TWI310934B - Recording medium having a data structure for managing various data and recording and reproducing methods and apparatuses - Google Patents

Description

1310934 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a high-density recording medium such as a read-only Blu-ray Disc (BD-ROM). [Prior Art] Optical discs have been widely used as optical recording media. Now, a new type of high-density optical recording medium (HD-DVD) for recording and storing a large amount of high-definition video and audio data on these optical discs', for example, Blu-ray Disc (hereinafter referred to as "BD") , is already in development. The current global standard specification for Blu-ray Disc (BD), a next-generation HD-DVD technology, is being established as a next-generation optical recording solution that can store far more data than current DVDs. For this reason, the development of optical remanufacturing equipment for the Blu-ray Disc (BD) standard has begun. However, the Blu-ray Disc (BD) standard has not yet been completed, and it is difficult to develop a complete optical remanufacturing device. In particular, in addition to 'mainly AV data', in order to be able to effectively reproduce data from Blu-ray discs, various other materials can be reproduced to facilitate users, for example, auxiliary or supplementary materials related to main AV materials (for example, interactive graphic materials). , subtitle data, etc.). Therefore, management information should be provided to manage the re-engineering of primary and supplementary materials. However, in the current Blu-ray Disc (BD) standard, the standard for managing various materials, especially auxiliary materials, has not yet been completed, and there are many limitations in the development of a Blu-ray Disc (BD) optical remanufacturing device. 1310934 SUMMARY OF THE INVENTION A recording medium according to the present invention includes a data structure for managing the reproduction of various data streams.

In one embodiment, the recording medium stores a playlist that includes at least one play item and at least one sub-path. The play item includes management information for managing the reproduction of the main material recorded on the recording medium, and the sub-path includes at least one sub-play item. The sub-play item includes management information for managing the reproduction of the auxiliary data recorded on the recording medium, and the sub-play item includes a synchronous data field for providing synchronization information to synchronize the reproduction of the auxiliary data and mainly Reproduction of information. Similarly, the sub-path contains a type indicator that indicates the type of auxiliary material managed by the sub-path and is indicated whether or not the synchronization information is valid.

For example, when the type indicator indicates that the auxiliary material type is an audio or interactive graphic presentation menu for a slide, the type indicator indicates that the synchronization information is invalid and the sub path is not synchronized with the play item. As another example, when the type indicator indicates that the auxiliary material type is a text subtitle presentation, the type indicator indicates that the synchronization information is valid and the sub path is synchronized with the play item. In another embodiment, the recording medium stores a playlist including at least one play item and at least one sub-path. The play item includes management information for managing the reproduction of the main material recorded on the recording medium, and the sub-path includes at least one sub-play item. The sub-play item includes management resources 6 1310934, and the replay sub-play item for managing the auxiliary materials recorded on the recording medium confirms at least one clip information file. Each confirmed file indicates a compilation of the auxiliary material to be reproduced from the recording medium. Each confirmed clip information file provides an application type index indicating one of the application types of the auxiliary material in the related clip. In addition, the path contains a type of indicator that indicates the type of assistance managed by the child path and indicates the type of application. For example, when the type indicator indicates that the auxiliary material type is a title, the type indicator indicates that the confirmed clip information file use type indicator indicates that the auxiliary data in the related clips is for the text subtitle. The present invention further provides an apparatus and method for recording and re-engineering in accordance with the present invention. [Embodiment] The present invention will now be described in detail with reference to the embodiments of the present invention, in accordance with the examples thereof. Although the vocabulary used in the present invention is selected from a wide range of general terms, the applicant of the present invention selects these in accordance with his consideration and the detailed meaning of the vocabulary is described in the context of the present invention. Therefore, the present invention is intended to be The solution to the vocabulary provided by the disclosed person. With respect to the above, the main information in the present invention means to record the main data or information on a disc, for example, the title of the video and audio material provided by the author. In general, it is the same as the clip, and the sub-data type is marked by the application type. Meaning a body (example user MPEG2 1310934 format record, and is often referred to as a primary AV stream. Auxiliary or supplementary information means all data related to the main material provided to the user for re-production, including: for example, One of the background music auxiliary audio streams; an interactive graphics stream, such as a PopUp menu, which interacts with a user's keystroke sound; and subtitle information, such as a song's header information and lyrics Therefore, depending on the nature of the auxiliary material, the auxiliary data is multiplexed with a main AV stream in MPEG2 format, or recorded as a stream file in MPEG2 or other format regardless of the main AV stream. The header information is When a user selects a subtitle in a language, the information on the side of the screen is usually displayed, and the disc supports and intends to view a video (the main AV material) in a header of the language. Importing a pop-up menu for the relevant weight In the system, different menus are provided according to the nature of the data, which is provided in a small window of a display screen that does not change the reproduction of a picture in the reproduction. Menu information. In the remake, the picture may be overlapped to display the pop-up menu. Therefore, the menu information is referred to as a "PopUp" menu. The keystroke sound is a short sound provided when a menu button is selected or when a change is selected. Used to cause a user to pay attention to the fact that the next choice has been made. Depending on the keystroke sound used, the keystroke sound is sometimes referred to as a π-select sound." In the present invention, as an auxiliary material" The subtitle "may be, for example, header information of a song text, presentation of graphic information, etc. Therefore, it is possible to use, for example, an MPEG2 transmission (ts) packet, a binary format bit map type 1310934, or a text material (for example) The subtitles are written in various formats of 'characteristic data.' The subtitles recorded in the form of text data can be referred to as, the text subtitles ', and Fig. 1 and Fig. 2 will detail the recording on, for example, a bd disc. In the media, § has recorded the format of the primary and auxiliary materials, and a file structure for managing the data. FIG. 1 is an exemplary embodiment of the present invention, A file architecture for managing various materials on a disc. As shown, the file holder

The BD directory is included in at least one BD directory BDMV. The BDMV directory contains an index file index.bdmv and an object file

