KR101117333B1 - Control aparatus and method for storing of caption broadcasting - Google Patents

Abstract

In the present invention, in watching analog and digital broadcasts provided with a broadcast subtitle service, in particular, by storing the subtitle information in another storage medium, the subtitle information storage control of the broadcast so that the user can reuse the stored subtitle information when desired. An apparatus and method are provided.

Subtitle information storage control method according to the present invention comprises the steps of inputting a storage command of the specific broadcast subtitle information transmitted during the viewing of the broadcast or the storage reservation of the specific broadcast subtitle information by the electronic information guide (EPG); And extracting and storing the broadcast caption information from the received broadcast.

The storing may include: extracting character information by decoding the broadcasting subtitle information; Generating the extracted text information into a file of a predetermined format; And storing the generated file in a memory unit.

Electronic Information Guide (EPG), Closed Captioning, Caption File Generator, RAM, HDD

Description

Control aparatus and method for storing of caption broadcasting

1 is a block diagram showing a TV according to the prior art.

2 is a flowchart showing a method of using a conventional closed captioning function.

3 is a block diagram showing a TV including a broadcasting subtitle information storage system according to the present invention;

4 is a flowchart illustrating a method of controlling storage in a memory unit when a broadcasting subtitle information storage command is input by a user during live broadcasting according to the present invention.

FIG. 5 is a flowchart illustrating a method of controlling storage in a memory unit when broadcasting subtitle information is reserved for storage by an electronic information guide (EPG) according to the present invention; FIG.

6 is a diagram illustrating a caption storage reservation using an electronic information guide (EPG) according to the present invention.

7 is a diagram illustrating a method of using a broadcasting subtitle information service using a remote controller during live broadcasting according to the present invention.

8 is a diagram illustrating a method of providing a broadcasting subtitle information storage reservation function using an electronic information guide (EPG) according to the present invention.

9 illustrates a subtitle list user interface (UI) in accordance with the present invention.

10 illustrates output of caption information stored on a TV screen according to the present invention;

In the present invention, in watching analog and digital broadcasts provided with a broadcast subtitle service, in particular, by storing the subtitle information in another storage medium, the subtitle information storage control of the broadcast so that the user can reuse the stored subtitle information when desired. An apparatus and method are provided.

General television, including special-purpose TVs, is now widely available in almost all homes, and aims to broadcast programs such as living information, news, entertainment, and sports, and is available to all ages and classes from infants to the elderly, students, office workers, and housewives. Regardless of the audience, you can access various information.

Therefore, TV is the most popular multimedia medium among the rapidly developing multimedia devices, and the effect of concentrating all the members who watch TV on one mass media is excellent.

Therefore, the user's desire for TV is also increasing in line with the modernization of multimedia, so that multi-functional TVs with additional functions in addition to basic TV viewing, for example, TVs with built-in learning functions, are being developed. The possibilities are endless.                         

In general, a TV capable of displaying text information displays a composite video blanking signal (CVBS), that is, a composite video signal including text information synchronized with additional information from a broadcasting station or voice for a hearing impaired, through a series of signal processing.

1 is a block diagram showing a TV according to the prior art.

Referring to FIG. 1, a TV according to the related art receives text information corresponding to a tuner 102 that tunes a desired channel from a signal received from an antenna 100 and an image signal corresponding to a channel selected by the tuner 102. It is configured to include a character information decoder 104 for decoding the.

In addition, the TV according to the prior art is a control unit 108 for receiving the character information decoded by the character information decoder 104 and the execution command received through the remote controller 106 to process and output an OSD (On Screen Display) signal And an image processor 110 which receives the TV image signal output from the tuner 102 and the OSD signal output from the controller 108 and processes the image signal.

In addition, the TV according to the related art is configured to include a display control unit 112 for controlling the image signal processed by the image processing unit 110 to be output to the display unit 114.

If the CVBS including the character information is input, first, character information is extracted and the character information decoder 104 controls the character information with the character code under the control of the controller 108. Decode with control code.                         

