WO2004061844A1 - 光記録方法及び光記録装置 - Google Patents
光記録方法及び光記録装置 Download PDFInfo
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- WO2004061844A1 WO2004061844A1 PCT/JP2003/014745 JP0314745W WO2004061844A1 WO 2004061844 A1 WO2004061844 A1 WO 2004061844A1 JP 0314745 W JP0314745 W JP 0314745W WO 2004061844 A1 WO2004061844 A1 WO 2004061844A1
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- Prior art keywords
- recording
- data
- optical recording
- recorded
- dvd
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Classifications
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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
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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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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
-
- 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
Definitions
- the present invention relates to an optical disk for recording data on an optical recording medium capable of recording and reproducing data, such as a DVD-R (DVD Recordable) or a DVD-RW (DVD Re-recordable). Apparatus and method.
- DVD-RZ-RW In order to reproduce data recorded on DVD-R or DVD-RW (hereinafter referred to as DVD-RZ-RW) with these playback devices or PCs, 0-! It is necessary to convert the data recorded in / ⁇ 1 ⁇ ⁇ into a predetermined format conforming to the 0 0—ideo format. In addition,? In order to reproduce the data recorded in 13 0—1 / 1 / RW in ⁇ , the data recorded in DV—RZ—RW must conform to the Universal Disk Format (UDF) standard. is there.
- UDF Universal Disk Format
- Incremental Reco There are the rding method (hereinafter, referred to as the INC method) and the Restricted Overwrite method (hereinafter, referred to as the ROW method).
- the INC method is mainly used for DVD-R, etc., and is a method for sequentially recording moving images.
- the iOW method is mainly used for DVD-RW, etc., and is used to randomly record moving images. This is a recording method.
- the recording management area (RMA) provided on the inner side of the read-in holds the recording management information of the entire optical disc such as the reservation of the recording area and the address to be recorded next. It has been done.
- An object of the present invention is to provide a novel optical recording method and an optical recording apparatus that can solve the problems of the conventional technology as described above.
- a more specific object of the present invention is to provide an optical recording method and an optical recording apparatus capable of reliably performing a finalizing process on an optical recording medium.
- the present invention proposed to achieve the above object is an optical recording method in an optical recording apparatus for recording data on an optical recording medium, wherein a finalizing process is divided into a plurality of processes. Execution and a non-volatile memo at the end of each process. It is characterized in that it is stored in the memory.
- the remaining amount of the battery is checked before the start of each process, and it is determined whether or not the process to be executed with the remaining amount of the battery is completed. Execute the process.
- the finalizing process when the remaining battery power is not sufficient, the finalizing process is interrupted in the process, and when the remaining battery power becomes sufficient, the process after the process recorded in the nonvolatile memory is performed. Restart the finalizing process.
- the present invention relates to an optical recording apparatus for recording data on an optical recording medium, wherein the finalizing process is divided into a plurality of processes and executed, and each time one process is completed, that effect is stored in a nonvolatile memory. There is provided control means for storing.
- control unit checks the remaining battery level before starting each process, determines whether the process to be executed with the remaining battery level ends, and determines whether the remaining battery level is sufficient. Then, execute the process.
- control means suspends the finalizing process in the process, and records the data in the nonvolatile memory when the remaining battery power becomes sufficient.
- the finalizing process is restarted after the performed process.
- FIG. 1 is a block diagram showing a configuration of an optical disk recording / reproducing apparatus to which the present invention is applied.
- FIG. 2A to FIG. 2G are diagrams for explanation of DVD—Video Format.
- FIG. 3 is a flowchart showing a procedure of a process executed when power is turned on in the optical disc recording / reproducing apparatus according to the present invention.
- FIG. 4 is a flowchart showing a procedure of an image file recording process in the optical disc recording / reproducing apparatus.
- FIGS. 5A to 5H show moving image files by the INC method in an optical disk recording and reproducing apparatus. It is a figure provided for explanation of aisle recording processing.
- FIG. 6 is a front view showing an outline of the finalizing process in the optical disc recording / reproducing apparatus.
- FIG. 7 is a flowchart showing the procedure of the 7 Omm padding process in the finalizing process.
- FIG. 8 is a flowchart showing the procedure of the UDF creation process in the finalization process.
- FIG. 9 is a flowchart showing a procedure of a VMG creating process in the finalizing process.
- FIG. 10 is a flowchart showing the procedure of the Lead In / Lead Out writing process in the finalizing process.
- FIG. 11 is a flowchart showing a procedure of a reproduction process of an image file in the optical disc recording / reproducing apparatus.
- FIGS. 12A to 12G are diagrams for explaining a recording process of a moving image file by the ROW method in the optical disc recording / reproducing apparatus.
- BEST MODE FOR CARRYING OUT THE INVENTION an optical recording method and an optical recording apparatus according to the present invention will be described in detail with reference to the drawings.
- the present invention is applied to, for example, an optical disc recording / reproducing apparatus 100 having a configuration as shown in FIG.
- the optical disc recording / reproducing apparatus 100 shown in FIG. 1 stores the input stream data in the random access memory 15, reads out the stream data stored in the random access memory 15 by a predetermined amount, and reads out the data.
- the stream data for each predetermined amount is recorded on the optical disc 2.
- playback management information to be used when playing back a predetermined amount of stream data recorded on the optical disc 2 from the optical disc 2 is generated, and the generated playback management information is stored in the random access memory 22 for random access.
- the playback management information is stored in the flash memory 16 which is a nonvolatile storage medium.
