KR20110061802A - Apparatus and method for playing video using subtitle information - Google Patents

Abstract

PURPOSE: An image reproducing device using caption information and image reproducing method thereof are provided to easily search for an image which a user desires by using caption information. CONSTITUTION: A control unit receives reproduction request command of specific content(S601). The control unit receives specific content which reproduction is requested through a content receiving unit(S602). The control unit receives a search keyword inputted from the user through a command receiving unit(S603).

Description

Apparatus and method for playing video using subtitle information}

The present invention relates to a video reproducing apparatus for reproducing data, and more particularly, to a video reproducing apparatus and a video reproducing method using subtitle information for setting a reproducing section based on subtitle information.

In the present age of multimedia information, digital video processing devices such as STB (Settop Box) and PVR (Personal Video Recorder) provide not only the function of providing the video but also the function of recording and displaying the video of the specific program. .

As a result, the user can view an image of the recorded program. At this time, the user sometimes wants to extract and view only a part of the program.

For example, in the whole image of an educational program or a liberal art program such as a natural documentary, a user may want to extract only the parts he / she needs. In this case, the user searches for the desired part as quickly as possible and displays it from there. I need to make it work.

On the other hand, the video of the above-described program sometimes includes a character in the subtitle that implicitly indicates the content of the video currently being displayed. When such subtitle characters are used, the user desires to enter the program. The video can be searched more easily and quickly to satisfy the above needs.

According to an embodiment of the present invention, in order to satisfy the necessity, subtitle information is quickly and easily searched for by a user by using subtitle information, and the image is reproduced from the corresponding point of time using the retrieved portion as a reproduction point. It is possible to provide a video reproducing apparatus and a video reproducing method thereof.

 The technical problems to be achieved in the proposed embodiment are not limited to the technical problems mentioned above, and other technical problems not mentioned above are clear to those skilled in the art to which the proposed embodiments belong from the following description. Can be understood.

According to an embodiment of the present invention, an image reproducing method of an image reproducing apparatus using subtitle information includes: inputting a search keyword; Searching for a portion of the first data corresponding to the input search keyword; And outputting second data corresponding to the position of the searched part.

Also, an image reproducing apparatus using subtitle information according to an embodiment of the present invention includes a command receiving unit for receiving a search keyword from a user; A content receiving unit configured to receive content including first and second data; And a controller configured to search for a portion corresponding to the input search keyword among the received first data and to set an output position of the second data using time information of the found portion. And outputting the received second data from a set output position.

According to an embodiment of the present invention, it is possible to quickly and easily search for a desired playback time point using location information of a subtitle file, thereby solving inconvenience of search time and usability for setting the playback time point. There is an effect that the user can easily search and access the desired image within a specific program.

The proposed embodiment will be described.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the embodiments presented, and other inventions which are further deteriorated by addition, change, deletion, etc. of other components, or other embodiments included within the scope of the present invention can be easily made. I can suggest.

The term used in the present invention was selected as a general term widely used as possible, but in some cases, the term is arbitrarily selected by the applicant, in which case the meaning is described in detail in the description of the invention, the name of a simple term It should be clear that the present invention is to be understood as a meaning of terms.

In other words, in the following description, the word 'comprising' does not exclude the presence of other elements or steps than those listed.

1 is a view showing the configuration of a display device according to a first embodiment of the present invention.

Referring to FIG. 1, the display apparatus according to the first exemplary embodiment of the present invention includes a content receiver 110, a data processor 120, a data outputter 130, a memory 140, a command receiver 150, and a controller. And an OSD processor 170.

The content receiving unit 110 receives a content to which a playback request is input from the user.

Herein, the content may be pre-stored content, content transmitted through an external device, or broadcast content provided in real time.

That is, the content may be a pre-stored recording in an internal storage medium, a content recorded in a disc recording medium such as a DVD, or may be a real-time broadcast signal provided in real time.

Accordingly, the content receiving unit 110 may be implemented as an HDD interface unit for receiving a specific recording of which a reproduction request is input among recordings stored in an internal storage medium. In addition, the content receiving unit 110 may be implemented as a media interface unit to which an external device such as a DVD player or a VCR is connected.

In other words, the content receiver 110 may include a digital tuner for receiving a digital broadcast signal, an analog tuner for receiving an analog broadcast signal, a digital external signal input terminal and an analog external signal input terminal to which an external device is connected, and a PVR (Personal Video). It may also be a digital recorder such as a recorder and a digital video recorder (DVR).

Here, the digital signal input terminal may be a terminal for connecting a digital cable broadcast signal input terminal or a digital external player such as a DVD, and the analog external signal input terminal may be a VCR signal input terminal or an analog cable broadcast signal input terminal.

