Classifications

• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
  • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
  • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
  • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
  • G11B27/326—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is a video-frame or a video-field (P.I.P.)
• • 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
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
  • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
  • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
  • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
  • G11B27/34—Indicating arrangements 
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
  • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B2220/00—Record carriers by type
  • G11B2220/20—Disc-shaped record carriers
  • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
  • G11B2220/2537—Optical discs
  • G11B2220/2541—Blu-ray discs; Blue laser DVR discs

Definitions

• the present invention relates to recording and reproducing
• Optical discs are widely used as a recording medium capable
• high-density optical recording mediums such as a Blu-ray Disc
• Such a high-density optical recording medium which is based
• the present invention relates to a recording medium having a
• a primary video stream and a secondary video stream are stored in a data area of the recording
• the primary video stream represents a primary
• the management information includes composition information,
• composition information includes position information
• the position information may include vertical
• position information including a vertical position to display
• the position of the primary video stream is of the primary video stream.
• the position of the primary video stream is of the primary video stream.
• information may include horizontal position information
• composition As a still further example, the composition
• information may include scale information indicating a size to display the secondary video stream.
• the management information includes timing information, the timing information indicating a start
• the management information may
• the picture-in-picture timeline information include picture-in-picture timeline information.
• in-picture timeline information indicates whether the timing
• information refers to one of a timeline of a playitem and a
• the playitem indicates a playing
• a primary video stream and a secondary video stream In one embodiment, a primary video stream and a secondary video stream
• the primary video stream represents a primary
• the management information includes composition information,
• composition information includes scale information
• the present invention further relates to methods and apparatuses for recording picture-in-picture video data on a
• FIG. 1 is a schematic view illustrating an example in which
• FIG. 2 is a schematic diagram illustrating a structure of
• FIG. 3 is a schematic diagram illustrating a data recording structure of the optical disc as the recording medium
• FIG. 4 is a schematic diagram for understanding of the
• FIG. 5 is a block diagram illustrating the overall
• FIG. ⁇ is a block diagram schematically illustrating an
• FIG. 7 is a schematic diagram illustrating an exemplary
• FIG. 8 is a schematic diagram illustrating an exemplary
• FIG. 9 is a schematic diagram illustrating an exemplary
• FIGs. 1OA to 1OC are schematic diagrams for understanding of
• FIG. 11 is a schematic view illustrating an exemplary
• FIG. 12 is a schematic diagram illustrating an exemplary
• FIG. 13 is a flow chart illustrating an exemplary embodiment
• BD Blu-ray disc
• HD-DVD high-DVD
• Storage as generally used in the embodiments is a storage
• the storage is an element in which the user freely
• hard disk there are a hard disk, a system memory, a flash memory, and
• recording medium for example, a BD
• medium is externally-downloaded data.
• the recording medium for example, metadata
• original data the data stored in
• title defined in the present invention means a
• HDMV High Definition Movie
• FIG. 1 illustrates an exemplary embodiment of the combined
• the optical recording/reproducing apparatus 10 according to
• apparatus 10 may be designed to have recording and
• optical recording/reproducing apparatus 10 will be described in conjunction with, for
• BD-player for playback of a BD
• BD-recorder for playback of a BD
• apparatus 10 of the present invention may be a drive which
• the optical recording/reproducing apparatus 10 of the present invention not only has a function for recording and playback
• an optical disc 30 but also has a function for receiving an external input signal, processing the received signal, and
• representative external input signals may be digital
• Content provider CP
• Content provider CP
• Content provider CP
• Content provider CP
• Content provider CP
• Content provider CP
• Content provider CP
• a certain title may be recorded in an optical disc as
• audio stream of the original data may be generated.
• the audio stream may desire to download the audio stream (for example, Korean
• Data of any attribute may be used as additional data as long
• the original data and additional data must have file structures having a
• FIG. 2 illustrates a file structure for reproduction
• the file structure of the present invention includes a root directory, and at least one BDMV directory BDMV present under
• the JAR directory includes JAVA program files.
