Abstract:
An image display device includes: a tuner for receiving a broadcasting signal; a control unit for setting an OSD language or a caption language by extracting language information from the received image display device, and outputting the received broadcasting signal and multimedia data inputted from an external device; a storage unit for storing a plurality of language data; and a communication unit for transmitting information on the OSD language or the caption language to the external device, and receiving the multimedia data including audio data or caption data.

Description:
BACKGROUND OF THE INVENTION  
       [0001]     1. Field of the Invention  
         [0002]     The present invention relates to a recording medium reproducing apparatus connected to an image display device, and a recording medium reproducing method using the same.  
         [0003]     2. Description of the Related Art  
         [0004]     Image display devices display broadcasting signals and display video signals received from recording medium reproducing apparatuses connected thereto.  
         [0005]     Compact disks (CDs) and digital video disks (DVDs) have been widely used as recording media. Recently, recording media using Blue ray disks (BDs) and holograms have also been introduced.  
         [0006]     The recording medium stores video data, audio data, and caption data. For example, the DVD provides eight kinds of audio data and thirty-two kinds of caption data.  
         [0007]     When the recording medium is loaded on the recording medium reproducing apparatus, a user can select a reproduction language of the audio data or the caption data. When the user does not select the reproduction language, the audio data or the caption data are reproduced in a language initially set thereto.  
         [0008]     Referring to  FIG. 1 , an image display device  10  is connected to a recording medium reproducing apparatus  20 . When a recording medium is loaded on the recording medium reproducing apparatus  20 , the image display device  10  is set to a desired reproduction language using an input key disposed on a front surface of a remote controller or the image display device, in the case where the initially set reproduction language is not a desired language.  
         [0009]     However, although the reproduction language of the audio data or the caption data is set, the set language is not stored in the recording medium reproducing apparatus  20 . Therefore, when another recording medium is reproduced, there is an inconvenience in that the reproduction language is again set.  
         [0010]     The user has to directly set the reproduction language through an on screen display (OSD) menu screen. Therefore, when the user is not habituated to the OSD menu manipulation or the OSD language is not his or her native language, it is difficult for the user to set the reproduction language.  
         [0011]     A related art reproduction language setting method will now be described with reference to  FIG. 2 .  
         [0012]     In operations S 1  and S 12 , it is determined whether or not a user selects a reproduction of a recording medium when the user inputs a power-on command to the recording medium reproducing apparatus.  
         [0013]     In operation S 13 , when the user selects the production of the recording medium, the recording medium is recognized by loading the recording medium.  
         [0014]     In operation S 14 , it is determined whether or not a reproduction language setting of the recording medium is possible.  
         [0015]     In operations S 15  and S 16 , when the reproduction language setting is possible, the user directly sets the reproduction language and reproduces the corresponding recording medium.  
         [0016]     In operation S 17  and S 18 , when the reproduction is completed and the user inputs a power-off command, the reproduction of the recording medium is ended.  
         [0017]     In operation S 19 , when the reproduction language setting is impossible in operation S 14 , the initially set reproduction language is reproduced.  
         [0018]     In operation S 20 , when the user does not play the recording medium reproducing apparatus in operation S 12 , a received video is displayed as it is.  
         [0019]     As described above, in reproducing the recording medium, the user has to directly set the reproduction language when a mainly used language and an initially set language are different from each other.  
       SUMMARY OF THE INVENTION  
       [0020]     Accordingly, the present invention is directed to an image display device, a recording medium reproducing apparatus, and a recording medium reproducing method using the same that substantially obviate one or more problems due to limitations and disadvantages of the related art.  
         [0021]     Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.  
         [0022]     To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided an image display device including: a tuner for receiving a broadcasting signal; a control unit for setting an OSD language or a caption language by extracting language information from the received image display device, and outputting the received broadcasting signal and multimedia data inputted from an external device; a storage unit for storing a plurality of language data; and a communication unit for transmitting information on the OSD language or the caption language to the external device, and receiving the multimedia data including audio data or caption data.  
         [0023]     In another aspect of the present invention, there is provided an image display device including: a tuner for receiving a broadcasting signal; a storage unit for storing a plurality of language data; a control unit for extracting language information from the broadcasting signal, setting an OSD language or a caption language to an extracted language when the extracted language information coincides with any one of the language data stored in the storage unit, and controlling the received broadcasting signal to be outputted.  
         [0024]     In a further another aspect of the present invention, there is provided a displaying method including: transmitting a set language information to an external device; receiving multimedia data reproduced according to the language information from the external device; and outputting the multimedia data.  
