WO2001028237A1 - Procede d'enregistrement de donnees et procede de restauration de donnees - Google Patents
Procede d'enregistrement de donnees et procede de restauration de donnees Download PDFInfo
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- WO2001028237A1 WO2001028237A1 PCT/JP2000/007056 JP0007056W WO0128237A1 WO 2001028237 A1 WO2001028237 A1 WO 2001028237A1 JP 0007056 W JP0007056 W JP 0007056W WO 0128237 A1 WO0128237 A1 WO 0128237A1
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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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B20/1252—Formatting, e.g. arrangement of data block or words on the record carriers on discs for discontinuous data, e.g. digital information signals, computer programme data
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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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—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
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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
- G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
- G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
-
- 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
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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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
- G11B2020/1232—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc sector, i.e. the minimal addressable physical data unit
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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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
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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
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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
- G11B2220/60—Solid state media
- G11B2220/65—Solid state media wherein solid state memory is used for storing indexing information or metadata
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/84—Television signal recording using optical recording
- H04N5/85—Television signal recording using optical recording on discs or drums
Definitions
- the present invention relates to a recording method for recording a moving image sequence on a recording medium, and a data restoration method for restoring when the management information of the recorded moving image sequence is not normal.
- Disk based video and audio digital recording devices are becoming widespread. Disks have the major advantage over tapes that random access is possible. Therefore, even if the disk becomes full, additional data can be added by deleting only unnecessary data. It is also possible to freely delete or change the playback order in the middle.
- These editing functions are often realized by rewriting pointer information that points to data, rather than moving the actual data directly. This is because it can execute much faster than moving the actual data. However, if the pointer information is damaged for any reason, it is difficult to restore the recorded data to the original order.
- the disk is roughly divided into a management area 601 and a data storage area 602.
- the management area 601 is further divided into a program map 603 and a FAT (file location table) 604.
- the data area 602 is divided into blocks 605, 606,... For every fixed size, and each block is provided with an access number. Details of the program map 603 and FAT 604 are shown in FIG.
- the program map 603 manages a program unit, that is, for example, a moving image sequence unit, and holds a corresponding start FAT entry, a program name (a title), and the like.
- FAT 604 records the order in which continuous data recorded in a distributed data area 602 should be reproduced. As shown in FIG. 26, each entry constituting the FAT 604 corresponds to one block in the data overnight area 602. For example, the fifth entry corresponds to the fifth block. Each entry holds a pointer to the next entry, that is, link information. If an end code is included, the data will end in the block corresponding to the entry. If a code indicating empty is included, it means that the block corresponding to the entry is not used. In the case of FIG. 26, the program P1 in the program map 603 is recorded over 0000, 0000, and 003 blocks (entries) of the data area 602. You can see that there is. On the other hand, suppose that a time code continuous for each block is written in the data area 602 in the format of hour: minute: second: frame.
- N b in the figure represents blocks count in disk
- b is the block number that is currently the target process
- T b is the time code that has been assigned to the block b, respectively.
- curr and pre V indicate the time code assigned to the block that was processed immediately before and after.
- S i and E i represent the start block number and end block number of the i-th partial program
- BF i represents the start time code and end time code.
- a b represents the contents of b-th entry of the FAT 6 0 4.
- THR is a positive constant used to determine whether the timecode of adjacent blocks is continuous.
- N p represents the number of partial programs obtained by this block combining process.
- step S2701 block 0 is read and its time code T is read. Is assigned to the variable p r e V. In addition, a partial program with the number 0 is created, and its start block number S. 0, start timecode B. Is set to T O.
- step S2702 the current block number b to be processed is initialized to 1 and the program number to be processed is initialized to 0.
- step S2703 the loop stop condition of steps S2704-S270 is checked.
- the loop stops becomes more than N b, jumps to step S 2 7 1 1.
- step S 2 7 0 4 reads the current processing block is assigned to a variable curr representing the time code of the current process target block time code T b.
- step S2705 it is checked whether the time code prev of the immediately preceding block and the time code curr of the current block are continuous. If the difference between the em code pre V and curr is smaller than a certain constant THR, it is determined that they are continuous. If it is determined that they are continuous, step S2706 is performed. If it is determined that they are not continuous, steps S2707, S2708, S2709 are performed. Execute
- step S2706 b is substituted for the FAT entry A b -I in the RAM, and block b-1 is linked to block b.
- step S2707 the end block number of the current partial program to be processed is set to the current previous block b—1, and the end time code F; is set to the time code pre V of the immediately preceding block. .
- step S2708 the current processing target partial program number i is incremented by one.
- step S2709 the start block number S i of the current partial program to be processed is set to b, and the start time code B i is set to cu r r.
- step S2701 the time code cu rr is substituted for the variable p rev and the number of blocks to be processed is increased by one.
- step S 2711 the end block number E i of the processing target partial program is set to b—l, and the end time code F i is set to a variable pre V. In addition to set the i + 1 to the number N p of the part program.
- the second processing step is a program reproducing process for connecting the continuous time codes between the partial programs obtained by the block combining process and reproducing the entire program.
- Figure 28 shows a flowchart of this program reproduction process. First, the symbols in the figure will be described. p is the number of the partial block currently being processed, and Q is the number of the partial block whose connection with the partial block number p is to be checked. R i is a flag indicating whether the partial program i is the head of the program, and is referred to as a program head flag R i here. The meanings of the other symbols used are the same as those used in the block combination processing.
