JP2003331430A - Optical disk recorder and dvd-r recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk recorder and a DVD-R recorder, to which data can be buried into a surplus memory area without preliminarily preparing redundant data on the memory. <P>SOLUTION: When the finalizing process is instructed and user data are not attained to a sector corresponding to the outside diameter of 70 mm, the data area RZone 1 is secured (ST23) without recording the data with respect to the DVD-R disk, next, the data unrecorded areas (whole areas of RZone 1) in the RZone 1 are made to the recorded state (ST24). This operation is repeated till the RZone is recorded on whole surplus areas 110 in data areas 105, and when the outside diameter of the data area 105 attain the sector corresponding to 70 mm by the user's data and dummy data, a DVD-R disk is (after recording the read-in/read-out area) made to the reproducible state, then the finalizing process is finished. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk recording apparatus and a DVD-R recording apparatus capable of recording data on a write-once type DVD disk which can be recorded only once.

[0002]

2. Description of the Related Art In recent years, DVDs (Digital Ver
2. Description of the Related Art With the spread of "Satele Disk" and the like, research and development of a recording device for recording video data on a disc have been actively promoted.

In such a recording apparatus, for the convenience of data reading and efficient data management, when the write data ends in the middle of the minimum unit (eg, sector) of data of a predetermined size, it ends. The dummy data is recorded up to the end of the sector.

For example, as such a conventional technique, Japanese Unexamined Patent Publication No. 9-330178 discloses that, when a surplus occurs in a minimum unit of data of a predetermined size during data recording, redundant data is added to the surplus. There has been disclosed a data recording / reproducing apparatus for adding a.

[0005]

However, in the conventional apparatus, in order to fill the redundant data in the surplus area, the redundant data is recorded in the memory in advance, and the redundant data recorded in the memory in advance is recorded. Data was transferred and recorded in the surplus area. Therefore, there is a problem that a memory capacity for redundant data is required.

The present invention has been made in view of the above points, and an optical disk recording apparatus and a DVD-R recording device capable of embedding redundant data in a surplus area without preparing redundant data in a memory in advance. The purpose is to provide a device.

[0007]

In order to achieve the above object, the optical disk recording apparatus of the present invention is capable of recording the recording information on an optical disk in which the recording information can be recorded only once by a predetermined recording format and can be additionally recorded. In an optical disc recording apparatus for recording, a determination unit that determines whether user data has reached a predetermined position on the optical disc, and a determination unit that determines that the user data has not reached the predetermined position,
A securing means for securing an unrecorded data area of a predetermined size for an unrecorded area arranged between the recorded data and the predetermined position, and a securing means for securing the data unrecorded portion. And a recording unit which makes the recorded data area in the unrecorded state into a reproducible state by making the data area equivalent to that in which redundant data is recorded.

In order to achieve the above object, the DV of the present invention
The D-R recording device is a DVD-R recording device for recording record information on a DVD-R disc capable of recording record information only once and additionally recordable in a predetermined recording format. When the finalizing process is instructed by the instructing means for instructing the finalizing process for making the
The determination means for determining whether the user data recorded on the DVD-R disc has reached a predetermined position of the DVD-R disc, and the determination means for determining that the user data has not reached the predetermined position. With respect to the unrecorded area until reaching the position, a securing means for securing an unrecorded data area of a predetermined size and an unrecorded data area secured in the data unrecorded portion by this securing means are redundant. And a recording unit that makes the data reproducible by making the data equivalent to the recorded data.

In order to achieve the above object, the DV of the present invention
The D-R recording device is a DVD-R recording device that records the record information on a DVD-R disc that can record the record information only once in a predetermined recording format and is additionally recordable. A first reserving means for reserving a data area in a recorded state, and recording data in the unrecorded data area secured by the reserving means, and a portion in the unrecorded state remaining in the secured data area. , A first recording means for making a state equivalent to that of recording redundant data, an instructing means for instructing a finalizing process for making the DVD-R disc in a reproducible state, and this instructing means When the finalizing process is instructed, the user data recorded on the DVD-R disc has reached a predetermined position on the DVD-R disc. And a determination unit that determines that the predetermined position has not been reached, and secures an unrecorded data area of a predetermined size with respect to the unrecorded area until the predetermined position is reached. A second reserving means and a reproducible state by making the unrecorded data area secured in the data unrecorded portion by the reserving means equivalent to the state in which redundant data is recorded. And a recording means of.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing an example of a disc recording / reproducing apparatus according to the first embodiment of the present invention. In the disc recording / reproducing apparatus A shown in FIG. 1, the operation of the entire apparatus is controlled by the memory MPU 10. The memory MPU 10 is connected to the flash ROM 11 and the work memory 12 via a data bus.

