KR101253637B1 - A method of receiving a digital broadcasting signal and an apparaus of receiving a digital broadcasting signal - Google Patents

Abstract

The present invention relates to a broadcast signal related to a dummy event in PSIP, a method of controlling the broadcast signal, and a broadcast receiver for processing the same, in order to solve a problem of the prior art, which is defined as an event only for a main broadcast program in the PSIP. The present invention defines a main broadcast program as an actual event, defines a minor broadcast program not belonging to the main broadcast program as a dummy event, and includes information for distinguishing the actual event from the dummy event. A tuner unit for receiving a broadcast signal of a PSIP, a parsing unit for detecting a broadcast signal of the received PSIP, a decoder for decoding the broadcast signal of the detected PSIP, and a broadcast signal of the decoded PSIP. And a control unit for separating the information about the physical event and the dummy event and controlling each of them individually. Therefore, according to the present invention, the main broadcast program is distinguished from the commercial broadcast and the test broadcast (data broadcast, etc.), thereby improving the convenience of digital broadcast viewing and recording.

PSIP, actual event, dummy event

Description

A method of receiving a digital broadcasting signal and an apparaus of receiving a digital broadcasting signal}

1 is a diagram illustrating an example in which an actual event is generally displayed on an electronic program guide (EPG).

FIG. 2 is a diagram illustrating an example in which a dummy event is displayed on an electronic program guide (EPG) according to the present invention.

3 illustrates an example of a bit stream syntax for an event information table (EIT) according to the present invention.

4 illustrates another example of a bit stream syntax for an event information table (EIT) according to the present invention.

5 is a diagram illustrating an example of a bit assignment method of an "event_type" field of an EIT according to the present invention.

6 illustrates an example of defining a "title_text ()" field of an EIT according to the present invention.

7 is a diagram illustrating an example of defining a "Dummy_event_descriptor" of an EIT according to the present invention.

8 is a diagram illustrating an example of a configuration of a broadcast receiver for receiving and processing an event information table (EIT) according to the present invention (block diagram).

Description of the Related Art

801: Broadcast receiver 802: Tuner part

803: demodulator 804: demultiplexer

805: A / V decoder 806: display unit

807: PSI / PSIP Database 808: PSI / PSIP Decoder

809: channel manager 810: channel map

811: application control unit 812: flash memory

The present invention relates to digital broadcasting, and more particularly, to a broadcast signal related to a dummy event in PSIP, a method for controlling the broadcast signal, and a broadcast receiver for processing the same.

In general, the PSIP (Program and System Information Protocol) is a standard of the Advanced Television System Committee (ATSC) for terrestrial and cable digital broadcasting, and is encoded by a method such as MPEG-2 (ISO / IEC 13818-1 system). The digital TV, etc., may parse it and display various information about the program.

The PSIP consists of various tables for transmitting and receiving MEPG-2 video and A / V data in AC-3 audio format, and transmitting information about channels of each broadcasting station and information about each program on the channel. It is.

A / V service and additional services such as EPG can be provided by using tables such as MGT (Master Guide Table).

In particular, various information has been provided to the user for each of a number of events through the EPG (Electronic Program Guide) service.

However, in the PSIP, the event may also mean a broadcast program unit. For example, when drama 1 exists, movie 2 exists, and news 1 exists, each broadcast program constitutes one event.

The EPG means a program schedule that includes a program and a summary for each channel. The same electronic guidance as the printed television program guide, which is processed using the remote control equipment. Other features include ordering pay-per-view programs, searching for topics or categories, and recording video.

However, the above-mentioned conventional digital broadcasting has the following problems.

Conventionally, since only EPG information has been provided as defined as an event for a main broadcast program, there is a problem in that a broadcast signal other than the main broadcast program cannot be managed separately.

The present invention is to solve the above problems, the object of the present invention is not only a main broadcast program, but also a minor broadcast program (for example, commercial broadcast program, software (S / W) program, data broadcast program, or any Broadcast signal related to a dummy event, a method of controlling the broadcast signal, and the like in a PSIP that can be defined as a separate event even in a state where a broadcast signal is not transmitted, etc.). It is to provide a broadcast receiver for processing.