MovieObject.bdmv is used as a normal (upper) file to ensure the security of interaction with the user. For example, the index file index.bdmv is centrally constructed in an index list with menu information and title information that the user can select. The BDMV directory also includes a playlist directory PLAYLIST, a clip information directory CLIPINF, a stream directory STREAM, and an affiliate directory AUX DATA. The stream directory STREAM has a standard record on one of the main video and audio streams (also known as the main AV stream) recorded in the MPEG2 transport packet. Because the main AV stream is recorded in MPEG2 format, 兮

The main AV stream file of u cough (for example, 〇l〇〇〇.m2ts and 02000.m2ts) will be n*.m2ts". However, when the supplementary data stream file is not related to the main-source streaming project, in order to facilitate the user to provide the auxiliary data during the main data reproduction period, a little help or supplementary data stream can be separated into a separate directory - AUX The data directory is available. The 1310934 A U X data directory has auxiliary and auxiliary lean streams 'for example' text subtitles (1 0 0 01 . txt st , 1 0002.txtst) text (aaaaa.font ,

20001.font), Popup PopUp (not shown), keystroke sound (Sound · bdmv), and so on. Auxiliary materials, such as interactive graphics (e.g., a pop-up menu) and a sub-title (e.g., a text subtitle) are associated with the primary AV stream and can be supported by other supporting materials such as voice files and font files. For example, the sound file can contain a keystroke sound associated with the remake from the pop-up menu and the user selection, and the font file can contain a font used to reproduce the text sub-title. Some auxiliary data streams, for example, an audio information that can be viewed through a slide, are streamed using the main data stream. Therefore, the auxiliary data streams are included in the data stream directory STREAM. Auxiliary data streams in the AUX data directory are not multiplexed with this primary data stream. Clipinfo directory CLIPINF has a clip information file (for example,

0 1 000.dpi ' 02000.dpi ^ 10001.clpi and 10002.clpi), which has a one-to-one correspondence with the stream file and some AUX data files *.m2ts and *.txt. In particular, c 1 i p i n f 〇 * * * c 1 p i has attribute information and time information of a related building. The information contained in the time information is used to map the presentation time stamp (PTS) on the relevant file to the source packet number of the source packet in the file. This mapping is often referred to as an entry point mapping (EP mapping). In the BD standard, the AV stream *.m2ts, *.txt files, and the like and the related c 1 ipinf 〇 standard * c 1 pi (for example, 1 0 0 0 2 · cp 1 i and 1 0 002.1 \13〇 is called a "clip." The playlist directory PLAYLIST contains a playlist file *.mpls 10 1310934 and a main slot item for specifying a play interval of a particular clip. The play item PlayItem has a The time information of the playback start time In TilIle and the end time Out-Time of the specific clip to be played, and is specified by a clip of clip_Inf〇rmati〇n_File in the broadcast item. Play the early file *mpls by providing at least A play item that provides basic play file information for playing a desired clip. In addition, a playlist file *.mpls - a sub play item SubPlayItem can be provided for assisting the re-management of data. As described below, the sub play The project provides some of the same management information as a play item 'but for the reproduction of the auxiliary materials. Similarly, when the sub-play item SubPlayItem is used for the reproduction of a text subtitle, The text subtitle material is synchronized with the related play item playItem (see below). As another example, when the sub play item SubPlayItem is provided for the reproduction of the browsable slide, the slide can be played. The data is played asynchronously with the related play item piayItem. As shown in Fig. 2, the disc space of the BD_R〇M is organized as: a file system information area, a database area, and a stream area. The area stores system information for managing the optical disc. The database area includes an ordinary file area and a play list and a clip information area. The normal file area stores common files, for example, an indexbdmv file and an M〇VieObject.bdmv file. The playlist and clip information area stores the playlist directory and the CLIPINF directory. The main data and the auxiliary data are recorded in the streaming area. Because &, by using the archive information in the database area and/or in the streaming area Streaming management information, a heavy equipment depends on the main data and supporting materials to be reproduced. 11 1310934 The following is a detailed description of the data structure and information used to manage the reproduction of the auxiliary data, and the method for recording the management information as the management information of the optical disk, and the method for reproducing the auxiliary data by using the management information of the recorded information It will also be described in detail below.

Figure 3 illustrates a data structure and method for recording remastering management information for primary AV data and auxiliary data streams. As shown, a specific title for reproduction can be managed by a playlist file PlayList, and the main AV material (not shown) is recorded in a main clip Main Clip. In particular, in this example, the primary clip MainClip can be managed by the plural play items Playltem #1 and Playltem #2. Similarly, a plurality of play items in a playlist PlayList can manage different main clips Main Clip. Auxiliary data that assists the primary AV material is recorded in separate clips and managed by sub-play items, such as SubPlayItems #1, #2, and #3. As shown, a sub-path exists for each type of auxiliary material, and the sub-play item is organized by the sub-path.

That is, the auxiliary materials are classified according to the type of the clip, and are managed by the plurality of sub-play items. For example, an audio clip for a slide will be a clip managed by a first sub-play item SubPlayItem #1 in a sub-path, and a plurality of text sub-titles, Text Subtitle Clips #l, #2, and # 3 (Header information for supporting Korean, English, and Japanese, respectively), will be a clip managed by the sub play item SubPlayItem2 in another sub path. Regarding auxiliary materials, in addition to audio clips and text subtitle clips, plural other clips (for example, PopUp, etc.) can be managed by another subpath neutron 12 1310934 play item SubPlayltem 3. Thus, an example file architecture of the present invention has an architecture in which the clips are managed by sub-play items of each clip type (e.g., the type of each auxiliary material or sub-path).

The play item Play Itern in the playlist has a re-mastered transaction that reproduces the main material' and the sub-play item S u b PI a y 11 e m has re-management information for re-creating the auxiliary material. Specifically, as described above, the playback item and the sub-play item as part of the reproduction management information provide the reproduction start time ln-Time and the reproduction end time Out-Time for each related clip. This aspect of the management information will be described in detail below with reference to Figs. 4A to 4C. 4A through 4C are architectural diagrams of primary paths and possible sub-paths for the management of the re-editing of clips having different attributes, in accordance with an exemplary embodiment of the present invention. The graphics provide a graphical representation of the data structure in accordance with the present invention. The syntax of these data structures will be described later.

