KR100713783B1 - A transport stream transmission system which can compose the time and designate the position of a digital television programming and the method thereof - Google Patents

Abstract

The present invention relates to a transport stream transmission system and method capable of time coordination and positioning of a digital television program. A transport stream transmission system capable of time coordination and positioning of a digital television program according to one aspect of the present invention stores information on one or more transport stream file information organized by a user and information on a transport stream file to be transmitted A program information management unit for managing the programs; A control unit which receives the program organizing information and controls transmission of a transport stream file according to a reading time and a reproduction position of the transport stream file; A file reading unit for receiving the control signal from the control unit and reading the transport stream file stored in the programming information management unit and reading the transport stream file to be read in accordance with the broadcasting transmission rate; And a broadcasting equipment interworking unit for controlling the communication protocol between the broadcasting equipment and transmitting the transport stream file read from the file reading unit to the broadcasting equipment.

The present invention can provide a system having a broadcasting function scheduled by a single broadcasting transmission system and can apply both a time programming setting and a programming process for transmitting one or more broadcasting programs to a single broadcasting system .

A transport stream, a digital broadcast, a program,

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport stream transmission system and a method thereof, which can time-align and position a digital television program. 2. Description of the Related Art [0002]

1 is a block diagram showing a digital television broadcasting system to which a transport stream transmission system according to an embodiment of the present invention is applied.

2 is a block diagram showing the A / V stream generating unit of FIG. 1 in more detail.

3 is a flowchart showing a transport stream delivery method according to an embodiment of the present invention.

The present invention relates to a digital television broadcasting, and more particularly, to a transport stream transmission system and method capable of setting a time schedule for transmission of one or more programs of a digital television broadcasting station using one system and reproducing and transmitting a stream at a specific location .

The concept of analog in the signal system has changed into the concept of digital, which has made a big difference in how to use information. In general, the transmission of a television broadcast program using a conventional analog system is carried out through analog equipment from an analog information storage medium such as a tape. In the case of digital television, since most of the broadcasting process is digitalized, the field of application of the computer system is expanded compared to the analog system. In digital broadcasting, the audio and video contents of a broadcast are stored in a file format of a general computer, and a stored file is read and reproduced and transmitted through a broadcast transmission equipment. This means that the opportunity for computers to be used as broadcasting equipment increases compared to conventional analog broadcasting.

However, the conventional digital broadcasting equipment is applied to the concept of programming, and a transport stream (a method of multiplexing a plurality of programs in an erroneous channel environment in an MPEG 2 system, hereinafter referred to as a TS) There is a problem in that it is merely a function of transmitting a designated TS and that it is only possible to transmit the digital broadcasting by using an expensive broadcasting transmission device.

In addition, a conventional digital broadcast transmission apparatus includes an ASI (Adapter Support Interface: a protocol stack used in a network architecture environment), a Society of Motion Picture Television Engineers 310 (SMPTE 310: a technique for processing and storing still image or moving picture data, A technique of removing an unnecessary portion or synchronizing a redundant portion with a single signal) is not supported at the same time by various means of broadcasting transmission.

In order to solve such problems, it is an object of the present invention to provide a system having a broadcast function that is scheduled by a combination using a single broadcast transmission system.

It is another object of the present invention to provide a system in which both a time programming setting and a programming process for broadcasting one or more broadcasting programs can be applied to a single broadcasting system.

It is also possible to designate a specific position in a specific transport stream file so that a transport stream file can be reproduced from a designated position and a transport stream file can be reproduced and transmitted from a specific position without any other editing of the transport stream file There is another purpose in doing so.

