Abstract: A method and apparatus for recording digital data streams. When a digital broadcast data stream received by a set top box is transmitted through a communication interface such as an IEEE-1394 bus to a streamer, program clock references contained in the data stream become different from the actual arrival time of the digital data stream because of different clock frequencies of the digital data stream and communication interface. The difference is compensated before the digital data stream is recorded on the streamer. The method in accordance with the present invention comprises detecting program clock references contained in received digital transport stream packets, creating the transport time reference of each transport stream packet based upon the detected program clock references and arrival times of the transport stream packets, and creating transport stream units by adding each of the created transport time reference to the associated transport stream packet.

Abstract: The present invention writes location information on representative audio sections, each being specified within an audio track by a user, for audio tracks recorded in a high-capacity storage medium, and, if requested, reproduces representative audio sections only using the written location information, thereby helping a user find a desirable audio track easily and quickly among a lot of recorded audio tracks.

Abstract: A method and apparatus for recording digital data streams on a recording medium are provided. The method includes checking the existence of entry point information in a received digital transport stream, and creating map information regarding the entry point information. The map information includes time information and location information regarding the entry point information.

Abstract: Provided is a method of manufacturing a thin film magnetic head.

Abstract: The present invention relates to a method and apparatus of recording a directly-received digital television broadcast signal. This method demodulates a received high definition digital television broadcast signal, extracts transport stream belonging to a chosen channel among the demodulated data stream, analyzes data of the transport stream, extracts and creates data stream- and/or recording-related information, and writes the data stream- and/or recording-related information and the extracted transport stream to a recording medium in a format suitable to the extracted and created information. According to the present method and apparatus, it is possible to record a high definition digital television broadcast signal without any intermediary set top box to a high-density recording medium in the appropriate recording format as well as to conduct a trick play for recorded television broadcast signal smoothly with such recorded format and the data stream- and/or recording-related information.

Abstract: An optical disc and a method and apparatus for recording digital data streams and management information on the disc, are provided. The method includes recording a digital data stream including at least one predetermined-sized unit, each unit carrying header information and at least one packet, the header information being represented in at least one header entry, selectively appending an additional header entry based on whether a number of the at least one header entry corresponds to a number of the at least one packet, and recording an indication information that indicates whether or not the additional header entry is appended.

Abstract: A method and apparatus for reproducing content information for an interactive optical disc reproduces various audio content data from a server of an external network or the optical disc in association with video data read out from the optical disc in synchronization. When a synchronization failure occurs during reproduction, an offset value of the audio content data capable of re-synchronization thereafter is calculated, after which audio content data corresponding to the offset value are either provided by the server or read out from the optical disc, thereby permitting re-synchronization with the video data.

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 data structure in accordance with the present invention comprises a navigation area storing at least one first-typed object and at least one second-typed object, wherein each of the objects indicates at least one playlist to reproduce, the first-typed object includes at least one navigation command for managing reproduction of main data recorded on the recording medium, the second-typed object includes at least one navigation command for managing reproduction of additional content data to be reproduced with the main data, and the at least one playlist indicated by the second-typed object includes reproducing information related with the additional content data.

Abstract: In the data structure, a data area of the recording medium stores a transport stream of at least video data. The transport stream is divided into transport packets. Each of the transport packets is associated with one of the multiple reproduction paths, and the transport packets of each reproduction path are interleaved with one another. In the date structure, a navigation area stores at least one navigation data item. The navigation data item provides navigation information for reproducing more than one of the multiple reproduction paths. The navigation area also stores a separate map associated with each reproduction path, and each map provides position data for the video data of the associated reproduction path.

Abstract: The recording medium includes a path management area storing path management information. The path management information identifies clips of video data associated with each reproduction path of at least a segment of a title.

Abstract: A backlight unit assembly using a light emitting diode array in a liquid crystal display device is disclosed in the present invention. The backlight unit assembly includes a light emitting diode array having a plurality of red, green, and blue light emitting diodes emitting respective light, a first housing concentrating the light emitted from the light emitting diode array to a first direction, a sub-light guiding plate positioned at one side of the light emitting diode array mixing the light to form white light, a main-light guiding plate guiding the light incident on the sub-light guiding plate to a second direction, and a pair of holders at the left and right side portions of the light emitting diode array preventing the light from leaking to the outside of the backlight unit assembly.

Abstract: A recording medium having a data structure for managing additional content data of main data recorded thereon in accordance with the present invention comprises a data area storing at least one clip file including main data and/or additional content data of the main data; and a navigation area storing a clip information file including information to indicate whether the clip file includes additional content data.

Abstract: The recording medium includes a data structure having a menu data area and a menu management area. The menu data area stores one or more thumbnail pictures as menu data. Each thumbnail picture is stored as a block of menu data. The menu management area stores menu management information. The menu management information provides an index to each thumbnail picture in the menu data area.

Abstract: The present invention relates to a data structure for managing to resume reproduction of data including at least video data recorded on a recording medium. A recording medium having the data structure has data recorded thereon that comprises: at least one data playing unit (title or movie object) including at least video data; and navigation information for managing the data playing unit, wherein the navigation information includes control information to indicate whether resumption of the data playing unit is permitted or not.

Abstract: The recording medium includes a data structure having a navigation map. The navigation map includes a number of map entries and indicates the number of map entries. Each map entry maps presentation time with location information for a segment of the data stream stored on the recording medium. The navigation map also includes multi-path information when the data stream includes segments representing multiple reproduction paths.

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 for authenticating an interactive optical disk, wherein first content is stored on the interactive optical disk for reproduction by a reproducing system, the method comprising: transmitting a first request to a content server to access second content from the content server based on enhanced navigation data recorded on the interactive optical disk; and authenticating identity of the interactive optical disk with the content server based on authentication data provided by the reproducing system, when the first request indicates that authentication is required.

Abstract: The data structure for managing reproduction of at least video data recorded on the recording medium may include, for example, path management information for managing reproduction of the multiple reproduction path video data recorded on the recording medium. The path management information indicates at least one playlist belonging to each reproduction path. The data structure further includes at least one playlist file identified by the path management information recorded in a playlist area of the recording medium. The playlist file identifies at least one playitem, and each playitem identifies a clip of the multiple reproduction path video data. The data structure may includes chapter management information for managing reproduction of the video data by chapters. In one example, the chapter management information is recorded in the playlist files.

Abstract: The present invention relates to a method and apparatus for transceiving audio data reproduced from a recording medium such as a digital video disk (DVD) through a digital interface such as IEEE 1394. The transmitting method according to the present invention separates an audio data stream from data reproduced from a recording medium, inserts the separated audio data stream into the private data area of an MPEG-formatted data stream, and transmits the MPEG-formatted data stream containing the audio data stream in the private data area through a digital communication line. The receiving method according to the present invention checks whether or not an MPEG-formatted data stream received through a digital interface includes the private data area, extracts audio data inserted in the private data area, and decodes the extracted audio data. As a result, the present invention does not require the conventional re-encoding process after decoding.

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.