In order to achieve the above object, the present invention defines a main broadcast program as an actual event in a broadcast signal of Program and System Information Protocol (PSIP), and to the main broadcast program. In the PSIP, a minor broadcast program that does not belong is defined as a dummy event, and includes information identifying the actual event and the dummy event. To provide.

The above information is preferably defined in the EIT.

The information may be defined in an event type (event_type) field newly defined in the EIT or in a dummy event descriptor newly defined in the EIT.

The information may be defined as a text type in a title text (title_Text ()) field of the EIT.

The dummy event is a state in which an advertisement program is transmitted, an A / V signal is not transmitted, only a software (S / W) program is transmitted, and an A / V signal is not transmitted, and only a data broadcasting program is transmitted. Or at least one of a state in which no broadcast signal is transmitted.

In order to achieve the above object, the present invention is a control method of a broadcast receiver capable of receiving digital broadcasting, the main broadcast program is defined as an actual event (main event), the main broadcast program Defining a minor broadcast program not belonging to a dummy event, and receiving a broadcast signal of a PSIP including the actual event and information distinguishing the dummy event, and And separating the information about the actual event and the dummy event by using the received broadcast signal of the PSIP and controlling each of the broadcasts individually. Provided is a control method of a receiver.

Using the broadcast signal of the received PSIP, the step of separating the information about the actual event (actual event) and the dummy event (dummy event) and individually control each, on the EPG (Electronic Program Guide), The method may include displaying information about the dummy event.

By using the broadcast signal of the received PSIP, separating the information about the actual event (actual event) and the dummy event (dummy event) and controlling each individually, a specific actual event (actual event) While recording the video, a part of the dummy event broadcast can be deleted and recorded, or a recording can be controlled to be performed only for a specific dummy event.

The above information is preferably defined in the EIT.

The information may be defined in an event type (event_type) field newly defined in the EIT or in a dummy event descriptor newly defined in the EIT.

The information may be defined as a text type in a title text (title_Text ()) field of the EIT.

The dummy event is a state in which an advertisement program is transmitted, an A / V signal is not transmitted, only a software (S / W) program is transmitted, and an A / V signal is not transmitted, and only a data broadcasting program is transmitted. Or at least one of a state in which no broadcast signal is transmitted.

In order to achieve the above object, the present invention provides a broadcast receiver capable of receiving digital broadcasts, wherein a main broadcast program is defined as an actual event and does not belong to the main broadcast program. A tuner unit for defining a minor broadcast program that is not a dummy event, and receiving a broadcast signal of a PSIP including information identifying the actual event and the dummy event; By using the parsing unit for detecting the broadcast signal of the PSIP, the decoding unit for decoding the detected broadcast signal of the PSIP, and the broadcast signal of the decoded PSIP, the actual event and the dummy event ( It provides a broadcast receiver comprising a control unit for separating the information on the dummy event and control each one separately. .

The controller may control the information on the dummy event to be displayed on an electronic program guide (EPG).

The controller may record a specific actual event while deleting a portion in which a dummy event is broadcast or record a specific dummy event or record only a specific dummy event.

The above information is preferably defined in the EIT.

The information may be defined in an event type (event_type) field newly defined in the EIT or in a dummy event descriptor newly defined in the EIT.

The information may be defined as a text type in a title text (title_Text ()) field of the EIT.

The dummy event is a state in which an advertisement program is transmitted, an A / V signal is not transmitted, only a software (S / W) program is transmitted, and an A / V signal is not transmitted, and only a data broadcasting program is transmitted. Or at least one of a state in which no broadcast signal is transmitted.

In order to achieve the above object, the present invention is defined as a text type in the title text (title_Text ()) field information on the state that the main broadcast program is not transmitted in the broadcast signal of the Program and System Information Protocol (PSIP) It provides an event information table (EIT).