Figure 4A illustrates an example of an audio clip (i.e., an auxiliary audio stream) for a browsable slide. As shown, since a plurality of play items P1ayltems #1 and #2 forming a main path, a sub play item SubPlayItem #1 forms an audio presentation path as a sub-path of a browsable slide. That is, the sub play item SubPlayItem#1 can be used to provide background music, which is a secondary audio stream when displaying a browsable slide. In this example, the sub-play item SubPlayItem#1 is started by the re-creation in one of the sub-streams of the clip 13 1310934

SubPlayltem IN time and 匍 丄 — Provides information over a bundle of time to manage the reproduction of this auxiliary audio stream. In addition, the soil is reorganized so that the reproduction of the attached audio stream clip is not synchronized with the formation of the main path μ, the <play item Playltein. The subplayer box for this subpath type The SubPlayltem does not have a plurality of auxiliary audio clips, and vice versa. There may be only one - the eclipse also the auxiliary audio clip. The sub play item SubPlayItem #1 also manages the clip by providing the clip's clip information file name Clip_informati〇n_file_name.

Figure 4B illustrates an example of a complex text subtitle clip, i.e., a text subtitle stream in accordance with an embodiment of the present invention. As shown, a subtitle subpath of a complex text subtitle stream with different language information (eg, Korean, English, slang, etc.), each of which may have a sub-clip

The item identifier SubClip_entry_id, and can be managed by a sub play item SubPlayItem#2. The sub play item SubPlayItem#2 manages the reproduction of the text subtitle stream by providing the reproduction start time SubPIayItem_IN_time and the reproduction end time SubPlayItem_OUT_time. Therefore, a single interval (IN_time to Out_time) is applied to each of the plurality of clips managed by the sub play item SubPlayItem#2. As mentioned above, the text subtitle stream is synchronized with the main AV data, because when a video stream (for example, 'main AV data) is being reworked, the text subtitle stream is usually displayed on the screen side. Information. By using the information, a sub play item SubPlayItem is synchronized with the play item Playltem, for example, PTS (Presentation Time Stamp). In particular, 'by using the sub-play item SubPlayItem"sync_start_PTS_PlayItem" and "synC_PlayItem-id" field 14 1310934" to synchronize the sub-play item SubPlayltem with the play item piayitem. As an example, as shown in Figure 4B If the sub play item SubPlayItem#2 is to be synchronized at the time t1 with the first play time Playltem#1 having the play item identifier of "〇", the sub play item SubPlayItem#2 contains: a sync — The Playitem_id block is set to the play item id of the first play item #1 (ie, 10"); and a sync_start_PTS_Playiiem, which is set to the time ti.

As will be described in further detail below, a sub-play item SubPlayltem provides a clip information file name associated with the text subtitle stream clips. This is achieved by the SubClip_entry_id index SubClip_information block of each text subtitle stream clip.

Figure 4C illustrates an example of an interactive graphics stream in accordance with an embodiment of the present invention. As shown, an interactive graphical sub-path SubPath of various interactive graphics streams (eg, pop-up menus, etc.) that interact with the user (eg, other clips of FIG. 3) may be identified by the sub-item identifier SubClip_entry_id, and The sub-play item SubPlayItem#3 manages the interactive graphics stream managed by the sub-play item SubPlayItem#3 in synchronization with the play items Playltems #1 and #2 forming the main path. In this respect, as shown in the example of Figure 4A. The sub play item SubPlayItem#3 provides a single remake start time SubPlayItem_IN a time and a single remake end time SubPlayltem_OUT_time; and by providing a management clip information floor 15 1310934

The remapping of these interactive graphics streams is managed as the name of 4B. An example of the diagram is shown in this regard. This figure and Figure 5B illustrate the provision of the main μ stream and auxiliary data at the same time, especially the text of the subtitle of the second shou kong 2^ 乐 5A picture said the date j tianwenzi subtitle in Korean as the header information One of the cases _ example '(4) 5B is an example of a kind of situation when the subtitle of the text is used as a sly in English*. Korean and English text subtitles are used; independent clips exist and are displayed on the side of the display according to the user's choice.

Independent of and overlapping with the main AV stream. Next, the wearing of the data structure will be described herein in accordance with an embodiment of the present invention.

Figure 6 illustrates a grammatical data structure of a sub-path and a sub-play item in accordance with an exemplary embodiment of the present invention. As shown in the figure, the syntax of nSubPath 〇" specifying the auxiliary material associated with the main AV material contained in a playlist PlayList has: a length field, an is_repeat_SubPath field, a number_of_SubPlayItems block, and a SubPlayltem(i). ) field. The length field indicates the length of the subpath data structure. The "SubPath_type" field specifies a subpath type. Here, the types 〇 and 1, are reserved, a type 2 indicates an audio path of a slide, a type 3 indicates an interactive graphic presentation menu path, a type 4 indicates a text subtitle presentation path, and a reserved type 5-255. An optical recording and reproducing device can determine which clip type manages which clip type by using the "SubPath_type" field. As mentioned earlier, only the text subtitle 16 1310934

SubPath_type = 4 is synchronized with the main AV data. Therefore, the subpath type field indicates when the sync — PlayItem_id and sync — start_PTS_PlayItem fields in the subpath subplay item are valid or not. "number—of—SubPlayltem" The number indicating the item SubPlayItem() of the sub-play item managed by the sub-path.

