving a broadcast program to increase the participation and satisfaction of viewers.

In addition, by providing the entire contents in real time broadcasting, it is possible to fully know the program even when watching in the middle of the broadcasting. In some cases, focusing only on a desired portion of a sports video or entertainment program, By doing so, it is possible to further improve the viewer's satisfaction with watching the broadcast program.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, when a component is described as being connected to another component, it may be directly connected to another component, but a third component may be interposed therebetween. In addition, in the drawings, the structure or size of each component is exaggerated for convenience and clarity of explanation, and parts irrelevant to the description are omitted. Like numbers refer to like elements in the figures. It is to be understood that the terminology used is for the purpose of describing the present invention only and is not used to limit the scope of the present invention.

When a conventional broadcasting station produces one drama, a movie, or an entertainment program, in the case of a drama or a movie, the result has already been determined into a single broadcast program, and in the case of an entertainment program or a sports relay, the event that is going on in time is kept as it is. The film was relayed by broadcasting. Accordingly, the viewer can only watch what is being broadcast, but cannot actively select and watch a situation or scene.

However, current broadcast technologies can combine two channels, or multiplex them, in one high-level channel. Accordingly, two or more related broadcast programs can be integrated and transmitted simultaneously in one channel.

For example, when producing a drama or a movie, a broadcasting station not only produces a video having one ending, but also produces videos that may have various endings, and simultaneously transmits the images to one channel for broadcasting and viewers. Is a concept that allows users to select a plot or content while watching the channel. On the other hand, in the case of an entertainment program, each celebrity who has appeared is filmed and broadcasted at the same time so that viewers can concentrate on the favorite celebrity to watch the program, or in the case of sports broadcasting, each channel is photographed from various angles as one channel. By transmitting at the same time, the viewer can select the desired angle to watch the sport.

1 is a conceptual diagram illustrating branch broadcasting in a DMB terminal according to an embodiment of the present invention.

Referring to FIG. 1, when a broadcasting station broadcasts a multiplexed data signal to one channel, the DMB terminal receives it, the user watches the corresponding channel, and when the selection occurs, the broadcast is selected. Will diverge. Here, the first branch is represented by branch 1 and branch 2. If the user selects the branch 1 to watch the corresponding branch broadcast and the selection occurs again, the branching is performed to one of the branch 3 and branch 4 broadcasts through the selection. In this way, in one channel, the viewer can watch the broadcast contents in the direction selected by the user according to the situation. Of course, it is also possible to switch to the other branch broadcast while watching another branch broadcast from time to time. In such a case, in order to allow viewers to know the contents of the entire switched branch broadcast, it is desirable to have a brief summary displayed through text.

In this figure, a drama or a movie has been described as an example, but the above-described entertainment program or sports may also be broadcast in various quarters. In addition, although the DMB is exemplified, the branch broadcasting method or the receiving method of the present invention can be adopted to any receiving apparatus capable of viewing the form of broadcasting.

2 is a structural diagram showing a structure of a TS packet used for branch broadcasting of the present invention.

Referring to FIG. 2, in order to branch broadcasting, a certain protocol for branch broadcasting should be stored in a data packet transmitted through the broadcasting, and the receiving device parses the protocol to indicate that the broadcasting is branch broadcasting so that the viewer can watch the branch broadcasting. To be present.

The data packet of FIG. 2 shows a data structure of a multiplexed TS (transfer stream) packet used for data transmission in an MPEG-2 system. The data packet is a PSI (Program Specific Information) table, which is part of data specification information. There are four tables as follows. That is, a program association table (PAT), a program map table (PMT), a conditional access table (CAT), and a network information table (NIT).

The PAT lists the PID (Packet Identifier) of all PMTs in the stream. Normally, the PID of a TS packet having PAT information is always 0x0. The PMT has information about each program. That is, each broadcast program has a PMT, and also has its own PID with the PMT, which has data about which PID is associated with which program. For example, if a program consists of an MPEG-2 video stream, the PMT shows the PID associated with it. That is, it depicts the video stream and the video type (MPEG-2) that contains the video. The PMT may also include descriptors that additionally provide information about the continuous stream. On the other hand, the regulations for CAT and NIT are not yet defined in the MPEG-2 standard protocol, and they literally include information on access conditions and internet network information.

The portion other than the PSI table area is a pay-load section in which data such as actual video or audio is stored, where 'V' means video data and 'A' means audio data. On the other hand, 'D' is a part for the character data and the like, PMT is placed next to this data packet (D). In general, information about a branch may be stored as a data packet to obtain PID information about the data packet through parsing in the UPT field, and information about the branch stored in the data packet corresponding to the PID may be obtained.