Then, as a configuration mainly for recording the video information on the hard disk HD and the optical disk OD,
The input terminal (line-in) and the tuner 20 are connected to the line selector 21. The signal output from the line selector 21 is input to the audio AD converter 22 and the 3YCDNR 24.

The tuner 20 is connected to a timer MPU 40, and its operation is controlled by the timer MPU 40. The timer MPU 40 is also connected to the display MPU 50, and controls the operation of the display MPU 50 and the display 51 connected to the display MPU 50.

The audio signal output from the audio AD converter 22 is input to the audio encoder 28. The audio encoder 28 encodes the input audio signal, and the MPEG2 encoder 2
Output to 9.

The 3YCDNR 24 is connected to the EDO 25, and the video signal output from the 3YCDNR 24 is input to the video decoder 23. The video signal output from the video decoder 23 is supplied to the frame synchronizer 26 connected to the SDRAM 27, and M
It is input to the PEG2 encoder 29.

The MPEG2 encoder 29 is an SDRAM
It is connected to 30, and receives the audio signal from the audio encoder 28 and the video signal from the frame synchronizer 26, and encodes the MPEG signal.
The MPEG signal generated by the MPEG2 encoder 29 is output to the ATAPI controller 60 via the bridge circuit 61.

The ATAPI controller 60 is SDRA
The M62 is connected and outputs the MPEG signal supplied from the bridge circuit 61 to the disk drive 71 via the copy protect 63 or to the disk drive 72 via the CPRM 64.

The disk drive 71 records an MPEG signal on the hard disk HD and reads an MPEG signal recorded on the hard disk HD. The disk drive 72 records an MPEG signal on the optical disk OD and reads an MPEG signal recorded on the optical disk.

The MPEG signal read from the disc is input to the MPEG decoder 31 via the ATAPI controller 60. The MPEG decoder 31 uses S
It is connected to the DRAM 32, decodes the MPEG signal, and outputs it to the audio DA converter 33 and the graphic circuit 35.

The audio DA converter 33 is an MPE.
The audio signal included in the G signal is DA converted and output. The graphic circuit 35 is connected to the SDRAM 36 and outputs a graphic signal to the video decoder 34. The video decoder 34 decodes the received graphic signal and outputs it.

FIG. 2 is a flow chart showing a flow of a series of processes for a once writable (Write Once) DVD disc (for example, a DVD-R disc) in the disc drive 72 of the disc recording / reproducing apparatus A. It is a figure.

As shown in FIG. 2, the disk drive 72
When a DVD-R disc on which nothing is recorded is set, the disc recording / reproducing apparatus A first executes initialization of the DVD-R disc, and thereby the DVD which will be described later.
-A write mode setting process for the R disc is executed (ST1). Then, when the write mode is set, the write process is executed according to the set write mode (ST2).

After the data is recorded on the DVD-R disc, the user judges that the data is not recorded on the DVD-R disc anymore (makes it read-only) and makes the DVD-R disc read-only. When the finalizing process is instructed, the disc recording / reproducing apparatus A executes the finalizing process on the DVD-R disc on which the data is recorded (ST3).

When the finalizing process of ST3 is performed, the DVD-R disc can be reproduced, but new data cannot be recorded.

Then, the finalized D
When the VD-R disc is set in the disc drive 72, the disc recording / reproducing apparatus A can thereafter reproduce the data recorded on the DVD-R disc (ST4).

FIG. 3 is a flow chart for explaining the setting process of the write mode at the time of initialization for the DVD-R disc in the disc drive 72 of the disc recording / reproducing apparatus A.

In this embodiment, the DV which can be written only once is used.
Disc at once recording is used as a writing mode for a D disc (DVD-R disc).
mode (hereinafter referred to as “Write-at-once” mode) and Incremental record
ing mode (hereinafter, “Incremental”)
Two types of modes (referred to as modes) can be set.

The "write-at-once" mode is a mode in which only one writing sequence can be executed for one DVD disc and no additional data can be written thereafter. The “Incremental” mode is a mode in which additional recording is possible.

In this embodiment, "Incrementa" is used.
Since it is effective for the DVD-R disc set in the "l" mode, the flow of setting in the "Incremental" mode will be described.

First, a DVD-R is loaded in the disk drive 72.
When the disc is set, the main MPU 10 determines the writing mode of the DVD-R disc to be the "Incremental" mode based on the instruction from the user and the initial setting (ST11), and selects the mode to instruct the "Incremental" mode. The command is output to the ATAPI controller 60.

