CN101383160B - Evaluation indicator acquiring method and optical recording apparatus - Google Patents

Abstract

There are provided an optical recording method, an evaluation indicator acquiring method, an optical recording apparatus, a one-chip CPU device, and a computer program, which can save a test time before recording information so as to record information for a short time. An irradiation condition suitable for recording information on a first recording layer 11 is extracted by recording and reproducing test information accompanied with a change in type of a recording condition with respect to the first recording layer. The test information is recorded on and reproduced from second and third recording layers 12, 13 in a number of times smaller than the number of times for changing the type of the test recording condition in testing the first recording layer 11. The irradiation condition suitable for recording information on the second or third recording layers 12, 13 is extracted on the basis of the test result for the first recording layer and the test result for the second or third recording layer. Accordingly, it is possible to save the test time for extracting the irradiation condition of the second and third recording layers 12, 13.

Description

Evaluation indicator acquiring method and optical recorder

The present invention is dividing an application of patented claim 200610109729.8, and the applying date of original application is on August 9th, 2006, and the original application invention and created name is " optic recording method, evaluation indicator acquiring method, optical recorder and micro cpu device ".

Technical field

The present invention relates to record information to the optical recording media with a plurality of recording layers, particularly can shortening information write optic recording method, evaluation indicator acquiring method, optical recorder, micro cpu device and the computer program of fashionable test duration.

Background technology

Before, using laser to record data in the optical recorder of the optical recording medias such as well-known DVD (optical recording media), when at the enterprising row data record of specific recording medium, generally speaking, before the real data record, carry out test record by the test record zone that use is located in the recording medium, seek to be fit to the record condition of recording medium.

Yet, requiring in the surging optical recorder with huge storage capacity recording at a high speed, when at the enterprising row data record of the multi-layered optical recording media with a plurality of recording layers, because the recording characteristics such as each recording layer recording sensitivity, light reflectivity, pyroconductivity are different, so must seek the recording impulse condition corresponding to this each recording layer.

As the prior art of seeking described recording impulse condition, such as Figure 25 and shown in Figure 26, normal operation following methods: corresponding to the conditions such as writing speed take each recording medium kind as unit, make the data form that has in advance record recording impulse condition in the storer of record driver (optical recorder), can carry out take each recording layer as unit good record, and in fact, when the enterprising row data record of recording medium, from above-mentioned data form, read the recording medium classification, recording layer, the corresponding recording impulse condition of writing speed, and set this condition, carry out data recording.

In addition, consider the individual difference of record driver self or the temperature dependency of inequality or laser etc., generally also use following methods: in the test record of before data recording, carrying out, only the condition of recording laser power is adjusted.

[patent documentation 1] Japanese Patent Laid-Open 2005-100610 communique

[patent documentation 2] Japanese Patent Laid-Open 2003-22532 communique

[patent documentation 3] Japanese Patent Laid-Open 2004-171740 communique

[patent documentation 4] Japanese Patent Laid-Open 2004-247024 communique

[patent documentation 5] WO2002-029791 communique

[patent documentation 6] Japanese Patent Laid-Open 2003-178448 communique

Yet, in above-mentioned routine techniques, have the 1st problem, that is, to the burden increase of memory span in the limited record driver, when using high capacity memory, because the cost that involves the record driver increases, thereby limited can corresponding recording medium number.

In addition, there is the 2nd problem, namely, it is uneven with the characteristic of record driver fully to solve the recording medium that only relies on recording laser power and can remedy, in addition for " optical recording medias of unknown kind " such as recording mediums that be not stored in advance the recording medium in the record drive memory and after the record driver is sold, sell, although a part is solved with the form that so-called firmware upgrades, and also can't fully solve.

Therefore, insider's expectation is sought the at short notice technological development of the best titime condition take writing speed as unit according to the recording medium of data recording and the characteristic of record driver.

The present invention develops to form in view of the above problems, and its purpose is: provide test duration that can shorten before the information recording/so that the at short notice optic recording method of recorded information, evaluation indicator acquiring method, optical recorder, single-chip CPU element and computer program.

Summary of the invention

For addressing the above problem, the present invention proposes a kind of optic recording method, when by optical recorder the recording medium that comprises multilayer with a recording layer and other recording layers being carried out Ear Mucosa Treated by He Ne Laser Irradiation and recorded information record, carry out record and the regeneration of detecting information at the test zone of each recording layer, derive the illuminate condition of laser, and utilize this illuminate condition to above-mentioned recording medium irradiating laser, recorded information thus, and above-mentioned optical recorder is carried out following steps: reference recording layer testing procedure, on an above-mentioned recording layer, carry out changing with the kind of record condition record and the regeneration of corresponding detecting information; Reference recording layer illuminate condition derived step, and according to the obtained test result of said reference recording layer testing procedure, derivation is fit to record information to an illuminate condition on the recording layer; Other recording layer testing procedures are less than change number of times in the said reference recording layer testing procedure with the kind of test record condition change number of times, carry out record and the regeneration of detecting information at above-mentioned other recording layers; And other recording layer illuminate conditions are derived step, test result and above-mentioned other the recording layer testing procedures obtained test result obtained according to said reference recording layer testing procedure derive the illuminate condition that is fit to record information on above-mentioned other recording layers.

According to optic recording method of the present invention, in said reference recording layer testing procedure, on an above-mentioned recording layer, carry out changing with the kind of record condition record and the regeneration of corresponding detecting information, in addition, derive in the step at said reference recording layer illuminate condition, according to the obtained test result of said reference recording layer testing procedure, derivation is fit to record information to an illuminate condition on the recording layer.

In addition, in above-mentioned other recording layer testing procedures, be less than change number of times in the said reference recording layer testing procedure with the change number of times of the kind of test record condition, carry out record and the regeneration of detecting information at above-mentioned other recording layers, and, derive in the step at above-mentioned other recording layer illuminate conditions, the test result obtained according to the obtained test result of said reference recording layer testing procedure and above-mentioned other recording layer testing procedures, derivation is fit to record information to the illuminate condition on above-mentioned other recording layers, and utilizes this illuminate condition to record information on above-mentioned other recording layers.

In addition, for addressing the above problem, the present invention proposes a kind of optic recording method, be by optical recorder when the recording medium that comprises multilayer with a recording layer and other recording layers is carried out Ear Mucosa Treated by He Ne Laser Irradiation and recorded information, carry out record and the regeneration of detecting information at the test zone of each recording layer, derive the illuminate condition of laser, and utilize this illuminate condition that above-mentioned recording medium is carried out Ear Mucosa Treated by He Ne Laser Irradiation, recorded information thus, above-mentioned optical recorder is carried out following steps: reference recording layer testing procedure, on an above-mentioned recording layer, carry out changing with the kind of record condition record and the regeneration of corresponding detecting information; Reference recording layer illuminate condition derived step, and according to the obtained test result of said reference recording layer testing procedure, derivation is fit to record information to an illuminate condition on the recording layer; Other recording layer testing procedures under any test record condition in the test record condition of said reference recording layer testing procedure, carry out record and the regeneration of detecting information at above-mentioned other recording layers; And other recording layer illuminate conditions are derived step, test result and above-mentioned other the recording layer testing procedures obtained test result obtained according to said reference recording layer testing procedure derive the illuminate condition that is fit to record information on above-mentioned other recording layers.

According to the present invention, in said reference recording layer testing procedure, carry out changing with the kind of record condition record and the regeneration of corresponding detecting information at an above-mentioned recording layer, and, derive in the step at said reference recording layer illuminate condition, according to the obtained test result of said reference recording layer testing procedure, derivation is fit to record information to an illuminate condition on the recording layer.

In addition, in above-mentioned other recording layer testing procedures, under any test record condition in the test record condition of said reference recording layer testing procedure, on above-mentioned other recording layers, carry out record and the regeneration of detecting information, and, derive in the step at above-mentioned other recording layer illuminate conditions, the test result obtained according to the obtained test result of said reference recording layer testing procedure and above-mentioned other recording layer testing procedures, derivation is fit to record information to the illuminate condition on above-mentioned other recording layers, and utilizes this illuminate condition to record information on above-mentioned other recording layers.