As shown in Fig. 6, the subplay item "SubPlayltem(i)" contains: a length block indicating the length of the sub play item; -"Clip_Information_file_name" block, which is identified by one of the sub play item management One or only clip information file; a "SubPlayItem_IN_time" block and SubPIayItem_OUT_time", to specify one of the streaming file start time and end time as described above; a "Clip_codec_identifier" block, which has one according to ISO 646 Value "m2ts"; a "ref_to_STC_id[0] field to indicate the stc_id value of a STC_id sequence 歹 ij of the clip; and a "sync_PlayItem_id" field and a "sync_start_PTS_of_PlayItemn field" if valid, Used to synchronize sub-play items in a sub-play item as described above. The sub-play item syntax also includes a meta-information field called "is_multi_Clip_entries"> which is recorded therein as a plurality of clips for identifying whether or not the auxiliary material is managed by the sub-play item. For example, when nis_multi_Clip_entries=lb,,, the subplay item manages a plurality of clips, and when the ."is a multi-Clip_entries = Ob" sub-play item manages a single clip. If the sub-play item manages a plural clip (ie, 17 1310934 ”is — multi_Clip_entries=lb"), the syntax of the ij sub-play item "num_of_Clip_entries" field' indicates the number of clips managed by the sub-play item. When editing a plurality of clips, the clips are referred to as sub clips in the subtitle & $ grammar. For the second clip (ie, SubClip_enUy id, to the last sub clip, the syntax of the sub play item is provided _ "Clip_Information_fine_name[subclip__entry Id]" field, and a "ref_to_STC_id [subclip_entry_id" field. In the sub play item

The first part of the grammar already provides information about the first clip, where the shackle (for example, subclip_entry_id) is "0.) Also, if the SubPath type is 4 (ie, the sub-play item manages a text subtitle), then " The language —code"襕 field is included in the sub-play item syntax of each clip managed by the sub-play item. Therefore, the language information with one of the clip item identifier=0 is edited by _ ''language —code" Recorded and as shown in Figure 6, by

"langUage_C〇de[SUbClip_entry —id]" Record the language information of the plural text subtitles retained in the sub play item. In this embodiment, some of the text subtitles managed by the sub-play items may be a maximum of 25 5 . - The sub-clip language code indicates the language of the text subtitle represented by the sub-clip. According to the above data structure and method 'according to the various language clips of a text subtitle, it is clear that the "Unguage_c〇de," can be used to provide language selection information to a user to select and emphasize Text subtitles. Illustrated in the data structure Figures 7 and 8 in accordance with an exemplary embodiment of the present invention 18 1310934 and method for containing information on an auxiliary material clip managed by a sub-play item. Figure 7 illustrates a clipInfo syntax for an auxiliary material clip information in accordance with an exemplary embodiment of the present invention. As shown in the figure, the clip information rights zzzzz.Clpi with application information and the time information on the respective streaming standards *.m2ts, *.txst, etc. have five data structure objects: clipinfo(), SequenceInfo() , ProgramInfo(), CPI(), and ClipMark().

Among them, the "clipinfo" data structure contains a length field and a "application_typ" field. The length field indicates a piece of "clipinfo()" data structure. A "application - type" rotten 'I indicates that a transport stream is used for a movie application Movie application 'a' application_type' block '2' indicates a The transport stream is used for a time-based slideshow. A "application_type" field '3' indicates that a transport stream is used for the main path of a slide show, and an "application_type" field indicates a transport string. The flow system is presented with an audio of a slide sub-path, an "application_type" field '5' indicates that a transport stream is used for an interactive graphics stream sub-path, and an "application_type" Indicates that a transport stream is used for a text subtitle stream subpath. That is, according to "application_typ", respectively, the application of the stream is defined. In other words, the subpath type and the application type block are related to each other so that the subpath type is made. Indicates the application type and vice versa. When "application_typ" is 6 (ie, the case of a text subtitle stream), the ClipInfo() data structure contains A " character_code " field to define a character code value; and a " font_file -name [font_id] " 191310934 stopped position, to define the number of the font file name to each of. Kneeling! J Table 1 shows the character value, which can be used in the "character_code" field. Table 1 Value character code code 0x00 Reserved 0x01 Unicode VI.1 (ISO 1 0646-1) UTF8 0x02 Unicode VI . 1 (ISO 1 0646- 1 ) UTF 1 6 big endian 0x03 GBK1 8030-2000 (Chinese) N. A 0x04 GB23 12 (Chinese) N. A 0x05 BIG5 (Chinese) NA 0x06 Shift JIS (曰文) NA 0x07 KSC 560 1 - 1 987 including KSC 5653 for Roman character (Korean) NA Others reserved

A character code value can be specified according to Table 1, and in particular, the characters can be recorded in a large endian format in the text subtitle stream. During the rework, the font file specified by "f 〇nt _ fi 1 e _ name [ f ο nt _ id ]" can be preloaded on a buffer before the playlist is reworked. . 20 1310934

Figure 8 illustrates a SequenceInfo() data structure syntax for assisting data clip information in accordance with an exemplary embodiment of the present invention. As shown in the figure, in the five data structure objects of the clip information file zzzzz.Clpi, the 'SequenceInfo() data structure has: a length field indicating the length of the SequenceInfo; and a "number_f_ATC_sequences" The bit indicates some ATC (Arrival Time Clock) sequence. By increasing the ATC id from the beginning (ie, ATC_id = 0) until the number of ATC sequences is reached | 'provide "SPN_ATC_start[atc_id]M field information, "number_of_STC_sequence[atc_id]"block information, and "offset_STC_id" field information.

The "SPN_ATC-start[atc_id]" field provides a source packet number (SPN) of the start position of one of the ATC-sequences specified by the ATC_id of the AV stream file, and the "offset_STC_idM provides a first STC-sequence Compensates the STC_id value, and "number_of_ATC_sequences[atc_id]M indicates some STC (system time clock) sequence in the ATC-sequence specified by atc_id. In the case of a text subtitle stream, the number of STC-sequences Is set to '1'. In addition, by adding an STC_id from the compensation value given in the "〇ffset_STC_id" field to a number obtained by increasing the compensation value to "number_of_STC_sequence[atc_id]" The fields provided are nPCR_PID[atc_id][stc_id]" field, "SPN_STC_start[atc_id] [stc_id], field, "presentation_start_time [atc_id] [stc_id]" field and "presentation_end" Time[atc — id][stc — id]”. 13 1310934 The "PCR_PID[atc_id][stc_id]" field indicates the PID value of the transport packet, which contains the STC-sequence specified by stc_id The Pcr field value (the stc_id is specified by the atc_id in the ATC-sequence). The nSPN_STC_start[atc_id][stc_id]n field indicates the source packet SPN of the start position of the STC-sequence specified by stc_id (the stc_id system) In the ATC-sequence specified by atc_id), in the case of a text subtitle stream, the block is set to '0'.