The ATAPI controller 60, based on the received mode selection command, drives the disk drive 72.
The writing mode for DVD-R discs in
The "cremental" mode is set, and the write processing is started (ST12).

Next, the structure of the recording area in the DVD-R disc will be described with reference to FIG. FIG. 4 shows D
It is a conceptual diagram showing an arrangement of recording areas in the radial direction of a VD disc. In the present embodiment, a single-layer DVD
An explanation will be given using an R disk.

The DVD-R disc has an output calibration area (Power Cali) in order from the inner circumference to the outer circumference.
blation Area) 101, recording management area (R
(ecoording Management Area)
A recording information area (R-Information)
on area) 100 is arranged.

Further, by recording the data on the DVD-R disc as described above, the lead-in area 10 is further recorded.
4, an information area (Information area) 10 including a data area 105 and a lead-out area 106.
3 will be arranged.

The data area 105 is an area in which data is recorded. The lead-in area 104 is the data area 10
It is provided adjacent to the inside of 5. The lead-out area 106 is provided adjacent to the outside of the data area 105.

Predetermined data is recorded in the lead-in area 104 and the lead-out area 106 at the time of the finalizing process, so that the data recorded in the data area 105 can be reproduced.

The output calibration area 101 is a data area 105.
This is an area for trial recording before recording data on. The recording management area 102 is the recording data RZ to be additionally recorded in the data area 105 or the recording data RZ that the user wants to distinguish.
The address of one is recorded.

Conditions relating to the information area 103 in the reproducible DVD disc defined in the DVD standard for the replay-only disc will be described with reference to FIGS. That is,
A DVD-R disc that can be played back by the finalizing process must satisfy this condition.

As shown in FIG. 5, in order to be recognized as a reproducing disc by the reproducing apparatus, when the outer diameter (diameter) of the data area 105 is 68 mm or less in the DVD disc, the outer diameter (diameter) of the information area 103 is set. Must be 70 mm.

When the outer diameter (diameter) of the data area 105 is 68 to 115 mm in the DVD disc, the outer diameter of the information area 103 is equal to the outer diameter of the data area 105+
The minimum is 2 mm. Further, in the DVD disc, when the outer shape (diameter) of the data area 105 is 115 to 116 mm, the outer diameter of the information area 103 is set to 117 mm.

Therefore, when finalizing the DVD-R disc, the DVD-R disc has an outer diameter of 68 to 1
When the data area 105 of up to 16 mm is provided, as shown in FIG. 6, predetermined data is recorded in the lead-in area 104 inside the data area 105.

The data area 10 in which the data is recorded
A lead-out area 106 is created in the adjacent portion outside the area 5, and predetermined data is recorded in the created lead-out area 106 so that the lead-out area 106 can be reproduced.

Further, when the DVD-R disc has a data area 105 having an outer diameter of 68 mm or less when the DVD-R disc is finalized, as shown in FIG. Data is recorded up to a disc outer diameter of 68 mm by adding (recording) dummy data to the unrecorded area after the data area 105 by a method described later.

Then, when the disc outer diameter becomes 68 mm and the recording area becomes the data area 105, predetermined data is recorded in the lead-in area 104 secured inside the data area 105, and the data area 105 is adjacent to the outside of the data area 105. A lead-out area 106 is created in the formed area, and predetermined data is recorded in the created lead-out area 106 to reach a disk outer diameter of 70 mm,
The DVD-R disc is in a reproducible state.

As shown in FIGS. 6 to 7, the user data is managed as an RZone for each of the added data and the data that the user wants to distinguish. This RZon
The address of e itself is recorded in the recording management area 102.

8 to 9 are flow charts for explaining the finalizing process of the DVD-R disc.

When the user directs the finalizing process, the main MPU 10 of the disc recording / reproducing apparatus A.
Determines whether the user data in the data area 105 has reached the sector position corresponding to the outer diameter of 70 mm via the ATAPI controller 60 (ST21).

If it is determined in ST21 that the user data has reached the sector corresponding to the outer diameter of 70 mm, the outer diameter of the data area 105 is reduced by recording the user data as shown in FIG. Since it exceeds 68 mm,
The main MPU 10 outputs to the ATAPI controller 60 a close border command indicating an instruction to put the DVD-R disc in a reproducible state.

