WO2003028028A1 - Method and apparatus for recording video data, and information storage medium thereby - Google Patents

Method and apparatus for recording video data, and information storage medium thereby Download PDF

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Publication number
WO2003028028A1
WO2003028028A1 PCT/KR2002/001801 KR0201801W WO03028028A1 WO 2003028028 A1 WO2003028028 A1 WO 2003028028A1 KR 0201801 W KR0201801 W KR 0201801W WO 03028028 A1 WO03028028 A1 WO 03028028A1
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WO
WIPO (PCT)
Prior art keywords
clip
file
navigation
recorded
video data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2002/001801
Other languages
French (fr)
Inventor
Sung-Wook Park
Jung-Wan Ko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to CA002461564A priority Critical patent/CA2461564C/en
Priority to JP2003531470A priority patent/JP2005504406A/en
Priority to EP02799505A priority patent/EP1430481A4/en
Priority to HU0401956A priority patent/HU229142B1/en
Priority to MXPA04002830A priority patent/MXPA04002830A/en
Priority to BR0212830-6A priority patent/BR0212830A/en
Priority to AU2002334437A priority patent/AU2002334437B2/en
Publication of WO2003028028A1 publication Critical patent/WO2003028028A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
    • 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
    • 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
    • G11B27/30—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 the same track as the main recording
    • G11B27/3027—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 the same track as the main recording used signal is digitally coded
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
    • 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
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/85—Television signal recording using optical recording on discs or drums

Definitions

  • the present invention relates to a method for recording video data, and more particularly, to a method and apparatus for receiving video data provided by a camcorder and recording the video data on an information storage medium, and an information storage medium thereby.
  • Background Art Camcorders have been widely used. However, camcorders record video data on a video tape in the format of digital video (DV). However, the video data recorded on the video tape can be only sequentially accessed but cannot be randomly accessed. Furthermore, it is not easy to freely edit the video data recorded on the video tape.
  • DV digital video
  • DV digital video
  • a method for recording video data ' on an information storage medium includes (a) recording video data in a digital video format received from a camcorder in a plurality of clip files, (b) recording navigation data to navigate the clip files in a clip navigation file, (c) recording a program navigation file which represent at least one said clip files and at least a part of the corresponding clip navigation file, and (d) recording program information which represents at least one of the program navigation files, in a manager file.
  • step (a) includes (a1 ) receiving a digital interface format (DIF) sequence that is packaged with an IEEE 1394 packet, and (a2) recording the digital interface format (DIF) sequence in which the IEEE 1394 packet is striped off, in the plurality of clip files, or recording the digital interface format (DIF) sequence, which is one of digital video (DV) 25 or 50 formats, and step (a) is recorded substantially in real-time.
  • step (b) includes recording mapping information which maps duration time information on a corresponding clip to address information in which video data belonging to the corresponding clip is recorded, in the clip navigation file.
  • step (c) includes recording an identifier of a corresponding clip file and start time and end time of duration of the corresponding clip file in the program navigation file.
  • a method for recording video data on an information storage medium includes (a) recording video data in a digital video format in a plurality of clip files in real-time,
  • step (b) includes recording mapping information which maps duration time information on a corresponding clip to address information in which video data belonging to the corresponding clip is recorded, in the clip navigation file, or recording a broadcasting format of the vide data received in step (a) in the clip navigation file, and the broadcasting format is an NTSC or PAL mode.
  • the apparatus includes a video interface which receives the video data, a recorder which records data on the information storage medium, and a controller which controls the recorder to let the recorder record video data inputted to the video interface in at least one clip file, to record navigation data to navigate the generated clip files in a clip navigation file, to record a program navigation file which represents at least one said clip files and at least a part of the corresponding clip navigation file, and to record program information which represents at least one of the program navigation file, in a manager file.
  • the video interface includes an IEEE 1394 port which receives an IEEE 1394 packet in which a digital interface format (DIF) sequence is packaged, and a buffer which stores the digital interface format (DIF) sequence in which the IEEE 1394 packet is striped off.
  • DIF digital interface format
  • the video interface receives a digital interface format (DIF) sequence, which is one of digital video (DV) 25 or 50 formats.
  • DIF digital interface format
  • the controller controls the recorder to let the recorder substantially record the video data received from the video interface in real-time and record mapping information which maps duration time information on a corresponding clip to address information in which video data belonging to the corresponding clip is recorded, in the clip navigation file.
  • controller controls the recorder to let the recorder record an identifier of a corresponding clip file and start time and end time of duration of the corresponding clip file in the program navigation file.