The digital tuner tunes a transport stream of a desired channel by user selection among transport streams, which are digital broadcast signals input through a digital broadcast antenna. The analog tuner tunes a video program of a desired channel by user selection among video programs, which are analog broadcast signals input through an analog broadcast antenna.

Accordingly, the broadcast data may include an analog television broadcast program, a digital broadcast program, a playback program input from an external player, a recording program, and a cable broadcast program in real time. Here, the broadcast data includes both a video signal, an audio signal, and a data signal in the case of a digital signal, and includes only a video signal and an audio signal in the case of an analog signal.

The data processor 120 processes the signal to output the content received and output through the content receiver 110.

In this case, the content includes at least one of the first data, the second data, and the third data. The first data may be image data, the second data may be audio data, and the third data may be caption data.

That is, the received content may be movie content consisting of video data, audio data, and subtitle data, music content consisting only of audio data, or documentary content consisting only of video data and audio data.

Accordingly, the data processor 120 may include an image data processor for signal processing the received image data, a voice data processor for signal processing audio data, and a caption data processor for signal processing caption data. have.

The data output unit 130 outputs the signal processed data through the data processing unit 120 and provides the same to the user.

In this case, the data output unit 130 outputs an output image including only the output image or image data in which the signal processed image data and the caption data are mixed, and an output voice composed of the signal processed audio data. It may be configured to include a speaker.

Here, the display unit may be applied to various types of display modules such as digital light processing (DLP), liquid crystal display (LCD), plasma display panel (PDP), light emitting diode lamp (LED), and organic light emitting diode (OLED). .

The memory unit 140 stores software related to the operation of the display apparatus and various data generated during the operation of the display apparatus.

The memory unit 140 is embodied as an EEPROM (Electrically Erasable Programmable Read-Only Memory), and is preferably connected to the controller 160 to be described later according to the I2C method.

The command receiving unit 150 receives various user commands related to the manipulation of the display apparatus from the user. Here, the user command includes a play command, a channel up / down command, a volume up / down command, a power on / off command, and the like for playing the received content. More preferably, the input command includes a search keyword for searching for a specific position of the content. Here, the command receiver 150 may be implemented as a local key input unit provided at one side of the display apparatus or an infrared signal receiver for receiving an infrared signal transmitted from a remote controller.

The OSD processor 170 generates a menu screen such as a change of an operation state of the display apparatus, a search result according to a specific search keyword, and adds the menu screen to the image data received through the content receiver 110. Here, the OSD processing unit 170 generates the menu screen in the form of OSD (On Screen Display), and the data generated in the OSD form may be text data or graphic data.

The text data may be a notification message indicating that it is not possible to receive the requested image program from the user. The text data may be a notification message indicating that there is no search content corresponding to the search keyword. Also, the graphic data may be a pointer of a remote controller (spatial remote controller) for inputting a user request condition.

The controller 160 controls the overall operation of the display apparatus.

In particular, the controller 160 determines a playback position corresponding to a specific search keyword transmitted through the command receiver 150, and plays back the content received through the content receiver 110 from the determined playback position. Control this to be done.

Hereinafter, the operation of the controller 160 will be described in more detail.

In the first embodiment, the controller 160 searches for a part corresponding to a search keyword input from a user by using the information of the subtitle data, and accordingly outputs the image data from a time point corresponding to the searched part. Control to lose.

First, a user may input a search keyword corresponding to a part to be played by the user through the command receiving unit 150. Here, as the search keyword, Korean, English, and special characters may be input.

If the search keyword is input as described above, the controller 160 searches for the caption including the input search keyword from the caption data received from the content receiving unit 110.

3 is a diagram illustrating a configuration of general caption data.

Referring to FIG. 3, the caption data includes text information about the caption provided with the actual image data, and time information 310 for displaying the text information.

Accordingly, the controller 160 searches for a part including the same text as the search keyword from the text information included in the caption data.

As described above, if a portion corresponding to the search keyword is found in the caption data, the controller 160 causes a search result screen including information on the search portion to be displayed.

4 is a diagram illustrating a search result screen provided according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the search result screen 400 includes a search part information providing area 410 displaying subtitle information searched based on the input search keyword, and a menu item display area 420 including the various menu items. ) Exists.

In this case, when the number of parts searched through the controller 160 is singular, the controller 160 displays a search result including information on the search part and simultaneously receives the received content from a position corresponding to the search part. Control can be performed.

However, if there are a plurality of searched parts, the controller 160 selects one searched part from the searched parts displayed through the searched part information providing area 410, and thus corresponds to the selected part. The playback of the received content is made from a location.

That is, the user selects any one of the plurality of search parts by using a moving menu item and a selection menu item among the menu items provided through the menu item display area 420.

If a specific search portion is selected from the user, the controller 160 checks time information of the selected search portion in the caption data, and thereby confirms the position of the image data corresponding to the checked time information. .