On the other hand, the TS packet includes a User Private Table (UPT) field at the front end. Currently, the MPEG-2 system does not use this UPT field and is set only as a reserved field. In the present invention, the PID information for branch broadcasting is stored in the UPT field. That is, PID information of the audio and video packets to be branched and PID information of the data packet including the branch information are stored. For example, in the drawing, the PID 100 of the data packet for the branch and the PID 90, 91 for the video and audio packet to be the branch can be confirmed. Meanwhile, the information about the branch may be stored directly in the UPT field instead of being stored in the data packet.

When the PID information of the branch broadcast stored in the UPT field is parsed and the user selects the branch broadcast based on the data packet or the branch information stored in the UPT field, the selected corresponding audio and video packet is decoded through decoding. By being displayed as an image, a user can watch a corresponding program quarterly.

So far, the TS packet of the MPEG-2 system has been described as an example. However, in the case of other video systems, a packet structure for branch broadcasting can be appropriately formed. On the other hand, in the case of the MPEG-2 system, as described above, by using the UPT field, which is a reserved field, a data structure for branch broadcasting can be implemented while following the standard protocol of the current MPEG-2 system. In the case of other video systems, if a standard protocol is defined, it is preferable to implement a data structure for branch broadcasting within the protocol.

On the other hand, the branch broadcast of the present invention may be only the branch broadcast or other services according to the set bandwidth. In other words, if the number of branches is large, the broadcast per channel may be only branch broadcasting due to the proposal of bandwidth. However, if the number of branches is small and the bandwidth is large, the channel selection of other programs besides the branch broadcasting may be possible.

Hereinafter, the information on the branch broadcast stored in the UPT field will be described.

FIG. 3 is a block diagram illustrating branch information stored in the UPT field of the TS packet of FIG. 2.

Referring to FIG. 3, the UPT field includes respective PID numbers for video and audio packets that are subject to branch broadcasting, and also indicates PID numbers for data packets for information on branches of the corresponding branch broadcasting. Include. That is, the UPT field stores PID information of video and audio packets for each branch, and a PID including a plot or additional information about the branch, that is, a PID of the data packet (in Fig. 2, PID 100,200). Here, information about a program such as an actual plot or a performance time is stored in a data packet corresponding to PID100 or PID 200.

Specifically, if the branch number 0, the PID number of the audio and video packet is 90 and 91, the PID number of the data packet that stores the specific information for the branch 0 is 100. In the subsequent branches 1 and 2, the PID number for the data packet storing the PID number of the corresponding audio and video packet and the branch information is stored in the UPT field. In this way, PIDs for audio and video packets and data packets are stored in the UPT field, and the corresponding PIDs are identified through PMT parsing to determine the number of branches.

In this embodiment, only the PID of the data packet is stored in the UPT field, and the data for the actual branch is configured to refer to the corresponding data packet. However, it is also possible to insert the data for the branch directly into the UPT field. .

Referring to FIG. 1, the branching method will be described in more detail. Since there is no branching when the program is first viewed, there is only one branching number in the UPT field. Thus, video packets and audio packets of PID 90 and 91 can be displayed as branch broadcasting. On the other hand, the data packet corresponding to the PID 100 may store information such as the title or the performance time for the program. Information that can be stored in data packets is discussed in more detail later.

On the other hand, when divided into branch 1 and branch 2, the first branch 0 is not necessary. That is, the broadcast data coming in through the TS packet enters only broadcast data for branch 1 and branch 2. When the branch 1 is selected, the video packets and the audio packets of the PID 120 and 121 are displayed as the branch broadcast, and the information about the corresponding program is stored in the data packet corresponding to the PID 200. On the other hand, when the branch 2 is selected, video packets and audio packets of PIDs 290 and 291 are displayed as branch broadcasts, and information on the corresponding program is stored in the data packet corresponding to the PID 300.

On the other hand, when branch 1 is subdivided into branch 3 and branch 4, broadcast data transmitted as TS packets are branches 2, 3, and 4, and branch 1 is no longer needed. This branch of the broadcast will continue until the end of a particular branch broadcast.

Here, the reason for not transmitting broadcasts for all branches, that is, the previous branch, is because it is impossible to transmit broadcast data for all branches because the bandwidth set in one channel is limited. Accordingly, it is desirable not to transmit broadcast data for branches that are unnecessary.

In the meantime, the UPT field may include information on a previous program together with such PID information. As mentioned above, this is a supplement to not transmitting all branch broadcast data. Of course, the information packet of the previous program may be included in the corresponding data packet during each branch broadcast.

