WO2002065768A1 - Appareil d'enregistrement d'informations audio/video et procede d'edition - Google Patents

Appareil d'enregistrement d'informations audio/video et procede d'edition Download PDF

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Publication number
WO2002065768A1
WO2002065768A1 PCT/JP2002/001296 JP0201296W WO02065768A1 WO 2002065768 A1 WO2002065768 A1 WO 2002065768A1 JP 0201296 W JP0201296 W JP 0201296W WO 02065768 A1 WO02065768 A1 WO 02065768A1
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WIPO (PCT)
Prior art keywords
data
file
video
data file
address
Prior art date
Application number
PCT/JP2002/001296
Other languages
English (en)
Japanese (ja)
Inventor
Mamoru Saitoh
Yasunari Kagawa
Original Assignee
Plannet Associate 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
Priority claimed from JP2001038447A external-priority patent/JP3566216B2/ja
Priority claimed from JP2001233626A external-priority patent/JP3566234B2/ja
Application filed by Plannet Associate Co., Ltd. filed Critical Plannet Associate Co., Ltd.
Publication of WO2002065768A1 publication Critical patent/WO2002065768A1/fr

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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
    • G11B27/34—Indicating arrangements 
    • 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
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215—Recordable discs
    • G11B2220/216—Rewritable discs
    • 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
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215—Recordable discs
    • G11B2220/218—Write-once discs
    • 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
    • G11B2220/2545—CDs
    • 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
    • G11B2220/20—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
    • G11B2220/2575—DVD-RAMs

Definitions

  • the present invention relates to a recording device and method for editing, recording, and reproducing a video signal and an audio signal on a digital video medium.
  • an audio-video information recording device that can automatically execute an authoring process
  • an audio-video information editing method that can easily and quickly execute an editing process such as deletion and insertion of a DVD video stream.
  • This refers to a method for editing audio-video information that can be converted to information recorded in the DVD video recording standard (DVD-VR standard) to information in the DVD video standard (DVD-VIDEO standard) in real time and played back or recorded.
  • This type of DVD Digital Video Disc
  • DVD Digital Video Disc
  • a multi-language function that allows you to select a desired language from multiple languages
  • Multi-angle function to select video from camera angle
  • multi-story function to select video and audio of desired story from multiple stories, extreme scenes according to viewers such as infants and minors
  • It has a parental lock function that can be pressed, and a multi-aspect function that allows you to select original wide images according to the type of monitor.
  • Such a DVD is provided to the user through a writing process of recording a signal to be recorded on the master disc and a replication process of mass-producing the master.
  • the various functions described above are edited. Skilled skills are required. For this reason, there has been a demand for the development of a simple DVD recorder that automatically records, for example, audio and video signals provided by television broadcasting with the various functions described above.
  • Figure 14 shows the data format recorded on DVD.
  • a plurality of VOBUs collectively form one chapter (for example, a group of scenes), and a plurality of chapters collectively form one title (for example, one movie). Is configured.
  • One VOBU includes a navigation pack that contains only navigation data (ie, data relating to audio and video data attributes and controls to be played back according to the DVD video standard).
  • the control data includes playback control information.
  • PCI Presentation Control Information
  • DSI Data Search Information
  • VOBU-SR I VOBU Search Information
  • the VOBU.SRI is a table in which the head address of the VOBU to be reproduced at a predetermined time t before and after the reproduction start time of the VOBU including the DSI is recorded. Therefore, the VOBU / SRI to be stored in one encoded VOBU is determined when the VOBU encoding ends after a predetermined time t has elapsed since the encoding of the VOBU.
  • the audio signal and the video signal are encoded at variable rates, and multiplexed for every 1 GOP, for example. Record in the storage device for each title.
  • navigation pack data conforming to the DVD video standard is also generated and recorded in the storage device.
  • the multiplexed encoded data recorded in the storage device and the navigation pack data recorded in the storage device are multiplexed and recorded as a DVD video stream in the storage device. .
  • the still images and moving images at the beginning of each chapter in the title are displayed as an index and can be played back from the user's desired chapter by selecting any still image or moving image.
  • the authoring process for the still image index and video index is performed by performing the first process and the second process shown in Fig. 16 and then, in the third process, splitting the chapter for each recorded title ⁇ chapter Processing such as generation of an index screen ⁇ editing of a chapter index screen is sequentially performed, and this is encoded and recorded in a storage device.
  • Such editing processing such as partial deletion and insertion of the DVD video stream is performed by first decoding the multiplexed DVD video stream and separating it into audio data and video data before multiplexing. Delete or insert the audio and video data in the section. Then, by encoding and multiplexing the audio data and the video data subjected to the deletion or insertion processing again, a target DVD video stream can be obtained.
  • deletion or insertion processing since the deletion or insertion processing is performed while the DVD video stream is decrypted, it is necessary to recalculate the navigation pack data such as time information and address information. However, there was a problem that the processing time was long.
  • DVD recording methods there are known a DVD video format mainly recorded on a DVD-ROM medium and a DVD video recording format mainly recorded on a DVD-RW medium.
  • the DVD video format consists of a collection of video object units (VOBUs) that start with a navigation pack (NVPCK) and include an integer number of GOPs.
  • the navigation pack contains data attributes and controls for audio and video. Data (navigation data).
  • the DVD video recording format does not have the above-mentioned navigation pack, and is used as a navigation data instead. And a time map of a video object for trick play, in which playback order is recorded, thereby executing playback control.
  • the present invention provides a digital audio / video information recording apparatus for recording audio and video signals provided from a television broadcast or other information source on a digital video medium while automatically and easily adding various functions.
  • the primary purpose is to
  • a second object of the present invention is to provide a method for editing audio / video information in which editing processing such as deletion and insertion of a DVD video stream can be executed easily in a short time.
  • the present invention converts the information recorded by the DVD video recording standard (DVD-VR standard) into the information of the DVD video standard (DVD-VIDEO standard) in real time, and converts the audio / video information that can be recorded or played back into S-video.
