KR20070082461A - Apparatus for receiving broadcasting, method for transmiting and receiving information of broadcasting program, and data structure for transmiting information of broadcasting program - Google Patents

Abstract

An apparatus for receiving broadcasting, a method for transmitting and receiving broadcasting program information, and a data structure for transmitting broadcasting program information are provided to select a program easily by providing summary information of a program in a slide show by inserting summary information of the program into EPG(Electronic Program Guide) information, and select summary information of a program at desired time, type or quality. A program information data structure includes an electronic program guide element, a program element under the electronic program guide element, and a slide preview element under the program element, containing slide type program summary information. The program element includes a schedulenamegroup type, location type, a mediadescription type, a genre type, a conditional access type, a keywords type, a memberof type, a link type, a programevent type, and program information type for displaying information of a program in a slide method.

Description

Apparatus for receiving broadcasting, method for transmiting and receiving information of broadcasting program, and data structure for transmiting information of broadcasting program}

1 is a structural diagram of a serviceInformation element

2 is a structural diagram of an epg element

3 is a structural diagram of a program type element of an EPG service according to the present invention;

4 is an embodiment of an XML structure for implementing a slideshow preview function of EPG information according to the present invention.

5 is an XML structure diagram of a media description element that is a substructure of a program type element of EPG data.

6 is an XML schema diagram illustrating an embodiment of the position of a slidepreviewtype element.

7 is an exemplary diagram of a program table on a screen on which a slide preview service of EPG information is displayed according to the present invention;

8 is a detailed operation diagram of executing a slide preview service of EPG information according to the present invention;

9 illustrates an embodiment of a mobile broadcast receiver according to the present invention.

* Description of the symbols for the main parts of the drawings *

101: tuner 102: demodulator

103: DAB decoder 104: memory

105: first audio decoder 106: error correction decoder

107: Demux 108: second audio decoder

109: video decoder 110: object descriptor decoder

111: BIFS decoder 112: packet decoder

113: data group decoder 114: MOT decoder

115: Binary EPG Parser 116: XML EPG Parser

120: program information decoder 121: EPG engine

122: EPG Browser 124: Slideshow Browser

The present invention relates to a digital broadcast receiver and a digital broadcast transmission and reception method, and more particularly, to a digital broadcast reception device for providing summary information of a slide type program and a digital broadcast transmission and reception method for enabling the same. will be.

Digital multimedia broadcasting can provide an electronic program guide (EPG) in addition to a simple video and audio reception function. By using the EPG information transmitted from the current broadcasting station, the viewer can obtain channel information, select a desired channel to move to, and perform scheduled recording.

The EPG information includes channel program information, time information, and program summary information. The EPG information is displayed in order of channel and time on the screen.

EPG information can be expressed in various languages even if the information contained therein is the same program information.

The EPG is divided into service information and program information, and the service information has a service information element as a top element, and the program information is an epi page as a top element. Has an element.

FIG. 1 is a general diagram showing the structure of the serviceInformation element and is composed of one or more ensemble elements. Each ensemble element may have several service elements. Here, the ensemble element refers to a signal transmitted through one physical frequency, and a service element has the meaning of an individual channel of a broadcast.

2 is a general diagram showing the structure of an epg element, and stores organizational information of a program.

The epg element may consist of a schedule, program, programGroups, or alternateSource element. The Schedule element includes a variety of information including a time range covered by the schedule information and start and end time information of each program within the time range.

The EPG data having the structure as shown in FIGS. 1 and 2 are encoded and transmitted through a multimedia object transfer protocol.

The conventional EPG information merely shows fragmentary information of a program, but the viewer has no choice but to rely on the fragmentary information or to watch the entire program.

Therefore, a service for effectively providing the viewer with summary information of the program is requested.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a data structure and a broadcast receiving apparatus for providing summary information of a slide type program.

Another object of the present invention is to provide a broadcast program information transmission and reception method for providing summary information of a slide type program.

In order to achieve the above object, the present invention provides a program information data structure of program guide information, comprising: an electronic program guide element, a program element below the electronic program guide element, and a summary information of a slide type program below the program element. It provides a data structure for the program guide of the broadcast comprising a slide preview element containing a.

