Classifications

• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
  • G11B20/10—Digital recording or reproducing

Definitions

• the present invention relates to an information storage medium that allows audio data obtained from a source external of the information storage medium, such as, via the Internet to be reproduced with corresponding video object data, and an apparatus and method of reproducing the audio data with the video object data.
• Video object data and audio data are stored together in a conventional information storage medium such as a Digital Versatile Disc (DVD), so that the video object data can be reproduced together with the audio data.
• DVD Digital Versatile Disc
• the audio data stored with the video object data cannot be replaced with another audio data.
• FIG. 1 is a conceptual diagram illustrating a unit of video object data linked to a plurality of audio data, stored in a DVD.
• the video object data In order to reproduce the video object data generated and stored in a plurality of languages such as English, Korean, and Spanish, the video object data must be stored with the audio data in the plurality of languages in an information storage medium.
• the video object data After manufacturing and selling an information storage medium storing the video object data, the video object data must be reproduced with audio data in a different language from the original language of the audio data recorded in the information storage medium.
• a director's commentary audio containing comments by a movie manufacturer, a movie director, and a movie photographer are separately provided to those who purchase the information storage medium containing the video object data.
• an information storage medium that allows video object data to be reproduced together with corresponding audio data obtained from a source external of the information storage medium such as via the Internet.
• an apparatus and method of reproducing video object data stored in an information storage medium, with corresponding audio data obtained from a source external of the information storage medium such as via the Internet are provided.
• [7] it is possible to map audio data obtained via the Internet to video object data stored in the information storage medium and reproduce the audio data with the video object data, using audio mapping data. Also, use of an audio list allows a user to select audio data according to a language and application of the audio data. Accordingly, it is possible to provide the user with audio data that is not recorded in the information storage medium, and further, allow the user to select one of audio data described in languages of various countries according to various applications. Description of Drawings
• FIG. 1 is a diagram of a unit of video object data linked to a plurality of audio data, stored in a Digital Versatile Disc (DVD);
• DVD Digital Versatile Disc
• FIG. 2 is a schematic block diagram of a reproducing apparatus according to an embodiment of the present invention.
• FIG. 3 is a block diagram of the reproducing apparatus of FIG. 2;
• FIG. 4 illustrates a logical structure of a DVD directory
• FIG. 5 illustrates a logical structure of a video object set
• FIG. 6 illustrates structures of Video ManaGer Information (VMGI) and Video Title Set Information (VTSI);
• VMGI Video ManaGer Information
• VTSI Video Title Set Information
• FIG. 7 is a diagram of Internet audio streaming
• FIG. 8 is a flowchart illustrating a method of reproducing information according to an embodiment of the present invention.
• FIG. 9 is a flowchart illustrating a method of reading audio mapping data via the Internet according to an embodiment of the present invention.
• FIG. 10 is a flowchart illustrating a method of reading audio mapping data via the Internet by executing a command stored in an information storage medium, according to an embodiment of the present invention
• FIG. 11 is a diagram of a structure of audio mapping data according to an embodiment of the present invention.
• FIG. 12 illustrates a structure of video object data stored in units of video clips
• FIG. 13 is a diagram illustrating a method of selecting audio data from an audio list according to a language or an application of audio data and reproducing the selected audio data with related video object data, according to an embodiment of the present invention
• FIG. 14 illustrates a structure of information listed in an audio list that allows a user to select audio data in a desired language, according to an embodiment of the present invention.
• FIG. 15 illustrates a structure of information listed in an audio list that allows a user to select audio data of a desired application, according to another embodiment of the present invention. Best Mode
• an information storage medium including video object data; and audio mapping data specifying a mapping relation between the video object data and audio data obtained via the Internet, wherein the audio data is reproduced together with a corresponding part of the video object data based on the audio mapping data.
