CN1211786C - Method for detrmining recording-power of radiation beam used recording information on recording medium - Google Patents
Method for detrmining recording-power of radiation beam used recording information on recording medium Download PDFInfo
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Abstract
The present invention provides a method for determining the recording power of a radiation beam, and the recording power of the radiation beam is used for recording information on a recording medium at an operating speed set by a user. According to a good specific embodiment, the method of the present invention has the following steps: firstly, the optimal recording power corresponding to each testing speed is determined under the condition of continuous operation at a plurality of testing speeds; then, a curve fitting treatment is carried out for the corresponding optimal recording power and the a plurality of testing speeds to work out a speed function; finally, the speed set by the user is substituted in the speed function to work out the recording power of the radiation beam.
Description
Invention field
The present invention is about a kind of information recording/regenerating system, this system utilizes a radiation beam to record the information on the recording medium and/or information extraction on this recording medium, for example, optical information recorder/playback system recorded information is on the optic informating recording medium and/or information extraction from this optic informating recording medium.And especially, the present invention is about the decision of the recording power of this radiation beam, and the recording power of this radiation beam that is determined is used for recording the information on this recording medium under writing speed operation very fast.
Background technology
Optic informating recording medium and other similar recording medium, the actual radiation beam (for example, laser beam) that utilizes comes recoding/reproduction information.When informational needs is recorded on an optic informating recording medium or other the similar recording medium, and/or from this optic informating recording medium during information extraction, just must use an information recording/regenerating system that can launch radiation beam, that is, need to use optical information recorder/playback system or other similar systems.
With the information offical record before on optic informating recording medium or other the similar recording medium; usually can carry out a test record program earlier, and then determine this radiation beam and be used to record the information in optimal recording power on this optic informating recording medium or other the similar recording medium.Be dependent on radiation beam (for example, laser beam) when writing down when information, disclose the technical scheme that many technology contents relate to the optimal recording power of setting radiation beam, for example, U.S. Patent number the 5th, 703, No. 841, U.S. Patent number the 5th, 974, No. 021, No. the 6th, 125,093, U.S. Patent number and U.S. Patent number the 6th, 272, No. 100.But be noted that, be used to record the information in the technology formerly of the optimal recording power on the optical record medium, can only be applied under the situation of low-speed record speed about setting.
Utilize radiation beam to record the information in the information recording/regenerating system of recording medium now all towards promoting writing speed and reproduction speed development, particularly writing speed.Under high-speed record speed operation situation, for example, under the operational circumstances of the writing speed that is higher than 24 times of speed, unsettled situation can take place in the drive system of this information recording/regenerating system, and for example, vibrations etc. can take place system's inner main axis motor.Therefore, under high-speed record speed operation situation, determine that an optimal recording power that records the information in the radiation beam of information medium is very difficulty or even impossibility.Yet under high-speed record speed operation situation, it is necessary carrying out the test record program, more or less to guarantee the quality of recorded information.By to the understanding of technology formerly, can find out current a kind of new method that still needs, be used under the high-speed record speed operational circumstances of (for example, being higher than the writing speed of 24 times of speed) recording power of the radiation beam of decision recorded information on recording medium.Purpose of the present invention promptly meets above-mentioned demand.
Summary of the invention
About the technology formerly of the decision of the optimal recording power that records the information in the radiation beam on the carrier (for example, CD), when carrier under the high-speed record speed operation, be used to determine the technology formerly of best power all can't use.Yet under the situation of high-speed record speed operation, the test data sheet program still must be carried out, to guarantee the quality of recorded information.
Purpose of the present invention is promptly providing a kind of method that is used to determine the recording power of a radiation beam, and the speed operation that the recording power of this radiation beam is used for setting by a user is to write down recording medium with information.And especially, this user's setting speed is a writing speed very fast, for example, is higher than the writing speed of 24 times of speed.
According to a preferred embodiment of the present invention, the method that provides a kind of usefulness to decide recording power, this recording power is used to record the information in a recording medium under user's setting speed operational circumstances.At first, successively under a plurality of test speed operational circumstances, determine the optimal recording power of corresponding each test speed respectively.Then, the processing that carries out curve fitting of the optimal recording power that this is corresponding and these a plurality of test speeds, and then try to achieve a velocity function.Then, the step whether this user's setting speed equates with any one test speed in these a plurality of test speeds is judged in execution.If the result of this determining step promptly determines the recording power of corresponding this radiation beam of recording power of the test speed equal with this user's setting speed for certainly.If the result of this determining step then by with in this this velocity function of user's setting speed substitution, calculates the recording power of this radiation beam for negating.By method of the present invention, particularly when this user's setting speed be very fast during writing speed, can be easily and determine reliably for this user's setting speed operation recording power of recorded information down.