In addition, for addressing the above problem, the present invention proposes a kind of optic recording method, by optical recorder during to the recording medium Ear Mucosa Treated by He Ne Laser Irradiation that comprises multilayer with a recording layer and other recording layers and recorded information, carry out record and the regeneration of detecting information at the test zone of each recording layer, derive the illuminate condition of laser, and utilize this illuminate condition that above-mentioned recording medium is carried out Ear Mucosa Treated by He Ne Laser Irradiation, recorded information thus, and above-mentioned optical recorder is carried out following steps: reference recording layer testing procedure, changing under the corresponding test record condition with condition repeatedly, carry out record and the regeneration of detecting information at an above-mentioned recording layer; Reference recording layer illuminate condition derived step, and according to the obtained test result of said reference recording layer testing procedure, derivation is fit to record information to an illuminate condition on the recording layer; Other recording layer testing procedures are less than employed conditional number in the said reference recording layer testing procedure with the test record conditional number, carry out record and the regeneration of detecting information at above-mentioned other recording layers; And other recording layer illuminate conditions are derived step, test result and above-mentioned other the recording layer testing procedures obtained test result obtained according to said reference recording layer testing procedure derive the illuminate condition that is fit to record information on above-mentioned other recording layers.

According to the present invention, in said reference recording layer testing procedure, on an above-mentioned recording layer, change under the corresponding test record condition in condition repeatedly, carry out record and the regeneration of detecting information, and, derive in the step at said reference recording layer illuminate condition, according to the obtained test result of said reference recording layer testing procedure, derivation is fit to record information to an illuminate condition on the recording layer.

In addition, in above-mentioned other recording layer testing procedures, be less than employed conditional number in the said reference recording layer testing procedure with the test record conditional number, carry out record and the regeneration of detecting information at above-mentioned other recording layers, and, derive in the step at above-mentioned other recording layer illuminate conditions, the test result obtained according to the obtained test result of said reference recording layer testing procedure and above-mentioned other recording layer testing procedures, derivation is fit to record information to the illuminate condition on above-mentioned other recording layers, and utilizes this illuminate condition to record information on above-mentioned other recording layers.

In addition, for addressing the above problem, the present invention proposes a kind of optic recording method, be by optical recorder when the recording medium that comprises multilayer with a recording layer and other recording layers is carried out Ear Mucosa Treated by He Ne Laser Irradiation and recorded information, carry out record and the regeneration of detecting information at the test zone of each recording layer, derive the illuminate condition of laser, and utilize this illuminate condition that above-mentioned recording medium is carried out Ear Mucosa Treated by He Ne Laser Irradiation, recorded information thus, and above-mentioned optical recorder is carried out following steps: reference recording layer testing procedure, under multiple test record condition, carry out record and the regeneration of detecting information at an above-mentioned recording layer; Reference recording layer illuminate condition derived step, and according to the obtained test result of said reference recording layer testing procedure, derivation is fit to record information to an illuminate condition on the recording layer; Other recording layer testing procedures carry out record and the regeneration of detecting information at above-mentioned other recording layers; And other recording layer illuminate conditions are derived step, test result and above-mentioned other the recording layer testing procedures obtained test result obtained according to said reference recording layer testing procedure, derivation is fit to record information to the illuminate condition on above-mentioned other recording layers, and said reference recording layer testing procedure comprises: the 1st detecting information recording step, record detecting information at an above-mentioned recording layer, and the 1st detecting information regeneration step, the detecting information that regeneration is recorded by above-mentioned the 1st detecting information recording step; Above-mentioned other recording layer testing procedures comprise: the 2nd detecting information recording step, record detecting information at above-mentioned other recording layers, and the 2nd detecting information regeneration step, the detecting information that regeneration is recorded by above-mentioned the 2nd detecting information recording step; And the conversion times of above-mentioned the 2nd detecting information recording step and above-mentioned the 2nd detecting information regeneration step is made as the conversion times that is less than above-mentioned the 1st detecting information recording step and above-mentioned the 1st detecting information regeneration step.

According to the present invention, in said reference recording layer testing procedure, on an above-mentioned recording layer, under multiple test record condition, to the 1st detecting information regeneration step that detecting information the 1st detecting information recording step that records and the detecting information that above-mentioned the 1st detecting information recording step is recorded are regenerated, change with specific times.

In addition, reference recording layer illuminate condition derived in the step, and according to the obtained test result of said reference recording layer testing procedure, derivation is fit to record information to an illuminate condition on the recording layer.

In addition, in above-mentioned other recording layer testing procedures, on above-mentioned other recording layers, the 2nd detecting information recording step that detecting information is recorded, with the 2nd detecting information regeneration step that the detecting information that above-mentioned the 2nd detecting information recording step is recorded is regenerated, change with the conversion times that is less than in the said reference recording layer testing procedure.

In addition, derive in the step at above-mentioned other recording layer illuminate conditions, the test result obtained according to the obtained test result of said reference recording layer testing procedure and above-mentioned other recording layer testing procedures, derivation is fit to record information to the illuminate condition on above-mentioned other recording layers, and utilizes this illuminate condition to record information on above-mentioned other recording layers.

In addition, for addressing the above problem, the present invention proposes a kind of optic recording method, be by optical recorder when the recording medium that comprises multilayer with a recording layer and other recording layers is carried out Ear Mucosa Treated by He Ne Laser Irradiation and recorded information, carry out record and the regeneration of detecting information at the test zone of each recording layer, derive the illuminate condition of laser, and utilize this illuminate condition that above-mentioned recording medium is carried out Ear Mucosa Treated by He Ne Laser Irradiation, recorded information thus, and above-mentioned optical recorder is carried out following steps: reference recording layer testing procedure, on an above-mentioned recording layer, record and the regeneration of changing the detecting information that consists of by the stage of record condition are set repeatedly; Reference recording layer illuminate condition derived step, and according to the obtained test result of said reference recording layer testing procedure, derivation is fit to record information to an illuminate condition on the recording layer; Other recording layer testing procedures are less than number of times in the said reference recording layer testing procedure with the number of times that arranges of the record of detecting information and regeneration, carry out record and the regeneration of detecting information at above-mentioned other recording layers; And other recording layer illuminate conditions are derived step, test result and above-mentioned other the recording layer testing procedures obtained test result obtained according to said reference recording layer testing procedure derive the illuminate condition that is fit to record information on above-mentioned other recording layers.

According to the present invention, in said reference recording layer testing procedure, on an above-mentioned recording layer, record and the regeneration of changing the detecting information that consists of by the stage of record condition repeatedly are set, and, derive in the step at said reference recording layer illuminate condition, according to the obtained test result of said reference recording layer testing procedure, derivation is fit to record information to an illuminate condition on the recording layer.

In addition, in other recording layer testing procedures, the number of times that arranges with the record of detecting information and regeneration is less than number of times in the said reference recording layer testing procedure, carry out record and the regeneration of detecting information at above-mentioned other recording layers, and, derive in the step at above-mentioned other recording layer illuminate conditions, test result and above-mentioned other the recording layer testing procedures obtained test result obtained according to said reference recording layer testing procedure, derivation is fit to record information to the illuminate condition on above-mentioned other recording layers, and utilizes this illuminate condition to record information on above-mentioned other recording layers.

In addition, for addressing the above problem, the present invention proposes a kind of evaluation indicator acquiring method, it is the evaluation indicator acquiring method of optic recording method, this optic recording method be by optical recorder when the recording medium that comprises multilayer with a recording layer and other recording layers is carried out Ear Mucosa Treated by He Ne Laser Irradiation and recorded information, after the test zone record detecting information of each recording layer, this detecting information that records is regenerated, to obtain to determine the evaluation index of laser irradiation condition, and utilize this evaluation index to adjust the illuminate condition of laser, above-mentioned optical recorder is carried out following steps: the detecting information recording step, on an above-mentioned recording layer, make the record condition phasic Chang of laser power, and the record detecting information; The pulse width adjustment obtains step with what evaluation index changed, when the detecting information that is recorded by above-mentioned detecting information recording step is regenerated, obtain, this pulse width adjustment contain with the variation of evaluation index in the corresponding impulse phase skew of variation, length offset and the amplitude excursion of laser power record condition at least any; Mutual relationship is tried to achieve step, obtains the variation of above-mentioned laser power and above-mentioned obtained pulse width adjustment and mutually closes the with the variation of evaluation index; The 2nd detecting information recording step on above-mentioned other recording layers, makes the record condition phasic Chang of laser power, and the record detecting information; Calculation procedure makes the result of above-mentioned the 2nd test record meet above-mentioned mutual relationship, to calculate the pulse width adjustment with the relation of the variation of laser power in the variation of evaluation index and other recording layers; And the pulse width adjustment utilizes the obtained relation of above-mentioned calculation procedure with the step of trying to achieve of evaluation index, obtains the pulse width adjustment evaluation index of the pulse width condition in above-mentioned other recording layers that determines.