- the optical disc recording / reproducing apparatus 100 having such a configuration, when recording a predetermined amount of stream data on the optical disc, shuts off the power supply of the optical disc recording / reproducing apparatus 100, If the playback management information stored in the access memory 15 is lost before being recorded on the optical disk 2 and the stream data is incompletely recorded on the optical disk 2, the playback stored in the flash memory 16 Incompletely recorded stream data can be restored based on management information.
- the optical disk recording / reproducing apparatus 100 shown in FIG. 1 uses a DVD-R (DVD Recordable) or a DVD-RW (DVD Re-recordable) as the optical disk 2, and records the imaging result on the optical disk 2. It was done.
- DVD-R DVD Recordable
- DVD-RW DVD Re-recordable
- the optical disk recording / reproducing apparatus 100 is, specifically, a portable camera-integrated video recorder, which uses a DVD-R (DVD Recordable) as an optical disk 2 as a recording medium, and captures imaging results on the optical disk 2. It is recorded in the format.
- DVD-R DVD Recordable
- the optical disc recording / reproducing apparatus 100 includes a video input unit 3, an audio input unit 5, a compression Z decompression processing unit 6, a header information processing unit 7, and a random access memory (RAM). 9), system controller 10, operation unit 11, monitor unit 12, video Z audio encoder 13, DVD signal processing unit 14, random access memory 15, flash memory 16 An analog front end section 17, a motor drive control section 18, an optical head 19, a spindle motor 20, a thread motor 21 and a random access memory 22.
- the compression Z decompression processing unit 6 includes a video processing unit 61, an audio processing unit 62, and a multiplexing processing unit 63.
- the video input unit 3 converts a video signal, which is an imaging result obtained by imaging means (not shown), or a video signal input from an external device, into a digital signal.
- the video data is generated and supplied to the compression Z expansion processing unit 6, the monitor unit 12, and the video Z audio encoder 13.
- the built-in image pickup means is controlled by the system controller 10,
- the imaging result is output, whereby the video input unit 3 inputs the video data in accordance with the control of the imaging unit by the system controller 10.
- the audio input unit 5 generates audio data by converting an audio signal acquired by a microphone or an audio signal from an external input into a digital signal, and generates a compression / decompression processing unit 6, a monitor unit 12, and a video / Supply to audio encoder 13.
- the operation of the compression Z decompression processing unit 6 is switched under the control of the system controller 10, and at the time of recording, the random access memory 9 is used to compress the video data and the audio data in a random manner.
- the data is multiplexed and output to the header information processing unit 7.
- the data obtained from the header information processing section 7 is separated into video data and audio data by using the random access memory 9 and then decompressed, respectively, to the monitor section 12 and the video audio encoder.
- the video processing section 61 decompresses the video data output from the multiplexing processing section 63 in accordance with the data compression format and outputs the data.
- the audio processing section 62 compresses and outputs the audio data input from the audio input section 5 according to a format such as MPEG, Dolby audio, or linear PCM during recording, and performs multiplexing processing during playback.
- the audio data obtained from the section 63 is decompressed and output.
- the multiplexing processing section 63 time-division multiplexes the video data output from the video processing section 61 and the audio data output from the audio processing section 62 during recording and outputs the multiplexed data to the header information processing section 7.
- the video data and audio data are separated from the time-division multiplexed data output from the header information processing unit 7 and output to the video processing unit 61 and the audio processing unit 62, respectively. .
- the monitor unit 12 is a display mechanism for monitoring video data input from the video input unit 3, audio data input from the audio input unit 5, or video data and audio data output from the compression Z expansion processing unit 6. And the voice processing mechanism It is composed of In the optical disc recording / reproducing apparatus 100, the monitor section 12 can monitor the imaging result and the reproduction result.
- the video / audio encoder 13 converts the video data and audio data input from the audio input unit 5 or the video data and audio data output from the compression Z decompression processing unit 6 in a predetermined format. Compress and output to external device. Thus, in the optical disc recording / reproducing apparatus 100, the imaging result and the reproduction result can be monitored by an external device.
- the header information processing unit 7 receives the time-division multiplexed data output from the compression / Z-expansion processing unit 6 at the time of recording and, under the control of the system controller 10, controls the header information specific to the DVD and the header information of the extension file.
- the data is output with the information added from the system controller 10, and data such as UDF, VMG, and VTSI is generated and output to the DVD signal processing unit 14.
- the header information processing unit 7 separates the header information added at the time of recording from the output data of the DVD signal processing unit 14 during reproduction and outputs the header information to the compression / decompression processing unit 6. Further, the header information processing unit 7 notifies the system controller 10 of the separated header information.
- the system controller outputs the reproduction management information stored in the random access memory 22 to the DVD signal processing unit 14.
- the DVD signal processing unit 14 generates an error correction code from the output data of the header information processing unit 7 using the random access memory 15 during recording, and adds the error correction code to this output data. Further, it executes processes such as scrambling and 8Z15 modulation, and outputs a data sequence based on the processing result to the analog front end unit 17 as a serial data sequence.
- the system controller outputs the same contents to the DVD signal processing unit 14 and stores the same contents in the flash memory 16.
- the flash memory may be another storage medium as long as it is non-volatile.
- the DVD signal processing section 14 performs decoding processing, descrambling processing, and error correction processing on the output data of the analog front end section 17 in a manner opposite to the recording operation described above, and outputs the processing result to the header information processing section 7. Output. Further, the DVD signal processing unit 14 digitizes various kinds of drive information output from the system controller 10 for spindle control, tracking control, focus control, and thread control. These drive signals are generated by analog-to-digital conversion processing, and the generated drive signals are output to the motor drive control unit 18.