  • an information storage medium includes a plurality of clip files in which video data in the format of digital video received from a camcorder is recorded, a navigation file in which navigation data to navigate the clip files is recorded, a program navigation file in which navigation data which represents at least one said clip files and at least a part of the corresponding clip navigation file is recorded, and a manager file in which program information is stored in at least one of the program navigation file.
  • DIF digital interface format
  • IEEE 1394 packet is striped off, is recorded in the clip files, and a digital interface format (DIF) sequence, which is one of digital video (DV) 25 or 50 formats, is recorded in the clip files.
  • DIF digital interface format
  • mapping information which maps duration time information on a corresponding clip to address information in which video data belonging to the corresponding clip is recorded, is recorded in the clip navigation file.
  • an identifier of a corresponding clip file and start time and end time of duration of the corresponding clip file are recorded in the program navigation file.
  • a broadcasting format of video data recorded in the clip files is recorded in the clip navigation file, and the broadcasting format is an NTSC or PAL mode.
  • FIG. 1 is a block diagram of an apparatus for recording video data on an information storage medium according to a preferred embodiment of the present invention
  • FIG. 2 is a reference diagram illustrating an example of a file structure of an optical disc on which video data are recorded, according to the present invention
  • FIG. 3 is a reference diagram illustrating another example of the file structure of the optical disc on which video data are recorded, according to the present invention
  • FIG. 4 illustrates a data structure which corresponds to the file structure shown in FIG. 2
  • FIG. 5 illustrates a detailed structure of Program #n.ifo shown in FIG. 4
  • FIG. 6 illustrates a detailed structure of Clip #k.ifo shown in FIG. 4
  • FIG. 7 is a flow chart illustrating a method for recording vide data on an information storage medium.
  • FIG. 1 is a block diagram of an apparatus for recording video data on an information storage medium according to a preferred embodiment of the present invention.
  • the apparatus for recording video data on an information storage medium includes a controller 1 , a video interface 2, and a recorder 3.
  • the video interface 2 receives video data in the format of digital video (DV) that is recorded on a video tape, from a camcorder (not shown).
  • the video interface 2 may be implemented with an IEEE 1394 port and a buffer that are connected to the camcorder.
  • the video data in the format of DV is a digital interface format (DIF) sequence that is packaged with an IEEE 1394 packet, is inputted to the IEEE 1394 port and is stored in a buffer in the form of DIF sequence in which the IEEE 1394 packet is striped off.
  • DIF digital interface format
  • the controller 1 reads header information from the DIF sequence inputted to the video interface 2.
  • the header information is information on the inputted DIF sequence and includes an employed video format and an employed broadcasting format (i.e., national television standards committee (NTSC) mode/phase alternation line (PAL) mode). Further, the header information may include information required for decoding such as an employed compression method and resolution, and other information.
  • the controller 1 extracts at least a part of the header information and records the part of the header information on an optical disc 100, which is an information storage medium according to the present invention, through the recorder 3. In addition, the controller 1 generates navigation data required to search for or reproduce the video data, and records the navigation data on the optical disc 100 through the recorder 3.
  • FIG. 2 is a reference diagram illustrating an example of a file structure of an optical disc on which video data are recorded, according to the present invention.
  • a directory for real-time record is provided in a root directory.
  • Files in which the navigation data required to search for or reproduce the video data recorded on the optical disc 100 is recorded such as Manager. ifo, Program #1.ifo, . . . , Program #N.ifo, Clip #1.ifo, . . . , and Clip #M.ifo, are stored in the real-time record directory.
  • Files in which the video data is recorded such as Clip #1.VOB, . . . , and Clip #K.VOB, are further stored in the real-time record directory.
  • General information on the video data recorded on the optical disc 100 may be recorded in the file Manager. ifo.
  • the general information includes information such as the number of programs and duration time.
  • the navigation data for a number N of programs that are recorded on the optical disc 100 is recorded in the files Program #1.ifo, . . . , and Program #N.ifo.
  • the navigation data for each of at least one clip included in each program is recorded in the files Clip #1.ifo, . . . , and Clip #M.ifo.
  • the actual video data is recorded in the files Clip #1.VOB, Clip #K.VOB, and Clip #K+1 NOB.
  • Program and clip represent title and subtitle of the video data shown to a user, respectively.
  • program means a movie 'Gone with the Wind'
  • three clips belonging to the program 'Gone with the Wind' mean first, second, and third parts.
