JP2003208718A - Optical disk recording method, optical disk recording apparatus, and optical disk recording program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk recording method, an optical disk recording apparatus, and an optical disk recording program capable of automatically adjusting or allowing a user to adjust signal quality depending on data to be recorded. <P>SOLUTION: The signal quality of data recorded on an optical disk of a copy source is measured. A parameter with respect to the signal quality is set on the basis of a relation between the signal quality of data having been already stored and recorded to an optical disk and the parameter with respect to the measured signal quality of the data, and the recording data are recorded on a recording optical disk with the signal quality nearly the same as that of the data recorded on the optical disk of the copy source. Thus, music data can be reproduced with nearly the same sound quality as that of the optical disk of the copy source. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to adjustment of signal quality when recording data on a write-once optical disc and a rewritable optical disc.

[0002]

2. Description of the Related Art Recently, an optical disk capable of recording data,
In addition to cost reductions for optical disk recording devices, data recording software, computers, etc., it is possible to record large amounts of data, so audio (music) data, computer data, image (still image) data, moving image data, etc. Optical discs are used for recording / playback of various data and for backup. As the recording optical disk capable of recording data, for example, a write-once optical disk capable of recording data only once such as a CD-R or a DVD-R,
CD-RW, DVD-RW, DVD + RW, DVD-R
There is a rewritable optical disk capable of rewriting data such as AM. In the optical disc recording apparatus for recording data on these optical discs, conventionally, parameters relating to signal quality such as write strategy and recording speed are automatically set to optimum values. When using the optical disk recording device, the user can set the recording speed according to the optical disk to be used and whether to enable the function of automatically decreasing the recording speed when the setting of the recording speed is not appropriate. I was able to set it.

[0003]

It is known that when music data of a press CD (CD-DA) is recorded on an optical disc capable of recording the above data, the sound quality is slightly different. There is. Since the music data recorded on the optical disc is digital data, the sound quality does not seem to be the same as the original music data when played back, but in reality, due to differences in signal quality such as β and jitter, it may be possible for experts or audio Sound quality of music data is different at the level understood by enthusiasts.

At present, although the cause of this difference is not clearly known, it is known that the sound quality changes when the parameter relating to the recording quality is changed.

However, since the conventional optical disc recording apparatus automatically sets each parameter to the optimum value as described above, the data to be recorded on the optical disc is computer data even if it is music data. However, the data was recorded with the same optimum parameters. This optimum parameter is a set value that is most unlikely to cause an error when data is reproduced, but it cannot always be said that the optimum sound quality is obtained when recording music data. Therefore, in order to obtain a good sound quality when reproducing the music data recorded on the optical disk, it is necessary to set the optimum parameters for the music data separately from those for the computer.

However, when the data is recorded on the optical disc by the conventional optical disc recording apparatus, the user cannot set the parameter regarding the recording quality. For example, when recording music data on a CD-R, it has been impossible to adjust the β value to a desired value in order to improve the reproduction sound quality of the music data. Therefore, while a beginner can easily record data on the optical disc,
Since the parameters related to recording quality cannot be adjusted to the desired settings, the specifications were left unsatisfied by advanced users.

Further, the material of the optical disk (especially the recording layer)
Varies depending on the type, maker, model number, etc. Further, the setting of the write strategy and recording speed for each optical disc of the optical disc recording apparatus varies depending on the maker, model number, etc. Therefore, when the music data of the press CD (CD-DA) is copied to the CD-R, the reproduced sound of the press CD and the CD-R may differ due to the difference in the makers of the CD-R and the difference in the optical disk recording device for recording the music data. The sound quality of the R playback sound was sometimes different.

Further, the maximum recording speed of an optical disk capable of recording data varies depending on the manufacturing time, model number and the like.
Further, the optical disk recording apparatus has a function of automatically changing the maximum recording speed according to the optical disk when the data recording speed set by the user is incorrect and the optical disk is not compatible. However, when recording music data, the recording speed automatically set by this function does not always mean that music data can be recorded with good sound quality. Therefore, there is a problem that the specifications are unsatisfactory for users who desire good sound quality such as audiophiles.

Because of such a problem, audiophiles purchase an optical disk recording device suitable for recording music data, and select an optical disk having a good compatibility to record the music data with this optical disk recording device. Or, the optimum writing speed is adjusted for each selected optical disk. However, such work imposes a burden on the user on cost and labor.

Therefore, the present invention has been made to solve the above problems, and an object thereof is to record an optical disc in which the user or the signal quality can be automatically adjusted according to the data to be recorded. A method, an optical disk recording device, and an optical disk recording program are provided.

[0011]

The present invention has the following structure as means for solving the above problems.

(1) The relationship between the signal quality of the data to be recorded on the optical disc and the parameter relating to the signal quality is stored in advance, and the signal quality of the data recorded on the copy source optical disc is measured to obtain the signal quality. A parameter relating to the signal quality is set on the basis of the signal quality, and the recording data is recorded on the recording optical disk with a signal quality substantially equal to the data recorded on the copy source optical disk.

With this configuration, the signal quality of the data recorded on the optical disc of the copy source is measured, and the relationship between the signal quality of the data to be recorded on the optical disc and the parameter relating to the signal quality and the measurement are measured. A parameter relating to signal quality is set based on the signal quality of the data, and the recording data is recorded on the recording optical disc with a signal quality substantially equal to that of the data recorded on the copy source optical disc. Therefore, the user may, for example, press the CD (CD
-DA) when the music data is copied to the CD-R, the music data can be recorded on the CD-R with substantially the same signal quality as that of the press CD which is the copy source. The problem that the reproduced sound quality is different does not occur, and it becomes possible to reproduce the music data with a sound quality substantially equal to that of the copy source optical disc.

The parameter relating to the signal quality at the time of recording the data is a parameter for determining the signal quality of the data at the time of recording the data on the optical disk, for example, the recording speed, the write strategy and the data are recorded. At this time, there are laser power for irradiating the optical disk, target β value in OPC and running OPC, focus balance, tracking balance, and the like.

(2) The parameter relating to the signal quality of the recording data is switched according to the type of data to be recorded on the optical disc, and the data is recorded on the recording optical disc.

In this configuration, when recording data on the recording optical disc, the parameter relating to the signal quality of the recording data is switched according to the type of data to be recorded on the optical disc. Therefore, it is possible to obtain data with good recording quality according to the type of data.

(3) The data is recorded on the recording optical disc so that the signal quality of the reproduced record data varies.

In this structure, when recording data on the recording optical disc, the signal quality of the reproduced recording data is changed. Therefore, when the original data is music data, the sound quality is different from that of the original data, and a new listening feeling can be obtained.

(4) The relationship between the signal quality of the data recorded on the optical disc and the recording speed or the relationship between the data type and the recording speed is stored in advance, and the signal quality of the data recorded on the optical disc of the copy source is recorded. At least one of measurement, estimation of signal quality when data is recorded on a recording optical disc, and identification of data type to be recorded is performed, and a recording speed is selected according to the result, and a recording optical disc is selected. It is characterized in that the data is recorded to.

In this configuration, when recording data on the recording optical disc, the signal quality of the data recorded on the copy source optical disc is measured, or the signal quality is estimated when the data is recorded on the recording optical disc, or At least one of identifying the type of data to be recorded is performed.
Therefore, it is possible to record the optimum data according to the data to be recorded.