         [0025]     In a further aspect of the present invention, there is provided a recording medium reproducing apparatus including: a recording medium reproduction unit for reproducing a recording medium; a communication unit connected to an image display device to receive a language information of an OSD language or a caption language of the image display device and transmit a reproduced multimedia data according to the received language information; and a control unit for selecting a reproduction language from the recording medium according to the language information and reproducing the multimedia data.  
         [0026]     It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0027]     The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:  
         [0028]      FIG. 1  is a block diagram illustrating an image display device and a recording medium reproducing apparatus according to the related art;  
         [0029]      FIG. 2  is a flowchart illustrating a related art reproduction language setting method;  
         [0030]      FIG. 3  is a block diagram illustrating an image display device and a recording medium reproducing apparatus according to an embodiment of the present invention;  
         [0031]      FIG. 4  is a flowchart illustrating a method for setting an OSD language and a caption language of an image display device according to the present invention; and  
         [0032]      FIG. 5  is a flowchart illustrating an operation of the recording medium reproducing apparatus according to the present invention. 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0033]     Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.  
         [0034]      FIG. 3  is a block diagram illustrating an image display device and a recording medium reproducing apparatus according to an embodiment of the present invention.  
         [0035]     Referring to  FIG. 3 , an image display device  100  and a recording medium reproducing apparatus  200  are connected together such that they can communicate with each other.  
         [0036]     The image display device  100  is configured to automatically set an OSD language or a caption language according to a received broadcasting signal. The recording medium reproducing apparatus  200  sets a reproduction language of a recording medium to the OSD language or the caption language of the image display device  100  through the communication with the image display device  100 .  
         [0037]     For example, the recording medium reproducing apparatus  200  may reproduce audio data or caption data stored in the recording medium in the same language as the OSD language or the caption language of the image display device  100 .  
         [0038]     When the audio data and the caption data stored in the recording medium are reproduced in the same language as the OSD language or the caption language, the user can conveniently view multimedia contents by reproducing the recording medium in a main language without setting a separate reproduction language.  
         [0039]     Specifically, many users study a foreign language while viewing the caption displayed on the image display device  100 . Therefore, in the case where audio data or caption data stored in the recording medium are reproduced in the same language as the caption language, the user can conveniently study the foreign language through multimedia contents.  
         [0040]     As described above, the OSD language or the caption language of the image display device  100  can be automatically set by extracting language information from the received broadcasting signal. Alternatively, the OSD language or the caption language can be selected and set by the user.  
         [0041]     The image display device  100  includes a tuner  102 , a demux  103 , a first storage unit  106 , a first control unit  107 , a video processing unit  104 , a first communication unit  108 , a first key input unit  101 , and a display unit  105 . The tuner  102  selects the received broadcasting signal and the demux  103  separates the selected broadcasting signal into a video signal, an audio signal, and additional information. The first storage unit  106  stores a plurality of language data. The first control unit  107  analyzes language information from the broadcasting signal separated by the demux  103 , allows the OSD language or the caption language to be set to a language selected among the language data stored in the first storage unit  106 , and allows the viewing of the multimedia contents. In addition, the video processing unit  104  processes the multimedia contents according to a control signal of the first control unit  107  such that they can be outputted. The first communication unit  108  communicates with the recording medium reproducing apparatus  200  according to the control signal of the first control unit  107 . The first key input unit  101  inputs user commands into the first control unit  107  and the display unit  105  displays the multimedia contents processed in the video processing unit  104 .  
         [0042]     The recording medium reproducing apparatus  200  includes a second communication unit  201 , a recording medium reproduction unit  202 , a second control unit  203 , and a second key input unit  205 . The second communication unit  201  communicates with the first communication unit  108  of the image display device  100  and the recording medium reproduction unit  202  reproduces the recording medium. The second control unit  203  determines whether or not it is possible to set the reproduction language for the recording medium that is reproduced through the recording medium reproduction unit  202 , and sets the reproduction language of the recording medium by determining whether or not the reproduction language supported by the recording medium coincides with the language information set to the image display device  100 , the language information being received through the second communication unit  201 . The second key input unit  205  inputs user commands.  
         [0043]     An operation of the image display device and the recording medium reproducing apparatus according to the embodiment of the present invention will be described below.  
         [0044]     When the user inputs a power-on command through the first key input unit  101  of the image display device  100 , the first control unit  107  recognizes the inputted power-on command and outputs the control signal to the tuner  102  to select a channel that is previously selected by the user.  
         [0045]     The demux  103  separates the broadcasting signal received through the tuner  102  into video signal, audio signal, and additional information. The separated broadcasting signal is inputted to the first control unit  107  and the first control unit  107  checks the language information included in the received broadcasting signal.  
         [0046]     For example, the first control unit  107  analyzes the language information by parsing a teletex (TTX) of the broadcasting signal or a caption unicode set, and controls to set the OSD language or the caption language of image display device  100  using the analyzed language information.  