- step S 2 8 the flag R i (0 ⁇ i ⁇ N p - 1 ) is initialized to a variable true.
- step S2802 a variable for the index! ) Is initialized to 0.
- step S2803 the end condition of the loop from step S284 to S2809 is checked.
- Part Plock number p is that to continue the loop is less than N p.
- step S2804 the variable Q for the index is set to 0.
- step S2805 the end condition of the loop of steps S2806-S2808 is checked. If the variable Q is less than Np, continue the loop.
- step S2806 the continuity between the partial program p and the partial program Q is determined. If the difference between the end time code F p of the partial program p and the start time code B Q of the partial program q is smaller than the constant THR, it is determined that they are continuous, and in step S2807, the partial programs p and Q are Connecting. The connection is made as follows.
- the end time code F p and the end block number Ep of the partial program p are set to be the same as those of the partial program Q.
- step S2802 since the partial program Q is not at the beginning of the program, set “fa 1 se” to the program start flag R Q.
- step S2802 only the flag R i of the partial program corresponding to the beginning of each program is “true”. Therefore, the return is completed by writing the start block number of the partial program whose program head flag is “true” to the program map 603 (Figs. 25 and 26) in the RAM. If the management area 600 (Fig. 25) is not physically destroyed, the recovery is completed by writing the management information in RAM to the disk.
- the time code in the MPEG video standard is represented by a relative time from the beginning of video data for each video program. Therefore, if multiple video programs are recorded on a disc, there will be multiple video programs with the same time code. In that case, the data may not be restored in the correct order.
- An example is shown in Fig. 29.
- the present invention has been made in view of the problems of the prior art, and provides a means for reliably determining to which data partial data to be distributed and recorded on a disk belongs. Even if it is damaged, the purpose is to ensure the restoration of the playback order of the data recorded dispersedly on the disc. Disclosure of the invention
- the present invention has the following configuration to solve the above problems.
- the recording method of the present invention when video or image data is recorded on a recording medium, the data is divided and recorded as a plurality of units on the recording medium, and the reproduction order on a sequence is stored in this unit. Along with the information indicating the information, information for identifying the recorded device is added.
- the device ID assigned to the unit is assigned to each device even when units having the same information indicating the order of reproduction in the sequence exist on the recording medium during reproduction. As a result, the sequence can be distinguished.
- the order information of the mutual units is assumed. Is a continuous unit only if it indicates a continuous unit and has the same device ID information, and the management information indicating the playback order is restored.
- the information indicating the reproduction order in the above-described sequence may be time information for reproducing each unit, or may be a serial number indicating the reproduction order of each unit.
- FIG. 1 is a block diagram showing a configuration according to an embodiment of the present invention
- FIG. 2 is a data arrangement in a disk according to an embodiment of the present invention
- FIG. FIG. 4 is a diagram showing reproduction order management data according to the embodiment
- FIG. 4 is a diagram showing file system management information according to an embodiment of the present invention
- FIG. 5 is a diagram showing an outline of an EUS file according to an embodiment of the present invention.
- FIG. 6 is a diagram showing the structure of a bucket;
- FIG. 7 is a diagram showing the structure of the EU in one embodiment of the present invention.
- FIG. 8 is a diagram showing the structure of the VU in one embodiment of the present invention.
- FIG. 2 is a diagram showing a structure of a PRU before dubbing in one embodiment;
- FIG. 10 is a diagram showing the structure of a post-recording PRU in one embodiment of the present invention.
- FIG. 11 is a diagram relating to the arrangement of PRU in one embodiment of the present invention
- FIG. 12 is a diagram relating to the arrangement of UH-PKT in one embodiment of the present invention
- FIG. 13 is a diagram showing a sequence on a recording medium in one embodiment of the present invention.
- FIG. 14 is a diagram showing the structure of the “EUS management file” in one embodiment of the present invention.
- FIG. 15 is a diagram showing the structure of “EUSI” in one embodiment of the present invention.
- FIG. 16 is a diagram showing the structure of (“Address LUT”) in one embodiment of the present invention.
- FIG. 17 is a diagram showing a structure of “PRU Information j” in “Address LUT” in one embodiment of the present invention.
- FIG. 18 is a diagram showing a structure of “VU Informationj” in one embodiment of the present invention.
- FIG. 19 is a flow chart of an original data recording in one embodiment of the present invention.
- FIG. 20 is a flowchart showing the first half of the unit detection processing for data recovery in one embodiment of the present invention.
- FIG. 21 is a diagram showing a state after the unit detection processing of the data recovery in one embodiment of the present invention. It is a flowchart which shows a half part,
- FIG. 22 is a flowchart showing a unit recovery / restoration process of data recovery according to an embodiment of the present invention.
- FIG. 23 is a flowchart showing a file system restoration process for data restoration according to an embodiment of the present invention.
- FIG. 24 is a diagram showing sequence management data for managing a reproduction order by a partial sequence in one embodiment of the present invention.
- FIG. 25 is an explanatory diagram showing a conventional disk format.
- FIG. 26 is an explanatory diagram showing conventional management information.
- FIG. 27 is a flowchart showing a block combining process in a management information restoring procedure in a conventional disk recording method.