That is, as shown in FIG. 3, the caption data includes position information of image data to which respective text is to be displayed. For example, the text 'wrongly traveling but okay' among the caption data is output when the '54990' position of the image data is displayed.

Accordingly, the controller 160 identifies the location information of the image data corresponding to the selected search part by using the time information included in the caption data.

If the position information of the image data is confirmed, the controller 160 sets the checked position as a playback start time and controls playback of the received content from the set playback start time.

Accordingly, as the user inputs a search keyword corresponding to a specific subtitle among the subtitle data, the user can easily search for a part that he / she wants to see, and thus can be viewed without any difficulty from the above part.

2 is a diagram illustrating a configuration of a display apparatus according to a second embodiment of the present invention.

Referring to FIG. 2, the configuration of the display device according to the second embodiment is the same as that of the display device according to the first embodiment, and only the data generator 210 is additionally provided.

That is, the display apparatus according to the first exemplary embodiment searches for a part corresponding to a specific search keyword input by a user using the received subtitle data, but the display apparatus according to the second exemplary embodiment of the present invention receives the received voice. Using the data, a part corresponding to a specific search keyword input from the user is searched.

Accordingly, the configuration of the display apparatus according to the second embodiment of the present invention uses the configuration of the display apparatus according to the first embodiment as it is, and accordingly the operation of the additionally provided data generation unit 210 and accordingly Only the operation of the changed control unit 160 will be described.

The data generator 210 generates caption data by using voice data included in the received content. That is, the content is composed of video data and audio data. Accordingly, the data generator 210 generates caption data using the audio data.

In this case, the data generator 210 generates caption data based on the voice data using a voice recognition method. Since a technique for generating caption data using speech data based on the speech recognition method is already known in the art to which the present invention pertains, a detailed description thereof will be omitted.

When generating the caption data as described above, the data generation unit 210 also generates index information indicating the position information of the voice data corresponding to each generated text.

Accordingly, the controller 160 searches for the portion corresponding to the input search keyword in the generated subtitle data, and uses the generated index information to thereby position information on the voice data corresponding to the retrieved portion. Check it. When the location information of the audio data is confirmed, the location information of the video data can be confirmed, and accordingly, the controller 160 outputs the audio data and the video data of a specific location by using the identified location information. do.

5 is a diagram illustrating a playback screen according to an exemplary embodiment of the present invention.

Referring to FIG. 5, the controller 160 displays a playback screen 500 including image data and subtitle data 510 corresponding to the identified position as described above. In addition, the playback screen includes a location information providing area 520 in which information on the searched location is provided, and accordingly, a user can currently use the playback location information provided through the location information providing area 520. The information on the part to be reproduced can be easily confirmed.

As described above, according to an embodiment of the present invention, the desired playback time can be searched quickly and easily using location information of the subtitle file, thereby solving the inconvenience of searching time and usability for setting the playback time. In addition, there is an effect that the user can easily search and access the desired image within a specific program.

6 is a flowchart for explaining a method of reproducing an image of a display apparatus according to a first embodiment of the present invention step by step.

Referring to FIG. 6, first, the controller 160 receives a command for playing a specific content (step 601). That is, the user connects a specific external device and, accordingly, inputs a play command of a specific disc inserted into the connected external device through the command receiving unit 150. In addition, the user selects any one of the recordings stored in the hard disk, and thereby inputs a playback command of the selected recording.

When a play request command for the specific content is input, the controller 160 causes the content receiver 110 to receive the specific content requested to be played (step 602). In this case, the received content includes first data consisting of subtitle data and second data consisting of image data. In addition, the received content may optionally include voice data.

In addition, the user inputs a search keyword corresponding to a specific part to be reproduced by the user using the command receiving unit 150, and accordingly, the control unit 160 inputs from the user through the command receiving unit 150. The received search keyword is received (step 603).

When the search keyword is delivered, the controller 160 searches for the portion in which the input search keyword exists in the caption data included in the received content (step 604). That is, the controller 160 compares the text information included in the caption data with the search keyword, and searches the same text information as the search keyword according to the comparison result.

In operation 605, the controller 160 determines whether a specific part corresponding to the search keyword has been searched.

If the portion corresponding to the search keyword is not searched, the controller 160 controls to display a search result screen indicating that a search result does not exist, and accordingly causes the search keyword to be input again from a user (step 606). ).

On the other hand, if the part corresponding to the search keyword is searched, the controller 160 causes the search result screen including the information on the searched part to be displayed as shown in FIG. 4 (step 607). In this case, the controller 160 displays the search result screen as described above and the reproduction of the image data included in the content is performed from the time corresponding to the search part when the number of search parts according to the search is singular. can do.