According to another embodiment of the present invention, the method includes generating a preview information of a slideshow containing a summary of a broadcast program, and including and transmitting the preview information in an electronic program guide. A method of transmitting broadcast program information is provided.

According to another embodiment of the present invention, there is provided a method of receiving program information including preview information of a slideshow method containing a summary of a broadcast program, demodulating and decoding the program information, and the preliminary program information. It provides a program information receiving method comprising the step of displaying the view information on the screen in a slide show method.

According to still another embodiment of the present invention, a DAB decoder for decoding and outputting program information from a demodulated digital multimedia broadcasting signal, a program information decoder for decoding and outputting preview information containing a summary of the program among the program information, And an EPG engine for processing the broadcast program information output by the program information decoder into a screen output signal and an EPG output unit capable of displaying preview information in a slide manner among the broadcast program information output by the EPG engine. Provided is a broadcast receiving device.

Therefore, according to the present invention, by inserting the summary information of a program into the EPG information, the viewer can view the summary information of the program in a slideshow manner, so that the program can be easily selected.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

3 illustrates a structure of a program type element of an EPG service according to the present invention.

Referring to FIG. 3, a schema of a program type element under Program Information is shown. A schedule name group, a location, a media description, a genre, Conditional access, keywords, member of, link, and program event type exist. In the present invention, a program information type for displaying program information in a slide manner is provided. More exists. The program information type may display a logo of each program in a slide manner, or may perform a preview function by displaying images of program information at predetermined intervals. In addition, the present invention is not limited to this function and can perform various functions in a slide format. In the drawing, it is shown as a slide preview type, which means a preview function. Hereinafter, for the convenience of explanation, the display of the slide type program information is described as a slide preview type.

The slide show method refers to a method of forming a predetermined plot while outputting a plurality of still images at predetermined intervals one by one.

The slide preview information displayed can contain a large number of still images of a specific scene of the program. The slide image can be composed around a scene or a slide image based on an image briefly showing the plot of the program. It may be. That is, by presenting a brief image of the program, to help viewers select the program.

The slidepreview type may be inserted from 0 to infinity. If 0, this means that the slide preview type is not inserted.

The slidepreview type includes an image element as a lower element and a slideshow attribute as an attribute.

The slideshow attribute includes an interval attribute and a previewtype attribute.

The interval attribute means a time for displaying each image displayed in the slideshow method on the screen. The image is displayed on the screen for the time specified by the interval attribute and then advances to the next image.

The previewtype attribute indicates the type of the slide for previewing and may be given at least one value. The preview type can be given zero or a positive value. If the preview type is 0, the preview type is not given. In the case of a positive number, the number of types corresponding to the value exists.

For example, the preview type is a timepoint that selects when the preview slide represents the plot of the broadcast, past, present, or future of the program, the bit rate of the image, or normal or high quality. Types according to resolution such as recognition can be separated. This example is only an embodiment and the preview type is not limited by this embodiment.

The image element represents a slide image for preview. An unlimited number of slide images can be displayed. The image element includes a url information attribute (attribute) and a mime information attribute (attribute).

 The image element has a size information attribute.

The url attribute is a string that defines the address or protocol of the resource.

url is used for telephony and fax, SMS, postal addresses, email, world wide web (www), wireless application protocol (wap) ), DAB, and other programs in the service can be specified.

The mime attribute refers to the type of response.

The size information may have width information and height information as attributes. The width attribute represents the horizontal size of the image, and the height attribute represents the vertical size of the image.

4 illustrates an embodiment of an XML structure for implementing a slideshow preview function of EPG information according to the present invention.

Referring to FIG. 4, an internal XML structure designated as a slidepreviewtype is divided into an image element and a slideshow attachment.

The number of images can be from zero to infinity. This means that the image may not exist at all or may be present in an unrestricted positive number.

EPG information may be expressed in various languages. However, in the present invention, it will be described using XML language as an embodiment. The implementation language of the present invention is not limited by this embodiment.