- the analog front end unit 17 generates and outputs a light amount control signal for the laser beam emitted from the optical head 19 to the optical disc 2.
- the analog front end unit 17 holds the light amount of the laser beam emitted from the optical head 19 to the optical disc 2 at a constant light amount for reproduction by the light amount control signal during reproduction, while the DVD signal is used for recording.
- the signal level of this light amount control signal is changed according to the output data from the processing unit 14, whereby the light amount of the laser beam is recorded from the reproduction light amount according to the output data from the DVD signal processing unit 14. Intermittently rises to the amount of light.
- the analog front end unit 17 amplifies the light reception result of the return light obtained from the optical head 19 and performs an arithmetic process, so that the signal level corresponding to the pit train formed on the optical disc 2 is adjusted.
- a reproduction signal that changes is generated, a predetermined process is performed on the reproduction signal, and reproduction data as a result of the binary identification is output to the DVD signal processing unit 14, and the tracking error amount and the focus error amount are calculated by the arithmetic processing. It generates a tracking error signal, a focus error signal, and the like, the signal levels of which change according to, and outputs these signals to the system controller 10 as digital signals.
- the motor drive control section 18 drives a mechanism corresponding to each of the various drive signals output from the DVD signal processing section 14.
- the motor drive control section 18 drives the spindle motor 20 by a drive signal for spindle control among these drive signals, and drives the thread motor 21 by a drive signal for thread control. Further, the actuator mounted on the optical head 19 is driven by the drive signal for tracking control and the drive signal for focus control.
- the spindle motor 20 chucks the optical disk 2 and drives it to rotate at a predetermined rotation speed.
- the threaded motor 21 moves the optical head 19 in the radial direction of the optical disk 2.
- the optical head 19 emits a laser beam from a built-in semiconductor laser in response to a light intensity control signal output from the analog front end unit 17, and records this laser beam through an objective lens to record information on the optical disc 2. Focus on the surface.
- This laser beam The return light obtained from the optical disk 2 by the irradiation of the beam is guided to a predetermined light receiving element via this objective lens, and the light receiving result of this light receiving element is output to the analog front end unit 17.
- the optical head 19 is moved by an actuator in which the objective lens is driven by a drive signal for tracking control and a drive signal for focus control, thereby performing tracking control and Z or focus control.
- the light amount of the laser beam is intermittently started by the light amount control signal, whereby the temperature of the information recording surface of the optical disk 2 is locally increased, and desired data is recorded.
- the system controller 100 is composed of a computer that controls the entire operation of the optical disk recording / reproducing apparatus 100.
- the system controller 100 executes a processing program pre-installed on the optical disk recording / reproducing apparatus 100, thereby operating the operation unit 110.
- the operation of each unit is controlled by a user's operation input obtained via the, and various signals detected by the analog front end unit 17. That is, the system controller 10 generates drive information for tracking control and drive information for focus control based on the tracking error signal and the focus error signal detected by the analog front end unit 17.
- the signal is converted into an analog signal by the DVD signal processing unit 14 and output to the motor drive control unit 18, thereby executing the tracking control process and the focus control process.
- the laser beam irradiation position is detected based on the header information and the like detected by the header information processing unit 7, drive information for thread control is generated from the detection result, and the drive information is output to the DVD signal processing unit 14. And so on. Similarly, the spindle control process is executed.
- FIG. 2 shows an outline of the D VD—Video format.
- FIG. 2 is a diagram showing an outline of a data structure of an optical disc on which data is recorded in a DVD-Video Format R ecording format, which is a logical format based on the DVD-Video format.
- a DVD-Video Format R ecording format which is a logical format based on the DVD-Video format.
- FIG. 2A which shows the information recorded on the spiral in the form of a strip
- the information recording surface of the optical disc that supports the DVD-Video format starts with the information from the innermost side, which is the top side.
- a lead-in area indicating the start of recording, a data zone (Data Zone), and an information lead-out area at the outermost periphery are allocated.
- Datazo The desired actual data is recorded in the data area.
- the data zone consists of a UDF (Universal Disk Format) area A1, which is a file system area in which the UDF bridge configuration is described, a VMG (Video Manager) area A2, which is a DVD management information area, from the lead-in area side. It is divided into VTS (Video Title Set) area A3 where real-time data is recorded.
- UDF Universal Disk Format
- VMG Video Manager
- VTS Video Title Set
- the UDF area A1 and the VMG area A2 are areas for recording information for managing video data recorded in the VTS area A3.
- Area 110 1 is called a first management information area
- area 0: 2 is called a second management information area.
- the VMG area A2, which is the second management information area is an area corresponding to a playback management system specific to the DVD-Video format, and plays back and manages the entire video data recorded in the VTS recording area A3. Information is recorded.
- the UDF area A1 which is the first management information area, is an area corresponding to a file management system using a PC or the like, and a UDF area or the like for ensuring compatibility with a file system on a PC or the like.
- the playback management information recorded in the VMG area A2 and the information for managing the entire video data recorded in the VTS recording area A3 are recorded.
- information for searching for the head of the VMG area A2 is also included in the UDF area A1.
- the VMG includes VMGI (Video Manager Information), VMGM—VOB (Video Object Set for Video Manager Menu), and VMGI—BUP for backup.
- VMGI Video Manager Information
- VMGM Video Object Set for Video Manager Menu
- VMGI BUP for backup.
- VMG I is the control information for the entire D VD video zone.