- FIG. 28 is a flowchart showing a program reproduction process in a management information restoring procedure in a conventional disk recording method.
- FIG. 29 is an explanatory diagram showing the order of overnight playback after recovery of management information in a conventional disk recording method.
- FIG. 1 is a block diagram showing a configuration of a video disc recorder capable of post-recording in the first embodiment.
- this device includes an operation unit 101, a CPU 102, a RAM 103, a ROM 104, a system clock 105, a buffer memory 108, an encoder 106, a multiplexer 107, a disk drive 109, a node 110, It has a multiplexer 111, a decoder 112, a disk 113, an ECC encoder Z decoder 114, and an IEEE 1394 interface 115.
- the disk 113 is loaded and unloaded in a spiral form from the outer circumference to the inner circumference.
- ECC block is composed of 16 sectors for error correction with 2048 bytes as one sector.
- the configuration of the disk 113 is shown in FIG. At the top of the disk 113 is file system management information 113a, and the rest is a user area 113b managed by the file system on a file basis.
- the user area 113b is divided into a management information area 113c and an AV stream area 113d.
- the management information area 113c includes a file related to management information, and the AV stream area 113d includes an EUS (editable 'unit' sequence) file.
- EUS editable 'unit' sequence
- the EUS file is a file in a data stream unit that records a series of video / audio data from the start of video recording to the end thereof. Hereinafter, it is simply called a sequence.
- the file in the management information area 113c includes an EUS management file storing information on the EUS file.
- each file is accessed through a file system managed by the file system management information 113a. For this reason, it is possible to access files distributed on the disk, such as EUS file # 2 in Fig. 2, by using consecutive logical addresses. That is, one sequence can be composed of a plurality of partial sequences.
- the unit for accessing with a logical address is a sector unit. An address in the following description refers to a logical address unless otherwise specified.
- sequence on the recording medium will be described with reference to FIG. As mentioned above, there are multiple sequences on the recording medium.
- a sequence A and a sequence B and each sequence is divided into units of a predetermined size. This unit is composed of a plurality of continuous sectors on the recording medium.
- A4 is the fourth unit of sequence A.
- the arrangement of such units is managed by the reproduction order management data 115.
- the file system management information 113a in FIG. 2 corresponds to the reproduction order management data 115.
- FIG. 26 An example of the file system management information 113a will be described with reference to FIG. This is almost the same as FIG. 26, and the file name is stored in the file entry 116. That way, if you know the file name, you can follow the FAT from the starting FAT entry corresponding to the file name and see how the file is located on disk. Each FAT entry has one sector, that is, two sectors.
- This file system management information 113a (FIG. 2) is generally recorded on the same recording medium as that storing the file, but need not be the same. If the file system management information 113a can recognize the recording positions of a plurality of recording media, management may be performed over a plurality of recording media.
- Original video is encoded at a variable rate of about 5 Mbps using MPEG-2 encoding
- audio is sampled at 48 kHz for both original and audio dubbing, and encoded at a fixed rate of 256 kbps for 2 channels using MPEG-1 / Layer II encoding.
- the EUS file (Fig. 5) is a file that stores the EUS, which is the unit of a multiplexed data stream of video and audio information.
- Figure 5 shows the general structure of EUS.
- Block B 1 A fixed-length unit of 2048 bytes corresponding to a sector.
- Video data and IS 0 IEC 138 specified in EC 13818-2 It is composed of audio data and other data specified in 18-3, which are packetized into PES buckets specified in ISOZI EC 13818-1.
- VU Video Unit
- PRU Bit Recording Unit
- This area is used to record the lost recording data (recording data) related to multiple VUs. Consists of block B1.
- EU Erddy Unit: Consists of multiple VUs and corresponding 0 or 1 PRU. One EU records continuously on the disc.
- EUS Eddy unit sequence: A unit corresponding to the section from recording start (Rec Start) to stop (Stop) or pause (Pause), and consists of an integer number of EUs. You.
- the block bl in the figure is a unit of a fixed length of 2048 bytes, and one block is stored in one sector.
- One block is basically composed of one packet.
- the packet here conforms to “PES packet” specified in ISOZI EC 13818-1.
- Fig. 6 shows the structure of the packet.
- the packet PKT is composed of a bucket header PKT1 for storing attributes and the like relating to the packet, and bucket data PKT2 for storing actual data such as video data.
- the main information included in the packet header PKT1 is as follows.
- Packet-start-code-prefixj is the start code of the packet specified in ISO 13818-1.
- Stream-id indicates the type of the packet PKT.
- PES-packet-length indicates the size of data after this field.
- rPES-header-date-lengthJ indicates the size of this packet header PKT1.
- PTS Presentation Time Stamp
- DTS Decoding Time Stamp
- rstuffing-bytesj is used to adjust the size of the packet PKT as described below.
- V—PKT Video 'Packet
- A—PKT (Audio 'Packet): A bucket that stores audio data specified by IS ⁇ ZI EC 13818-3.
- UH-PKT (Unit 'header' packet): A packet that stores the headers related to VU and PRU.
- V- PKT The format of V- PKT, A- PKT and P- PKT is ISOZI Complies with the provisions of EC 13818-1. Other packet formats will be described later.
- the block b1 that constitutes EUS is summarized below.