"presentation-start[time][atc_id][stc_id]" field and "presentation-end_time[atc-id][stc_id]" fields indicate the STC-sequence specified by stc_id specified by ATC-sequence One start time and one end time (the ATC-sequence is specified by the ate-id in the AV stream). In the case of a text subtitle stream, the start time is set to '0,' and the end time is the same as the end time of a final presentation.

Figure 9 illustrates an STC-sequence of a text subtitle clip in accordance with an exemplary embodiment of the present invention. As shown in the figure, in the HDMV movie indicated by the plural play item Playltem, the text subtitle managed by a sub play item SubplayItem has an STC-sequence, and the STC-sequence is rendered as a playlist playList using the same global timeline. This is because the STC-sequence, which uses the same global time axis as the playlist PlayList using a STC-sequence, can naturally provide text subtitle information regardless of the play item play Items. Further, the start time of the STC-Sequence is set to W ' and the end time is the same as the end time of a final presentation. 22 1310934 To understand the translation of a text subtitle with a STC-sequence, the decoder obtains information about the STC breakpoint of the main AV clip of the playlist PlayList (as shown by the arc in Figure 9).

BRIEF DESCRIPTION OF THE DRAWINGS A Program Info () data structure syntax for assisting data clip information is illustrated in accordance with an exemplary embodiment of the present invention. As shown in the figure, the five information structure objects of the clip information file zzzzz.Clpi are clipped. The ProgramInfo() data structure has a length field, and a "number_of_program_sequence" field. The length field indicates

The length of the Programlnfo data structure, and the "number_of_program_sequence" field indicates

The number of program sequences managed by ProgramInfo data structure. For each program sequence, the index value is set to "1", and the data structure contains: a "SPN_program_sequence_start[1]" paste, a "program_map_PID" field and a "number_of_streams_in_ps[l]" Field.

The "SPN_program_sequence_start[ 1 ]" field indicates the source packet number (S P N) at which the first program sequence begins. The "number_of_streams_in_ps[l ]" rotten bit indicates the number of elementary streams in the first program sequence. For each stream indexed by stream_index, the data structure further includes a "stream_PID[1]" field, a "StreamCodinglnfo [l][stream_index]" block, and other classes and By. "StreamPID[l][stream_index]"The intercept indicates the PID value of the transport packet of the elementary stream specified by the stream index stream_index for the program sequence specified by the sequence index 1. The "StreamCodinglnfo (i, 23 1310934 stream_index)" field has the decoding information of the basic stream of the main AV stream and the auxiliary stream. The "StreamCodinglnfo (1, stream_index)" shed with the basic stream encoding information contains: a "length π field to indicate the length of one of the "StreamCodinglnfo (1, stream_index)"fields; And an nstream_coding_type" field to indicate an encoding type of the basic stream to block π. The latter has coding information in various forms of the stream depending on the encoding type of the basic stream.

For example, stream_coding_type 0x02 indicates encoding information of an MPEG2 video stream, stream_coding_type 0x80 indicates encoding information of HDTV LPCM audio, stream_coding_type 0x81 indicates encoding information of Dolby AC-3 audio, stream_coding_type 0x82 indicates encoding information of dts audio, and stream_coding_type 0x90 indicates one Encoding information of the graphics stream is presented, and stream_coding_type 0x92 indicates the encoding information of a text subtitle stream (for ease of presentation, Figure 10 illustrates the case of stream_coding_type 0x02 and 0x92)

In the case of stream_coding_type = 0x02, video format, frame rate, aspect_ratio, cc_flag and ISRC() are provided. The first three fields are self-explanatory (self_explan at ory), cc_flag indicates whether Line 21 information for a 525/60 TV system is included in the stream, and the ISRC block indicates the record code of the applicable international standard. In the case of stream — coding —type 0x92 (i.e., in the case of a text subtitle stream), the language information on the text subtitle clip can be included in the "textST_languate_code" field. 24 1310934 The entire set or subset of data structures described above can be used simultaneously or independently. Similarly, a plurality of kinds of clip information can be selected by using a sub play item of any of the above methods. The five data structures of the window information in zzzzz.clpi in Figures 8 and 10 also contain a CPI data structure indicating the time information of the C1 ip M ark () in the AV stream and not yet explained herein. A relationship between the information and the address information. Detailed descriptions of these two data structures will be omitted herein as they are not substantially related to the present invention.

In summary, the auxiliary data existing in the independent editing is presented in a clip type and managed by individual sub-play items. In order to manage the individual clips, the SubPath_type information is used to indicate the application of the sub-play item, and the syntax of the sub-play item is constructed in accordance with an embodiment of the present invention. In order to contain the information required for the auxiliary material clips managed by the sub-play items in the individual clip information structure, the syntax of the clip information file zzzzz.Clpi is constructed in accordance with an embodiment of the present invention. The features of the present invention are not limited to the above.

Fig. 1 is a view showing an optical recording and reproducing apparatus having the technical aspect of the invention in accordance with the above embodiment. As shown, the optical recording and reproducing apparatus includes: a head portion 11 for reading main data, auxiliary data, and reproduction management information; and a servo mechanism 14 for controlling the head portion 11 Operation: a signal processing portion 13 for converting a reproduced signal received from the head portion 11 into a desired signal value, or modulating a signal to be recorded into a signal recordable on the optical disc; The body 15 is used to pre-load the re-management information including the auxiliary data; and a microcomputer 16 is used to control the operation of the 25 1310934 system. Memory 15 represents a collection of various possible storage elements (RAMs, buffers, etc.) that may be present in optical recording and reproduction equipment. The memory 15 can be replaced by a plural storage tool of a different name.