In this case, the control code defines a position designation code for designating a position to be displayed on the screen, a caption mode such as ascending and descending, a text color, a background color, and a text attribute.

Next, the character information decoder 104 stores a character code representing the caption information in a memory (not shown) so as to correspond to a positioning code.

The data output through the memory (not shown) is converted into characters in the form of RGB and displayed at a corresponding position through the display unit 114 under the control of the controller 108.

2 is a flowchart showing a method of using a conventional closed captioning function.

Referring to FIG. 2, in the conventional closed caption broadcasting function, the user selects whether the broadcasting caption function is selected by the user in a program in which the broadcasting caption service is provided (S200).

In step 202, when the "view broadcast subtitle" key is selected by the user, the caption decoder extracts and decodes the broadcast subtitle information (S204). The OSD is displayed on the display to display on the TV screen (S206).

However, in step 202, if the "view broadcast subtitle" key is not selected by the user, the live broadcast is displayed as it is without the broadcast subtitle service.

In the conventional broadcast caption system having such a configuration and operation, a method of providing broadcast caption information in analog broadcasting and digital broadcasting has been inevitably seen with an audio / video (A / V) signal while watching TV.                         

In addition, the conventional broadcasting subtitle system does not have a method of utilizing only subtitle information, and in order to store subtitle information, an audio / video signal must be stored together, and thus a method for users who want to use subtitle information for language and reading purposes. There is a limit.

Accordingly, the present invention solves the problem of viewing the broadcast subtitle information only while watching a live broadcast program in analog and digital broadcasting, and enables the user to view and use the broadcast subtitle information stored in the storage medium when desired. There is this.

Another object of the present invention is to store broadcast caption information in another storage medium so that a TV user can use the broadcast caption information using another medium.

Subtitle information storage control method for a broadcast according to the present invention for achieving the above object, the storage command of the specific broadcast subtitle information transmitted during viewing of the broadcast is input or storage of the specific broadcast subtitle information by the electronic information guide (EPG) Making a reservation;

And extracting and storing the broadcast caption information from the received broadcast.

Preferably, the storing step,

Extracting character information by decoding the broadcast caption information;

Generating the extracted text information into a file of a predetermined format;                     

And storing the generated file in a memory unit.

The broadcast caption information is displayed on a display unit along with storing the broadcast caption information.

The storage path is set in advance when the storage caption of the broadcasting subtitle information is reserved.

In addition, the apparatus for controlling caption information of a broadcast according to the present invention comprises: a caption decoder configured to receive a video signal corresponding to a channel selected by a user and to decode broadcast caption information;

A caption file generator configured to convert the decoded broadcast caption information into a specific file format;

A memory unit for storing a file generated by the caption file generator;

And a display unit for displaying the broadcasting subtitle information stored in the memory unit.

The memory unit may be an internal memory unit or an external memory unit.

The broadcast caption information of a specific file format stored in the internal memory is displayed on the display through a translator.

The broadcast caption information of a specific file format stored in the external memory unit is displayed on a display unit of a PC monitor, and is output to a printer.

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

3 is a block diagram showing a TV including a broadcasting subtitle information storage system according to the present invention.

Referring to FIG. 3, a TV including a broadcasting subtitle information storage system applies a tuner 302 that tunes a desired channel from a signal received from an antenna 300, and an image signal corresponding to a channel selected by the tuner 302. And a caption decoder 304 for decoding the broadcast subtitle information.

In addition, the TV including the broadcast caption information storage system may use the caption decoder 304 to extract the caption information extracted from the caption decoder 304, including file property information such as a program name, a video list, a channel, a date, a start time, a size, and caption contents. It is configured to include a caption file generator 306 for generating a file of txt format or xml format by storing together.

In addition, a TV including a broadcasting subtitle information storage system is suitable for viewing a memory unit 308 storing a file generated by the caption file generator 306 and a file stored in an xml format in the memory unit 308 in the TV OSD. It is configured to include a translator 310 that converts in a manner and provides subtitle information to the user even on a TV without an xml viewer.