- V-BLK Video Block
- A-BLK (Audio 'Block): A—Block containing PKT.
- P—BLK (Putting 'Block): P—Block containing PKT.
- UH-BLK Unit 'Header' block
- Figure 7 shows the EU structure.
- the EU includes one or more integer VUs and zero or one PRU.
- the presentation time of the VUs that make up one EUS shall be the same. However, the last VU of the EUS may be shorter than the other VUs. In other words, the playback interval of VUs in one EUS is always the same.
- the presentation time of the VU is defined as the number of video fields or video frames included in the VU multiplied by the video field cycle or video frame cycle, respectively.
- the EUs that make up one EUS must either all contain PRUs (Fig. 7 (a)) or not contain any PRUs (Fig. 7 (b)).
- the bit rate of the entire EUS is Ro
- the bit rate per channel of the after-recording audio Ra
- the number of channels of the after-recording audio Nch
- the function ceiling (x) is a function to find the smallest integer greater than or equal to x
- the function floor (x) is a function to find the largest integer less than x.
- the VU consists of a video data consisting of one integer GOP (group 'ob' picture) immediately preceding “seQuence-header” followed by “G0P-header”, and an integer number of A AUs synchronized with it. Includes audio overnight (audio 'access' unit).
- GOP is a unit of MPEG video compression, and is composed of a plurality of field groups or frame groups.
- AAU is obtained by segmenting audio samples every 0.024 seconds and compressing each segment.
- VU includes an integer number of each, it can be played back independently in VU units.
- the number of video fields per VU should be within the range of 24 to 60 fields for NTSC (National Television System Co-location) and 20 to 50 fields for PAL (Phase Alternation by Line).
- the VU consists of a unit 'header' block (UH-BLK), Next, the A-BLK column storing the above-mentioned audio data is placed, and finally the V-BLK column storing the above-mentioned video data is arranged.
- A-BLKs should be sufficient to store the audio data mentioned above. If the last A-BLK is left, adjust with P-PKT or stuffing byte as described above. V-BLK has the same configuration. Next, the PRU will be described.
- the PRU is an area for storing audio data for one or more integer VUs, and there are zero or one PRU in one EU.
- the PRU size is the smallest integer number of ECC blocks that can include audio data and PRU header blocks corresponding to the presentation time per EU.
- the audio data recorded in a PRU shall be recorded at the same data rate and the same sampling frequency as the audio of the VU in the EU containing the PRU.
- Fig. 9 shows the structure of the PRU immediately after recording the original data. At the beginning, record one unit header block (UH-BLK) and fill the remaining area with padding blocks (P-BLK). That is, no audio data is recorded immediately after the original data recording.
- UH-BLK one unit header block
- P-BLK padding blocks
- Figure 10 shows the structure of the PRU after audio dubbing on the PRU.
- one unit header 'block UH-BLK
- UH-BLK unit header 'block
- Padding 'data P-BUG padding.
- 8-8 K in? 1 11 should be the same as the total number of A-BLKs included in each VU in the same EU.
- Post-recording audio so that the value of the PTS of each A-BLK in the PRU takes the same order and the same value as the P-TS of the A-BLK contained in each VU in the EU.
- the data is recorded, that is, in the post-recording PRU, there is an A-BLK column corresponding to the A-BLK column included in each VU.
- A-BLK sequence in SAUs (Sub Audio Units) S.
- SAUs contain an integer number of AAUs like VUs.
- the PRU is placed on the ECC boundary within the first 15 sectors of the EU in which it is contained, ie, the first ECC boundary in the EU. For example, if the head of a certain EU is on the ECC block boundary, a PRU is placed immediately after the head of the EU as shown in Fig. 11 (a). If the beginning of the EU is not the ECC block boundary, as shown in (b), the ECC block boundary within 15 logical blocks immediately after the EU boundary, that is, the first ECC block boundary in the EU To place. In this case, the first VU in the EU will be divided by PRUs.
- Fig. 12 shows the structure of UH-PKT.
- the BP (byte 'position) in the figure is the relative byte position from the beginning, and the number of bytes indicates the number of bytes in each field.
- the field “Unit Propertyj is a 1-byte bit field that stores information about the unit (PRU and VU) that contains this unit header.
- The“ Unit Vj of EUJ and the field Recorder ID Forma t "exists.
- the field "First VU of EUJ is set to 1 if the unit containing the UH-PKT is the first VU in the EU and 0 otherwise.
- the field Recorder ID Format is a 2-bit field, where 01b (xxb indicates XX is a binary number), MAC (media 'access control) address (device ID in Ethernet), 10b In this case, it means that the GUID (Global Unique 'ID: device ID in IEEE 1394) is stored in the field "Recorder IDj.
- the field" Recorder IDj indicates the ID of the device that recorded the unit.
- GPS Time Stamp OffsetJ is a field that stores the date and time when the recording of the EUS that includes the unit started, and the number of seconds since 00:00:00 (UTC: Universal Time Coordinated) on January 6, 1980 is 32 bits. Represented by an unsigned integer.
- UnitJ indicates the number of blocks in the unit including this unit 'header.
- rstart RLBN of Video Dataj indicates the number of blocks from the beginning of the unit to the start of video data.