         [0047]     When the user wants to view a video stored in the recording medium views through the recording medium reproducing apparatus  200 , he or she inputs a power-on command through the second key input unit  205  and inputs a replay command.  
         [0048]     The second control unit  203  recognizes the desired recording medium through the recording medium reproduction unit  202  and determines whether or not it is possible to set the reproduction language of the recording medium through the recording medium reproduction unit  202 .  
         [0049]     Then, the image display device  100  transmits the language information to the recording medium reproducing apparatus  200  through the first communication unit  108 .  
         [0050]     The second control unit  203  reproduces the recording medium in the same language when the language information set in the image display device  100  coincides with the selectable reproduction language of the recording medium reproduced through the recording medium reproduction unit  202 .  
         [0051]     On the other hand, the second control unit  203  reproduces the recording medium in the initially set reproduction language when the language information set in the image display device  100  does not coincide with the selectable reproduction language of the recording medium reproduced through the recording medium reproduction unit  202 .  
         [0052]     That is, the second control unit  203  reproduces the recording medium in the initially set reproduction language when the recording medium has no language data (audio data or caption data) corresponding to the language set in the image display device  100 .  
         [0053]     The video processing unit  104  outputs video and audio data received through the recording medium reproducing apparatus  200  and processes the caption data to be displayed through the display unit  105 .  
         [0054]      FIG. 4  is a flowchart illustrating a method for setting an OSD language and a caption language of an image display device.  
         [0055]     Referring to  FIG. 4 , in operations S 101  and S 102 , it is determined whether or not an automatic OSD language setting mode is selected, when a user inputs a power-on command to the image display device.  
         [0056]     In operation S 103 , when the user selects the automatic OSD language setting mode, the language information is extracted by analyzing the received broadcasting signal. For example, the language information can be extracted using text information included in the broadcasting signal.  
         [0057]     In operation S 104 , it is determined whether or not the OSD language can be selected according to the extracted language information. That is, it is determined whether or not the language data corresponding to the extracted language information exists in the language data stored in the first storage unit  106 .  
         [0058]     In operation S 105 , when the selectable language data exists, the OSD language is set according to the extracted language information.  
         [0059]     In operation S 107 , when the user inputs a power-off command, the process is terminated.  
         [0060]     In operation S 107 , when the user does not select the automatic OSD language setting mode or when there is no language data corresponding to the extracted language information, the current OSD language is maintained.  
         [0061]     Although the OSD language is set through the automatic OSD language setting mode in  FIG. 4 , the caption language can also be set through an automatic caption language setting mode in the same manner as the automatic OSD language setting mode.  
         [0062]      FIG. 5  is a flowchart illustrating an operation of the recording medium reproducing apparatus.  
         [0063]     Referring to  FIG. 5 , in operations S 210  and S 202 , the power-on command of the recording medium reproducing apparatus is inputted and the play command of the recording medium is inputted.  
         [0064]     In operations S 203  and S 204 , the recording medium reproducing apparatus recognizes the recording medium and determines whether or not the reproduction language setting is possible. The reproduction language may be the audio data or the caption data, which is outputted together with the video data.  
         [0065]     In operation S 205 , when the reproduction language setting of the recording medium is possible, the recording medium reproducing apparatus receives the language information from the image display device.  
         [0066]     In operation S 206 , the recording medium reproducing apparatus receives the language information and determines whether or not the language information coincides with the reproduction language that is selectable in the recording medium.  
         [0067]     In operation S 207 , when the reproduction language that is selectable in the recording medium coincides with the language information received from the image display device, the reproduction language of the recording medium is selected and reproduced according to the received language information.  
         [0068]     The reproduction language may be the audio data or the caption data. When the language set in the image display device is the Korean language, audio and caption can be reproduced in the Korean language. Alternatively, the audio can be reproduced in the Korean language while the caption is reproduced in English. Also, the audio can be reproduced in English while the caption is reproduced in the Korean language.  
         [0069]     The above-described operation can be determined according to the setting of the image display device.  
         [0070]     In operation S 210 , when the reproduction language that is selectable in the recording medium does not coincide with the language information received from the image display device in operation S 106 , the recording medium is reproduced in the reproduction language initially set in the recording medium.  
         [0071]     In operation S 208  and S 209 , when the reproduction language is determined, the recording medium is reproduced and the reproduction of the recording medium is completed.  
         [0072]     As described above, the OSD language or the caption language of the image display device can be set by analyzing the unicode set in the caption and the TTX information received by the image display device. Also, in reproducing the recording medium of the recording medium reproducing apparatus connected to the image display device, the reproduction language can be selected.  
         [0073]     It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention. Thus, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.