In addition, the TV including the broadcasting subtitle information storage system is controlled by the caption decoder 304 and the control unit for processing the OSD (On Screen Display) signal output by receiving the execution command received through the remote controller 106 312 And a video signal processor 314 that receives the TV video signal output from the tuner 302 and the OSD signal output from the controller 312 and processes the video signal.

In addition, the TV including the broadcasting subtitle information storage system includes a display control unit 316 for controlling the image signal processed by the image processing unit 314 to be output to the display unit 318.

4 is a flowchart illustrating a method of controlling storage in a memory unit when a broadcasting subtitle information storage command is input by a user during live broadcasting according to the present invention.

Referring to FIG. 4, when a storage instruction for broadcasting subtitle information is input by a user while watching a live broadcast (S400), a caption decoder for extracting and decoding only the broadcasting subtitle information according to the storage command input signal is provided. Character information is extracted through (S402).

It is determined whether the extracted caption broadcasting information is generated and stored in a predetermined format file using a caption file creator (S404).

The caption file generator is for efficiently using caption information. The caption file generator extracts caption information extracted through a caption decoder from file attribute information such as a corresponding program name, video list, channel, date, start time, and size. The subtitles are saved together to create a txt or xml file.

The txt-type file has a merit that it is convenient to secure a storage space and to copy and move the file by reducing the file size, and the subtitle information stored in the xml format can easily search for an item by file attribute information and file content.

The reason for generating the file in the txt or xml format is that the file gives a stronger sync than other file types and provides the extracted video list and the subtitle information synchronized with the user. This is because the caption information can be used while viewing the representative image.                     

In step 404, if the caption file generator is not used, broadcast subtitle information transmitted in real time can be displayed on the TV screen, but if a caption file generator is selected by the user, the caption file generator generates the caption file generator. It is determined whether the file name is to be stored in the internal memory unit (S406). The internal memory unit is a RAM or a hard disk (HDD).

In step 406, when the file is stored by the user in the internal memory unit, the translator converts the file stored in xml format into a format suitable for viewing in the TV OSD, and the broadcast caption information is displayed even on a TV without the xml viewer. To provide to the user (S408), the broadcast caption information is displayed on the OSD to be viewed on the TV screen (S410). Here, the storage path may be set in advance at the same time as the storage reservation for storing the subtitle information.

However, in step 406, if the file is stored in the external memory by the user (S412), the broadcast caption information may be printed and viewed by the printer displayed on the PC monitor or connected to the PC without the operation of the translator (S414).

5 is a flowchart illustrating a method of controlling storage in a memory unit when broadcasting subtitle information is reserved for storage by an electronic information guide (EPG) according to the present invention.

Referring to FIG. 5, the broadcast caption information storage system according to the present invention is set by a user to store broadcast caption information when a reserved program is broadcast through an electronic program guide (EPG) (S500).

The electronic information guide (EPG) is a method of using a KBPS (Korean Broadcasting Program Service) signal currently transmitted by a domestic broadcasting station. Each broadcasting station transmits program information about its own broadcasting station to a vertical blanking interval (VBI) of a video signal. In the 16th Odd field of the Interval, the EPG receiver extracts the KBPS signal from the designated video signal for a certain period and analyzes and stores the program information.

That is, a program of each broadcasting station is displayed by date and time desired by the user. This service function is one of fields in which more technical development is required to increase the user's convenience in response to the complexity / diversity of the digital channel.

When the program is set in step 500, character information is extracted through a caption decoder that extracts and decodes only the broadcast caption information (S502), and extracts the file of a predetermined format using a caption file creator. It is determined whether to generate and store (S504).

In step 504, if the caption file generator is not used, subtitle information transmitted in real time can be displayed on the TV screen and displayed on the TV screen. However, if the caption file generator is selected by the user, the selected content will be stored in the internal memory unit. It is determined (S506).

