WO2004112010A1 - 情報記録方法及び情報記録装置 - Google Patents
情報記録方法及び情報記録装置 Download PDFInfo
- Publication number
- WO2004112010A1 WO2004112010A1 PCT/JP2004/002828 JP2004002828W WO2004112010A1 WO 2004112010 A1 WO2004112010 A1 WO 2004112010A1 JP 2004002828 W JP2004002828 W JP 2004002828W WO 2004112010 A1 WO2004112010 A1 WO 2004112010A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- recording
- recording power
- information
- test
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/006—Overwriting
- G11B7/0062—Overwriting strategies, e.g. recording pulse sequences with erasing level used for phase-change media
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
- G11B7/1267—Power calibration
Definitions
- the present invention relates to an information recording method and an information recording device for various recording media such as a CD-R, a CD-RW, a DVD-R, a DVD-RW, a DVD-RAM, and a DVD + RW.
- optical disc drive devices capable of self-recording such as CD-R drive devices
- CD-R drive devices have been put into practical use, and research has been conducted with the aim of achieving higher capacity and higher speed recording.
- the recordable optical disk medium include a write-once optical disk using a dye-based medium and the like, a rewritable disk using a magneto-optical medium and a phase change medium and the like.
- a semiconductor laser is used as a light source, and this laser light pulse-modulated by recording information is applied to a recording medium to form a recording mark.
- OPC Optimum Power Control
- the second is a method of evaluating using the modulation degree m of the reproduced signal (hereinafter, referred to as “ ⁇ method” as appropriate).
- ⁇ method a method of evaluating using the modulation degree m of the reproduced signal
- the modulation factor m is calculated according to Next, the change rate ⁇ of the modulation degree with respect to the recording power is calculated from the calculated modulation degree m and the recording power P at that time.
- a recording power Pt at which the rate of change ⁇ becomes a predetermined value ⁇ is determined, and a value obtained by multiplying this by a predetermined coefficient k is determined as the optimum recording power.
- optical disc recording methods such as CDs and DVDs use a mark edge recording method in which the length of the mark, which is suitable for high-density recording, carries information.
- a mark edge recording method in which the length of the mark, which is suitable for high-density recording, carries information.
- Accurate control of mark shape and edge position is required.
- a multi-pulse recording method in which a recording mark is formed by a pulse train divided into a plurality of recording pulses is widely used in order to make the mark shape uniform even if the mark length is different. That is, a uniform long mark is formed by connecting and forming the mark by repeating the heating and cooling cycle. This method has also been applied to dye-based write-once media.
- the additional recording pulse of the additional recording power Pwex is applied not only to the leading edge but also to the trailing edge, as shown in Figs. 8 (d) and (e).
- an additional recording power Pwex is added to the recording power of a specific pulse of the chinores (for example, the first pulse or the last pulse). These are also applied for controlling the recording mark edge position and controlling the recording mark shape.
- the test writing is performed while changing the recording power P w, and the optimum recording power P w is determined therefrom.
- An object of the present invention is to obtain an optimum value of each recording power in an information recording method or an information recording apparatus in which the recording power is converted to a multi-valued level by using the additional recording power, and to perform more accurate recording. It is an object of the present invention to provide an information recording method and an information recording device capable of performing the above.
- information is recorded by irradiating a recording medium with light modulated based on recording information from a light source to form a recording mark.
- predetermined first test data is test-written in a test writing area of the recording medium while irradiating recording power in a stepwise manner, and the optimum test signal is obtained from a reproduced signal of the recorded test writing data.
- the first to calculate the recording power A test writing step, setting the recording power to the calculated optimum recording power, and testing the recording medium while gradually changing the additional recording power to be added to a part of the recording power irradiation period.
- the recording power and the additional recording power are calculated separately by trial writing, and the information is recorded by this. Therefore, the recording mark shape and the mark position can be formed with high accuracy, and the recording can be performed with high accuracy. '
- the predetermined first test data is a data string excluding a predetermined specific pattern in the recording information. Therefore, since the first test data is a data sequence excluding the specific pattern, the variation in the average value level of the reproduction signal due to the optimization of the additional recording layer during the first test writing is suppressed. And the optimum recording power can be accurately calculated.
- the second test data includes a first data string composed of the first test data, and a second data obtained by repeating a predetermined specific pattern. It is a data string that repeats a column.
- the optimum recording power in the first test writing step is a modulation degree or a modulation degree of a reproduction signal in a region where the first test writing is performed. Calculated from the rate of change, and the optimum additional recording power in the second test writing step is calculated from the asymmetry of the reproduction signal in the area where the second test writing was performed.