According to evaluation indicator acquiring method of the present invention, calculate the relation of variation with the variation of pulse width evaluation index of laser power in mutual relationship that the variation of laser power in the above-mentioned recording layer and pulse width evaluation index change and above-mentioned other recording layers, and utilize this relation, obtain the pulse width adjustment evaluation index of the pulse width condition in above-mentioned other recording layers that determines.

In addition, for addressing the above problem, the present invention proposes a kind of evaluation indicator acquiring method, it is the evaluation indicator acquiring method of optic recording method, this optic recording method be by optical recorder when the recording medium that comprises multilayer with a recording layer and other recording layers is carried out Ear Mucosa Treated by He Ne Laser Irradiation and recorded information, after the test zone record detecting information of each recording layer, this detecting information that records is regenerated, to obtain the evaluation index of laser irradiation condition, and utilize this evaluation index to adjust the illuminate condition of laser, above-mentioned optical recorder is carried out following steps: the detecting information recording step, on an above-mentioned recording layer, make the record condition phasic Chang of pulse width, and the record detecting information; The laser power adjustment obtains step with what evaluation index changed, when being recorded to detecting information on the above-mentioned recording layer by above-mentioned detecting information recording step and regenerating, obtain the corresponding laser power adjustment of the variation evaluation index of pulse width record condition; Mutual relationship is tried to achieve step, obtains the variation of above-mentioned pulse width and the mutual relationship that the variation of evaluation index is used in above-mentioned laser power adjustment; The 2nd detecting information recording step on above-mentioned other recording layers, makes the record condition phasic Chang of pulse width, and the record detecting information; Calculation procedure makes the result of above-mentioned the 2nd test record meet above-mentioned mutual relationship, to calculate the laser power adjustment with the relation of the variation of the variation of evaluation index and the pulse width record condition in other recording layers; And the laser power adjustment utilizes the obtained relation of above-mentioned calculation procedure with the step of trying to achieve of evaluation index, obtains the laser power adjustment evaluation index of the laser power condition in above-mentioned other recording layers that determines.

According to evaluation indicator acquiring method of the present invention, on a recording layer, make the record condition phasic Chang of pulse width, with the record detecting information, and when the detecting information that records on the recording layer was regenerated, the record condition of obtaining with pulse width changed corresponding laser power adjustment evaluation index.In addition, obtain the variation of pulse width and the mutual relationship that the variation of evaluation index is used in the laser power adjustment.And, for other recording layers, make the record condition phasic Chang of pulse width, with the record detecting information, and make this record result meet above-mentioned mutual relationship, change corresponding laser power adjustment evaluation index with the record condition that calculates pulse width in other recording layers.

In addition, for addressing the above problem, the present invention proposes a kind of evaluation indicator acquiring method, it is the evaluation indicator acquiring method of optic recording method, this optic recording method be by optical recorder when the recording layer to recording medium carries out Ear Mucosa Treated by He Ne Laser Irradiation and recorded information, carry out the regeneration of recording of information and information at above-mentioned recording layer, to obtain the evaluation index of laser irradiation condition, and utilize this evaluation index to adjust the illuminate condition of laser, above-mentioned optical recorder is carried out following steps: the information recording/step, carry out the record of test record information and user data recorded information at above-mentioned recording layer, and multiple evaluation index obtain step, the information that above-mentioned information recording/step records is regenerated, and regenerating information and obtain the multiple evaluation index relevant with laser irradiation condition thus.

According to evaluation indicator acquiring method of the present invention, recorded information on above-mentioned recording layer, and will be with this information regeneration that records, and regenerating information is obtained the multiple evaluation index relevant with laser irradiation condition with above-mentioned record condition thus.

In addition, for addressing the above problem, the present invention's proposition possesses the optical recorder of the performance element of the various processes in the above-mentioned optic recording method, the single-chip CPU element that is used for this optical recorder and driving and is used for the CPU of above-mentioned optical recorder to carry out the computer program of above-mentioned optic recording method.

[effect of invention]

According to optic recording method of the present invention, for a recording layer, carry out changing with the kind of record condition record and the regeneration of corresponding detecting information, according to this obtained test result, derivation is fit to record information to an illuminate condition on the recording layer, in addition, the change number of times that is less than reference recording layer testing procedure with the kind change number of times of test record condition, carry out record and the regeneration of detecting information at other recording layers, and according to the test result of a recording layer and the test result of other recording layers, derivation is fit to record information to the illuminate condition on other recording layers, and utilize this illuminate condition to carry out information recording/at other recording layers, therefore can shorten to derive the test duration of the illuminate condition of other recording layers, so can shorten the test duration before the information recording/, thereby recorded information at short notice.In addition, and before compared, can reduce the posting field for test record.

In addition, according to optic recording method of the present invention, carry out changing with the kind of record condition record and the regeneration of corresponding detecting information at a recording layer, and according to this test result, derivation is fit to record information to an illuminate condition on the recording layer, in addition, under any test record condition in the test record condition of reference recording layer testing procedure, carry out record and the regeneration of detecting information at other recording layers, and according to the test result of a recording layer and the test result of other recording layers, derivation is fit to record information to the illuminate condition on other recording layers, recycling this illuminate condition records information on above-mentioned other recording layers, therefore can shorten to derive the test duration of other recording layer illuminate conditions, so can shorten the test duration before the information recording/, thereby recorded information at short notice.In addition, and before compared, can reduce the posting field for test record.

In addition, according to optic recording method of the present invention, for a recording layer, changing record and the regeneration of carrying out detecting information under the corresponding test record condition with condition repeatedly, and according to this test result, derivation is fit to record information to an illuminate condition on the recording layer, in addition, be less than employed conditional number in the reference recording layer testing procedure with the test record conditional number, carry out record and the regeneration of detecting information at other recording layers, and the test result obtained according to the obtained test result of reference recording layer testing procedure and other recording layer testing procedures, derivation is fit to record information to the illuminate condition on other recording layers, and utilize this illuminate condition to carry out information recording/at other recording layers, therefore can shorten to derive the test duration of other recording layer illuminate conditions, so can shorten the test duration before the information recording/, thereby recorded information at short notice.In addition, and before compared, can reduce the posting field for test record.

In addition, according to optic recording method of the present invention, on a recording layer, the record that carries out detecting information under multiple test record condition is during with regeneration, this record is changed with specific times with regeneration, and according to this test result, derivation is fit to record information to an illuminate condition on the recording layer, in addition, when other recording layers carry out the record of detecting information and regenerate, this record is changed with the conversion times that is less than in the above-mentioned recording layer with regeneration, and according to the test result of a recording layer and the test result of other recording layers, derivation is fit to record information to the illuminate condition on other recording layers, and utilize this illuminate condition to record information on above-mentioned other recording layers, therefore can shorten to derive the test duration of other recording layer illuminate conditions, thus the test duration before the information recording/can be shortened, thus recorded information at short notice.In addition, and before compared, can reduce the posting field for test record.

In addition, according to optic recording method of the present invention, on a recording layer, record and the regeneration of changing the detecting information that consists of by the stage of record condition repeatedly are set, and according to this test result, derivation is fit to record information to an illuminate condition on the recording layer, in addition, on other recording layers, the number of times in the test that number of times is less than an above-mentioned recording layer of arranging with the record of detecting information and regeneration, carry out record and the regeneration of detecting information, and according to the test result of a recording layer and the test result of other recording layers, derivation is fit to record information to the illuminate condition on other recording layers, and utilize this illuminate condition to record information on above-mentioned other recording layers, therefore can shorten to derive the test duration of other recording layer illuminate conditions, thus the test duration before the information recording/can be shortened, thus recorded information at short notice.In addition, and before compared, can reduce the posting field for test record.

In addition, according to evaluation indicator acquiring method of the present invention, calculate the mutual relationship of the variation of the variation of laser power in the recording layer and pulse width evaluation index, and the relation of the variation of the variation of laser power and pulse width evaluation index in other recording layers, and utilize this relation, obtain the pulse width adjustment evaluation index of the pulse width condition in above-mentioned other recording layers that determines, therefore calculate the pulse width evaluation index in above-mentioned other recording layers, and need not carry out actual test record in order to obtain this pulse width evaluation index, therefore can shorten to derive the test duration of other recording layer illuminate conditions, so can shorten the test duration before the information recording/, thereby recorded information at short notice.In addition, and before compared, can reduce the posting field for test record.