According to an aspect of the present invention, there is provided a transport stream transmission system capable of time-aligning and positioning a digital television program,

A transport stream transmission system for transmitting digital broadcast data to one or more user receivers,

A program information manager for storing and managing information on one or more transport stream file information organized by a user and information on the transport stream file to be transmitted;

A control unit for receiving program organizing information according to the intention of the user and controlling transmission of the transport stream file according to a reading time and a reproduction position of the transport stream file;

A file reading unit that receives a control signal from the control unit and reads a transport stream file to be read and a reading time of the transport stream file stored in the programming information management unit in accordance with a broadcast transmission rate; And

A broadcasting apparatus interworking section for controlling the communication protocols among the broadcasting apparatuses and transmitting the transport stream file read from the file reading section to the broadcasting equipment;

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According to another aspect of the present invention, there is provided a transport stream delivery method capable of time-aligning and positioning a digital television program,

A transport stream transmission method using a transport stream transmission system for transmitting digital broadcast data to one or more user receivers,

Receiving one or more program organizing request information through a user interface and storing the program organizing information of the user in an information table;

Reading a transport stream file for playing back a specific transport stream file or a transport stream file from a specific location;

And transmitting the read transport stream file to a broadcasting apparatus connected to the broadcasting apparatus in accordance with a programming time                     

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

1 is a block diagram showing a digital television broadcasting system to which a transport stream transmission system according to an embodiment of the present invention is applied.

1, a digital television broadcasting system to which a transport stream transmission system according to an embodiment of the present invention is applied includes an audio / video stream generation unit 100 for generating audio and video data to be transmitted from a broadcast; A multiplexer (MUX) 200 for receiving and multiplexing audio and video data generated by the one or more audio / video stream generators 100; A PSIP generation unit 300 for generating a Program and System Information Protocol (PSIP) table based on an ATSC (Advanced Television Systems Committee) scheme; An additional data providing unit 400 for processing and providing supplementary information necessary for digital television broadcasting; A remultiplexer 500 (hereinafter referred to as a REMUX) for multiplexing audio and video data multiplexed from one or more MUXs 200 and data received from the PSIP generator 300 and the additional data provider 400, ; A modulator 600 for modulating the remultiplexed audio and video data received from the REMUX 500 into data suitable for transmission; And a transmission unit 700 for transmitting broadcast data so that a user can watch audio and video data through a television.

FIG. 2 is a block diagram showing the A / V stream generating unit of FIG. 1 in more detail.

As shown in FIG. 2, the A / V stream generating unit 100 generates a specific TS file from a user responsible for organizing one or more programs over time for digital television broadcasting, information for playing TS files from a specific location A user interface 110 for receiving data and converting the data; A main controller 120 receiving program scheduling information according to the user's intention from the user interface 110 and controlling transmission timing of the TS file and the reproduction position and transmission of the TS file; A program information managing unit 130 for storing and managing information on one or more TS file information organized by a user and TS file to be transmitted; A TS file reading unit 140 for reading a TS file storing contents of a transport stream (TS) from the main control unit 120 and reading a file to be read according to a broadcasting transmission rate; And a broadcasting apparatus interworking unit 150 for controlling the ASI or SMPTE 310 system, which is a communication protocol between broadcasting apparatuses, and transmitting the TS file read from the TS file reading unit 140 to broadcasting equipment.

The user interface 110 may be a computer that performs broadcast programming or a broadcast device that is required for broadcast transmission, and the present invention is not limited to the embodiments.

The program information management unit 130 includes an information table 131 for storing one or more pieces of broadcast data, and the information table 131 includes a program schedule time table 131-1 for storing program schedule time data required for broadcast transmission; A TS file table 131-2 storing information on a TS file to be included in one or more programs and to be transmitted; A read position table 131-3 for storing information on which position the TS file should be read to perform playback from a specific position; And a transmission rate table 131-4 for storing broadcasting transmission / transmission rate information of a TS file that is suitable for broadcasting transmission.

The configuration information management unit 130 may be a database server that stores information and provides request information at the time of calling information, and the information table 131 may be a database containing each information as a single database, And the present invention is not limited to the embodiments.

