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: 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: Disclosed herein are a method for reproducing contents information in an interactive optical disc device and a method for providing contents information in a contents provider server. The interactive optical disc device is connected with the contents provider server via the Internet to receive a variety of contents information provided from the contents provider server. When the sending of the contents information from the contents provider server to the interactive optical disc device is suspended or delayed due to a network connection loss on the Internet or an insufficient storage capacity of a buffer memory in the interactive optical disc device, contents information re-sent from the contents provider server and a data stream read from an interactive DVD are re-synchronized and reproduced. Therefore, a user of the interactive optical disc device can normally watch more various contents information.

Abstract: The recording medium has a data structure for managing reproduction of data recorded on the recording medium. A navigation area stores at least one navigation file, and the navigation file includes at least one navigation command group. At least one navigation command group includes at least one navigation command for managing reproduction of at least video data recorded on the recording medium.

Abstract: Disclosed herein are a method for reproducing contents information in an interactive optical disc device and a method for providing contents information in a contents provider server. The interactive optical disc device is connected with the contents provider server via the Internet to receive a variety of contents information provided from the contents provider server. When the sending of the contents information from the contents provider server to the interactive optical disc device is suspended or delayed due to a network connection loss on the Internet or an insufficient storage capacity of a buffer memory in the interactive optical disc device, contents information re-sent from the contents provider server and a data stream read from an interactive DVD are re-synchronized and reproduced. Therefore, a user of the interactive optical disc device can normally watch more various contents information.

Abstract: The present invention relates to a method and apparatus for accomplishing a requested operation selectively based upon features of other equipment between equippments connected through a digital interface such as the IEEE 1394.

Abstract: A recording medium, an apparatus and a method for recording time information of digital data streams are provided. The apparatus includes a clock generator to generate a clock; a counter to count the clock generated by the clock generator such that a smaller-unit time field is reset when the count value of the smaller-unit time field reaches a predetermined value and a bigger-unit time field is incremented by 1 when the smaller-unit time field is reset; and a data formatter to create data object units by adding the count values of the bigger-unit time field and the smaller-unit time field of the counter at the time each unit of a digital data stream is received, to the corresponding unit of the digital data stream.

Abstract: A recording medium, method and apparatus for recording digital data streams are provided. The method includes recording a received digital data stream of data packet units by grouping the data packet units into program units, and creating and recording entry information pertaining to entry points of the digital data stream.

Abstract: A recording medium with the increased recording efficiency is provided. Depending upon the size of the remaining area of a sector, a transport stream unit is recorded across two sectors with the result that sectors contain no null data. If the size of the remaining area of the last sector of a stream object unit is less than the size of a transport stream unit, the remaining area is padded with null data.

Abstract: A method for controlling playback of data recorded on an enhanced navigation medium is provided. The method comprises initializing at least a first playback engine of an enhanced navigation device, when an enhanced navigation mode is selected; entering a first playback state for at least the first playback engine, when an enhanced navigation engine preloads navigation information; and controlling media playback operations, in response to user interaction with a user interface of the enhanced navigation device; wherein the enhanced navigation engine controls a plurality of playback states based on the user interaction with a plurality of user interfaces of the enhanced navigation device.

Abstract: A recording medium, method and apparatus for providing management information are provided. The method includes grouping data of a digital data stream into a plurality of object units, and creating map information for accessing the data, wherein the map information includes time information and object unit information associated with the object units.

Abstract: A method for recording digital data streams capable of increasing recording efficiency of a recording medium by recording a transport stream unit across two sectors. Depending upon the size of the remaining area of a sector, a transport stream unit is recorded across two sectors with the result that sectors contain no null data. If the size of the remaining area of the last sector of a stream object unit is less than the size of a transport stream unit, the remaining area is padded with null data. The method for recording digital data streams in accordance with the present invention minimizes the size of the recording area padded with null data, thereby remarkably increasing the recording efficiency of a recording medium.

Abstract: An interactive DVD system for reproducing chatting data is provided. The Content disk player is connected to a content server via a communication network. The Content disk player system comprises means for forwarding a request to the content server to receive new chatting data associated with content for play-back by the Content disk player, wherein the request comprises a first LUT information; means for receiving the new chatting data and a second LUT information associated with the new chatting data; means for playing back the new chatting data in synchronization with content provided from a content source.

Abstract: The present invention relates to multi-channel stream recording/reproducing method and apparatus. The present multi-channel stream reproducing method checks whether or not reproduced multi-channel stream belongs to same broadcast (RF) channel, and deletes PSI (Program Specific Information) packets included in channel stream excluding one channel stream if it belongs to same RF channel, and makes new PSI packets with reference to PSI packets included in reproduced multi-channel stream to replace them, if not. Furthermore, the present method compensates appropriately PCRs (Program Clock References) included in channel stream excluding one channel stream in case of the latter. The present method enables a digital TV set to present multi-channel stream simultaneously in PIP (Picture-In-Picture) or multi-screen mode with no error in channel selection and presentation (or decoding) time.

Abstract: A photoresist pattern is formed, without being exposed, by using photoresist having a residual layer proportion characteristic by which the photoresist dissolves at a suitable rate in a developing solution. First, a target layer to be patterned and a photoresist layer are sequentially formed on a substrate having a pattern that defines a step on the substrate. Some of the photoresist layer is treated with the developing solution, to thereby form a photoresist pattern whose upper surface is situated beneath the step and hence, exposes part of the target layer. Next, the exposed part of the target layer, and the photoresist pattern are removed. A silicidation process may be carried out thereafter on the area(s) from which the target layer has been removed. The method is relatively simple because it does not involve an exposure process. Furthermore, the method can be used to manufacture devices having very fine linewidths, i.e.

Abstract: The recording medium includes a playlist directory area and at least one navigation information area. The playlist directory area stores a playlist directory including a plurality of playlist files. Each playlist file identifies a portion of the multiple playback path video data and at least a portion of the playlist files associated with different playback paths. The navigation information area stores navigation information at least providing information on one playback path.

Abstract: The recording medium includes at least one data area storing more than one clip of video data for at least one segment of a title, and each clip of video data is associated with a different reproduction path of the segment.

Abstract: The data structure for managing reproduction of at least video data recorded on the recording medium includes a general information file area storing at least one general information file. The general information file includes at least one playlist identifier identifying a playlist file forming a title of video data recorded on the recording medium and title management information for managing reproduction of the video data by title. A playlist directory area stores at least one playlist directory, and each playlist directory includes at least one playlist file identified by a playlist identifier in the general information file. Each playlist file identifies at least one playitem, and each playitem identifies a clip of the video data.

Abstract: The recording medium includes a navigation area and at least one playlist area. The navigation area stores navigation management information for managing the reproduction of at least multiple reproduction path video data from the recording medium. At least one playlist is stored in a playlist area. Each playlist identifies at least one playitem, and each playitem identifies at least one clip of video data.

Abstract: The recording medium includes a navigation area storing navigation control information for managing the reproduction of at least video data from the recording medium. The navigation area, according to one embodiment, stores at least one navigation control object that includes an attribute field indicating at least one attribute of the navigation control object and a navigation direction number field indicating a number of navigation directions. Each navigation control object includes at least one navigation direction.