The present invention also provides a kind of information recording/regenerating system, this system can determine the recording power of a radiation beam, the recording power of this radiation beam is used for by the speed operation that a user sets information being write down recording medium, and provide a plurality of test speeds in advance, this system comprises: a record processing unit, this record processing unit comprises a radiation generation circuit, is used for recording the information on this recording medium when existing record power changes; One extracts treating apparatus, extracts treating apparatus and comprises a radiation detector, is used for receiving the radiation beam of reflection from this recording medium during the information record; One controller, this controller is connected to this record processing unit and this extraction treating apparatus, be used to analyze the radiation beam that this reflects, and then be evaluated at information record usefulness under the operational circumstances of this test speed of operating, up to the optimal recording power that determines the corresponding test speed of operating, and the processing that carries out curve fitting of optimal recording power that subsequently should correspondence and these a plurality of test speeds, and then produce a velocity function; One determination device, this determination device is connected to this controller, is used to receive the input of this user's setting speed, and by with in this this velocity function of user's setting speed substitution, calculates this recording power.
Can be further understood by following detailed Description Of The Invention and appended accompanying drawing about the advantages and spirit of the present invention.
Description of drawings
Fig. 1 is a functional part figure, the structure and the function element of the adoptable information recording/regenerating of expression the present invention system 1.
Fig. 2 is a process flow diagram, and expression is according to a test record program of preferred embodiment of the present invention.
Fig. 3 is a test result curve map, the test result that is disclosed among the figure is the result who is applied in gained on three kinds of common CD-R CDs according to the test record program of preferred embodiment of the present invention, and the curve fit process in the wherein test record program has been the generation exponential function.
Fig. 4 is a test result curve map, the test result that is disclosed among the figure is the result who is applied in gained on three kinds of common CD-R CDs according to the test record program of preferred embodiment of the present invention, and the curve fit process in the wherein test record program has been the generation polynomial function.
Fig. 5 is a test result curve map, the test result that is disclosed among the figure is the result who is applied in gained on three kinds of common CD-R CDs according to the test record program of preferred embodiment of the present invention, and the curve fit process in the wherein test record program is to be handled by the built-in anticipation function of Mircrosoft ' s Excel.
Embodiment
Please refer to shown in Figure 1ly, Fig. 1 is the structure and the function element of expression the present invention adoptable information recording/reproducer 1.This information recording/regenerating system 1 is a typical optical information recorder/playback system, and the optical signalling (information graphic) (Information pattern) that will have appropriate format (for example, standard CD form or RDAT form) is recorded on the recording medium 5.This recording medium 5 can be a kind of recording medium that the radiation sensing layer of being made up of phase-transition material or dyestuff etc. is provided, and this sensing layer also provides servo track, prepares the usefulness for the recorded information figure.
As shown in Figure 1, this information recording/regenerating system 1 mainly comprises a record processing unit and an extraction treating apparatus.This record processing unit comprises a recording impulse generation circuit 17.This extraction treating apparatus comprises one and extracts circuit 14, and this extraction circuit 14 will become the information of setting from the conversion of signals of the extraction of fluorescence detector 25.Other function element of this information recording/reproducer 1 are illustrated among Fig. 1 equally, comprise a laser instrument 19, lens combination (22 and 24), this fluorescence detector 25, a fluorescence detector 26, a test record testing circuit 13, a laser driver 18, a test record information generating circuit 31 and a controller 40.
About order and the information from a main frame (in the drawings not shown), these controller 40 places that are modulated at of the information that the decoding of this order and this are used to write down carry out, and convert the numerical code row corresponding to this modulation program subsequently to.Compositor 32 is used to this system 1 to produce standard time sequence as an oscillator.In above-mentioned technical scheme, recording method can be used and be called as regional fixed angular speed method (ZonedConstant Angular Velocity, ZCAV), it is by changing the standard time sequence of each location, and, inner ring and outer ring circumference place in this recording medium 5 obtain approximate recording density, and then obtain the recording method of big storage volume.The oscillation frequency of this compositor 32 changes according to the zone.