(5) Measuring means for measuring the signal quality of the data recorded on the optical disc of the copy source, and signal quality adjusting means for setting a parameter relating to the signal quality to adjust the signal quality to substantially the same as the recorded data. And a data recording means for recording the recording data on a recording optical disc.

In this structure, the measuring means measures the signal quality of the data recorded on the optical disc of the copy source, and the signal quality adjusting means sets the parameter relating to the signal quality and records it on the recording optical disc. The signal quality of the recording data is adjusted to a signal quality substantially equal to that of the data recorded on the copy source optical disk, and the recording data is recorded on the recording optical disk by the data recording means. Therefore,
The same effect as (1) can be obtained.

(6) Input means for inputting a parameter relating to signal quality of recording data, signal quality adjusting means for setting the parameter in accordance with a value inputted from the input means, and recording the recording data Data recording means for recording on an optical disc.

In this structure, the parameter relating to the signal quality of the recording data is inputted by the input means, and the parameter is set by the signal quality adjusting means according to the value inputted from the input means. Therefore, it becomes possible to set the signal quality to an arbitrary value, and the user can obtain the data of the desired signal quality.

(7) Identification means for identifying the type of data to be recorded on the optical disc, signal quality adjusting means for switching parameters relating to the signal quality of data to be recorded on the optical disc according to the identification result of the identification means, and the recorded data. Data recording means for recording the data on the recording optical disc.

In this configuration, the identifying means identifies the type of data to be recorded on the optical disc, and the signal quality adjusting means switches the parameter relating to the signal quality of the data to be recorded on the optical disc in accordance with the identification result of the identifying means. The recording data is recorded on the recording optical disc by the recording device. Therefore, the same effect as (2) can be obtained.

(8) A signal quality adjusting means for adjusting a parameter relating to the signal quality so that the signal quality of the reproduced recording data varies, and a data recording means for recording the data on the recording optical disc with the adjusted parameter. , Is provided.

In this structure, the parameter relating to the signal quality is adjusted so that the signal quality of the record data reproduced by the signal quality adjusting means varies, and the data is recorded on the recording optical disc with the parameter adjusted by the data recording means. To do. Therefore, the same effect as (3) can be obtained.

(9) Storage means for storing in advance the relationship between the signal quality of the data recorded on the optical disk and the recording speed, or the relationship between the data type and the recording speed, and the signal quality of the data recorded on the copy source optical disk. Measuring means for performing the measurement, the estimating means for estimating the signal quality when the data is recorded on the recording optical disc, the identifying means for identifying the type of data to be recorded, the measurement result of the measuring means, or the identifying means. It is characterized by further comprising: setting means for selecting and setting an optimum recording speed according to the identification result of 1. and data recording means for recording data on the recording optical disc.

In this configuration, the relationship between the signal quality and the recording speed of the data recorded on the optical disk by the storage means or the relationship between the data type and the recording speed is stored in advance and recorded on the copy source optical disk by the measuring means. The signal quality of the recorded data is measured, the signal quality when the data is recorded on the recording optical disc is estimated by the estimating means, the type of data to be recorded is identified by the identifying means, and the setting means determines the When the optimum recording speed is selected and set according to the measurement result or the identification result of the identification means, the data recording means records the data on the recording optical disc. Therefore, (4)
The same effect as can be obtained.

(10) Signal quality measuring means for measuring the signal quality of the data recorded on the copy source optical disk, identification means for identifying the type of the recording optical disk, and data recorded on the recording optical disk. It is characterized by further comprising storage means for storing the estimated signal quality and display means for displaying the signal quality of the optical disc of the copy source measured by the signal quality measuring means or the estimated signal quality of the recording optical disc. .

In this structure, the signal quality measuring means measures the signal quality of the data recorded on the optical disc of the copy source, the identifying means identifies the type of the recording optical disc, and the storing means records the data on the recording optical disc. Is stored, and the display unit displays the signal quality of the optical disc of the copy source measured by the signal quality measuring unit or the estimated signal quality of the recording optical disc. Therefore, since the signal quality of the data recorded on the optical disc and the estimated signal quality of the data to be recorded on the recording optical disc can be known, depending on the signal quality, the optical disc can be replaced with another one to obtain a better recording quality. It will be possible.

(11) Storage means for storing parameters relating to signal quality set when data is recorded on the optical disk, display means for displaying the parameters stored by the storage means, and display means for displaying the parameters. An operation means for selecting a parameter, a signal quality adjusting means for setting the parameter at the time of data recording to a value stored in the storage means, and a data recording means for recording data on a recording optical disc,
It is characterized by having.

In this configuration, the parameter relating to the signal quality set when the data is recorded on the optical disc is stored by the storage means, and the parameter stored by the storage means displayed on the display means is selected by the operating means. The signal quality adjusting means sets the parameter at the time of data recording to the value stored in the storage means. Therefore, it becomes easy to read out the signal quality previously set when recording data on the optical disk and record the data on the recording optical disk with the signal quality.

(12) Signal quality measuring means for measuring the signal quality of the data recorded on the copy source optical disk, identification means for identifying the type of the recording optical disk, and an estimated signal when data is recorded on the recording optical disk. The computer is caused to function as a storage unit that stores the quality, a signal quality of the optical disc of the copy source measured by the signal quality measuring unit, or a display unit that displays the estimated signal quality of the recording optical disc.

In this structure, the optical disc recording program measures the signal quality of the data recorded on the optical disc of the copy source by the signal quality measuring means, identifies the type of the recording optical disc by the identifying means, and stores the signal by the storing means. To store the estimated signal quality when the data is recorded on the recording optical disc and display the signal quality of the copy source optical disc measured by the signal quality measuring means on the display means or the estimated signal quality of the recording optical disc. Make the computer work.
Therefore, the same effect as (10) can be obtained.

(13) Storage means for storing parameters relating to signal quality set when data is recorded on the optical disc, display means for displaying the parameters stored by the storage means, and the parameters displayed on the display means. The computer is caused to function as an operating means for selecting and a signal quality adjusting means for setting the parameter at the time of data recording to the value stored in the storage means.

In this structure, the optical disc recording program stores the parameter relating to the signal quality set when the data is recorded on the optical disc by the storage means, and displays the parameter stored in the storage means displayed on the display means, The computer is operated so that the signal quality adjusting means sets the parameter at the time of data recording to the value stored in the storage means. Therefore, (1
The same effect as 1) can be obtained.

[0039]

1 is a block diagram showing the configuration of an optical disk recording apparatus according to an embodiment of the present invention.
As shown in FIG. 1, the optical disc recording apparatus 1 includes an optical pickup 10, a spindle motor 11, and an RF amplifier 1.
2, a servo circuit 13, an address detection circuit 14 which is an identification means, a decoder 15, a signal quality adjusting means, an identification means, and a system system control unit 16 which is a setting means, an encoder 17, a strategy circuit 18, a laser driver 19,
Laser power control circuit 20, frequency generator 21, envelope detection circuit 22, C1 error detection circuit 23, signal quality detection circuit section 24 serving as measuring means, data storage circuit 2
5, a storage unit 26 that is a storage unit, an operation unit 27 that is an operation unit and an input unit, and a display unit 28 that is a display unit. Also, the optical pickup 10 and the servo circuit 1
3, the encoder 17, the strategy circuit 18, the laser driver 19, and the laser power control circuit 20 constitute a data recording unit which is a data recording unit.