In addition, if there are a plurality of searched parts, the controller 160 determines whether a specific search part is selected on the displayed search result screen (step 608).

If a specific search part is selected on the search result screen, the controller 160 checks time information of the subtitle corresponding to the selected search part (step 609).

If the time information of the caption is confirmed, the controller 160 checks the position of the image data corresponding to the identified time information (step 610), and the image data and the caption data are reproduced from the identified position. (Step 611).

7 is a flowchart for explaining a method of reproducing an image of a display apparatus according to a second embodiment of the present invention step by step.

Referring to FIG. 7, first, the controller 160 receives a command for requesting playback of specific content (step 701). That is, the user connects a specific external device and, accordingly, inputs a play command of a specific disc inserted into the connected external device through the command receiving unit 150. In addition, the user selects any one of the recordings stored in the hard disk, and thereby inputs a playback command of the selected recording.

When a play request command for the specific content is input, the controller 160 causes the content receiver 110 to receive the specific content requested to be played (step 702). In this case, the received content includes first data consisting of audio data and second data consisting of image data.

The data generator 210 generates caption data using the received voice data (step 703). That is, the data generator 210 generates caption data made of text through speech recognition of the voice data. In this case, the generated subtitle data includes location information of voice data corresponding to each text.

In addition, the user inputs a search keyword corresponding to a specific part to be reproduced by the user using the command receiving unit 150, and accordingly, the control unit 160 inputs from the user through the command receiving unit 150. The received search keyword is received (step 704).

When the search keyword is delivered, the controller 160 searches for a portion of the generated subtitle data in which the input search keyword exists (step 705). That is, the controller 160 compares the text information included in the generated caption data with the search keyword, and searches the same text information as the search keyword according to the comparison result.

Subsequently, the controller 160 displays a search result screen including information on the searched part according to whether a specific part corresponding to the search keyword is searched (step 706). In this case, the controller 160 displays the search result screen as described above and the reproduction of the image data included in the content is performed from the time corresponding to the search part when the number of search parts according to the search is singular. can do.

In addition, if there are a plurality of searched parts, the controller 160 determines whether a specific search part is selected on the displayed search result screen (step 608).

If a specific search part is selected on the search result screen, the controller 160 checks the location information of the voice data corresponding to the selected search part using the generated index information (step 708).

If the position information of the audio data is confirmed, the controller 160 checks the position of the image data corresponding to the identified position information (step 709), and playback of the image data and the audio data starts from the confirmed position. It is made (step 710).

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1 is a view showing the configuration of a display device according to a first embodiment of the present invention.

2 is a diagram illustrating a configuration of a display apparatus according to a second embodiment of the present invention.

3 is a diagram showing a configuration of general caption data.

4 is a diagram illustrating a search result screen provided according to an exemplary embodiment of the present invention.

5 is a diagram illustrating a playback screen according to an embodiment of the present invention;

6 is a flowchart for explaining a method of reproducing an image of a display device according to a first embodiment of the present invention step by step.

7 is a flowchart for explaining a method of reproducing an image of a display apparatus according to a second embodiment of the present invention step by step.

Claims (14)

Inputting a search keyword; Searching for a portion of the first data corresponding to the input search keyword; And, And outputting second data corresponding to the position of the searched part. The method of claim 1, Further comprising the step of requesting to play a specific content, And the content requested to be reproduced comprises first data and second data. The method of claim 1, The first data is caption data, And the second data is video data. The method of claim 1, The first data is voice data, And the second data is video data. The method of claim 4, wherein Generating subtitle data using the voice data; The searching is performed on the basis of the generated caption data. The method of claim 1, And displaying a search result of the first data performed on the basis of the search keyword. The method of claim 6, If a plurality of parts searched on the basis of the search keyword in the first data, the step of selecting any one of the plurality of search parts is further selected, the image playback of the video playback apparatus using the caption information Way. The method of claim 1, The outputting of the second data may include Confirming time information of a part found in the first data; Confirming location information of second data corresponding to the time information by using the identified time information; And outputting the second data from the identified position. A command receiving unit for receiving a search keyword from a user; A content receiving unit configured to receive content including first and second data; And, A control unit for searching for a portion corresponding to the input search keyword among the received first data and setting an output position of the second data using time information of the searched portion; And the control unit controls to output the received second data from the set output position. The method of claim 9, The first data is caption data, And the second data is video data. The method of claim 9, The first data is voice data, And the second data is video data. The method of claim 11, The apparatus may further include a data generator configured to generate third data using the received first data. And the third data is caption data. The method of claim 9, The apparatus may further include a data output unit configured to display second data corresponding to the output position set through the controller. And the control unit controls to display a search result of the first data performed based on the search keyword through the data output unit. The method of claim 13, And the search result includes a selection menu item for selecting any one of a plurality of search parts.

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