  • a third purpose is to provide editing methods.
  • encoding means for sequentially encoding each of a digital audio signal and a digital video signal, and at least the encoding means
  • Multiplexing means for sequentially multiplexing coded audio coded data, video coded data, and search data in fixed units, and recording for sequentially recording the data multiplexed by the multiplexing means.
  • Means, dummy data supply means for sequentially supplying dummy data as temporary search data when the search data is multiplexed by the multiplexing means, and multiplexed data recorded in the recording means.
  • a digital audio / video information recording apparatus comprising: a replacement unit for sequentially replacing the temporary search data of the multiplexed data in the unit in which the search data is determined with the determined search data. It is.
  • the digital audio signal and the digital video signal are sequentially encoded, and at least a fixed unit of encoded audio encoded data, video encoded data, and dummy data as temporary search data.
  • the multiplexed data is sequentially recorded every time, and the multiplexed data is sequentially recorded.
  • the provisional search data of the multiplex data in the unit where the search data is determined is converted to the determined search data.
  • a recording method of digital audiovisual information to be sequentially replaced is provided.
  • the digital audio / video information recording apparatus and recording method of the present invention when recording the input audio and video signals as a DVD video stream, dummy data is temporarily recorded in the search data. Since the data is sequentially replaced when the contents of the search data are determined, DVD video data can be automatically generated almost in real time.
  • encoding means for sequentially encoding each of a digital audio signal and a digital video signal, and encoding at least by the encoding means
  • Multiplexing means for sequentially multiplexing the encoded data of audio and the encoded data of video and search data in fixed units, and a chapter for sequentially dividing the multiplexed data for each chapter.
  • Division means recording means for sequentially recording the multiplexed data divided by the chapter division means
  • a still image at the head of each chapter is extracted from the multiplexed data recorded in the recording unit, decoded, adjusted to a predetermined size, combined with a chapter index screen, and recorded in the recording unit.
  • a recording device for digital audio / video information comprising: a screen editing means;
  • each of the digital audio signal and the digital video signal is sequentially encoded, and at least encoded audio encoded data and video encoded data and search data are sequentially multiplexed in fixed units.
  • This multiplexed data is sequentially divided for each chapter,
  • the divided multiplexed data is sequentially recorded
  • a method of recording digital audio / video information in which a still image at the head of each chapter is extracted from the recorded multiplexed data, decoded, adjusted to a predetermined size, and synthesized and recorded on a chapter index screen. Is done.
  • the leading still image of each chapter is extracted from the multiplexed data, decoded, adjusted to a predetermined size, and adjusted to the index of the chapter. Since a series of processing is automatically executed when the image is synthesized and recorded on the screen, it is possible to easily obtain DVD video information having a still image index.
  • encoding means for sequentially encoding each of a digital audio signal and a digital video signal, and at least the encoding means
  • Multiplexing means for sequentially multiplexing the coded data of the coded audio and the coded data of the video and the search data in fixed units, and a chapter for sequentially dividing the multiplexed data for each chapter Division means
  • recording means for sequentially recording the multiplexed data divided by the chapter division means
  • a second index screen editing unit that encodes the recorded decoded data and records the encoded data in the recording unit.
  • a recording device for video information is provided.
  • each of the digital audio signal and the digital video signal is sequentially encoded, and at least encoded audio encoded data and video encoded data and search data are sequentially multiplexed in fixed units.
  • This multiplexed data is sequentially divided for each chapter,
  • the divided multiplexed data is sequentially recorded
  • a moving image of a desired range at the head of the chapter is extracted and decoded, adjusted to a predetermined size, synthesized on the chapter index screen, and recorded.
  • a method for recording digital audiovisual information for encoding and recording recorded decoded data is provided.
  • the leading moving image of each chapter is extracted and decoded from the multiplexed data, adjusted to a predetermined size, and the index of the chapter is adjusted. Since a series of processing performed when the image is synthesized and recorded on the screen is automatically executed, DVD video information having a moving image index can be easily obtained.
  • a desired portion of an audio / video data stream multiplexed in DVD video format is deleted to obtain a new DVD video format audio.
  • a method for editing digital audio / video information for generating a video data stream comprising: (1) identifying a start point and an end point of a deleted portion in the data stream of the DVD video format; Storing the address data immediately before the start point and the address data immediately after the end point; (3) setting the data stream immediately before the start point of the deleted portion as a first data file, and immediately after the end point of the deleted portion.
  • Subsequent data streams Dividing the data stream before editing as a second data file; (4) start address data and end address data of the first data file; and start address of the second data file.
  • a method for editing audiovisual information is provided.
  • the present invention when a desired portion of a data stream in the DVD video format is deleted, processing is performed in the DVD video format without demultiplexing the data stream.
  • the address data at the connection point will be discontinuous, and this will need to be rewritten.
  • the front and rear parts of the deleted part are each one. Addresses in one data file are contiguous. Therefore, if the addresses of the start point and the end point are stored in advance in the file index, after combining both data files, the file index is referred to the start file address and the end point address of the rear file with simple logic. It can be rewritten.
  • data other than the address data of the data stream for example, data for fast forward / reverse fast reverse playback (hereinafter referred to as playback control data) is stored in the video object unit VOBU including the data. It contains address data of up to 120 seconds before and after the playback start time, for example, but if the front and rear parts of the deleted part are joined, the playback control data in the range of up to 120 seconds before and after the joining point will be incorrect. It is continuous. Therefore, the end point of the first data file and the start point of the second data file are combined so that the address data of the first data file and the address data of the second data file match.
  • the reproduction control data of the first data file and the reproduction control data of the second data file are rewritten. Rewriting the reproduction control data of the end point area of the first data file and the reproduction control data of the start point area of the second data file with reference to the file index so that Is more preferred.
  • the front part and the rear part of the deleted part are each treated as one data file, so that the reproduction control data in one data file is continuous.
