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

Inactive Publication Date: 2011-06-07
LG ELECTRONICS INC
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AI-Extracted Technical Summary

Problems solved by technology

As a result, ROM(s)having larger memory capacity must be us...
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Method used

[0065]As explained in detail above, the character display apparatus and method for a digital versatile disc (DVD) player according to the present invention record font data of at least some of multi-languages to be used in multilingual subtitle processing on certain area(s) of a disc, store the font data into a memory at initial ...
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Benefits of technology

[0011]To solve the above problem with the conventional character display system, an object of the present invention is to provide a characte...
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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.

Application Domain

Technology Topic

DVD playerMultiple language +9

Image

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

Examples

  • Experimental program(1)

Example

[0042]FIG. 2 is a block diagram of an embodiment of the character display apparatus for a DVD player according to the present invention As shown, the character display apparatus for a DVD player according to the embodiment of the present invention is provided with a pickup 202 which detects recorded data including font data of at least some of multi-languages to be used in multilingual subtitle processing from a disc 201; a high frequency processing section 203 for processing output signals of the pickup 202 and outputting video data signals; a data separation section 204 for separating the font data from output signals of the high frequency processing section 203; a font RAM 205 for storing output data of the data separation section 204; a font ROM 206 for storing predetermined font data; a character generation section 207 for receiving the output data from the font RAM 205 and the output data from the font ROM 206, and outputting character signals; and a controllor 208 for controlling operations of the high frequency processing section 203, the font data separation section 204, the character generation section 207, the font RAM 205, and the font ROM 206.
[0043]The operation of the present invention constructed as above will be explained hereinafter.
[0044]First, when the disc 201 is inserted, the pickup 202 picks up a recording surface of the disc 201 including a predetermined area or predetermined areas on which the font data are recorded, and outputs the detected video management information to the high frequency processing section 203.
[0045]Then, when the high frequency processing section 203 processes the deteced signals of the pickup 202 and outputs video signals, the controller 208 determines whether font data are on the disc 201.
[0046]Here, information stored on the disc 201 is comprised of Video Managing Information(VMGI), Video Title Section (VTS#1˜VTS#n) and font data, as shown in FIG. 3.
[0047]At this time, Video Managing Information (VMGI) has information concerning the existence, position and size of the recorded font data.
[0048]Accordingly, if font data are recorded on the disc 201, controller 208 controls the servo (not shown) so as to move the pickup 202 to the position where the font data are recorded.
[0049]Then, when the pickup 202 plays back the font data recorded on the disc 201, the high frequency processing section 203 processes the reproduced font data and outputs video signals, and the data separation section 204 separates the font data from the output signals of the high frequency processing section 203 and stores the separated font data into the font RAM 205.
[0050]After this, when the storing of the recorded font data into the font RAM 205 is completed, the controller 208 controls the servo (not shown) so as to move the pickup 202 to the initial playback position.
[0051]Accordingly, when the pickup 202 detects data recorded on the disc 201, output signals of the high frequency processing section 203 which processes the detected data are signal-processed in a predetermined way to play back titles, and the controller 208 under playback determines whether input of the menu keys has been made.
[0052]At this time, when there has been input of menu keys, the controller 208 determines whether font data corresponding to the input are on the disc 201.
[0053]Accordingly, when corresponding font data are on the disc 201, the character generation section 207 controlled by the controller 208 reads data stored in the font RAM 205 and outputs character signals thereby displaying menu on a screen.
[0054]On the other hand, when corresponding font data are not recorded on the disc 201, the character generation section 207 controlled by controller 208 reads data stored in the font ROM 206 and outputs character signals thereby displaying menu on the screen.
[0055]The above operation will be explained with reference to the flow chart shown in FIG. 4.
[0056]Namely, when the disc 201 is inserted at step S10, Video Managing Information (VMGI) recorded at certain area is read at step S12 and it is determined at step S11 whether font data are recorded on the disc 201.
[0057]Then, if font data are recorded on the disc 201, the pickup 202 is jumped to the position where the font data are recorded so as to detect the font data recorded on the disc 201 at step S13.
[0058]Accordingly, when the high frequency processing section 203 processes output signals of the pickup 202 and outputs video signals, the font data separation section 204 separates the font data from the output video signals and store the separated font data into the font RAM 205 at step S14.
[0059]Thereafter, when it is determined at step S12 that font data is not recorded on the disc 201, or the storing of the font data into the font RAM 205 is completed at step S15, the pickup 202 is moved to the initial playback position designated by Video Managing Information (VMGI), and plays back a title at step S16.
[0060]At this time, if input of the menu keys is made at step S17, it is determined at step S18 whether font data corresponding to the language selected by a user exist on the disc 201 so as to determine whether the font RAM 205 or the font ROM 206 is to be used as a source for the font data of the language selected by the user.
[0061]Accordingly, when the corresponding font data are on the disc 201 at step S18, the control flow goes to step S19, and then the character generation section 207 uses the font data stored on the font RAM 205 to output character signals thereby displaying subtitle in the selected language on a screen at step S19.
[0062]Otherwise, the control flow goes to step S20, and then the character generation section 207 uses the font data stored on the font ROM 206 to output character signals thereby displaying subtitle in the selected language on a screen at step S20.
[0063]According to the above embodiment of the present invention, it is provided that font data of at least some of the multi-languages to be used in multilingual subtitle processing, for example, rarely used font data are recorded (preformatted) on a disc, and then, stored into a font RAM, the font data of a language selected by a user are used from the font RAM thereby subtitle in the desired language (character) is being displayed on playback.
[0064]However, according to the present invention, it is also possible to record(format) font data corresponding to all languages on certain areas of a disc, to store the font data into a font RAM, to read the font of a language selected by a user from the font RAM and to display subtitle in the desired language (character). In this case, the font ROM 206 in FIG. 2 is not necessary.
[0065]As explained in detail above, the character display apparatus and method for a digital versatile disc (DVD) player according to the present invention record font data of at least some of multi-languages to be used in multilingual subtitle processing on certain area(s) of a disc, store the font data into a memory at initial stage of playback, read the stored font data corresponding to a language selected by selection input of a user and display character signals of the selected language for subtitle processing. Thus, the manufacturing cost can be reduced due to reduction of memory capacity requied and further DVDs can be maximum efficiently utilized.
[0066]As will be evident to those skilled in the art, various modifications of this invention can be made or followed in light of the foregoing disclosure without departing from the spirit of the disclosure or from the scope of the claims.
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Description & Claims & Application Information

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