In addition, according to evaluation indicator acquiring method of the present invention, the record result who makes the record condition phasic Chang of pulse width in other recording layers and test, meet the variation of pulse width in the recording layer and the mutual relationship that the variation of evaluation index is used in the laser power adjustment, and the record condition that calculates pulse width in other recording layers changes corresponding laser power adjustment evaluation index, therefore need not be take the kind of evaluation index as the unit record detecting information, so can shorten the test duration, and can shorten the test duration before the information recording/, thereby recorded information at short notice.In addition, and before compared, can reduce the posting field for test record.

In addition, according to evaluation indicator acquiring method of the present invention, make the record condition phasic Chang and record detecting information at recording layer, and the detecting information that will record thus regeneration, according to this regenerating information and above-mentioned record condition, obtain the multiple evaluation index relevant with laser irradiation condition, therefore need not be take the kind of evaluation index as the unit record detecting information, so can shorten the test duration, and can shorten test duration before the information recording/, thus recorded information at short notice.In addition, and before compared, can dwindle the posting field for test record.

In addition, according to optical recorder of the present invention, can be easy to realize above-mentioned optic recording method.

In addition, according to micro cpu device of the present invention, can be easy to realize above-mentioned optic recording method.

In addition, according to computer program of the present invention, use any CPU can be easy to realize above-mentioned optic recording method.

Description of drawings

Fig. 1 is optical recorder structure in the present invention's the 1st example and the synoptic diagram of laser disc structure.

Fig. 2 is recording processing is carried out in explanation to the 1st recording layer in the present invention's the 1st example process flow diagram.

Fig. 3 is recording processing is carried out in explanation to the recording layer except the 1st recording layer in the present invention's the 1st example process flow diagram.

Fig. 4 is the key diagram that interim laser power variation in the test record is used in the laser power adjustment.

Fig. 5 is the characteristic relation synoptic diagram of expression laser power and β relation.

Fig. 6 is the characteristic relation synoptic diagram of the impulse phase correction parameter in expression laser power and the impulse phase relation.

Fig. 7 is the characteristic relation synoptic diagram of the impulse phase correction parameter in position skew and the impulse phase relation of indicating impulse rise and fall.

Fig. 8 is the characteristic relation synoptic diagram of the phase correction parameter in the relation of expression laser power and impulse phase.

Fig. 9 is the characteristic relation synoptic diagram of the impulse phase correction parameter in position skew and the impulse phase relation of indicating impulse rise and fall.

Figure 10 is the characteristic relation synoptic diagram of expression laser power and asymmetry relation.

Figure 11 is the characteristic relation synoptic diagram of the phase correction parameter in expression laser power and the amplitude relation.

Figure 12 is the characteristic relation synoptic diagram of the impulse phase correction parameter in position skew and the impulse phase relation of indicating impulse rise and fall.

Figure 13 is the characteristic relation synoptic diagram of the phase correction parameter in expression laser power and the amplitude relation.

Figure 14 is the characteristic relation synoptic diagram of the impulse phase correction parameter in position skew and the impulse phase relation of indicating impulse rise and fall.

Figure 15 is recording processing is carried out in explanation to the recording layer except the 1st recording layer in the present invention's the 2nd example process flow diagram.

Figure 16 is recording processing is carried out in explanation to the 1st recording layer in the present invention's the 3rd example process flow diagram.

Figure 17 is recording processing is carried out in explanation to the recording layer except the 1st recording layer in the present invention's the 3rd example process flow diagram.

Figure 18 is recording processing is carried out in explanation to the recording layer except the 1st recording layer in the present invention's the 4th example process flow diagram.

Figure 19 is recording processing is carried out in explanation to the 1st recording layer in the present invention's the 5th example process flow diagram.

Figure 20 is recording processing is carried out in explanation to the recording layer except the 1st recording layer in the present invention's the 5th example process flow diagram.

Figure 21 is recording processing is carried out in explanation to the recording layer except the 1st recording layer in the present invention's the 6th example process flow diagram.

Figure 22 is recording processing is carried out in explanation to the 1st recording layer in the present invention's the 7th example process flow diagram.

Figure 23 is recording processing is carried out in explanation to the recording layer except the 1st recording layer in the present invention's the 7th example process flow diagram.

Figure 24 is recording processing is carried out in explanation to the recording layer except the 1st recording layer in the present invention's the 8th example process flow diagram.

Figure 25 is the chart synoptic diagram of first precedent.

Figure 26 is the tactful form synoptic diagram of first precedent.

Figure 27 is recording processing is carried out in explanation to the recording layer in the present invention's the 1st example process flow diagram.

Figure 28 is the key diagram that the interim laser power variation in the test record is used in the laser power adjustment.

Figure 29 is the characteristic relation synoptic diagram of expression laser power and β relation.

Figure 30 is the characteristic relation synoptic diagram of expression laser power and impulse phase relation.

Figure 31 is the characteristic relation synoptic diagram of the impulse phase correction parameter in position skew and the impulse phase relation of indicating impulse rise and fall.

Figure 32 is the characteristic relation synoptic diagram of the phase correction parameter in expression laser power and the impulse phase relation.

Figure 33 is the characteristic relation synoptic diagram of the impulse phase correction parameter in position skew and the impulse phase relation of indicating impulse rise and fall.

[explanation of symbol]

10 laser discs (recording medium)

11 the 1st recording layers (recording layer)

12 the 2nd recording layers (other recording layers)

13 the 3rd recording layers (other recording layers)

100 optical recorders

110 optical pick-ups

111 laser diodes (LD)

112 photodetectors (PD)

113 collimation lenses

114 object lens

115 detect lens

116 beam splitters

121 LD drivers

122 cutting machines

123 demodulator circuits

124 eigenwert test sections

125 single-chip CPU elements (CPU)

126 memory circuits

127 storeies

128 interfaces (I/F)

131 display parts

132 operating portions

Embodiment

Below, with reference to a description of drawings example of the present invention.

Fig. 1 is optical recorder structure in the present invention's the 1st example and the synoptic diagram of laser disc structure.Among the figure, 10 expression laser discs, the multi-layered optical recording media such as well-known DVD, HD-DVD, Blu-ray (blue light) laser disc, in this example, expression from distance coplanar laser illumination highest distance position begin to have successively the 1st recording layer 11, the optical recording media of 3 recording layers of the 2nd recording layer 12, the 3rd recording layer 13.Moreover, be to utilize the optical recording media with 3 recording layers to describe in this example, also can with optical recording media with recording layer more than 2 layers as laser disc 10, utilize optical recorder 100 to carry out recording of information regeneration.

100 expression optical recorders possess optical pick-up 110, laser diode (hereinafter referred to as LD) driver 121, cutting machine 122, demodulator circuit 123, eigenwert test section 124, single-chip CPU element (hereinafter referred to as CPU) 125, storer 127 and interface (hereinafter referred to as I/F) 128.Moreover only announcement has the structure division of special relationship with the present invention and describes herein.

And, in the optical recorder 100, be connected with the display part 131 that is consisted of by personal computer or display etc. and the operating portion 132 that is consisted of by keyboard etc.

Optical pick-up 110 has laser diode (hereinafter referred to as LD) 111, photodetector (hereinafter referred to as PD) 112, collimation lens 113, object lens 114, detects lens 115 and beam splitter 116.The laser that penetrates from LD111 sees through collimation lens 113, beam splitter 116 exposes on the laser disc 10 with object lens 114.

In addition, see through object lens 114 by the laser of laser disc 10 reflection after, by beam splitter 116 reflections, and inject among the PD112 via detecting lens 115.The electric current that PD112 output is corresponding with the light value of injecting light.

LD driver 121 supplies to drive current among the LD111, so that LD111 is luminous according to the tracer signal from 125 inputs of CPU element.

122 pairs of output currents of cutting machine cut in specific threshold value, and are translated into the binaryzation voltage signal and export from PD112.

Demodulator circuit 123 is to carrying out demodulation from cutting machine 122 outputs and encoded two-value signal, and output to the circuit of CPU125, for example, will be from the binaryzation voltage signal of cutting machine 122 outputs, the signal that namely carries out the EFM modulating-coding with the pulse width of 3T～11T after the demodulation, outputs to the digital signal that obtains among the CPU125 in addition.