- UH—PKT is placed at the beginning of a sector independent of other data, and the beginning of the packet is “packet-start-code-prefix”, “stream-id (0000 0000 0000 0000 0001 1011 1101b)” Therefore, even if the file system is damaged, it can be easily detected by reading the sectors in order.
- Fig. 14 shows the structure of the EUS Management file.
- the EUS management file stores information for managing all EUS files recorded on the disc.
- the field "Number of EUSIJ" indicates the number of EUS files managed by this file.
- EUS I EUS Information
- EUS I is further configured as shown in Fig. 15.
- Start PTJ and “End PTj” in the figure are EUS files managed by “EUS I”.
- the uppermost bits of the start PTS and end PTS are omitted.
- the format in which the most significant bit of the PTS is omitted in this manner is called a PT format.
- rpost Recording Unit Sizej indicates the size of the PRU in the EUS file managed by this EUS I.
- Address LUT (Lookup 'Table)' is a table for searching the timecode described in PT format for the address where the data corresponding to the timecode is recorded.
- Figure 16 shows the configuration of the “Address LUT”.
- PB Time of EUJ indicates the presentation time per EU in units of 1 Z 90000 [seconds], and has the same scale as the PT format.
- Time of VU represents the presentation time per VU in 190000 [seconds] units.
- rNumber of PRU Informationj indicates the number of "PRU Informationj in" Address LUTj, as well as the number of PRUs in EUS.
- rNumber of VU Informationj indicates “the number of“ VU Information j ”in“ Address LUTj ”and the number of VUs in EUS.
- Fig. 17 shows the contents of "PRU Informationj."
- "RLBN of PRU” in the figure shows the address of the PRU managed by the PRU Informationj.
- Fig. 18 shows the contents of "VU Informationj.”
- "BLBN 'of VII" in the figure indicates the address of the VU managed by "VU Informationj.”
- the video is recorded in NTSC
- the VU is composed of one GOP consisting of 30 fields, and the maximum video bit rate is 8 [Mbps].
- the disk transfer rate Rs is 12 [Mbps]
- the maximum jump time Tk to the after-recording area is 0.3 [second]
- the maximum rotation waiting time Tv is 0.2 [second].
- the audio bit rate and the number of audio channels are set to 0.125 [Mbps Z channel] and 2 [channels], respectively, and are used commonly for the original and post-recording.
- the presentation time Tp V per VU is about 0.5 seconds by the above GOP configuration.
- the range of the number of VUs per EU Nv u where dubbing is possible is 7 ⁇ Nvu ⁇ 20.
- Nvu 8 that is, the presentation time per EU is about 4 seconds.
- the CPU 102 activates the encoder 106 (step S1901), and then checks based on the file system management information whether there is enough continuous area on the disc to record the data for the EU (step S1902). . If not, the recording is stopped (step S1912). In step S1902, if there is a sufficient area, the variable i indicating the number of the VU in the EU to be recorded is reset to 0, and the free area start address is stored in the variable addr (step S1902). SI 903).
- step S1904 it waits for a notification that 1 VU worth of data from the multiplexer 107 has been buffered in the buffer memory 108 (step S1904).
- the variable i is determined (S1905). If the variable i is 0, it is determined whether the variable addr is on the ECC block boundary (step S1909). If it is not on the ECC block boundary, the VU data in the buffer memory 108 is transferred to the next ECC block boundary. The information is recorded on the disk (step S1910).
- a PRU is configured in the RAMI 03 with UH-PKT and P-PKT, and the PRU is recorded on the disk (step S1911).
- step S1906 the first VU data in the buffer memory 108 is recorded on the disk (step S1906).
- the variable i is incremented (step S1907). If the variable i is smaller than the variable Nvu representing the number of VUs in the EU, the process jumps to step S1904 (step S1908), and if they are equal, jumps to step S1902.
- the above processing is performed in EU units until a stop command is received from the operation unit 101 or a sufficient continuous area is not left in the disk.
- the multiplexer 107 adds a PTS or the like to the data sent from the encoder 106 for each of audio and video, converts the data into a packet, and stores the packet in the buffer memory 108.
- the multiplexer 107 receives the recording start date and time and the GUID of the IEEE_1394 interface 115 from the CPU 102, and forms a UH-PKT (FIG. 12).
- the CPU 102 is notified to the CPU 102 that VU worth of data has been buffered.
- FIG. 20 shows a flowchart of the unit detection process.
- b indicates the number of the sector to be processed.
- N v and N p denotes respectively the number of discovered of VU and PRU.
- S v [i], I v [i], ⁇ v [i], P v [ i], L v [i] respectively, i th detected VU start sector number, "Recorder IDj," GPS Time Stamp Offsetj, represent "Unit Start PTj, run it Length], respectively.
- step S 2001 the unit detection processing will be described with reference to the flowchart of FIG. First, b, N v, sets New [rho to 0, respectively (step S 2001).
- Step S 2005 it is determined whether the unit managed by the UH-BLK is a PRU or a VU.
- VU the unit managed by the UH-BLK
- step S2006 If it is determined to be PRU, the process jumps to step S2008.
- Step S 2006 among the various fields of UH-BLK, "Recorder
- step S2007 Nv is incremented.
- step S2008 the values of various fields of UH-BLK are stored in various variables related to ⁇ ⁇ ⁇ RU.
- step S 2009 to increment the ⁇ ⁇ .
- step S2010 b is incremented, and the process jumps to step S2002.