The information on the state in which the main broadcast program is not transmitted includes a state in which an advertisement program is transmitted, a state in which only an S / W program is transmitted without transmitting an A / V signal, and no A / V signal. It is preferable to include at least one or more of a state in which only a data broadcast program is transmitted or a state in which no broadcast signal is transmitted.

Therefore, according to the present invention, a user such as a digital TV (DTV) can display a main broadcast program (drama, news, movie, etc.) and an advertising minor broadcast program (for example, a commercial program, a trial broadcast, a data broadcast, and a S / W). Broadcast related to download, etc.) can be easily distinguished, and according to the user's preferred type, there is a very convenient effect in terms of EPG checking, viewing, recording, and the like.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

However, for a more clear description, the definition of the dummy event according to the present invention and one example of specific use (first embodiment) and the dummy event according to the present invention are referred to as EIT. (Example 2) of a method of defining using an Event Information Table, and another example of a method of defining a dummy event according to the present invention using an event information table (EIT) Third embodiment) ',' another example of a method of defining a dummy event according to the present invention by using an event information table (EIT) '(fourth embodiment), and' the present invention The configuration of a broadcast receiver for receiving and processing an event information table (EIT) will be described by dividing it into one example (a fifth embodiment).

First Embodiment

1 is a diagram illustrating an example in which an actual event is generally displayed on an electronic program guide (EPG).

2 is a diagram illustrating an example in which a dummy event is displayed on an electronic program guide (EPG) according to the present invention.

Hereinafter, referring to FIGS. 1 and 2, a definition of a dummy event and an example of specific use according to the present invention will be described.

FIG. 1 shows information over time of an actual event broadcast in a virtual channel. However, a detailed description of the actual event will be described later.

More specifically, FIG. 1 shows four virtual channels (minor in FIG. 1) in one physical channel (in FIG. 1, the major physical channel number is '51'). The physical channel number is a program schedule guide from 17:00 to 04:00 for a broadcast on '1', '2', '3', and '100'.

The program schedule guide diagram is also referred to as an electronic program guide (EPG).

'1-A', '1-B', ....., '1-E' shown in FIG. 1 mean titles of programs to be broadcast on the '51 -1 'channel.

The remaining '2-A', ....., '3-D' also mean the titles of the programs for the corresponding virtual channel.

As shown in the upper left of Figure 1, the rounded end of the arrow indicates the current time (current time), the information on the current time is received and stored through the STT (System Time Table).

As shown at the top of FIG. 1, the pointed end arrow is a time domain of an event included in one EIT-k of EIT-k (k = 0 to 127).

For example, during 24 hours a day, '0:00', '3:00', '6:00', '9:00', '12: 00 ', '15: 00', '18: 00 ' , '21: 00 ', that is, there are eight absolute times.

As shown in FIG. 1, when the current time is based on '17: 19 ', broadcast channels are '51 -1' and '51 -2 '.

Such a channel is called an active virtual channel, and the channel 51-1 is changed to an inactive channel state since there is no broadcast at 1 hour.

Channel 51-3 is an inactive channel where the main broadcast program '3-A' is scheduled to be broadcasted starting at '19: 00 '.

Meanwhile, the empty space between the '3-A', '3-B', '3-C', and '3-D' main broadcast programs means an advertisement program.

The main broadcast program generally means an A / V broadcast signal transmitted from a broadcast station and a regular broadcast program scheduled by the broadcast station.

For example, the main broadcast program may be drama 1, sports 2, movie 1, news 1, or the like.

Channel '51 -100 'shows the data broadcasting channel without A / V data. In the conventional case, there was no event when there was no A / V data.

Each of '1-A', '1-B',..., '3-D' means a broadcast program, and in particular, it can be regarded as a main broadcast program.

In this way, an event for a main broadcast program that is actually broadcasted will be defined as an actual event.

The actual event is an event included in the EIT of the PSIP, and includes an event title (broadcast title), event start time (event start time), and event duration. It is a general television program unit that can have descriptor information such as (broadcast program duration), other captions, ratings, and the like.