Based on the received close border command, the ATAPI controller 60 records predetermined data in the lead-in area 104 secured inside the data area 105 for the DVD-R disk in the disk drive 72, A lead-out area 106 is created in an adjacent portion outside the data area 105, and predetermined data is recorded in the created lead-out area 106, thereby making the DVD-R disc reproducible. ST22).

As a result of the determination in ST21, when it is determined that the user data has not reached the sector corresponding to the outer diameter of 70 mm, as shown in FIG. Since the outer diameter does not exceed 68 mm and there is an extra area 110, the main MPU1
0 outputs a reserve RZone command for instructing the ATAPI controller 60 to secure a data area RZone of a predetermined size.

The ATAPI controller 60, based on the received reserve RZone command, as shown in FIG.
Unrecorded data area RZone for the disc
1 is secured (ST23).

Next, the main MPU 10 causes the ATAPI controller 60 to enter a command close RZone in a state equivalent to recording redundant data (for example, continuous "0") in the data unrecorded area in the data area RZone. Output the command.

Based on the received close RZone command, the ATAPI controller 60 causes the DVD-R in the disc drive 72 as shown in FIG. 9C.
Redundant data (for example, continuous "0") is recorded in the data blank area (in this case, the entire area of RZone1) in the RZone1 of the disc, and the RZone1 is set to the data recording state (ST24). In addition, BSGA (B
lock SYNQ Guard Area) is recorded.

Then, in ST24, the data area 105
The progressive bar indicating the progress status displayed on the display 51 is updated (ST25) by an amount corresponding to the decrease of the extra area 110 in the inside (ST25), and the process proceeds to ST21. In this way, ST2 is set until the data-recorded RZone n is recorded in all the extra areas 110 in the data area 105.
1, ST23 to ST25 are repeated.

That is, in ST21, similarly, the main MPU 10 receives the ATAPI controller 60,
It is determined whether the user data in the data area 105 has reached a sector corresponding to an outer diameter of 70 mm (ST2
1).

As a result of the determination in ST21, when it is determined that the user data has not reached the sector corresponding to the outer diameter of 70 mm, as shown in FIG. 9C, the user data is recorded to the data area 105. Since the outer diameter does not exceed 68 mm and there is an extra area 110, the main MPU1
0 is a reserve RZon that instructs the ATAPI controller 60 to secure an RZone of a predetermined size.
Output the e command.

The ATAPI controller 60, based on the received reserve RZone command, as shown in FIG.
Data area RZ in which no data is recorded on the disc
One2 is secured (ST23).

Next, the main MPU 10 outputs to the ATAPI controller 60 a close RZone command for making a state equivalent to that redundant data is recorded in the data unrecorded area in the data area RZone.

Based on the received close RZone command, the ATAPI controller 60 causes the DVD-R in the disc drive 72 as shown in FIG. 9 (e).
Redundant data (for example, continuous "0" is recorded) in the data unrecorded area in the RZone2 of the disc (in this case, the entire area of the RZone2) and the RZone2 is set to the data recorded state (ST24).

Then, in ST24, the data area 105
The progressive bar displayed on the display 51 is updated by the amount of decrease in the extra area 110 (S).
T25), and proceed to ST21.

In this way, as shown in FIG. 9 (f), all the extra areas 110 in the data area 105 are recorded with RZone 1, RZone 2, ...
When filled with RZone n, the outer diameter of the data area 105 is 70 m depending on the user data and the dummy data.
It is determined that the sector corresponding to m is reached (ST21),
The main MPU 10 outputs to the ATAPI controller 60 a close border command indicating an instruction to put the DVD-R disc in a reproducible state.

Based on the received close border command, the ATAPI controller 60 records predetermined data in the lead-in area 104 secured inside the data area 105 for the DVD-R disk in the disk drive 72, A lead-out area 106 is created in an adjacent portion outside the data area 105, and predetermined data is recorded in the created lead-out area 106, thereby making the DVD-R disc in a reproducible state (ST22. ), And the finalization process ends.

As described above, in the present embodiment,
DVD that can be written only once and set to write-once mode
In a finalizing process for making a disc (for example, a DVD-R disc) playable, user data is stored at a predetermined position on the disc (outer diameter 70 for a DVD-R disc).
(mm) is not reached, a data area RZone that is managed as data that was originally added or data that the user wants to distinguish is secured in the unrecorded state with respect to the extra unrecorded area 110 until reaching the predetermined position. ,continue,
By executing the process of embedding the redundant data in the unrecorded area of the data area RZone, the redundant area 110
All are in a recording state, and user data has reached a predetermined position on the disc (70 mm outer diameter in a DVD-R disc) and is in a reproducible state.