The TS file reading unit 140 includes a buffer monitoring module 141 for generating information on a free space of the output data buffer 151 so that contents of a transport stream (TS) can be delivered to the broadcasting equipment without interruption of transmission data; And a file reader 142 for reading the TS file to be added to the program in accordance with the information indicating that the free space has been created by the buffer monitoring module 141.

The broadcasting apparatus interlocking unit 150 includes an output data buffer 151 for storing audio and video data including a TS file to be transmitted to a user television; And a device driver interworking module 152 that performs transmission and control functions for the ASI or SMPTE 310 system, which is an interface with the broadcasting equipment, and buffers the audio and video data to be transmitted.

Hereinafter, the operation of the transport stream delivery system according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a flowchart showing a transport stream delivery method according to an embodiment of the present invention.

A user inputs broadcast transmission information for playing back a specific TS file or a TS file from a specific location for time-coordination of one or more programs for digital television broadcasting through the user interface 110. [ The main control unit 120 receives the user's request information from the user interface 110 (S100).

The main control unit 120 transmits the program organizing information according to the user's request to the organizing information managing unit 130 and the organizing information managing unit 130 stores the program organizing information of the received user in the information table 131 ). At this time, the programming information management unit 130 stores the TS file to be transmitted, the transmission time of the TS file, the transmission start position of the transmission TS file, and the position information to be read out of the transmission TS file, 1, the TS file table 131-2, the read position table 131-3, and the transmission rate table 131-4.

When the specific program is transmitted according to the program arrangement, the main control unit 120 searches the program schedule information stored in the combination time table 131-1 and checks whether the TS file control according to the specific time and the specific position is necessary (S120 ). At this time, the main control unit 120 controls the file reading time and the corresponding TS file information according to the combination time, information on whether the file needs to be reproduced from a specific position, and the transmission rate information of the TS file.

If it is necessary to control the TS file according to the specific time and specific position, the main control unit 120 calls the TS file reading unit 140 to read the TS file data stored in the TS file table 131-2, The reader 142 reads the TS file according to the combination information from the TS file table 131-2 (S130). The main control unit 120 calls the TS file transmission rate information stored in the transmission rate table 131-4 and provides it to the file reader 142 (S140).

The buffer monitoring module 141 monitors whether the output data buffer 151 has a current free space, and transmits the monitored output data buffer availability information to the main control unit 120 (S150). The main control unit 120 checks whether the available space of the output data buffer 151 is available (S160).

If there is a data storage space that can be transmitted to the broadcasting equipment in the output data buffer 151, the buffer monitoring module 141 informs that the current output data buffer 151 has a margin, The file reader 142 receives the information that the free space is secured from the monitoring module 141 and stores the read TS file in the output data buffer 151 at step S170.

The device driver interlocking module 152 checks the possibility of interworking with broadcasting equipment capable of transmitting audio and video broadcasting data (S180). If interworking with the broadcasting equipment is started, 151 (step S190).

Each broadcasting apparatus transmits audio and video data including a TS file so that a user can receive and view a digital broadcast through a television (S200).

It is to be understood that the present invention is not limited to the above-described embodiment, and that many modifications and variations of the present invention are possible without departing from the gist of the present invention.

INDUSTRIAL APPLICABILITY As described above, the transport stream transmission system and the method capable of time coordination and positioning of the digital television program of the present invention can provide a system having a transmission function scheduled by a combination using a single broadcasting transmission system , And the time schedule setting and programming process for sending one or more broadcast programs can all be applied.

It is also possible to designate a specific position in a specific transport stream file so that a transport stream file can be reproduced from a designated position and a transport stream file can be reproduced and transmitted from a specific position without any other editing of the transport stream file do.

In addition, since a digital television program can be transmitted using a small number of equipment, it is possible to reduce the construction cost of a digital broadcasting system, and in particular, it can be used for a digital broadcasting in a small broadcasting station, The number of equipment can be reduced.

