JP2003257026A - Optical information recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical information recording medium on which recording is carried out in a best state irrespective of the kind of an optical disk. <P>SOLUTION: Since the recording strategy of an optical disk is different depending on a material or a manufacturing method, an optimal recording strategy is prerecorded by recording it on an optical disk itself by prerecording, i.e., adding a format indicating how the recording strategy of the optical disk is recorded in an area used for eliminating illegal copying, in a control data zone 32, especially in a physical format information area 36 before the shipping of the optical disk. Thus, recording is carried out by the optimal recording strategy of own optical disk 10, heat accumulation on the optical disk is reduced, and a good recording/reproducing RF signal is obtained. <P>COPYRIGHT: (C)2003,JPO

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical information recording medium.
In particular, information recording and reproduction using laser light
The present invention relates to an optical information recording medium. 2. Description of the Related Art Information recording such as write-once type is performed by laser light.
Possible optical information recording media (optical discs) are known.
Compared to flexible disk, this optical disk
Large capacity optical discs (so-called CD-Rs) are known,
The information recording is performed in the near infrared region (for example, a wave in the vicinity of 780 nm).
By irradiating the CD-R with a long laser beam.
The The irradiated part of the recording layer absorbs the laser light and is locally heated.
Increase the degree of physical or chemical changes (eg pit
Information) due to changes in optical properties due to
It is. In recent years, it has been distributed with the progress of the information society.
The amount of information tends to increase, and a larger capacity optical information recording medium
In response to the demands of the
Zital Vasatile Disc, DVD-R and D
VD-RW) has been distributed. this
DVD-R, etc., is used for tracking the irradiated laser light.
Guide groove (pre-groove) is half that of CD-R
The following (0.74 to 0.8 μm) narrow and transparent
On a disk-shaped substrate, a recording layer made of a dye, a light reflecting layer,
Then, a protective layer is provided in order as necessary. DVD
-R information recording / reproduction is shorter than CD-R (for example,
For example, 630 nm to 680 nm wavelength)
Therefore, higher density recording than CD-R is possible. Such recording on an optical disk is dedicated.
This is done by a recording device. For example, DVD-R etc.
Information recording is defined by the basic recording strategy as its standard.
Records in accordance with the basic recording strategy.
Made with a recording device. However, in media manufacturers such as DVD-R,
Supply media based on original technology or multiple types of media
Can record in the best condition.
The optimum recording strategy varies slightly from medium to medium. There
Therefore, it is necessary to eliminate the fluctuation of the recording strategy for each medium.
In the case of equipment manufacturers that provide recording devices,
To achieve the best recording for each medium,
Optimal recording strategy for each media of media manufacturer
Is built into the main unit and the recording strategy corresponding to the medium
To achieve the best recording.
Yes. For example, a plurality of characteristic parameters of the recording apparatus
Store it, determine the type of media, and
Operating software that changes the characteristic parameters
Recording device (so-called firmware)
The characteristic parameters are changed by the firmware
The recorded recording strategy is set and the recording corresponding to the medium is set.
Recording in the best state by recording with a recording strategy
Is realized. [0007] However, DVD
-R and other optical discs have physical properties such as the introduction of new materials,
Improvements in optical properties due to chemical properties are constantly being made.
For this reason, it was put into operation before new optical disks were distributed.
Recording device of a new optical disc
Prepare a new recording device to support
Or have to change firmware
It was. In consideration of the above facts, the present invention provides an optical disc.
Can record in the best condition regardless of the type of
The object is to obtain an optical information recording medium. [0009] In order to achieve the above object,
In addition, the present invention provides an optical information recording medium capable of at least additional recording.
And said additional record comprising at least the type of medium
Unique information recording area for recording unique information when
Area and a data recording area continuous to the unique information recording area
At least when recording in the specific information recording area.
Related to the recording conditions that specify the recording signal waveform parameter values
Information recorded in advance. The optical information recording medium of the present invention is at least an additional medium.
