| Method and apparatus for decoding and reproducing text subtitle streams -> Monitor Keywords |
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Method and apparatus for decoding and reproducing text subtitle streamsRelated Patent Categories: Data Processing: Presentation Processing Of Document, Operator Interface Processing, And Screen Saver Display Processing, Presentation Processing Of DocumentMethod and apparatus for decoding and reproducing text subtitle streams description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070277086, Method and apparatus for decoding and reproducing text subtitle streams. Brief Patent Description - Full Patent Description - Patent Application Claims
FOREIGN PRIORITY INFORMATION [0001] This application claims the benefit of Korean Patent Application No. 10-2004-0017935, filed on Mar. 17, 2004, which is hereby incorporated by reference. DOMESTIC PRIORITY INFORMATION [0002] This is a continuation application of application Ser. No. 11/033,109 filed Jan. 12, 2005, the entire contents of which are hereby incorporated by reference. [0003] This application also claims the benefit of priority under 35 U.S.C. .sctn.119(e) on U.S. Provisional Application No. 60/542,852, filed on Feb. 10, 2004, U.S. Provisional Application No. 60/542,850, filed on Feb. 10, 2004, U.S. Provisional Application No. 60/543,328, filed on Feb. 11, 2004; and U.S. Provisional Application No. 60/544,234, filed on Feb. 13, 2004, the entire contents of which are hereby incorporated by reference as if fully set forth herein. BACKGROUND OF THE INVENTION [0004] 1. Field of the Invention [0005] The present invention relates to a recording medium and a method and apparatus for decoding a text subtitle stream recorded on a recording medium. [0006] 2. Discussion of the Related Art [0007] Optical discs are widely used as an optical recording medium for recording mass data. Presently, among a wide range of optical discs, a new high-density digital video disc (hereinafter referred to as "HD-DVD"), such as a Blu-ray Disc (hereafter referred to as "BD"), is under development for recording high definition video and audio data. Currently, global standard technical specifications of BDs, which are known to be the next generation HD-DVD technology, are under establishment as a next generation optical recording solution that is able to have data significantly surpassing the conventional DVD, along with many other digital apparatuses. [0008] Accordingly, optical reproducing apparatuses having the Blu-ray Disc (BD) standards applied thereto are also being developed. However, since the Blu-ray Disc (BD) standards are yet to be completed, there have been many difficulties in developing a complete optical reproducing apparatus. Particularly, in order to effectively reproduce the data from the Blu-ray Disc (BD), not only should the main AV data as well as various data required for a user's convenience, such as subtitle information as the supplementary data related to the main AV data, be provided, but also managing information for reproducing the main data and the subtitle data recorded in the optical disc should be systemized and provided. [0009] However, in the present Blu-ray Disc (BD) standards, since the standards of the supplementary data, particularly the subtitle information, are not completely consolidated, there are many restrictions in the full-scale development of a Blu-ray Disc (BD) basis optical reproducing apparatus. And, such restrictions cause problems in providing the supplementary data such as subtitles to the user. SUMMARY OF THE INVENTION [0010] The present invention relates to a method and apparatus for recording/reproducing a text subtitle stream. [0011] In one embodiment, the method for reproducing at least one text subtitle stream includes receiving at least one text subtitle stream from an external source. Each text subtitle stream including a style segment defining at least one region style and at least one presentation segment. Each presentation segment containing at least one region of text and being linked to at least one region style. The style segment including a player style flag which indicates whether a player is permitted to generate its own player style. Thereafter, the method calls for decoding the text subtitle stream using the style segment defining at least one region style and a player style flag. [0012] In one embodiment, the invention relates to a method for recording at least one text subtitle stream. The method includes receiving at least one text subtitle stream from an external source. Each text subtitle stream including a style segment defining at least one region style and at least one presentation segment. Each presentation segment containing at least one region of text and being linked to at least one region style. The style segment including a player style flag which indicates whether a player is permitted to generate its own player style. Thereafter, the method calls for recording the received text subtitle stream on a recording medium. [0013] In one embodiment, the invention relates to an apparatus for decoding at least one text subtitle stream. The apparatus having a receiver configured to receive the text subtitle from an external source. A decoder configured to decode at least one text subtitle stream from an external source. Each text subtitle stream including a style segment defining at least one region style and at least one presentation segment. Each presentation segment containing at least one region of text and being linked to at least one region style. The style segment having a player style flag which indicates whether a player is permitted to generate its own player styles. The apparatus also has a controller configured to control operation of the decoder to receive the text subtitle stream from the receiver and to decode the text subtitle stream using the style segment defining the region style and the player style flag. [0014] 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 [0015] 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; [0016] FIG. 1 illustrates a file structure of data files recorded on an optical disc according to an example of the present invention; [0017] FIG. 2 illustrates data storage areas of an optical disc according to an example of the present invention; [0018] FIG. 3 illustrates a text subtitle and a main image presented on a display screen when a text subtitle stream and a main AV stream are reproduced; [0019] FIG. 4 is a schematic diagram illustrating reproduction control of a main AV clip and text subtitle clips by a PlayList; Continue reading about Method and apparatus for decoding and reproducing text subtitle streams... 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