- VMGM VMG Menu Program Chain Information (VMC) with links to each VTS menu Check.
- VMGM_VOBS is video information for a title selection menu, and as shown in FIG. 2D, is composed of a plurality of CELs each corresponding to a title menu.
- VMG I—BUP is an exact copy of VMG I.
- VTS consists of VTS I (Video Title Set Information), VTSM_VOB S (Video Object Set for the VTS Menu), VTSTT—VOB S (Video Object Set for Titles in a VTS) and VTSI, as shown in Figure 2E.
- VTS I Video Title Set Information
- VTSM_VOB S Video Object Set for the VTS Menu
- VTSTT Video Object Set for Titles in a VTS
- VTSI VTSI
- the VTS I stores the control information of each VTS, and as shown in Fig. 2F, the VTS M—PGC I (VTS Menu Program) with a link to the delimiter in each VT SM—VOBS. Chain Information) group and VTSs — PGC I (VTS Program Chain Information) groups with links to the sections in each TT_VOBS.
- VTS M—PGC I VTS Menu Program
- VTSs — PGC I VTS Program Chain Information
- TSM—VOBS Video Object Set For Video Title Set Menu
- VTSM_VOBS is optional.
- VT S TT In the VOB S area, video data in the format of MPEG (Moving Picture Experts Group) 2 which is real data, that is, video data as actual content is formed by packetized data of a predetermined amount. It is stored as a set of multiple cells, as shown in Fig. 2G.
- MPEG Motion Picture Experts Group
- the VTS I_BUP area is an area where VTS I backup data is recorded.
- a desired file can be searched for and reproduced by the UDF area A1, and when reproduced by a DVD player, the UD
- the head of the VMG area is searched by the F area A1, and the desired title can be searched and reproduced by the information of the VMG area A2.
- DVD—R / D VD—RW, etc. can be recorded on a rewritable medium by a procedure that allows the above-mentioned structure to be constructed.
- the above-mentioned structure is recorded in such a way that it can be constructed, and finalization is performed at the end of the recording so that it completely matches the DVD-Video format.
- This recording method is called DVD—Video Format Recording.
- the optical disk recording / reproducing apparatus 100 shown here executes the processing procedure shown in FIG. In the following procedure, DVD-R is used as the optical disk 2.
- the system controller 10 determines the presence or absence of the optical disk 2 based on the detection result of the optical disk 2 detection mechanism (not shown) at step SP1. If a negative result is obtained here, the system controller 10 repeats step SP1. On the other hand, if the power is turned on while the optical disc 2 is loaded, and if the optical disc 2 is loaded after the power is turned on, a positive result is obtained in step SP 1 and the step Move from SP1 to step SP2. When the power is turned off in the repetition of step SP1, the system controller 10 directly proceeds to step SP3 and ends this processing procedure.
- step SP 2 the system controller 10 drives the thread motor 21 to move the optical head 19 to the innermost circumference of the optical disk 2, and outputs the reproduction result on the innermost side to the DVD signal.
- VMG data is obtained by obtaining from the processing unit 14. This is the case of the optical disk 2 that has been subjected to finalization processing. However, if the optical disk 2 has not been subjected to finalization processing yet, the RMA information is obtained because VMG data has not been generated. If it is determined from the RMA information that data has already been recorded in the VTS recording area A3 of the optical disk 2, the optical disk 2 is searched and the VTSI of each VTS and the temporary VMG I ( TMP_VMGI: Obtains Temporary Video Manager Information) and VTS M_VOBS data. Thus, the system controller 10 acquires management information of the optical disk 2 necessary for recording and reproduction of the optical disk 2 in the same manner as the optical disk device that records and reproduces a normal DVD.
- TMP_VMG I is a temporary VMG I that is recorded together with the VT SI at the end of recording of one VTS, and includes information on the number of VTSs recorded on the optical disc 2, the disc name, and 99 VTSs. It contains information such as physical layout and VTS name.
- This TMP—VMG I contains all the VTS recorded so far at the time of the TMP VMG I recording. The latest information is included. When multiple titles are recorded in DVD-R, 'multiple TMP-VMG I will be recorded in multiple locations, but the outermost TMP-VMG I will be the latest TMP- VMG I.
- the system controller 10 acquires UDF data in addition to VMG data. Also, in the reproduction of the VTS recording area A3, if the intermediate management information is recorded, this intermediate management information is also acquired. As a result, the system controller 10 can reproduce the extended file that is not defined in the DVD-Video format from the optical disk 2 and also acquires the management information of the extended file. Has been done. The system controller 10 records and retains a series of management information acquired in this manner in a built-in memory.
- step SP3 determines whether or not the user has instructed the ejection of the optical disk 2, and if a positive result is obtained here, the ejection of the optical disk 2 is not illustrated. After instructing the mechanism, return to step SP1.
- step SP3 when an instruction other than the ejection of the optical disk 2 is obtained from the user, the process proceeds from step SP3 to step SP4, and whether the operation by this user is an operation for instructing recording (indicated by REC), It is determined whether the operation is an instruction for reproducing (indicated by PB) or an instruction for turning off the power (indicated by Power OFF).
- the system controller 10 proceeds from step SP 4 to step SP 5 and executes a playback processing procedure for playing back the file recorded on the optical disc 2. Return to step SP3.
- step SP 6 executes a recording processing procedure for recording video data on the optical disc 2, and Return to 3. If the UDF and the VMG have been formed by the finalizing process so that the optical disc 2 cannot record data, the system controller 10 skips the recording process procedure and returns to step SP3.
- step SP4 executes power-down processing, and ends this processing procedure.