In addition, since the present invention has a broadcasting transmission function and a repeating transmission function in accordance with programming information, it is possible not only to automatically perform a broadcasting service according to programming in digital television broadcasting but also to perform a broadcasting function with a small number of persons.

Claims (9)

A system for transmitting a transport stream file corresponding to digital broadcast data to one or more user receivers, Storing and managing a broadcast time for one or more transport stream files and information on a combination time of the one or more transport stream files, a playback position for the one or more transport stream files, and a broadcast transmission rate for the one or more transport stream files A configuration information management unit for managing the configuration information; And controlling the transmission of the transport stream file in accordance with the combination time of the transport stream file and the reproduction position, and controlling the transmission of the transport stream file according to the combination time of the transport stream file and the reproduction position ; A file reading unit that receives a control signal from the control unit and reads a transport stream file to be read according to the organizing time of the transport stream file stored in the organizing information management unit from the reproduction position in accordance with the broadcast transmission rate, ; And A broadcasting equipment interworking unit for controlling the communication protocols of the broadcasting equipment and transmitting the transport stream file read from the file reading unit to the broadcasting equipment, / RTI > [2] The apparatus of claim 1, An output data buffer for storing audio and video broadcast data including the transport stream file to be transmitted to the user receiver; A device driver interworking module for performing transmission and control of the communication protocol, which is an interface with a broadcasting device, and buffering audio and video broadcasting data to be transmitted; ≪ / RTI > 3. The apparatus according to claim 2, wherein the file reading unit A buffer monitoring module for monitoring the operation of the output data buffer so as to enable continuous transmission of transmission data so that the contents of the transport stream file can be transmitted to the broadcasting equipment, thereby generating information on a free space of the output data buffer; A file reader for reading the transport stream file to be added to the program in accordance with information indicating that free space has been created by the buffer monitoring module; / RTI > The method of claim 3, Further comprising: a user interface for receiving and changing information about the programming time, information about the reproduction position, and information about the broadcasting transmission speed from a user, and for transmitting the converted data to the control unit. 5. The apparatus according to any one of claims 1 to 4, wherein the knitting information management unit A combination time table for storing program organizing time data necessary for broadcasting transmission; A transport stream file table for storing content information about the transport stream file to be included in one or more programs and to be transmitted; A read position table for storing read position information of the transport stream file to reproduce the transport stream file from a specific position; A transmission rate table for storing information on a broadcast transmission rate of the transport stream file for broadcasting transmission; / RTI > A method for transmitting a transport stream file corresponding to digital broadcast data to one or more user receivers, Receiving information on a combination time of the transport stream file and information on a reproduction position of the transport stream file through a user interface and storing the received information in an information table; Reading the transport stream file from the playback position; And transmitting the read transport stream file to the broadcasting equipment connected to the broadcasting time according to the programming time ≪ / RTI > 7. The method of claim 6, wherein the transport stream file reading step Searching the information table to check whether control of a transport stream file according to a specific time and specific location is necessary; Reading the transport stream file stored in the information table from the playback position when the transport stream file is controlled at the specific time and the specific position; Reading transmission rate information of the transport stream file stored in the information table; Monitoring whether the output data buffer has a current free space and checking whether the free space of the output data buffer can be used according to availability of the monitored output data buffer; Storing the transport stream file read into the output data buffer when a data storage space that can be transmitted to the broadcasting equipment occurs in the output data buffer ≪ / RTI > 8. The method of claim 7, Checking the possibility of interworking with the broadcast equipment capable of transmitting audio and video broadcast data; Transmitting the transport stream file stored in the output data buffer to the interworking broadcast equipment when interworking with the broadcast equipment is started; And transmitting the transport stream file so that the broadcast equipment can receive and view the broadcast through the user receiver ≪ / RTI > 8. The method of claim 7, wherein the transport stream file control checking step The information on whether the transport stream file needs to be reproduced from a specific position and the transmission speed information of the transport stream file are checked and controlled based on the file read time information according to the program schedule time, the corresponding transport stream file information, How to.

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