  • FIG. 3 is a reference diagram illustrating another example of the file structure of the optical disc on which video data are recorded, according to the present invention.
  • a directory for real-time record is provided in a root directory.
  • Files in which the navigation data required to search for or reproduce the video data recorded on the optical disc 100 is recorded such as Manager.ifo, Program. ifo, and Clip.ifo, are stored in the real-time record directory.
  • a file in which the video data is recorded, such as Clip.VOB, is further stored in the real-time record directory.
  • the navigation data for a number N of programs is divided into a number N of files and recorded
  • the navigation data is incorporated into one file and recorded.
  • the navigation data for a number M of clips is also incorporated into one file and recorded, and the clips in which the video data is recorded, are also incorporated into one file and recorded.
  • FIG. 4 illustrates the data structure which corresponds to the file structure shown in FIG. 2.
  • a number N of programs Program #1 , . . . , Program #n, . . . , and Program #N are recorded on the optical disc 100.
  • the program Program #n has a number M of clips
  • Clip #1 , . . . , Clip #m, . . . , and Clip #M For example, a program called 'Gone with the Wind' has three clips comprised of first, second, and third parts. Video data is recorded in predetermined units of clips Clip #1 NOB, Clip #k.VOB, . . . , Clip #K.VOB, and Clip #K+1 NOB.
  • the clips Clip #1 NOB, Clip #k.VOB, . . . , Clip #K.VOB, and Clip #K+1.VOB correspond to files Clip #1.ifo, . . . , Clip #k.ifo, . . . , Clip #K.ifo, and Clip #K+1.ifo in which navigation data is recorded.
  • Program #n.ifo represents video data belonging to each of the clips included in the program Program #n.
  • Video data belonging to the clip Clip #1 is recorded in the clip Clip #1 NOB.
  • Video data belonging to the clip Clip #M is recorded in the clips Clip #K.VOB and Clip #K+1.VOB.
  • the first part of the program 'Gone with the Wind' is recorded in the clip Clip #1.VOB, the second part thereof is recorded in the clip Clip #k.VOB, and the third part thereof is recorded in the clips Clip #K.VOB and Clip #K+1 NOB.
  • FIG. 5 illustrates a detailed structure of Program #n.ifo shown in FIG. 4. Referring to FIG.
  • Program #n an identifier ID of a corresponding clip and start time and end time of duration of the clip are recorded in Program #n.ifo.
  • Program information #n includes title, duration time, and other information Etc 1 and Etc2.
  • FIG. 6 illustrates a detailed structure of Clip #k.ifo shown in FIG. 4.
  • Bitstream information #k includes a video format and a broadcasting format.
  • the video format is a DIF sequence, which is video data provided by a camcorder
  • the video format may be recorded in the format of DV 25 and DV 50.
  • DV 25 represents a digital video 25 Mbps format
  • DV 50 represents a digital video 50 Mbps.
  • the video format is a MPEG transport stream other than the DIF sequence
  • the video format may be recorded in the format of MPEG.
  • the broadcasting format may be recorded in an NTSC or PAL mode.
  • the mapping information Time to Address Map which maps duration time information on the corresponding clip to address information in which video data belonging to the corresponding clip is recorded, is optional. This is because the position of the video data of the corresponding clip can be calculated from the video format and the broadcasting format even though there is no Time to Address Map.
  • FIG. 7 is a flow chart illustrating a method for recording vide data on an information storage medium.
  • the video interface 2 receives video data.
  • the controller 1 generates clips comprised of video data.
  • the controller 1 controls the recorder 3 to let the recorder 3 record each program in a data structure including at least one said clips. That is, the controller 1 generates navigation data corresponding to the data structure so as to search for or reproduce the recorded programs and controls the recorder 3 to let the recorder 3 record the programs on the optical disc 100.
  • step 703-1 the controller 1 generates navigation data for navigating, that is, reproducing, editing, and searching information on programs and records the navigation data.
  • step 703-2 the controller 1 generates navigation data for navigating, that is, reproducing, editing, and searching information on clips belonging to the programs and records the navigation data.
  • step 703-3 the controller 1 records navigation data for navigating, that is, reproducing, editing, and searching information on video data belonging to each clip recorded on the optical disc 100.
  • Step 703-1 includes generating navigation data including the number and title of programs and the size of data
  • step 703-2 includes generating navigation data for navigating, that is, reproducing, editing, and searching an identifier ID of a corresponding clip and start time and end time of duration of video data belonging to the corresponding clip
  • step 703-3 includes generating navigation data for navigating, that is, reproducing, editing, and searching a video format and a broadcasting format and navigation data for navigating, that is, reproducing, editing, and searching the recording position corresponding to the start time and end time.