- the system controller 10 performs the recording process according to the procedure shown in the flowchart of FIG.
- the optical disc 2 is DVD-R
- a file of video data is recorded by the INC method.
- the system controller 10 first determines, in the first step SP11, whether the recording instruction by the user relates to image recording or finalization processing. I do.
- step SP12 determines whether or not the user has instructed to start recording. If a negative result is obtained here, the system controller 10 repeats step SP 12, whereas if a positive result is obtained, the system controller 10 shifts from step SP 12 to step SP 13 and executes VT ST T_VO by actual data. Record BS.
- step SP14 it is determined whether or not the user has instructed to stop recording. If a negative result is obtained here, the process returns to step SP13. As a result, the system controller 10 repeats the processing procedure of steps SP 13-SP 14-SP 13, sequentially records the actual data, and if a positive result is obtained in step SP 14, the actual data VTS Complete the recording of TT_VOBS.
- step SP 15 the system controller 10 moves to step SP 15 and sequentially forms VT SI—B UP, VTS I, and VT SM—VO BS, thereby recording one VTS and updating TMP—VMG I. Then, the recording processing procedure ends.
- step SP 11 determines whether or not the user has instructed to start recording. to decide. If a negative result is obtained here, the system controller 10 repeats step SP16, whereas if a positive result is obtained, the system controller 10 moves from step SP16 to step SP17 and executes the finalizing process. Then, this processing procedure ends.
- FIG. 5 shows a so-called blank disc in which the optical disc 2 does not record any files.
- FIG. 3 is a diagram for explaining a recording process of video data by the INC method, taking an example of a disk.
- each Rzone is managed by RMA.
- the system controller 10 reserves Rzone1 by updating the information of the RMA obtained from the optical disc 2 and held in the memory. Further, Rzone2 and Invisib1eRzone are reserved by updating the information of the RMA, and the video data as actual data is sequentially recorded in InvisibleRzone to generate VTSTT_VOBS.
- Rz0ne is reserved first as shown in FIG. 5A.
- the reserve of the R zone defines the area of the R zone 1 forming the UDF area A 1 and the VMG area A 2 which are areas for recording management information, and subsequently forms the VTS recording area A 3
- the area of R zone 2 where the first ⁇ 3, VTSM—VOBS, and temporary VMGI (TMP_VMGI: emporary Video Manager Information) are recorded, and leave the remaining unrecorded area. It is defined as the Invisible R zone area and executed.
- VTS TT_VOBS based on actual data is formed by recording moving images sequentially from the top of InvisiBleRzone. Further, when the actual data recording for one VTS is completed according to the instruction of the user, as shown in FIG. 5B, the VT SI-B UP is recorded following the actual data recording, as shown in FIG. 5B.
- VT SI and TMP—VMG I in R zone 2 and close R zone 2 as shown in C.
- the optional VTSM-V ⁇ BS is required, it is recorded in this area.
- management information is recorded in the memory so as to correspond to VTS I, VTSM_VOBS, and TMP_VMGI of the VTS, and the RMA information stored in the memory is updated.
- the first VTS # 1 is thus recorded on the optical disc.
- VTS # 2 when recording the next VTS # 2, in the INC system, the system controller 10 updates the information of the RMA similarly held in the memory, and as shown in FIG. Reserve R zone 3 in the unrecorded area of VTS I, VTS M—VOBS, and TMP—VMG Reserve an area and define the Invisible R zone.
- FIG. 5E VT S TT—V ⁇ BS is formed by recording the actual data, then VT SI—BUP is formed, and as shown in FIG. Record VT SI, VTSM—VOBS, and TMP—VMGI in the reserved area.
- VTS # 2 is recorded on the optical disc as shown in FIG. 5G.
- VTS when recording VTS continuously, VTS is recorded sequentially by defining an unrecorded area in the same manner.
- the system controller 10 sequentially records titles according to the INC method.
- an optical disk 2 that has not yet been finalized is loaded and a moving image is added to this optical disk 2, the data of the RM A acquired in step SP1 of FIG.
- the same processing is executed from the end of the already-recorded title according to the data of, and a moving image that is a shooting result is additionally recorded.
- the optical disc on which the VTS is sequentially recorded by the INC method and the VTS recording area A3 is formed, unless a format conversion such as a finalizing process is performed, a playback apparatus corresponding to the DVD-Video format. Etc. cannot be played.
- padding is performed so that the final recording position matches 70 mm from the inner circumference in order to finally conform to the DVD-Video format, and then the finalizing process is performed as shown in Fig. 5H.
- a UDF area A2 and a VMG area A3 are formed in R zone 1, a lead-in area is formed on the innermost circumference, and a lead-out area is formed on the outermost circumference.
- data to be recorded in the UDF area A1 and the VMG area A2 is generated from the data of the TMP_VMGI, and this data is stored in the R zone 1.
- Work to record and close R zone 1 is performed.
- the UDF and VMG of R zone 1 are generated based on the management information generated in this way and stored in the memory, and the lead-in and lead-out are generated. I do.
- the VTS already recorded on the optical disk 2 is used as the UD for these VTSs according to the TMP-VMGI obtained in step SP2 in FIG. It goes without saying that generating F and VMG data.
- the optical disc recording / reproducing apparatus 100 records a moving image file by DVD-Video Format Rec Ang d ing using the INC method.
- the finalizing process is divided into several processes, and each time one process is completed, this fact is stored in the flash memory 16 and before the start of each process.
