KR100745252B1 - Selecting receive method of program in the digital broadcasting system - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for selectively receiving an additional program in a digital broadcast system, in particular, providing a broadcast program related to a specific regular broadcast between regular broadcasts and allowing a viewer to select and watch the broadcast program.

A program selection receiving method in a digital broadcasting system according to the present invention comprises: a digital broadcasting receiver for receiving, decoding and playing a transport packet stream, the method comprising: decoding and playing a received first transport packet stream; Checking whether there is a second transport packet stream associated with the first packet transport stream from the received additional service information; Providing a viewer to select whether to output a second transport packet stream if the second transport packet stream exists; And decoding and reproducing the second transport packet stream when an output of the second transport packet stream is selected.

Digital TV, plot service

Description

Selecting receive method of program in the digital broadcasting system

1 is a block diagram of a conventional digital broadcast receiver.

2 is a block diagram illustrating a program selection receiving apparatus in a digital broadcast receiver according to an exemplary embodiment of the present invention.

3 is a block diagram of a broadcast stream provided with a selection program according to the present invention.

4 is a flowchart illustrating a program selection receiving method in a digital broadcasting receiver according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100 ... receiver 110 ... system demultiplexer

121 ... Audio Decoder 122 ... Video Decoder

123 ... data decoder 124 ... modem

125.User Interface Controls

126 Display Controls

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for selectively receiving an additional program in a digital broadcast system, in particular, providing a broadcast program related to a specific regular broadcast between regular broadcasts and allowing a viewer to select and watch the broadcast program.

The digital broadcast receiver receives the bitstream of the digital broadcast program transmitted by the ATSC method. Here, the program means any packetized data type. However, additional service data is additionally included in the bit stream of the digital broadcast program. The supplementary service data information includes data used to identify and combine packets containing the selected program, and also includes program guide and text information related to the transmitted program data.

In addition, since the channel number in the digital broadcast means a program number, the channel in the digital TV broadcast means one program, that is, an audio / video stream or an additional data service stream. It keeps changing.

1 is a block diagram of a conventional digital broadcast receiver, which includes a tuner 1 for receiving a broadcast signal and tuning and detecting a channel desired by a user; A demodulator (2) for demodulating the output signal of the tuner (1) and outputting a transport stream; A / V (Audio / Video) Packetized Elementary Stream (PES) and PSI (Program Specific Information) are extracted by extracting only one stream from the transport stream of the demodulator 20 and demultiplexing the extracted stream. A demultiplexer 3 for outputting information; An A / V decoder (4) for decoding audio and video signals at the A / V PES of the demultiplexer (3) and outputting them to an audio / video output device (not shown); PAT / PMT / VCT decoder that decodes PSI information of the demultiplexer 3 into a Program Association Table (PAT), a Program Map Table (PMT) and a Virtual Channel Table (VCT). The operation of the conventional apparatus configured as described above (5) will be described.

Referring to FIG. 1, the received broadcast signal is tuned and detected by the tuner 1 according to a user's selection, and then demodulated by the demodulator 2 and output as a transport stream (eg, MPEG-2 standard).

At this time, the demultiplexer 3, which serves as demultiplexing, is an audio / video (A / V) packeted elementary stream (PES) and PSIP that is additional service data from the MPEG-2 standard transport stream of the demodulator 2. Separate Program and System Information Protocol (PSI) table or Program Specific Information (PSI) table information, and then the A / V decoder 4 decodes the audio / video (A / V) packet stream (PES) Output as signal and video signal.

Then, an image is displayed on the screen of the image display device (not shown), and an audio corresponding to the image is output through the audio display device (not shown).

The PAT / PMT / VCT decoder 5 decodes the PSI table or PSIP table information of the demultiplexer 3 into a program related table (PAT), a program map table (PMT), and a virtual channel table (VCT). Output to a processing device (not shown) to provide general information about the program.

On the other hand, when a user inputs a key for changing a broadcasting channel, the tuning frequency of the tuner 1 is controlled by a central processing unit (not shown) to perform tuning, and the central processing unit (not shown) is PAT / PMT. The program related table PAT output from the / VCT decoder 5 is searched to determine the total number of channels according to the user's selection, the program number being viewed on the air, and the like.

