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.A character display apparatus for an optical disc player, and which includes a detection and separation unit to detect recorded data including a first font data from an optical disc, and to separate the first font data from the detected recorded data, a memory to store the first font data output from the detection and separation unit, a character generation unit to generate character signals for characters of a selected language for a subtitle by using the first font data stored in the memory, and a controller coupled to the character generation unit, to cause the character generation unit to generate the character signals for the characters of the selected language for character subtitle processing selected from multiple languages to be used in the character subtitle processing on the basis of the first font data. Further, the first font data is downloaded from the optical disc and stored in the memory such that the stored first font data is separate from the characters of the selected language before the character generation unit generates the characters of the selected language.

1. A character display apparatus for an optical disc player, the apparatus comprising:
 a detection and separation unit to detect if recorded data on an optical disc includes including a first font data from said optical disc, and to separate said first font data from the detected recorded data detected if the first font data is recorded on the optical disc; 
 a first memory area to store the first  font data separated and output from said detection and separation unit; 
 a second memory area to store a second font data, wherein the first and second memory areas are separated from one another; 
 a character generation unit to selectively  generate character signals of for characters of a selected language for a subtitle by using  to have a font defined by the first font data stored in said memory if the first font data recorded on the optical disc is selected and to have a font defined by the second font data if the second font data stored in the second memory is selected; and 
 a controller coupled to the character generation unit, to cause the character generation unit to selectively generate the character signals of a language for the characters of the selected language for character subtitle processing selected from multiple languages multi-languages to be used in the character subtitle processing in multilingual character subtitle processing on the basis of font data, at least some of which are recorded in the optical disc, 
 wherein the first and second font data are separate from the characters of the selected language before the character generation unit generates the character signals of the selected language. 
 
     
     
       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 first font data from said optical disc, and to output the detected 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 first font data from the output video data signals of said high frequency processing unit, and to output the separated first font data, 
 wherein said controller controls said high frequency processing unit, said data separation unit, said 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 method of controlling an optical disc player, the method comprising:
 detecting if recorded data including a on an optical disc includes a first font data recorded in said optical disc, and outputting said recorded data detected as output signals; 
 processing the output signals, recorded data and outputting video output signals including video data and the first font data; 
 separating said first font data from the video output signals, and outputting the separated first font data separated, if the first font data exists on the optical disc; 
 storing the separated first font data in a first memory area, a second font data being stored in a second memory area, wherein the first and second memory areas are separated from one another; and 
 selectively generating, via a character generation device, character signals for characters of a selected language for a subtitle to have a font defined by the first font data if the first font data on the disc is selected and to have a font defined by the second font data if the second font data stored in the second memory area is selected; and 
 outputting the said character signals of the characters for a the selected language for character subtitle processing by using the font data stored in said first memory, 
 wherein the first and second font data are separate from the characters of the selected language before the outputting step outputs the character signals of the selected language. 
 
     
     
       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 of controlling an optical disc player, the method comprising:
 determiningdetecting whether a first font data corresponding to of at least some of multi-languages multiple languages to be used in multilingual character subtitle processing is recorded in an optical disc; 
 separating the first font data from the detected recorded data if the first font data is recorded on the optical disc; 
 storing the separated first font data of at least some of the multi-languages in a first memory area,if the first font data corresponding to of characters of languages for multilingual the character subtitle processing are stored in is recorded on said optical disc, a second font data being stored in a second memory area, wherein the first and second memory areas are separated from one another; and 
 selectively outputting character signals for characters of a selected language for the character subtitle processing according to the font data stored in the first memory when one of said multiple languages 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 to have a font defined by the first font data if the first font data recorded on the optical disc is selected and to have a font defined by the second font data if the second font data stored in the second memory area is selected, 
 wherein the first and second font data are separate from the characters of the selected language before the outputting step outputs the character signals of the selected language. 
 
     
     
       7. A character display apparatus for an optical disc player, the apparatus comprising:
 a detector to detect whether a first font data to be used in character subtitle processing is recorded on a predetermined area of an optical disc; 
 a data separator to separate said first font data to be used in multilingual subtitle processing from a predetermined area of an from recorded data including video data and the first font data on the optical disc when the detector detects the first font data is recorded on the optical disc; 
 a first memory area to store the separated first font data; 
 a second memory area to store predetermined a second font data to be used in the character multilingual subtitle processing, wherein the first and second memory areas are separated from one another; 
 a character generator to generate character signals for characters of a selected language for the character subtitle processing from the first or second stored font data; and 
 a controller to cause the character generator to selectively generate the character signals for the characters of the selected language for the character subtitle processing to have a font defined by the first font data if the first font data recorded on the optical disc is selected and to have a font defined by the second font data if the second font stored in the second memory area is selected 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, 
 wherein the first and second font data are separate from the characters of the selected language before the outputting step outputs the characters of the selected language. 
 