- the remaining battery level is checked and it is determined whether or not the process that will be performed from now on will be terminated with the remaining battery level. If the process is not likely to be completed, all processes will be performed until the battery is replaced with a charged battery. Is prohibited, and when the battery is replaced with a battery with sufficient capacity, this is detected and finalization is restarted after the processing recorded in the flash memory 16.
- the rough processing procedure has steps S1 to S4 as shown in the flowchart of FIG.
- step S1 70 mm padding is performed.
- step S2 a UDF creation process is performed.
- step S3 VMG creation processing is performed.
- step S4 a lead-in / lead-out write process is performed.
- the fact that the finalization process has been started before the finalization process is stored in the flash memory 16 (step SO). Thus, when the power is turned on next time, it is possible to determine whether or not the finalizing process is being performed by referring to this value. At the end of the finalizing process, the fact that the finalizing process has been completed is always written back to the flash memory 16 (step S5).
- the fact that the process has been completed is stored in the flash memory 16 and the remaining capacity of the battery is confirmed. At this time, if the battery has enough capacity to perform the next process, proceed to the next step; otherwise, prompt the user to replace the battery and turn off the power.
- the contents of the flash memory 16 are checked to determine which of the above steps has been completed, and the finalization process is restarted from the next step.
- the 70 mm padding process is performed repeatedly, for example, by dividing into 1 ECC blocks until the final recording position exceeds 70 mm from the inner circumference. At this time, the fact that the processing of one ECC block is completed is stored in the flash memory 16 and the remaining capacity of the battery is checked. If the remaining capacity of the battery is below a certain level, finalization is interrupted at this stage.
- the 70 mm padding processing in step S1 is executed according to the procedure shown in the flowchart of FIG.
- step S10 when the 70 mm padding process in step S1 is instructed, first, it is determined whether 70 mm padding is necessary by referring to the information stored in the flash memory 16 (step S10). ).
- step S10 if the information indicating the necessity / non-necessity of the 70 mm padding process is not stored in the flash memory 16, whether or not 70 mm padding is necessary based on the recording end position is determined. Is determined (step S10A), and information indicating whether 70 mm padding processing is necessary or not is stored in the flash memory 16 (step S10B, S10C).
- step S 10 If the result of determination in step S 10 is that padding by 70 mm is required, control proceeds to step S 11. If the result of determination in step S10 indicates that the final recording position has reached 70 mm from the inner circumference of the disc and that 70 mm padding is not necessary, the processing ends without performing 70 mm padding processing. And
- step S11 it is determined whether 70 mm padding has started based on the information stored in the flash memory 16.
- step S11 If the decision result in the step S11 is NO, that is, if 70 mm padding has not been started, information indicating that the 70 mm padding has been started is stored in the flash memory 16 (step S12), and the flash memory The writing position on the memory 16 is initialized (step S13), and the process proceeds to step S15.
- step S11 determines whether or not 70 mm padding has been completed is determined based on the information stored in the flash memory 16. A judgment is made (step S14). If the determination result in step S14 is NO, that is, 70 mm padding has not been completed, the process proceeds to step S15. If the determination result is YES, that is, 70 mm padding has been completed, 70 mm padding has been completed. The process ends.
- step S15 it is determined whether the final recording position is within 70 mm from the inner circumference of the disk or not based on information stored in the flash memory 16.
- step S15 If the decision result in this step S15 is NO, that is, if the final recording position is within 70 mm from the inner circumference of the disk, it is determined whether or not the remaining capacity of the battery is a certain amount or more (step S15). 16) If the determination result is NO, that is, if the remaining battery charge is less than a certain amount, finalization is interrupted at this stage.
- step S16 If the result of determination in step S16 is YES, that is, if the remaining battery charge is equal to or more than a certain amount required for padding writing, padding writing is performed (step S17), and the writing position of the flash memory 16 is set. After updating (step S18), the process returns to the determination process of step S15, and padding write is repeated until the final recording position exceeds 70 mm from the inner circumference.
- Step S15 If the result of the determination in step S15 is YES, that is, if the final recording position has reached 70 mm from the inner periphery of the disk, information indicating that 70 mm padding has been completed is stored in the flash memory 16. (Step S 19), Step S 1 70 mm padding process ends.
- step S2 Since the UDF creation processing in step S2 described above cannot be divided, it is performed at once as shown in the flowchart of FIG.
- step S21 it is determined whether or not the UDF creation has been completed based on the information stored in the flash memory 16 (step S21). If the creation of the UDF has been completed, the processing ends.
- step S21 If the decision result in the step S21 is NO, that is, if it is necessary to create a UDF, before writing the UDF, it is determined whether or not the remaining capacity of the battery is equal to or more than a predetermined amount necessary for writing the UDF. Is determined (step S22).
- step S22 If the decision result in the step S22 is NO, that is, if the remaining capacity of the battery is not enough to write the UDF, the finalization is interrupted at this stage. If the determination result in step S22 is YES, that is, the remaining battery capacity is sufficient to write the UDF, a UDF is created (step S23), and information indicating that the creation of the UDF has been completed. Is stored in the flash memory 16 (step S24), and the UDF creation processing in step S2 described above ends.
- the VMG creation process in step S3 includes a VMGI I creation and write process (step S31), a VMGM-VOBS creation and write process (step S3). 32) and write processing of VMG I-BUP (step S33).
- the remaining capacity of the battery is checked before each process is executed, and if the remaining capacity is not sufficient by the end of the process, the finalization is stopped at that stage. If the capacity is sufficient, the processing is executed, and the fact is stored in the flash memory 16.