As shown in FIG. 1, there is a part not shown as an actual event in the time domain from '17: 00 'to' 4:00 '.

This part is a time domain in which the main broadcast program is not transmitted. In the present invention, this is defined as a dummy event.

However, the description of the dummy event will be described again with reference to FIG. 2.

A dummy event according to the present invention is a virtual event indicating an empty time region which is not filled with an actual event in a broadcast guide time region such as an EPG based on the current time.

Therefore, in FIG. 2, six dummy events exist up to D1, D2, ..., D6.

In summary, an actual event means a regular broadcast program unit transmitted from a broadcast station, and is defined in the present broadcast unit as a main broadcast program unit.

In addition, a dummy event refers to a program unit that is simply associated with or does not have a relationship with a broadcast. In the present specification, a dummy event is defined as a minor broadcast program unit.

For example, suppose the movie 'The Man of the King' is aired through the MBC weekend movie program, from 10 pm to 11:50 pm on the weekend.

Considering the broadcasting environment of Korea, the actual running time of the movie 'The King of Men' is not exactly the same as 1 hour 50 minutes. That is, commercial programs are attached before and after the start and end of broadcast programs, and in foreign broadcast environments, intermediate commercial programs may be included in the middle of a movie program.

Here, the 'man of king' may be an actual event, and the commercial program may be called a dummy event.

In the above example, although the commercial program is scheduled as a dummy event, three types of events may correspond to the dummy event as follows according to the receiver and the content of the broadcast stream.

In the first embodiment, an inactive event status is regarded as a dummy event.

D1 and D2 shown in FIG. 2 correspond to the first embodiment.

In a second embodiment, an advertisement of the event is considered a dummy event.

D3, D4, and D5 shown in FIG. 2 correspond to the second embodiment.

In a third embodiment, a data broadcasting only or S / W download channel without a specific A / V is transmitted as a dummy event.

D6 shown in FIG. 2 corresponds to the third embodiment.

Thus, by newly defining a dummy event in the PSIP, the following effects can be obtained.

In the case where the inactive event status does not actually broadcast (inactive event status) as a dummy event, it is possible to know when the active event starts.

In addition, it is possible to clearly distinguish whether or not the broadcast is actually being broadcasted, such as no data (no data) that is not sent from the broadcasting station and the status of sending incorrect EPG information from the broadcasting station. It has an effect.

If the advertisement of the broadcast program (advertisement of the event) is regarded as a dummy event, it is possible to easily distinguish between the commercial program and the broadcast program such as drama, news.

On the other hand, in the related art, it is not possible to accurately determine the start time and the end time of a specific broadcast program because it does not define specific information on whether the commercial program is included in a specific event, and the reservation and recording of the viewing and the like are performed through the EPG. There was a problem that was difficult to use.

In addition, when the advertisement of the broadcast program (advertisement of the event) is regarded as a dummy event, there is an effect that can clarify additional services (for example, DTVCC, Rating information, ac3 audio service, etc.).

On the other hand, when a data broadcasting only or S / W download channel for a special purpose without A / V is regarded as a dummy event, an event without A / V signal may be used. There is also an effect that can be clearly displayed on the EPG.

Furthermore, it is possible to effectively solve the backward compatibility problem on the EPG of the deployed DTV (DTV) generated by ACAP data broadcasting and S / W download service.

In the conventional PSIP standard, EIT-0, 1, 2, and 3 are mandatory standards, but EIT-all is optional for an event without an A / V signal. There was a problem that the confusion of the broadcast receiver may occur.

However, embodiments of the method for the division processing in the PSIP for the above-described dummy event will be described later through the second embodiment, the third embodiment, and the fourth embodiment.

- Second Embodiment -

FIG. 3 is a diagram illustrating an example of a bit stream syntax for an event information table (EIT) according to the present invention.

4 is a diagram illustrating another example of a bit stream syntax for an event information table (EIT) according to the present invention.

FIG. 5 is a diagram illustrating an example of a bit assignment method of an "event_type" field of an EIT according to the present invention.