Additional recording is possible, and a unique information recording area and data recording
And at least a region. An example of an optical information recording medium
Are DVD-R, DVD-R / W, and DVD-RAM.
The The unique information recording area has few types of optical information recording media.
To record unique information when performing additional recording including at least
Recording area, usually before shipping as a product
The unique information is recorded in Specific information includes DVD-R,
Optical information recording such as DVD-R / W, DVD-RAM
Data that indicates the type of recording medium. This unique information
In the recording area, user data is recorded by the recording device.
The data recording area for recording is continuous. In the present invention, it is unique
In the information recording area, record signal waveform parameter values during recording
Information relating to the recording conditions to be defined is recorded in advance. to this
Thus, the recording device can additionally record the optical information recording medium of the present invention.
Specific information is recorded or memorized.
Read information about this recording condition
With this, you can easily set the recording device to the optimum state and
Regardless of the type of
The In the unique information recording area, recording at the time of recording is performed.
Information on recording conditions that define signal waveform parameter values
Strategy data that represents your recording strategy
Can be recorded. The recording device is a recording strategy.
Because the recording is based on the optical information recording medium most closely
Record strategy data that represents your recording strategy
By reading this, you can easily get to the optimum state
You can set the recording device and record in the best condition
The The unique information recording area corresponds to a medium.
Recording device by recording signal waveform parameter value during recording
Device data can be recorded. Optical information recording medium
In an apparatus for recording information on the body, the optical information of the present invention has already been obtained.
This is the state most consistent with recording information on information recording media.
May already have unique information. So,
Recording device with recording signal waveform parameter value at corresponding recording
By recording the device data representing the device, the corresponding recording device
Recording signal waveform parameter value (i.e. optimal recording
It becomes easy to set to (Treatment). The unique information recording area is set before the shipment of the medium.
It is possible to employ a pre-record area to be recorded in
Information is recorded in advance on the optical information recording medium by the manufacturer.
The pre-record area to be recorded is set. there,
Before being shipped as a product in this pre-record area
By recording the unique information, it can be read by reading it.
Easily set the recording device to the optimum state and record in the best state
can do. The information regarding the recording condition is predetermined.
Information on criteria recording conditions (eg criteria strategy)
Difference information from can be used. by this,
Since it is not necessary to record all information, the recording capacity is reduced.
it can. In addition, information recording on the optical information recording medium
Can be easily implemented by the following optical information recording device
it can. Specifically, at least optical information that can be recorded additionally
In an optical information recording apparatus for recording information on a recording medium, the recording
Recording conditions that specify the recording signal waveform parameter values during recording
Storage means for storing information and the types of media
Record the unique information when the additional recording is included
A unique information recording area for connecting to the unique information recording area.
Optical information recording having at least a data recording area that continues
Information relating to the recording conditions in the specific information recording area of the medium.
And recording means for recording information. The optical information recording apparatus of another invention is at least
Recording information on optical information recording media that can be additionally recorded
It is. The storage means includes a recording signal waveform parameter during recording.
Information on recording conditions that define data values is stored. Record
The recording means uses a small number of unique information recording areas and data recording areas.
Recorded in unique information recording area of optical information recording medium
Record information about the condition. With this optical information recording device
Record unique information when performing additional recording on a flash information recording medium.
If recorded, the optical information recording medium conforms to the optical information recording medium.
Information about the recorded conditions (for example, recording strategy)
By reading the information about this recording condition,
The recording device can be easily set to the optimum state, and in the best state
It becomes possible to record. The recording conditions according to the optical information recording medium
Information is recorded on the optical information recording medium on which the information to be recorded is recorded.
The following optical information recording device is a device that functions effectively when
realizable. That is, information is recorded on the optical information recording medium.
Recording signal waveform during recording in an optical information recording device
Information on the recording conditions of the standard that defines the parameter value
Stored storage means and information regarding the recording conditions of the reference
Set the recording signal waveform parameter value during recording with
Setting means, and a recording signal waveform parameter set by the setting means.