  • the video data in the format of DV provided by a camcorder can be recorded on the information storage medium on which the video data can be randomly accessed, and the video data can be reproduced at a desired time. Further, the video data in the format of DV provided by the camcorder can be stored in the data structure in which the video data can be freely edited.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

Method and apparatus for recording video data on an information storage medium, and an information storage medium thereby are provided. The method includes (a) recording video data in a digital video format received from a camcorder in a plurality of clip files, (b) recording navigation data to navigate the clip files in a clip navigation file, (c) recording a program navigation file which represent at least one said clip files and at least a part of the corresponding clip navigation file, and (d) recording program information which represents at least one of the program navigation file, in a manager file. The video data in the format of digital video provided by the camcorder can be recorded on the information storage medium on which the video data can be randomly accessed, and the video data can be reproduced at a desired time.

Description

METHOD AND APPARATUS FOR RECORDING VIDEO DATA, AND INFORMATION STORAGE MEDIUM THEREBY
Technical Field The present invention relates to a method for recording video data, and more particularly, to a method and apparatus for receiving video data provided by a camcorder and recording the video data on an information storage medium, and an information storage medium thereby. Background Art Camcorders have been widely used. However, camcorders record video data on a video tape in the format of digital video (DV). However, the video data recorded on the video tape can be only sequentially accessed but cannot be randomly accessed. Furthermore, it is not easy to freely edit the video data recorded on the video tape.
Disclosure of the Invention
To solve the above problem, it is a first object of the present invention to provide a method and apparatus for recording video data in the format of digital video (DV) provided by a camcorder on an information storage medium on which the video data can be randomly accessed, and an information storage medium thereby.
It is a second object of the present invention to provide a method and apparatus for recording video data in the format of digital video (DV) provided by a camcorder on an information storage medium on which the video data can be freely edited, and an information storage medium thereby.
Accordingly, to achieve the above objects, according to one aspect of the present invention, there is provided a method for recording video data 'on an information storage medium. The method includes (a) recording video data in a digital video format received from a camcorder in a plurality of clip files, (b) recording navigation data to navigate the clip files in a clip navigation file, (c) recording a program navigation file which represent at least one said clip files and at least a part of the corresponding clip navigation file, and (d) recording program information which represents at least one of the program navigation files, in a manager file.
It is preferable that step (a) includes (a1 ) receiving a digital interface format (DIF) sequence that is packaged with an IEEE 1394 packet, and (a2) recording the digital interface format (DIF) sequence in which the IEEE 1394 packet is striped off, in the plurality of clip files, or recording the digital interface format (DIF) sequence, which is one of digital video (DV) 25 or 50 formats, and step (a) is recorded substantially in real-time. It is also preferable that step (b) includes recording mapping information which maps duration time information on a corresponding clip to address information in which video data belonging to the corresponding clip is recorded, in the clip navigation file.
It is also preferable that step (c) includes recording an identifier of a corresponding clip file and start time and end time of duration of the corresponding clip file in the program navigation file.
To achieve the above objects, according to another aspect of the present invention, there is provided a method for recording video data on an information storage medium. The method includes (a) recording video data in a digital video format in a plurality of clip files in real-time,
(b) recording navigation data to navigate the clip files in a clip navigation file, (c) recording a program navigation file which represents at least one said clip files and at least a part of the corresponding clip navigation file, and (d) recording program information which represents at least one of the program navigation files, in a manager file.
It is preferable that step (b) includes recording mapping information which maps duration time information on a corresponding clip to address information in which video data belonging to the corresponding clip is recorded, in the clip navigation file, or recording a broadcasting format of the vide data received in step (a) in the clip navigation file, and the broadcasting format is an NTSC or PAL mode. To achieve the above objects, according to another aspect of the present invention, there is provided an apparatus for recording video data in a digital video format received from a camcorder on an information storage medium.
The apparatus includes a video interface which receives the video data, a recorder which records data on the information storage medium, and a controller which controls the recorder to let the recorder record video data inputted to the video interface in at least one clip file, to record navigation data to navigate the generated clip files in a clip navigation file, to record a program navigation file which represents at least one said clip files and at least a part of the corresponding clip navigation file, and to record program information which represents at least one of the program navigation file, in a manager file.