The current signal that eigenwert test section 124 input is exported from PD112, according to this current value, and by from the reflected light of laser disc 10 and the detected characteristics value outputs to it among CPU125 as numerical information.The eigenwert that detects as reflected light thus, for example exist with ... recording laser power or recording impulse condition, and have corresponding to the eigenwert that makes recording impulse condition the best and get final product, in this example, detect β, asymmetry (Asymmetry), phase place, amplitude etc.

CPU125 is well-known single-chip CPU element, possesses memory circuit 126, stores within this memory circuit 126 to use so that the computer program of CPU operation.In addition, CPU125 controls driving mechanism section (not shown), the rotary actuation control of adjusting position, tracking, the focal length of optical pick-up 110 and carrying out laser disc 10, and according to the data form that stores in the storer 127, the information recording/that to input from the outside (writes) to laser disc 10, perhaps reads to be recorded to the information in the laser disc 10 and to output to external device (ED).And, by following processing, to laser disc 10 recorded information the time, test, obtain best lasing condition, to carry out information recording/.

Memory circuit 127 is connected with CPU125, and section will be recorded to data form with the corresponding data of other kind laser discs, as the tactful form identical with first precedent within it.

I/F128 is the interface that is connected with outside display part 131 and operating portion 132 in order to CPU, and the record regenerating information between external device (ED) and the CPU125 is transmitted.

In the said structure, utilize from the laser of LD111 output, laser disc 10 carried out recording of information regeneration, and the external device (ED) such as personal computer (PC) between carry out the send and receive of information.Moreover optical recorder 100 is in recording information to laser disc 10 time, successively with the journal information of the 1st recording layer 11, the 2nd record the 12, the 3rd recording layer 13.

When laser disc 10 is carried out information recording/, recorded information is encoded, recorded information after utilizing CPU125 to this coding is processed, determine that thus conduct is to the strategy of the record condition of laser disc 10, utilize LD driver 121 that this strategy is converted to recording impulse, and export according to this recording impulse and the laser of chopping from LD111.

LD driver 121 drives LD111 according to the recording impulse of inputting, LD111 is the corresponding and control Output of laser of recording impulse therewith, make this in check laser via collimation lens 113, beam splitter 116, object lens 114, shine on the laser disc 10 that rotates in linear velocity is fixed or rotational speed is fixing mode, be listed as the recording figure forming that consists of by pit and gap and be recorded on the laser disc 10 corresponding with the expection recorded information thus.

In addition, when recording information in the laser disc 10, as everyone knows, carry out the regeneration of record and the detecting information of detecting information at the test zone of laser disc 10, to determine best laser irradiation condition.In the optical recorder 100 of this example, determine the test duration of this laser irradiation condition and before compared and to shorten.

Below, describe the method that determines laser irradiation condition in this example in detail.

Fig. 2 and Fig. 3 are recording processing is carried out in explanation to the recording layer in the 1st example process flow diagrams.The computer program of carrying out this processing is pre-stored in the memory circuit 126 of CPU125, carry out above processing by CPU125.In addition, in this example, the test processes when recording information to the 1st recording layer 11 of laser disc 10, with before roughly the same, and the test processes when recording information to recording layer except the 1st recording layer 11, different from test processes in the 1st recording layer 11, the former can shorten the time.

That is, when recording the information in the 1st recording layer 11, carry out processing shown in Figure 2.During this processes, make and previous identical recording laser intensity optimization (OPC:Optimum Power Control, optimum power control, hereinafter referred to as OPC), under following two kinds of test record conditions, test thus, namely, the laser power adjustment test record of specific times, with the pulse width adjustment test record of specific times, and with the information regeneration (SA1) that records, detect under the laser irradiation condition parameter (evaluation index) (SA2).As this parameter, enumerate β (asymmetry), Ear Mucosa Treated by He Ne Laser Irradiation power, impulse phase etc. during such as DVD.In addition, the laser power adjustment is to make laser power (Wrigte PW) phasic Chang and carry out with test record as shown in Figure 4, and the pulse width adjustment is to make the pulse width phasic Chang and carry out with test record similarly.Moreover, when carrying out the above-mentioned parameter detection, use under the situation of the data of the tactful form of in can using storer 127, storing, and for the laser disc 10 of the unknown kind of the data that can't use the tactful form of storing in the storer 127, then carry out well-known Strategy Auto Check processing.

Secondly, derive characteristic relation (SA3) by the above-mentioned parameter of obtaining.As this characteristic relation, the characteristic relation of the impulse phase correction parameter in the position skew (Pulse (Topr, Tlast)) of the characteristic relation of the phase correction parameter in the characteristic relation of the laser power (Wrigte PW) of induced representation shown in chart among Fig. 5 and β relation, the laser power (Wrigte PW) of expression shown in chart among Fig. 6 and the impulse phase relation and the pulse rise and fall of expression shown in chart among Fig. 7 and the impulse phase relation for example.Herein, the detecting information that records by making the laser power phasic Chang, two kinds of parameters of induced representation (evaluation index), that is: the characteristic relation of laser power (Wrigte PW) and the β relation of expression shown in chart among Fig. 5 is with the characteristic relation of phase correction parameter in the laser power (WrigtePW) of expression shown in chart among Fig. 6 and the impulse phase relation.

After this, use by the obtained parameter of the above-mentioned characteristic relation of having obtained, derive the optimum value (SA4) of laser power and pulse width.In addition, judge whether this optimum value after implementing adjustment under the writing speed of expection, can be applicable to the information recording/(SA5) that is carried out with certain quality.Moreover, this adjustment be in the laser power that shines the laser on the recording layer and the pulse width any is adjusted at least, make the interim record condition of laser power and pulse width change corresponding laser power adjustment with parameter (evaluation index) and pulse width adjustment parameter (evaluation index), become the particular value that is fit to carry out with certain quality information recording/.This also can carry out OPC in adjusting.

When the result of determination of above-mentioned SA5 can where applicable, forward the processing of following SA8 to, when it cannot where applicable, set for and make the specific writing speed after writing speed reduces or set record termination (SA6) for, determine whether record termination (SA7), when record is ended, forward the processing of following SA10 to, when setting in that writing speed is reduced, forward the processing of above-mentioned SA5 to.

When the result of determination of above-mentioned SA5 be above-mentioned optimum value go for expecting writing speed the time, judged result and contents processing and parameter (evaluation index) and the information recording/ of adjusting the result in laser disc 10, and are made it corresponding with the media ID of laser disc 10 and are recorded to (SA8) in the storer 127.In this way, keep as record, can thereafter in laser disc 10 enterprising line item of the same race the time, apply flexibly this information.Moreover, also can record employed condition data in the test record corresponding to above-mentioned information.And, also above-mentioned information only can be recorded in any of laser disc 10 or storer 127.In addition, can only record judged result or judge therewith any information of corresponding contents processing, and recording parameters (evaluation index) or utilize any information of the adjustment result that this parameter carries out only.

After this, use the above-mentioned optimum value of obtaining that laser disc 10 is carried out information recording/(SA9).Secondly, make above-mentioned judged result and contents processing be shown in display part 131 (SA10), and finish the information recording/ to the 1st recording layer 11.Moreover, also can be only with judged result or judge therewith corresponding contents processing any be shown in display part 131.

In addition, when other recording layers 12,13 except the 1st recording layer 11 are carried out information recording/, carry out processing as shown in Figure 3.

That is, record information to recording layer 12 except the 1st recording layer 11, at 13 o'clock, carry out processing shown in Figure 3.During this processes, by with previous identical OPC, only be less than number of times in the 1st recording layer 11 with the record number of times, carry out only being the test under laser power adjustment usefulness a kind of test record condition of test record, and with the information regeneration (SB1) that records, detect under the laser irradiation condition parameter (evaluation index) (SB2).In addition, the laser power adjustment is to make laser power (Wrigte PW) phasic Chang and carry out with test record as shown in Figure 4.

Secondly, derive characteristic relation (SB3) by the above-mentioned parameter of obtaining.As this characteristic relation, for example, the characteristic relation of the phase correction parameter in the laser power (Wrigte PW) of induced representation shown in chart among Fig. 8 and the impulse phase relation.