That is, the central processing unit (not shown) searches for a program map table (PMT) corresponding to a broadcast program desired by a user, and recognizes a PID (Packet ID) corresponding to an audio and video packet stream (A / V PES). Accordingly, the demultiplexer 3 is controlled to extract the corresponding packet stream and output the same to the A / V decoder 4, thereby displaying the broadcast program selected by the user.

The viewer decodes the A / V packet stream sent from the transmitter to watch the broadcast. These audio and video packet streams include regular broadcasts and commercial broadcasts.

However, viewers who watch dramas during regular broadcasts should grasp the contents of consecutive dramas broadcasted each time they watch each drama, and viewers who do not watch previous dramas are inconvenient to understand the contents of dramas to watch in the future. Follow. In order to eliminate such inconvenience, viewers watch rebroadcasts organized on weekends, or spend extra time to watch for a fee through the Internet.

A first object of the present invention is to provide a digital program for transmitting a broadcast program associated with the first packet stream to a second packet stream before the first packet stream to be watched, and to allow a viewer to watch the second packet stream before viewing the first packet stream. A method of receiving a program selection in a broadcasting system is provided.

A second object of the present invention is to provide a program selection reception method in a digital broadcasting system that enables a viewer to select and provide a first packet stream to be viewed through a second packet stream in a commercial time zone.

The third object of the present invention is to provide the same contents as the previous contents of the first packet stream and / or the same contents as the first packet stream before the first packet stream to be viewed, so that viewers who cannot watch in time can select and watch the program. A method of receiving a program selection in a digital broadcasting system is provided.

A fourth object of the present invention is to provide a program selection reception method in a digital broadcasting system in which only a desired viewer can watch by providing a plot service of a broadcast to be watched for a commercial time.

A fifth object of the present invention is the first and second broadcast programs sequentially broadcast through the first virtual channel of one physical channel, and the first through the second virtual channel in the time zone between the first and second broadcast programs. Another object of the present invention is to provide a method for receiving a program selection in a digital broadcasting system that allows a third broadcast program related to a second broadcast program to be selected and reproduced.

Program selection receiving method in a digital broadcasting system according to the present invention for achieving the above object,

A digital broadcast receiver for receiving, decoding and playing a transport packet stream,

Decoding and playing the received first transport packet stream;

Checking whether there is a second transport packet stream associated with the first packet transport stream from the received additional service information;

Providing a viewer to select whether to output a second transport packet stream if the second transport packet stream exists;

And decoding and reproducing the second transport packet stream when an output of the second transport packet stream is selected.

Preferably, in the present invention, the first transport packet stream includes a plurality of regular broadcast programs, and the second transport packet stream includes a plot service associated with each regular broadcast program carried in the first transport packet stream, respectively. It features.

Preferably, in the present invention, the specific regular broadcast program included in the first transport packet stream and the plot service program of the specific regular broadcast program included in the second transport packet stream are broadcast in adjacent time zones.

Preferably, in the present invention, the plot service program is reproduced for a predetermined time to start and end a broadcast before the broadcast of the regular broadcast program.

Preferably, in the present invention, the plot service program is reproduced for a predetermined time to start and end a broadcast after the broadcast of the regular broadcast program.

Preferably, in the present invention, the plot service program is a summarized program for the number of broadcasts selected by a user among specific regular broadcast programs of the first transport packet stream.

Preferably, when the second transport packet stream is selected for broadcast reproduction associated with the first transport packet stream, the method may further include charging a fee for viewing the second transport packet stream through a wired or wireless communication means. It features.

Preferably, when the reproduction of the second transport packet stream associated with the first transport packet stream is terminated, the first transport packet stream is reproduced.

Preferably, in the present invention, after the reproduction of the second transport packet stream is finished, the reproduction start of the first transport packet stream is automatically performed.

Preferably, in the present invention, the additional service information includes a start time and an end time of a second transport packet stream.

Program selection receiving method of a digital broadcasting system according to another embodiment of the present invention,

A third broadcast associated with the first or second broadcast program in a time zone between a first and second broadcast program in a first virtual channel of one physical channel to be transmitted and a first and second broadcast program in a second virtual channel. Transmitting a program;

Reproducing through reception and decoding of the transmitted first broadcast program, and requesting viewing of the third broadcast program when the reproduction of the first broadcast program to be reproduced is finished;

If the viewing of the third broadcast program is selected, the method includes decoding and playing the third broadcast program.