- asymmetry means a ratio of a positive peak value and a negative peak value to an average value level of a reproduced signal.
- the optimum recording power and the optimum additional recording power can be accurately calculated according to each test data and recording medium.
- the second trial writing The optimum additional recording power in the step is a positive peak value and a negative peak value of the reproduced signal of the first data string with respect to the average value level of the reproduced signal of the second data string in the area where the second trial writing was performed. Is calculated from the ratio.
- the optimum recording power and the optimum additional recording power can be accurately calculated according to each test data and recording medium.
- the predetermined specific pattern is a minimum mark length of the recording information.
- the operation of the information recording method can be similarly exerted by the information recording device.
- the recording power and the additional recording power are trial-written.
- the information is recorded separately, and the information is recorded by this. Therefore, the recording mark shape and the mark position can be formed with high accuracy, and the recording with high accuracy can be performed.
- the average of the reproduction signal due to the fact that the additional recording power is not optimized at the time of the first test writing Variations in the value level can be suppressed, and the optimum recording power can be calculated accurately.
- the second test data is a data sequence in which a first data sequence composed of the first test data and a second data sequence in which a predetermined specific pattern is repeated are repeated. Therefore, the average value of the reproduced signal of each data string can be separated and detected easily and accurately, and the calculation accuracy of the optimum additional recording power can be improved.
- the optimum recording power and the optimum additional recording power can be accurately calculated according to each test data and recording medium.
- the optimum recording power and the optimum additional recording power can be accurately calculated according to each test data and recording medium.
- the minimum mark length having a large variation sensitivity of the average value of the reproduction signal with respect to the additional recording power is repeated, so that the optimum additional recording power can be easily and accurately calculated. it can.
- Figure 1 is a plot click diagram showing a schematic configuration example of an optical information recording apparatus of an embodiment of the present invention
- FIG. 2 is an explanatory diagram relating to the PCA area and the test writing method.
- FIG. 3 is a characteristic diagram showing an eye diagram of a reproduction signal.
- FIG. 4 is a waveform chart showing an example of a light emission waveform.
- FIG. 5 is a characteristic diagram showing a recording mark and a reproduction signal S rf at that time when the recording power P w is optimal and the additional recording power P wex is not optimal.
- FIG. 6 is a schematic flowchart illustrating an example of the test writing process control.
- FIG. 7 is an explanatory diagram showing an example of a test pattern.
- FIG. 8 is a waveform chart showing a modified example of an applicable light emission waveform.
- FIG. 1 is a block diagram showing a schematic configuration example of the optical information recording device.
- the recording medium 1 used in this optical information recording device is a recordable recording medium (for example, CD-R, CD-RW, DVD-R, DVD-RW, DVD + R, DVD + RW, DVD).
- -Optical disks such as RAM, MD, and MO).
- the spindle motor 2 for rotating the recording medium 1 is controlled so as to have a constant linear velocity (CLV) or a constant angular velocity (CAV) in accordance with a signal supplied from the thermocontroller 3.
- the optical pickup (PU) 4 irradiates light emitted from a semiconductor laser (LD) as a light source to the recording medium 1 to record information, and receives reflected light from the recording medium 1 and converts it into a light receiving signal.
- LD semiconductor laser
- the light source receives the reflected light and It consists of a light receiving element for conversion, an optical system, and an actuator.
- the optical pickup 4 is also provided with a monitor light receiving unit that monitors a part of the light emitted from the light source, and the output light signal controls fluctuations in the amount of emitted light from the light source.
- a tilt detection light receiving unit for detecting a tilt (tilt) of the recording medium 1 with respect to the irradiation light may be provided.
- the light receiving signal processing unit 5 receives light receiving signals from various light receiving units arranged in the optical pickup 4 and performs various signal processing.
- An actuator that generates a reproduction signal Srf from the received light signal and emits light within a specified error at all times due to fluctuations such as surface deflection and radial deflection of the track caused by rotation of the recording medium and body 1 together with the servo controller 3.
- Drive and control focus servo control and track servo control). Therefore, a servo error signal S sv is generated from the received signal and supplied to the servo controller 3.
- the optical pickup 4 moves in the radial direction of the recording medium 1 and performs a seek operation so that a desired position is irradiated with a light spot.
- the servo controller 3 also performs functions such as seek control, rotation control and tilt control of the recording medium 1 in accordance with address information recorded in the recording medium 1 in advance.
- the recording medium 1 is formed in advance with a sample whose recording track meanders at a predetermined frequency, and the light receiving signal processing unit 5 also generates a wobble signal Swbl from which the wobble component is extracted. Based on the wobble signal Swbl, the wobble signal processing unit 6 performs rotation control, detection of address information, and generation of a recording clock WCK serving as a reference clock for recording.
- the reproduction signal processing unit 7 performs demodulation according to a predetermined modulation scheme rule of the recording medium 1 reproducing the reproduction signal Srf. Also, the recovered clock is extracted by the built-in PLL circuit. The demodulated data is supplied to the controller 8.
- the encoder 9 modulates the recording information supplied from the controller 8 according to a predetermined modulation scheme rule, and supplies recording data Wdata. At this time, it is generated based on the recording clock WCK.
- the EFM + modulation method is used, and the pulse length of the recording data Wdata is 3T to: 1T, 14 ⁇ ( ⁇ is the period of the recording clock WCK). .
- the LD driver 10 drives the light source LD according to the recording data Wdata and the recording clock WCK. Modulate with a predetermined optical waveform. Irradiation power and optical waveform information are set by the controller. Also, a monitor light receiving signal is input from the light receiving signal processing unit 5, and based on the monitor light receiving signal, control is performed so that the amount of light emitted from the light source LD becomes a desired value (so-called APC (Automatic Power Control) control is performed). .
- APC Automatic Power Control
- the recording medium 1 is provided with a PCA (Power Calibration Area-Test Write Area) 21 in a predetermined area (for example, the innermost peripheral part).
- PCA Power Calibration Area-Test Write Area
- OPC Optimum Power Control
- one trial write is performed using, for example, one ECC block which is a recording information unit (one ECC block consists of 16 sectors). Perform test writing while changing the recording power.
- the reproduced signal Srf in the area where the test writing has been performed is as shown in FIG. 2 (c), and the 0? ⁇ detection unit 11 sets the maximum value I pk and minimum value of each sector of the reproduced signal S rf to the minimum value.
- Figure 3 is an example of the eye diagram of the reproduced signal Srf.
- the controller 8 detects these values by reproducing the test-written area, performs a predetermined calculation from these values, and calculates an optimum recording power. Details of the calculation operation will be described later.
- test signal generator 12 generates test write data (test pattern) when performing test writing.
- the test write data is supplied to the encoder 9, and at the time of test write, the data is selectively output and supplied to the LD drive unit 10.
- the controller 8 controls the entire apparatus by transferring recording / reproducing information to / from a host computer (not shown) and performing command communication, in addition to the functions described above and processing control described later.
- FIG. 4A shows the recording clock WCK
- FIG. 4B shows the recording data Wdata
- FIG. 4C shows the optical waveform when the recording data Wdata has a mark length of 3T.
- the irradiation power is set to be the bottom power Pb, the recording power Pw, and the additional recording power Pwex, respectively.
- Fig. 4 (b) (c) The broken line in the middle indicates the case where the mark length is 4 T ⁇ : L 1 T.
- Fig. 4 (d) is a recording mark formed by the optical waveform of Fig.
- Fig. 5 (a) shows the recording mark when the recording power Pw is optimal and the additional recording power Pwex is not optimal (assuming it is too low)
- Fig. 5 (b) shows the playback signal Srf at that time. Is shown. Due to the irregular shape of the leading edge of the recording mark, the reproduced signal Srf changes from the ideal state (dotted line) as shown in the figure, and the average value of the reproduced signal fluctuates as Idc, (dashed line). On the other hand, the maximum value I P k and the minimum value I bt hardly fluctuate.
- An example of processing control of a recording method suitable for the recording medium 1 executed by the controller 8 having the microphone opening computer configuration under such conditions will be described with reference to a flowchart shown in FIG. FIG.
- FIG. 6 is a flowchart showing an algorithm for calculating the optimum recording power Pw (opt) and the optimum additional recording power P (opt) in the test writing process among the processing controls related to the recording operation. .
- Such a calculation of the recording power is performed in preparation for the start of the recording of the information.
- the second trial writing step or second trial writing means for calculating (opt) is established.
- step S1 a first test pattern used in the first trial writing process is generated.
- the first test pattern is recorded data Wdata obtained by modulating normal data (for example, arbitrary data or fixed data supplied from the controller 8) by the encoder 9.
- step S2 the first test pattern is recorded in the test writing area while changing the recording power P w for each sector.
- step S3 the test write area in step and step 2 is reproduced, and the power at which the sector where the reproduction signal S rf is best obtained is recorded is set as the optimum recording power P w (opt). And calculate.
- the following example can be applied to evaluate the quality of the reproduced signal.
- the maximum value Ipk, the minimum value Ibi :, and the average (DC value) Idc of the reproduction signal Srf in each sector are detected. And for each sector, the maximum value Ipk, the minimum value Ibi :, and the average (DC value) Idc of the reproduction signal Srf in each sector are detected. And for each sector, the maximum value Ipk, the minimum value Ibi :, and the average (DC value) Idc of the reproduction signal Srf in each sector are detected. And for each sector,
- the power of recording the sector closest to 0 may be calculated as the optimum recording power Pw (opt).
- the second is a method using the rate of change ⁇ of the modulation m of the reproduced signal with respect to the recording power as an index. As described above, the maximum value Ipk and the minimum value Ibt of the reproduction signal Srf in each sector are detected. And
- the modulation factor m is calculated according to
- the rate of change ⁇ of the modulation degree m with respect to the recording power is calculated from the calculated modulation degree m and the recording power Pw at that time.
- a recording power Pt at which the rate of change 1 / becomes a predetermined value ⁇ is obtained, and a value obtained by multiplying this by a predetermined coefficient k is determined as the optimum recording power Pw.
- predetermined values ⁇ t and coefficient k values predetermined for each type of recording medium 1 and each recording device are used.
- a general approximation method such as a polynomial approximation may be used as the approximation method, and a second-order or higher-order approximation expression agrees well with the measured value.
- Equation (5) is obtained.
- the optimum recording power Pw (opt) is calculated by calculating the positive solution Pw + of the equation (5).
- a combination of these methods may be used, and a jitter detection unit may be provided to calculate the recording power with the minimum jitter.
- a second test writing process (second test writing means) in steps S4 to S6 is performed.
- step S4 a second test pattern used in the second test writing process is generated.
- Such a second test pattern is supplied from the encoder 9 as recording data Wdata.
- step S5 the recording power Pw is set to the optimum recording power Pw (opt) calculated in step S3, and the second test pattern is trial-written while changing the additional recording power Pwex for each sector. Record in the area.
- the variable range of the additional recording power Pwex is centered on a value corresponding to the optimum recording power Pw (opt).
- this test writing area may overwrite the first test writing area in step S2, or the second test writing may be performed after erasing once. May go.
- the first trial writing may be performed in the first half of the trial writing area (for example, one ECC block) that can be used at a time, and the second trial writing may be performed in the second half.
- the recording medium 1 is an area following the test writing area in step S2.
- step S6 the area that has been trial-written in step S5 is reproduced, and the phase in which the sector where the reproduction signal Srf is best obtained is recorded is calculated as the optimum additional recording power P wex (opt).
- the reproduced signal Srf is obtained as shown in FIG.
- the asymmetry 3 is calculated from ⁇ 3-[(Ipk-Idc3)-(Idc3-Ibt)] / (Ik-Ibt) (6).
- the power of recording the sector whose asymmetry 33 is closest to 0 may be calculated as the optimum additional recording power Pwex (opt).
- the additional recording power Pwex is not an appropriate value
- the average value Idc of the reproduction signal Srf changes, and the asymmetry also changes.
- the fluctuation of the average value becomes more noticeable in a pattern having a shorter mark length. Therefore, by using the 3T repetition pattern, which is the minimum mark length, as a test pattern, the detection in step S6 can be made easier and more sensitive, and the accuracy of calculating the optimum additional recording power can be improved. I have.
- the maximum value I pk and the minimum value I bt are not affected even if the amount of reflected light fluctuates due to fluctuations in the reproduction power or the reflectance of the recording medium.
- the asymmetry i33 calculated by the equation (6) is detected without being affected by the fluctuation at the same ratio.
- the first test pattern TP 1 and the 3T repetition pattern 3TP are repeated at a predetermined cycle in synchronization with the sector during test writing, so that the average value is synchronized with the sector during playback. If the detection is performed, the average value I dc 3 can be easily detected.
- the repetition period of the first test pattern TP1 and the 3T repetition pattern 3TP should be set in consideration of the average detection band of the reproduced signal.
- the first test pattern may be a data string composed of a mark length of a predetermined length or more (for example, a mark length of 4T or more).
- asymmetry ⁇ is used as a criterion for evaluating a reproduced signal.
- a recording waveform as shown in FIGS. 8 (c) to 8 ( e ) is a waveform in which a pulse of additional recording power Pwe is added to the leading edge and the trailing edge of the recording pulse.
- the optical waveform 2 in Fig. 8 (d) adds the additional recording power Pwex to the first and last pulses in the multipulse, and the optical waveform 3 in Fig. 8 (e) uses the erase power Pe.
- the recording is performed with the additional recording power Pwex added to the second half of the first pulse and the last pulse, and the recording power Pw and the additional recording power Px are similarly calculated. The optimal value of can be calculated.
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- Optical Recording Or Reproduction (AREA)
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Abstract
Description
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Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04717829A EP1635338A4 (en) | 2003-06-13 | 2004-03-05 | METHOD AND DEVICE FOR RECORDING DATA |
| US10/938,945 US7164637B2 (en) | 2003-06-13 | 2004-09-13 | Information recording method and information recording apparatus |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003-168615 | 2003-06-13 | ||
| JP2003168615A JP2005004905A (ja) | 2003-06-13 | 2003-06-13 | 情報記録方法及び情報記録装置 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/938,945 Continuation US7164637B2 (en) | 2003-06-13 | 2004-09-13 | Information recording method and information recording apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004112010A1 true WO2004112010A1 (ja) | 2004-12-23 |
Family
ID=33549337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/002828 Ceased WO2004112010A1 (ja) | 2003-06-13 | 2004-03-05 | 情報記録方法及び情報記録装置 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7164637B2 (ja) |
| EP (1) | EP1635338A4 (ja) |
| JP (1) | JP2005004905A (ja) |
| CN (1) | CN100367371C (ja) |
| TW (1) | TWI284894B (ja) |
| WO (1) | WO2004112010A1 (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7480223B2 (en) * | 2004-01-30 | 2009-01-20 | Ricoh Company, Ltd. | Recording and reading method and device for dye based write-once DVD medium |
| JP2007035087A (ja) * | 2005-07-22 | 2007-02-08 | Pulstec Industrial Co Ltd | 光ディスクのための識別情報記録装置および識別情報記録方法 |
| JP2008262607A (ja) | 2007-04-10 | 2008-10-30 | Funai Electric Co Ltd | 光ディスク記録装置 |
| JP2009151862A (ja) * | 2007-12-20 | 2009-07-09 | Hitachi-Lg Data Storage Inc | 光ディスク装置及びオーバーライトパワー制御方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08203080A (ja) * | 1995-01-31 | 1996-08-09 | Canon Inc | ライトテスト方法及び光学的情報記録再生装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0644567A (ja) * | 1992-07-23 | 1994-02-18 | Seiko Epson Corp | 光メモリ装置及びその記録再生制御方法 |
| EP0725397B1 (en) * | 1995-01-31 | 1999-09-15 | Canon Kabushiki Kaisha | Write test method for pit edge recording method and optical information recording/reproducing apparatus utilizing the same test method |
| US6243339B1 (en) * | 1997-08-12 | 2001-06-05 | U.S. Philips Corporation | Method and device for writing optical record carriers |
| JP3863331B2 (ja) * | 1999-12-24 | 2006-12-27 | 株式会社リコー | 光学的情報記録再生方法及び光学的情報記録再生装置 |
| JP3632849B2 (ja) * | 2001-12-25 | 2005-03-23 | シャープ株式会社 | 試し書き記録制御方法及び試し書き記録制御装置 |
-
2003
- 2003-06-13 JP JP2003168615A patent/JP2005004905A/ja active Pending
-
2004
- 2004-03-05 EP EP04717829A patent/EP1635338A4/en not_active Withdrawn
- 2004-03-05 WO PCT/JP2004/002828 patent/WO2004112010A1/ja not_active Ceased
- 2004-03-05 CN CNB2004800161506A patent/CN100367371C/zh not_active Expired - Fee Related
- 2004-03-12 TW TW093106742A patent/TWI284894B/zh not_active IP Right Cessation
- 2004-09-13 US US10/938,945 patent/US7164637B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08203080A (ja) * | 1995-01-31 | 1996-08-09 | Canon Inc | ライトテスト方法及び光学的情報記録再生装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1635338A1 (en) | 2006-03-15 |
| EP1635338A4 (en) | 2008-09-17 |
| US7164637B2 (en) | 2007-01-16 |
| CN1806278A (zh) | 2006-07-19 |
| CN100367371C (zh) | 2008-02-06 |
| TWI284894B (en) | 2007-08-01 |
| JP2005004905A (ja) | 2005-01-06 |
| TW200428375A (en) | 2004-12-16 |
| US20050041548A1 (en) | 2005-02-24 |
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