When this recording medium 5 is replaced, judge the kind (or pattern) of recording medium, and set symbol is should the record of type records medium and extraction conditions.In one embodiment, each condition all can be stored in the permanent memory of this controller 40.The result that the response record medium kind is judged, when this record processing unit and this extraction treating apparatus requirement, above-mentioned record and extraction conditions are promptly set and are finished.
One servomechanism is controlled the position of the luminous point of an executive logging and information extraction.In this servomechanism, focus error signal and tracking error signal derive from the cylinder lenses (not shown), and this cylinder lenses is placed in before this fluorescence detector 25, and this fluorescence detector 25 is divided into four parts.
Before the regular information of record, owing to have various deviations, test record information must be recorded on this recording medium 5, with the deviation of detection record sensitivity etc.Above-mentioned various deviations comprise deviation that the characteristic changing of deviation along with the film thickness of different disc record medias, deviation that environment temperature causes and this record processing unit causes etc. usually.As above statement, so the practice has been to improve the cooperate degree of this recording medium 5 and this information recording/regenerating system 1.
This test record information translation becomes the numerical code row of corresponding demodulation process, and is produced by this test record information generating circuit 31.Except the information of modulation treatment, this test record information generating circuit 31 may produce other information, and this test record testing circuit 13 together moves with this his information of planting.Therefore, corresponding to any recording density, use this test record program of any test record recording of information method can carry out in the information recording/regenerating of the present invention system.
Correspondence is all imported at this selector switch 16 from the numerical code of these controller 40 modulated regular information and from the numerical code of this test record information generating circuit 31, and the control signal by this controller 40 is switched, and makes it corresponding to test record program or regular logging program.Sum from this selector switch 16 is input to this recording impulse generation circuit 17, and is converted to the recording impulse row, and then the length of controlling recording mark and width.
These recording impulse row are input to this laser driver 18.The record current that this laser instrument 19 is sent from this laser driver 18 is energized into high power state.Light beam scioptics group 22 convergences of sending from this laser instrument 19 become parallel rays, again by prism 23.Light by this prism 23 is existing to be focused on this recording medium 5 by this lens combination 24, and then writes down a pair of record mark that should the numerical code row.This high-frequency current summation circuit 33 provides and is used for reducing the laser noise that this laser instrument 19 is caused, and considers the life-span of laser instrument, and this high-frequency current summation circuit 33 is closed in record and elimination program process sometimes.
Subsequently, this laser instrument 19 is energized into the low-power swing state, and the light that inspires is mapped on this recording medium 5.Optical path from the light of this recording medium 5 reflections is separated by this prism 23, and enters fluorescence detector 25 (being preferably visual detector).This light beam at these fluorescence detector 25 places after opto-electronic conversion becomes signal, after the signal of conversion amplifies by prime amplifier 15, be input to again and extract circuit 14.This extraction circuit 14 comprises a waveform equalizer, an automatic gain control circuit and a binary translation circuit etc.And this conversion of signals of importing becomes binary signal.
(Phase Locked Loop, PLL) circuit 12, with self-sequencing to be input to the phase-locked loop from the binary signal of this extraction circuit 14.One extracts clock signal and is input to kam-frequency circuit 11 synchronously and from the binary signal of this PLL circuit 12 with it, with authentication information.Information signal after this is differentiated is exported by this kam-frequency circuit 11, and then is input to this controller 40, and to this information and executing demodulation.
In the test record program process, arrive this test record testing circuit 13 from this extraction analog signal transmission of extracting circuit 14.Next detailed description is made for recording geometry that the test record program uses and is the combination of recording/reproducing system at the loosest figure of the most intensive figure of highest frequency and low-limit frequency.The most intensive figure of the signal that is extracted is detected by this test record testing circuit 13 with the most central level (level) of loose figure.Difference between the central level is input to analog/digital converter (A/D) in this controller 40.When this difference was almost 0, its recording power was judged as optimal recording power, and carried out regular record subsequently.Therefore, use this test record program, set optimal recording power constantly, and can allow this record obtain having the record mark of pinpoint accuracy.