After this, the parameter that utilization is obtained by the characteristic relation of obtaining in the above-mentioned characteristic relation of obtaining and the 1st recording layer 11, impulse phase correction parameter in pulse position skew and the impulse phase relation in other recording layers 12,13 of prediction expression, namely the position of the pulse rise and fall shown in chart among Fig. 9 is offset the characteristic relation (SB4) of the impulse phase correction parameter in (Pulse (Topr, Tlast)) and the impulse phase relation.

Secondly, utilize above-mentioned characteristic relation and derive the optimum value (SB5) of laser power and pulse width.In addition, judge whether this optimum value after implementing adjustment under the writing speed of expection, can be applicable to the information recording/(SB6) that is carried out with certain quality.Moreover, this adjustment be in the laser power that shines the laser on the recording layer and the pulse width any is adjusted at least, make the interim record condition of laser power and pulse width change corresponding laser power adjustment with parameter (evaluation index) and pulse width adjustment parameter (evaluation index), become the particular value that is fit to carry out with certain quality information recording/.This also can carry out OPC in adjusting.

When the result of determination of above-mentioned SB6 can where applicable, forward the processing of following SB9 to, when the result cannot where applicable, setting for to make the specific writing speed after writing speed reduces or set for makes record end (SB7), determine whether record termination (SB8), when record is ended, forward the processing of following SB11 to, when setting in that writing speed is reduced, forward the processing of above-mentioned SB6 to.Moreover writing speed is reduced can not where applicable, also can replace record and end, and again begin to repeat from the processing of above-mentioned SB1.

When the result of determination of above-mentioned SB6 be above-mentioned optimum value go for expecting writing speed the time, judged result and contents processing and parameter (evaluation index) and the information recording/ of adjusting the result in laser disc 10, and are made it corresponding with the media ID of laser disc 10 and are recorded to (SB9) in the storer 127.

After this, use the above-mentioned optimum value of obtaining that laser disc 10 is carried out information recording/(SB10).Secondly, make above-mentioned judged result and contents processing be shown in display part 131 (SB12), and end is to the 2nd or the 3rd recording layer 12,13 information recording/.

According to above-mentioned example, the 1st recording layer 11 is carried out changing with the kind of record condition record and the regeneration of corresponding detecting information, and according to obtained thus test result, derivation is fit to record information to the illuminate condition on the 1st recording layer 11, in addition, kind change number of times with the test record condition is less than the change number of times that is carried out in the test of the 1st recording layer, at the 2nd and the 3rd recording layer 12, carry out record and the regeneration of detecting information on 13, and test result and the 2nd or the 3rd recording layer 12 according to the 1st recording layer 11,13 test result, derivation is fit to record information to the 2nd or the 3rd recording layer 12, illuminate condition on 13, and utilize this illuminate condition to the 2nd or the 3rd recording layer 12,13 carry out information recording/, thereby can shorten to derive the 2nd and the 3rd recording layer 12, the test duration of 13 illuminate condition, so can shorten the test duration before the information recording/, thereby recorded information at short notice.

In addition, in the 2nd or the 3rd recording layer 12,13 test record, only make the test of laser power variation, and do not use more time and test zone to make the test of pulse width variation, therefore can further shorten the test duration.

As mentioned above, in common test record, obtain laser power to the characteristic relation of β in the laser power adjustment in test, thus characteristic relation and derive best laser power; Obtain pulse to the characteristic relation of phase deviation in the pulse width adjustment in testing, characteristic relation is obtained the i.e. strategy of best pulse width thus; And in this example, about the recording layer except the 1st recording layer 11, only carry out laser power adjustment test, and after making the test record conditional number reduce to shorten the test duration, can derive the strategy with optimal laser power and pulse width.

And, according to the optical recorder 100 of this example, can be easy to realize above-mentioned optic recording method.In addition, according to the micro cpu device 125 of this example, can be easy to realize above-mentioned optic recording method.In addition, according to the computer program of this example, using arbitrarily, CPU can be easy to realize above-mentioned optical recorder 100 and optic recording method.

Moreover above-mentioned example is to exemplify to use well-known multilayer DVD to be illustrated as laser disc 10, and when using HD-DVD as laser disc 10, also can utilize same processing and obtains above-mentioned effect.In addition, when using well-known Blu-ray video disc as laser disc 10, because different from the specification of DVD, therefore in the 1st recording layer, the characteristic relation of the laser power (Write PW) of induced representation shown in chart among Figure 10 and asymmetry (Asymmetry) relation, the characteristic relation of the phase correction parameter in the laser power (Write PW) of expression shown in chart among Figure 11 and the amplitude relation, and the position skew (Pulse (Topr of the pulse rise and fall of expression shown in chart among Figure 12, Tlast)) with amplitude relation in the characteristic relation of phase correction parameter, and in the recording layer except the 1st recording layer, obtain the laser power (Write PW) of expression shown in chart among Figure 13 and the characteristic relation of the phase correction parameter in the amplitude relation by test, mutual relationship by above-mentioned characteristic relation, position skew (Pulse (the Topr of the pulse rise and fall in other recording layers of prediction expression shown in chart among Figure 14, Tlast)) with amplitude relation in the characteristic relation of phase correction parameter, so can obtain optimum value in other recording layers.In addition, so-called pulse width adjustment refers to phase deviation, length offset, amplitude excursion with parameter (evaluation index).

Secondly, the 2nd example of the present invention is described.

Apparatus structure in this example is identical with above-mentioned the 1st example, and be with the difference of the 1st example: in the 2nd example, store among the employed CPU125 and the recording layer 12 except the 1st recording layer 11,13 the mutually different computer program of recording processing.In the following description, the part that has a same structure with the 1st example uses same-sign to be illustrated.

That is, in the optical recorder 100 of this example, the information recording/of the 1st recording layer 11 in the laser disc 10 is processed identical with the processing of the 1st example shown in the process flow diagram among Fig. 2.And, recording layer 12 except the 1st recording layer 11,13 information recording/are processed shown in the process flow diagram of Figure 15, by with previous identical OPC, only be less than number of times in the 1st recording layer 11 with the record number of times, carry out only being the test under pulse width adjustment usefulness a kind of test record condition of test record, and with the information regeneration (SC1) that records, detect under the laser irradiation condition parameter (evaluation index) (SC2).In addition, pulse width adjustment test record is to make the pulse width phasic Chang and carry out.

Secondly, derive characteristic relation (SC3) by the above-mentioned parameter of obtaining.As this characteristic relation, for example, the characteristic relation of the impulse phase correction parameter in the position of induced representation pulse rise and fall as shown in Figure 9 skew (Pulse (Topr, Tlast)) and the impulse phase relation.

After this, utilize the characteristic relation of obtaining in the above-mentioned characteristic relation of obtaining and the 1st recording layer 11 and the parameter that obtains, impulse phase correction parameter in other recording layers 12,13 of prediction expression in the position offset relationship of laser power and pulse, namely as shown in Figure 8 laser power (Wrigte PW) and the characteristic relation (SC4) of the phase correction parameter in the impulse phase relation.

Secondly, utilize above-mentioned characteristic relation and derive the optimum value (SC5) of laser power and pulse width.In addition, judge whether this optimum value after implementing adjustment under the writing speed of expection, can be applicable to the information recording/(SC6) that is carried out with certain quality.Moreover, this adjustment be in the laser power that shines the laser on the recording layer and the pulse width any is adjusted at least, make the interim record condition of laser power and pulse width change corresponding laser power adjustment with parameter (evaluation index) and pulse width adjustment parameter (evaluation index), become the particular value that is fit to carry out with certain quality information recording/.This also can carry out OPC in adjusting.

When the result of the judgement of above-mentioned SC6 can where applicable, forward the processing of following SC9 to, when the result cannot where applicable, set for and make the specific writing speed after writing speed reduces or set termination record (SC7) for, determine whether record termination (SC8), when record is ended, forward the processing of following SC11 to, when setting in that writing speed is reduced, forward the processing of above-mentioned SC6 to.Moreover writing speed is reduced can not where applicable, also can replace record and end, and again begin to repeat from the processing of above-mentioned SC1.

The result of determination of above-mentioned SC6 be above-mentioned optimum value go for expecting writing speed the time, judged result and contents processing and parameter (evaluation index) and the information recording/ of adjusting the result in laser disc 10, and are made it corresponding with the media ID of laser disc 10 and are recorded to (SC9) in the storer 127.In this way, keep as record, can thereafter in laser disc 10 enterprising line item of the same race the time, apply flexibly this information.Moreover, also can record employed condition data in the test record corresponding to above-mentioned information.And, also above-mentioned information only can be recorded in any of laser disc 10 or storer 127.In addition, can only record judged result or judge therewith any information of corresponding contents processing, and recording parameters (evaluation index) or utilize any information of the adjustment result that this parameter carries out only.