The image element specifies the url, mimevalue, width, and heigh values for each image. The attributes of the image elements are described in a loop form, so that each image is displayed in a slide show manner.

url refers to a path for receiving an image file. If url is specified, url can be transmitted through the internet. If url is specified, url can also be transmitted through broadcast. This is merely an example and many communication paths are available.

mimevalue means an extension of a still image in the present invention. The extension of a still image may be bmp, jpg, jpeg, or the like.

width and height can be defined as non-negative numbers.

This image designates each image and displays it in a slide show while rotating it in the form of a loop.

The slideshow attribute has an interval and a previewtype attribute.

Interval means the interval at which the loop of the image is repeated, and represents the time when the image is displayed. The interval can be defined as a non-negative number.

The previewtype is a version of the preview. This may be a time point representing a viewpoint, or may be a distinction according to bit rate or a resolution according to resolution. If you differentiate the types by time point, you are choosing whether to preview the program's past, present, or future broadcasts. Differentiation according to the resolution can be performed by previewing by differentiating the resolution so as to enhance the viewer's preferred elements among the transmission speed and the resolution.

The slidepreviewtype structure exists under the program type and includes schedulename group, location, media description, genre, conditional access, and keywords. ), Memberof, link, and programevent types.

In addition, the slide preview type structure may exist under the program group type or under the program event type. In this case, the data structure of the attribute of the slidepreviewtype is the same, but only the insertion position is different.

The value of the slide preview type (slidepreviewtype) is a minimum value of 0, the maximum value is not limited.

If the slide preview type value is 0, the icon is not displayed on the program table displayed in the structure. If the slide preview type is a non-zero positive value, a predetermined icon is displayed. It can be displayed on the program guide.

5 shows an XML schema of a media description element, which is a substructure of a program type element of EPG data. 6 illustrates another embodiment of an XML structure for implementing a slideshow preview function of EPG information according to the present invention. FIG. 6 differs from the position of FIG. 3 in the position of the slidepreviewtype element.

The attributes and substructures of the slidepreviewtype described above are the same. Unlike the structure in which the slide preview type is located directly below the program type of FIG. 3, the schedule name group, location, media description, and genre, which are substructures of the program type, are included. (genre), conditional access, keywords (keywords), member of (link), program event (type), among the media description element (mediadescription) element is located below.

In this case, the media description is located under a program, a program event, and a program group. Therefore, the preview function can be added to programs, program events, and program groups by inserting slide preview types under the media description element.

7 illustrates a program table on a screen on which a slide preview service of EPG information is displayed according to the present invention.

Referring to FIG. 7, a viewer may click a program of interest to view a slide preview screen or, if there is a preview screen of the program, may be displayed on the same screen together with the program name.

In this case, when the preview screen is not displayed with the program name and the program is to be moved to the lower part of the program, an icon representing the preview function may be displayed so that the viewer can easily know whether the slide preview EPG information is present. You can output it together. In FIG. 7, this is denoted P.

8 illustrates a detailed operation diagram of executing a slide preview service of EPG information according to the present invention. FIG. 9 is a diagram illustrating an embodiment in which a viewer may click a program of interest to view a slide preview screen in a manner in which the slide preview service is executed.

Referring to FIG. 8, when MBC News Today is selected, string information on the program is displayed. When a preview type is selected and clicked, a slide image according to the selected preview type is displayed. Preview types 1, 2, and 3 in the drawing are cases in which the preview type is designated as 3. Preview type 1 is preview information of a program to be broadcasted now, preview type 2 is preview information of a program that has been broadcast in the past, and preview 3 is a preview function of a desired point in time if it is designated as information of a program to be broadcasted in the future. Can be performed. 5 seconds in the drawing is a case where an interval is specified as 5 seconds, and a still image is converted and displayed in a slideshow method every 5 seconds.

9 is a block diagram showing an embodiment of a mobile broadcast receiver according to the present invention, in which a tuner 101, a demodulator 102, a DAB decoder 103, a memory 104, and a first audio decoder 105 are shown. Error correction decoder 106, MPEG2 demux 107, second audio decoder 108, video decoder 109, object descriptor (OD) decoder 110, and BIFS (Binary Format for Scenes) The decoder 111 is comprised. The error correction decoder 106, the MPEG2 demux 107, the second audio decoder 108, the video decoder 109, the object descriptor decoder 110, and the BIFS decoder 111 may also be referred to as a DMB decoder. do. Also, the packet decoder 112, the data group decoder 113, the MOT decoder 114, the binary EPG parser 115, the XML EPG parser 116, the EPG engine 121, and the like for XML EPG parsing according to the present invention. EPG browser 122, database (DB) 123 is configured.