     
     
       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 of controlling an optical disc player, the method comprising:
 selecting a language for character subtitle processing from multi-languages multiple languages; 
 detecting if a first font data is recorded on a disc; 
 separating said first font data from other data read from a the disc if the first font data is recorded on the disc; 
 storing the separated first font data in a first memory area, a second font data being stored in a second memory area, wherein the first and second memory areas are separated from one another; and 
 selectively generating character signals from the stored font data or from predetermined font data stored in a second memory, thereby outputting character signals of afor characters of the selected language for subtitle processing selected from multi-languages to be used in the multilingual character subtitle processing to have a font defined by the first font data if the first font data recorded on the optical disc is selected and to have a font defined by the second font data if the second font data stored in the second memory area is selected on the basis of font data, at least some of which are recorded in the optical disc, 
 wherein the first and second font data are separate from the characters of the selected language before the generating step outputs the character signals of the selected language. 
 
     
     
       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 selected 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, the system comprising:
 an optical pickup to read recorded data including the font data to be used in the multilingual subtitle processing on the optical disc; 
 a data processor to detect if the recorded data includes first font data to be used in the character subtitle processing and to process the first font data, and to separate the first font data from the detected recorded data if the first font data is recorded on the optical disc read from the optical pickup; 
 a first memory area to store the separated first font data; 
 a second memory area to store predetermined a second font data to be used in the character multilingual subtitle processing, wherein the first and second memory areas are separated from one another; 
 a character generator to generate the character signals for characters of the selected of a language for the character subtitle processing from the first or second stored font data; and 
 a controller to cause the character generator to selectively generate the character signals for the characters of the selected language to have a font defined by the first font data if the first font data recorded on the optical disc is selected and to have a font defined by the second font data if the second font data stored in the second memory area is selected 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 subtitle processing on the basis of font data, at least some of which are recorded in the optical disc, 
 wherein the first and second font data are separate from the characters of the selected language before the controller outputs the character signals of the selected language. 
 
     
     
       12. An apparatus for an additional contents display of an optical disc player, the apparatus comprising:
 a detector to detect additional contents data associated with a main title of an optical disc, to detect if the additional contents data include a first font data, and to separate the first font data from the detected additional contents data if the additional contents data includes the first font data;   a first memory area to store said additional contents data;   a second memory area to store a second font data , wherein the first and second memory areas are separated from one another;   a processor to process said additional contents data stored in said first memory to generate specific presentation data; and   a controller to control the processor to selectively process said additional contents data to display a specific content associated with said main title by using said specific presentation data and to have a font defined by the first font data if the  first font data on the optical disc is selected and to have a font defined by the second font data if the second font data stored in the second memory area is selected,   wherein the first and second font data are different than character data of the specific presentation data.   
     
     
       13. The apparatus according to claim 12, wherein said first memory is a random access memory. 
     
     
       14. The apparatus according to claim 12, wherein said second font data is stored in a second memory, the second memory being a read only memory. 
     
     
       15. The apparatus according to claim 12, wherein said processor is a character generator to generate character signals for characters for displaying a selected language on the basis of said first or second font data. 
     
     
       16. A method for an additional contents display of an optical disc player, the method comprising:
 detecting additional contents data associated with a main title of an optical disc, and detecting if the additional contents data include a first font data;   separating the first font data from the detected additional contents data if the additional contents data includes the first font data;   storing said additional contents data in a first memory area, a second font data being stored in a second memory area, wherein the first and second memory areas are separated from one another;   processing said stored additional contents data to selectively generate specific presentation data to have a font defined by the first font data if the first font data on the optical disc is selected and to have a font defined by the second fond data stored in the second memory area is selected; and   outputting the specific presentation data for displaying a specific content associated with said main title by using said specific presentation data,   wherein the first and second font data are different than character data of the specific presentation data.   
     
     
       17. The method according to claim 16, wherein said first memory is a random access memory. 
     
     
       18. The method according to claim 16, wherein said second font is stored in a second memory, said second memory being a read only memory. 
     
     
       19. The method according to claim 16, wherein said processing is performed to generate character signals for characters for displaying a selected language on the basis of said first or second font data. 
     
     
       20. The method according to claim 16, further comprising:
 reproducing video management information from the optical disc,   wherein the video management information includes information indicating whether or not the first font data is recorded on the optical disc.   
     
     
       21. The method according to claim 16, wherein the video management information further includes information on a location of the first font data on the optical disc. 
     
     
       22. The apparatus according to claim 12, further comprising:
 a pickup unit to reproduce video management information from the optical disc, the video management information including information indicating whether or not the first font data is recorded on the optical disc.   
     
     
       23. The apparatus according to claim 12, wherein the video management information further includes information on a location of the first font data on the optical disc. 
     
     
       24. The apparatus according to claim 12, wherein said specific presentation data is text subtitle for the main title. 
     
     
       25. The method according to claim 16, wherein said specific presentation data is text subtitle for the main title.