- step S31 In the VMGI creation and writing process (step S31), first, it is determined whether the creation of the VMGI has been completed based on the information stored in the flash memory 16 (step S31). 3 1A) If the judgment result is NO, that is, if it is necessary to create VMGI, check whether the remaining capacity of the battery is equal to or more than the predetermined amount necessary for writing VMGI before writing VMGI. Is determined (step S31B). If the determination result in step S31B is NO, that is, if the remaining battery charge is not enough to write the VMGI, the finalizing process is interrupted at this stage.
- step S31B determines whether the remaining battery capacity is sufficient to write VMGI. If the determination result in step S31B is YES, that is, if the remaining battery capacity is sufficient to write VMGI, VMGI is created (step S31C), and the creation of VMGI is completed.
- the information indicating that the operation has been performed is stored in the flash memory 16 (step S31D), and the process proceeds to VMGM_VOBS creation and write processing (step S32).
- step S31A determines whether the writing of VMGI has been completed. If the determination result of step S31A is YES, that is, the writing of VMGI has been completed, the process proceeds to VMGM-VOBS creating and writing process (step S32).
- step S32 In the process of creating and writing the VMGM—VOBS (step S32), first, it is determined whether or not the creation of the VMGM_VOBS has been completed based on the information stored in the flash memory 16 (step S32). 32A) If the result of the determination is NO, that is, if it is necessary to create VMGM_VOBS, the remaining capacity of the battery must be equal to or greater than the predetermined amount required for writing VMGM-VOBS before writing VMGM_VOBS. It is determined whether or not there is (step S32B).
- step S32B If the decision result in the step S32B is NO, that is, if the remaining capacity of the battery is not enough to perform the writing of the VMGM-VOBS, the finalizing process is interrupted at this stage.
- step S32B If the result of the determination in step S32B is YES, that is, if the remaining battery capacity is sufficient to write VMGM-VOBS, the Nth VMGM-VOBS menu screen is created and written to the Nth sheet (Step S32C), the information indicating that the creation of the Nth VMG M—VOBS menu screen has been completed is stored in the flash memory 16 (Step S32D), and the last menu is created. It is determined whether or not has been completed (step S32E).
- step S32E determines whether there is a VMGM_VOBS menu screen to be created. If the determination result in step S32E is NO, that is, if there is a VMGM_VOBS menu screen to be created, the process returns to step S32B, and the remaining battery capacity is written to the next VMGMVOBS. The next VMG if there is enough to do The process of creating and recording the menu screen for the M_VO BS is repeated, and the determination result of step S32E is YES, that is, when the creation of the last menu is completed, the writing process of the VMG I—BUP (step S33) Proceed to).
- step S33 first, it is determined whether the writing of the VMG I-BUP has been completed based on the information stored in the flash memory 16 (step S33). 33 A) If the result of the determination is YES, that is, the writing of VMGM-V ⁇ BS has been completed, the processing ends.
- step S33A determines whether there is the above (step S33B).
- step S33B determines whether the remaining battery charge is not enough to write the VMGI_BUP. If the determination result in step S33B is NO, that is, if the remaining battery charge is not enough to write the VMGI_BUP, the finalizing process is interrupted at this stage.
- step S 33 B If the judgment result in step S 33 B is YE S, that is, if the remaining capacity of the battery is sufficient to write the VMG I — BUP, create and write the VMG I — BUP (step S 33 C) Then, information indicating that the writing of the VMG I-BU has been completed is stored in the flash memory 16 (step S33D), and the above-described VMG creation processing in step S3 ends.
- step S41 it is determined whether or not the lead-in / lead-out writing has been completed based on the information stored in the flash memory 16 (step S41). If the result of the determination is NO, that is, if the writing of Lead In / Lead Out has been completed, the processing is terminated as it is.
- step S41 determines whether there is a predetermined amount or more necessary for writing (step S42). If the decision result in the step S42 is NO, that is, if the remaining capacity of the battery is not enough to write the UDF, finalization is interrupted at this stage.
- step S42 determines whether the lead In / Lead Out has been completed.
- the determination result in step S42 is YES, that is, when the remaining battery capacity is sufficient to write the Lead In / Lead Out
- the Lead In / Lead Out is written (step S43), and the Lead
- the information indicating that the writing of In / Lead Out has been completed is stored in the flash memory 16 (step S43), and the above-described processing of writing the Lead In / Lead Out in step S4 is completed.
- FIG. 11 is a flowchart showing a procedure of a reproducing process in the optical disc recording / reproducing apparatus 100 for recording video data on the optical disc 2 as described above.
- the system controller 10 determines whether the user has instructed to start playback. If a negative result is obtained here, the system controller 10 repeats step SP31, whereas if a positive result is obtained, the system controller 10 proceeds from step SP31 to step SP32.
- the system controller 10 controls the entire operation based on the management information recorded and held in the flash memory 16 so as to reproduce the image file designated by the user.
- the playback position of the corresponding title is detected based on the VMG data stored in the flash memory 16, and playback from this playback position is instructed to each unit of the optical disc recording / reproducing apparatus 100. I do.
- the playback position of the corresponding title is determined by the TMP—VMGI stored in the flash memory 16 and the VT SI and VT S TT—VOBS of each title. Is detected, and the reproduction from this reproduction position is instructed to each section of the optical disc recording / reproducing apparatus 100.
- step SP33 determines whether or not the user has instructed to stop the reproduction, and if a negative result is obtained here, returns to step SP32. .
- the system controller 10 repeats the processing steps of steps SP32-SP33-SP32 and sequentially reproduces the moving image file specified by the user.