The spindle motor 11 is a motor for rotationally driving the optical disc D, which is a target for recording data. An optical disk holding mechanism (not shown) including a turntable for holding (chucking) an optical disk is provided at the tip of the rotary shaft of the spindle motor. The optical pickup 10 includes a laser diode, an optical system such as a lens and a mirror, a return light (reflected light) light receiving element, and a focus servo mechanism. During recording and reproduction, the optical disc D is irradiated with laser light, the return light from the optical disc D is received, and an EFM (Eight to Fourteen Modulation) modulated RF signal, which is a received light signal, is output to the RF amplifier 12. To do. In addition,
The focus servo mechanism is a servo mechanism for keeping the distance between the lens of the optical pickup 10 and the data recording surface of the optical disk constant. Further, the optical pickup 10 is provided with a monitor diode, and a current is generated in the monitor diode by the return light of the optical disc D, and this current is supplied to the laser power control circuit 20.

The frequency generator 21 is the spindle motor 1
1 detects the relative position signal of the optical disc, and outputs a signal for detecting the rotation angle and the number of revolutions of the optical disc to the servo circuit 13.

The RF amplifier 12 amplifies the EFM-modulated RF signal supplied from the optical pickup 10 and outputs the amplified RF signal to the servo circuit 13 and the address detection circuit 1.
4, envelope detection circuit 22, recording quality detection circuit unit 2
4 and the decoder 15.

The decoder 15 EFM-modulates the EFM-modulated RF signal supplied from the RF amplifier 12 during reproduction.
It demodulates to generate reproduction data and outputs it to the data storage circuit 25. Further, the decoder 15 performs EFM demodulation of the RF signal supplied from the RF amplifier 12 at the time of recording, when reproducing the area recorded by the test recording. Then, based on the demodulated signal, the C1 error detection circuit 23
Detects a C1 error and outputs it to the system controller 16. The C1 error detection circuit 23 applies a CIRC (Cross Interleaved Read Solomon C) to the EFM demodulated signal.
Error correction using an error correction code called ode) is performed to detect the number of frames in which a first error correction cannot be performed in one subcode frame (98EFM frame), that is, the number of C1 errors (C1 error value).

In the optical disc storage device 1 according to the present embodiment, when recording data, test recording is performed in the PCA area on the inner peripheral side of the optical disc D prior to the main recording. Then, based on the reproduction result of the test-recorded area, a recording speed for performing favorable recording on the optical disc D is obtained. The C1 error detection circuit 23a is
The C1 error of the reproduction signal in the test recorded area is detected and output to the system control unit 16.

Here, the area of the optical disc D where the test recording is performed will be described with reference to FIG. FIG. 2 is a sectional view showing the area configuration of the optical disc. The outer diameter of the optical disc D is 120 mm, and the diameter of the optical disc D is 46 to 5
A section of 0 mm is prepared as the lead-in area 114,
A program area 118 and a residual area 120 for recording data are prepared on the outer peripheral side thereof. On the other hand, the inner peripheral side PCA 112 is prepared on the inner peripheral side of the lead-in area 114. On the inner PCA 112, the test area 1
12a and a count area 112b are prepared. In this test area 112a, the test recording is performed prior to the main recording as described above. Here, as the test area 112a, an area in which test recording can be performed a plurality of times is prepared. Further, in the count area 112b, an EFM signal indicating to which part of the test area 112a the recording is completed at the end of the test recording is recorded. Therefore, when performing test recording on the optical disc D next time, by reading the EFM signal of the count area 112b, it becomes possible to know from which position in the test area 112a the test recording should be started. ing. In the optical disc recording apparatus 1 according to the present embodiment, test recording is performed on the test area 112a before the main recording of data.

Returning to FIG. 1, the data storage circuit 25 reproduces the reproduction data of the optical disc D output from the decoder 15,
Data or the like input from the outside of the optical disk recording device 1 is temporarily stored. Then, when the data is recorded on the recording optical disc, the stored data is output to the encoder 17. Also, the stored data is output to a data reproducing unit (not shown).

The address detection circuit 14 includes the RF amplifier 12
The wobble signal component is extracted from the EFM signal supplied from, and the time information (address information) of each position included in this wobble signal component, the identification information (disc ID) for identifying the optical disc, the dye / alloy of the disc, etc. The information indicating the type of disc is decrypted and output to the system control unit 16.

The signal quality detection circuit section 24 is used for the optical disc D.
When reproducing the test recording area of the
Β (asymmetry) is calculated as a parameter relating to the quality of the reproduced signal from the RF signal supplied from the device, and the calculation result is output to the system controller 16. Where β is EFM
The peak level (sign is +) of the modulated signal waveform is a,
If the bottom level (sign is −) is b, β = (a +
b) / (ab).

Before performing test recording on the optical disk D, the envelope detection circuit 22 detects E of the count area 112b of the optical disk D described above in order to detect from which part of the test area of the optical disk D the test recording is started.
The envelope of the FM signal is detected.

The servo circuit 13 includes the spindle motor 11
Rotation control, focus control, tracking control, and feed control of the optical pickup 10. In the optical disc recording apparatus 1 according to the present embodiment, the CAV (Cons) which is a method of driving the optical disc D at a constant angular velocity during recording.
tant Angular Velocity) method and CLV (Constant Lin Velocity) method that drives the optical disk D at a constant linear velocity.
ear Velocity) method, and can be performed by switching. Therefore, the servo circuit 13 is responsive to the control signal supplied from the system control unit 16 for CAV.
The system and the CLV system are switched. Here, in the CAV control by the servo circuit 13, the rotation speed of the spindle motor 11 detected by the frequency generator 21 is controlled so as to match the set rotation speed. Further, in the CLV control by the servo circuit 13, the spindle motor 11 is controlled such that the wobble signal of the EFM-modulated signal supplied from the RF amplifier 12 has the set linear velocity magnification.

The encoder 17 EFM-modulates the recording data supplied from the data storage circuit 25 and outputs it to the strategy circuit 18. The strategy circuit 18 performs time axis correction processing and the like on the EFM signal supplied from the encoder 17, and outputs the EFM signal to the laser driver 19. The laser driver 19 drives the laser diode of the optical pickup 10 according to the signal modulated according to the recording data supplied from the strategy circuit 18 and the control of the laser power control circuit 20.

The laser power control circuit 20 controls the laser power emitted from the laser diode of the optical pickup 10. Specifically, the laser power control circuit 20
Is based on the current value supplied from the monitor diode of the optical pickup 10 and the information indicating the target value of the optimum laser power supplied from the system control unit 16, and the laser light having the optimum laser power is picked up by the optical pickup. The laser driver 19 is controlled so that the laser beam is emitted from 10.