After this, use the above-mentioned optimum value of obtaining that laser disc 10 is carried out information recording/(SC10).Secondly, make above-mentioned judged result and contents processing be shown in display part 131 (SC12), and end is to the 2nd or the 3rd recording layer 12,13 information recording/.Moreover, also can be only with judged result or judge therewith corresponding contents processing any be shown in display part 131.

According to above-mentioned example, the 1st recording layer 11 is carried out changing with the kind of record condition record and the regeneration of corresponding detecting information, and according to obtained thus test result, derivation is fit to record information to the illuminate condition on the 1st recording layer 11, in addition, kind change number of times with the test record condition is less than the change number of times that is carried out in the test of the 1st recording layer, at the 2nd and the 3rd recording layer 12, carry out record and the regeneration of detecting information on 13, and test result and the 2nd or the 3rd recording layer 12 according to the 1st recording layer 11,13 test result, derivation is fit to record information to the 2nd or the 3rd recording layer 12, illuminate condition on 13, and utilize this illuminate condition to the 2nd or the 3rd recording layer 12,13 carry out information recording/, thereby can shorten to derive the 2nd and the 3rd recording layer 12, the test duration of 13 illuminate condition, so can shorten the test duration before the information recording/, thereby recorded information at short notice.

In addition, in the 2nd or the 3rd recording layer 12,13 test record, only make the test of pulse width variation, therefore can further shorten the test duration.

As mentioned above, in common test record, obtain laser power to the characteristic relation of β in the laser power adjustment in test, thus characteristic relation and derive best laser power; Obtain pulse to the characteristic relation of phase deviation in the pulse width adjustment in testing, characteristic relation is obtained the i.e. strategy of best pulse width thus; And in this example, about the recording layer except the 1st recording layer 11, only carry out pulse width adjustment test, and after making the test record conditional number reduce to shorten the test duration, can derive the strategy with optimal laser power and pulse width.

Moreover, above-mentioned example is to exemplify to use well-known multilayer DVD to be illustrated as laser disc, and when similarly using HD-DVD or well-known Blu-ray video disc as laser disc 10 with the 1st example, also can utilize same processing to obtain above-mentioned effect.

Secondly, the 3rd example of the present invention is described.

Apparatus structure in this example is identical with above-mentioned the 1st example, and be with the difference of the 1st example: in the 3rd example, store each recording layer 11,12 in the laser disc 10,13 the mutually different computer program of recording processing among the employed CPU125.In the following description, the part that has a same structure with the 1st example uses same-sign to be illustrated.

Figure 16 and Figure 17 are recording processing is carried out in explanation to the recording layer in the 3rd example process flow diagrams.The computer program of carrying out this processing is pre-stored in the memory circuit 126 of CPU125, and carries out above-mentioned processing by CPU12.And, in this example, the test processes when recording information to the 1st recording layer 11 of laser disc 10 is with before roughly the same, and the test processes when recording information to recording layer except the 1st recording layer 11, different from the test processes in the 1st recording layer 11, the former can shorten the time.

That is, when recording information to the 1st recording layer 11, carry out the processing shown in the process flow diagram among Figure 16.During this processes, by with previous identical OPC, under following two kinds of test record conditions, test, namely, the laser power adjustment test record of specified conditions number, with the pulse width adjustment test record of specified conditions number, and with the information regeneration (SD1) that records, detect under the laser irradiation condition parameter (evaluation index) (SD2).

For example, as being used for laser power adjustment test record, be laser power be 1mW, 2mW ..., carry out under 10 conditions of 10mW.In addition, the pulse width adjustment is carried out under 10 different conditions similarly with test record.

In addition, as parameter, such as enumerating β (asymmetry), Ear Mucosa Treated by He Ne Laser Irradiation power, impulse phase etc. when the DVD.And the laser power adjustment makes laser power (Wrigte PW) phasic Chang and carries out with test record as shown in Figure 4, and the pulse width adjustment with test record similarly makes the pulse width phasic Chang and carries out.Moreover, when carrying out the above-mentioned parameter detection, use under the situation of the data of the tactful form of in can using storer 127, storing, and for the laser disc 10 of the unknown kind of the data that can't use the tactful form of storing in the storer 127, then carry out well-known Strategy Auto Check processing.

Secondly, derive characteristic relation (SD3) by the above-mentioned parameter of obtaining.As this characteristic relation, the characteristic relation of the impulse phase correction parameter in the position skew (Pulse (Topr, Tlast)) of the characteristic relation of the phase correction parameter in the characteristic relation of the laser power (Wrigte PW) of induced representation shown in chart among Fig. 5 and β relation, the laser power (Wrigte PW) of expression shown in chart among Fig. 6 and the impulse phase relation and the pulse rise and fall of expression shown in chart among Fig. 7 and the impulse phase relation for example.Herein, the detecting information that records by making the laser power phasic Chang, two kinds of parameters of induced representation (evaluation index), that is: the characteristic relation of the laser power shown in the chart (Wrigte PW) and β relation in the presentation graphs 5 is with the characteristic relation of phase correction parameter in the laser power (WrigtePW) of expression shown in chart among Fig. 6 and the impulse phase relation.

After this, use by the obtained parameter of the above-mentioned characteristic relation of having obtained, derive the optimum value (SD4) of laser power and pulse width.In addition, judge whether this optimum value after implementing adjustment under the writing speed of expection, can be applicable to the information recording/(SD5) that is carried out with certain quality.Moreover, this adjustment be in the laser power that shines the laser on the recording layer and the pulse width any is adjusted at least, make the interim record condition of laser power and pulse width change corresponding laser power adjustment with parameter (evaluation index) and pulse width adjustment parameter (evaluation index), become the particular value that is fit to carry out with certain quality information recording/.This also can carry out OPC in adjusting.

When the result of determination of above-mentioned SD5 can where applicable, forward the processing of following SD8 to, when it cannot where applicable, setting for to make the specific writing speed after writing speed reduces or set for makes record end (SD6), determine whether record termination (SD7), when record is ended, forward the processing of following SD10 to, when setting in that writing speed is reduced, forward the processing of above-mentioned SD5 to.

When the result of determination of above-mentioned SD5 be above-mentioned optimum value go for expecting writing speed the time, judged result and contents processing and parameter (evaluation index) and the information recording/ of adjusting the result in laser disc 10, and are made it corresponding with the media ID of laser disc 10 and are recorded to (SD8) in the storer 127.In this way, keep as record, can thereafter in laser disc 10 enterprising line item of the same race the time, apply flexibly this information.Moreover, also can record employed condition data in the test record corresponding to above-mentioned information.And, also above-mentioned information only can be recorded in any of laser disc 10 or storer 127.In addition, can only record judged result or judge therewith any information of corresponding contents processing, and recording parameters (evaluation index) or utilize any information of the adjustment result that this parameter carries out only.

After this, use the above-mentioned optimum value of obtaining that laser disc 10 is carried out information recording/(SD9).Secondly, make above-mentioned judged result and contents processing be shown in display part 131 (SD10), and finish the information recording/ to the 1st recording layer 11.Moreover, also can be only with judged result or judge therewith corresponding contents processing any be shown in display part 131.

In addition, when other recording layers 12,13 except the 1st recording layer 11 are carried out information recording/, carry out the processing shown in process flow diagram among Figure 17.

That is, record information to recording layer 12 except the 1st recording layer 11, at 13 o'clock, carry out processing shown in Figure 17.During this processes, by with previous identical OPC, only be less than conditional number in the 1st recording layer 11 with the record strip number of packages, carry out only being the test under laser power adjustment usefulness a kind of test record condition of test record, and with the information regeneration (SE1) that records, detect under the laser irradiation condition parameter (evaluation index) (SE2).In addition, the laser power adjustment is to make laser power (Wrigte PW) phasic Chang and carry out with test record as shown in Figure 4.Herein, use 10 conditions of using in the test record of the 1st recording layer 11 (1mW ..., 10mW) in 5 conditions carry out test record.

Secondly, derive characteristic relation (SE3) by the above-mentioned parameter of obtaining.As this characteristic relation, for example, the characteristic relation of the phase correction parameter in the laser power (Wrigte PW) of induced representation shown in chart among Fig. 8 and the impulse phase relation.

