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Recording medium and method and apparatus for reproducing and recording text subtitle streamsRelated Patent Categories: Television Signal Processing For Dynamic Recording Or Reproducing, Processing Of Television Signal For Dynamic Recording Or Reproducing, Having Another SignalRecording medium and method and apparatus for reproducing and recording text subtitle streams description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070122119, Recording medium and method and apparatus for reproducing and recording text subtitle streams. Brief Patent Description - Full Patent Description - Patent Application Claims
DOMESTIC PRIORITY INFORMATION [0001] This is a continuation application of application Ser. No. 11/062,792 filed Feb. 23, 2005, the entire contents of which are hereby incorporated by reference. FOREIGN PRIORITY INFOMRATION [0002] This application claims the benefit of the Korean Patent Application No. 10-2004-0013098, filed on Feb. 26, 2004, and No. 10-2004-0018091, filed on Mar. 17, 2004, which are hereby incorporated by reference as if fully set forth herein. BACKGROUND OF THE INVENTION [0003] 1. Field of the Invention [0004] The present invention relates to a recording medium, and more particularly, to a recording medium and method and apparatus for reproducing and recording text subtitle streams. Although the present invention is suitable for a wide scope of applications, it is particularly suitable for recording the text subtitle stream file within the recording medium and effectively reproducing the recorded text subtitle stream. [0005] 2. Discussion of the Related Art [0006] 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 optical recording medium (hereinafter referred to as "HD-DVD"), such as a Blu-ray Disc (hereafter referred to as "BD"), is under development for writing and storing high definition video and audio data. Currently, global standard technical specifications of the Blu-ray Disc (BD), which is known to be the next generation technology, are under establishment as a next generation optical recording solution that is able to have a data significantly surpassing the conventional DVD, along with many other digital apparatuses. [0007] 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. [0008] However, in the present Blu-ray Disc (BD) standards, since the standards of the supplementary data, particularly the subtitle stream file, 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 [0009] The present invention relates to a recording medium. [0010] In one embodiment, a data structure recorded on the recording medium includes a text subtitle stream including one or more presentation segments. Each of the presentation segments specifies its own presentation start and end times. An initial value of a system time clock of the text subtitle stream is a presentation start time of the first presentation segment in the text subtitle stream. [0011] For example, the presentation start and end times may be defined on the system time clock. [0012] In one embodiment, each of the presentation segments contains at least one region of dialog text. [0013] In another embodiment, the recording medium further includes a clip information file corresponding to the text subtitle stream. The clip information file includes a data field indicating a source packet number of a source packet where a STC-sequence starts. The STC-sequence represents a sequence of source packets where the system time clock is continuous. [0014] The present invention also relates to a method of reproducing data recorded on a recording medium. [0015] In one embodiment, the method includes reading a text subtitle stream including one or more presentation segments from the recording medium. Each of the presentation segments specifies its own presentation start and end times. An initial value of a system time clock of the text subtitle stream is set to a presentation start time of the first presentation segment in the text subtitle stream. [0016] The present invention further relates to an apparatus for reproducing data recorded on a recording medium. [0017] In one embodiment, the apparatus includes a controller controlling a text subtitle stream including one or more presentation segments to be read from the recording medium. Each of the presentation segments specifies its own presentation start and end times, and the controller sets an initial value of the system time clock to a presentation start time of the first presentation segment in the text subtitle stream. [0018] The present invention may also relate to methods and apparatuses for creating a text subtitle stream. [0019] Still further, the present invention may relate to methods and apparatuses for recording data on a recording medium. BRIEF DESCRIPTION OF THE DRAWINGS Continue reading about Recording medium and method and apparatus for reproducing and recording text subtitle streams... Full patent description for Recording medium and method and apparatus for reproducing and recording text subtitle streams Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Recording medium and method and apparatus for reproducing and recording text subtitle streams patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Recording medium and method and apparatus for reproducing and recording text subtitle streams or other areas of interest. ### Previous Patent Application: Recording apparatus for initializing recording media Next Patent Application: Recording medium containing supplementary service information for audio/video contents, and method and apparatus of providing supplementary service information of the recording medium Industry Class: Television signal processing for dynamic recording or reproducing ### FreshPatents.com Support Thank you for viewing the Recording medium and method and apparatus for reproducing and recording text subtitle streams patent info. IP-related news and info Results in 0.11528 seconds Other interesting Feshpatents.com categories: Daimler Chrysler , DirecTV , Exxonmobil Chemical Company , Goodyear , Intel , Kyocera Wireless , 174 |
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