The system control unit 16 includes a CPU, a ROM,
Also, each unit of the optical disc recording apparatus 1 is controlled according to a program stored in the ROM. As described above, the system control unit 16 controls each unit of the apparatus to perform test recording on a predetermined area of the optical disc D set in the optical disc recording apparatus 1 before the main recording of data. Then, the system control unit 1
Reference numeral 6 denotes a signal quality such as a β value detected by the signal quality detecting circuit 24 from the signal obtained when the test recorded area is reproduced, and the C1 error detecting circuit 23.
A recording speed for obtaining a recordable speed at which the optical disk recording apparatus 1 can perform good recording without a recording error based on the count value of the C1 error detected by a, etc. Judgment processing is performed.

The storage unit 26 is for storing data obtained in advance through experiments and the like. The operation unit 27 is operated to adjust / determine the parameter of signal quality. The display unit 28 is for displaying the signal quality of data recorded on the optical disc.

In the optical disc recording apparatus 1 configured as described above, the optical disc recording / reproducing apparatus can be realized by a personal computer. That is, the optical pickup 10, the spindle motor 11, and the frequency generator 21 can be realized by an optical disk drive device. Further, the RF amplifier 12, the servo circuit 13, the address detection circuit 14, the decoder 15, the encoder 17, the strategy circuit 18, the laser driver 19, the laser power control circuit 20, the envelope detection circuit 22, the C1 error detection circuit 23, and the signal quality detection. The circuit unit 24 can be realized by an MPU or a peripheral circuit. Alternatively, it can be realized by a peripheral circuit of the optical disk drive device. The system control unit 16 uses M
It can be realized with PU. Data storage circuit 25 and storage unit 2
6 can be realized by a memory, a RAM, and a ROM. The operation unit 27 can be realized by an input device such as a keyboard and a mouse. The display unit 28 can be realized by a monitor.

The operation of recording data on the optical disc D in the optical disc recording apparatus 1 configured as described above will be described. The inventors conducted various experiments and studies in order to obtain good sound quality when music data was copied from a press CD (master disk) to an optical disk capable of recording data. As a result, when the music data is copied from the press CD (master disc) onto the recordable optical disc, the music is recorded onto the recordable optical disc so that the signal quality is almost the same as the signal quality of the data recorded on the master disc. It has been found that recording data gives a sound quality almost equal to that of the master disc.

Therefore, in the first embodiment of the present invention, when the data recorded on the optical disc is copied, the signal quality of the data-recorded optical disc (copy source optical disc) is measured, and the signal quality is almost the same as the signal quality. In order to obtain the signal quality, set the signal quality parameter to a predetermined value,
Data is recorded on the recording optical disc of the copy destination.

For example, when reading music data such as a press CD (CD-DA) or a recorded CD-R from a recorded optical disc, the signal quality of the recorded data such as β and asymmetry values is measured. Then, based on the signal quality information, a parameter relating to the signal quality at the time of recording the data (for example, the reproduction waveform of the original music data and the reproduction waveform of the music data to be recorded are substantially the same) (for example, The target β value and recording speed at the time of performing OPC) are set to predetermined values. Then, the music data of the copy source optical disc is recorded on the optical disc with this setting. It should be noted that the relationship between the signal quality of data and the parameter related to the signal quality of data may be obtained in advance by performing an experiment or the like, and the parameters may be adjusted based on this relationship.

Thus, the music data of the copy source optical disk and the music data of the copy destination optical disk have substantially the same HF signal and signal quality, and the sound quality of the music data can be adjusted to be substantially the same. The data is not limited to music data, and may be other data.

In addition to the above β and asymmetry, the value indicating the signal quality includes HF modulation degree, HF amplitude, reflectance, average reflectance, crosstalk, jitter, deviation, effective length, and the like. Further, when measuring the signal quality of the music data, it is preferable to measure one or more of the above-mentioned values indicating the signal quality and set the parameters.

The parameters relating to the signal quality at the time of recording the data and the parameters affecting the signal quality are the recording speed, the write strategy, the laser power applied to the optical disc at the time of recording the data, and the OPC.
And target β value for running OPC, focus balance, tracking balance, etc. Further, these parameters are not independent of each other and are related to each other, and when the value of a certain parameter is changed, the values of other parameters are also changed accordingly.

Further, when there is an internal / external difference in the signal quality of the copy source, the parameters may be recorded while being changed at the recording position (time) to give substantially the same signal quality internal / external difference.

FIG. 3 is a flow chart for explaining the first embodiment of the present invention. Here, a parameter relating to signal quality will be described below as a target β value. First, the user is required to press CD (CD-DA) or recorded CD.
A master disk such as -R is set in the optical disk recording apparatus 1 and the operation unit 27 is operated to reproduce music data (s1). When the system control unit 16 receives the signal from the operation unit 27, the system control unit 16 automatically adjusts the servo in order to read the music data of the master disk. The servo circuit 13 outputs control signals for the focus servo mechanism and the tracking servo mechanism to the optical pickup 10. It also outputs a rotation control signal to the spindle motor 11.
The system control unit 16 outputs a predetermined signal for controlling the laser power to the laser power control circuit 20. The laser power control circuit 20 outputs a control signal for the laser driver 19 and outputs a power control signal for the laser light emitted from the laser diode to the optical pickup 10 from the laser driver 19. Laser light of a predetermined laser power is emitted from the laser diode of the optical pickup 10, and return light (reflected light) of the laser light is emitted from the optical pickup 10.
Is received by the light receiving element, converted into an electric signal, and output to the RF amplifier 12 (s2).

The signal amplified by the RF amplifier 12 is output to the signal quality detection circuit section 24, and the signal quality detection circuit section 24 measures the signal quality of the music data of the master disk (s3). The measurement result is the system control unit 1
It is output to 6 and stored in the built-in RAM (s4).

The signal of the music data amplified by the RF amplifier 12 is decoded by the decoder 15 and output to the data storage circuit 25, and the data storage circuit 25 stores the music data of the master disk (s5). ). When all the music data of the master disk is stored in the data storage circuit 25, the system control unit 16 displays on the display unit 28 that the storage of the music data is completed (s6).

Upon confirming this display, the user takes out the master disk from the optical disk recording apparatus 1 and sets an optical disk capable of recording data in the optical disk recording apparatus 1 instead (s7).

The system control unit 16 performs automatic servo adjustment of the optical disc for recording data, reads the ATIP information, and determines the type of optical disc. Then, a predetermined signal is sent to the servo circuit 13, the laser power control circuit 20,
Output to the encoder 17. The optical pickup 10 irradiates the optical disc with laser light, the return light is received by the light receiving element, converted, and output to the RF amplifier 12.
This signal is output to the address detection circuit 14, and the address of the optical disk is detected and output to the system control unit 16 (s8). The system control unit 16 reads out the data stored in advance in the storage unit 26 based on the identification information of the optical disc. And this data and the RA
The recording parameters are set based on the signal quality measurement result stored in M (s9).