In the mobile broadcast receiver configured as described above, the tuner 101 tunes a frequency corresponding to an ensemble including a DMB service selected by a user, lowers it to the baseband, and outputs the demodulator 102 to the baseband. The demodulator 102 performs the inverse modulation scheme, that is, OFDM demodulation, and outputs a transmission frame composed of a synchronization channel, an FIC, and an MSC to the DAB decoder 103.

The DAB decoder 103 decodes the FIC and the MSC with reference to the synchronization channel in the demodulated transmission frame. If the FIC is decoded, channel information, ie, an ensemble label, a service label, and a virtual channel number assigned to the service can be extracted from the MCI, and a channel map is generated from the extracted channel information and stored in the memory 104. do.

When the MSC is decoded, the actual data can be extracted. If the extracted data is an audio signal, the data is output to the first audio decoder 105, and if the data is a data stream, the MSC is output to the RS decoder 106 in the DMB decoder.

The first audio decoder 105 decodes and outputs the compressed coded audio signal by a masking pattern adapted universal sub-band integrated coding and multiplexing (MUSCAM) scheme.

The error correction decoder 106 performs further error correction on the data stream and outputs it to the MPEG2 demux 107.

The MPEG2 demux 107 performs transport stream depacketizing, packetized element stream (PES) depacketizing, and sync layer (SL) depacketizing on an error corrected data stream. After separating the audio, video, OD, BIFS and output to each decoder (108 ~ 111).

The decoders 108 to 111 decode audio, video, OD, and BIFS with a corresponding algorithm and output the decoded data. As an example, the second audio decoder 108 decodes the audio signal with the BSAC decoding algorithm, and the video decoder 109 decodes the video signal with the H.264 decoding algorithm.

The MSC data transmitted from the DAB decoder 103 is decoded through the program information decoder 120 and preview information including a summary of the program is output. The program information decoder 120 includes a packet decoder 112, a data group decoder 113, a MOT decoder 114, a binary EPG parser 115, and an XML EPG parser 116 for XML EPG parsing. At this point, the XML EPG parser 116 is optional in configuration.

The packet decoder 112 receives the MSC data transmitted in the packet mode from the DAB decoder 103 to group data. It is located at the bottom of the protocol stack and can be sent in several designated sizes.

The data group decoder 113 is a decoder that groups the data processed by the packet decoder 112.

The MOT decoder is a decoder that collects grouped data and processes the file unit.

On the other hand, the MOT protocol is a transfer algorithm for transmitting information through various DAB (or DMB) data channels, and enables interoperability between a data service and an application type. At this time, the EPG service is also transmitted as an object through the MOT protocol. The EPG service object is divided into segments and transmitted in packet mode to facilitate data management during transmission. Therefore, the MOT decoder 114 collects segments of the EPG service delivered in the form of an object and outputs the segments to the binary EPG parser 115.

The binary EPG parser 115 is a decoder for parsing the binary EPG syntax. The decoding result is an XML EPG file that is compatible with the XML EPG standard, and is then passed to the XML EPG parser 116 or the EPG engine 121. I can deliver it. That is, the XML EPG parser 116 is optional in construction.

The XML EPG parser 116 analyzes each XML (markup language) file of the EPG, extracts program and channel related information, and outputs the information to the EPG engine 121.

The EPG engine 121 stores program and channel related information in a storage device 123 such as a memory or, if necessary, displays it on a screen in a graphic form having a user interface (UI) function through the EPG browser 122.

In this case, when there are a plurality of formats set in the received DMB service, the program information decoder block 120 formed by the packet decoder 112 as the XML EPG parser 116 is parsed and the DMB is transmitted through the EPG browser 115. All character strings corresponding to a plurality of formats set in the service are displayed on the EPG screen in the form and order of preset pattern element values.

The present invention adds a slideshow function by converting the EPG data structure, and further includes a slideshow browser 124 for outputting program summary information of a slideshow method.

Accordingly, the slide preview data processed by the receiving device is displayed in the slideshow browser 124.

On the other hand, the terms used in the present invention (terminology) are terms defined in consideration of the functions in the present invention may vary according to the intention or practice of those skilled in the art, the definitions are the overall contents of the present invention It should be based on.

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.

The effects of the broadcast receiving apparatus, the broadcast program information transmission and reception method, and the data structure for transmitting broadcast program information according to the present invention described above are as follows.

First, by inserting the summary information of the program into the EPG information, viewers can view the summary information of the program in a slide show, so that the program can be easily selected.

Second, a plurality of types of slide previews may be set, and the viewer may select summary information of a desired time, format, or quality from among types of summary information of the program.

Claims (24)

In the program information data structure of the program guide information, Electronic program guide elements; A program element below the electronic program guide element; And a slide preview element under the program element, the slide preview element containing summary information of the slide type program. The method of claim 1, wherein the slide preview element, Schedulenamegroup, location, media description, genre, conditional access, keywords, members of, links, program events Data structure for program guidance of a broadcast, characterized in that located in the same hierarchical structure independent of at least one of the type. The method of claim 1, wherein the slide preview element, The data structure for program guidance of a broadcast, characterized in that located in the lower layer of the media description (media description), which is a substructure of the program element. The method of claim 1, wherein the slide preview element, And a sub-structure of an image element designating individual characteristics of at least two still images. The method of claim 4, wherein the slide preview element, And at least one of an interval attribute specifying a slideshow interval at which the image element is displayed or a previewtype attribute specifying the type of the image element. The method of claim 4, wherein the image element, A data structure for a program guide of a broadcast comprising a url attribute specifying a transmission path of an image, and a minevalue attribute specifying a format of an image. The method of claim 4, wherein the image element, And a size attribute for specifying a size of an image. Generating slideshow preview information containing a summary of the broadcast program; and And transmitting the preview information in the electronic program guide. The method of claim 8, The electronic program guide is a broadcast program information transmission method, characterized in that implemented by XML (eXtensible Markup Language). The method of claim 8, And the preview information is located in a lower element of a program element or a programgroup element of the electronic program guide. The method of claim 8, And the preview information is located in a lower element of a media description element of the electronic program guide. The method of claim 8, The element in which the preview information is located includes at least one of an attribute indicating a location where a file including preview information is stored or an attribute indicating a resource type of a file including preview information. How to send information. Receiving program information including preview information of a slide show method containing a summary of a broadcast program; Demodulating and decoding the program information; And Broadcasting program information receiving method comprising the step of displaying the preview information of the program information on the screen in a slide show method. The method of claim 13, And the preview information comprises at least two still images. The method of claim 13, The electronic program guide is a broadcast program information transmission method, characterized in that implemented by XML (eXtensible Markup Language). The method of claim 13, And the preview information is located in a lower element of a program element or a programgroup element of the electronic program guide. The method of claim 13, And the preview information is located in a lower element of a media description element of the electronic program guide. The method of claim 13, The element in which the preview information is located includes at least one of an attribute indicating a location where a file including preview information is stored or an attribute indicating a resource type of a file including preview information. Broadcast program information transmission method. A DAB decoder for decoding and outputting program information from the demodulated digital multimedia broadcasting signal; A program information decoder for decoding and outputting preview information including a summary of the program among the program information; An EPG engine which processes the broadcast program information output by the program information decoder into a screen output signal; And And an EPG output unit capable of expressing preview information in a slide manner among broadcast program information output by the EPG engine. The method of claim 19, And the preview information displayed by the EPG output unit is implemented as at least two still images. The method of claim 19, The program information decoder includes a binary EPG parser capable of converting and receiving received binary type program information into XML (eXtensible Markup Language). The method of claim 20, And the preview information is located in a lower element of a program element or a programGroup element among the XML elements of the program information. The method of claim 20, And the preview information is located in a lower element of a mediaDescription element among the XML elements of the program information. The method of claim 20, The XML element in which the preview information is located may have an attribute indicating a location of a file including the preview information or an attribute indicating a resource type of a file including the preview information. and at least one attribute (attribute) of any one of (attribute).

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