Fig. 2 represents the process flow diagram according to the test record program of a preferred embodiment of the present invention.The purpose of this test record program has been the decision recording power, and this recording power is used for recording the information in recording medium under user's setting speed operational circumstances.By test record program according to the present invention, can be easily and determine recording power reliably at this user's setting speed, be writing speed very fast particularly at this user's setting speed, for example, be higher than the writing speed of 24 times of speed.According to the test record program of a preferred embodiment of the present invention, execution in step S60 at the beginning sets as initial condition etc.Then whether execution in step S61 inserts with inspection record medium 5, if this recording medium 5 is not put as yet and packed into, then this information recording/regenerating system 1 still rests on holding state.After in these recording medium 5 imbedding systems, execution in step S62 immediately.In step S62, the initial extraction condition enactment is extracted each element in treating apparatus, this servo driving circuit 35 and this record processing unit to this, comprise this high-frequency current summation circuit 33, laser driver 18, power monitoring circuit 34 etc.Then, this recording medium 5 is rotated, and the light emission of this laser instrument 19 is opened.Then start and be used for controlling luminous point avoids departing from recording surface (vertical direction of Fig. 1) on this recording medium 5 automatic focusing (AF) function.Then, judge the kind of inserting this intrasystem recording medium, according to the kind of this recording medium, set the record condition and the extraction conditions of this record processing unit and this extraction treating apparatus once more, and begin to follow the tracks of with the eccentric direction and the radial direction of control luminous point in this recording medium 5.
Then, carry out N test record program (P1 is to PN) that continues in turn, to determine N optimal recording power, wherein N is a natural number.And, each optimal recording power to should N a test speed in the test speed.In program P1, execution in step P11 at the beginning is in first test speed this recording medium that rotates by operation.Follow execution in step P12, to change current of record power.When changing this current of record power, be recorded on this recording medium with being about to detecting information.Whether execution in step P13 subsequently is judged as first optimal recording power that should first test speed to determine this current of record power.The execution of decision optimal recording power for instance, can be finished by detection record situation deviation signal, and this record situation deviation signal is the most intensive figure and the difference of the central level of loose figure.When record situation deviation signal is departing from the allowed band of extracting signal, and when record situation deviation signal was almost 0, this recording power then was judged as the pairing optimal recording power of this test speed of operating.
If the result of step P13 is for negative, the execution in step that continues P12 and step P13 are till determining first optimal recording power.If the result of step P13 then carries out next test record program, to determine next optimal recording power for certainly.With identical method, determine other optimal recording power in other programs (P2 is to PN) respectively.For the test record program is shown simply, in Fig. 2, only draw first test record program P1 and last test record program PN.After finishing this N test record program, all oneself determines N optimal recording power.Then execution in step S63 is used for this N optimal recording power and this N test speed are done curve match (Curve fitting) processing, and then tries to achieve a velocity function.Step S64 then carries out, to receive the input of this user's setting speed.
About decision at the recording power of user's setting speed, by a practice, execution in step S66 behind step S64.In step S66, the velocity function that this user's setting speed is tried to achieve by substitution determines the recording power at this user's setting speed by this.By another different practices, whether execution in step S65 behind step S64 equates with any one test speed in this N test speed to judge user's setting speed.If the result of step S65 is for negating, execution in step S66 then with this this velocity function of user's setting speed substitution, and then calculates recording power at this user's setting speed.If the result of step S65 is certainly, then execution in step S67.In step S67, the test speed that equates with this user's setting speed promptly determines to be its pairing optimal recording power at the recording power of this user's setting speed.
In one embodiment, the generation step of this velocity function and can in determination device shown in Figure 1 42, carry out at the setting step of the recording power of this user's setting speed.In another specific embodiment, the generation step of this velocity function and can in controller shown in Figure 1 40, carry out at the setting step of the recording power of this user's setting speed.
In one embodiment, this velocity function is an exponential function.Be applied in three kinds of CD-R CDs buying from market easily respectively according to the test record program of preferred embodiment of the present invention: it is that CD-R CD, CMC Cinema Magnetique Communication of sg80 produces CD-R CD and the Ritek company that model is ss80 and produce the CD-R CD that model is js80 that AMT company produces model.These three kinds of dishes all can be under high-speed record speed operation situation recorded information.The operation of above-mentioned test record program is carried out with similar information recording/regenerating system 1 shown in Figure 1.Fig. 3 is the test result that test record program according to the present invention is applied in above-mentioned three kinds of CDs.The curve that each bar is tried to achieve through the curve process of fitting treatment shown in Fig. 3 all mates a certain index function.In above-mentioned measuring technology scheme, be used to determine the corresponding test speed that optimal recording power adopted and all be lower than 24 times of speed recording speed.Generally speaking, 24 times of greatest limits that speed recording speed is existing information recording/regenerating system its writing speed when the technology formerly at the application settings optimal recording power.
Be shown in Fig. 3 equally, detect the dominant record power of this information recording/regenerating system under each test speed operation respectively.Dominant record power is commonly used to eliminate the detecting information that has write down.Therefore, the optimal recording power of corresponding each writing speed or the recording power of trying to achieve with curve fit process ought to be less than to dominant record power that should writing speed.As shown in Figure 3, these three kinds of recording powers that CD is determined according to the present invention all can satisfy above-mentioned requirement.
With the similar practice of above-mentioned specific embodiment, in another specific embodiment, the velocity function of being tried to achieve in the above-mentioned test record program is a polynomial function, that is in above-mentioned test record program, the optimal recording power that the is determined purpose of handling that is used to carry out curve fitting has been to obtain to meet polynomial curve.Result through polynomial curve fitting processing gained during above-mentioned test record is handled is shown in Fig. 4, and each curve all meets a specific second order polynomial.
In another specific embodiment, the velocity function of being tried to achieve in the above-mentioned test record program is tried to achieve by the interior forecast function of building in the application software (Forecast function), for example, try to achieve velocity function by the built-in forecast function of Microsoft ' s Excel.With the similar practice of above-mentioned test record program, in the test record program, each curve is made the curve process of fitting treatment with the built-in forecast function of Excel, and this test record procedure result is shown in Fig. 5.
Please refer to table 1, table 1 is the sg80 CD logging program and be shown in the result of Fig. 3 to Fig. 5 after tested that compiles AMT.Optical information also is recorded in according to the recording power that each determines on the sg80 CD of AMT, and read the information that is write down subsequently, uses the fiduciary level of the information that affirmation writes down, that is confirms the quality of its recorded information of recording power of being determined.Above-mentioned recorded information is also listed in table 1 through confirming the gained fiduciary level.As shown in table 1, on the one hand, when user's setting speed is a slower writing speed, that is when being equal to or less than 24 times of speed recording speed, the method according to this invention directly detects optimal recording power, and determines this optimal recording power to be the recording power of sg80 CD under this user's setting speed operational circumstances of AMT.On the other hand, when user's setting speed is higher than writing speed, that is be higher than 24 times of speed recording speed, it is the recording power of sg80 CD under this user's setting speed operational circumstances of AMT that the method according to this invention is used the recording power of obtaining as calculated.Learn that by technology formerly under high-speed record speed operation situation, it is suitable difficulty that the desire decision records the information in optimal recording power on the optical-information intermediat medium.By method provided by the present invention, the sg80 CD of AMT is from low speed to high speed under the writing speed operational circumstances, all can be easily and determine recording power reliably.
Please refer to table 2, table 2 is the ss80 CD logging programs and be shown in the result of Fig. 3 to Fig. 5 after tested that compile CMC.Optical information also is recorded in according to the recording power that each determines on the ss80 CD of CMC, and read the information that is write down subsequently, uses the fiduciary level of the information that affirmation writes down, that is confirms the quality of its recorded information of recording power of being determined.Above-mentioned recorded information is also listed in table 2 through confirming the gained fiduciary level.As shown in table 2, method provided by the present invention can be easily and the ss80 CD that determines CMC reliably required recording power under the writing speed operational circumstances from low speed to high speed.
Please refer to table 3, table 3 is the js80 CD logging programs and be shown in the result of Fig. 3 to Fig. 5 after tested that compile Ritek.Optical information also is recorded in according to the recording power that each determines on the js80 CD of Ritek, and read the information that is write down subsequently, uses the fiduciary level of the information that affirmation writes down, that is confirms the quality of its recorded information of recording power of being determined.Above-mentioned recorded information is also listed in table 3 through confirming the gained fiduciary level.As shown in table 3, method provided by the present invention can be easily and the js80 CD that determines Ritek reliably from low speed to high-speed record speed operation situation under required recording power.With regard to technological standpoint, sincere method provided by the present invention goes for the optical-information intermediat medium of other kinds type in addition.
Implement example about CD in the preferred embodiment of the present invention, though only mention CD-R, but the present invention also can be embodied on the CD of other types widely, for example, and the CD of MD, MO, CD-RW, DVD-R, CVD-RW, DVD-RAM and the similar function of tool.Therefore, by the above detailed description of preferred embodiments, be to wish to know more to describe feature of the present invention and spirit, and be not to come category of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain various changes and equivalents thereof in the scope of the claim that the present invention will apply for.
Table 1
| Writing speed | Determining method | The recording power that is determined (mW) | Fiduciary level |
| 4 times of speed | A | 14.23 | Best |
| 8 times of speed | A | 21.93 | Best |
| 12 times of speed | A | 28.57 | Best |
| 16 times of speed | A | 34.03 | Best |
| 20 times of speed | A | 38.63 | Best |
| 24 times of speed | A | 42.30 | Best |
| B | 44.00 | Reliably | |
| C | 42.00 | Reliably | |
| D | 46.00 | Reliably | |
| 28 times of speed | B | 48.08 | Reliably |
| C | 44.48 | Reliably | |
| D | 51.84 | Reliably | |
| 32 times of speed | B | 52.26 | Reliably |
| C | 45.83 | Reliably | |
| D | 57.93 | Reliably | |
| 36 times of speed | B | 56.25 | Reliably |
| C | 46.14 | Reliably | |
| D | 64.03 | Reliably | |
| 40 times of speed | B | 60.08 | Reliably |
| C | 45.39 | Reliably | |
| D | 70.12 | Reliably | |
| A: by detecting optimal recording power | |||
| B: by with user's setting speed substitution certain index letter | |||
| C: by with the specific polynomial function of user's setting speed substitution | |||
| D: utilize the built-in forecast function of Excel | |||
Table 2
| Writing speed | Determining method | The recording power that is determined (mW) | Fiduciary level |
| 4 times of speed | A | 12.66 | Best |
| 8 times of speed | A | 19.31 | Best |
| 12 times of speed | A | 25.38 | Best |
| 16 times of speed | A | 31.56 | Best |
| 20 times of speed | A | 36.17 | Best |
| 24 times of speed | A | 39.60 | Best |
| B | 41.00 | Reliably | |
| C | 41.00 | Reliably | |
| D | 43.00 | Reliably | |
| 28 times of speed | B | 44.92 | Reliably |
| C | 44.75 | Reliably | |
| D | 48.72 | Reliably | |
| 32 times of speed | B | 49.04 | Reliably |
| C | 48.12 | Reliably | |
| D | 54.65 | Reliably | |
| 36 times of speed | B | 52.99 | Reliably |
| C | 50.92 | Reliably | |
| D | 60.58 | Reliably | |
| 40 times of speed | B | 56.79 | Reliably |
| C | 53.16 | Reliably | |
| D | 66.51 | Reliably | |
| The definition of A, B, C and D is identical with the definition described in the table 1 | |||
Table 3
| Writing speed | Determining method | The recording power that is determined (mW) | Fiduciary level |
| 4 times of speed | A | 13.31 | Best |
| 8 times of speed | A | 19.17 | Best |
| 12 times of speed | A | 25.54 | Best |
| 16 times of speed | A | 31.07 | Best |
| 20 times of speed | A | 36.17 | Best |
| 24 times of speed | A | 40.50 | Best |
| B | 40.00 | Reliably | |
| C | 41.00 | Reliably | |
| D | 42.00 | Reliably | |
| 28 times of speed | B | 43.81 | Reliably |
| C | 45.74 | Reliably | |
| D | 48.10 | Reliably | |
| 32 times of speed | B | 47.63 | Reliably |
| C | 49.98 | Reliably | |
| D | 53.86 | Reliably | |
| 36 times of speed | B | 51.27 | Reliably |
| C | 53.89 | Reliably | |
| D | 59.63 | Reliably | |
| 40 times of speed | B | 54.77 | Reliably |
| C | 57.46 | Reliably | |
| D | 65.39 | Reliably | |
| The definition of A, B, C and D is identical with the definition described in the table 1 | |||
Claims (14)
1. method that is used to determine the recording power of a radiation beam, the recording power of this radiation beam are used for the speed operation set by a user so that information is write down recording medium, and a plurality of test speeds are provided in advance, and this method comprises the following step:
(a) continue under these a plurality of test speed operational circumstances, determine the optimal recording power of one of test speed respectively should operating;
(b) processing that carries out curve fitting of optimal recording power that should correspondence and these a plurality of test speeds, and then produce a velocity function; And
(c) by with in this this velocity function of user's setting speed substitution, calculate this recording power.