Information for recording information on the optical information recording medium with parameter values
Recording means and recording conditions recorded on the optical information recording medium
Reading means for reading information on the
Recording signal waveform path based on information about recorded recording conditions
To record information on the optical information recording medium with parameter values
Set by the information on the recording condition of the standard
Adjusting means for adjusting the recording signal waveform parameter value.
An optical information recording apparatus characterized by that. This optical information recording apparatus is used for recording in the storage means.
Standard recording conditions that specify the recording signal waveform parameter value
Related to the recording conditions of this standard.
The recording signal waveform parameter value during recording
Set by setting means. The information recording means is setting means.
The information is recorded with the recording signal waveform parameter value set in
Record on an information recording medium. Here, this optical information recording device
Is provided with reading means and recorded on an optical information recording medium.
Read information about recorded conditions. Read with this reading means
Recording signal waveform path based on information about recorded recording conditions
To record information on the optical information recording medium with parameter values
In addition, the adjustment means is set according to information on the standard recording conditions.
Adjust the specified recording signal waveform parameters. This
Therefore, the optical information recording device is set to the optimum state and the best
It becomes possible to record in the state. The reading means is a type of the optical information recording medium.
Specific information for recording specific information including at least
A recording area and a continuous data recording area in the unique information recording area.
The optical information recording medium having at least a recording area
Reading information about recording conditions from the information recording area
Can do. The reading means is a recording signal waveform parameter during recording.
As information on the recording conditions that define the parameter values,
Read strategy data representing your recording strategy
be able to. The reading means is used for recording corresponding to the medium.
Device data representing the recording device based on the recording signal waveform parameter value.
Data can be read. The reading means records before the shipment of the medium.
Can read the pre-record area. Regarding recording conditions read by the reading means
The information is the difference in information regarding the recording conditions of a predetermined standard
Information can be employed. DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.
An example of the embodiment will be described in detail. <Optical Information Recording Medium> As shown in FIG.
The disc 10 is a lead-in for recording various information.
Region 12, data region 14, and formed as needed
In the order of the lead-out area 16 (FIG. 2).
Information configured from 0 inner circumference to outer circumference
Area 18 is provided. Data area 14 is a zone
It is also called the information area 18
The area is divided in units of data so that data can be recorded and reproduced. As shown in FIG. 2, recording on the optical disk 10
Or, if the area to be played is expressed in one dimension, the optical disc
The position for recording / playback on the address 10 and the
The position can also be specified by the value of the kuta. information
Lead-in area 12 constituting the formation area 18
Is an area in which the type and recording method of the optical disc 10 are recorded
In the data area 14, actual data is recorded.
The lead-out area 16 is a data area as needed.
Provided to prevent additional recording when data recording is completed.
Area. The details of the lead-in area 12 are shown in FIG.
It was shown to. The lead-in area 12 has an initial zone (Initia
l zone 20, System reserved zone (System reserved)
zone) 22, buffer zone (Buffer zone 0) 24,
Physical format information zone (R-Physical format info
mation zone 26, Reference code zone
e zone) 28, buffer zone (Buffer zone 1) 3
0, Control data zone
32, Extra Border zone 34
And in the data area 14 (Data area)
It is continuous. Incidentally, an optical disk 10 such as a DVD.
Is a large-capacity optical information recording medium.
Can be copied. Copy allowed
To prevent illegal copying
Data is to be recorded on the optical disc 10
Control data zone in the lead-in area 12
It is common to record data in 32 (pre-record)
is there. This data recording is performed by a prerecorder dedicated recording device.
Done. Data recording to prevent illegal copying
(Pre-record) is a manufacturing method for manufacturing the optical disc 10.
The pre-recorder in the lead-in area 12
The This pre-record is in the control data zone 3
2 is done. The control data zone 32 is shown in FIG.
As shown in Fig.
Area 36, disk manufacturing information area 38, system reservation area
40. The physical format information area 36 is a control field.
The position and size of data recorded in the roll data zone 32
Area where the data format that represents the content and content is recorded
Area and disc manufacturing information area 38 is the optical disc 10.
Area where information on the manufacturing side is recorded, system reservation area 4
0 is an area prepared in advance for use on the system side.
is there. Specific example of physical format information area 36
When manufacturing this optical disc as the type of data
The version of the standard used for the book, 12cm etc.
Disk size and maximum transfer rate such as 2.52 Mbps
Structure of the present optical disk, such as single layer or double layer, 0.26
Recording depth of 7 μm / bit, etc., data area 14
Allocation, NBCA descriptor, start of spare border zone 34
There are sectors and other reserved areas. These kinds of days
The position (byte position), contents, and
The size (number of bytes)
Stored. By the way, DVD-R and DVD-RW
Information recording on optical discs such as discs is thermal recording.
The recording strategy when recording is considered
The output is performed by the multi-pulse method. This multipath method
Is to irradiate the area where data is recorded with laser light.
Divided into top pulse and multi-pulse irradiation and recorded
This is a method for controlling the heat distribution generated in the region. this
Due to thermal interference between front and rear generation marks and rear end of generation marks
Heat accumulation at the head is alleviated and a good recording / reproducing RF signal is obtained.
It is possible to FIG. 5 shows an example of a recording strategy.
It was. As shown in FIG. 5, the recording strategy is
42 and, optionally, one or more subpulses 44
Specifies the pulse width and period. That is, the signal is
Length from 3T to 14T when T is the lock signal
Are used, and the toppings corresponding to each of 3T to 14T are used.
Pulse width Ttop of the pre-pulse 42 and 3T to 14
Of the pulse width Tmp of the sub-pulse 44 corresponding to each of T
A set of numbers represents a recording strategy. In this case, sub
The pulse width Tmp of the pulse 44 is each signal of 3T to 14T.
It is set in common for the length of. Also, 6T-14T
Common top pulse 42 pulse for each signal length
Can be set. FIG. 5A shows only the top pulse 42.
Shows an example of a recording strategy that
This is a recording strategy corresponding to the length. For example,
As the signal T, the pulse width Ttop of the top pulse 42
= Set recording strategy by specifying 1.55T
can do. FIG. 5B shows the top pulse 42.
And an example of a recording strategy with one subpulse 44
The recording stroke corresponding to the length of the 4T signal is shown.
It is a late. For example, the pulse width T of the top pulse 42
top = 1.50T, pulse width Tmp of sub-pulse 44
= Set recording strategy by specifying 0.65T
can do. Also, the total pulse signal time Ttt
Or the period time T from the top pulse 42 to the sub-pulse 44
cy may be further defined. Similarly, FIG. 5C and FIG.
Recording strategy equivalent to T and 6T or longer signal length
An example is shown. For example, 5T signal length
The recording strategy corresponding to is the pulse of the top pulse 42.
Width Ttop = 1.55T, subpulse 44 pulse width
By specifying Tmp = 0.65T and the number,
You can set a strategy. 6T or longer signal length
The corresponding recording strategy is the top pulse 42 performance.
Pulse width Ttop = 1.60T, subpulse 44 pulse
Recording by specifying width Tmp = 0.65T and number
A strategy can be set. The above recording strategy is the same as the optical disc 10.
It depends on the material and manufacturing method. Therefore, the optical disk 1
0 is the best recording strategy for your optical disc 10
is there. For optimal recording strategy for your optical disc 10
By recording more, heat accumulation in the optical disc 10 is reduced.
It is possible to relax and obtain a good recording / reproducing RF signal.
Become. Therefore, in this embodiment, the optical disk 1 is used.
0 recording strategy with prerecorded optical disc
10 recorded in itself. That is, eliminate illegal copying
Before the shipment of the optical disk 10 in the area used for
To pre-record. More specifically, the control data
Data zone 32. This control data
Recording in the zone 32 is performed in the physical format information area 3
6 How to record the recording strategy of the optical disc 10
Reached by adding a format to indicate
Can be made. In detail, the top path of the signal of each length described above is used.
Pulse width Ttop of Luz 42, pulse of subpulse 44
Employs a combination of data to define the width Tmp
it can. Each data is preset and used in a unified manner
If possible, it can store an identifier that represents the data.
The Furthermore, the difference value from the standard recording strategy
Representing data may be stored. Furthermore, this optical disc
Records corresponding to 10 recording strategies
Data indicating the model name and model number of the effective recording device, and the recording device
Stores data representing the type of recording strategy used in
May be. Next, the above recording strategy is recorded on the optical disc 1.
It is possible to read from 0 and reflect on when recording information
The recording device 50 will be described. As shown in FIG. 6, the recording apparatus 50 is an optical device.
Disc 10 is irradiated with laser light for playback and recording.
A pickup 52 for shooting is provided. Pickup 5
2 includes a reproduction signal detector 54 and a semiconductor laser 56.
The reproduced signal detector 54 detects the matrix signal.
The reproduction signal detector 54 and the macro
A trick amp 58 is connected. Matrix An
58 processes the detection signal of the reproduction signal detector 54.
Playback signal (RF signal), phase difference signal (DPD signal)
No.), push-pull signal (PP signal). The output side of the matrix amplifier 58 is binarized.
Is connected to the channel 60 and is connected to the matrix amplifier 58.
The input RF signal is input to the binarization circuit 60. Binary
The converting circuit 60 receives the recorded data from the input RF signal.
For detecting the data. That is, binarization times
The path 60 converts an RF signal, which is an analog signal, into a digital signal.
Is a circuit that converts to a predetermined sampling cycle.
A high-level RF signal that exceeds the specified value
Set to a tall value (for example, “1”) and other low levels
Set the RF signal to a predetermined digital value (for example, “0”)
Binarization by doing this as detection data
Output. The binarization circuit 60 is connected to the data identification circuit 62.
Connected, and output the detection data to the data identification circuit 62.
To help. The data identification circuit 62 receives the input detection data
Is a circuit for identifying the contents of recorded data.
The Specifically, a manufacturer code or record representing the manufacturer
A record that stores a strategy code that indicates the type of strategy
It has a storage device, and by referring to the storage device,
Identify the recording strategy corresponding to the input detection data
To do. Identification as the identification result of the data identification circuit 62
The signal is output to the recording strategy setting memory 64.
The The recording strategy setting memory 64 stores an identification signal (decode).
Identification result of the data identification circuit 62) and the actual recording strategy
A table that stores the correspondence with the setting data that defines
I have. The recording strategy setting memory 64 stores
Refer to the table that is
Record the setting data that defines the corresponding recording strategy.
It outputs to the signal generation circuit 66. In the recording signal generating circuit 66, one data
For recording on the optical disk 10
Number of pulses for driving the 56, pulse width, period, etc.
Is set according to the input setting data. This setting
The number of pulses, pulse width, period, etc.
10 is the optimum recording strategy. This recording signal generation
The circuit 66 has a recording signal for recording on the optical disc 10.
The number 68 is also input. Therefore, the recording signal generating circuit 66
The input recording signal 68 is recorded as a recording strategy setting method.
According to the recording strategy based on the setting data from the memory 64
The signal is converted into a semiconductor through a laser driver circuit 70
Output to laser 56. The laser driver circuit 70 is a semiconductor laser.
56 is a drive circuit for driving 56, and the input recording
ON / OFF by the pulse signal from the signal generation circuit 66 is half.
The semiconductor laser 56 as implemented by the conductor laser 56.
Drive. In this way, reading from the optical disk 10 is performed.
The recording device 50 is set with the recording strategy that has been
Record information with optimal recording strategy for disk 10.
can do. It should be noted that the matrix amplifier 58 is a track
The servo signal processing unit 72 is also connected. Truck
King servo signal processor 72 generates tracking signal
It is connected to the tracking drive mechanism 78 via a circuit 74.
ing. The tracking signal generation circuit 74 includes a picker.
Position signal for moving to the tracking position
The number 76 is also input. In the tracking servo signal processing unit 72,
Create tracking servo using PP signal or DPD signal
The signal processing unit is used by the output signal.
In the tracking signal generation circuit 74, the pickup 52
Drive signal of tracking drive mechanism 78 for tracking
Is generated by the tracking signal generation circuit 74. this
When the position signal 76 is input from a computer or the like
It is also possible to move to a more specific position. It should be noted that prerecording to the optical disk 10 is performed.
The recording device 50 can also be used as the writer. In addition, as described above, the optical disk 10 is controlled.
Record records pre-recorded in the trawl data zone 32
Read data representing the strategy and adjust the recording device 50
If the recording device 50 functions, at least the recording
A function to read and adjust the data representing the strategy is required
It is. For this purpose, the storage device of the data identification circuit 62
In the table of the recording strategy setting memory 64,
Secure space to accommodate new recording strategies
To do. The read recording strategy is displayed in this area.
It is sufficient to store data. The recording signal generation circuit 6
6 is free to support new recording strategies
The configuration can be changed to the above. That is, in this embodiment, new recording is performed.
Rather than storing the strategy in advance, the optical disc 10
Can be set to the recording strategy read in
It is completed. For this configuration, data identification
Circuit 62, recording strategy setting memory 64, recording signal
Existing processing program for defining the function of the generation circuit 66
(Firmware) can be achieved by updating
The As a result, the optical disk 10 of the present embodiment is shipped.
Even if the existing recording device 50 was manufactured before,
Optimal recording on the optical disk 10 of the embodiment
It is possible to obtain a recording apparatus 50 that can Note that the above processing program is recorded on a recording medium.
Recorded on a flexible disk
Flexible disk unit that can insert and remove
This can be easily achieved by connecting a GDU (FDU). sand
In other words, the processing routine is recorded in advance on a flexible disk.
Record it and record it on a flexible disk via FDU.
Run the recorded processing program. The recording device 5
Storage device storing 0 firmware (not shown)
Update (install) and run
Yes. As recording media, CD-ROM, MD, M
There are discs such as O and DVD and magnetic tapes such as DAT.
When using these, instead of the above FDU,
CD-ROM device, MD device, MO device, DV
A D device, a DAT device, or the like may be used. As described above, according to the present invention, the solid state is fixed.
It has at least an information recording area and a data recording area
The recording signal at the time of recording is recorded in the unique information recording area of the optical information recording medium.
For information on recording conditions that specify waveform parameter values
Since recording in advance, what to record information on the optical information recording medium
Even with these recording devices, information on recording conditions, for example
By reading the recording strategy, it can be easily optimized.
You can set the recording device and record in the best condition
There is an effect that.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of an optical disc. FIG. 2 is a conceptual diagram representing a recording / reproducing area of an optical disc in a one-dimensional manner. FIG. 3 is a schematic configuration diagram of a lead-in area 12; FIG. 4 is a schematic configuration diagram of a control data zone. FIG. 5 is an explanatory diagram of a recording strategy. FIG. 6 is a schematic block diagram of an optical disk recording apparatus. [Description of Symbols] 10 ... Optical disc 12 ... Lead-in area 14 ... Data area 16 ... Lead-out area 18 ... Information area 32 ... Control data zone 36 ... Physical format information area 42 ... Top pulse 44 ... Subpulse 50 ... Recording device

Claims (1)

What is claimed is: 1. An optical information recording medium capable of at least additional recording, and a unique information recording area for recording unique information when performing the additional recording including at least the type of the medium; An optical information recording medium having at least a data recording area continuous to the unique information recording area, wherein information relating to a recording condition defining a recording signal waveform parameter value at the time of recording is recorded in the unique information recording area.