In step 506, if the file is stored by the user in the internal memory unit, the translator converts the file stored in the xml format into a format suitable for viewing in the TV OSD, and the broadcast caption information is displayed even on a TV without the xml viewer. It provides to the user (S508).                     

Then, the broadcast subtitle information is displayed on the OSD to be viewed on the TV screen (S510). Here, the storage path may be set in advance at the same time as the storage reservation for storing the broadcasting subtitle information.

In step 510, the broadcast caption information is stored in the memory through steps 502 to 504 at the storage reservation time set by the user due to the characteristics of the electronic information guide (EPG).

However, in step 506, if the file is stored in the external memory by the user (S512), the broadcast caption information may be printed and viewed by a printer connected to the PC monitor or connected to the PC without the operation of the translator (S514). Here, the external memory unit includes a memory card.

After the step 506, the subtitle information file moved to the PC through the external memory unit can be viewed through the monitor connected to the PC through the various txt viewer or xml viewer of the PC, and can be output through the printer connected to the PC (S508 ).

6 to 10 are exemplary screens of a storage control method for using broadcast caption information according to the present invention.

6 is a diagram illustrating a caption storage reservation using an electronic information guide (EPG) according to the present invention.

Referring to FIG. 6, a screen in which a subtitle storage reservation is selected using an electronic information guide (EPG) is selected by the user in step 500 of FIG. 5, and the subtitle is displayed by the user in the main menu 600 of the digital TV. In the "Broadcast" menu 602, the user interface (UI) in the case of selecting 606 to save the subtitle on the hard disk in Korean 604 is selected.

When the subtitle storage reservation is made, the user selects the 'general' menu from the main menu 600 composed of 'channel', 'voice', 'general', and the like. The menu is displayed.

When the subtitle broadcasting menu is selected by the user in the submenu, the user may decide to turn off caption broadcasting or to watch in Korean 604 or English. If you decide to perform the subtitle save function, the storage path, RAM, HDD, or memory card is selected.

When the caption is stored and the storage location is selected as the "caption storage-HDD" 606, the user can automatically save the caption information of the program that the "subtitle broadcasting" is serviced on the hard disk (HDD).

7 is a diagram illustrating a method of using a caption broadcasting service using the remote controller 106 during live broadcasting according to the present invention.

Referring to FIG. 7, a subtitle information, a subtitle storage, and a storage location may be selected by using the "subtitle broadcasting" key 700 of the remote controller 106 during live broadcasting.

The user continuously presses the "Subtitle Broadcast" key 700 of the remote controller 106, 'Subtitle Broadcast: Off', 'Subtitle Broadcast: English: Not Save', 'Subtitle Broadcast: English: HDD Save' (702) You can select the service you want, such as 'Subtitle Broadcasting: English: Memory Card Storage'.                     

When the subtitle broadcast: English: HDD storage 702 is selected among the services, a caption 'Subtitle broadcast: English: HDD storage' 702 is displayed at the bottom of the screen being broadcast.

8 is a diagram illustrating a method of providing a caption information storage reservation function using an electronic information guide (EPG) 800 according to the present invention.

Referring to FIG. 8, a user, for example, starts from the electronic information guide (EPG) 800. When selecting the 'Wide Morning' program and pressing the 'OK' key, the window 802 of the program pops up, and the subtitle recording reservation button 804 is activated only when the program is a subtitle broadcasting program. If this is selected, the user can reserve the caption information storage.

In this case, the user can save the caption information without turning on the TV when the "caption storage reservation" time is reached even when the TV is turned off.

9 illustrates a subtitle list user interface (UI) according to the present invention.

Referring to FIG. 9, when the caption file generator is used in step 404 or step 504 by the user, when the caption information file generated by the caption file generator is stored in a memory or a memory card, the system lists the corresponding file. It is managed by adding to the "subtitle list" (900).