  • the rewriting process of the reproduction control data only the area before and after the connection point is required, and other areas are not required. Therefore, if the playback control data of each start point and end point is stored in the file index in advance, after combining both data files, the playback control data of the area before and after the connection point is referred to by the file index, and the logic is simplified. Can be rewritten.
  • Such rewriting processing of the reproduction control data can be easily realized using a general-purpose CPU and memory, so that a dedicated editing device required for recalculating the navigation pack data is not required, and a plurality of processing steps by the recalculation are required. Can also be omitted, so that the processing time is shortened and the processing can be performed at low cost.
  • audio-video data of a DVD-video format is inserted into a desired portion of an audio-video data stream multiplexed in a DVD video format.
  • a digital audio / video information editing method for generating an audio / video data stream of a new DVD video format comprising: (1) specifying an insertion point in the data stream of the DVD video format; (2) storing the address data immediately before the insertion point and the address data immediately after the insertion point; and (3) storing the data stream immediately before the insertion point.
  • a method of editing digital audiovisual information comprising:
  • the present invention when inserting a data stream into a desired portion of a data stream in the DVD video format, processing is performed in the DVD video format without demultiplexing the data stream.
  • the address data at the two connection points will be discontinuous, and this will need to be rewritten.
  • the addresses in one data file are continuous because the front part, the rear part, and the insertion part of the insertion point are each treated as one data file. Therefore, if the addresses of the start point and the end point are stored in the file index in advance, after combining the three data files, the file index is referred to the end point of the rear file from the start address of the input file. Up to the address can be rewritten with a simple mouthpiece.
  • the reproduction control data other than the address data of the data stream may be up to, for example, 120 seconds before and after the reproduction start time of the video object VOBU including the data.
  • the playback control data within a maximum of 120 seconds before and after the two connection points will be discontinuous. For this purpose, the end point of the first data file and the start point of the data file to be inserted are combined, and the end point of the data file to be imported and the start point of the second data file are combined,
  • the data to be inserted is referred to by referring to the file index so that the address data of the first data file, the address data of the data file to be inserted, and the address data of the second data file match. After rewriting the address data of the data stream of the file and the address data of the data stream of the second data file,
  • the file index is referred to so that the reproduction control data of the first data file, the reproduction control data of the data file to be inserted, and the reproduction control data of the second data file are matched. Rewriting the reproduction control data of the end point area of the first data file, the start point area and the end point area of the data file to be imported, and the reproduction control data of the start point area of the second data file. It is more preferable to further have
  • the front part, the rear part, and the insertion part of the insertion point are each treated as one data file, so that the reproduction control data in one data file is continuously recorded.
  • the rewrite processing of the reproduction control data requires only the area before and after the two connection points, and does not require the other areas. Therefore, if the playback control data of the start point and end point of each file is stored in the file index in advance, after the three data files are combined, the playback control of the area before and after the two joining points is performed by referring to the file index. Control data can be rewritten with simple logic.
  • Such rewrite processing of playback control data can be easily realized using a general-purpose CPU and memory, so it is necessary to recalculate navigation pack data. No editing equipment is required, and a plurality of processing steps by recalculation can be omitted, so that processing time is reduced and processing can be performed at low cost.
  • a desired portion of an audio / video data stream multiplexed with a DVD video format is deleted, and the desired portion is deleted.
  • a digital audio / video information editing method for generating an audio / video data stream of a new DVD video format by inserting the audio / video data stream into a DVD video format wherein: (2) a step of specifying an insertion point in the data stream of the DVD video format; and (3) an address data immediately before a start point of the deleted portion and an address immediately after the end point.
  • the file index of the second data file is referred to by referring to the file index so that the address data of the first data file and the address data of the second data file match.
  • the present invention is an editing method in which a desired portion of the same data stream is deleted, and this is inserted into another portion, and has the same operational effects as the above-described first and second aspects of the invention.
  • the reproduction control data other than the address data of the data stream can also be deleted and inserted and combined with the file to obtain the reproduction control data in the range before and after the deletion point and the insertion point.
  • the end point of the first data file and the start point of the second data file are combined, and the address data of the first data file and the address data of the second data file match.
  • the reproduction control data of the first data file and the second data file are rewritten.
  • the end point of the first data file by referring to the file index so that the reproduction control data is consistent.
  • the data to be inserted is referred to by referring to the file index so that the address data of the third data file, the address data of the data file to be inserted, and the address data of the fourth data file match.
  • reproduction control data of the third data file, reproduction control data of the data file to be imported, and reproduction control data of the fourth data file are matched.
  • the method further comprises a step.
  • the present invention also has the same functions and effects as the inventions according to the fourth and fifth aspects described above.
  • an audio / video data stream multiplexed in a DVD video recording format is converted into a DVD video format.
  • a method for editing digital audio / video information to be reproduced and / or recorded comprising: (1) a step of reading a data stream of the DVD video recording format and extracting reproduction control data; and (2) a step of extracting the reproduction control data. Generating playback control data of the DVD video format based on the playback control data; and (3) multiplexing the generated playback control data with the data stream of the DVD video recording format.
  • a method for editing digital audiovisual information comprising:
  • the method further comprises: a step of decoding the multiplexed audio / video data into an audio signal and a video signal, respectively; and a step of reproducing the decoded audio signal and video signal. it can.
  • the method may further include a step of recording the multiplexed audio / video data on a recording medium.
  • a navigation pack is generated based on the playback control data of the DVD-Video recording format data stream.
  • playback control data is extracted and based on the extracted playback control data. Then, it generates playback control data of the DVD video format, that is, navigation packs. Then, the generated reproduction control data is multiplexed with the data stream of the DVD video recording format read in advance.
  • the process of extracting the playback control data from the data stream of the DVD video recording format and the process of generating the navigation pack based on the extracted playback control data can be realized with simple logic. Therefore, a DVD-VR data stream can be easily played back on a DVD-VIDEO playback device using a general-purpose CPU and memory without providing a dedicated device.