Preferably, the third broadcast program is a plot service corresponding to the first broadcast program.

Preferably, in the present invention, the third broadcast program is a plot service corresponding to the previous broadcast of the second broadcast program.

Preferably, in the present invention, the third broadcast program is characterized in that start and end times are determined by additional service data demultiplexed from a program received from a physical channel.

Program selection receiving method in a digital broadcasting system according to another embodiment of the present invention,

A digital broadcast receiver for sequentially decoding and playing received first and second broadcast programs,

Checking the presence or absence of a third broadcast program related to a first or second broadcast program between the first and second broadcast programs;

If the third broadcast program exists, confirming whether or not to select the third broadcast program when the playback of the first broadcast program ends;

Decoding and playing the broadcast program when selecting to play the third broadcast program;

And reproducing the second broadcast program when the reproduction of the third broadcast program is terminated.

Hereinafter, with reference to the accompanying drawings as follows. 1 is a block diagram showing a program selection receiving method of a digital broadcasting system according to the present invention.

1, a tuner unit 100 for receiving a broadcast signal and selecting and detecting a channel desired by a user; A demodulator 101 for demodulating the output signal of the tuner unit 100 and a system demultiplexer 110 for demultiplexing the transport stream packet demodulated by the demodulator 101 into audio, video and additional service data and outputting the demultiplexer 110. )Wow; An audio decoder (121) for decoding and outputting the demultiplexed audio data; A video decoder 123 for decoding and outputting the demultiplexed video data; A data decoder 123 for decoding and outputting the demultiplexed additional service data; A modem 124 for performing charging for viewing of additional broadcasting; A user interface controller (125) for detecting whether a supplementary service program related to a regular broadcast program exists from the supplementary service data decoded by the data decoder (123) and notifying a user; And a display control unit 126 for notifying the viewer of whether to watch the additional broadcasting service through the on-screen display (OSD).

A program selection reception method in a digital broadcasting system according to the present invention will be described with reference to the accompanying drawings.

Referring to FIG. 1, the tuner 100 tunes and detects a digital broadcast channel signal desired by a viewer through a terrestrial wave, a cable, a satellite, a network, or the like. In other words, the channel is tuned and detected.

The demodulator 101 demodulates the broadcast channel signal tuned by the tuner 100. This demodulator 101 includes a 64 or 256 vestigial sideband demodulator or / and a 64/254 quadrature amplitude modulation (QAM) demodulator for cable reception.

The system demultiplexer 110 demultiplexes audio, video and supplementary service data (including data broadcast, PSIP or PSI tables) from the incoming transport packet stream. At this time, the data decoder 123 outputs the A / V PID list after decoding the demultiplexed additional service data. When the A / V PID of the virtual channel (VCH) is set, the demultiplexer 110 demultiplexes A / V PES (Packed Elementary Stream) and outputs the demultiplexer to the audio and video decoders 121 and 122.

The audio decoder 121 decodes the audio PES and outputs it through a speaker. The video decoder 122 decodes the video PES and outputs the decoded video.

Here, the additional service data includes not only a program related table but also data for broadcasting other data to the viewer. Accordingly, the data decoder 123 decodes (or parses) data for data broadcasting and transmits the data to the user interface controller 125.

The UI controller 125 outputs through the display controller 126 to notify the viewer whether the additional service is viewed, thereby notifying the viewer of the additional service through a screen (ie, an OSD). In this case, whether to watch the plot service is selected. If the viewing is selected, the additional service content is broadcast in a limited time, or the broadcasting of the selected channel continues.

Here, as shown in FIG. 2, the first A / V PES 10 (hereinafter referred to as a transport packet stream) 10 is a previous program, an advertisement time, and a subsequent program (eg, a drama, etc.) based on the times T1 and T2. In order. The data broadcast of the additional service data includes information indicating that there is a current plot service, which is transmitted to the end point T1 of the previous broadcast program. When the data broadcast, which is the additional service data, is decoded, the data broadcast is transmitted to the user interface controller 125, thereby providing the viewer with information that the plot service exists at the time T1 when the previous program ends.

To this end, a broadcasting station transmits a first transport packet stream 10 to a first virtual channel of one physical channel, and transmits a second transport packet stream 30 for a plot service to a second virtual channel, which is another channel. . In addition, the additional service data is included in the additional service data 20 of the physical channel program and transmitted.