The subtitle list 900 may be provided as a user interface (UI) as shown in FIG. 7. When a user selects a desired subtitle information file from the "subtitle list" 900 and presses the "OK" key, a submenu 902 such as "view on screen", "save to memory card" and "delete" is provided.

10 is a diagram illustrating output of caption information stored on a TV screen according to the present invention.

Referring to FIG. 10, when the user wants to view subtitle information 1006 stored in a memory through a TV screen, the translator operation of step 408 is selected when selecting “view on screen” from the submenu 902 of the screen shown in FIG. 9. The caption information 1006 can be viewed on a TV without the xml viewer by converting a file stored in xml format into a format suitable for viewing in the TV OSD.

The program name 1000, the channel 1002, the start date and time 1004, the subtitle information 1006, the video list 1008, and the like shown on the screen are linked to each other.

For example, if the video list 1008 is known, the caption information 1006 can be known. If the program name 1000 is known, other information on the screen can be known.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible.

Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, the present invention has the effect of storing subtitle information in analog and digital broadcasting during live TV viewing so that the TV user can see the subtitle information, which can be viewed only once during viewing.                     

In addition, if you select the desired program in the electronic information guide (EGP) and set the "Subtitle Save Schedule", you can save the subtitle information even when you are not watching TV. The subtitle information is stored even in the present state, so that the TV user can view the subtitle information again when desired.

In addition, the subtitle information is stored together with the file property information such as video list, channel, date, start time, size as well as the subtitle contents and is managed in the "subtitle list" so that users can easily find the desired subtitle information file. Can be.

In addition, when viewing a specific caption information file, the extracted video list (Thumbnail) and the synchronized caption information are provided together so that the user can view the representative image of the corresponding frame and use the caption information.

In addition, in the present invention, when the subtitle information is stored in a RAM, a hard disk, or a memory card mounted on the digital TV, the subtitle information is stored in a file of txt or xml format and can be copied to each other. It can be easily moved and copied so that the user can easily use the subtitle information file.

In addition, when the user wants to view the stored caption information on a TV, the caption information file is converted into a format suitable for output to the OSD and a user interface (UI) for browsing is provided for the user to easily read the caption information. have.

Therefore, the stored digital caption information can satisfy the needs of the users who want to utilize it in fields such as language learning and reading.

Claims (8)

Inputting a storage command for specific broadcast caption information transmitted while watching a broadcast or performing a reservation for storing specific broadcast caption information by an electronic information guide (EPG); And extracting the broadcast caption information from the received broadcast and storing the extracted broadcast caption information together with file property information for managing the extracted broadcast caption information. The method of claim 1, The file attribute information includes at least one of a corresponding program name, a video list, a channel, a date, a start time, and a size. The storing step, Extracting character information by decoding the broadcast caption information; Generating the extracted character information and the file attribute information in a file of a predetermined format; And storing the generated file in a memory unit. The method of claim 1, And at least one of the broadcasting subtitle information and the file attribute information is displayed on the display unit together with the broadcasting subtitle information storage. The method of claim 1, Subtitle information storage control method for a broadcast, characterized in that for setting the storage path in advance when the storage caption of the broadcast subtitle information. A caption decoder receiving a video signal corresponding to a channel selected by a user and decoding broadcast caption information; A caption file generator configured to convert the decoded broadcast caption information into a specific file format; A memory unit for storing file attribute information for managing a file generated by the caption file generator and a subtitle list; And a display unit for displaying at least one of broadcast subtitle information and file property information stored in the memory unit. The method of claim 5, The file attribute information includes at least one of a corresponding program name, a video list, a channel, a date, a start time, and a size. And the memory unit is an internal memory unit or an external memory unit. The method of claim 6, Subtitle information storage control device for a broadcast, characterized in that the broadcast subtitle information stored in the internal memory unit is displayed on the display unit through a translator. The method of claim 6, Broadcast subtitle information stored in the external memory unit is displayed on the display unit of the PC (PC) monitor, characterized in that the output to the printer subtitle information storage control device for a broadcast.

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