An AV decoder 17 interprets the output data and provides interpretation information to the user under the control of a control portion 12 (e.g., a processor). An AV encoder 18 converts an input signal into a signal of a particular format, such as an MPEG2 transport stream. For example, the control section 12, the decoder 18, and the signal processing section 13 can be recorded together in any of the above-described data structures. When receiving the user to reproduce a specific title, the control section 1 2 (one of the elements controlling the operation of the entire optical recording and reproducing apparatus) reads the play item Playltem and the sub-play item information of a playlist from the PlayList directory, And replaying the play item Play Item and the sub play item SubPlayltem as described above, based on, for example, the clip type information of the auxiliary material, the application, and the time information of the main data and the auxiliary material included in the read information.

While the invention has been described in terms of a limited embodiment, the various modifications and variations of the invention will be apparent to those skilled in the art. For example, although many of the examples herein are disclosed by a B 1 u - r a y R Ο ,, the present invention is not limited to such a disc standard or such a disc. The present invention covers all modifications and variations within the spirit and scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings are included to provide a further understanding of the invention, and are incorporated herein by reference in its entirety herein principle. In the drawings: FIG. 1 is a diagram showing an archival structure for managing various materials on a compact disc according to an exemplary embodiment of the present invention; FIG. 2 is a diagram showing a first embodiment according to an exemplary embodiment of the present invention. The format of a disc on which the file structure is recorded;

FIG. 3 is a diagram showing a data structure and method for recording and reproducing management information of main AV data and auxiliary data streams; FIGS. 4A to 4C are diagrams showing an exemplary embodiment according to the present invention. One of the main paths and possible sub-path architectures for the re-management of clips with different attributes; the examples shown in Figures 5A and 5B illustrate the simultaneous provision of a main AV stream and auxiliary material (especially a text subtitle) FIG. 6 illustrates a grammatical data structure of a sub-path and a sub-play item according to an exemplary embodiment of the present invention;

Figure 7, in accordance with an exemplary embodiment of the present invention, illustrating a clipinfo() grammar for an auxiliary material clip information; Figure 8 illustrates an auxiliary data clip in accordance with an exemplary embodiment of the present invention. One of the information SequenceInfo() data structure grammar; FIG. 9 illustrates an STC sequence of one of the text subtitle clips according to an exemplary embodiment of the present invention; FIG. 10, in accordance with an exemplary embodiment of the present invention, A Pr diagramInfo() data structure syntax for assisting data clip information; and a block diagram of FIG. 131010, FIG. 1 1 illustrate an optical recording and reproducing apparatus in accordance with an exemplary embodiment of the present invention. [Main component symbol description] 11 read/write head 1 2 control part 1 3 signal processing part

1 4 servo mechanism 1 5 memory 1 6 microcomputer 17 AV decoder 18 AV encoder

28

Claims (1)