Subsequently, the system control unit 16 confirms whether or not there is no problem in setting the recording parameter, and at the same time, performs OPC to determine the optimum laser power. That is, a predetermined signal is sent to the servo circuit 13, the laser power control circuit 20, based on the set recording parameters.
It outputs to the encoder 17 and the strategy circuit 18. The optical pickup 10 records and reproduces a test signal on the PCA. This return light is output to the signal quality detection circuit section 24 via the RF amplifier 12 (s10). The signal quality detection circuit unit 24 detects the signal quality of the test signal and outputs it to the system control unit 16 (s11). System control unit 16
Compares the signal quality data output from the signal quality detection circuit unit 24 with the signal quality of the master disk stored in the RAM (s12). If there is a problem, perform steps s9 to s12 again. If there is no problem, the music data copied from the master disc stored in the data storage circuit 25 is recorded on the optical disc by setting the recording parameters. That is, music data is output from the data storage circuit 25, and a predetermined signal is output based on the set recording parameters in the servo circuit 13 and the laser power control circuit 2.
0, encoder 17, and strategy circuit 18.
Then, the optical pickup 10 irradiates the recording optical disc with a laser beam corresponding to the music data to record the music data. At this time, the reflected light from the optical disc is received by the light receiving element of the optical pickup 10, and the RF amplifier 1
The music data is recorded while the recording signal is monitored by the signal quality detection circuit unit 24 via 2 (s13). When the recording of the music data is completed, the system control unit 16 displays on the display unit 28 that the recording of the data is completed (s1).
4). Then, the process ends.

Next, a second embodiment of the present invention will be described. In the second embodiment of the present invention, the user can set the parameter relating to the signal quality of the data to be recorded on the recording optical disc of the optical disc recording device to any value. That is, when music data is recorded on an optical disc by an optical disc recording device, a parameter relating to signal quality can be set according to the user's preference, thereby providing an environment in which the sound quality that the user feels good can be set. Is. The details will be described below.

Parameters relating to signal quality when recording data include β (asymmetry), write strategy, HF modulation degree, and amplitude. Further, as described above, each of these parameters is not independent, and when the value of any one of the parameters is changed, the values of the other parameters also change accordingly. Therefore, by conducting experiments etc., setting some patterns in advance,
It is advisable to store this pattern in the storage unit of the optical disk recording device and set it so that the user can select from these patterns when recording data on the recording optical disk D. Of course, the user may be allowed to set desired parameter values.

In addition, depending on the value of the parameter, the data recorded on the recording optical disk may not be reproducible. Therefore, when the user tries to select such a setting, a warning display is displayed on the display section or the settable range is set. May be restricted.

FIG. 4 is a display example for setting parameters relating to the signal quality displayed on the display unit. Figure 4
As shown in (A), for example, a graph may be displayed on the display unit and the user may select a set value from this graph. Further, as shown in FIG. 4B, a table in which parameter patterns relating to signal quality are set may be displayed and the set value may be selected from this table.
Further, as shown in FIG. 4C, a gauge that allows the user to set an arbitrary value may be displayed on the display unit so that the user can select a desired set value. In addition,
In this case, for example, when the value of the setting β is changed, the parameters of C1 error, jitter, and sound change accordingly.

As described above, the user can set the parameter relating to the signal quality to an arbitrary value, so that, for example, when recording music data on the optical disc, the desired sound quality can be set, and the optical disc can be set as in the conventional optical disc. The cost and time for selecting the recording device or the recording optical disk can be reduced.

Further, in the optical disc recording apparatus of the second embodiment, it is preferable to provide a changeover switch for changing over whether the apparatus automatically sets the parameter relating to the signal quality or the user sets an arbitrary value. . in this case,
When the device automatically sets the parameter regarding the signal quality, it is necessary to set the initial value (default value).

FIG. 5 is a flow chart for explaining the second embodiment of the present invention. The data to be recorded on the optical disk is assumed to be stored in the data storage circuit 25 in advance. First, the user operates the changeover switch of the operation unit 27 to select the mode in which the user sets the parameter regarding the signal quality. Then, the recording optical disk is set in the optical disk recording apparatus 1 (s31). The system control unit 16 automatically adjusts the servo to determine the type of the set recording optical disk. Servo circuit 13, laser power control circuit 20, encoder 1
A predetermined signal is output to each of 7. With these signals, the optical pickup 10 irradiates the recording optical disc with laser light, and the return light is received by the light receiving element of the optical pickup 10 and converted into an electric signal to be transmitted to the RF amplifier 12.
Is output to. This signal amplified by the RF amplifier 12 is output to the address detection circuit 14, the address detection circuit 14 detects ATIP information (address information), and is output to the system control unit 16 (s32). The system control unit 16 determines the type of the optical disc based on this signal, and calls the data pattern of the parameter relating to the signal quality from the storage unit 26. Then, this data is converted into, for example, a table and displayed on the display unit 28 (s33).
The user operates the operation unit 27, selects a desired value of the parameter from the table displayed on the display unit 28, and inputs the value (s34). The system control unit 16 sets the values of this parameter and other parameters based on the value of the selected parameter (s35).

Then, the servo circuit 1 is used to perform OPC.
3, a predetermined signal is output to each of the laser power control circuit 20 and the encoder 17 to perform test recording. The test recorded area is reproduced and the returned light is the optical pickup 10.
Is received by the light receiving element and converted into an electric signal, and the amplified signal is output from the RF amplifier 12 to the signal quality detection circuit unit 2
4 (s36). The system control unit 16 sets the optimum laser power based on the signal output from the signal quality detection circuit unit 24 and the like. Then, the system control unit 16 causes the data storage circuit 25 to output the data to be recorded on the recording optical disc (s37). This data is emitted as laser light from the optical pickup 10 via the encoder 17, the strategy circuit 18, and the laser driver 19, and the data is recorded on the optical disc (s38).
When the data recording is completed, the optical disc recording device 1
The completion of data recording is displayed on the display unit 28, and the process ends (s39).

Next, a third embodiment of the present invention will be described. In the third embodiment of the present invention, the optical disc recording apparatus can automatically set the parameter relating to the signal quality according to the data to be recorded. In addition, the user can set the parameter regarding the signal quality according to the data to be recorded. That is, when data is recorded on the optical disc by the optical disc recording apparatus, an environment is provided in which parameters regarding optimum signal quality according to the data can be set.

The details will be described below. In the third embodiment, when the optical disc recording apparatus reads the recording data of the optical disc of the copy source, or when the recording data is transmitted from the outside to the data storage circuit, the system control unit determines the type of the recording data. To determine. Then, the system control unit sets the parameter regarding the signal quality based on the determination result. For example, if the recording data is music data,
Set the parameters related to signal quality so that the sound quality is the best. Further, when the recording data is computer data (for example, mode1), parameters relating to signal quality are set in advance so that an error does not occur as in the conventional case. In this case, the optical disk recording device automatically discriminates even if the user does not care about the type of data to be recorded, which is particularly effective for beginners.

Also, for example, when recording music data on an optical disk, some users place great importance on sound recording without error and are not particular about sound quality. In such cases,
Although the data to be recorded on the optical disc is music data, it is better to set the parameter relating to signal quality for computer data. Therefore, the user can set the type of data to be recorded.

In this case, in the case of computer data, it is advisable to pay attention to the C1 error value as the signal quality parameter. FIG. 6 is a diagram showing the relationship between C1 error and β and the relationship between jitter and β when recording data on an optical disc. That is, as shown in FIG. 6A, since the relationship between the C1 error and β is a quadratic curve,
Each parameter is set so that the error value becomes the bottom value of this quadratic curve. On the other hand, in the case of music data, it is good to pay attention to the jitter value. That is, since the relationship between the jitter and β shown in FIG. 6B is a quadratic curve, each parameter is set so that the jitter value has a value at the bottom of this quadratic curve.