Hereinafter, an example of a method of defining a dummy event according to the present invention using an event information table (EIT) will be described with reference to FIGS. 3 to 5.

The event information table (EIT) is one of the tables of the PSIP including information on a title, a start time, and the like, of an event of a virtual channel.

However, in the present invention, an actual event and a dummy event will be separately defined as the event.

As shown in FIG. 3, the EIT consists of a plurality of fields.

The "table_id" field consists of 8 bits and has a value of '0xCB', which means that the section belongs to the EIT.

The "section_syntax_indicator" field consists of 1 bit and has a value of '1', which means that this section follows the generic section syntax after the "section_length" field.

The "private_indicator" field is composed of 1 bit and can have a value of '1'.

However, in relation to the present invention, the problem fields will be described mainly, and detailed descriptions of other fields will be omitted.

Among the fields shown in FIG. 3, the "num_events_in_section" field indicates the number of events defined in EIT-k (k = 0 to 127).

The loop including "for (j = 0; j <num_events_in_section; j ++) {}" describes the characteristics of each of the events.

In particular, in relation to the present invention, a reserved field located directly below the “for (j = 0; j <num_events_in_section; j ++) {}” syntax may be defined and used as the “event_type” field shown in FIG. 4.

The "title_text ()" field may be used as a text string describing the type (or state) of a dummy event in a use purpose of displaying a title of a broadcast program.

As shown in FIG. 4, the descriptor field of the EIT illustrated in FIG. 3 may be used as a “dummy_event_descriptor” for notifying a dummy event, thereby providing more detailed display.

However, in the present embodiment (second embodiment), a method of defining information on a dummy event will be described using the "event_type" field shown in FIG.

As shown in FIG. 5, it is a feature of the present invention to distinguish a dummy event from an actual event and further to further subdivide the dummy event.

The content previously used as '11' as a field value of the reserved field may be defined as representing an actual event, thereby maintaining backward compatibility.

The broadcast receiver may determine the type of the dummy event by checking the value of the "event_type" field of the EIT illustrated in FIG. 5, and perform a function of EPG, viewing, recording, etc. based on the content.

Third embodiment

6 is a diagram illustrating an example of defining a "title_text ()" field of an EIT according to the present invention.

Hereinafter, another example of a method of defining a dummy event according to the present invention using an event information table (EIT) will be described with reference to FIG. 6 (see FIG. 4).

In the third embodiment, the dummy data is not sent null data, but the event information is normally sent like an actual event, and only the title of the broadcast program is put in the "title_text ()" field. Rather, it is a method of directly sending text data that can display the status of a dummy event.

Fig. 6 shows an example of a " title_text () " field which can be displayed by a broadcasting station according to the state (type) of a dummy event in a table format.

That is, the third embodiment does not distinguish the dummy event and the actual event that can be compared with the "event_type" field of the second and fourth embodiments, but the third embodiment directly assigns the "title_text ()" field to the broadcasting station. In this case, a text string that describes the event can be directly inputted and sent.

In other words, in an inactive broadcast state (time zones that are not broadcast for a limited time), the broadcasting station does not insert null data into the EIT, but an inactive dummy event that can express a time zone when not broadcasting. Give the start time and duration of the inactive dummy event and broadcast it as if it were an active event.

In this case, however, the title of the event is added as "no broadcasting".

Therefore, since there is no empty space generated by dummy events, the broadcast receiver can service the EPG without the empty space, and the user can also display the contents in the event title ("title_text ()") through the EPG. It is possible to determine what kind of dummy event is present.

Fourth Embodiment

7 is a diagram illustrating an example of defining "Dummy_event_descriptor" of an EIT according to the present invention.

Hereinafter, referring to FIG. 7 (see FIG. 4), another example of a method of defining a dummy event according to the present invention using an event information table (EIT) will be described.

In the fourth embodiment, a descriptor is defined and used in an EIT in order to distinguish between a real event and a dummy event with respect to an event. FIG. 7 shows a syntax that defines “dummy_event_desciptor”.

