Abstract: The present invention relates to method and apparatus of recording a multi-channel data stream on a recording medium in such a manner that substreams of digital channels constituting the multi-channel data stream can be distinguished each other in reproduction. The present recording method separates a multi-channel stream composed of substreams belonging to a plurality of channels into individual substreams, records the individual substreams separately by channel in plural stream objects allocated in a recording medium, creates a piece of search information every a substream contained in the recorded multi-channel stream, and records the created plural pieces of search information on the recording medium. The present method makes it possible to selectively search and reproduce each substream among a multi-channel stream recorded on a recording medium, thereby improving use convenience of a recording machine such as a digital video recorder.

Abstract: A method for reproducing data recorded on an interactive recording medium in conjunction with associated auxiliary data is disclosed. An interactive recording medium reproducing apparatus reproduces A/V data recorded on an interactive recording medium such as an interactive DVD in conjunction with contents data provided by a contents providing server using navigation information for the contents data also provided by the contents providing server, thereby allowing synchronized reproduction of data from different sources.

Abstract: In accordance with one embodiment of the invention, a recording medium comprises a first recording area for recording data streams of a title domain and menu domain, said title domain comprising a plurality of titles, and a second recording area for recording navigation information for control of reproduction of the data streams, wherein the navigation information in the second recording area comprises playback control information for designating a location in the title domain to be resumed.

Abstract: The present invention relates to a data structure for managing video data and additional content data recorded on a recording medium. A recording medium having the data structure for managing video and its additional content data in accordance with the present invention comprises: a navigation area storing at least one navigation file, the navigation file including at least one navigation command group, at least one navigation command group including at least one navigation command for managing reproduction of additional content data to be reproduced with main data recorded on the recording medium, at least one command group indicating at least one playlist to reproduce, the at least one playlist including reproducing information related with the additional content data.

Abstract: A method and apparatus for reproducing data is disclosed. The method and apparatus configures a composite file structure to simultaneously reproduce data recorded in a recording medium and other data recorded in a local storage, and reproduces data using the configured composite file structure. A variety of methods for configuring the composite file structure are described in preferred embodiments, such that a method for effectively configuring the composite file structure regardless of a current condition state is given. Therefore, data recorded in the recording medium and other data stored in the local storage can be effectively used.

Abstract: The present invention relates to method and apparatus of providing supplementary service information for A/V contents written in a recording medium. This method has a recording medium containing Presentation Language data, which have to be included like as in a digital television signal for supplementary service information in accordance with Advanced TV Enhancement Forum or Digital TV Application Software Environment standard, and reproduces, if a disk reproduction is requested, the Presentation Language data as well as requested A/V data and provides them for a connected external device such as a digital television. As a result, various video information and functions provided with Presentation Language data by a recording medium can be realized at a digital television set being able to accept Presentation Language data.

Abstract: A recording medium, and a method and apparatus for reproducing data from the recording medium are disclosed. The recording medium includes a record area in which at least one first title and at least one second title having different attributes are recorded, and a reproduction management area for reproducing individual titles having different attributes. A static scenario and a dynamic scenario are recorded in the reproduction management area, wherein the static scenario is commonly applied to the first and second titles, and wherein the dynamic scenario is contained in each of the first and second titles.

Abstract: A method for reproducing data recorded on an interactive recording medium in conjunction with associated auxiliary data is disclosed. An interactive recording medium reproducing apparatus reproduces A/V data recorded on an interactive recording medium such as an interactive DVD in conjunction with contents data provided by a contents providing server using navigation information for the contents data also provided by the contents providing server, thereby allowing synchronized reproduction of data from different sources.

Abstract: An apparatus of reproducing data recorded on a recording medium includes a pick-up unit, a local storage, and a decoder. The pick-up unit reads main data recorded on the recording medium. The local storage stores sub data associated with the main data. The decoder decodes the main data and the sub data using a PlayList file which includes a main path and a sub path, where the main path contains a PlayItem for play-back of the main data, and the sub path contains at least one SubPlayItem associated with the Playitem for play-back of the sub data in association with the play-back of the main data. The sub path may contain a single SubPlayItem or multiple SubPlayItems.

Abstract: A method and a text subtitle decoder for decoding a text subtitle stream recorded on a recording medium are disclosed. A subtitle loading buffer initially loads a text subtitle stream including a dialog style segment defining a group of region styles and a dialog presentation segment having dialog presentation information and dialog text data for a dialog having at least one region. A text subtitle processor parses the dialog presentation segment into composition information, rendering information, and the dialog text data for each region. Next, a text renderer renders the text strings into a bitmap object for each region according to the rendering information, and the rendered bitmap object is composed in a graphics plane.

Abstract: A navigation area of the recording medium stores navigation management information associated with each title of video data. The navigation management information indicates at least one reproduction path for the title of video data and includes an attribute field indicating at least one attribute of the navigation management information.

Abstract: A method of presenting auxiliary data for an interactive recording medium is disclosed. In an interactive recording medium reproducing apparatus that reproduces A/V data and contents data recorded on an interactive recording medium and contents data provided by a contents providing server, the contents data provided by the contents providing server is presented appropriately according to the attributes of the contents data by using attribute information for the contents data.

Abstract: A recording medium includes a data area and a data management area. The data area includes first and second titles which have different data formats with respect to each other. The data management area includes a plurality of data management files required for reproducing the first and second titles. The data management files include a first object file which contains first management information associated with reproduction of the first title, and a second object file which contains second management information associated with reproduction of the second title. For example, the first title is a movie title and the second title is a Java title, and the first object file is a movie object and the second object file is one or more Java object files.

Abstract: A method and apparatus are provided for creating and recording management information for digital data streams, and for reproducing data using the management information. The method for reproducing data from a recording medium includes receiving an access time for accessing data from the recording medium, searching for a target entry point based on the access time by using access time entries, and searching for a target object unit by using the target entry point and object unit entries. The access time entries and the object unit entries are management information stored on the recording medium.

Abstract: In the method, video data is reproduced from the recording medium, and an I-picture and a number of P-pictures are output as a still picture based on the reproduced video data. The output data may then be received and decoded for display.

Abstract: A text subtitle decoder includes a text subtitle processor, a text renderer, and a presentation controller. The text subtitle processor parses a text subtitle stream into text data and reproduction control information, where the text data represent a subtitle text to be displayed within a text subtitle region. After the text subtitle stream is parsed, the text renderer renders the text data into bitmap data using the reproduction control information. The presentation controller controls operations of the text subtitle processor and the text renderer.

Abstract: In the method, video data is reproduced from the recording medium, and an I-picture and a number of P-pictures are output as a still picture based on the reproduced video data. The output data may then be received and decoded for display.

Abstract: Disclosed is a floating system. The floating system comprises a floating body, a first propeller and a second propeller. The first propeller is pivotally secured to the floating body. The second propeller is pivotally secured to the floating body and distanced from the first propeller in a first direction and in a second direction perpendicular to the first direction. The first and second directions are generally parallel to a surface of water on which the floating system floats.

Abstract: At least one text subtitle stream is recorded on a recording medium. Each text subtitle stream includes a dialog style segment defining a set of region styles and at least one dialog presentation segment. Each dialog presentation segment contains at least one region of dialog text and being linked to at least one of the set of region styles. The dialog style segment includes a player style flag which indicates whether a player is permitted to generate its own set of player styles. Then each dialog presentation segment is decoded using the set of player styles if the permission is indicated by the player style flag.

Abstract: In the data structure for managing reproduction of graphic information, first graphic information is stored multiplexed with main data in a first clip file and second graphic information is stored in a second clip file separate from the first clip file.