In more detail, in the case of performing the branch broadcast, when the broadcast is first viewed, various cases may occur before or after the branch broadcast and before or after the branch broadcast. Therefore, information according to the situation should be appropriately provided to the viewer.

For example, when a broadcast is first viewed, before a specific program of a branch broadcast starts, information about a program stored in a UPT field or a data packet may include a title and a running time of the corresponding program. In addition, if a specific program of the branch broadcast is already started and is still before the branch, it may include a summary of the contents of the program so far and information on the time played. On the other hand, after the branch, each branch may include a description of the previous quarter, a summary of the contents, and information about the time played.

On the other hand, at the moment of turning on the terminal, the information is displayed only as text, or is displayed as text in the video of the branch broadcasting set as a default, or all of the videos of the branch broadcasting that can be viewed and information corresponding to each video are displayed. Can be displayed together. As described above, information about a program may be directly stored in the UPT field, or only a PID for a data packet may be stored in the UPT field, and information about the program may be stored in the corresponding data packet.

4 is a structural diagram of a transmission apparatus for branch broadcasting according to another embodiment of the present invention.

Referring to FIG. 4, the transmitter according to the present exemplary embodiment includes an external input apparatus 100, an encoding module 200, a mux 300, and a transmitter 400.

The external input device 100 is a device for inputting a video signal or an audio signal for a branch broadcast, that is, a broadcast program, and may be a camera or a microphone. The encoding module 200 encodes and compresses a broadcast program including a video signal or an audio signal, and the MUX 300 multiplexes a plurality of such broadcast programs into TS packets.

The MUX 300 inserts PID information for branch broadcasting into the UPT field for branch broadcasting. That is, the PID of the video and audio packets which are the branch targets and the PID of the data packet which stores information on the branch broadcast are stored as UPT fields. That is, the structure of the TS packet formed through the MUX 300 type is the same as described with reference to FIG. 2. On the other hand, the UPT field may also be stored so that the information on the branch broadcast is stored immediately.

The transmitter 400 converts the TS packet multiplexed through the MUX 300 into an analog signal and transmits the signal at a predetermined frequency.

The transmitting apparatus of this embodiment inserts the PID of the audio and video packet related to the branch and the PID of the information data packet for the branch into the UPT field and transmits the UPT field of such TS packet for the branch broadcast. Parse to obtain information about the branch and select the desired branch broadcast accordingly.

5A is a structural diagram of a receiving apparatus for branch broadcasting according to another embodiment of the present invention.

Referring to FIG. 5A, the receiver of the present embodiment includes a receiver 1100, a signal processing and control module 1200, and a display unit 1300.

The receiver 1100 tunes a broadcast signal for each channel using an RF tuner or the like to receive a TS packet signal including branch broadcast, and the signal processing and control module 1200 displays the received TS packet signal as video and audio. And control each component for such signal processing. The signal processing and control module 1200 will be described in more detail with reference to FIG. 5B.

The display unit 1300 displays video and audio for the corresponding branch broadcast. That is, when the received TS packet is demuxed and parsed by the signal processing and control module 1200, the user obtains information on the branch broadcast and accordingly selects one branch broadcast, the branch broadcast through the decoder. The video and audio data from the video and audio signals are decoded and processed for display before being output to video output devices such as LCD displays and audio output devices of amplifiers.

5B is a structural diagram illustrating the signal processing and control module of FIG. 5A in more detail.

Referring to FIG. 5B, the signal processing and control module 1200 includes a demux 1210, a parser 1220, a decoder 1230, a controller 1240, and a key input unit 125.

The demux 1210 splits the TS packet into packets of the video, audio, data, and information areas. As described above, the TS packet includes a PSI table area and a payload area, a UPT field is included as the PSI table area, and a video packet, an audio packet, and a data packet are included in the payload area. Thus, demux 1210 separates each packet before being multiplexed by the mux.

The parser 1220 parses an information area, that is, a PST table area, among the packets separated through the demux. In this parsing process, the UPT field, which stores information about the branch, is also parsed, and through the UPT parsing, PID information about the video packet and the packet about which the branch is stored can be obtained. Can be. On the other hand, after parsing, the user may select the branch broadcast based on the information on the branch of the data packet.

When the branch broadcaster is selected by the user, the video and audio packets of the corresponding branch object are decoded through the decoder 1230, properly processed for display, and then output to the display unit 1300. Here, the key input unit 1250 is an external input device for selecting a desired branch broadcast after the user grasps information on the branch broadcast, and may be a button or a touch pad.