The "dummy_event_desciptor" shown in FIG. 7 indicates whether the dummy event has the characteristics of each event included in the EIT, and if the dummy event is a dummy event, the "dummy_event_type" field is used.

The "dummy_event_type" field is defined as 8 bits, which is merely an example of implementation and may be configured as shown in FIG. 5.

The operation of the broadcast receiver is the same as the method of classifying and processing the "event_type" field of the second embodiment. However, the syntax used to distinguish a dummy event from an actual event and determine whether the dummy event is a dummy event is an extension of a reserved field (second embodiment) or a descriptor (fourth embodiment). There is a difference between

Fifth Embodiment

8 is a diagram (block diagram) showing an example of the configuration of a broadcast receiver for receiving and processing an event information table (EIT) according to the present invention.

Hereinafter, an example of a configuration of a broadcast receiver for receiving and processing an event information table (EIT) according to the present invention will be described with reference to FIG. 8 (see FIGS. 1 to 7).

According to the present invention, the broadcast receiver 801 includes a tuner unit 802, a demodulator 803, a demultiplexer 804, an A / V decoder 805, a display unit 806, and PSI / PSIP data to be described later. The base 807, the PSI / PSIP decoder 808, the channel manager 809, the channel map 810, the application controller 811, and the flash memory 812 are included.

The broadcast receiver 801 may be, for example, a digital television (DTV) capable of receiving digital broadcasts.

The tuner 802 may receive a digital broadcast signal including a program and system information / program and system information protocol (PSI / PSIP) table.

In particular, the PSI / PSIP table includes an EIT (Event Information Table) according to the present invention.

Meanwhile, the operation of the tuner 802 may be controlled by the channel manager 809.

The tuner 802 then records the result of the received digital broadcast signal in the channel manager 809 again.

The demodulator 803 is responsible for demodulating the tuned signal by the tuner 802 into a VSB / EVSB (Vestigal Side Band / Enhanced Vestigal Side Band) signal.

The demultiplexer 804 serves to demultiplex the audio data, the video data, and the PSI / PSIP table data from the signal demodulated by the demodulator 803.

The demultiplexing of the audio data and the video data may be controlled by the channel manager 809, and the demultiplexing of the PSI / PSIP table data may be controlled by the PSI / PSIP decoder 808.

The demultiplexed PSI / PSIP table is transmitted to the PSI / PSIP decoder 808, the demultiplexed audio data and video data is transmitted to the A / V decoder 805, and the A / V. The decoder 805 decodes the received data.

The PSI / PSIP decoder 808 parses a PSI / PSIP section, reads all remaining section data that is not performed by section filtering of the demultiplexer 804, and then reads the remaining section information. The data is recorded in the PSI / PSIP database 807.

The channel manager 809 requests reception of a channel related information table with reference to the channel map 810 and receives the result.

At this time, the PSI / PSIP decoder 808 demuxes the channel related information table and transmits an A / V PID list to the channel manager 809.

The channel manager 809 controls the A / V decoder 805 by directly controlling the demultiplexer 804 using the transmitted A / V PID.

The application control unit 811 controls a graphical user interface (GUI) for displaying a state of the broadcast receiver system on an on screen display (OSD).

In particular, in relation to the present invention, the demultiplexer 804 demultiplexes an event information table (EIT) or the like and transmits the demultiplexer to the PSI / PSIP decoder 808.

The event information table (EIT) according to the present invention can be easily understood through the second embodiment, the third embodiment, and the fourth embodiment, and the description of the EIT in this embodiment (the fifth embodiment) is described. The same is true.

At this time, the PSI / PSIP decoder 808 may detect the EIT to obtain information on the dummy event as well as information on the actual event.

Thus, for example, when the broadcast receiver 801 receives a request for an EPG service through a user, the channel manager 809 accesses the PSI / PSIP decoder 808 to receive related information.

The application controller 811 controls the display unit 806 to provide the user with information about an actual event and a dummy event. For example, it may be an EPG screen as shown in FIG. 2.

