Apparatus and method for an additional contents display of an optical disc player

Abstract

This invention relates to a character display apparatus and method for a DVD (Digital Versatile Disc) player. According to the present invention, it is provided that font data of at least some of multi-languages to be used in multilingual subtitle processing are recorded on certain area(s) of a DVD, the recorded font data are stored in a font memory at initial stage of playback, the stored font data corresponding to a language selected by selection input of a user are then read, characters for subtitle processing of the selected language are displayed. Therefore, the manufacturing cost of DVD players can be reduced due to the reduction of memory capacity requied and DVDs can be maximum efficiently utilized.

What is claimed is: 
     
       1. A character display apparatus for an optical disc player, comprising:
 a detection and separation unit to detect recorded data including a font data from said optical disc, and to separate said font data from the recorded data detected;   a memory to store the font data output from said detection and separation unit;   a character generation unit to generate character signals of characters of a selected language for a subtitle by using the font data stored in said memory; and   a controller coupled to the character generation unit, to cause the character generation unit to generate character signals of a language for subtitle processing selected from multi-languages to be used in multilingual character subtitle processing on the basis of font data, at least some of which are recorded in the optical disc.   
     
     
       2. The character display apparatus according to  claim 1 , wherein said detection and separation unit comprises:
 a pickup to detect the recorded data including said font data from said optical disc, and to output the recorded data detected as output signals;   a high frequency processing unit to process the output signals of said pickup, and to output video data signals; and   a data separation unit to separate said font data from the output video data signals of said high frequency processing unit, and to output the separated font data,   wherein said controller controls said high frequency processing unit, said data separation unit, said first memory and said character generation unit.   
     
     
       3. The character display apparatus according to  claim 1 ,
 wherein said character display apparatus further comprises a second memory for storing font data of predetermined languages, and   wherein said controller controls said character generation unit to output character signals of characters of the selected language for subtitle processing by using the font data of the selected language from said second memory if the font data of the selected language are not on said optical disc.   
     
     
       4. A character display method for an optical disc player, comprising:
 detecting recorded data including a font data recorded in said optical disc, and outputting said recorded data detected as output signals;   processing the output signals, and outputting video signals;   separating said font data from the video signals, and outputting the font data separated;   storing the font data in a first memory; and   outputting the character signals of a selected language for subtitle processing by using the font data stored in said first memory.   
     
     
       5. The character display method according to  claim 4 ,
 wherein said player further comprises a second memory for storing font data of predetermined languages, and   wherein said step of outputting the character signals of the selected language for subtitle processing includes outputting the character signals by using the font data of the selected language from said second memory if the font data of the selected language are not on said optical disc.   
     
     
       6. A character display method for an optical disc player, comprising:
 determining whether font data of at least some of multi-languages to be used in multilingual subtitle processing are recorded in an optical disc;   storing the font data of at least some of the multi-languages in a first memory, if the font data of characters of languages for multilingual subtitle processing are stored in said optical disc; and   outputting character signals of a selected language for subtitle processing according to the font data stored in said first memory when one of said multi-languages is selected, and outputting the character signals by using the font data of the selected language from a second memory if the font data of the selected language are not recorded in said disc.   
     
     
       7. A character display apparatus for an optical disc player, comprising:
 a data separator to separate font data to be used in multilingual subtitle processing from a predetermined area of an optical disc;   a first memory to store the separated font data;   a second memory to store predetermined font data to be used in multilingual subtitle processing;   a character generator to generate character signals of a language for the subtitle processing from stored font data; and   a controller to cause the character generator to generate character signals from the font data stored in the first or second memory, based on a selected language, thereby outputting character signals of a language for subtitle processing selected from multi-languages to be used in multilingual character subtitle processing on the basis of font data, at least some of which are recorded in the optical disc.   
     
     
       8. The character display apparatus according to  claim 7 , wherein the first memory is a random access memory and the second memory is a read only memory. 
     