• the metadata directory META includes a file of data about
• Such a metadata file may
• Such metadata files are used for efficient search and
• the BD-J directory BDJO includes a BD-J object file for
• the auxiliary directory AUXDATA includes an additional data
• directory AUXDATA may include a "Sound. bdmv" file for
• the stream directory STREAM includes a plurality of files of
• a multiplexed stream of video/audio/graphic information is
• AV stream referred to as an "AV stream”.
• a title is composed of at
• the clip information (clip-info) directory CLIPINF includes
• a clip is indicative of data including both
• the playlist directory PLAYLIST includes a plurality of playlist files "*.mpls".
• Playlist means a combination of
• Each playing interval is
• Each of the playitems and subplayitems includes
• a playlist may be a combination of
• a process for reproducing data using at least one playitem in a playlist file is defined as
• subplayitem is defined as a "sub path".
• the sub path provides auxiliary presentation associated with
• Each playlist file should include
• Each playlist file also includes at least one
• file is a basic reproduction/management file unit in the
• PiP picture-in-picture
• the main path are mainly classified into three types. As to
• reproduced by the sub path i.e., secondary video streams
• reproduced by the sub path are multiplexed in a state separate from a clip to be
• the second type sub path is identical to the first type sub path in that secondary video streams to be
• reproduced by the sub path are multiplexed in a state
• the second type sub path is different from the first
• the presentation of the sub path can begin at any time on the time line of the main path. That is, the sub path is
• the backup directory BACKUP stores a copy of the files in the above-described file structure, in particular, copies of
• the disc for example, a copy of the index file "index. bdmv",
• the backup directory BACKUP is
• the present invention is not limited to the above-described names and locations. That is, the above-described
• FIG. 3 illustrates a data recording structure of the optical
• FIG. 3 recorded structures of information associated with
• the disc includes a file
• system information area recorded with system information for
• management area The file system
• FIG. 3 The areas of FIG. 3 are shown and described only for
• FIG. 4 is a schematic diagram for understanding of the
• the present invention provides a method for reproducing
• the present invention provides an optical image
• the video of the comments or episode is a
• the secondary video 420 can be reproduced simultaneously with the primary video 410, from
• the reproduction of the secondary video 420 may be begun at
• plurality of secondary videos 420 may also be implemented.
• the secondary videos 420 may be reproduced
• the primary video 410 can be reproduced
• reproduction size of the secondary video as well as
• optical recording/reproducing apparatus may
• the present invention provides a method
• FIG. 5 illustrates an exemplary embodiment of the overall
• the optical recording/reproducing circuit As shown in FIG. 5, the optical recording/reproducing circuit
• apparatus 10 mainly includes a pickup 11, a servo 14, a
• the pickup 11 reproduces original data and management data recorded in an
• the management data includes reproduction
• the servo 14 controls operation
• the signal processor 13 receives a
• signal processor 13 also modulates signals to be recorded,
• microprocessor 16 controls the operations of the pickup 11,
• the recording/reproducing unit reads data from an
• optical disc 30 or storage 15 under the control of a
• controller 12 and sends the read data to an AV decoder 17b.
• the recording/reproducing unit also receives an encoded
• the controller 12 downloads additional data present outside
• the controller 12 generates metadata for managing
• optical disc 30 along with associated video data.
• the optical recording/reproducing apparatus 10 further includes a playback system 17 for finally decoding data, and
• the playback system 17 includes an AV
• decoder 17b for decoding an AV signal.
• 17 also includes a player model 17a for analyzing an object
• the ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇
• player model 17a may be implemented as including the AV
• the playback system 17 is the
• the AV decoder 17b may include a plurality of decoders. FIG.
• the AV decoder 17b includes a primary
• video decoder 810a for decoding the primary video, and a
• the decoded primary video is output through a primary video
• secondary video is output through a secondary video plane
• controller 12 checks the metadata for managing reproduction
• decoder 810b in accordance with the metadata, to enable the
• video and/or secondary video may be stream data recorded in
• the recording medium namely, the optical disc 30, or may be
• the AV encoder 18 which is also included in the optical
• FIG. 7 is a schematic diagram explaining the playback system
• the playback system in accordance with the present invention, the playback system
• Playback system means a collective reproduction processing means which is configured by programs (software) and/or
• the playback system is a system which
• optical recording/reproducing apparatus but also can
• the playback system 17 may
• a user event manager 171 includes a user event manager 171, a module manager 172, a
• an HDMV module 174 an HDMV module 174, a BD-J module 175, a playback control engine 176, a presentation engine 177, and
• HDMV module 174 and BD-J module 175 has a control function
• module 174 and BD-J module 175 can separate an associated
• command or application from the hardware configuration of the playback system, to enable portability of the command or
• the HDMV module 174 includes a command processor 174a.
• VM 175 includes a Java Virtual Machine (VM) 175a, and an
• the Java VM 175a is a virtual machine in which an application
• the application manager 175b includes an
• the module manager 172 functions not ' only to send user commands to the HDMV module 174 and BD-J module 175,
• a playback control engine 174 and BD-J module 175.
• the playback control engine 176 includes playback
• GPRs purpose registers
• control functions 176a mean the playback control engine 176
• the HDMV module 174 and BD-J module 175 receive user commands
• HDMV module 174 and BD-J module 175 are identical to HDMV module 174 and BD-J module 175 .
• the user event manager 171 receives a user command generated through a user operation (UO) controller Ilia, the user event
• event manager 171 receives a user command generated through a
• the user event manager sends the received user
• the playback system 17 of the present invention may also be any one of the playback system 17 of the present invention.
• the metadata manager 173 includes a metadata manager 173.
• the metadata manager 173 can perform
• Metadata manager 173 can also provide, to the user, recording medium and title metadata.
• the module manager 172 HDMV module 174, BD-J module 175, and
• FIG. 8 illustrates an exemplary embodiment of the status memory units equipped in the optical recording/reproducing
• recording/reproducing apparatus 10 function as memory units
• player registers 17 ⁇ b may be classified into general purpose
• GPRs GPRs
• PSRs player status registers
• PSR stores a playback status parameter (for example, an
• optical recording/reproducing apparatus for example, a
• the stream number of the secondary video may be stored in one
• the PSR14 760 is included in the optical
• the PSR14 760 may store a flag representing whether
• presentation of the secondary video is enabled or disabled.
• the flag when the flag is set to an enabled state, the flag is set to an enabled state
• secondary video is decoded, and presented to the user through
• the flag may be varied by the user
• API API
• the PSR14 760 may also store the size of the secondary video.
• the presentation of the secondary video can be adjusted in size
• the secondary video can be adjusted to the
• PSR2 720 is used to specify which PG stream or Text ST stream
• PSR14 760 is set to a disabled state, or when no secondary
• PSR2 720 is used to specify which PG stream or Text ST stream
• the PSR2 720 may store a flag representing whether display of
• a PG TextST stream including a PiP PG TextST stream is
• PSR2 720 is set to an enable state, a specified PG TextST
• the PSR2 720 may also store a flag representing whether PiP
• the flag is used to represent which PG TextST stream number is used. For example, if the flag is set to
• the PG TextST stream number defined in the PSR2 720 is used when the current secondary video stream is displayed in
• the ⁇ PG TextST' is a PG
• the PG TextST stream defined in the PSR2 720 may
• the value of the flag may be changeable by a
• the PSRs may include a memory unit for storing information
• a PSR7 750 for example, a PSR7 750, and a memory unit for storing
• apparatus of the present invention can identify the playlist
• the PSRs may also include a memory unit for storing
• this memory unit (hereinafter, referred to as "PSR29 770") can represent whether or not a secondary video of an HD
• system applications for example, a BD-J application.
• recording/reproducing apparatus has a function for processing
• text subtitle The function for text subtitle may be
• This function may include, for example, user
• a PSR30 780 may be used.
• the player capability indication using a PSR may be implemented, the player capability indication using a PSR.
• FIG. 9 illustrates an exemplary embodiment of management data according to the present invention.
• use management data including information as to the
• reproduction attribute of the secondary video for example,
• reproduction position of the secondary video for example,
• management data is PiP metadata
• the metadata may be included in a playlist which is a kind of
• FIG. 9 illustrates PiP
• Metadata may include at least one block header ⁇ block_header[k] ' 910 and block data ⁇ block_data [k] ' 920.
• the block header 910 contains header
• the block header 910 may include a field indicating playitem
• ⁇ PlayItem_id [k] ' identifying information
• PlayItem_id [k] ' 910a has a value for a playitem of which STN
• PlayItem_id' value is given in the playlist block of the
• This field indicates a
• the block header 910 may also include information indicating types of a timeline to which the associated PiP metadata
• ⁇ pip_timeline_type' 910c refer (hereinafter, referred to as ⁇ pip_timeline_type' 910c) .
• FIGs. 1OA to 1OC are schematic diagrams for conceptual
• the block data 920 may include a time
• ⁇ pip_metadata_time_stamp' 921a.
• the ⁇ pip_timeline_type [k] ' 910c can be identified in accordance
• FIG. 1OA illustrates the case in which the PiP presentation
• ⁇ pip_metadata_time_stamp' refer to the timeline of the
• ⁇ pip_metadata_time_stamp' points to a presentation time from the interval that the associated subplayitem intervals are
• PiP metadata includes block data 920.
• the block data 920 includes at least one secondary video
• composition information (hereinafter, referred to as
• ⁇ pip_composition_inetadata' is valid in the interval from
• the secondary video composition information is information
• the secondary video Referring to FIG. 9, the secondary video
• composition information may include position information of
• ⁇ pip_scale f 92Id video
• ⁇ pip vertical position' 921c (hereinafter, referred to as ⁇ pip vertical position' 921c) .
• ⁇ pip vertical position' 921c an exemplary embodiment of the position
• ⁇ pip_horizontal_position' 921b represents a horizontal
• ⁇ pip_vertical_position' 921c represents a vertical position
• the display position of the secondary video on the screen is determined by the
• the size of the secondary video is determined by ⁇ pip_scale'
• size of the secondary video can be adjusted up to the size of
• the size of the secondary video may be
• the size of the secondary video may be any size.
• ⁇ xl' ⁇ xl/2' , ⁇ xl/4', or ⁇ xl/5' .
• FIG. 2 because the PiP presentation path is synchronous with
• the secondary video refers to the timeline of the main path because the secondary video
• the secondary video is reproduced according to the position
• video streams are reproduced along the timeline of the main path.
• FIG. 1OB illustrates the case in which the PiP presentation
• ⁇ secondary_video_time_stamp_id' 910b is usually the second type described in conjunction with FIG. 2 because the PiP
• presentation path is asynchronous with the main path.
• the secondary video is - - - -- / v u a g g y 38 reproduced through the sub path, irrespective of the
• secondary video refers to the timeline of the subplayitem.
• FIG. 1OC illustrates the case in which the PiP presentation
• FIG. 1OA the timeline of the playitem is referred to in the timeline type of FIG. 1OC. Accordingly, the reproduction
• ⁇ pip metadata time stamp [O]' is placed at the beginning point 101c of the interval of the playitem.
• ⁇ pip_metadata_time_stamp [i+1] ' is valid until the out time 104c of the current playitem.
• FIG. 2 because the PiP presentation path is asynchronous with
• FIG. 1OC it can be seen that, for example, when the
• FIG. 12 illustrates an exemplary embodiment of a table
• STN table defines a list of elementary
• optical recording/reproducing apparatus of the present invention The optical recording/reproducing apparatus of the present invention
• invention has functions for processing the secondary video
• the STN table of the present invention stores
• ⁇ secondary_video_stream_id' is initially set to ⁇ 0' , and is incremented by ⁇ l' unless the value of ⁇ secondary_video_stream_id' is equal to the number of
• the secondary video stream number is equal to a value
• a stream entry block 1260 is defined in the STN table in
• the stream entry block includes
• the stream number for the stream entry block is referred to by the stream number for the stream entry block.
• the stream entry block includes information for identifying the sub path
• the ⁇ pip_metadata_time_stamp' 921a refers to
• ⁇ pip_metadata_time_stamp' 921a may be considered to be time
• the STN table also contains information.
• the STN table also contains information.
• PiP_PG_textST_stream_id' is equal to a value obtained by
• the STN table of the playitem includes a ⁇ comb__info_Secondary_video_Secondary_audio' block 1270 in
• secondary audio stream information may include, for example,
• the STN table also includes a ⁇ comb_info__Secondary_video_PiP_PG_textST' block 1280 in
• ⁇ comb_info_Secondary_video_PiP_PG_textST" block 1280 includes
• textST' stream information may include, for example, the
• FIG. 13 illustrates an exemplary embodiment of a data
• recording/reproducing apparatus 10 of the present invention checks metadata for managing reproduction of the secondary
• the metadata includes information associated with
• FIG. 9. The controller 12 controls the secondary video
• decoder 810b to decode secondary video stream in accordance
• the metadata includes information
• composition information of the secondary video The
• composition information may include ⁇ pip horizontal position' 921b, ⁇ pip_vertical_position' 921c, and ⁇ pip_scale' 921d.
• the time information may include ⁇ PlayItem_id' 910a,
• decoder 810b decodes the secondary video at the time defined
• the primary video and secondary video may be supplied from the recording medium 30 or storage 15 to the associated
• videos to be reproduced may be supplied from the recording
• one of the primary and secondary videos may be copied to the storage 15, in order to

Landscapes

• Engineering & Computer Science (AREA)
• Multimedia (AREA)
• Signal Processing (AREA)
• Television Signal Processing For Recording (AREA)
• Signal Processing For Digital Recording And Reproducing (AREA)
• Management Or Editing Of Information On Record Carriers (AREA)
• Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Priority Applications (3)

Applications Claiming Priority (12)

Publications (2)

Family

ID=37683755

Family Applications (1)

Country Status (3)

Families Citing this family (1)

Citations (3)

• 2006
  • 2006-07-28 EP EP06769315A patent/EP1911026A2/en not_active Withdrawn
  • 2006-07-28 WO PCT/KR2006/002980 patent/WO2007013779A2/en active Application Filing
  • 2006-07-28 KR KR1020087005031A patent/KR20080036126A/ko not_active Application Discontinuation

Patent Citations (3)

Also Published As

Similar Documents

Legal Events