• a reproducing apparatus including a reader reading video object data from an information storage medium, audio data via the Internet, and audio mapping data; a mapping processor processing information regarding a mapping relationship between the video object data and the audio data, and providing a relationship between the audio data and the video object data based on a result of the processing, the information being included in the audio mapping data; a decoder decoding the video object data and the audio data; and a data output unit outputting the decoded video object data with the decoded corresponding audio data, based on the audio mapping data.
• a method of reproducing information including reading video object data from an information storage medium, reading audio mapping data that specifies a mapping relationship between the video object data and audio data obtained via the Internet, reading the audio data mapped to the video object data via the Internet, based on the audio mapping data, and reproducing the video object data with corresponding audio data based on the audio mapping data.
• a conventional information storage medium such as a Digital Versatile Disc (DVD) does not allow video data stored therein to be reproduced together with audio data that is not stored in the information storage medium.
• DVD Digital Versatile Disc
• the present invention suggests an information storage medium allowing video data stored therein to be reproduced together with corresponding audio data that is not stored in the information storage medium, and an apparatus and method therefor.
• FIG. 2 is a schematic block diagram of a reproducing apparatus according to an embodiment of the present invention.
• the apparatus of FIG. 2 includes a reader 10Q a data decoder 12Q a data output unit 14Q a mapping processor 16Q and a markup language parser 180.
• the reader 100 reads video object data and audio data 2 and various data required for reproduction of the video object data and audio data 2 from an information storage medium or from a source external of the information storage medium such as via the Internet.
• the data decoder 120 decodes the video object data and audio data 2 read by the reader 100.
• the data output unit 143 outputs video object data and audio data 20 decoded by the data decoder 120.
• the mapping processor 160 processes audio mapping data 4 and provides the reader 100 with a command 31 that instructs the audio data 2 to be read by the reader 10Q and sends the data output unit 140 the audio mapping data 30 that defines the relationship between the video object data and audio data 2.
• audio data must be mapped to video object data so that it can be reproduced with the audio data.
• video object data and audio data are multiplexed and recorded in a file such that they have one to one correspondence.
• reproduction of audio data obtained from the source external of the information storage medium such as the Internet with video object data stored in an information storage medium requires information regarding a mapping relation between the audio data and the video object data.
• the present invention adopts audio mapping data that represents the mapping relation between video object data and audio data.
• the audio mapping data may be either stored in the information storage medium containing the video object data or distributed via the Internet after manufacture of the information storage medium.
• the markup language parser 180 parses it, and sends in- formation 41 regarding the address of the audio mapping data 4 to the reader 100 or sends mapping information 40 to the mapping processor 160.
• the markup language document generally names documents that are linked to a source made in a markup language or to which such a source is inserted, such as a HyperText Markup Language (HTML) and an extensible Markup Language (XML), a script language, and a Java language. Further, the markup language document includes a file linked to a document made in a markup language.
• FIG. 3 is a detailed block diagram of the reproducing apparatus of FIG. 2.
• data read by the reader 100 includes video object data, audio data, audio mapping data, audio list data, and a markup language document.
• DVD data is illustrated as the video object data for convenience. The DVD data is stored in a DVD in a particular format.
• Data read by the reader 100 is classified according to types and temporarily stored in a buffer 190.
• the mapping processor 160 processes audio mapping data 4.
• the audio list data is processed by an audio list data processor 164 to provide a menu from which a user can select a desired language in which audio is reproduced.
• FIG. 4 illustrates a logical structure of a DVD directory.
• a DVD stores a Video ManaGer (VMG) containing header information regarding all video titles, and three Video Title Set (VTS) VTS #1, #2, and #3.
• the VMG includes a Video ManaGer Information (VMGI) containing control data, a Video Object Set (VMGM0VOBS) area for a video manage menu that is linked to the VMG, and a VMGI BackUP (BUP).
• VMGI Video ManaGer Information
• VMGM0VOBS Video Object Set
• BUP VMGI BackUP
• the VTS area includes a Video Title Set Information (VTSI) containing the header information, a VOBS (VTSVLVOBS) for displaying a menu screen, a VTSTT_VOBS constituting a video title, and backup data of the VTSI area. Inclusion of the VTSM_VOBS in the VTS area is optional.
• VTSI Video Title Set Information
• VTSVLVOBS VOBS
• VTSTT_VOBS constituting a video title
• backup data of the VTSI area Inclusion of the VTSM_VOBS in the VTS area is optional.
• FIG. 5 illustrates a logical structure of a video object set.
• Each of video OBject Sets (VOBSs) constituting video data includes K VOBs.
• a VOB has M cells.
• Each cell has L Video Object Units (VOBUs).
• Each VOBU includes a navigation pack NV_PCK required to reproduce or search for a VOBU.
• an audio pack A_PCK, a video pack V_PCK, and a sub picture pack SP_PCK are multiplexed and recorded in the VOBU according to the ISO-13818 Motion Picture Expert Group (MPEG).
• MPEG Motion Picture Expert Group
• FIG. 6 illustrates structures of VMGI and VTSI.
• the VMGI and the VTSI contain user access information regarding a title, a chapter, or a Part-d-Title (PTT) of information stored in a DVD, and reproduction information for presentation thereof.
• the VMGI and the VTSI allow a user to access a desired title and a chapter or a PTT of the accessed title.
• a reproducing apparatus detects a ProGram Chain (PGC) and a ProGram (PG), which are reproduction units, and detects and reproduces a cell linked to the PGC or PG.
• PGC ProGram Chain
• PG ProGram
• Audio data may be read via the Internet at a time or read when corresponding video object data is reproduced using an audio streaming service.
• FIG. 7 is a diagram of Internet audio streaming.
• Internet audio streaming services that transmit audio data via the Internet have been developed.
• the audio streaming services allow a user to download audio data via the Internet and evaluate a piece of music.
• FIG. 8 is a flowchart illustrating a method of reproducing information according to an embodiment of the present invention.
• video object data is read from an information storage medium to reproduce the video object data together with audio data obtained via the Internet (S500).
• audio mapping data is read (S510).
• the audio data mapped to the read video object data is read via the Internet based on the audio mapping data (S520).
• the video object data is reproduced together with the corresponding audio data (S530).
• the sequence of S500 and S510 may be switched and the read audio mapping data is applicable to a plurality of other video object data. If audio data is read through an audio streaming service, S520 and S530 can be simultaneously performed.
• the audio mapping data may be read from the information storage medium, from another information storage medium, from a remote location, from another source, or via the Internet.
• the sources where the audio mapping data is read from are not limited to those described above and may encompass a plurality of other sources.
• FIG. 9 is a flowchart illustrating a method of reproducing audio mapping data obtained via the Internet according to an embodiment of the present invention.
• audio mapping data is read from an address set in a reproducing apparatus or stored in an information storage medium (S600).
• the read audio mapping data is parsed (S610).
• DVD video is reproduced together with audio data mapped to a part of the DVD video being reproduced, based on a result of parsing the audio mapping data (S620).
• the address of the audio mapping data is input directly from a user or has been read from the information storage medium.
• FIG. 10 is a flowchart illustrating a method of reading audio mapping data by executing a command recorded in an information storage medium.
• Predetermined commands may be stored in a format of a markup language document in the information storage medium.
• the reproducing apparatus reads the markup language document, parses it using the markup language parser 180 of FIG. 2, and executes the command included in the markup language document.
• the command is made in a format such as 'LoadAudioMap(url)', and executed to read audio mapping data recorded at an address of a site on the Internet, indicated by the parameter 'url' (S700). Then, the read audio mapping data is parsed (S710), and DVD video is reproduced together with audio data mapped to a part of the DVD video being reproduced (S720).
• FIG. 11 is a diagram of a structure of audio mapping data according to an embodiment of the present invention.
• the audio mapping data contains information regarding a language and application of the audio data, in addition to information regarding the corresponding audio data and video object data.
• DVD-video has a VMG and a plurality cf VTSs.
• the VMG includes a VMGM_VOBS
• the VTS includes a VTSM_VOBS and a plurality of VTSTT0VOBS.
• Each VOBS includes a group of cells that are logical units in which information is recorded in an information storage medium.
• the audio mapping data of FIG. 11 maps the respective VOBSs that are groups of cells to respective audio data.
• the audio mapping data can allow the audio data to be linked to the respective groups of cells or the respective cells.
• an audio data structure maps the respective VOBSs directly to audio data as shown in FIG. 11 or maps the respective VOBSs to audio Meta data that specifies locations and types of the respective audio data.
• the audio mapping data is either a markup language or an XML.
• a part of the audio mapping data of FIG. 11 can be described in the XML format as follows:
• Video object data may be stored in cell units or video clip units.
• FIG. 12 illustrates a structure of video object data stored in units of video clips.
• a video clip is a recording unit in which video object data is continuously recorded in the same area.
• the video clip is stored in a format of an Audio/Video (AN) stream obtained by compressing video object data.
• AN Audio/Video
• To reproduce the AV stream information regarding characteristics of the compressed video object data is recorded as clip information with the video clip.
• the clip information specifies the attributes of video object data of the respective clips and includes an entry point map that describes the location of an entry point allowing random access in predetermined units.
• the entry point becomes the location of an I picture where compression of an intra image starts, and the entry point map is mainly used for time-based search that detects the position of data in a time zone a predetermined length of time after starting of data reproduction.
• video object data is stored in units of video clips, there is a need of reproducing audio data corresponding to a part of the video object data.
• FIG. 12 illustrates structures of PlayLists and Playltems that are reproduction units of video object data stored in units of clips.
• the PlayList is a basic reproduction unit.
• a plurality of PlayLists are stored in an information storage medium.
• Each PlayList is linked to a plurality of Playltems.
• a Play Item corresponds to the entire clip or a part thereof and indicates starting and finishing times of reproduction of the clip. Accordingly, when reproducing a PlayList, a plurality of clips may be continuously reproduced or a part of a clip may be reproduced.
• audio data is mapped to the PlayList, the audio data can be reproduced with the part of the clip or the plurality of clips linked to the PlayList.
• Audio mapping data that maps audio data to video object data in units of PlayLists may be described in the XML format as follow:
• FIG. 13 is a diagram illustrating a method allowing a user to select audio data from an audio list according to a desired language and application of the audio data, and reproduce the audio data with video object data. More specifically, when respective video object data corresponds to a plurality of audio data recorded in languages of various countries, the method enables the user to select audio data recorded in a desired language. Also, when the user views a movie, the method allows the user to determine whether he/she will listen to the audio of the movie or a director's commentary audio regarding the making of the movie while reproducing a moving image.
• FIG. 14 illustrates a data structure of an audio list allowing a user to select a language in which audio data will be reproduced according to an embodiment of the present invention.
• the audio list lists the addresses of respective audio mapping data that are classified by the types of languages.
• a reproducing apparatus is capable of reading audio mapping data corresponding to the selected language.
• FIG. 15 illustrates a data structure of an audio list allowing a user to select audio data according to an application, according to an embodiment of the present invention.
• the audio list is configured such that the user can select one of audio of dialogues of a movie or commentary audio and can access audio mapping data for the selected application.
• the audio list may be recorded in a markup language in an information storage medium, and parsed and executed by a markup language parser 180 of FIG. 3.

Applications Claiming Priority (3)

Publications (1)

Family

ID=36123715

Family Applications (1)

Country Status (3)

Family Cites Families (2)

• 2004
  • 2004-08-03 EP EP04774255A patent/EP1652181A1/de not_active Withdrawn
  • 2004-08-03 JP JP2006522504A patent/JP2007501485A/ja active Pending
  • 2004-08-03 WO PCT/KR2004/001948 patent/WO2005013275A1/en active Application Filing

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events