Here, the plot service is a program in which the previous program is broadcast between the end time T1 and the start T2 of the next program, and is transmitted to the second transmission packet stream (A / V PES) 30. This second transport packet stream 30 is broadcast in the advertising window T1-T2 between two particular programs of regular broadcast. The first and second transport packet streams 10 and 30 are broadcasted through different virtual channels and broadcasted in different adjacent time zones.

A second transport packet stream (A / V PES) 30 is broadcast between a previous program or a subsequent program of the first transport packet stream 10, and is a plot service associated with the previous or subsequent program. Here, the story service may be a summary broadcast of a previous program or summary information of a next program of a previous number of times of the previous program when the story service of the previous program. Alternatively, the story service may be summary information of a broadcast program of a previous number of subsequent programs in case of a story service of a later program.

In addition, by providing a plot service to viewers by broadcasting a third broadcast program associated with the first or second broadcast program through a second virtual channel between the first and second broadcast programs broadcast through the first virtual channel. have. The first and second broadcast programs may be selected and viewed as an option so that broadcasts in which the broadcasts of the third and third broadcast programs are automatically changed may be received.

The user interface controller 125 notifies the viewer to select whether to watch the plot service, and then receives the input of a user interface such as a remote controller from the viewer to check whether the plot service is viewed, and then the data decoder ( 123).

In this case, if the viewer does not select to view the plot service, the advertisement broadcast existing between the first and second programs proceeds as before, and when viewing the plot service, the user interface controller 125 transmits the data to the data decoder 123. do.

If the data decoder 123 is selected to watch the plot, the data decoder 123 charges a certain fee through the modem 124 which is a wired or wireless communication means mounted inside / outside the receiver. Here, the wired modem may be connected through a PSTN (for example, 060 service), and the wireless modem may be charged after authentication using a wireless modem embedded in the viewer's mobile terminal (mobile phone, PAD, etc.). .

When the charge is completed as described above, the data decoder 123 controls the system demultiplexer 123 not to output the commercial in the advertisement time zone of the program, and simultaneously outputs the second transmission packet stream, thereby demultiplexing the second transmission. The packet stream is output to the audio and video decoders 121 and 122 for reproduction. Accordingly, the plot service related to the first transport packet stream may be performed. That is, when a specific broadcast program of the first transport packet stream is a drama, the before / after plot service for the drama is provided through the second transport packet stream.

That is, the data decoder 123 searches the channel information related tables (VCH, PMT, PAT) corresponding to the additional service broadcast program selected by the viewer, recognizes the PID corresponding to the second transport packet stream, and accordingly the system demultiplexer ( By controlling 110, the corresponding A / V PES is extracted and output to the A / V decoders 121 and 122, thereby reproducing the additional service program.

In addition, since the regular broadcast of the first transport packet stream starts at the end of the second transport packet stream, which is the end of the advertisement time, the viewer transmits that the regular broadcast starts through the data broadcast. The data broadcast indicating the end of the plot service is decoded through the data decoder 123 and provided to the viewer.

When the data decoder 123 transmits the termination of the plot service to the system demultiplexer 110, the system demultiplexer 110 demultiplexes the first transport packet stream (A / V PES) to the audio and video decoders 121 and 122. Will print. Accordingly, the normal broadcast program, that is, enters the broadcast state before the plot service.

4 is a flowchart illustrating a program selection receiving method in a digital broadcasting system according to an exemplary embodiment of the present invention.

Referring to FIG. 4, when the TV power is turned on (S100), the first transmission packet stream for the tuned channel is output (S101). In this case, after confirming whether the plot service exists through the additional service data (S103), and if the plot service exists, it is displayed on the screen (i.e., OSD) along with the plot service existence state (S105).

In this case, when the viewer selects to watch the plot, charging is performed through a wired or wireless communication modem (S107). In this case, the fee may be charged differently according to the viewer, and the service option may be settled on a monthly basis.

When the charging step ends, the second transmission packet stream is output to provide a plot service to the viewer (S111).

Thereafter, after checking whether or not the end of the plot service is finished (S113), when the plot service is terminated, the process proceeds to step S101 to output the first transmission packet stream, thereby continuing to watch the previous broadcast channel. This provides the viewer with a regular broadcast program related to the plot service.

The channel change from the first transport packet stream to the plot service and the change of the channel (VCH) from the first transport packet stream with the termination of the plot service depend on additional service data included in the data broadcast.

So far, the present invention has been described with reference to the preferred embodiments, and those skilled in the art to which the present invention pertains to the detailed description of the present invention and other forms of embodiments within the essential technical scope of the present invention. Could be implemented. Here, the essential technical scope of the present invention is shown in the claims, and all differences within the equivalent range will be construed as being included in the present invention.

According to the method of receiving a program selection in the digital broadcasting system according to the present invention, it is possible to provide an additional broadcast service by providing an additional program service related to the regular broadcast program being viewed through another channel. .

According to the present invention, an additional program service related to a regular broadcast program is broadcasted in an adjacent time zone, thereby improving viewer ratings of the regular broadcast program.

The present invention has the effect that the viewer can selectively watch commercials or additional program services of the regular broadcast program.

The present invention has an effect that can be stably operated through the operation of advertising or billing additional program services in terms of broadcasting stations.

Claims (20)

A digital broadcast receiver for receiving, decoding and playing a transport packet stream, Decoding and playing the received first transport packet stream; Checking whether there is a second transport packet stream including plot information of reproduced information of the first packet transport stream from the received additional service information; Providing a viewer to select whether to output a second transport packet stream if the second transport packet stream exists; And if the output of the second transport packet stream is selected, decoding and playing the second transport packet stream. delete The method of claim 1, Selecting a program in the digital broadcasting system, characterized in that the plot service program of the specific regular broadcast program carried in the first transport packet stream and the specific regular broadcast program carried in the second transport packet stream are broadcasted in adjacent time zones. Receiving method. The method of claim 3, wherein The plot service program is a selective reception method of a program in a digital broadcasting system, characterized in that played for a predetermined time for the start and end of the broadcast before the broadcast of the regular broadcast program. The method of claim 3, wherein The plot service program is a method of selectively receiving a program in a digital broadcasting system, characterized in that played for a predetermined time for the start and end of the broadcast after the broadcast of the regular broadcast program. The method according to claim 4 or 5, The play time of the plot service program has a play time equal to the pre-broadcasting advertisement time zone of the specific regular broadcast program. The method according to claim 4 or 5, And the plot service program is a summarized program for a previous broadcast of a specific regular broadcast program of a first transport packet stream.  The method according to claim 4 or 5, And the plot service program is a summarized program corresponding to a specific regular broadcast program of the first transport packet stream. The method of claim 3, wherein And the plot service program is a summarized program for the number of broadcasts selected by a user among specific regular broadcast programs of the first transport packet stream. The method of claim 1, If the second transport packet stream is selected for broadcast reproduction associated with the first transport packet stream, further comprising charging a fee for viewing the second transport packet stream through a wired or wireless communication means; Selective reception method of a program in a digital broadcasting system. The method of claim 1, And when the reproduction of the second transmission packet stream associated with the first transmission packet stream ends, the first transmission packet stream is reproduced. The method of claim 11, And starting playback of the first transport packet stream automatically after completion of the playback of the second transport packet stream. The method of claim 1, And the additional service information includes a start time and an end time of a second transport packet stream. In a digital broadcasting system, A third broadcast program including first and second broadcast programs in one physical channel to be transmitted and plot information of the first or second broadcast programs in a time zone between the first and second broadcast programs in a second virtual channel; Transmitting; Reproducing through reception and decoding of the transmitted first broadcast program, and requesting viewing of the third broadcast program when the reproduction of the first broadcast program to be reproduced is finished; And if the third broadcast program is selected for viewing, decoding and playing the third broadcast program. delete delete The method of claim 14, And the start and end time of the third broadcast program is determined by additional service data demultiplexed from a program received from a physical channel. A digital broadcast receiver for sequentially decoding and playing received first and second broadcast programs, Checking the presence or absence of a third broadcast program including plot information of a first or second broadcast program between the first and second broadcast programs; If the third broadcast program exists, confirming whether or not to select the third broadcast program when the playback of the first broadcast program ends; Decoding and playing the broadcast program when selecting to play the third broadcast program; And reproducing the second broadcast program when the reproduction of the third broadcast program is terminated. The method of claim 18, And the third broadcast program is broadcast in a time zone other than the regular broadcast time allocated between the first and second broadcast programs. The method of claim 18, And the third broadcast program is included in a virtual channel different from the first and second broadcast programs.

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