The controller 1240 generally controls all the components of the reception apparatus, and controls to branch to the corresponding branch broadcast when the user selects the branch broadcast through the key input unit 1250.

The receiving apparatus of the present embodiment parses the UPT field of the TS packet through the parser, thereby providing the user with information about the branch broadcast, and allowing the user to select and watch the desired branch broadcast based on the information. Of course, the TS packet is a stream packet in which multiple broadcast programs for branch broadcasting are multiplexed. The TS packet stores and transmits PID information for branch broadcasting in the UPT field of the TS packet.

6 is a flowchart illustrating a process of transmitting a branch broadcast according to an embodiment of the present invention.

Referring to FIG. 6, first, a broadcast program produced for each branch to be multiplexed and transmitted to one channel is encoded (S100). Next, it is determined whether the encoding is completed (S120). If not, the encoding is continuously performed (S100). When the encoding is completed, the encoded broadcast program is multiplexed into one channel (S140). That is, each encoded broadcast program is multiplexed as an ST packet. In the multiplexing process, PID information for branch broadcasting is inserted into the UPT field. On the other hand, the information about the program may be stored directly in the UPT field, but as described above, only the PID for the data packet may be stored and the information may be stored as the data packet. When the multiplexing is completed, the analog signal is converted into an analog signal for transmission as a broadcast signal (160), and the analog signal 160 is transmitted at a frequency to be transmitted, thereby starting a substantial branch broadcast (S180).

7 is a flowchart illustrating a procedure of receiving a branch broadcast according to an embodiment of the present invention.

Referring to FIG. 7, first, broadcast data is received through a broadcast receiving terminal such as a DMB terminal (S200). Such broadcast data may be branch broadcast or normal broadcast. Accordingly, it is determined whether or not it is branch broadcasting (S220), and in the case of branch broadcasting, the UPT field is parsed to extract branch information (S240). If it is not the branch broadcast, the normal basic broadcast is displayed (S300).

When the UPT field is parsed as the branch broadcast, a corresponding quarterly selection screen is displayed based on the extracted information (S260). In the case of the first display, as described above, information about a program may be displayed only in text or in a manner in which text is displayed together in a default image. Next, it is determined whether or not the branch broadcast ends (S280), and if the branch broadcast is not finished, the process returns to the data receiving step to receive continuous branch broadcast data (S200), and when the branch broadcast ends, the basic broadcast is displayed. (S300).

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

1 is a conceptual diagram illustrating branch broadcasting in a DMB terminal according to an embodiment of the present invention.

2 is a structural diagram showing a structure of a TS packet used for branch broadcasting of the present invention.

FIG. 3 is a block diagram illustrating branch information stored in the UPT field of the TS packet of FIG. 2.

4 is a structural diagram of a transmission apparatus for branch broadcasting according to another embodiment of the present invention.

5A is a structural diagram of a receiving apparatus for branch broadcasting according to another embodiment of the present invention.

5B is a structural diagram illustrating the signal processing and control module of FIG. 5A in more detail.

6 is a flowchart illustrating a process of transmitting a branch broadcast according to an embodiment of the present invention.

7 is a flowchart illustrating a procedure of receiving a branch broadcast according to another embodiment of the present invention.

Claims (15)

Encoding a broadcast program produced for each quarter; Multiplexing the encoded broadcast program into a packet stream; Converting the multiplexed packet stream into an analog signal; And Transmitting the analog signal at a predetermined frequency; The information on the branch is included in the UPT field of the Transfer Stream (TS) packet to be transmitted in the multiplexing step, and the data packet for the corresponding branch broadcast program is included in the Program Map Table (PMT) field of the TS packet. By including the information on the user, the user can branch and watch the broadcast program according to the selection, the branched broadcast can be switched to other branch broadcast while watching, The data packet is, Before a specific program of a quarterly broadcast begins, it includes information about the title and running time of the work, If the program is after the start and before the quarter, it contains a summary of the contents of the program so far and information on the time played; If the program is after a branch, each branch includes a description of the previous quarter, a summary of contents, and information on the time played. The method according to claim 1, The branch information includes branch packet information (PID) information for audio and video packets to be branched and PID information for the data packet. delete The method according to claim 1, The TS packet includes a Program Specific Information (PSI) table area and a pay-load area, and the PSI table area includes the UPT, Network Information Table (NIT), Conditional Access Table (CAT), and PAT (Program). Association Table), and the PMT, wherein the PAT includes PID information on the PMT, and the PMT includes information on a video packet, an audio packet, and the data packet corresponding to a corresponding branch broadcast program. The branch broadcast method, characterized in that. Receiving broadcast data at a terminal; Determining whether the broadcast data is data for branch broadcasting; Extracting information on a branch by parsing a UPT field in a TS packet of the broadcast data in case of data for branch broadcasting; Displaying a quarterly selection screen based on parsed branch information; And Determining an end of the branch broadcast; PID information and data for the audio and video packets to be branched in the UPT field of the TS packet so that a user can branch and watch a broadcast program according to a selection, and switch the branched broadcast to another branch broadcast while watching. PID information about the packet is included, and the information about the data packet is included in the PMT field of the TS packet. The data packet is, If a specific program of the branch broadcast is started, the title of the work for the program and information about the running time, If the program is after the start and before the quarter, it contains a summary of the contents of the program so far and information on the time played; If the program is after a quarter, each quarter contains a description of the previous quarter, a summary of the contents, and information about the time played; The displaying may include displaying information on the corresponding program according to an on time of the terminal. 6. The method of claim 5, In the UPT field parsing step, Parsing PID information of the audio and video packet and a PID information of the data packet as a branch target; And if a user selects a branch target according to information on a program included in the data packet, decoding the audio and video packet selected in the display step and displaying the selected video as the selection screen. delete 6. The method of claim 5, Displaying information on the corresponding program according to the on time of the terminal, Display information about the program as text only on the terminal at the on time of the terminal, and display information about the program as text on the video for the branch broadcast set as a default at the on time of the terminal. Displaying all of the images of the branch broadcasting that can be watched at the on time of the terminal and displaying the information about the program corresponding to each image as a text in any one mode. A branch broadcast reception method characterized by the above-mentioned. 6. The method of claim 5, The UPT field includes information about a program according to the reception of the branch broadcast. In the UPT field parsing step, Parse PID information about the audio and video packet and the information about the program that is a branch target, And if the user selects a branch target according to the information about the program, decoding the audio and video packets selected in the display step and displaying them as the selection screen. An external input device for inputting a broadcast program for branch broadcasting; An encoding module for encoding the broadcast program; A mux for multiplexing the encoded broadcast program into a packet stream; And And a transmitter for converting the multiplexed packet stream into an analog signal and transmitting the signal at a predetermined frequency. The mux includes information about the branch in the UPT field of the TS packet to be transmitted, and includes information about the data packet in the PMT field of the TS packet, so that the user can branch and watch the broadcast program according to a selection. You can switch to another branch broadcast while watching a branched broadcast, The data packet is, If a specific program of the branch broadcast is started, the title of the work for the program and information about the running time, If the program is after the start and before the quarter, it contains a summary of the contents of the program so far and information about the time played; And if the program is after a branch, each branch includes a description of the previous quarter, a summary of the contents, and information on the time played. The method of claim 10, The TS packet includes a PSI table area and a pay-load area. The mux includes the PID information for the audio and video packet and the data packet to be branched in the UPT field of the PSI table area, or the PID information and the branch broadcast for the audio and video packet to be branched. And transmitting information on the program according to the reception. A receiving unit for receiving a TS packet signal including branch broadcasting; A signal processing and control module which processes the received TS packet signal so as to be displayed in video and audio and controls the signal processing; And And a display unit configured to display video and audio for the corresponding branch broadcast according to the signal processing and control module. By including the information on the branch in the UPT field of the TS packet, and the information on the data packet in the PMT field of the TS packet, the user can branch and watch the broadcast program according to the selection, While watching, you can switch to another branch to watch. The data packet is, If a specific program of the branch broadcast is started, the title of the work for the program and information about the running time, If the program is after the start and before the quarter, it contains a summary of the contents of the program so far and information about the time played; If the program is after a quarter, each quarter contains a description of the previous quarter, a summary of the contents, and information about the time played; And receiving the branch broadcast selectively by the signal processing and control module based on the information on the branch broadcast obtained through parsing the TS packet. 13. The method of claim 12, The signal processing and control module, A demux for separating the TS packet into packets of video, audio, data, and information areas; A parser for parsing an information area among the packets separated through the demux; A decoder for decoding the video and audio packets; A controller controlling components of the receiving device; And And a key input unit which is transmitted to the controller to branch to a corresponding branch broadcast when a user performs an input based on the information of the parsing unit. 13. The method of claim 12, The TS packet includes a UPT field in a PSI table area. The UPT field includes PID information on audio and video packets and a PID information on the data packet, which are branch targets, or And PID information on audio and video packets targeted for a branch and information on a program according to the reception of the branch broadcast. delete

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