It is preferable that the video interface includes an IEEE 1394 port which receives an IEEE 1394 packet in which a digital interface format (DIF) sequence is packaged, and a buffer which stores the digital interface format (DIF) sequence in which the IEEE 1394 packet is striped off.
It is also preferable that the video interface receives a digital interface format (DIF) sequence, which is one of digital video (DV) 25 or 50 formats.
It is also preferable that the controller controls the recorder to let the recorder substantially record the video data received from the video interface in real-time and record mapping information which maps duration time information on a corresponding clip to address information in which video data belonging to the corresponding clip is recorded, in the clip navigation file.
It is also preferable that the controller controls the recorder to let the recorder record an identifier of a corresponding clip file and start time and end time of duration of the corresponding clip file in the program navigation file.
To achieve the above objects, according to another aspect of the present invention, there is provided an information storage medium. The medium includes a plurality of clip files in which video data in the format of digital video received from a camcorder is recorded, a navigation file in which navigation data to navigate the clip files is recorded, a program navigation file in which navigation data which represents at least one said clip files and at least a part of the corresponding clip navigation file is recorded, and a manager file in which program information is stored in at least one of the program navigation file. It is preferable that a digital interface format (DIF) sequence in which the
IEEE 1394 packet is striped off, is recorded in the clip files, and a digital interface format (DIF) sequence, which is one of digital video (DV) 25 or 50 formats, is recorded in the clip files.
It is also preferable that mapping information which maps duration time information on a corresponding clip to address information in which video data belonging to the corresponding clip is recorded, is recorded in the clip navigation file. Specifically, it is more preferable that an identifier of a corresponding clip file and start time and end time of duration of the corresponding clip file are recorded in the program navigation file. Further, it is more preferable that a broadcasting format of video data recorded in the clip files is recorded in the clip navigation file, and the broadcasting format is an NTSC or PAL mode.
Brief Description of the Drawings
The above objects and advantages of the present invention will become more apparent by describing in detail preferred embodiments thereof with reference to the attached drawings in which:
FIG. 1 is a block diagram of an apparatus for recording video data on an information storage medium according to a preferred embodiment of the present invention;
FIG. 2 is a reference diagram illustrating an example of a file structure of an optical disc on which video data are recorded, according to the present invention;
FIG. 3 is a reference diagram illustrating another example of the file structure of the optical disc on which video data are recorded, according to the present invention; FIG. 4 illustrates a data structure which corresponds to the file structure shown in FIG. 2; FIG. 5 illustrates a detailed structure of Program #n.ifo shown in FIG. 4; FIG. 6 illustrates a detailed structure of Clip #k.ifo shown in FIG. 4; and FIG. 7 is a flow chart illustrating a method for recording vide data on an information storage medium.
Best mode for carrying out the Invention
Hereinafter, the present invention will be described in detail by describing a preferred embodiment of the invention with reference to the accompanying drawings. FIG. 1 is a block diagram of an apparatus for recording video data on an information storage medium according to a preferred embodiment of the present invention. Referring to FIG. 1 , the apparatus for recording video data on an information storage medium includes a controller 1 , a video interface 2, and a recorder 3. The video interface 2 receives video data in the format of digital video (DV) that is recorded on a video tape, from a camcorder (not shown). Actually, the video interface 2 may be implemented with an IEEE 1394 port and a buffer that are connected to the camcorder. The video data in the format of DV is a digital interface format (DIF) sequence that is packaged with an IEEE 1394 packet, is inputted to the IEEE 1394 port and is stored in a buffer in the form of DIF sequence in which the IEEE 1394 packet is striped off.
The controller 1 reads header information from the DIF sequence inputted to the video interface 2. The header information is information on the inputted DIF sequence and includes an employed video format and an employed broadcasting format (i.e., national television standards committee (NTSC) mode/phase alternation line (PAL) mode). Further, the header information may include information required for decoding such as an employed compression method and resolution, and other information. The controller 1 extracts at least a part of the header information and records the part of the header information on an optical disc 100, which is an information storage medium according to the present invention, through the recorder 3. In addition, the controller 1 generates navigation data required to search for or reproduce the video data, and records the navigation data on the optical disc 100 through the recorder 3.
FIG. 2 is a reference diagram illustrating an example of a file structure of an optical disc on which video data are recorded, according to the present invention. Referring to FIG. 2, a directory for real-time record is provided in a root directory. Files in which the navigation data required to search for or reproduce the video data recorded on the optical disc 100 is recorded, such as Manager. ifo, Program #1.ifo, . . . , Program #N.ifo, Clip #1.ifo, . . . , and Clip #M.ifo, are stored in the real-time record directory. Files in which the video data is recorded, such as Clip #1.VOB, . . . , and Clip #K.VOB, are further stored in the real-time record directory.