- step SP33 the reproduction operation is terminated, and the reproduction processing procedure is terminated.
- video data is recorded on DVD-R in the INC format.
- video data may be recorded on DVD-RW in the ROW format.
- Fig. 12 shows the procedure for recording DVD-VideFormatRecording by the ROW method.
- a lead-in, a UDF area, a VMG area, a VTSI of the first VTS and a recording area of the VTSM-VOBS are secured in advance by padding (Pad ding).
- padding refers to processing for recording dummy data such as NULL and securing an area.
- VT S TT—VOBS is formed by real data, and 1
- the VT SI—BUP is recorded, and the padding process is performed to secure the recording area for the VT SI and VT SM—VOBS of the subsequent VTS. Be executed.
- VT SI and VTSM-VOBS corresponding to the recording of the actual data are formed as shown in FIG. 12C.
- TMP—VMGI is recorded between the UDF area and the VMG area.
- the first title (VTS # 1) is completed. In this way, in the ROW method, one VTS # 1 is recorded on the optical disc.
- the actual data is recorded following the padding area formed by the immediately preceding VTS, so that VTS_TT_VOBS And VT SI—BUP are formed, and padding processing is executed to secure a recording area for VT SI and VTS M_VOBS of the subsequent VTS.
- FIG. 12E ⁇ 31 and ⁇ 31 ⁇ [— VOBS are formed, and TMP—VMGI between the UDF area and the VMG area is overwritten. .
- the second title (VTS # 2) is complete.
- the subsequent VTS # 2 is recorded on the optical disc as shown in FIG. 12F.
- the ROW method when VTS is continuously recorded, similarly, processing such as padding is executed, and VTS is sequentially recorded.
- the optical disk on which the VTS is sequentially recorded in the ROW method and the VTS recording area A3 is formed is formatted by the same finalization processing as the INC method described with reference to FIGS. 6 to 10. By doing this, it is possible to play back on a playback device or the like that supports only DVD-Video format.
- UDF and VMG areas are created by creating UDF and VMG from the information and recorded in the padded UDF area and VMG area first, and the lead-in information is recorded by recording the lead-in information on the innermost circumference.
- An In (Lead In) area is formed, and a Lead Out area is formed by recording lead-out information on the outermost periphery.
- This finalized optical disk can ensure compatibility with the DVD-Video format used in the read-only optical disk DVD-ROM.
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- Engineering & Computer Science (AREA)
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- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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AU2003284576A AU2003284576A1 (en) | 2002-12-27 | 2003-11-19 | Optical recording method and optical recording device |
CN2003801003312A CN1692436B (zh) | 2002-12-27 | 2003-11-19 | 光记录方法及光记录装置 |
EP03774058A EP1577891A4 (en) | 2002-12-27 | 2003-11-19 | OPTICAL RECORDING METHOD AND DEVICE |
US10/505,797 US7333411B2 (en) | 2002-12-27 | 2003-11-19 | Optical recording method and optical recording device |
CA2477522A CA2477522C (en) | 2002-12-27 | 2003-11-19 | Optical recording method and optical recording device |
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JP2002382283A JP4063076B2 (ja) | 2002-12-27 | 2002-12-27 | 光記録方法及び光記録装置 |
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US7355934B2 (en) | 2003-01-27 | 2008-04-08 | Lg Electronics Inc. | Optical disc of write once type, method, and apparatus for managing defect information on the optical disc |
KR101024923B1 (ko) | 2003-05-09 | 2011-03-31 | 엘지전자 주식회사 | 1회 기록가능한 광디스크 및 1회 기록가능한 광디스크에있어서의 관리정보 기록방법 및 장치 |
ES2325441T3 (es) * | 2003-07-14 | 2009-09-04 | Lg Electronics Inc. | Disco optico grabable una sola vez, metodo y aparato para grabar informacion de gestion en un disco optico grabable una sola vez. |
KR20050009031A (ko) | 2003-07-15 | 2005-01-24 | 엘지전자 주식회사 | 1회 기록 가능한 광디스크 및 광디스크의 관리정보 기록방법 |
AU2004271477B2 (en) | 2003-09-08 | 2009-11-05 | Lg Electronics Inc. | Write-once optical disc and method for recording management information thereon |
KR100530361B1 (ko) * | 2004-01-29 | 2005-11-22 | 삼성전자주식회사 | 정전시 기록정보 백업 가능한 광 기록/재생 장치 및기록정보 백업 방법 |
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US7680397B2 (en) | 2004-09-27 | 2010-03-16 | Victor Company Of Japan, Ltd. | Method and apparatus for recording data on a recording disc, and method and apparatus for restoring data recorded on a recording disc |
JP2007157297A (ja) | 2005-12-08 | 2007-06-21 | Nec Corp | 記録型光ディスク装置および光ディスク媒体 |
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Also Published As
Publication number | Publication date |
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CA2477522A1 (en) | 2004-07-22 |
EP1577891A1 (en) | 2005-09-21 |
US20050157619A1 (en) | 2005-07-21 |
CN1692436B (zh) | 2011-01-19 |
KR20050088923A (ko) | 2005-09-07 |
EP1577891A4 (en) | 2010-11-10 |
KR100994329B1 (ko) | 2010-11-12 |
CA2477522C (en) | 2013-01-22 |
AU2003284576A1 (en) | 2004-07-29 |
US7333411B2 (en) | 2008-02-19 |
JP4063076B2 (ja) | 2008-03-19 |
CN1692436A (zh) | 2005-11-02 |
JP2004213769A (ja) | 2004-07-29 |
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