In the case of music data, the degree of modulation may be focused on. That is, it is preferable to aim at a point where the value of the modulation factor (I3 / I11) increases. Furthermore, the write strategy may be adjusted to increase the length of the short pit (particularly 3T).

FIG. 7 shows an example of setting parameters according to the type of data. In consideration of the above parameters, as shown in FIG. 7, parameters relating to recording quality are set according to the type of data, recording speed, type of optical disc, etc. This content may be displayed on the display unit No. 1.

FIG. 8 is a flow chart for explaining the third embodiment of the present invention. The data to be recorded on the optical disk is assumed to be stored in the data storage circuit 25 in advance. First, the user sets a recording optical disc in the optical disc recording device 1 (s51). System control unit 1
Reference numeral 6 designates a servo circuit 13, a laser power control circuit 20, and a laser power control circuit 20 for determining the type of the set recording optical disc.
A predetermined signal is output to each encoder 17. With these signals, laser light is emitted from the optical pickup 10 to the recording optical disc, and the return light is received by the light receiving element of the optical pickup 10, converted into an electrical signal, and converted into an R signal.
It is output to the F amplifier 12. This signal amplified by the RF amplifier 12 is output to the address detection circuit 14, the ATIP information (address information) is detected by the address detection circuit 14, and is output to the system control unit 16 (s52).

Then, the changeover switch of the operation unit 27 is operated to select whether the apparatus automatically sets the parameter relating to the signal quality according to the data to be recorded or the user sets it (s53). ). When the device automatically sets the parameters, the system control unit 16
Calls the data pattern of the parameter relating to the signal quality of the storage unit 26 from the type of data and the type of disk stored in the storage circuit 25. And this data
For example, it is converted into a table and displayed on the display unit 28 (s5
4). The system control unit 16 automatically sets the value of the parameter based on the value of the selected parameter (s5
5). Then, predetermined signals are output to the servo circuit 13, the laser power control circuit 20, and the encoder 17 in order to perform OPC. With these signals, the optical pickup 10 irradiates the recording optical disc with laser light, and test recording is performed. The portion is reproduced, and the returned light is received by the light receiving element of the optical pickup 10, converted into an electric signal, and output to the RF amplifier 12 (s56). The amplified signal is output from the RF amplifier 12 to the signal quality detection circuit unit 24. The system control unit 16 sets the optimum laser power based on the signal output from the signal quality detection circuit unit 24 (s57). Then, the system control unit 16 causes the data storage circuit 25 to output the data to be recorded on the recording optical disc. This data is emitted as laser light from the optical pickup 10 via the encoder 17, the strategy circuit 18, and the laser driver 19,
Data is recorded on the optical disc (s58). When the recording of the data is completed, the optical disc recording apparatus 1 is connected to the display unit 2
The completion of data recording is displayed on 8 and the process is terminated (s59).

On the other hand, when the user sets, the operation unit 2
The data mode is selected by operating 7 (s60). Based on this selection, the system control unit 16 sets the parameter regarding the signal quality (s6
1), s56 and the subsequent processes are executed.

Next explained is the fourth embodiment of the invention. In the fourth embodiment of the present invention, data recording is performed by setting parameters relating to signal quality so that the signal quality during reproduction may fluctuate, that is, change or fluctuate.

Details will be described below. In order to change or fluctuate (change) the signal quality at the time of reproduction, for example, it is preferable to record the signal quality changing at a constant frequency. Alternatively, it may be recorded when the signal quality changes at a random frequency. Further, the center frequency may be set and recording may be performed so that the signal quality changes regularly.

In order to change or fluctuate the signal quality during reproduction, for example, the recording power may be changed. Also, the write strategy may be changed. Further, the focus balance may be changed.

However, when the signal quality at the time of reproduction is changed or fluctuates by the above method, fluctuation components which are not desired to be included in the signal are actually carried due to wobble, disc eccentricity, disc surface fluctuation, etc. Sometimes. Therefore, by changing the recording parameter by the following method, it is possible to add the original fluctuation while canceling the fluctuation component that is not desired to be added.

That is, the parameter for canceling the fluctuation component is set so that the fluctuation component which is not desired to be placed can be canceled. FIG. 9 is a graph showing waveforms of fluctuation components and parameters for canceling the fluctuation components. As shown in FIG. 9, by setting the recording power as the recording parameter so as to correspond to the absolute value of the frequency of the disc eccentricity, it is possible to cancel the fluctuation caused by the disc eccentricity.

Further, by placing an arbitrary frequency on the signal as the base frequency, it is possible to add a fluctuation component of a desired frequency to the recorded data. For example, the frequency (about 10 Hz) of the α-wave component, which is a kind of human brain waves, is suitable. That is, it is known that human brain waves include α-waves, β-waves, γ-waves, and the like, and when the α-wave component increases, the human becomes in a relaxed state. Further, when listening to music fluctuating at the frequency of the α-wave component (about 10 Hz), it is said that the brain wave has many α-wave components in tune with this frequency. Therefore, by placing fluctuations in the frequency (about 10 Hz) of the α-wave component on the music data recorded on the optical disc, it is expected that the person listening to the reproduced music data can relax.

As described above, when the data to be recorded is music data, by changing or fluctuating the signal quality at the time of reproduction, a new audible feeling and a new mental effect can be produced.

Next, the operation of the optical disk recording apparatus according to the fourth embodiment of the present invention will be described using a flowchart.
FIG. 10 is a flowchart for explaining the fourth embodiment of the present invention. The data to be recorded on the optical disk is assumed to be stored in the data storage circuit 25 in advance. In addition, the frequency component to be included in the recorded data is set by the storage unit 2
6 is stored. First, the user operates the switch of the operation unit 27 to set the type of frequency component to be included in the data to be recorded (s71). Subsequently, the user sets the recording optical disc in the optical disc recording device 1 (s72). The system control unit 16 reads the frequency component pattern from the storage unit 26 and the data to be recorded on the optical disc from the data storage circuit 25 according to the set frequency component type (s73).
Then, a parameter relating to recording quality is set so that this data fluctuates with the set frequency component (s7).
4). Subsequently, the system control unit 16 causes the servo circuit 1
3, a predetermined signal is output to each of the laser power control circuit 20, the encoder 17, and the strategy circuit 18, and the optical pickup 10 is controlled to irradiate the optical disc with laser light to record data (s75). When the recording of the data is completed, the system control unit 16 causes the display unit 28 to display that effect (s76), and ends the process.

Next explained is the fifth embodiment of the invention. In the fifth embodiment of the present invention, data recording is automatically performed at an optimum recording speed according to the signal quality of the optical disc and the data to be recorded. The details will be described below.

As described above, when the data is recorded on the optical disk by mistake, if the user tries to record the data by setting the recording speed which the optical disk does not support, the optical disk recording apparatus automatically sets the maximum value. There was a function to reset the recording speed according to the optical disc. However, when music data is recorded using the function, the sound quality is not always the best.

Therefore, in the fifth embodiment of the present invention, by recording data at an optimum recording speed according to the data to be recorded on the optical disc, for example, when recording music data on the optical disc, recording with good sound quality is performed. can do.