General information on the video data recorded on the optical disc 100 may be recorded in the file Manager. ifo. The general information includes information such as the number of programs and duration time. The navigation data for a number N of programs that are recorded on the optical disc 100, is recorded in the files Program #1.ifo, . . . , and Program #N.ifo. The navigation data for each of at least one clip included in each program is recorded in the files Clip #1.ifo, . . . , and Clip #M.ifo. The actual video data is recorded in the files Clip #1.VOB, Clip #K.VOB, and Clip #K+1 NOB. Program and clip represent title and subtitle of the video data shown to a user, respectively. For example, program means a movie 'Gone with the Wind', and three clips belonging to the program 'Gone with the Wind' mean first, second, and third parts.
FIG. 3 is a reference diagram illustrating another example of the file structure of the optical disc on which video data are recorded, according to the present invention. Referring to FIG. 3, a directory for real-time record is provided in a root directory. Files in which the navigation data required to search for or reproduce the video data recorded on the optical disc 100 is recorded, such as Manager.ifo, Program. ifo, and Clip.ifo, are stored in the real-time record directory. A file in which the video data is recorded, such as Clip.VOB, is further stored in the real-time record directory. Compared the file structure of FIG. 3 with that of FIG. 2, in the file structure of FIG. 2, the navigation data for a number N of programs is divided into a number N of files and recorded, whereas in the file structure of FIG. 3, the navigation data is incorporated into one file and recorded. The navigation data for a number M of clips is also incorporated into one file and recorded, and the clips in which the video data is recorded, are also incorporated into one file and recorded.
When the video data is divided into small files and recorded, it takes more time to search for a corresponding file, whereas if the corresponding file has been found out, a desired data can be immediately read. Conversely, when the video data is incorporated into one file and recorded, a corresponding file can be immediately found out, but even if the corresponding file has been found out, it takes more time to search for a desired data and to read it.
FIG. 4 illustrates the data structure which corresponds to the file structure shown in FIG. 2. Referring to FIG. 4, a number N of programs Program #1 , . . . , Program #n, . . . , and Program #N are recorded on the optical disc 100. The program Program #n has a number M of clips
Clip #1 , . . . , Clip #m, . . . , and Clip #M. For example, a program called 'Gone with the Wind' has three clips comprised of first, second, and third parts. Video data is recorded in predetermined units of clips Clip #1 NOB, Clip #k.VOB, . . . , Clip #K.VOB, and Clip #K+1 NOB. The clips Clip #1 NOB, Clip #k.VOB, . . . , Clip #K.VOB, and Clip #K+1.VOB correspond to files Clip #1.ifo, . . . , Clip #k.ifo, . . . , Clip #K.ifo, and Clip #K+1.ifo in which navigation data is recorded.
Program #n.ifo represents video data belonging to each of the clips included in the program Program #n. Video data belonging to the clip Clip #1 is recorded in the clip Clip #1 NOB. Video data belonging to the clip Clip #M is recorded in the clips Clip #K.VOB and Clip #K+1.VOB. For example, the first part of the program 'Gone with the Wind' is recorded in the clip Clip #1.VOB, the second part thereof is recorded in the clip Clip #k.VOB, and the third part thereof is recorded in the clips Clip #K.VOB and Clip #K+1 NOB. FIG. 5 illustrates a detailed structure of Program #n.ifo shown in FIG. 4. Referring to FIG. 5, an identifier ID of a corresponding clip and start time and end time of duration of the clip are recorded in Program #n.ifo. When there are a plurality of clips, an identifier of a corresponding clip and start time and end time of duration of the clip are provided for each clip. In addition, information Program information #n on a corresponding program #n is recorded in Program #n.ifo. Program information #n includes title, duration time, and other information Etc 1 and Etc2.
FIG. 6 illustrates a detailed structure of Clip #k.ifo shown in FIG. 4. Referring to FIG. 6, mapping information Time to Address Map which maps duration time information on a corresponding clip to address information in which video data belonging to the corresponding clip is recorded, and Bitstream information #k, which is information on a bit stream of the corresponding clip, are included in Clip #k.ifo. Bitstream information #k includes a video format and a broadcasting format. When the video format is a DIF sequence, which is video data provided by a camcorder, the video format may be recorded in the format of DV 25 and DV 50. DV 25 represents a digital video 25 Mbps format, and DV 50 represents a digital video 50 Mbps. When the video format is a MPEG transport stream other than the DIF sequence, the video format may be recorded in the format of MPEG. The broadcasting format may be recorded in an NTSC or PAL mode.