- Figure 21 shows a flowchart of the process for linking VUs and PRUs.
- X v [j] represents the PRU number corresponding to the j-th VU.
- a value of -1 indicates that there is no corresponding PRU.
- Step S2101 variables are initialized (step S2101).
- Step S 2102 ⁇ S 2108 increments the index i which points to the PRU, i is repeated for less than N p.
- step S2105 among the variables of the i-th PRU and the j-th VU, the variables indicating “Re corder IDj,” “GPS Time Stamp Offset,” and “Unit Start PTj” are compared, and if all match. For example, substitute i for X v [j] By the above processing, the PRU reproduced at the same timing as the jth VU can be found by referring to the value of X v [j]. .
- FIG. 22 shows a flow of a unit reproduction order restoration process for restoring the order between VUs. The newly defined symbols are explained. ne xt [i] stores the number of the VU following the i-th VU.
- t op [i] is a flag indicating whether the i-th VU is at the beginning of the sequence (EUS). If “true”, it means the head, and if “false”, it means the non-head.
- P and q represent the numbers of the preceding and following VUs of the two VUs that are currently subject to continuity determination.
- THR is a threshold value for judging the continuity of VUs. In this embodiment, 1 second, which is the upper limit of the presentation time per VU, is expressed in units of 190000 [seconds], that is, 90000.
- step S2201 initialization of next [i] and top [i] is performed, and it is assumed that each VU has no succeeding VU and is located at the head of the EUS.
- step S2202 p is initialized.
- step S2203 the end conditions of steps S2204 to S2209 are checked.
- step S2204 Q is initialized.
- step S2205 the end conditions of steps S2206 to S2208 are checked.
- step S2206 it is checked whether the Qth VU follows the pth VU. ⁇ v [p] and O v [Q] match, I v [p] and I v [q] match, and P v [p] is smaller than P v [q], and P v [q] Is less than or equal to P v [p] + T HR, it is determined that the p-th VU is followed by the Q-th VU, and the process jumps to step S2207. Do not satisfy the condition of step S2206. If not, the process proceeds to step S2208.
- step S2207 q is stored in ne st [p] to indicate that the p-th VU is followed by the Q-th VU. Furthermore, since the Qth VU is not the head of EUS, store “fa1se” in t0p [Q].
- the index variable p of the VU and the index variable i of the file entry are initialized (step S2301).
- step S2322 the conditions for ending the processing in steps S2303 to S2314 are checked.
- step S2303 it is checked whether the p-th VU is the head of EUS. If so, jump to step S2304; otherwise, skip to step S2313.
- step S2304 the value of p is stored in Q, which is a variable for following the VU chain.
- step S2305 the start sector number of the Qth VU is substituted for file [i]. However, if X v [Q] is larger than 0 and S p [X v [q]] is smaller than S v [q], it is determined that they are arranged as shown in Fig. 11 (a). , Fi 1 e [i] Is set to Sp [X v [q]].
- step S 2306 if the values are the start sector number of Q-th VU S v [q] and VU number of sectors L v a [q] in the variable b and the variable g.
- X v [q] is 0 or more, that in the case with corresponding PRU, when towards S p [X v [q] ] is S v [q] smaller, PRU is the 11 (a) It is determined that they are arranged as shown in the figure, and Sp [Xv [q]] is set in b.
- substitute L v [q] + L P [X v [q]] for g to include the size of the PRU.
- steps S2307 to S2309 while g is greater than 0, storage of b + 1 in A [b] (step S2308), increment of b, and decrement of g (step S2309) are repeated. By repeating this, the FAT is repaired for the VU (or if the EUS has a PRU, the first VU of the EUS includes the PRU).
- step S2307 If g becomes 0 in step S2307, the process jumps to step S2310.
- step S2310 the number nextt [q] of the succeeding VU is stored in Q. If Q is -1, that is, if there is no subsequent VU, the process jumps to step S2312, otherwise, jumps to step S2314.
- step S2314 the start sector number of the Qth VU is stored in A [b], and the flow jumps to step S2306. However, this time, as in step S 23 06, if X v [q] is 0 or more, if i.e. corresponding PR U is present, the start sector number S p of the PRU [X v [q] ] And store the smaller value in A [b].
- step S2312 a value indicating the end is stored in A [b], and i is To reset.
- a [b] and file [i] on the RAMI 03 are recorded in the FAT and file entry on the disk 113, respectively. At this time, give each file name in the file entry a name that is unique from other files.
- each EUS can be accessed as a normal file, and the EUS can be played back from the beginning by reading the sections in the order given by the file system and recording the EUS in the order in which they were recorded. .
- FAT is used as the sequence reproduction management information.
- the information on the partial sequence consists of the start sector number of the partial sequence and the number of sectors in the continuous area (the start and end sectors may be used).
- the reproduction management order information in the present invention is not limited to the FAT, and as shown in FIG. 3, any management method may be used as long as it is information for managing the unit reproduction order. Is also good.
- the interval at which UH-PKT is placed is set to several seconds, but the interval at which similar information is placed can be set to a longer unit or a shorter unit (for example, a sector unit).
- the VUs have the same playback time, but the interval indicating the information indicating the continuity may not be a unit of time but may be a unit of time.
- the interval indicating the information indicating the continuity may not be a unit of time but may be a unit of time.