Therefore, it is possible to embed data in the surplus memory area without preparing beforehand redundant data such as dummy data used for putting the extra area in the recording state in the memory. .

[0064]

As described above, according to the present invention,
The surplus data area can be brought into a recorded state without preparing redundant data in the memory in advance.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a disc recording / reproducing apparatus according to a first embodiment of the present invention.

FIG. 2 is a disc drive 7 of the disc recording / reproducing apparatus A.
2 is a flowchart showing a flow of a series of processes for a DVD-R disc in FIG.

FIG. 3 is a disc drive 7 of the disc recording / reproducing apparatus A.
2 is a flow chart for explaining a writing mode setting process at the time of initialization for the DVD-R disc in FIG.

FIG. 4 is a conceptual diagram showing the arrangement of recording areas in the radial direction of a DVD disc.

FIG. 5 is a diagram for explaining conditions regarding an information area 103 in a reproducible DVD disc defined in the DVD standard for a replay-only disc.

FIG. 6 is a diagram illustrating finalizing processing of a DVD-R disc.

FIG. 7 is a diagram illustrating finalizing processing of a DVD-R disc.

FIG. 8 is a diagram illustrating finalizing processing of a DVD-R disc.

FIG. 9 is a diagram illustrating finalizing processing of a DVD-R disc.

[Explanation of symbols]

A disk recording / playback device 10 memory MPU 11 Flash ROM 12 work memory 20 tuner 21 line selector 22 Audio AD converter 23 Video Decoder 24 3YCDNR 25 EDO 26 frame synchronizer 28 audio encoders 29 MPEG2 encoder 40 timer MPU 50 display MPU 51 display 60 ATAPI controller 61 bridge circuit 64 CPRM 71,72 disk drive 100 recorded information area 101 Output calibration area 102 recording management area 103 Information area 104 Lead-in area 105 data area 106 Lead-out area 110 extra space

Continued front page    F-term (reference) 5D044 BC05 CC04 DE23 DE37 DE48                       DE54 EF05                 5D090 AA01 BB03 CC01 CC12 FF26                       GG29 HH01                 5D110 AA14 DA06 DA11 DA18 DB02                       DB13 DC15

Claims (4)

[Claims] 1. An optical disk recording apparatus for recording recording information on an optical disk capable of recording recording information only once and in a predetermined recording format, and whether user data reaches a predetermined position of the optical disk. When the determination unit determines that the predetermined position has not been reached, the determination unit determines that the unrecorded area between the recorded data and the predetermined position has a predetermined size. Reproduction is possible by securing the unrecorded data area and the unrecorded data area secured by the securing means in the data unrecorded portion in the same state as that in which redundant data is recorded. An optical disk recording apparatus, comprising: 2. A DVD-R recording apparatus capable of recording record information on a DVD-R disc capable of recording the record information only once by a predetermined recording format, and reproducing the DVD-R disc. When the finalizing process is instructed by the instructing means for instructing the finalizing process to make it possible, the user data recorded on the DVD-R disc reaches a predetermined position of the DVD-R disc. And a determination unit that determines whether the predetermined position has not been reached, and secures an unrecorded data area of a predetermined size for the unrecorded area until the predetermined position is reached. And the data area in the unrecorded state secured in the data unrecorded portion by this securing means as redundant data. DVD-R recording apparatus characterized by having a recording means for the reproducible state by the same condition where recorded. 3. The outer diameter of the user data recorded on the DVD-R disc is 68 mm when the finalizing processing is instructed by the instructing means.
3. The DVD-R recording device according to claim 2, wherein it is determined whether or not the position corresponding to is reached. 4. A DVD-R recording apparatus for recording record information on a DVD-R disc capable of recording record information only once by a predetermined recording format and additionally recordable, in an unrecorded state having a predetermined size. First securing means for securing the data area of the above, and data is recorded in the unrecorded state data area secured by the securing means, and for the unrecorded state portion remaining in the secured data area. First, a first recording means for making a state equivalent to that of redundant data recorded, an instruction means for instructing a finalizing process for making the DVD-R disc in a reproducible state, and a finalizing process by the instructing means. Is instructed, does the user data recorded on the DVD-R disc reach a predetermined position of the DVD-R disc? Determining means for determining, and, when the determining means determines that the predetermined position has not been reached, secures an unrecorded data area of a predetermined size for the unrecorded area until reaching the predetermined position. Second securing means and a reproducible state by making the unrecorded data area secured in the data unrecorded portion by this securing means equivalent to the state in which redundant data is recorded.
And a recording means for storing the DVD-R recording device.