Here, the mapping information Time to Address Map which maps duration time information on the corresponding clip to address information in which video data belonging to the corresponding clip is recorded, is optional. This is because the position of the video data of the corresponding clip can be calculated from the video format and the broadcasting format even though there is no Time to Address Map.
A method for recording video data according to the present invention will be described on the basis of the above structure. FIG. 7 is a flow chart illustrating a method for recording vide data on an information storage medium. Referring to FIG. 7, in step 701 , the video interface 2 receives video data. In step 702, the controller 1 generates clips comprised of video data. In step 703, the controller 1 controls the recorder 3 to let the recorder 3 record each program in a data structure including at least one said clips. That is, the controller 1 generates navigation data corresponding to the data structure so as to search for or reproduce the recorded programs and controls the recorder 3 to let the recorder 3 record the programs on the optical disc 100.
In step 703-1 , the controller 1 generates navigation data for navigating, that is, reproducing, editing, and searching information on programs and records the navigation data. In step 703-2, the controller 1 generates navigation data for navigating, that is, reproducing, editing, and searching information on clips belonging to the programs and records the navigation data. In step 703-3, the controller 1 records navigation data for navigating, that is, reproducing, editing, and searching information on video data belonging to each clip recorded on the optical disc 100.
Step 703-1 includes generating navigation data including the number and title of programs and the size of data, step 703-2 includes generating navigation data for navigating, that is, reproducing, editing, and searching an identifier ID of a corresponding clip and start time and end time of duration of video data belonging to the corresponding clip, and step 703-3 includes generating navigation data for navigating, that is, reproducing, editing, and searching a video format and a broadcasting format and navigation data for navigating, that is, reproducing, editing, and searching the recording position corresponding to the start time and end time.
Industrial Applicability
As described above, according to the present invention, the video data in the format of DV provided by a camcorder can be recorded on the information storage medium on which the video data can be randomly accessed, and the video data can be reproduced at a desired time. Further, the video data in the format of DV provided by the camcorder can be stored in the data structure in which the video data can be freely edited.
While this invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

What is claimed is:
1. A method for recording video data on an information storage medium, the method comprising:
(a) recording video data in a digital video format received from a camcorder in a plurality of clip files;
(b) recording navigation data to navigate the clip files in a clip navigation file;
(c) recording a program navigation file which represent at least one said clip files and at least a part of the corresponding clip navigation file; and
(d) recording program information which represents at least one of the program navigation files, in a manager file.
2. The method of claim 1 , wherein step (a) comprises: (a1 ) receiving a digital interface format (DIF) sequence that is packaged with an IEEE 1394 packet; and
(a2) recording the digital interface format (DIF) sequence in which the IEEE 1394 packet is striped off, in the plurality of clip files.
3. The method of claim 1 , wherein the digital interface format
(DIF) sequence, which is one of digital video (DV) 25 or 50 formats, is recorded in step (a).
4. The method of claim 1 , wherein step (a) is recorded substantially in real-time.
5. The method of claim 1 , wherein step (b) includes recording mapping information which maps duration time information on a corresponding clip to address information in which video data belonging to the corresponding clip is recorded, in the clip navigation file.
6. The method of claim 1 , wherein step (c) includes recording an identifier of a corresponding clip file and start, time and end time of duration of the corresponding clip file in the program navigation file.
7. A method for recording video data on an information storage medium, the method comprising:
(a) recording video data in a digital video format in a plurality of clip files in real-time;
(b) recording navigation data to navigate the clip files in a clip navigation file;
(c) recording a program navigation file which represents at least one said clip files and at least a part of the corresponding clip navigation file; and
(d) recording program information which represents at least one of the program navigation files, in a manager file.
8. The method of claim 7, wherein step (b) includes recording mapping information which maps duration time information on a corresponding clip to address information in which video data belonging to the corresponding clip is recorded, in the clip navigation file.
9. The method of claim 7, wherein step (b) includes recording a broadcasting format of the vide data received in step (a) in the clip navigation file.
10. The method of claim 9, wherein the broadcasting format is an NTSC or PAL mode.
11. An apparatus for recording video data in a digital video format received from a camcorder on an information storage medium, the apparatus comprising: a video interface which receives the video data; a recorder which records data on the information storage medium; and a controller which controls the recorder to let the recorder record video data inputted to the video interface in at least one clip file, to record navigation data to navigate the generated clip files in a clip navigation file, to record a program navigation file which represents at least one said clip files and at least a part of the corresponding clip navigation file, and to record program information which represents at least one of the program navigation file, in a manager file.
12. The apparatus of claim 11 , wherein the video interface comprises: an IEEE 1394 port which receives an IEEE 1394 packet in which a digital interface format (DIF) sequence is packaged ; and a buffer which stores the digital interface format (DIF) sequence in which the IEEE 1394 packet is striped off.
13. The apparatus of claim 11 , wherein the video interface receives a digital interface format (DIF) sequence, which is one of digital video (DV) 25 or 50 formats.
14. The apparatus of claim 11 , wherein the controller controls the recorder to let the recorder substantially record the video data received from the video interface in real-time.
15. The apparatus of claim 11 , wherein the controller controls the recorder to let the recorder record mapping information which maps duration time information on a corresponding clip to address information in which video data belonging to the corresponding clip is recorded, in the clip navigation file.
16. The apparatus of claim 11 , wherein the controller controls the recorder to let the recorder record an identifier of a corresponding clip file and start time and end time of duration of the corresponding clip file in the program navigation file.
17. An information storage medium comprising: a plurality of clip files in which video data in the format of digital video received from a camcorder is recorded; a navigation file in which navigation data to navigate the clip files is recorded; a program navigation file in which navigation data which represents at least one said clip files and at least a part of the corresponding clip navigation file is recorded; and a manager file in which program information is stored in at least one of the program navigation file.
18. The medium of claim 17, wherein a digital interface format (DIF) sequence in which the IEEE 1394 packet is striped off, is recorded in the clip files.
19. The medium of claim 17, wherein a digital interface format (DIF) sequence, which is one of digital video (DV) 25 or 50 formats, is recorded in the clip files.
20. The medium of claim 17, wherein mapping information which maps duration time information on a corresponding clip to address information in which video data belonging to the corresponding clip is recorded, is recorded in the clip navigation file.
21. The medium of claim 17, wherein an identifier of a corresponding clip file and start time and end time of duration of the corresponding clip file are recorded in the program navigation file.
22. The medium of claim 17, wherein a broadcasting format of video data recorded in the clip files is recorded in the clip navigation file.
23. The medium of claim 22, wherein the broadcasting format is an NTSC or PAL mode.
PCT/KR2002/001801 2001-09-27 2002-09-24 Method and apparatus for recording video data, and information storage medium thereby Ceased WO2003028028A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA002461564A CA2461564C (en) 2001-09-27 2002-09-24 Method and apparatus for recording video data, and information storage medium thereby
JP2003531470A JP2005504406A (en) 2001-09-27 2002-09-24 Video data recording method, recording apparatus and information storage medium
EP02799505A EP1430481A4 (en) 2001-09-27 2002-09-24 METHOD AND APPARATUS FOR RECORDING VIDEO DATA AND CORRESPONDING INFORMATION STORAGE MEDIUM
HU0401956A HU229142B1 (en) 2001-09-27 2002-09-24 Method for recording video data in information storage medium, device for recording dv format video data from camcoder to information storage medium, and information storage medium
MXPA04002830A MXPA04002830A (en) 2001-09-27 2002-09-24 METHOD AND APPLIANCE FOR RECORDING VIDEO DATA, AND INFORMATION STORAGE MEDIA.
BR0212830-6A BR0212830A (en) 2001-09-27 2002-09-24 Process for recording video data in a storage media, apparatus for recording video data in a digital video format received from a recording camera in an information storage media, and information storage media
AU2002334437A AU2002334437B2 (en) 2001-09-27 2002-09-24 Method and apparatus for recording video data, and information storage medium thereby

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KR20010060239 2001-09-27
KR2001/60239 2001-09-27
KR1020020052287A KR100871850B1 (en) 2001-09-27 2002-08-31 Method and apparatus for recording video data, and information storage medium thereby
KR2002/52287 2002-08-31

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AU2002334437B2 (en) 2005-11-03
CN100412974C (en) 2008-08-20
PL368806A1 (en) 2005-04-04
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RU2274911C2 (en) 2006-04-20
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CA2461564A1 (en) 2003-04-03
US7903951B2 (en) 2011-03-08
HU229142B1 (en) 2013-09-30
RS50250B (en) 2009-07-15
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BR0212830A (en) 2004-10-13
EP1430481A4 (en) 2006-04-19

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