- You don't have to since the area from one UH-PKT to the area immediately before the next UH-PKT must be recorded continuously, if the interval is set too long, the use of free space on the disc becomes more limited. On the other hand, if the interval is set too short, waste increases.
- the ID of the device that recorded the unit is recorded in UH-PKT, but the following variations are also conceivable.
- Some types of devices do not have network functions such as IEEE-1394 and Ethernet, and do not have unique IDs of the device. In this case, it is conceivable to provide UH-PKT with information to distinguish whether the unit was recorded by the device or copied from another device. In this case, it is not possible to distinguish between units recorded by other devices, but it is possible to distinguish a unit recorded by another device from a unit recorded by that device. Only can be reliably restored.
- the ID of the camera or the ID of the input channel may be recorded in UH-PKT.
- the “information for identifying a device” in the present invention is not limited to the ID provided specifically for the device, and can specify a source of data such as an input channel in the device. Any information is acceptable.
- the present invention at the time of reproduction, even when information indicating the reproduction order in the sequence exists on the recording medium, even if the same unit exists, it is uniquely assigned to each device. Since the device ID is assigned, the sequence can be distinguished. As a result, even if the units are distributed and recorded on the recording medium and the file system that manages the order of the distributed units is damaged, the management information is restored and the sequence is reliably performed. Can be reproduced. Industrial applicability
- the data recording method and the data recovery method according to the present invention are intended to ensure the restoration of the reproduction order of the data dispersedly recorded on the disk even if the file system is damaged. It is suitable for data recording medium recording and recovery methods.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Television Signal Processing For Recording (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP00966415A EP1227679A4 (en) | 1999-10-12 | 2000-10-11 | DATA RECOVERY PROCESS AND DATA RECOVERY PROCESS |
CA002385727A CA2385727C (en) | 1999-10-12 | 2000-10-11 | Data recording method and data recovery method |
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JP11/288993 | 1999-10-12 | ||
JP28899399A JP2001111960A (ja) | 1999-10-12 | 1999-10-12 | データ記録方法及びデータ復旧方法 |
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WO2001028237A1 true WO2001028237A1 (fr) | 2001-04-19 |
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PCT/JP2000/007056 WO2001028237A1 (fr) | 1999-10-12 | 2000-10-11 | Procede d'enregistrement de donnees et procede de restauration de donnees |
Country Status (6)
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EP (1) | EP1227679A4 (ja) |
JP (1) | JP2001111960A (ja) |
KR (1) | KR100470844B1 (ja) |
CN (2) | CN1213603C (ja) |
CA (1) | CA2385727C (ja) |
WO (1) | WO2001028237A1 (ja) |
Families Citing this family (19)
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JP2003100016A (ja) * | 2001-09-26 | 2003-04-04 | Matsushita Electric Ind Co Ltd | ディスク媒体の記録再生装置及び記録再生方法 |
US7889968B2 (en) | 2002-06-24 | 2011-02-15 | Lg Electronics Inc. | Recording medium having data structure for managing reproduction of multiple reproduction path video data for at least a segment of a title recorded thereon and recording and reproducing methods and apparatuses |
CN101350214B (zh) | 2002-06-24 | 2015-07-01 | Lg电子株式会社 | 记录和再现用于视频数据的再现的数据结构的方法及装置 |
KR20040000290A (ko) | 2002-06-24 | 2004-01-03 | 엘지전자 주식회사 | 고밀도 광디스크의 멀티 경로 데이터 스트림 관리방법 |
AU2003241203B2 (en) | 2002-06-24 | 2009-08-20 | Lg Electronics Inc. | Recording medium having data structure for managing reproduction of multiple reproduction path video data recorded thereon and recording and reproducing methods and apparatuses |
KR100554767B1 (ko) | 2002-06-28 | 2006-02-22 | 엘지전자 주식회사 | 다중 경로 데이터의 기록 및 재생을 관리하기 위한 데이터구조를 갖는 기록 매체와 그에 따른 기록 및 재생 방법 및장치 |
CA2459070C (en) | 2002-06-28 | 2013-10-22 | Lg Electronics Inc. | Recording medium having data structure for managing reproduction of multiple playback path video data recorded thereon and recording and reproducing methods and apparatuses |
JP3986973B2 (ja) | 2002-10-17 | 2007-10-03 | シャープ株式会社 | 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 |
