Method of managing lyric data of audio data recorded on a rewritable recording medium

Abstract

The present invention relates to a lyric data managing method that records lyrics associated with recorded audio data in a file separated from audio data management information called RTR_AMG (Real Time Record Audio Management) allocated for reproduction control in a rewritable recording medium, and that searches for a lyric unit written in the separate file prior to reproducing recorded audio data. The present method records lyric data of audio data recorded on a rewritable recording medium in a file separated from management information for the recorded audio data, and records search information to point to respective lyric data in the management information. Thus, the size of the management information is not increased even though lyrics of more than 1,000 audio files are recorded on a rewritable disk. As a result, system requirement of a disk device is alleviated to manage recorded audio data.

1 . A method for reproducing a text subtitle stream, the method comprising:
 reproducing the text subtitle stream to be presented with main data, the text subtitle stream being separated from the main data; and   presenting a navigation information file including first navigation information for accessing the main data and second navigation information for accessing the text subtitle stream, the navigation information file being separated from the main data and the text subtitle stream,   wherein if the text subtitle stream includes a plurality of individual text sub data units, the second navigation information refers to the plurality of individual text sub data units during a same interval, and   wherein the plurality of individual text sub data units have different language codes.   
   
   
       2 . The method of  claim 1 , wherein the second navigation information includes a start point field indicating a start of reproduction of the text subtitle stream. 
   
   
       3 . The method of  claim 1 , wherein the navigation information file includes a language information field specifying a language code of the text subtitle stream. 
   
   
       4 . The method of  claim 1 , wherein the plurality of text sub data units is preloaded into a memory and one of the plurality of text sub data units is displayed with the main data. 
   
   
       5 . The method of  claim 4 , wherein the plurality of text sub data units is preloaded into a memory before starting presenting with the main data and processed based on attribute information which includes language information regarding a font of the text sub data units. 
   
   
       6 . The method of  claim 1 , wherein the navigation information file includes an index number of the text sub data units. 
   
   
       7 . The method of  claim 1 , wherein the navigation information file includes coding information for the main data and for text data including the text subtitle stream, and the method further comprises processing the text data based on the coding information. 
   
   
       8 . An apparatus for reproducing a text subtitle stream, the apparatus comprising:
 a pickup configured to reproduce data recorded on a recording medium; and   a controller configured to control the pickup to reproduce the text subtitle stream with main data, the text subtitle stream being separated from the main data, and to present a navigation information file including first navigation information for accessing the main data and second navigation information for accessing the text subtitle stream, the navigation information file being separated from the main data and the text subtitle stream,   wherein if the text subtitle stream includes a plurality of individual text sub data units, the second navigation information refers to the plurality of individual text sub data units during a same interval, and   wherein the plurality of individual text sub data units have different language codes.   
   
   
       9 . The apparatus of  claim 8 , wherein the second navigation information includes a start point field indicating a start of reproduction of the text subtitle stream. 
   
   
       10 . The apparatus of  claim 8 , wherein the navigation information file includes a language information field specifying a language code of the text subtitle stream. 
   
   
       11 . The apparatus of  claim 8 , wherein the controller is configured to control the plurality of text sub data units to be preloaded into a memory and one of the plurality of text sub data units to be displayed with the main data. 
   
   
       12 . The apparatus of  claim 11 , wherein the controller is configured to control the plurality of text sub data units to be preloaded into a memory before starting presenting with the main data and to be processed based on attribute information which includes language information regarding font of the text sub data units. 
   
   
       13 . The apparatus of  claim 8 , wherein the navigation information file includes an index number of the text sub data units. 
   
   
       14 . The apparatus of  claim 8 , wherein the navigation information file includes coding information for the main data and for text data including the text subtitle stream, and the controller is configured to control processing of the text data based on the coding information.