     
       9. A character display method for an optical disc player, comprising:
 selecting a language for subtitle processing from multi-languages;   separating font data from other data read from a disc;   storing the separated font data in a first memory; and   generating character signals from the stored font data or from predetermined font data stored in a second memory, thereby outputting character signals of a language for subtitle processing selected from multi-languages to be used in multilingual character subtitle processing on the basis of font data, at least some of which are recorded in the optical disc.   
     
     
       10. The character display apparatus according to  claim 9 , wherein said generating step includes generating the character signals from the predetermined font data if the selected language does not correspond to the stored font data in the first memory. 
     
     
       11. A system for generating character signals for a language of a subtitle recorded in an optical disc, said optical disc including at least a predetermined area on which a font data for generating character signals to be used in multilingual subtitle processing are located, comprising:
 an optical pickup to read recorded data including the font data to be used in multilingual subtitle processing;   a data processor to process the font data read from the optical pickup;   a first memory to store the font data;   a second memory to store predetermined font data to be used in multilingual subtitle processing;   a character generator to generate character signals of a language for the subtitle processing from stored font data; and   a controller to cause the character generator to generate character signals from the font data stored in the first or second memory, based on a selected language, thereby outputting character signals of a language for subtitle processing selected from multi-languages to be used in multilingual character subtitle processing on the basis of font data, at least some of which are recorded in the optical disc.   
     
     
       12. A non-transitory optical recording medium, comprising:
 a first area to store managing information for managing video data;   a second area to store a video title including video data; and   a third area to store additional contents associated with the video title,   wherein when a multimedia player reads the non-transitory optical recording medium, the multimedia player detects if the additional contents data includes first font data, and if the additional contents includes the first font data, stores the first font data in a first storage of the multimedia player, and generates character data of specific presentation data to be presented while the video data is played on the multimedia player to have a font defined by the first font data, and if the additional contents data does not include the first font data, generates the character data of the specific presentation data to be presented while the video data is played to have a font defined by a second font data stored in a second storage of the multimedia player, and   wherein the first and second font data are different than the character data of the specific presentation data.    
     
     
       13. A multimedia player, comprising:
 a detector configured to detect additional contents data associated with a main title including video data from an additional contents data source, and to detect if said additional contents data includes first font data;   a first storage configured to store said detected additional contents data;   a second storage configured to store second font data that is separate from the first font data; and   a controller configured to, if the detector detects the additional contents includes the first font data, store the first font data in the first storage, generate character data of specific presentation data to be presented while the video data is played on the multimedia player to have a font defined by the first font data, and if the detector detects the additional contents data does not include the first font data, generate the character data of the specific presentation data to be presented while the video data is played to have a font defined by a second font data stored in the second storage of the multimedia player, and   wherein the first and second font data are different than the character data of the specific presentation data.    
     
     
       14. The multimedia player according to claim 13, wherein said additional contents data source includes an optical recordable medium.  
     
     
       15. A method of controlling a multimedia player, the method comprising:
 detecting, via a detector of the multimedia player, additional contents data associated with a main title including video data from an additional contents data source;   detecting, via the detector, if said additional contents data includes first font data;   storing, in a first storage of the multimedia player, said detected additional contents data;   storing, in a second storage of the multimedia player, second font data that is separate from the first font data;   if the detecting step detects the additional contents includes the first font data, storing the first font data in the first storage, and generating character data of specific presentation data to be presented while the video data is played on the multimedia player to have a font defined by the first font data; and   if the detecting step detects the additional contents data does not include the first font data, generating the character data of the specific presentation data to be presented while the video data is played to have a font defined by a second font data stored in a second storage of the multimedia player,   wherein the first and second font data are different than the character data of the specific presentation data.    
     
     
       16. The method according to claim 15, wherein said first storage is a random access memory.  
     
     
       17. The method according to claim 15, wherein said generating step generates character signals for displaying a selected language based on the first or second font data.