1310934 X. Patent application scope: 1. A recording medium with a data structure for managing various materials, including: a recording area storing a playlist, the playlist including at least one play item and at least one sub-path, the play item including management information for managing a reproduction of the main data recorded on the recording medium, the sub-path including at least a sub play item, the sub play item includes management information for managing the reproduction of the auxiliary data recorded on the recording medium, and the sub play item includes a synchronization data field for providing synchronization information to synchronize the auxiliary The reproduction of the data and the reproduction of the primary data, and the sub-path includes a type of indicator indicating the type of auxiliary data managed by the sub-path and indicating whether the synchronization information is valid. 2. The recording medium of claim 1, wherein the type of indicator indicates that the type of auxiliary material is one of: an audio for a slide, an interactive graphic presentation menu, and a text subtitle presentation. 3. The recording medium of claim 2, wherein when the type indicator indicates that the auxiliary material type is the audio for a slide or the interactive graphic presentation menu, the type indicator indicates that the synchronization information is invalid. And the subpath is not synchronized with the play item. 4. The recording medium of claim 2, wherein when the type indicator indicates that the auxiliary material type is the text subtitle presentation, the type indicator indicates that the synchronization information is valid and the sub-path and the play item 29 1310934 is synchronized. 5. The recording medium of claim 4, wherein the synchronization information provides a presentation time at the play item to indicate when the presentation of the sub-play item is initiated. 6. The recording medium of claim 5, wherein the sub-play item further comprises a synchronized play item identifier indicating a sub-play item to be synchronized by the play item. 7. The recording medium of claim 1, wherein the type of indication indicates that the auxiliary material type is a text subtitle presentation and the synchronization information is valid. 8. The recording medium of claim 7, wherein the synchronization information provides a presentation time at the play item to indicate when the presentation of the sub-play item is initiated. 9. The recording medium of claim 8, wherein the sub-play item further comprises a synchronized play item identifier indicating a sub-play item to be synchronized by the play item. The recording medium of claim 1, wherein, when valid, the synchronization information provides a presentation time at the play item to indicate when the presentation of the sub-play item is started. 1 1. The recording medium of claim 10, wherein the sub-playing item further comprises a synchronized play item identifier indicating a sub-play item to be synchronized by the play item. 1 2. The recording medium of claim 1, wherein the sub-play 30 1310934 item confirms at least one clip information file, and each confirmed clip information file indicates the auxiliary material to be reproduced from the record medium. A related clip, the auxiliary material in each clip is related to at least a portion of the main material recorded on the recording medium, and the sub-play item indicates a single presentation interval for the related clips. The recording medium of claim 12, wherein the clip information file confirmed by the sub-play item indicates a clip of a sub-title of a different language. 1 . The recording medium of claim 12, wherein each confirmed clip information file provides an application type indicator for indicating an application type of the auxiliary material in the related clips, and the type The indicator indicates the type of application. The recording medium of claim 12, wherein when the type indicator indicates that the auxiliary material type is a text subtitle, the type indicator indicates: an application type indicator provided by the confirmed clip information file. The application type indicating the auxiliary materials in the related clips is for the text subtitle. 1 6. A method for reconstructing a data structure for managing various materials from a recording medium, comprising the steps of: recreating a playlist from the recording medium, the playlist comprising at least one play item and at least one sub-path, The play item includes management information for managing the reproduction of the main data recorded on the recording medium, the sub-path includes at least one sub-play item, and the sub-play item 31 1310934 includes management information for managing the recording medium. a reproduction of the auxiliary material recorded thereon, and the sub-play item includes a synchronization data block for providing synchronization information to synchronize the reproduction of the auxiliary data and the reproduction of the main data, and the sub-path includes a type An indicator indicating the type of auxiliary data managed by the sub-path and indicating whether the synchronization information is valid. 1 7. The method of claim 16, wherein the type of indicator indicates that the type of auxiliary material is one of: an audio for a slide, an interactive graphical presentation menu, and a text subtitle presentation . 18. The method of claim 17, wherein the type of indicator indicates that the synchronization information is invalid when the type of indicator indicates that the auxiliary material type is the audio for a slide or the interactive graphic presentation menu. And the subpath is not synchronized with the play item. 1 9. The method of claim 17, wherein the type refers to When the indicator indicates that the auxiliary material type is that the text subtitle is presented, the type indicator indicates that the synchronization information is valid and the sub path is synchronized with the play item. A method for managing a data structure for managing various data streams in a recording medium, comprising the steps of: recording a playlist on the recording medium, the play list comprising at least one play item and at least one sub-path, The play item includes management information for managing the reproduction of the main data recorded on the recording medium, the sub-path includes at least one sub-play item, and the sub-play item 32 1310934 includes management information for managing the recording medium. a reproduction of the auxiliary material recorded thereon, and the sub-play item includes a synchronization data field for providing synchronization information to synchronize the reproduction of the auxiliary data and the reproduction of the main data, and the sub-path includes a type An indicator indicating the type of auxiliary data managed by the sub-path and indicating whether the synchronization information is valid. 2 1. The method of claim 20, wherein the type of indicator indicates that the auxiliary material type is one of: an audio for a slide, an interactive graphic presentation menu, and a text subtitle presentation . 22. The method of claim 21, wherein when the type of indicator indicates that the auxiliary material type is the audio for a slide or the interactive graphical presentation menu, the type of indicator indicates that the synchronization information is invalid. And the subpath is not synchronized with the play item. The method of claim 2, wherein when the type indicator indicates that the auxiliary material type is the text subtitle presentation, the type indicator indicates that the synchronization information is valid and the sub path is synchronized with the play item. Chemical. 2 4. A device for reorganizing a data structure for managing various data streams from a recording medium, comprising: a read/write head configured to reproduce data recorded on the recording medium; and a controller And the system is configured to control the read/write head to reproduce a playlist from the recording medium, the playlist includes at least one play item and 33 1310934 At least one sub-path, the play item includes management information for managing a reproduction of the main data recorded on the recording medium, the sub-path includes at least one sub-play item, the sub-play item includes management information, and is used to manage Re-creating the auxiliary data recorded on the recording medium, and the sub-playing item includes a synchronization data field for providing synchronization information to synchronize the reproduction of the auxiliary data and the reproduction of the main data, and the sub-path A type indicator is included that indicates the type of auxiliary material managed by the sub path and indicates whether the synchronization information is valid. 2. The device of claim 24, wherein the controller is configured to control the read/write head to reproduce the playlist, the playlist includes the sub-path, the sub-path including the type of indicator, the indication The auxiliary material type is one of: an audio for a slide, an interactive graphic presentation menu, and a text subtitle presentation. 2. The device of claim 25, wherein the controller is configured to control the read/write head to reproduce the playlist, the playlist includes the sub-path, the sub-path including the type of indicator, when When the type of indicator indicates that the auxiliary material type is the audio for a slide or the interactive graphic presentation menu, the type indicator indicates that the synchronization information is invalid, and the sub path is not synchronized with the play item. 2. The device of claim 25, wherein the controller is configured to control the read/write head to reproduce the playlist, the playlist includes the sub-path, the sub-path including the type of indicator, when The type indicator refers to 34 1310934 indicating that the auxiliary material type is when the text subtitle is presented, the type indicator indicates that the synchronization information is valid and the sub path is synchronized with the play item. 2. A device for recording a data structure for managing various data streams on a recording medium </ RTI> comprising: a read/write head configured to record data on the recording medium; a controller configured to control the head to record a playlist on the recording medium, the playlist comprising at least one play item and at least one sub-path, the play item including management information for managing the record Reproduction of the main data recorded on the media, the sub-path includes at least one sub-play item, the sub-play item includes management information for managing the reproduction of the auxiliary material recorded on the recording medium, and the sub-play item includes a synchronization data block for providing synchronization information to synchronize the reproduction of the auxiliary data and the reproduction of the primary data, and the sub-path includes a type of indicator indicating the type of auxiliary data managed by the sub-path, And indicate whether the synchronization information is valid. 