  • FIG. 1 is a block diagram showing a recording apparatus for digital audiovisual information according to a first aspect of the present invention
  • FIG. 2 is a block diagram showing a digital audio / video information recording apparatus according to a second aspect of the present invention
  • FIG. 3 is a block diagram showing a digital audio / video information recording apparatus according to a third aspect of the present invention.
  • FIG. 4 is a process diagram showing an embodiment of the digital audio / video information recording apparatus of the present invention.
  • FIG. 5 is a conceptual diagram for explaining real-time authoring processing of search information according to the present invention.
  • FIG. 6 is a block diagram and a timing chart for explaining a real-time authoring process of search information according to the present invention.
  • FIG. 5 is a conceptual diagram for explaining the real-time authoring processing of still image indices according to the present invention.
  • FIG. 8 is a block diagram for explaining a real-time authoring process of a still image index according to the present invention.
  • FIG. 9 is a diagram showing an example of a chapter index screen according to the present invention.
  • FIG. 10 illustrates a real-time authoring process of a moving image index according to the present invention.
  • FIG. 11 is a conceptual diagram for explaining a real-time authoring process of a video index according to the present invention.
  • FIG. 12 is a block diagram and a timing chart for explaining a real-time authoring process of a moving image index according to the present invention.
  • FIG. 13 is a block diagram for explaining a real-time authoring process of a moving image index according to the present invention.
  • FIG. 14 is a diagram showing a data format recorded on a DVD
  • FIG. 15 is a conceptual diagram illustrating a conventional search information authoring process.
  • FIG. 16 is a conceptual diagram showing a conventional still / moving image index authoring process
  • FIG. 17 is a diagram showing a TV monitor for explaining a deletion editing method of the present invention
  • FIG. 19 is a diagram showing a data format for explaining the delete / edit method of the present invention.
  • FIG. 20 is a diagram showing a TV monitor for explaining the insertion / editing method of the present invention.
  • FIG. 21 is a diagram showing a data format and a file index for explaining the import / editing method of the present invention.
  • FIG. 22 is a data format for explaining another insertion / editing method of the present invention.
  • FIG. 23 is a diagram showing a data format for explaining the insertion / editing method of the present invention.
  • FIG. 24 is a block diagram showing a DVD-VR playback device of the present invention.
  • FIG. 25 is a block diagram showing another DVD-VR playback device of the present invention.
  • FIG. 26 is a block diagram showing still another DVD-VR playback device of the present invention
  • FIG. 27 is a diagram showing a DVD-VI DEO format.
  • FIG. 4 is a block diagram showing an embodiment in which the digital audio / video information recording apparatus of the present invention is applied to an audio / video server (hereinafter, also referred to as an AV server).
  • the AV server 100 of the present embodiment records and reproduces an audio signal and a video signal provided in a television broadcast or the like while encoding and multiplexing them in real time. At this time, the search information and still image or moving image index screen are automatically added.
  • the source that supplies audio information and video signals is not limited to television broadcasting, but can take in information from any source, such as digital broadcasting and information exchange via telephone lines.
  • an analog audio signal and an analog video signal input from the external input terminal are converted into digital audio signals and digital video signals by analog / digital converters 101 and 102, respectively, and are sent to a data selector 103. Sent out.
  • the data selector 103 has an input terminal of an antenna for receiving a terrestrial signal, an input / output terminal of a public line for receiving signals from the Internet, and an input / output terminal of Ethernet Ethernet.
  • Information can be input and output from the input and output terminals of the IEEE 1394 interface.
  • the digital audio signal and the digital video signal selected by the data selector 103 are sent to an MPEG 2 encoder processor 104 (corresponding to the encoding means of the present invention; hereinafter, simply referred to as an MPEG 2 encoder).
  • the audio signal and the video signal are encoded and multiplexed for each GOP, for example, and then recorded in the storage device for each title.
  • navigation pack data conforming to the DVD video standard is also generated, and these are recorded in a storage device as a DVD video stream.
  • the AV server 100 of the present embodiment executes a real-time authoring process for the search information and a real-time authoring process for the still image index or the moving image index. This will be described later.
  • the DVD stream data generated by the MPEG2 encoder 104 is recorded on a hard disk drive 106, which is a recording unit of the present invention, via a storage interface 105.
  • the storage interface 105 records data on the hard disk drive 106, reads data recorded on the hard disk 106, and sends the data to the address / data path 113 and the reproduction FIFO memory 107.
  • the storage interface 105 includes DVD-RAM, DVD-W, DVD-R108 and CD-R, CD-RW109 as external devices (front-end dry puts). Can be connected, and the data recorded on the hard disk drive 106 can be recorded on a medium such as a DVD or a CD. In addition, the data streams recorded on these mediums can be imported and edited into a desired data stream, Data streams recorded in VR format can be read and played.
  • the data recorded in the reproduction FIFO memory 107 is sent to an MPEG2 decoder processor 110 (corresponding to the decoding means of the present invention; hereinafter, simply referred to as an MPEG2 decoder), or a selector.
  • the data is sent to the graphic accelerator 112 by the switching of 111.
  • the MPEG2 decoder 110 decodes the DVD stream data into a digital audio signal and a digital video signal, and sends out the data to the data selector 103. Then, these digital audio signals and digital video signals are decoded into analog audio signals and analog video signals by the digital / analog converters 114, 115, transmitted to the TV monitor 116, and reproduced here. .
  • the address / data bus 113 includes an MPEG2 encoder 104, a storage interface 105, a system controller 117, a flash memory 118, a memory 119, and the above-described graphic accelerators 112, an MPEG2 decoder. Connect coder 1 10 to transfer data.
  • the system controller 117 automatically executes the following authoring processing according to the program stored in the flash memory 118, and executes the editing processing described later. Real-time authoring of search information
  • the AV server 100 encodes and multiplexes audio and video at a variable rate according to the DVD video standard and records the multiplexed data on the hard disk drive 106.
  • Automatically authoring That is, the data (VOBU * SRI) for the fast forward and reverse fast reverse reproduction described above is embedded in real time during recording.
  • FIG. 6 shows the main hardware configuration extracted from the block diagram of FIG. 4, and FIG. 5 schematically shows the concept of the authoring process.
  • the configuration that functions in the process of automatically embedding this search information VOBU / SRI is, as shown in the upper diagram of FIG. 6, an MPEG2 encoder 104 that executes code and multiplexing processes, and a DVD.
  • SDRAM 104m for buffering video stream data, data search control information DSI and dummy data associating dummy data with buffer memory 119, hard disk drive 106, writing to and reading from hard disk drive 106 Buffer memory 105m at the time of playback, a playback FI FQ memory 107 for reading and playing the replaced DVD stream data recorded on the hard disk drive 106, and an MP EG 2 decoder 110 for executing decoding processing. .
  • each of the audio digital signal and the video digital signal input to the MPEG 2 encoder 104 is encoded at a variable rate by the MPEG 2 encoder module and encoded audio data and
  • the video data is multiplexed at regular intervals (in this example, the minimum unit GOP of an image that can be reproduced independently defined in the MPEG 2 standard). This is indicated by 501 in FIG.
  • the generation of the navigation pack data N conforming to the DVD video standard is performed.
  • the navigation pack information that is determined at the same time when encoding of one GOP is completed is embedded.
  • Undetermined, for example, VOBU.SRI information embeds dummy data n. N + 1, n + 2, ... to generate DVD video stream data.
  • the DVD video stream data is indicated by 502 in FIG. 5 and is recorded on the hard disk drive 106.
  • VOBU / SRI information is generated (just before the completion of one GOP in the timing chart of FIG. 6).
  • this VOB U 'SRI information is determined Then, the VOBU / SRI information temporarily embedded in the hard disk drive 106 is sequentially overwritten via the map of the memory 119 (# 5 in the timing chart of FIG. 6).
  • the GOP that has been overwritten in this way and in which the confirmed VOBU-SRI information is embedded can be played back, forward-forwarded, and reverse-fast-returned even during recording.
  • An example of a data format in which the provisionally embedded dummy data is replaced with the determined VOBU * SRI is shown by 503 in FIG. This data is decoded by the MPEG2 decoder 110 and can be viewed on the TV monitor 116 even during recording.
  • the AV server 100 encodes and multiplexes audio and video at a variable rate in accordance with the DVD video standard and records it on the hard disk drive 106. Images are displayed in a list on the chapter index screen, and a function for directly searching for a chapter by selecting a desired still image on the chapter index screen is automatically authored in real time. In other words, the user can obtain audiovisual information having a still picture chapter index screen without performing any operation.
  • FIG. 7 schematically shows the concept of the authoring process
  • the upper diagram of FIG. 8 shows the main hardware configuration extracted from the block diagram of FIG.
  • the configuration that functions in the process of automatically generating the still image index screen is, as shown in the upper diagram of Fig. 8, an MPEG2 encoder 104 that performs encoding and multiplexing processes, and a buffer for DVD video stream data.
  • the MPEG2 decoder 110 performs a decoding process.
  • each of the audio digital signal and video digital signal input to the MPEG 2 encoder 104 is encoded at a variable rate by the MPEG 2 encoder module, and the encoded audio data and video data are encoded.
  • are multiplexed at regular intervals in this example, the minimum unit GOP of an image that can be played back independently defined in the MPEG 2 standard.
  • navigation pack data N conforming to the DVD video standard is generated (as described above, navigation pack information determined at the same time that encoding of one GOP is completed is embedded, but is not embedded.
  • VOBU / SRI information embeds dummy data n. N + 1, n + 2, ... to generate DVD video stream data).
  • VOBU.SRI information is generated each time one GOP is encoded. Each time this VOBU / SRI information is determined, the hard disk drive 10 The VOBU 'SRI information temporarily embedded in 6 is overwritten sequentially. Also, a plurality of GOPs whose VOB U and SR I have been overwritten and determined are automatically divided into chapters at regular intervals and recorded on the hard disk drive 106.
  • the first still image of each chapter is read out from the DVD video stream data recorded on the hard disk drive 106 to the FIFO memory 105m, and this is used for playback.
  • the data is transferred to the graphic accelerator 112 via the FIFO memory 107.
  • the leading still images of multiple chapters are incorporated into the TV monitor, so the transferred still image data has a size equivalent to one chapter index screen.
  • the image is reduced by the graphic accelerator 1 1 2 and synthesized on the index screen.
  • the navigation command for screen transition is embedded in the navigation pack data of one index screen (in the example of FIG. 9, 12 chapters), and at the same time, The screen transition icon is composited with the screen.
  • the reduced index screen data is sent to the MPEG2 encoder 104, where it is encoded and recorded on the hard disk drive 106.
  • the chapter index screen thus authored is realized by reading the DVD video stream data of the index screen recorded on the hand disk drive 106.
  • the AV server 100 encodes and multiplexes audio and video at a variable rate in accordance with the DVD video standard and records it on the hard disk drive 106. Is displayed in a list on the chapter index screen, and a function for directly searching for a chapter by selecting a desired moving image on the chapter index screen is automatically performed in real time. That is, the user can obtain audiovisual information having a moving picture chapter index screen without performing any operation.
  • FIGS. 10 and 11 schematically show the concept of the authoring process
  • the upper diagrams of FIGS. 12 and 13 show the main hardware configuration extracted from the block diagram of FIG.
  • the configuration that functions in the process of automatically generating the video index screen is, as shown in Figs.
  • an MPEG2 encoder 104 that executes encoding and multiplexing processes, a DVD video SDRAM 104m for buffer of stream data, hard disk drive 106, FIFO memory 105m for buffer when writing to and reading from the relevant hard disk drive 106, leading video of each chapter recorded in hard disk drive 106 to appropriate size
  • a graphic accelerator 112 to be adjusted a reproduction FIFO memory 107 for reading and reproducing DVD stream data recorded on the hard disk drive 106, and an MPEG2 decoder 110 for executing decoding processing.
  • each of the audio digital signal and the video digital signal input to the MPEG2 encoder 104 is encoded at a variable rate by the MPEG2 encoder module, and the encoded audio data and video data are encoded. It is multiplexed at regular intervals (in this example, the minimum unit GOP of an image that can be played back independently defined in the MPEG 2 standard).
  • navigation pack data N conforming to the DVD video standard is generated. (As described above, although the napping pack information fixed at the same time as encoding of one GOP is completed, it is embedded, Undetermined, for example, VOBU / SRI information embeds dummy data n. N + 1, n + 2, ... to generate DVD video stream data).
  • VOBU / SRI information is generated each time one GOP is encoded, but every time this VOBU / SRI information is determined, it is provisionally stored in the hard disk drive 106 via the map of the memory 119. Overwrite the VOBU / SRI information embedded in the file. Also, a plurality of GOPs whose VOB U and SRI are overwritten and determined are automatically divided into chapters at regular intervals and recorded on the hard disk drive 106.
  • a video of the desired range (for example, 30 seconds) at the beginning of each chapter from the DVD video stream data recorded on the hard disk drive 106 is recorded in the FIFO format.
  • the data is read out to the memory 105 m and transferred to the MPEG 2 decoder 110 via the reproduction FIFO memory 107, where normal reproduction is performed.
  • the index moving image is reproduced one frame at a time for each normal reproduction and transmitted to the graphic accelerator 112.
  • the leading image as the moving image index may be extracted by time as shown in the above example, or may be detected up to the end of a scene and the range thereof may be extracted. Further, these extraction ranges can be made variable.
  • the leading index of multiple chapters is incorporated into the TV monitor as shown in Fig. 9, so the graphic index is set so that the transferred video data has a size equivalent to that of one chapter index screen. Reduce by the accelerator 1 12 and compose it on the index screen. Also, if the index screen has multiple screens In this case, the navigation command for screen transition is embedded in the navigation pack data of one index screen (12 chapter in the example of Fig. 9), and at the same time, the icon for screen transition is combined with the previous index screen.
  • the data recorded here is a digital video format.
  • the chapter index screen that has been authored in this way is realized by reading the DVD video stream data of the index screen recorded on the hard disk drive 106.
  • the combined index screen data is recorded on the hard disk drive 106 in digital video format, and when the processing of all the chapters is completed, the digital video format data is converted to DVD format.
  • the MPEG2 encoder 104 is running until all chapters are completed, so if you add another MPEG2 encoder, it will be recorded in digital video format. It can be directly converted to the DVD video format in real time without having to do this. This is also within the scope of the present invention.
  • the AV server 100 of the present embodiment is a DVD server of the multiplexed DVD video format. Any part of the data stream can be deleted, and the remaining data streams can be combined to create a new DVD video format data stream. For example, you can remove wasted or serious scenes from a movie stream, or remove commercials from a stream captured from a television broadcast.
  • the deletion and editing procedure will be described with reference to FIGS.
  • the AV server 100 is set to the delete / edit mode, and the DVD video format data stream is reproduced on the TV monitor 116.
  • the playback screen is set at the upper right of the TV monitor 116
  • the playback time axis of the stream is displayed under the playback screen
  • the deletion is displayed at the upper left of the TV monitor 116.
  • Still images of the start and delete end are displayed side by side.
  • the AV server 100 is provided with a delete start button, a delete end button, a delete execution button, a delete cancel button, and an edit execution button that function in the delete / edit mode.
  • VOB 1 is stored in the file index of the memory 119 (see FIG. 18 (G)). Note that since the PGC-PG map included in the stream shown in FIG. 18 (F) is also stored in this memory 119, the addresses other than the deletion point refer to this PGC-PG map.
  • the delete start button By pressing the delete start button, a still image of the delete start point is cut out at the upper left of the TV monitor 116 as shown in FIG. 17 (A).
  • the user presses the delete start button when the target next delete start scene comes while looking at the playback screen of the TV monitor 116 to search for the next delete portion (FIG. 17 (D)).
  • the address at this point is 2300 as shown in FIG. 18 (B)
  • the address of the start point of the front data stream ie, 2200 ahead
  • the address immediately before the address of this deletion start Address ie
  • the user presses the delete end button when the target delete end scene comes while watching the playback screen of the TV monitor 116 (FIG. 17 (D)). If the address at this point is, for example, 3499 as shown in FIG. 18 (B), the address immediately after the address of this deletion end (ie, 3500) and the address of the end point of the rear data stream (ie, 3999) ) And the video object file
  • VOB 3 (VOB 3) is stored in the file index of the memory 119 (see FIG. 18 (G)).
  • a still image at the delete end point is cut out at the upper left of the TV monitor 116 as shown in FIG. 17 (D).
  • reproduction control data such as address data at the connection point between VOB 1 and VOB 2 and the connection point between VOB 2 and VOB 3 are discontinuous.
  • VOBU-SRI data used for trick play such as fast forward and reverse fast reverse playback is edited according to the procedure shown in Fig. 19.
  • the VOBU-SRI data is, as shown in the data format of FIG. 27, the data search control information DSI included in the Navipack data NVPCK and the forward / forward / reverse playback included in the data search control information DSI.
  • Video object that contains the data search control information DSI Video object that is played back 0.5 X 11 seconds (maximum 120 seconds) before and after the playback start time of the VOBU This is a table in which the start address of a widget is described. There are 20 each in the forward and backward directions. This is shown in Fig. 19 (A). First, an example in which the data stream is deleted at one point shown in Fig. 18 (A) will be described. As shown in Figs.
  • the data stream is point A at address 1800 and point B at address 2199.
  • the VOBU-SRI data describes the start address of the video object unit that is played back up to 120 seconds before and after the playback start time of the video object unit. Therefore, as shown in Fig. 19 (D), it is necessary to rewrite the VOBU-SRI data for 120 seconds before and after the connection point.
  • the SRI data in the first half file VOB1 the SRI data in the packed word direction is continuous, so only the SRI data in the forward direction is rewritten.
  • the SRI data of the second half file VOB2 since the SRI data in the forward direction is continuous, only the SRI data in the packed direction is rewritten. This rewriting process can also be easily obtained by subtracting the length of the deleted portion, similarly to the address rewriting process described above, and the obtained data is overwritten.
  • the AV server 100 of the present embodiment inserts a data stream of another DVD video format into an arbitrary part of a multiplexed DVD video format data stream, and outputs a new DVD video format data stream. Generate a message be able to. For example, you can insert a particular scene in the middle of a movie stream, insert a commercial, or delete any part of one stream and insert it into another. The deletion editing procedure will be described below with reference to FIGS.
  • FIG. 20 is a diagram showing a TV monitor in a case where a data stream to be inserted is cut out from an insertion source data stream and inserted into an arbitrary part of an insertion destination data stream.
  • the procedure when the data stream of the insertion source and the data stream of the insertion destination are different files (different video object set) is shown in Fig. 21, and the data stream of the insertion source and the data stream of the destination are shown.
  • Figure 22 shows the procedure when are the same files (cut out and import in one video object set).
  • the AV super-computer 100 is set to the insert editing mode, and the data stream of the DV video format from which the data is inserted is reproduced on the TV monitor 116.
  • a playback screen is set at the upper right of the TV monitor 116, and a playback time axis of the stream is displayed below the playback screen.
  • the specified insertion section is played back frame by frame and displayed.
  • the user presses the insert end button when the target insert end scene comes while watching the playback screen of the TV monitor 116 (FIG. 20 (A)). If the address at this point is, for example, 179 9 9 as shown in Figure 21 (A), the address 1 2 0 0 of the previous input start and the address 1 7 9 9 of this input end Is temporarily stored in the memory 119 as a file X (VOB x) of the insertion video object.
  • VOB x file X
  • the frame advance display of the specified section is cyclically performed, and the user can display the upper left corner of the TV monitor 116.
  • the input stream can be confirmed by looking at the image displayed in.
  • the specified section is equally divided and displayed as a 100-frame still image.
  • the user plays the data stream of the DVD video format to be inserted on the TV monitor 116, and presses the insertion start button when the scene at the target insertion position comes while watching the playback screen (FIG. 20).
  • a still image at the input position is displayed on the frame advance screen on the upper left of the TV monitor 116.
  • the address at this point is 2500, for example, as shown in FIG.
  • the address of the start point of the data stream at the front of the insertion position (ie, 0) and the address immediately before the address 2500 at the insertion position (ie, 2499) are stored in the file 1 of the video object. (VOB 1), and the first address 1200 and the last address 1799 of the insertion file X, which are temporarily stored earlier, are also used as the video object file 2 (VOB 2).
  • the start address 2500 and the end address 2999 of the rear data stream are stored as a video object file 3 (VOB 3) in the file index of the memory 119 (see FIG. 21 (F)).
  • reproduction control data such as address data at a connection point between VOB 1 and VOB 2 and a connection point between VOB 2 and VOB 3 become discontinuous.
  • reproduction control data are continuously matched.
  • VTS chapter map information, cell address, and VOBU address are deleted.
  • the length can be easily obtained by adding the length, and the obtained data is overwritten.
  • the PGC-PG map shown in FIG. 21 (G) is obtained by re-indexing the map before insertion shown in FIG. 21 (E).
  • FIG. 22 is a diagram showing a processing procedure when the insertion source and the insertion destination are the same video object set, and the basic procedure is that shown in FIG. 21 described above. Is the same as
  • the AV server 100 is set to the input editing mode, and the data stream of the DVD video format, which is the insertion source and destination, is reproduced on the TV monitor 116.
  • the user presses the input end button when the desired insertion end scene comes while watching the playback screen of the TV monitor 116 (FIG. 20 (A)). If the address at this point is, for example, 1799 as shown in FIG. 22 (A), the address 1200 of the previous insertion start and the address 1799 of this insertion end are converted into the file X ( As VOB x), it is temporarily stored in memory 119.
  • the address of the start of the data stream at the front of the insertion position (ie, 0) and the address immediately before the address 2500 of this insertion position (ie, 2499) are stored in the video object file 1 (ie, 2499).
  • VOB 1 and the first address 1200 and end address 1799 of the inserted file X temporarily stored earlier are set as the video object file 2 (VOB 2), and the data at the end of the insertion position
  • the stream start address 2500 and the end address 2999 are stored as a video object file 3 (VOB 3) in the file index of the memory 119 (see FIG. 22 (F)).
  • reproduction control data such as address data at a connection point between VOB 1 and VOB 2 and a connection point between VOB 2 and VOB 3 become discontinuous.
  • these playback control data are continuously The data is rewritten so that it matches, but among these playback control data, the VTS chapter map information, cell address, and VOBU address can be easily obtained by adding the length of the deleted part. Overwrite the requested data.
  • the VOBU-SRI data used for trick play such as forward fast-forward and reverse fast reverse playback is edited according to the procedures shown in Figs. 23 (A) to 23 (D).
  • the basic processing is the same as in the case of the deletion editing described above.
  • the data stream to be inserted is cut at point A at address 1200 and point B at address 1799. This is inserted at the position of the address 2500 shown in FIG. 23 (B).
  • the VOBU-SRI data is played back up to 120 seconds before and after the playback start time of the video object tut. Since the start address of the object unit is described, it is necessary to rewrite the VOBU—SRI data in the range of 120 seconds before and after each of the two connection points as shown in Fig. 23 (C). .
  • the SRI data in the packed word direction is continuous, so only the SRI data in the forward direction is rewritten.
  • the SRI data at the beginning of the intermediate file VOB2 the SRI data in the forward direction is continuous, so only the SRI data in the backward direction is rewritten.
  • the SRI data in the forward direction is linked, only the SRI data in the forward direction is rewritten.
  • the SRI data of the second half file VOB2 the SRI data in the forward direction is continuous, so only the SRI data in the backward direction is rewritten.
  • a new DVD video format data stream from which a part desired by the user has been deleted can be generated easily and at low cost.
  • FIG. 24 is a block diagram showing a playback device for DVD-VR recorded images.
  • the data stream of the DVD-VR format is input from the front end drive 108.
  • the DVD-VR format data stream input from the front-end drive 108 is a playlist in which the playback order of chapters is recorded instead of the navigation pack included in the DVD-VI DEO format data stream. And navigation data including a time map of a video object unit for trick play. Playback control is thereby performed. Therefore, navigation data is extracted from the data stream of the DVD-VR format sent from the front-end drive 108 to the storage interface 105 to the system controller 117, which is a control microcomputer, and the DVD-VIDEO format is used here.
  • Navigation pack NVPCK and DVD Generates the navigation pack NVP CK using the map corresponding to the navigation data of the VR format.
  • the video recording stream is sent from the storage interface 105 to the MPEG2 encoder 104, and the newly generated navigation pack data NVPCK from the system controller 117 is transferred to the MPEG2 encoder 104.
  • the data stream is transmitted to 104, where these are multiplexed into a data stream in the DVD-VIDEO format.
  • Subsequent playback processing like a normal DVD-VI DEO format data stream, is decoded by an MPEG 2 decoder 110 and a graphics executor 112, and then displayed on a TV monitor 116, etc. .
  • a DVD-VR format data stream can be created by using a DVD-VI DEO playback device and adding only the processing software of the system controller 117. It can be played in real time.
  • FIG. 25 shows a data stream in DVD-VR format input from the front-end drive 108, which is played back and simultaneously converted to DVD-VI DEO format in real time.
  • FIG. 4 is a block diagram showing a reproduction / recording apparatus that records a trim on a hard disk drive 106.
  • FIG. 26 shows that the data stream of DVD-VI DEO format recorded on the hard disk drive 106 etc. is converted in real time to the data stream of DVV-VR format, and the front-end drive
  • FIG. 1 is a block diagram showing a playback / recording apparatus that records data on a DVD disk (DVD—RAM / RW / R) from 108 disks.
  • the VMG and video title set information VTS of the data format shown in Fig. 27 are converted from the DVD—VI DEO format data stream sent from the hard disk drive 106 to the storage interface 105. Extracted to the controller 117, where the DVD-VIDEO format navigation pack NVPCK and DVD-VR format navigation data are used to map the DVD-VR format navigation data. Generate the shrink pack data. Note that navigation data in the DVD-VR format can be generated by VMG, VTS and VOBU-TMAP in the DVD-VIDEO format, and the VOBU-TMAP is sent from the MPEG encoder 104 to the system controller 117. .
  • the video stream is sent from the storage interface 1 ⁇ 5 to the MPEG 2 encoder 104, where a video recording stream is generated and sent to the playback storage interface 105.
  • the data is recorded on the medium by the front-end drive 108 as a DVD-VR format data stream.
  • the DVD-VI DEO playback / recording apparatus can be used to add only the processing software of the system controller 117 to the DV-VR format data stream. It can also play, record, and invert the system in real time.

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

Abstract

L'invention concerne un appareil d'enregistrement d'informations audio/vidéo comprenant une unité de codage (11) destinée à coder un signal audio numérique et un signal vidéo numérique de manière séquentielle, une unité de multiplexage (12) servant à multiplexer au moins les données audio et vidéo codées par l'unité de codage ainsi que des données de recherche pour chaque unité prédéterminée de manière séquentielle, une unité d'enregistrement (13) permettant d'enregistrer les données multiplexées de manière séquentielle, une unité d'alimentation en données fictives (14) destinée à acheminer des données fictives sous la forme de données de recherche temporaires de manière séquentielle lorsque les données de recherche sont multiplexées par l'unité de multiplexage, ainsi qu'une unité de remplacement (15) servant à remplacer les données de recherche temporaires des données multiplexées à l'intérieur d'une unité dans laquelle les données de recherche sont définies, en dehors des données multiplexées enregistrées par l'unité d'enregistrement, avec les données de recherche définies de manière séquentielle.
PCT/JP2002/001296 2001-02-15 2002-02-15 Appareil d'enregistrement d'informations audio/video et procede d'edition WO2002065768A1 (fr)

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JP2001038447A JP3566216B2 (ja) 2001-02-15 2001-02-15 デジタル音声映像情報の記録装置
JP2001-038447 2001-02-15
JP2001233626A JP3566234B2 (ja) 2001-08-01 2001-08-01 デジタル音声映像情報の編集方法
JP2001-233626 2001-08-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7104947B2 (en) 2003-11-17 2006-09-12 Neuronetics, Inc. Determining stimulation levels for transcranial magnetic stimulation

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Publication number Priority date Publication date Assignee Title
JPH11213628A (ja) * 1998-01-21 1999-08-06 Toshiba Corp 記録媒体とその再生装置および記録再生装置
JPH11288562A (ja) * 1998-03-31 1999-10-19 Sanyo Electric Co Ltd データ処理装置
JP2000023081A (ja) * 1998-06-29 2000-01-21 Sanyo Electric Co Ltd 画像再生装置
JP2002101389A (ja) * 2000-07-14 2002-04-05 Thomson Licensing Sa サブタイトルの記録方法及び装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11213628A (ja) * 1998-01-21 1999-08-06 Toshiba Corp 記録媒体とその再生装置および記録再生装置
JPH11288562A (ja) * 1998-03-31 1999-10-19 Sanyo Electric Co Ltd データ処理装置
JP2000023081A (ja) * 1998-06-29 2000-01-21 Sanyo Electric Co Ltd 画像再生装置
JP2002101389A (ja) * 2000-07-14 2002-04-05 Thomson Licensing Sa サブタイトルの記録方法及び装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7104947B2 (en) 2003-11-17 2006-09-12 Neuronetics, Inc. Determining stimulation levels for transcranial magnetic stimulation

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