The optimum recording speed corresponding to the optical disc is stored in the storage unit 26 in advance, and when recording data on the optical disc, the type of the optical disc and the type of the data to be recorded are identified, and the Information about the optimum recording speed according to the identification result may be read from the storage unit 26.

Next, the specific operation of the optical disk recording apparatus of the fifth embodiment of the present invention will be described. FIG. 11 is a flow chart for explaining the fifth embodiment of the present invention.

First, the user sets the copy source optical disk in the optical disk recording apparatus 1 (s81). The system control unit 16 reads data from the optical disc of the copy source and stores this data in the data storage circuit 25 (s
82). At this time, the system control unit 16 identifies the type of data from the format of the optical disc of the copy source and the content of the data, and stores the information in the built-in RAM (s
83). Then, the fact that the data storage is completed is displayed on the display unit 28 to inform the user (s84).

The user replaces the copy source optical disk with a recording optical disk (s85). System control unit 16
Reads the ATIP information of the recording optical disc and identifies the type of the recording optical disc (s86). And
The system control unit 16 reads the information about the optimum recording speed of the optical disk from the storage unit 26, and selects the optimum recording speed according to the type of recording optical disk and the type of data to be recorded (s87). Then, the data is recorded on the recording optical disc at the selected recording speed (s8).
8). When the data recording is completed, the system control unit 16
Causes the display unit 28 to display that effect (s89), and ends the processing.

Next explained is the sixth embodiment of the invention. In the sixth embodiment of the present invention, before data recording,
The user is presented with the signal quality of the data recorded on the optical disc of the copy source and the estimated signal quality when the data is recorded on the recording optical disc for copying the data. The details will be described below.

When recording data on the optical disc, the user may want to know the recording quality of the copy source optical disc. In addition, there is a case where it is desired to know what the recording quality is when the data is recorded on the copy destination optical disk. In such a case, if the information such as the signal quality of the data to be recorded can be known without purchasing the optical disk (medium), the labor and cost of the user can be reduced.

Therefore, in the optical disc recording apparatus according to the sixth embodiment of the present invention, the storage unit 26 stores the preset parameter relating to the signal quality of the optical disc and the parameter relating to the signal quality set when recording data on the optical disc. I will let you. Then, when data is stored in another optical disc, the parameter regarding the signal quality stored in the storage unit 26 is displayed on the display unit 28, and the user operates the parameter regarding the signal quality displayed on the display unit 28 by the operation unit 27. Make it selectable. The user operates the operation unit 27
When the selected parameter is operated, the system control unit 16 sets the parameter value relating to the signal quality stored in the storage unit 26, and the servo circuit 13, the laser power control circuit 20, the encoder 17, and the strategy circuit 1 are set.
A predetermined signal is output to 8 and laser light is emitted from the optical pickup 10 to record data on the recording optical disc set in the spindle motor.

By providing the information on the signal quality of the recording data as described above, the user can grasp the signal quality of the data to be recorded on the optical disk in advance. Therefore, as in the past, it was found that the signal quality was poor after recording, and multiple media were selected in order to perform data recording again with another media or to select a media that can record music data with good sound quality. No need to buy. That is, it is very useful for the user.

FIG. 12 shows an example of the signal quality of the optical disc displayed on the display section of the optical disc recording apparatus. The signal quality data provided to the user is, for example, as shown in FIG.
As shown in the table of estimated signal quality according to the recording speed shown in
The signal quality may be displayed in a table format. In addition, FIG.
The estimated signal quality may be displayed in a graph format as shown in the graph of (B) showing the relationship between β and jitter using the recording speed as a parameter.

The sixth aspect of the present invention which operates as described above.
The optical disc recording apparatus 1 of the embodiment can be realized by a computer including an optical disc drive. That is, the signal quality detection circuit section 24, which is a signal quality measuring means for measuring the signal quality of the data recorded on the optical disc of the copy source, can be realized by the MPU and peripheral circuits constituting the computer. Further, the address detection circuit 14 and the system control unit 16, which are identification means for identifying the type of the recording optical disc, can be realized by an MPU and peripheral circuits that constitute a computer. Further, the storage unit 26, which is a storage unit that stores estimated signal quality when data is recorded on the recording optical disc, is a memory that constitutes a computer, R
It can be realized by AM and ROM. In addition, the display unit 28, which is a display unit that displays the signal quality of the optical disc of the copy source measured by the signal quality measuring unit or the estimated signal quality of the recording optical disc, can be realized by a monitor that constitutes a computer.

Further, it is preferable that a program for operating each of the above units is stored in the storage unit 26 in advance, and the program is read and executed when the user operates the operation unit 27.

When a recording optical disc is newly released and it is desired to obtain information about the optical disc, it is preferable to update the firmware via the Internet using a communication means (not shown).

Next, a seventh embodiment of the present invention will be described. The optical disc recording apparatus according to the seventh embodiment of the present invention is
The storage unit stores the signal quality parameter when data is recorded in the past. When recording data on the optical disc, the user can call past data and record the data.

The details will be described below. For example, if the user previously adjusted the music data and recorded the music data on the optical disc a, the music data could be recorded with very good sound quality. Therefore, if the user wants to record the music data on the optical disc a with the same setting, In other words, there are cases where it is desired to change the copy source disc depending on the data to be recorded and the signal quality. In addition, it may be desired to perform a conditional search when the value of the recording quality is a certain value and set the recording parameter based on the search result. In such a case, if the user can know the parameter information regarding the signal quality when the data is recorded on the optical disc in the past, the user can easily set the parameter and record it on the data optical disc.

Therefore, in the optical disk recording apparatus according to the seventh embodiment of the present invention, the storage section 26 stores the parameter relating to the signal quality set when data is recorded on the optical disk in the past. Then, when data is stored in another optical disc, the parameter regarding the signal quality stored in the storage unit 26 is displayed on the display unit 28, and the user operates the parameter regarding the signal quality displayed on the display unit 28 by the operation unit 27. Make it selectable. The user operates the operation unit 27
When the selected parameter is operated, the system control unit 16 sets the parameter value relating to the signal quality stored in the storage unit 26, and the servo circuit 13, the laser power control circuit 20, the encoder 17, and the strategy circuit 1 are set.
A predetermined signal is output to 8 and laser light is emitted from the optical pickup 10 to record data on the recording optical disc set in the spindle motor.

As described above, by providing the parameter information relating to the signal quality recorded in the past, it is necessary to take note of how the parameter relating to the signal quality is set when this function is not provided. It is necessary to review the memo when data is recorded again with the setting, but by using the present invention, such a troublesome work need not be performed.

When the parameter setting relating to the signal quality is stored in the optical disk recording apparatus, an indication as to whether or not to keep this setting is displayed on the display section of the apparatus after the data recording is completed. According to the instruction, the user may operate the operation unit to input a memorandum, for example. Further, when the parameter setting relating to the signal quality stored in the optical disk recording device is called, the desired setting may be called by operating the operation unit before recording the data on the optical disk.