29. The device of claim 28, wherein the controller is configured to control the head to record the playlist, the playlist including the subpath, the subpath including the type of indicator, the indication The auxiliary material type is one of: an audio for a slide, an interactive graphic presentation menu, and a text subtitle presentation. 35 1310934 3 0. The device of claim 29, wherein the controller is configured to control the head to record the playlist, the playlist includes the sub-path, the sub-path includes the type of indicator When the type indicator indicates that the auxiliary material type is the audio for a slide or the interactive graphic presentation menu, the type indicator indicates that the synchronization information is invalid, and the sub path is not synchronized with the play item. The device of claim 29, wherein the controller is configured to control the head to record the playlist, the playlist includes the sub-path, the sub-path includes the type indicator, when The type indicator indicates that the auxiliary material type is when the text subtitle is presented, the type indicator indicates that the synchronization information is valid and the sub path is synchronized with the play item. 3 2 · A recording medium with a data structure for managing various materials, including: a recording area for storing a playlist, the playlist including at least one play item and at least one sub-path, the play item including management information for managing a reproduction of the main data recorded on the recording medium, the sub-path includes At least one sub-play item, the sub-play item includes management information for managing the reproduction of the auxiliary material recorded on the recording medium, and the sub-play item confirms at least one clip information file, and each confirmed clip information file indication Each of the confirmed clip information files is provided with an application type indicator indicating an application type of the auxiliary material in the related clip 36 1310934, and the child is associated with the editing of the auxiliary material. The path contains a type indicator indicating the type of the auxiliary material managed by the sub path and indicating the application type. 3. The recording medium according to claim 3, wherein when the type indicator indicates that the auxiliary material type is a text subtitle, the type indicator indicates: an application type indicator provided by the confirmed clip information file. The application type indicating the auxiliary materials in the related clips is for the text subtitle. The recording medium of claim 3, wherein the sub-play item confirms at least one clip information file, and each confirmed clip information file indicates one of the auxiliary materials to be reproduced from the record medium. A related clip, the auxiliary material in each clip is related to at least a portion of the main material recorded on the recording medium, and the sub-play item indicates a single presentation interval for the related clips. The recording medium according to claim 34, wherein the clip information file named by the sub play item indicates a clip of a subtitle of a different language. 3. The recording medium of claim 3, wherein the type of indicator indicates that the auxiliary material type is an audio for a slideshow, an interactive graphical presentation menu, and a text subtitle presentation. 3 7. A method for reorganizing a data structure for managing various data streams from a recording medium, comprising the steps of: recreating a playlist from the recording medium, the playlist being included to 37 1310934 One less play item and at least one sub-path, the play item includes management information for managing the reproduction of the main data recorded on the recording medium, the sub-path includes at least one sub-play item, the sub-play item includes management information For managing the reproduction of the auxiliary material recorded on the recording medium, and the sub-play item confirms at least one clip information file, and each confirmed clip information file indicates one of the auxiliary materials to be reproduced from the recording medium. a related clip, each confirmed clip information file providing an application type indicator indicating an application type of the auxiliary material in the related clip, and the sub path includes a type indicator indicating the one managed by the sub path The type of auxiliary material and indicate the type of application. 3. The method of claim 3, wherein when the type indicator indicates that the auxiliary material type is a text subtitle, the type indicator indicates: an application type indicator indication provided by the confirmed clip information file. The application type of the auxiliary materials in the related clips is for the text subtitle. 3. The method of claim 3, wherein the type of indicator indicates that the type of auxiliary material is one of: an audio for a slide, an interactive graphical presentation menu, and a text subtitle presentation . A method for managing a data structure for managing various data streams in a recording medium, comprising the steps of: recording a playlist on the recording medium, the playlist comprising at least one play item and at least one sub-path, The play project contains management 38 stupid 1310934 Information for managing the reproduction of the main data recorded on the recording medium, the sub-path comprising at least one sub-play item, the sub-play item containing management information for managing the weight of the auxiliary data recorded on the recording medium And the sub-play item confirms at least one clip information file, each confirmed clip information file indicating a clip related to one of the auxiliary materials to be reproduced from the record medium, and each confirmed clip information file provides an application type An indicator indicating an application type of the auxiliary material in the related clip, and the sub-path includes a type indicator indicating a type of the auxiliary material managed by the sub-path and indicating the application type. 4 1. The method of claim 40, wherein when the type indicator indicates that the auxiliary material type is a text subtitle, the type indicator indicates: an application type indicator indication provided by the confirmed clip information file. The application type of the auxiliary materials in the related clips is for the text subtitle. 4 2. The method of claim 40, wherein the type of indicator indicates that the auxiliary material type is one of: an audio for a slide, an interactive graphic presentation menu, and a text subtitle presentation . 43. A device for reorganizing a data structure for managing various data streams from a recording medium' comprises: a read/write head configured to reproduce data recorded on the recording medium; and a controller It is configured to control the head from the recording medium 39 1310934 Recreating a playlist, the playlist includes at least one play item and at least one sub-path, the play item includes management information for managing a reproduction of the main data recorded on the recording medium, the sub-path including at least one sub-path Playing a project, the sub-playing item includes management information for managing the reproduction of the auxiliary material recorded on the recording medium, and the sub-playing item confirms at least one clip information file, and each confirmed clip information file indicates that the Recording one of the auxiliary materials of the media reproduction, each confirmed clip information file provides an application type indicator indicating an application type of the auxiliary material in the related clip, and the sub path includes a type indicator , which indicates the type of the auxiliary material managed by the sub-path and indicates the application type. 4. The device of claim 43, wherein the controller is configured to control the read/write head to reproduce the playlist, the playlist includes the sub-path, the sub-path including the type of indicator, when When the type indicator indicates that the auxiliary material type is a text subtitle, the type indicator indicates that the application type indicator provided by the confirmed clip information file indicates that the application type of the auxiliary material in the related clips is for the text subtitle. 4. The device of claim 43, wherein the controller is configured to control the read/write head to reproduce the playlist, the playlist includes the sub-path, the sub-path including the type of indicator, the type The indicator indicates that the type of auxiliary material is one of the following: an audio for a slide, a 40Y1310934 interactive graphic presentation menu, and a text subtitle presentation. 4 6. A device for recording a data structure for managing various data streams on a recording medium, comprising: a read/write head configured to record data on the recording medium; a controller configured to control the head to record a playlist on the recording medium, the playlist comprising at least one play item and at least one sub-path, the play item including management information for managing the record medium Reproduction of the main data recorded, the sub-path includes at least one sub-play item, the sub-play item includes management information for managing the reproduction of the auxiliary material recorded on the recording medium, and the sub-play item confirms at least a clip information file, each confirmed clip information file indicating a clip related to one of the auxiliary materials to be reproduced from the record medium, each confirmed clip information file providing an application type indicator indicating in the related clip One of the auxiliary data application types, and the sub-path includes a type indicator indicating the type of the auxiliary material managed by the sub-path and indicating the application type. 4. The device of claim 46, wherein the controller is configured to control the head to record the playlist, the playlist includes the sub-path, the sub-path includes the type of indicator, when When the type indicator indicates that the auxiliary material type is a text subtitle, the type indicator indicates: the application type indicator indication provided by the confirmed clip information file 41 1310934. • V The application type of the auxiliary data in the related clips is for text Subtitle use. 4. The device of claim 46, wherein the controller is configured to control the head to record the playlist, the playlist includes the subpath, the subpath includes the type indicator, The type indicator indicates that the auxiliary material type is one of: an audio for a slide, an interactive graphic presentation menu, and a text subtitle presentation. 42 1310934 VII. Designated representative map: (1) The designated representative figure in this case is: (3). (2) Brief description of the symbol of the symbol of the representative figure: None 8. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: