WO2004036582A1 - Avデータ記録方法、avデータ記録装置、データ記録媒体、プログラム並びにプログラム記録媒体 - Google Patents
Avデータ記録方法、avデータ記録装置、データ記録媒体、プログラム並びにプログラム記録媒体 Download PDFInfo
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- WO2004036582A1 WO2004036582A1 PCT/JP2003/013209 JP0313209W WO2004036582A1 WO 2004036582 A1 WO2004036582 A1 WO 2004036582A1 JP 0313209 W JP0313209 W JP 0313209W WO 2004036582 A1 WO2004036582 A1 WO 2004036582A1
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- 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
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/036—Insert-editing
-
- 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
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- 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]
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- 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
- G11B2220/21—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
- G11B2220/25—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
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- 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
-
- 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
-
- 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
- H04N9/806—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 with processing of the sound signal
- H04N9/8063—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 with processing of the sound signal using time division multiplex of the PCM audio and PCM video signals
Definitions
- the present invention relates to a recording method, a recording apparatus, and a recording medium for recording video data and audio data on a randomly accessible recording medium such as a hard disk, an optical disk, or a semiconductor memory.
- Video disc recorders Digital recording and playback devices for video using disc media (hereinafter referred to as video disc recorders) are becoming popular. Among them, there is a need for a technology that realizes after-recording (Afreco) functions as well as tape media at low cost.
- the AF function is a function to add information, especially audio, to the video that has already been recorded, later.
- the stream file 3 0 0 0 is a unique stream format, and original stream data (divided at predetermined playback time) Initial Recorded Video ⁇ Audio Day Insert an area for audio data to be synchronized and played back between Taking Fig. 2 0 (a) as an example, an area for remote data to store audio data to be synchronized and reproduced immediately before the partial original stream data 3 0 2 1 3 0 1 Insert 1
- Fig. 2 0 (a) an area for remote data to store audio data to be synchronized and reproduced immediately before the partial original stream data 3 0 2 1 3 0 1 Insert 1
- the relationships between 3 0 1 2 and 3 0 2 2 and 3 0 1 3 and 3 0 2 3 are similar.
- the partial original stream data and the audio recording data area to be synchronously reproduced are physically close to each other.
- the playback time of partial original stream data is set to a value that allows real-time afreco in consideration of seek time etc. (approximately several seconds), real-time afreco is guaranteed.
- MPEG-2 TS Transport Stream
- MPEG-2 PS Program Stream
- video data and audio data are set so that the reference decoder model is set and the buffer memory of the audio and video decoders in the decoder model does not underflow or overflow. It is defined to multiplex and.
- audio data of one second or longer is stored in the area for each audio data. If this stream file is played back with a general MPEG-2 TS / PS decoder, audio data of one second or more will be sent together, and the buffer memory of the audio decoder will overflow. .
- the audio function described in Japanese Patent Application Laid-Open No. 2 0 0 3 0 7 2 0 7 has the audio data area during streaming according to the aforementioned MPEG-2 PS multiplexing specification. Although multiplexing is used, there is a problem that real-time after-recording is difficult when the disk transfer rate is low.
- Japanese Patent Application Laid-Open No. 11-29885 discloses that after-recording data is recorded in a separate file, each file satisfies the MPEG-2 PS multiplexing specification.
- each file satisfies the MPEG-2 PS multiplexing specification.
- it is necessary to repeat the seek in order to alternately read the file for recording the audio data and the original stream file. Therefore, when nondestructive editing (does not move the stream data on the disc and perform visual editing with the playback path information) is performed on the result after the freque
- nondestructive editing does not move the stream data on the disc and perform visual editing with the playback path information
- the possibility of interruption of reproduction increases between scenes. It is also disadvantageous in terms of power consumption.
- the present invention has been made in view of the above problems, and is capable of reproduction on a general MPEG-2 PS / TS decoder and real-time post-recording, and reproduction in the case of non-destructive editing of the result of the after-recording.
- the purpose is to provide a data recording method with few interruptions. Disclosure of the invention
- An AV data recording method for recording together with data comprising: a first step of dividing the AV data and the related data into partial AV data and partial related data at predetermined intervals; And a second step of securing a first continuous area, which is a continuous area for recording the partial AV data and the partial related data, and the partial AV data and the partial relation in the first continuous area.
- AV data for example, original stream
- related data for example, after Is divided into partial AV data and partial related data in the first step, and is set as a recording unit that guarantees seamless playback and real-time post-recording.
- the divided partial AV data and partial related data are recorded at positions physically close to each other on the recording medium by the processing of the second and third steps, with the synchronized data as a continuation.
- the part AV data and the part related data are managed as separate files, thereby guaranteeing real-time post-recording and nondestructive editing performance.
- common MPEG- 2 playback on PS decoder is enabled t, when performed by synchronizing the reproduction of the AV data and the reproduction of the relevant data, partial AV data and the partial associated data Since the data is recorded in the vicinity, the frequency of seek is low and there is much room for synchronized reproduction with other data. For example, there is a low possibility that playback will not be interrupted even if graphics data etc.
- a fifth step of recording the reproduction start time of the partial AV data and correspondence information of position information of the first continuous area on the recording medium is provided. You may
- the method further comprises a sixth step of managing whether or not the part related data is recorded in the vicinity of the corresponding part AV data.
- Information is recorded on the recording medium.
- the partial related data in the recording may be discarded and CA be newly recorded in another area.
- Another AV data recording method of the invention is that AV data in which a plurality of stream data are multiplexed according to a predetermined multiplexing rule can be recorded on a recording medium together with related data synchronized with the AV data.
- An eighth step for securing a first continuous area which is a continuous area for recording a partial reservation data for securing a recording area of partial related data divided corresponding to the partial AV data at the time of recording; and , While creating the partial reservation data, before the first continuous region
- the ninth step of continuously recording the partial AV data and the partial reservation data the partial AV data and the partial reservation data are managed as separate files, and the partial AV data is stored. And storing the file system management information on the recording medium, the file system management information for managing the information for treating the partial reservation data as another file.
- the AV data (for example, the original stream) recorded on the above recording medium is divided into partial AV data in the seventh step, and seamless reproduction and real-time frameless video are guaranteed.
- the recording unit Set to the recording unit.
- the divided partial AV data as a continuation of the partial reservation data for securing the recording area of the partial related data synchronized with this, is mutually connected on the recording medium by the processing of the eighth and ninth steps. It is recorded at a physically close position.
- the partial AV data and the partial reservation data are managed as separate files, so that the real time file system at the time of recording the relationship data can be managed. This ensures high nondestructive editing performance and allows playback with a general MPEG-2 PS decoder.
- Step 12 of recording the reservation area of the partial reservation data, which is continuously recorded with the data, the partial related data, the partial AV data and the partial File system management information for managing information for treating the partial related data as another file while recording the file related information as a separate file from the reservation data; It can be configured.
- file system management information which is a separate file
- file system management is performed by recording information indicating the correspondence between partial AV data and partial related data arranged in the vicinity on the recording medium, on the recording medium. It is possible to easily know the part AV data and part related data that are continuously recorded continuously without referring to information, and to enable optimal data reading. Further objects, features and advantages of the present invention will be made clear by the description given below. Also, the benefits of the present invention will be apparent from the following description with reference to the accompanying drawings. Brief description of the drawings
- FIG. 1 (a) and 1 (b) show an embodiment of the present invention
- FIG. 1 (a) shows an original stream file and an allele data file according to the embodiment 1 of the present invention
- Figure 1 (b) shows the disk of the original stream file and the afreko data file. It is a figure which shows arrangement
- FIG. 2 is a block diagram showing a schematic configuration of a video disc recorder according to an embodiment of the present invention.
- Figure 3 (a) is a diagram showing the directory / file configuration
- Figure 3 (b) is a diagram showing the relationship of the management information in the UDF of the directory Z file configuration.
- FIG. 4 is a diagram showing a file directory configuration according to the first embodiment of the present invention.
- 5 (a) to 5 (c) are diagrams showing the structure of an original stream file according to Embodiment 1 of the present invention.
- FIG. 6 is an explanatory drawing showing the structure of an audio dubbing data file according to the first embodiment of the present invention.
- FIG. 7 is a diagram showing a reference 'device model' according to the first embodiment of the present invention.
- FIG. 8 is a diagram showing the reference-afrequencing algorithm according to the first embodiment of the present invention.
- FIG. 9 is a diagram showing the structure of a stream management information file according to Embodiment 1 of the present invention.
- Fig. 10 (a) to Fig. 10 (b) are diagrams showing a configuration of video_unit_table in the first embodiment of the present invention.
- 1 1 (a) to 1 1 (b) are diagrams showing the configuration of VU—flags in the first embodiment of the present invention.
- FIG 1 2 (a) ⁇ FIG 1 2 (b) is a diagram showing the configuration of a continuous area- tab I e in the first embodiment of the present invention
- Fig.13 (a)-Fig.13 (b) is a figure which shows the structure of CA-f lags in Embodiment 1 of this invention.
- FIG. 14 is a diagram showing the structure of a program information file in the first embodiment of the present invention.
- Fig. 15 (a) to Fig. 15 (b) are diagrams showing the configuration of a scene table according to the first embodiment of the present invention.
- FIG. 16 is a flow chart showing the flow of the recording process in the first embodiment of the present invention.
- FIG. 17 is a flowchart showing the flow of the regeneration process in the first embodiment of the present invention.
- FIG. 18 is a flowchart showing a flow of scene reproduction processing in the first embodiment of the present invention.
- FIGS. 1 9 (a) and 1 9 (b) show another embodiment of the present invention
- FIG. 1 9 (a) shows the data configuration of two types of stream files according to the second embodiment
- Figure 19 (b) shows the arrangement of these stream files on the disk.
- Fig. 20 (a) and Fig. 20 (b) show the prior art.
- Fig. 20 (a) shows the data structure of the stream file
- Fig. 20 (b) shows this stream file Is a diagram showing the arrangement of the disc on the disc.
- FIG. 21 is a diagram showing the configuration of a file Z directory in the third embodiment of the present invention.
- Figures 2 2 (a) and 2 2 (b) show an embodiment of the present invention
- Figure 2 2 (a) shows an original stream file according to Embodiment 3 of the present invention.
- Data configuration of file and space area reservation file Fig. 2 2 () Is a diagram showing the arrangement of the original stream file and audio recording area immediately after recording on the disk of the reserved file.
- Figure 2 3 (a) shows the data structure of the graphics file and file data file according to the third embodiment of the present invention
- Figure 2 3 (b) shows the file of the file after the non-destructive editing. It is a figure which shows the arrangement
- FIG. 24 is a diagram showing the structure of a program information file in the third embodiment of the present invention.
- FIGS. 25 (a) to 25 (b) are diagrams showing the configuration of a subaudio table according to the third embodiment of the present invention.
- FIGS. 2 6 (a) to 2 6 (b) are diagrams showing the configuration of graph I cs-tab I e according to the third embodiment of the present invention.
- 27 (a) to 27 (b) are diagrams showing configurations of SA flags and gr flags according to the third embodiment of the present invention.
- FIG. 28 is a flow chart showing the flow of scene reproduction processing in the third embodiment of the present invention.
- FIGS. 2 9 (a) and 2 9 (b) show an embodiment of the present invention
- FIG. 2 9 (a) shows an original stream file according to the fourth embodiment of the present invention
- Fig.29 (b) shows the arrangement of the original stream file and the file on the disk.
- FIGS. 3 0 (a) and 3 0 (b) are diagrams showing a reference ⁇ dubbing ⁇ algorithm according to the fourth embodiment of the present invention.
- FIG. 2 is a basic system block diagram of a video disc recorder common to the respective embodiments described later.
- This video disk recorder has a bus 100, a host CPU 1 0 1, a RAM 1 0 2 N R 0 M 1 0 3, a user interface 1 0 4 and a system clock 1 0 5, optical disc 1 0 6, pickup 1 0 7, ECC (Error Correcting Coding) decoder 1 0 8, ECC encoder 1 0 9, audio reproduction buffer 1 1 0, video reproduction buffer 1 1 1, demultiplexer 1 1 2, Multiplexer 1 1 3, Recording buffer 1 1 4, Audio decoder 1 1 5, Video decoder 1 1 6 Audio encoder 1 1 7, Video encoder 1 1 8, Audio recording buffer 1 1 9, Video recording Buffer 120, Demultiplexer 12 21, Buffer for Replay of Data 1 2 2, Division Processing Unit 1 2 3 (Means for Dividing AV Data and Partially Related Data), Free Space Management Unit 1 2 5
- Management information processing unit 126 Camera, microphone, speaker, display, etc. not shown. Also, the pickup 1 0 7, the decoder 7 0 8 and the ECC encoder 1 0 9 continuously record the drive 1 2 7 (partial AV data and partial related data Means for recording file system management information on the recording medium.
- the host CPU 1 0 1 has a demultiplexer 1 1 2, a multiplexer 1 1 3, a pickup 1 0 7, an audio decoder 1 1 5, a video decoder 1 1 6, an audio encoder 1 1 7 and a video encoder 1 1 8. Control is performed through pass 100.
- data read out from the optical disc 1 06 through the pickup 1 0 7 is error-corrected by the ECC decoder 1 0 8.
- the error-corrected data is subjected to file system management information by the management information processing unit 126 and sent to the demultiplexer 112 or the demultiplexer 121.
- the demultiplexer 1 1 2 2 follows the instruction from the host CPU 1 0 1 and depending on whether the data read out is audio data or video data, an audio reproduction buffer 1 1 0 and a video reproduction buffer 1 1 Allocate to 1. Similarly, the demultiplexer 1 2 1 sends the read data to the audio data reproduction buffer 1 2 2 in accordance with the instruction from the host C PU 1 0 1.
- the audio decoder 1 1 5 reads out data from the audio reproduction buffer 1 1 0 and the audio frame data reproduction buffer 1 2 2 in accordance with the instruction from the host CPU 1 0 1 and decodes the read data I do.
- the video decoder 1 16 reads data from the video reproduction buffer 1 1 1 according to the instruction of host C PU 1 1, etc., and decodes the read data.
- the audio encoder 1 1 7 and the video encoder 1 The data compressed and encoded by the header 118 are sent to the audio recording buffer 119 and the video recording buffer 120 respectively.
- the multiplexer 1 13 reads the data from the audio recording buffer 1 1 9 and the video recording buffer 1 2 0 according to the instruction from the host CPU 1 0 1 and divides the read data into AV multiplexed and split processing.
- Send to department 1 2 3 The division processing unit 1 2 3 divides the AV multiplexed data at predetermined intervals and sends the divided data to the recording buffer 1 1 4.
- the free space management section 125 secures a continuous area for recording data, and the ECC encoder 1 0 9 corrects the error correction code for the AV multiplexed data read from the recording buffer 1 1 4 And record on the secured continuous area of the optical disc 106 through the pickup 107.
- the MPEG-1 Layer-II specified by IS0 / IEC 13818-3 is used as the audio data coding method
- the MPEG-2 specified by IS0 / IEC 13818-2 is used as the video data coding method.
- An optical disc 106 is a rewritable optical disc such as a DVD-RAM, and an ECC block is formed of 16 sectors for error correction with 2 0 4 8 b y t e as one sector.
- AVD P Anchor Volume Descriptor Pointer 600 corresponds to the entry point for searching the management information of the UDF, and usually 2 5 6 Record at Kth order, Nth sector or N ⁇ 2 5 6th sector (N is the maximum logical sector number).
- a VDS (Volume Descriptor Sequence) 601 records management information on a volume, which is an area managed by the UDF. Generally, one volume exists on one disk, and generally one partition is contained in it. There is one FSD (File Set Descriptor) 6 0 3 in the notation. Position information in the partition is indicated by a logical block number corresponding to the sector number from the beginning of the partition. One logical block corresponds to one sector. Also, each partition has a table (not shown) indicating whether or not each logical block called Space Bitmap has already been assigned to the file.
- F S D 6 0 3 3 contains location information of F E 4 0 4 which is the root File Entry (F E) of the root directory (composed of the logical block number and the number of logical blocks and called "extent").
- the FE manages a set of extents, and can rewrite, add, or delete extents to change the order of actual data making up a file, or insert or delete data. It is possible.
- the FE 604 manages an area 605 for storing a set of File Identifier Descriptors (FIDs) that store the names of files and directories directly under the root directory.
- FID 6 1 1 and FID 6 1 2 in area 6 0 5 are the file 6 2 1 and file 6 2 2 2 that manage the file name of the file and extent of FE 6 0 6 and FE 6 0 8 respectively.
- the FE 6 0 6 6 manages the area 6 0 7 and the area 6 1 0 which are areas constituting the actual data of the file 6 2 1 as an extent.
- Fainole 6 2 1 In order to access real data, AVD P 602, VDS 601, FSD 603, FE 604, FID 61, FE 606, area 6 0, area 6 1 0 You can send the links in the order of.
- the file and directory configuration according to the first embodiment will be described with reference to FIG.
- the data concerning the first embodiment is stored in five types of files as shown in FIG.
- the original stream file (SHRP0001. M2P) is a file created by one recording and is in the MPEG-2 PS (Program Stream) format.
- the audio dubbing data file (SHRP0001. PRE) is a file for securing an area for AV data and storing audio dubbing data.
- the original stream management information file (SHRP0001.0MI) is a time-series address information and attribute information on the original stream file, and attribute information on the affleco data file. It is a file that stores the correspondence relationship information with it, and there is one for each original stream file.
- the program information file (SHRP0001. PGM) is a file that stores information that specifies which section of the stream and data described above is to be reproduced in what order. The program corresponds to one content, and is the target for which the user instructs playback.
- an original stream management information file for managing data to be reproduced regarding a section to be reproduced is a file name of an original stream management information file. Record the sections you want to play in order. The data structure of each file will be described later.
- the original stream file will be described using Fig. 5.
- the content of the original stream file is MPEG-2 PS format, and it consists of an integer number of Continuous Units (CU) as shown in Fig. 5 (a). Be done.
- CU is a unit for continuously recording on the disc.
- the length of the CU is seamless playback (it is possible to play without interruption of image and sound during playback) and real-time after-recording (subject to AF frame regardless of how the CUs that compose the AV stream are placed on the disk.
- the video is set to guarantee seamless playback while recording video. This setting method will be described later.
- a CU consists of an integer number of Video Units (VUs) as shown in Figure 5 (b).
- VU is a unit that can be played independently, and it is an entry point during playback.
- Can be The VU consists of an integral number of audio packs (A # 1 to A # K) and video packs (V # 1 to V # L), as shown in Figure 5 (c), and each of them is in MPEG-2 PS format.
- AV multiplexing is performed so that the decoder model does not collapse.
- the pack size should match the sector size to avoid reading extra data when reading the disc.
- the video data to be linked is made up of one or two GOPs, and the audio data is made to pack an integral number of AAUs (Audio Access Units).
- G OP is a unit of image compression in the MPEG-2 video standard, and is composed of a plurality of video frames (typically about 15 frames).
- AAU is a unit of audio compression in the MPEG-1 Layer-II standard, and is composed of 1 1 5 2 sound-shaped sample points. When the sampling frequency is 4 8 kHz, the reproduction time per A AU is 0. 0 2 4 seconds. Also, in order to enable independent playback on a VU basis, put a Sequence Header (SH) at the beginning of the video data in the VU.
- SH Sequence Header
- the CU at the end of the CU is padded with a pack containing padding packets so that the CU consists of an integer number of ECC blocks.
- the configuration of an Affleco data file will be described using FIG.
- the file data file is an integer number of Continuous Area as shown in Figure 6.
- CA CA
- One CU in the above-mentioned original stream file exists corresponding to one CA, and CA records the feedback data on the reproduction data in the corresponding CU. For example, if you want to play in sync with CU # n in the original stream file Data is recorded in CA # n.
- the CA consists of an integer number of ECC blocks.
- Afreco data files like the original stream files, are in the MPEG-2 PS format, and padding packets are recorded at the time of initial recording, and after afreco, a pack containing afreco data is overwritten. This is a knock nook to overwrite.
- SCR System Clock Reference
- PTS Present Time Time Stamp
- SHRP0001.M2P and the Afreco data file (SHRP0001.PRE) are recorded on the optical disc 106 so that the corresponding CA is placed immediately before CU (Fig. 1 (b)).
- Reference 'device model' will be explained using Fig.7.
- Reference 'device' model has 1 pickup (not shown) and ECC encoder 'decoder 5 0 1, track buffer 5 0 2, demultiplexer 5 0 3, buffer for AF frame 5 0 4. It is composed of a video encoder 5 0 9, a video buffer 5 0 5, an audio buffer 5 0 6, a video decoder 5 0 7 and an audio decoder 5 0 8.
- the audio encoder 5 0 9 outputs the data for an aleko to the buffer for an aleco 5 0 4 in an AAU cycle. This output overwrites the corresponding CA pro- gram in the AF file buffer 504. Recording of data for Africa is done by recording CA block in a predetermined ECC block. 5 o
- the input speed of data to the ECC encoder of audio frame data 5 0 1 and the output speed of data from the ECC decoder 5 0 1 are R s.
- T a be the maximum period during which reading by access and recording stop. Note that this period includes the seek time, the rotation waiting time, and the time until the data read from the disk first after access is output from the ECC decoder 501.
- Tr (i) Te (i) x Ro / Rs + Te (i) x Ra / Rs + Ta (3)
- the first term and the second term on the right side of the above equation (3) represent the VU readout time in C U and the CA readout time, respectively.
- the third term on the right side represents the access time due to the split jump associated with reading. Since the split jump during reading of the CU is at most one time, the above equation (3), that is, T r (i) indicates one access time.
- T w (i) satisfies the following equation (4).
- Tw (i) 2Ta + Te (i) x Ra / Rs (4)
- the first term on the right side of the above equation (4) indicates the round-trip access time to the CA.
- the maximum access time T a is used for the round-trip access time to the CA because recording is possible at an arbitrary position in CA units, so the CU currently being read is the innermost circumference of the disc and is the recording target. It is conceivable that the CA is the outermost circumference of the disk, and it is necessary to estimate the maximum value.
- the lower limit value for the Au freco guaranteed CU playback time Temin is represented by the following equation (6).
- Temin (3Tax Rs) / (Rs-Ro-2Ra) ⁇ ⁇ ⁇ (6)
- the upper limit value T e ma x of the CU reproduction time is set as the following equation (7).
- T v m a x is the maximum playback time of VU.
- Temax (3Tax Rs) / (Rs_Ro-2Ra) + Tvmax ⁇ ⁇ ⁇ (7)
- the upper limit value of CU playback time is set to estimate the maximum amount of delay memory required for synchronized playback of audio for afreco and normal audio, and to guarantee playback compatibility.
- the multiplexing interval lower limit value T is set according to the audio bit rate R a and the video bit rate RV. Although emin is set, a constant lower limit may be set regardless of the bit rate. However, the value must be based on the largest bit rate.
- VU playback time in the stream may be fixed or variable as long as the CU playback time satisfies the above-mentioned limit.
- the split jump and the movement of the pick-up to the past CU are performed asynchronously.
- the reason for this is that the conditions for performing real-time post-recording are stricter than those performed asynchronously (compared to the case where reading of reproduction data is interrupted for a long time). It is possible even if synchronization is possible if real-time after-recording is possible, and it is possible to increase the freedom of implementation.
- the management information file format according to the present invention will be described with reference to FIG. 9 to FIG.
- the original stream management information file stores attribute information on the entire original stream file managed by this file o-attribute (), and stores information on the VU video — Unit— table (), p— attribute () that stores attribute information on the entire Afleko data file managed by this file, and continuous area table () that encloses information on CA.
- video-unit-one tableO is composed of a number-of-video-unit indicating the number of VUs and video-unit-info () that stores information on each VU. Ru.
- video— unit— info stores VU flags that indicate various attribute information related to a given VU, and stores PTS (Presentation Time Stamp) of the top display frame of a given VU.
- VU Consists of PTS and VU—PN that store relative pack numbers from the beginning of the file.
- VU seekingPTS and VU The PN makes it possible to locate the VU corresponding to a specific PTS, that is, VU—PTS indicates the playback start time of the original stream (AV data), and VU— PN Indicates the position information of the first continuous area that records the CA and CU, in other words, the head position information of the CA.
- VU— flags () contains the flag first— unit— flag as shown in Figure 1 1 (a).
- first— unit 1 flag is 1 bit information, and as shown in Fig. 1 1 (b), in case of 0 b, it means that the VU to be managed is not the head of CU, and in the case of lb it is managed It means that VU is at the beginning of CU.
- continuous i area-table () indicates the number of CAs number-of-continuous i area and continuous l area-inf the case line relating to each CA It consists of o ().
- continuous-area-info shows CA-flags that indicate various attribute information related to a given CA, and PTS of the display frame of the head display frame of the corresponding CU for the given CA. Stores the Time Stamp), and the relative pack number from the beginning of the file.
- CA CA Consists of PN.
- the CA—PTS and CA—PN make it possible to locate the CA corresponding to a specific PTS in the original stream.
- This flag contains one flag.
- placement_flag is 1-bit information, and as shown in Figure 13 (b), in the case of 0 b, it means that the CA to be managed is not in front of the corresponding (synchronized) CU, and lb In this case, it means that the managing CA is in front of the corresponding (synchronized) CU.
- this flag it is possible to know the possibility that playback will break when playing back nondestructive editing results. That is, if this flag is O b, it is understood that a seek to CA occurs and there is a high possibility that the reproduction is interrupted.
- the program information file is composed of pg-attribute () for storing attribute information of program information in general, and a scene-one table O for storing information on each scene that composes the program. .
- the scene-table O is composed of number one of scene which stores the number of scenes and scene one info () which is a case in which the blue sky of each scene is stored.
- scene— info () stores the file name of the original stream management information file that manages the original stream file including the specified scene.
- sc filename, specified Provides information on where to play your scene from where in the original stream
- the process when a user instructs to record will be described along the flowchart in FIG.
- file system management information has already been read into RAM.
- the stream composition and the composition of the continuous area are determined (S701).
- the area size of CA at this time is determined in consideration of that pack header and packet header are attached to audio data for 3 seconds.
- the above-described processing of S7001 is the partial AV data (CU: six VUs at predetermined intervals) of the original stream that is AV data and the related data that is AV data. This corresponds to the first step of dividing into) and partially related data (CA).
- the space status of the ECC block on the disk to be recorded next is checked by referring to the Space Bitmap on the RAM (S705). If there is space, data for one ECC block in the recording buffer 1 1 1 is recorded on the disk (S706). If there are no vacancies, look for consecutive VU and CA recordable free space (S 7 0 7), move the pickup to the beginning of the free space (S 7 0 8), and record Data for one ECC block in buffer 1 1 1 is recorded on the disk (S 7 0 6).
- the process of S704 corresponds to the second step of securing a first continuous area which is a continuous area for recording a series of partial AV data and partial association data.
- the process of S 806 corresponds to a third step of continuously recording the partial AV data and the partial related data in a first continuous area.
- the following processing is executed. First, regarding the data less than 32 KB in the recording buffer Add dummy data to the end to make 3 2 KB (S 7 1 0). Next, the data is recorded on the disc (S71 1 to S714). Note that the above-mentioned processing of 7 11 to S 7 14 is the same processing as the processing of S 7 0 5 to S 7 0 8. Furthermore, management information and information on the original stream on RAM 102 The management information on the frame data is recorded in the original stream management information file and the afreko data management information file, respectively (S 7 15). Also, file system management information is recorded on the optical disc 106 (S 7 16). The file system management information at that time is configured so that CA and CU are treated as separate files.
- the process of S 7 16 manages the partial AV data and the partial related data as separate files, and at the same time, the partial AV data and the partial related data and the first part It corresponds to a fourth step of recording file system management information for managing information for treating the continuous area as another file on the recording medium.
- the process of S 715 corresponds to a fifth step of recording the reproduction start time of the partial AV data and the correspondence information of the position information of the first continuous area on the recording medium.
- the operation of the audio encoder 1 17, the video encoder 1 18 and the multiplexer 1 13 in parallel with the above processing will be described.
- the results encoded by the respective encoders are sent to the audio recording buffer 119 and the video recording buffer 120.
- the multiplexer 1 1 3 multiplexes those data into the MPEG-2 PS and stores them in the recording buffer 1 1 4.
- VU Data for 1 VU is sent to the recording buffer 1 1 4 and If VU is 9 X i-th (i is an integer of 0 or more), CA having the above size is sent to recording buffer 1 1 1 first.
- VU number is incremented (S 8 0 7), and by referring to the first one unit- flag in the video one unit one info (), the video is displayed.
- Unit It is judged whether the VU managed by infoO is the beginning of CU (S880).
- the video U unit one info () determines that the VU managed by the CU is the beginning of the CU, and the corresponding CA address is determined by the above-mentioned procedure.
- Ask (S 8 0 9) read CA from post-recording data file (S 8 10).
- first unit flag is 0 If there is, it is determined that the VU managed by the video__unit—info () is not the beginning of the CU, and the processing of S 8 0 4 to S 8 0 8 is repeated.
- the decoding process is performed as follows.
- the VU read out first is sent to the demultiplexer 1 1 2 and the video PES packet and audio PES bucket are taken out, and the video PES packet is sent to the video reproduction buffer 1 1 1 and the audio PES The packet is sent to audio playback buffer 1 1 0.
- Demultiplexer 1 1 2 extracts S C R from the pack header and updates system clock 1 0 5.
- the video decoder 1 16 and the audio decoder 1 1 5 perform decoding and output when the system clock 1 0 5 coincides with the time stamp attached to the PES note.
- the CU that stores the original stream and the CA that stores the afreco data that performs synchronized playback are physically close on the disk, so the VU near the end of the CU is the scene start. Even if it is from the side, the stop time of the data read caused by the seek from CA to VU can be small.
- the seek time that occurs between the reading of post-record data at the beginning of the scene and the reading of the original stream is the worst. From the innermost circumference to the outermost circumference of the disc. Therefore, the possibility of interruption of reproduction between scenes is higher than that of the present embodiment.
- the audio and video encoder 1 1 7 is started at the same time as scene playback starts, and the result of encoding the audio data is in the form of a PES packet in audio recording buffer 1 1 9
- the sending multiplexer 1 1 3 packs the PES socket and sends it to the recording buffer 1 1 4.
- SCR of the knock header and PTS of the packet header are adjusted to the original stream.
- the pack sequence existing in the recording buffer 114 is recorded in the audio data file.
- the position of the recording target C A is found by referring to the continuous – area — table ⁇ of the C PT s that is currently being decoded.
- the audio stream data file is recorded in the MPEG-2 PS format in the same way as the original stream file, but the elementary stream, that is, the packet stream is recorded without packetizing. It is also conceivable. This eliminates the need for extracting A A U from the pack, replacing A A U and repacking it, when rewriting post-recording data of only a part of C A.
- audio data is recorded in CA, but other types of data may be recorded.
- graphics data to be displayed superimposed on video in the original stream may be recorded.
- one A A U can be recorded so as to be spread over a plurality of packs, it may be limited so as not to overlap.
- it is only necessary to overwrite the pack that contains the A AU that you want to rewrite.
- the CA when a deflection is detected in a CA at the time of after-recording, the CA is discarded and recorded in another area.
- the size of the CA is determined taking into account the margin for the diffuse at the time of initial recording, and the difference is detected at the time of the afreco, the next position in that CA It may be recorded in By this, CA and CU can be recorded continuously.
- in order to associate the CA and the CU, which are separate files it is possible to calculate the first address of the CU and the CA from the time stamp of the first data in the CU. It goes without saying that any form of expression may be used as long as the correspondence is known.
- MPEG-2 PS is used in the first embodiment, it is needless to say that the present invention can be similarly realized by the MPEG-2 TS.
- FIG. 1 A second embodiment of the present invention will be described using FIG. 1
- First Embodiment A plurality of data to be subjected to synchronous reproduction is continuously arranged on a recording medium, and each data is managed as a separate file.
- the second embodiment is based on the premise that each piece of data is on the same reproduction time axis but is switched and reproduced without being reproduced at the same time. Specifically, it assumes a function called multi-angle function in DVD-Video, which can switch images during playback from multiple angles on the same time axis.
- the relationship between the original stream and the audio data to be synchronously reproduced in the recording operation according to the above-mentioned embodiment 1 is two types on the same reproduction time axis. It is merely replaced with the original stream relationship of, and the actual operation is the same.
- the data from the first angle, ANGL 0001. M2P is divided into partial data 2 0 2 1, 2 0 2 2, 2 0 2 3 and the second
- the data from the angle, ANGL0002.M2P is divided into partial data 2 0 1 1, 2 0 1 2 and 2 0 1 3 and arranged alternately on the disc 2 0 0 1.
- the method of determining the division unit is the same as the arrangement of multi-angle data in DVD-Video, so the description is omitted.
- FIGS. 21 to 28 A third embodiment of the present invention will be described with reference to FIGS. 21 to 28.
- the difference between the third embodiment and the first embodiment is that in the first embodiment, the area for the afreco is managed by one file (that is, the acrecoder file (SHRP0001. PRE in FIG. 4).
- the file for securing the free space and the file for recording the individual AV data are separated.
- the third embodiment is similar to the first embodiment, so only the differences will be described.
- the file 'directory structure in the third embodiment is shown in FIG. W 200
- the AF area reservation file (SHRP 0001. RSV) is a file for reserving the area for AF.
- the fax data management information file (SHRP0001. PMI) is the management information corresponding to the fax data file (the graphics file (SHRP0001. PNG) is a file that stores graphics data to be displayed superimposed on the video.
- the program information file (SHRP0001. PGM), the original stream management information file (SHRP0001. 0MI), the intelligent nano file frame (SHRP0001. M2P) f. It is the same as the file of the same name in Form 1.
- a file area reservation file is recorded for each original stream file at the time of recording.
- One Afreko data management information file is created for each file data file.
- a graphics file is a file that is added by nondestructive editing after recording, and stores an image of a title or handwriting that is superimposed on video.
- Use PNG Portable Network Graph ic
- the AF data file (SHRP 0001. PRE), unlike the first embodiment, is generated only by performing an AF. That is, at the time of recording, an audio recording region reservation file is recorded instead of the audio data file in the first embodiment.
- AV stream format> The form of the AV stream is the same as the configuration of the embodiment 1 described with reference to FIG.
- the AF recoding area reservation file has the same configuration as the AF reko data file shown in FIG. 6 in the first embodiment. That is, the Afreko area reserved file consists of an integral number of Continuous Areas (CAs), and one CA exists corresponding to one CU in the original stream file, and records post-recording data of the corresponding CU. Secure the area of However, since the CA here is for securing the area to the last, it is not the AV data to be reproduced, so the data of the contents may be anything t ⁇ disposition to disk>
- CAs Continuous Areas
- Figures 2 2 (a) to 2 2 (b) show the file arrangement after recording, with no afreco done (ie, no post-record data file created).
- the corresponding original stream file (SHRP0001.M2P) and the area-reserved file (SHRP0001.RSV) corresponding to each other shown in FIG. 2 2 (a) are the CA corresponding to the CU immediately before the optical disk 106. Record as deployed (Fig. 2 2 (b)).
- FIG. 2 3 (a) shows the configuration of the additionally recorded graphics file (SHRP0001. PNG) and the post-recording data file (SHRP0001. PRE).
- Graphics file stores graphics data IMG ing.
- the afreko data file is awreco audio data PR # 1 corresponding to each of CU # n — l, CU # n, and CU # n + l in the original stream file shown in FIG. 2 2 (a).
- the above IMG and PR data are arranged on the optical disc 106 in the form shown in FIG. 2 3 (b). That is, in Fig. 2 2 (b), the area reserved by CA # n — 1 was reserved by PR # 1 and the area reserved by CA # n by PR # 2 and CA # n + l. PR # 3 is placed in the area. In addition, graphic data I MG is placed in the area reserved by CA # n + l.
- an after-recording area reservation file which is a file for managing free space in the after-recording area, it becomes easy to add multiple types of data later.
- storing graphic data and audio data in separate files allows you to refer to graphic data only from another program. This increases flexibility.
- the format of the original stream management information file is the embodiment. It is the same as 1 and the explanation is omitted here.
- the format of the Afreko data management information file is almost the same as the original stream management information file in Embodiment 1, but P- attribute () and continuous-area-area-table () There are different 0 in mosquito existing ⁇ ⁇
- Figure 24 shows the structure of the program information file. This embodiment
- the program information file according to the third embodiment is the embodiment 1 in that subaudio_table () and graphics-table () for managing audio data and graphics data added after recording are added (see FIG. 14). It is different from).
- subaudio-table is a number-of-subaudio representing the number of audio data, and subaudio-info () that contains information about each audio data. It consists of As shown in Fig. 25 (b), subaudio-info () stores the file name of the AV data management information file that manages predetermined audio data, and SA-filename, and various types of predetermined audio data.
- the attributes are managed by the SA-flags, and it is composed of SA-start-time and SA-duration, which indicate the playback start timing and playback duration in the program, respectively.
- the graphics-- table O is composed of a number-- of- graphics representing the number of graphics files and a graphics- info () that stores information about each graphics file.
- C graphics – info () is shown in Figure 26 (b), and it contains a gr-filename that stores the name of a given graphics file, and gr-that manages various attributes of a given graphics data. flags and gr start time to indicate the playback start timing and playback duration in the program, respectively gr—consists of duration and
- the SA-flags and the gr-flags have the same configuration and include the flag interleave-flag as shown in Figure 2 7 (a).
- the interleave flag is lbit information, and as shown in Fig. 2 7 (b), in the case of O b, it is assumed that the managed data or graphics file is not in front of the corresponding (synchronized playback) CU. In the case of lb, it means that it is immediately before the corresponding (synchronized) CU.
- this flag it is possible to know the possibility that playback will be interrupted when playing back nondestructive editing results. That is, if this flag is 0b, it is understood that a seek to CA occurs and there is a high possibility that the reproduction is interrupted.
- the method of determining the CU unit is the same as the method of Embodiment 1 described with reference to FIGS. 7 and 8.
- the process at the time of recording is the same as the process of the first embodiment described with reference to FIG.
- V U the order of video-unit-info () in video-unit-table () is called V U number.
- the VU_PN of video— unit— info () corresponding to the current VU number is referenced to obtain the VU address (S804), and based on that, the VU is read from the original stream file (S8 0 5).
- VU number is incremented (S 8 0 7), and video— unit— info () refers to the first one unit one flag.
- video— unit— info refers to the first one unit one flag.
- S 1 it is determined that the VU managed by that video-one unit-info () is the beginning of the CU (S 8 0 8), and the graphics file is to be synchronized and reproduced.
- the existence of audio data is confirmed by the above-mentioned procedure (S 80 9 '), and if it exists, it is read by the above-mentioned procedure. Take out (S 8 1 0 ').
- the audio encoder 1 1 7 is activated, and the encoded result is sent to the audio recording buffer 1 1 9 in the form of PES bucket.
- Multiplexer 1 1 3 packs the PES packet and sends it to recording buffer 1 1 4.
- the SCR of the knock header and the PTS of the bucket header are adjusted to the original stream.
- the pack string existing in the recording buffer 114 is recorded in the AV data file.
- the position of the CA to be recorded is obtained by referring to the continuance-area-tabl e () of the PTS force of the CU currently being decoded.
- the process when the user instructs to add graphics data to be superimposed on video is described.
- the CA corresponding to the CU including the video frame that starts the superimposed display of graphic data by examining the continu- ous area and i nfo O in the management information file related to the stream to which the graphic data is added.
- graphics data can not be recorded in the statement C A.
- the graphics data is recorded in another area.
- gr_f lags () D interleave 1 flag in that entry to 0.
- graphics files and rate data files are additionally recorded after recording, but it goes without saying that they may be recorded at the time of recording. Even in this case, graphics files and audio files can be treated as files independent of video files, and video files are general MPEG-2 PS files, and seek is not necessary for synchronized playback. .
- the fourth embodiment of the present invention will be described with reference to FIGS.
- the positioning of the fourth embodiment is a variation of the arrangement on the disk and the method of determining the CU unit in the first embodiment. Therefore, since the other parts are the same, we will focus on the differences.
- Embodiment 1 is the same as Embodiment 1 except for the following points.
- the point different from the first embodiment is that in the present embodiment, the CU may not be continuously recorded.
- the arrangement of the original stream file and audio data file on the disk will be explained using Fig.29.
- the original stream files (SHRP0001. M2P) and the index data file (SHRP0001. PRE) corresponding to each other shown in FIG. 2 9 (a) are basically the optical disks as in the first embodiment.
- the corresponding CA is recorded so as to be placed immediately before the CU, unlike the first embodiment, it is possible to divide in the middle of the CU.
- CU # n — 1 and CU # n in Figure 2 9 (b) are examples.
- the division within one CA is not permitted.
- the total VU playback time included in one continuous area must be equal to or greater than the CU playback time.
- a method of determining the CU reproduction time will be described with reference to FIG.
- the reference decode reference ⁇ device ⁇ model
- the reference profile reference ⁇ afreko ⁇ ⁇ ⁇ ⁇ Algorithm
- the reference Affleco algorithm is represented by the following (a) and (b).
- (A) In principle, recording of C A is performed when reading of the current C U ends.
- (B) However, if the end of the next CU of the CU currently being read is included in another continuous area, the CA record will end reading the next CU of the CU currently being read. I will postpone until some time.
- Figure 30 (a) is an example of (a) above.
- the numbers (1) to (8) in FIG. 30 correspond to the numbers (1) to (8) in the following description.
- Figure 3 0 (b) is an example of (b) above.
- T w (i) in the equation (1) is the same as the equation (4) in the first embodiment, but T r (i) is the equation (3) in the first embodiment as in the equation (8) It is a form excluding Ta from that is, a form which does not include a jump.
- Tr (i) Te (i) x Ro / Rs + Te (i) x Ra / Rs ⁇ ⁇ ⁇ (8)
- the reasons for not including jumps are as follows. This is because, in the fourth embodiment, a jump during reading of the CU is treated as a jump during recording of the CA because the recording is performed during the jump during reading of the CU. This makes it possible to reduce the final unit of C U and the unit of continuous area.
- the post-recording guaranteeable CU playback time lower limit value T emin is represented by the following equation (10). ⁇ . 2TaxRs / ,
- the upper limit value TemAx of the CU playback time is set as the following equation (11).
- T V ma X is the maximum playback time of V U.
- the multiplexing interval lower limit T emi 11 is set according to the audio bit rate R a and the video bit rate RV, a constant lower limit is set regardless of the bit rate. It is good. However, the value must be based on the largest bit rate.
- the VU playback time in the stream may be fixed or variable.
- the capacity of the track buffer 502 necessary for after-recording may be calculated based on the following concept. First, assuming the case where the largest capacity is required in the fourth embodiment, there is a case in which the recording of data on CA continues to occur. Specifically, this is the case where the division is made immediately before the end of CU. In other words, C U is divided into two continuous areas and recorded, and most of the data is present in the preceding continuous area.
- Embodiment 1 is the same as the embodiment 1 except for the limitation of continuously recording the CU on the disc.
- Embodiment 1 is the same as that of Embodiment 1 except that the algorithm shown in FIG. 30 is used when performing post-recording.
- Japanese Patent Application Laid-Open No. 2000019 referred to as the prior art in the case of using an audio recording region reservation file as in the third embodiment. Needless to say, it can be applied to the case where the same file is used as in the case of 4 3 16 16. That is, the essence of the invention disclosed in the present embodiment is in the model setting for setting the physical arrangement of the after-recording area and the initially recorded video data and parameters related to the arrangement.
- the present invention can be applied to a digital recording and reproducing apparatus (video disc recorder) of a video having an AV function and using a disc medium such as a DVD or a hard disc as a recording medium.
- a digital recording and reproducing apparatus video disc recorder
- a disc medium such as a DVD or a hard disc
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Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
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US10/531,534 US7817897B2 (en) | 2002-10-17 | 2003-10-15 | Method for recording AV data, AV data recording apparatus, data recording medium, program and program recording medium |
EP03754145A EP1555672A4 (en) | 2002-10-17 | 2003-10-15 | METHOD AND DEVICE FOR RECORDING AUDIOVISUAL DATA, DATA RECORDING MEDIA, PROGRAM AND PROGRAMMING MEDIUM |
AU2003273020A AU2003273020A1 (en) | 2002-10-17 | 2003-10-15 | Av data recording method, av data recording device, data recording medium, program, and program recording medium |
US12/732,463 US20110075998A1 (en) | 2002-10-17 | 2010-03-26 | AV Data reproducing device, method for reproducing AV data, and recording medium for the same |
US12/732,644 US20110075986A1 (en) | 2002-10-17 | 2010-03-26 | Av data reproducing device, method for reproducing av data, and recording medium for the same |
US12/732,663 US20110075987A1 (en) | 2002-10-17 | 2010-03-26 | Device and method for recording av data and associated data, and recording medium for the same |
US12/732,584 US8503868B2 (en) | 2002-10-17 | 2010-03-26 | Method for recording AV data and associated data, AV data recording apparatus, AV data reproducing apparatus and method, and recording medium |
US12/732,550 US20110075995A1 (en) | 2002-10-17 | 2010-03-26 | Device and method for recording av data, and recording medium for the same |
Applications Claiming Priority (4)
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JP2002303648 | 2002-10-17 | ||
JP2002-303648 | 2002-10-17 | ||
JP2003005058A JP3986973B2 (ja) | 2002-10-17 | 2003-01-10 | Avデータ記録方法、avデータ記録装置、データ記録媒体、及びプログラム |
JP2003-5058 | 2003-01-10 |
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US10531534 A-371-Of-International | 2003-10-15 | ||
US12/732,463 Continuation US20110075998A1 (en) | 2002-10-17 | 2010-03-26 | AV Data reproducing device, method for reproducing AV data, and recording medium for the same |
US12/732,644 Continuation US20110075986A1 (en) | 2002-10-17 | 2010-03-26 | Av data reproducing device, method for reproducing av data, and recording medium for the same |
US12/732,550 Continuation US20110075995A1 (en) | 2002-10-17 | 2010-03-26 | Device and method for recording av data, and recording medium for the same |
US12/732,584 Continuation US8503868B2 (en) | 2002-10-17 | 2010-03-26 | Method for recording AV data and associated data, AV data recording apparatus, AV data reproducing apparatus and method, and recording medium |
US12/732,663 Continuation US20110075987A1 (en) | 2002-10-17 | 2010-03-26 | Device and method for recording av data and associated data, and recording medium for the same |
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WO2004036582A1 true WO2004036582A1 (ja) | 2004-04-29 |
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JP5003017B2 (ja) | 2006-05-08 | 2012-08-15 | ソニー株式会社 | データ記録装置及びデータ記録方法、並びにコンピュータ・プログラム |
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Also Published As
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US20100239230A1 (en) | 2010-09-23 |
EP2200039A1 (en) | 2010-06-23 |
EP1555672A1 (en) | 2005-07-20 |
EP2200037A1 (en) | 2010-06-23 |
US20110075986A1 (en) | 2011-03-31 |
US20110075995A1 (en) | 2011-03-31 |
US20110075987A1 (en) | 2011-03-31 |
EP2200038A1 (en) | 2010-06-23 |
US8503868B2 (en) | 2013-08-06 |
EP2202749A1 (en) | 2010-06-30 |
EP1555672A4 (en) | 2008-04-16 |
JP3986973B2 (ja) | 2007-10-03 |
JP2004192774A (ja) | 2004-07-08 |
EP2200040A1 (en) | 2010-06-23 |
AU2003273020A1 (en) | 2004-05-04 |
US20060007814A1 (en) | 2006-01-12 |
US7817897B2 (en) | 2010-10-19 |
US20110075998A1 (en) | 2011-03-31 |
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