AU2003276759A1 (en) | 2002-11-08 | 2004-06-07 | Lg Electronics Inc. | Method and apparatus for recording a multi-component stream and a high-density recording medium having a multi-component stream recorded theron and reproducing method and apparatus of said recording medium |
US7720356B2 (en) | 2002-11-12 | 2010-05-18 | Lg Electronics Inc | Recording medium having data structure for managing reproduction of multiple reproduction path video data recorded thereon and recording and reproducing methods and apparatuses |
US7783160B2 (en) | 2002-11-20 | 2010-08-24 | Lg Electronics Inc. | Recording medium having data structure for managing reproduction of interleaved multiple reproduction path video data recorded thereon and recording and reproducing methods and apparatuses |
US7809775B2 (en) | 2003-02-27 | 2010-10-05 | Lg Electronics, Inc. | Recording medium having data structure for managing playback control recorded thereon and recording and reproducing methods and apparatuses |
WO2004077417A1 (en) | 2003-02-28 | 2004-09-10 | Lg Electronics Inc. | Recording medium having data structure for managing random/shuffle reproduction of video data recorded thereon and recording and reproducing methods and apparatuses |
DE102004001207A1 (de) * | 2004-01-06 | 2005-07-28 | Deutsche Thomson-Brandt Gmbh | Verfahren und Vorrichtung zum Aktualisieren von Daten auf einem Plattenspeichermedium |
US20100127922A1 (en) * | 2008-11-21 | 2010-05-27 | Emerson Electric Co. | System for sharing video captured at jobsite |
CN102117623B (zh) * | 2009-12-30 | 2012-07-04 | 北大方正集团有限公司 | 一种磁带元数据的恢复方法及装置 |
KR101591911B1 (ko) | 2014-06-11 | 2016-02-05 | (주)에이티앤비 | 자동 제진 및 제설 장치 |
KR101632689B1 (ko) | 2014-09-16 | 2016-06-23 | 상명대학교서울산학협력단 | 멀티미디어 조각파일의 복구방법 |
CN109803107B (zh) * | 2019-01-09 | 2021-06-22 | 安徽睿极智能科技有限公司 | 多媒体数据的嵌入式文件系统及其快速读写方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09130718A (ja) * | 1995-11-02 | 1997-05-16 | Sony Corp | 撮像装置及び編集装置 |
JPH1070698A (ja) * | 1996-08-28 | 1998-03-10 | Sony Corp | データ管理装置およびその方法 |
JPH11162119A (ja) * | 1997-11-28 | 1999-06-18 | Toshiba Corp | データ処理装置および同装置に適用されるデータ記録/再生方法 |
JPH11275516A (ja) * | 1997-12-10 | 1999-10-08 | Hitachi Ltd | ディジタル放送信号の受信装置、記録再生装置及び受信・記録再生システム |
JP2000057745A (ja) * | 1998-06-22 | 2000-02-25 | Samsung Electronics Co Ltd | 記録デ―タの生成のための方法と装置、記録媒体の再生のための方法と装置及び製造業体の特殊機能を支援するための記録媒体 |
JP2000132910A (ja) * | 1998-10-22 | 2000-05-12 | Sony Corp | 情報記録再生装置および方法、並びに提供媒体 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1084334A (zh) * | 1992-09-12 | 1994-03-23 | 石家庄高新技术产业开发区计算机网络通信公司 | 面向计算机的信息广播方法及其专用设备 |
EP0632445B1 (en) * | 1993-06-07 | 2002-01-23 | Hitachi, Ltd. | Digital information recording-reproducing apparatus |
JP4110593B2 (ja) * | 1997-05-19 | 2008-07-02 | ソニー株式会社 | 信号記録方法及び信号記録装置 |
US5978814A (en) * | 1998-01-21 | 1999-11-02 | Microsoft Corporation | Native data signatures in a file system |
-
1999
- 1999-10-12 JP JP28899399A patent/JP2001111960A/ja active Pending
-
2000
- 2000-10-11 EP EP00966415A patent/EP1227679A4/en not_active Withdrawn
- 2000-10-11 CA CA002385727A patent/CA2385727C/en not_active Expired - Fee Related
- 2000-10-11 CN CNB008170649A patent/CN1213603C/zh not_active Expired - Fee Related
- 2000-10-11 KR KR10-2002-7004647A patent/KR100470844B1/ko not_active IP Right Cessation
- 2000-10-11 CN CN200510074044XA patent/CN1700337B/zh not_active Expired - Fee Related
- 2000-10-11 WO PCT/JP2000/007056 patent/WO2001028237A1/ja active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09130718A (ja) * | 1995-11-02 | 1997-05-16 | Sony Corp | 撮像装置及び編集装置 |
JPH1070698A (ja) * | 1996-08-28 | 1998-03-10 | Sony Corp | データ管理装置およびその方法 |
JPH11162119A (ja) * | 1997-11-28 | 1999-06-18 | Toshiba Corp | データ処理装置および同装置に適用されるデータ記録/再生方法 |
JPH11275516A (ja) * | 1997-12-10 | 1999-10-08 | Hitachi Ltd | ディジタル放送信号の受信装置、記録再生装置及び受信・記録再生システム |
JP2000057745A (ja) * | 1998-06-22 | 2000-02-25 | Samsung Electronics Co Ltd | 記録デ―タの生成のための方法と装置、記録媒体の再生のための方法と装置及び製造業体の特殊機能を支援するための記録媒体 |
JP2000132910A (ja) * | 1998-10-22 | 2000-05-12 | Sony Corp | 情報記録再生装置および方法、並びに提供媒体 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1227679A4 * |
Also Published As
Publication number | Publication date |
---|---|
CA2385727C (en) | 2005-03-01 |
EP1227679A1 (en) | 2002-07-31 |
EP1227679A4 (en) | 2004-07-07 |
CN1409924A (zh) | 2003-04-09 |
CN1700337B (zh) | 2011-01-19 |
CN1700337A (zh) | 2005-11-23 |
KR100470844B1 (ko) | 2005-03-10 |
CA2385727A1 (en) | 2001-04-19 |
KR20020041454A (ko) | 2002-06-01 |
JP2001111960A (ja) | 2001-04-20 |
CN1213603C (zh) | 2005-08-03 |
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