The seventh aspect of the present invention which operates as described above.
The optical disc recording apparatus 1 of the embodiment can be realized by a computer including an optical disc drive. That is, the storage unit 26, which is a storage unit that stores parameters relating to signal quality set when recording data on an optical disc, is a memory that constitutes a computer, R
It can be realized by AM and ROM. Further, the display unit 28, which is a display unit that displays the parameter relating to the signal quality stored in the storage unit 26, can be realized by a monitor that constitutes a computer. The operation unit 27, which is an operation means for selecting a parameter relating to signal quality displayed on the display unit 28, can be realized by a keyboard or a mouse. The system control unit 16, which is a signal quality adjusting unit that sets the parameter related to the signal quality at the time of data recording to the value stored in the storage unit 26, can be realized by an MPU or a peripheral circuit forming a computer.

Further, it is preferable that a program for operating each of the above-mentioned units is stored in the storage unit 26 in advance and the program is read and executed when the user operates the operation unit 27.

In each of the above embodiments, the setting data may be set for each type of optical disc (for each medium) and each recording speed.

The present invention is not limited to the CLV system and the CAV system, but can be applied to the partial CAV system and other recording systems.

[0118]

According to the present invention, it is possible to reproduce music data with substantially the same sound quality as that of the copy source optical disk without causing the problem that the reproduced sound quality is different due to the different signal quality as in the prior art. it can. In addition, since it is only necessary to set the parameter regarding the signal quality, the signal quality can be easily adjusted. Further, it becomes possible to set the signal quality to any value, and the user can obtain the data of the desired signal quality. In addition, data with good recording quality can be obtained according to the type of data.

When the original data is music data, the sound quality is different from that of the original data, so that a new listening feeling can be obtained. Further, it is possible to record the optimum data according to the data to be recorded. In addition, since the signal quality of the data recorded on the optical disc and the estimated signal quality of the data to be recorded on the recording optical disc are known, depending on the signal quality, the optical disc may be replaced with another one to improve the recording quality. You can Further, it is easy to read out the signal quality previously set when recording data on the optical disc and record the data on the recording optical disc with the signal quality.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an optical disc recording device according to an embodiment of the present invention.

FIG. 2 is a sectional view showing an area configuration of an optical disc.

FIG. 3 is a flowchart for explaining the first embodiment of the present invention.

FIG. 4 is a display example for setting parameters related to signal quality displayed on a display unit.

FIG. 5 is a flowchart for explaining a second embodiment of the present invention.

FIG. 6 is a diagram showing a relationship between C1 error and β and a relationship between jitter and β when recording data on an optical disc.

FIG. 7 is an example of setting parameters according to the type of data.

FIG. 8 is a flowchart illustrating a third embodiment of the present invention.

FIG. 9 is a graph showing waveforms of a fluctuation component and a parameter for canceling the fluctuation component.

FIG. 10 is a flowchart for explaining a fourth embodiment of the present invention.

FIG. 11 is a flowchart for explaining a fifth embodiment of the present invention.

FIG. 12 is an example of the signal quality of the optical disc displayed on the display unit of the optical disc recording device.

[Explanation of symbols]

1-optical disk recording device 10-Optical pickup 16-system control unit 20-Laser power control circuit 24-Signal quality detection circuit section 25-Reflected light power ratio detection circuit 26-storage unit 27-Operation unit 28-Display

Claims (13)

[Claims] 1. A relationship between a signal quality of data to be recorded on an optical disc and a parameter relating to the signal quality is stored in advance, the signal quality of the data recorded on the optical disc of the copy source is measured, and based on the signal quality. An optical disk recording method, wherein a parameter relating to signal quality is set, and the recording data is recorded on the recording optical disk with a signal quality substantially equal to the data recorded on the optical disk of the copy source. 2. An optical disk recording method, wherein the parameter relating to the signal quality of the recording data is switched according to the type of data to be recorded on the optical disk, and the data is recorded on the recording optical disk. 3. An optical disk recording method, wherein data is recorded on a recording optical disk so that the signal quality of reproduced recording data varies. 4. A signal quality measurement of data recorded on an optical disc as a copy source by previously storing a relationship between a signal quality of data recorded on an optical disc and a recording speed or a relationship between data type and a recording speed. , Or at least one of estimating the signal quality when data is recorded on the recording optical disc, and identifying the type of data to be recorded, and selecting the recording speed according to the result and selecting the recording speed to the recording optical disc. An optical disk recording method characterized by recording data. 5. A measuring means for measuring the signal quality of data recorded on an optical disc as a copy source, and a signal quality adjusting means for setting a parameter relating to the signal quality to adjust the signal quality to substantially the same as the recorded data. An optical disc recording apparatus comprising: a data recording unit that records the recording data onto a recording optical disc. 6. An input unit for inputting a parameter relating to a signal quality of recording data, a signal quality adjusting unit for setting the parameter according to a value inputted from the input unit, and an optical disc for recording the recording data. An optical disk recording apparatus, comprising: 7. An identification unit for identifying the type of data to be recorded on the optical disc, a signal quality adjusting unit for switching a parameter relating to the signal quality of the data to be recorded on the optical disc according to the identification result of the identification unit, and the recording data. An optical disk recording apparatus comprising: a data recording unit for recording on a recording optical disk. 8. A signal quality adjusting means for adjusting a parameter relating to the signal quality so that the signal quality of the reproduced recording data varies, and a data recording means for recording data on the recording optical disc with the adjusted parameter. An optical disc recording apparatus comprising: 9. A storage means for storing in advance the relationship between the signal quality and the recording speed of the data recorded on the optical disc, or the relationship between the data type and the recording speed, and the signal quality of the data recorded on the copy source optical disc. Measuring means for performing measurement, estimating means for estimating signal quality when data is recorded on a recording optical disc, identifying means for identifying the type of data to be recorded, measurement result of the measuring means, or identifying means An optical disk recording apparatus comprising: a setting means for selecting and setting an optimum recording speed according to an identification result; and a data recording means for recording data on a recording optical disk. 10. A signal quality measuring means for measuring the signal quality of data recorded on a copy source optical disk, an identifying means for identifying the type of the recording optical disk, and an estimation when data is recorded on the recording optical disk. An optical disc comprising: a storage unit that stores the signal quality; and a display unit that displays the signal quality of the optical disc of the copy source measured by the signal quality measuring unit or the estimated signal quality of the recording optical disc. Recording device. 11. Storage means for storing a parameter relating to signal quality set when recording data on an optical disc, display means for displaying the parameter stored by the storage means, and the parameter displayed on the display means. And a signal quality adjusting means for setting the parameter at the time of data recording to the value stored in the storage means, and a data recording means for recording data on the recording optical disc. Optical disk recording device. 12. A signal quality measuring means for measuring a signal quality of data recorded on a copy source optical disk, an identifying means for identifying a type of a recording optical disk, and an estimated signal quality when data is recorded on the recording optical disk. An optical disc recording program for causing a computer to function as a storage unit that stores the signal quality of the copy source optical disc measured by the signal quality measuring unit or a display unit that displays the estimated signal quality of the recording optical disc. 13. Storage means for storing a parameter relating to signal quality set when recording data on an optical disc, display means for displaying the parameter stored by the storage means, and selection of the parameter displayed on the display means. An optical disc recording program for causing a computer to function as an operating unit for controlling, and a signal quality adjusting unit for setting the parameter at the time of data recording to a value stored in the storage unit.