2. the method for claim 1 in step (b) and (c), further comprises the following step:
(b1) judge whether this user's setting speed equates with any one test speed in these a plurality of test speeds, if negate, execution in step (c) then.
3. method as claimed in claim 2, wherein this user's setting speed is faster than all test speeds.
4. method as claimed in claim 2, if step (b1) further comprises the following step for affirming:
(b2) determine the test speed equate with this user's setting speed, the optimal recording power that determines corresponding determined test speed is the recording power of this radiation beam, and execution in step (c) not.
5. method as claimed in claim 4, wherein step (a) under the operational circumstances of these a plurality of test speeds, is carried out the following step respectively:
(a1) when existing record power changes, record the information on this recording medium;
(a2) step (a1) term of execution, be received from this recording medium radiation reflected bundle, analyze the radiation beam that this reflects, and then be evaluated at the information record usefulness under the operational circumstances of this test speed of operating;
(a3) analyze the laser beam that reflects, write the effect of record information when estimating under test speed, to operate; And
(a4) repeated execution of steps (a1) is to (a3), up to the optimal recording power that determines the corresponding test speed of operating.
6. method as claimed in claim 5, wherein this velocity function is the polynomial function of second order at least.
7. method as claimed in claim 5, wherein this velocity function is an exponential function.
8. method as claimed in claim 5 wherein produces this velocity function by the interior anticipation function of building in the application software.
9. information recording/regenerating system, this system can determine the recording power of a radiation beam, and the recording power of this radiation beam is used for by the speed operation that a user sets information being write down recording medium, and a plurality of test speeds are provided in advance, and this system comprises:
One record processing unit, this record processing unit comprise a radiation generation circuit, are used for recording the information on this recording medium when existing record power changes;
One extracts treating apparatus, extracts treating apparatus and comprises a radiation detector, is used for receiving the radiation beam of reflection from this recording medium during the information record;
One controller, this controller is connected to this record processing unit and this extraction treating apparatus, be used to analyze the radiation beam that this reflects, and then be evaluated at information record usefulness under the operational circumstances of this test speed of operating, up to the optimal recording power that determines the corresponding test speed of operating, and the processing that carries out curve fitting of optimal recording power that subsequently should correspondence and these a plurality of test speeds, and then produce a velocity function;
One determination device, this determination device is connected to this controller, is used to receive the input of this user's setting speed, and by with in this this velocity function of user's setting speed substitution, calculates this recording power.
10. information recording/regenerating as claimed in claim 9 system, wherein this user's setting speed is faster than all test speeds.
11. information recording/regenerating as claimed in claim 9 system, wherein this determination device is carried out and is judged whether this user's setting speed equates with any one test speed in these a plurality of test speeds, if certainly, this determination device is then carried out definite test speed that equates with this user's setting speed, and determine the recording power of the optimal recording power of corresponding determined test speed for this radiation beam, to replace, calculate this recording power by with in this this velocity function of user's setting speed substitution.
12. information recording/regenerating as claimed in claim 11 system, wherein this velocity function is the polynomial expression of second order at least.
13. information recording/regenerating as claimed in claim 11 system, this velocity function wherein is an exponential function.
14. information recording/regenerating as claimed in claim 11 system wherein utilizes the anticipation function that is embedded in the application software to produce this velocity function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02140366 CN1211786C (en) | 2002-07-01 | 2002-07-01 | Method for detrmining recording-power of radiation beam used recording information on recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02140366 CN1211786C (en) | 2002-07-01 | 2002-07-01 | Method for detrmining recording-power of radiation beam used recording information on recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1466128A CN1466128A (en) | 2004-01-07 |
| CN1211786C true CN1211786C (en) | 2005-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02140366 Expired - Fee Related CN1211786C (en) | 2002-07-01 | 2002-07-01 | Method for detrmining recording-power of radiation beam used recording information on recording medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1211786C (en) |
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2002
- 2002-07-01 CN CN 02140366 patent/CN1211786C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1466128A (en) | 2004-01-07 |
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