Meanwhile, by using the information on the dummy event detected by the PSI / PSIP decoder 808, the application control unit 809 or the PVR control unit (not shown) or the like records a specific actual event while recording a dummy event. It is also possible to control the recording by deleting a part where a dummy event is broadcast or recording only for a specific dummy event.

On the other hand, the terms used in the present invention (terminology) are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a person skilled in the art, the definition of which is used throughout the present invention. It should be based on what has been done.

The present invention is not limited to the above-described embodiments, and as can be seen in the appended claims, modifications can be made by those skilled in the art to which the invention pertains, and such modifications are within the scope of the present invention.

And, the above-mentioned numerical value is a preferred embodiment or merely an example, the scope of the present invention is not limited to the numerical values, and as can be seen in the appended claims, Modifications are possible by those skilled in the art and such modifications are within the scope of the present invention.

In the PSIP according to the present invention described above, a broadcast signal related to a dummy event, a method of controlling the broadcast signal, and effects of a broadcast receiver processing the same will be described below.

In addition to the main broadcast program, the present invention provides a separate event for a minor broadcast program (e.g., a commercial program, a software (S / W) program, a data broadcast program, or a state in which no broadcast signal is transmitted). By defining it as, it is possible to easily manage all broadcast signals separately.

For example, first, when a state in which no broadcast is actually performed (inactive event status) is regarded as a dummy event, there is an effect of knowing when an active event starts.

Second, when the advertisement of the broadcast program (advertisement of the event) is regarded as a dummy event, it is possible to easily distinguish between the broadcast program and the broadcast program such as drama, news.

Third, when the data broadcasting only or S / W download channel that transmits a special purpose without A / V is regarded as a dummy event, an event without A / V signal There is also an effect that can be clearly displayed on the EPG.

Claims (21)

Receiving a digital broadcast signal, the digital broadcast signal including a signaling table; Parsing the signaling table, wherein the parsed signaling table includes an event type field for identifying an actual event and a dummy event, wherein the actual event is currently received or received A set of elements of a program to be scheduled, wherein the actual event has a time domain according to a predetermined period, The dummy event is a set of elements of a program currently received or to be received before the actual event, The dummy event corresponds to at least one of a first event for received downloadable software, a second event of a data service to be received, and a third event when no broadcast signal is received, And processing an actual event or a dummy event of the received digital broadcast signal based on the event type field of the signaling table. The method of claim 1, And displaying information on the dummy event on an electronic program guide (EPG). The method of claim 1, The signaling table is an event information table (EIT) including event information of preset virtual channels, The event type field is included in a descriptor in the EIT. The method of claim 1, The event type field further includes information about a specific type of at least two dummy events. The method of claim 1, And recording only a specific dummy event according to a user's request or a user's option. A tuner for receiving a digital broadcast signal comprising a signaling table; A demodulator for demodulating the digital broadcast signal; A demultiplexer for demultiplexing the signaling table from the demodulated digital broadcast signal; A decoder for parsing the demultiplexed signaling table, The parsed signaling table includes an event type field for identifying an actual event and a dummy event, wherein the actual event is included in elements of a program currently received or to be received. As a set, the actual event has a time domain according to a predetermined period, The dummy event is a set of elements of a program currently received or to be received before the actual event, The dummy event corresponds to at least one of a first event for received downloadable software, a second event of a data service to be received, and a third event when no broadcast signal is received; And And a controller configured to process an actual event or a dummy event of the received digital broadcast signal based on an event type field of the signaling table. The method of claim 6, The control unit, And a digital broadcast signal receiver configured to display information about the dummy event on an electronic program guide (EPG). The method of claim 6, The signaling table is an event information table (EIT) including event information of preset virtual channels, The event type field is included in a descriptor in the EIT. The method of claim 6, The event type field further includes information on a particular type of at least two dummy events. The method of claim 6, wherein the control unit And recording a specific physical event and simultaneously deleting a dummy event inserted in the recorded specific physical event. The method of claim 6, wherein the control unit Digital broadcast signal receiver that records only certain dummy events at the user's request or user's option. delete delete delete delete delete delete delete delete delete delete

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