After this, utilize the characteristic relation of obtaining in the above-mentioned characteristic relation of obtaining and the 1st recording layer 11 and the parameter that obtains, impulse phase correction parameter in pulse position skew and the impulse phase relation in other recording layers 12,13 of prediction expression, namely the position of the pulse rise and fall shown in chart among Fig. 9 is offset the characteristic relation (SE4) of the impulse phase correction parameter in (Pulse (Topr, Tlast)) and the impulse phase relation.

Secondly, utilize above-mentioned characteristic relation and derive the optimum value (SE5) of laser power and pulse width.In addition, judge whether this optimum value after implementing adjustment under the writing speed of expection, can be applicable to the information recording/(SE6) that is carried out with certain quality.Moreover, this adjustment be in the laser power that shines the laser on the recording layer and the pulse width any is adjusted at least, make the interim record condition of laser power and pulse width change corresponding laser power adjustment with parameter (evaluation index) and pulse width adjustment parameter (evaluation index), become the particular value that is fit to carry out with certain quality information recording/.This also can carry out OPC in adjusting.

When the result of determination of above-mentioned SE6 can where applicable, forward the processing of following SE9 to, when the result cannot where applicable, setting for to make the specific writing speed after writing speed reduces or set for makes record end (SE7), determine whether record termination (SE8), when record is ended, forward the processing of following SE11 to, when setting in that writing speed is reduced, forward the processing of above-mentioned SE6 to.Moreover writing speed is reduced can not where applicable, also can replace record and end, and again begin to repeat from the processing of above-mentioned SE1.

When the result of determination of above-mentioned SE6 be above-mentioned optimum value go for expecting writing speed the time, judged result and contents processing and parameter (evaluation index) and the information recording/ of adjusting the result in laser disc 10, and are made it corresponding with the media ID of laser disc 10 and are recorded to (SE9) in the storer 127.

After this, use the above-mentioned optimum value of obtaining that laser disc 10 is carried out information recording/(SE10).Secondly, make above-mentioned judged result and contents processing be shown in display part 131 (SE12), and end is to the 2nd or the 3rd recording layer 12,13 information recording/.

According to above-mentioned example, changing under the corresponding test record condition with 10 conditions, the 1st recording layer 11 is carried out record and the regeneration of detecting information, and according to this test result, derivation is fit to record information to the illuminate condition on the 1st recording layer 11, in addition, at other recording layers 12, on 13, when being less than in the test record of the 1st recording layer 5 of employed conditional numbers with the test record conditional number, carry out record and the regeneration of detecting information, and according to test result and the 2nd or the 3rd recording layer 12 of the 1st recording layer 11,13 test result, derivation is fit to record information to the 2nd or the 3rd recording layer 12, illuminate condition on 13, and utilize this illuminate condition to record information to the 2nd or the 3rd recording layer 12,13, so can shorten to derive the 2nd or the 3rd recording layer 12, the test duration of 13 illuminate condition, therefore can shorten the test duration before the information recording/, thus recorded information at short notice.

In addition, in the 2nd or the 3rd recording layer 12,13 test record, only make the test of laser power variation, and do not use more time and test zone to make the test of pulse width variation, therefore can further shorten the test duration.

As mentioned above, in common test record, obtain laser power to the characteristic relation of β in the laser power adjustment in test, thus characteristic relation and derive best laser power; Obtain pulse to the characteristic relation of phase deviation in the pulse width adjustment in testing, characteristic relation is obtained the i.e. strategy of best pulse width thus; And in this example, about the recording layer except the 1st recording layer 11, only make the conditional number minimizing and carry out laser power adjustment test, and can derive the strategy with optimal laser power and pulse width.

Moreover above-mentioned example is to exemplify to use well-known multilayer DVD to be illustrated as laser disc 10, and when using HD-DVD or well-known Blu-ray video disc as laser disc 10, also can utilize same processing and obtains above-mentioned effect.

Secondly, the 4th example of the present invention is described.

Apparatus structure in this example is identical with above-mentioned the 1st example, and be with the difference of the 1st example: in the 4th example, store recording layer 12 except the 1st recording layer 11,13 the recording processing computer program different from part in the 3rd example among the employed CPU125.In the following description, the part that has a same structure with the 1st example uses same-sign to be illustrated.

That is, in the optical recorder 100 of this example, the information recording/of the 1st recording layer 11 in the laser disc 10 is processed identical with the processing of the 3rd example shown in the process flow diagram among Figure 16.And, recording layer 12 except the 1st recording layer 11,13 information recording/are processed shown in the process flow diagram of Figure 18, by with previous identical OPC, only be less than conditional number in the 1st recording layer 11 with conditional number, carry out only being the test under pulse width adjustment usefulness a kind of test record condition of test record, and with the information regeneration (SF1) that records, detect under the laser irradiation condition parameter (evaluation index) (SF2).In addition, pulse width adjustment test record is to make the pulse width phasic Chang and carry out.Use in the test record of the 1st recording layer 11 5 conditions in employed 10 pulse width conditions to carry out test record herein.

Secondly, derive characteristic relation (SF3) by the above-mentioned parameter of obtaining.As this characteristic relation, for example, the characteristic relation of the impulse phase correction parameter in the position of the pulse rise and fall of induced representation shown in chart among Fig. 9 skew (Pulse (Topr, Tlast)) and the impulse phase relation.

After this, utilize the characteristic relation of obtaining in the above-mentioned characteristic relation of obtaining and the 1st recording layer 11 and the parameter that obtains, the impulse phase correction parameter of laser power and impulse phase relation, the i.e. characteristic relation (SF4) of the phase correction parameter in the laser power shown in chart among Fig. 8 (Wrigte PW) and the impulse phase relation in other recording layers 12,13 of prediction expression.

Secondly, utilize above-mentioned characteristic relation and derive the optimum value (SF5) of laser power and pulse width.In addition, judge whether this optimum value after implementing adjustment under the writing speed of expection, can be applicable to the information recording/(SF6) that is carried out with certain quality.Moreover, this adjustment be in the laser power that shines the laser on the recording layer and the pulse width any is adjusted at least, make the interim record condition of laser power and pulse width change corresponding laser power adjustment with parameter (evaluation index) and pulse width adjustment parameter (evaluation index), become the particular value that is fit to carry out with certain quality recorded information.This also can carry out OPC in adjusting.

When the result of determination of above-mentioned SF6 can where applicable, forward the processing of following SF9 to, when the result cannot where applicable, setting for to make the specific writing speed after writing speed reduces or set for makes record end (SF7), determine whether record termination (SF8), when record is ended, forward the processing of following SF11 to, when setting in that writing speed is reduced, forward the processing of above-mentioned SF6 to.Moreover writing speed is reduced can not where applicable, also can replace record and end, and again begin to repeat from the processing of above-mentioned SF1.

The result of determination of above-mentioned SF6 be above-mentioned optimum value go for expecting writing speed the time, judged result and contents processing and parameter (evaluation index) and the information recording/ of adjusting the result in laser disc 10, and are made it corresponding with the media ID of laser disc 10 and are recorded to (SF9) in the storer 127.In this way, keep as record, can thereafter in laser disc 10 enterprising line item of the same race the time, apply flexibly this information.Moreover, also can record employed condition data in the test record corresponding to above-mentioned information.And, also above-mentioned information only can be recorded in any of laser disc 10 or storer 127.In addition, can only record judged result or judge therewith any information of corresponding contents processing, and recording parameters (evaluation index) or utilize any information of the adjustment result that this parameter carries out only.

After this, use the above-mentioned optimum value of obtaining that laser disc 10 is carried out information recording/(SF10).Secondly, make above-mentioned judged result and contents processing be shown in display part 131 (SF12), and end is to the 2nd or the 3rd recording layer 12,13 information recording/.Moreover, also can be only with judged result or judge therewith corresponding contents processing any be shown in display part 131.

According to above-mentioned example, changing under the corresponding test record condition with 10 conditions, the 1st recording layer 11 is carried out record and the regeneration of detecting information, and according to this test result, derivation is fit to record information to the illuminate condition on the 1st recording layer 11, in addition, at other recording layers 12, on 13, when being less than 5 of conditional numbers employed in the test record of the 1st recording layer with the test record conditional number, carry out record and the regeneration of detecting information, and according to test result and the 2nd or the 3rd recording layer 12 of the 1st recording layer 11,13 test result, derivation is fit to record information to the 2nd or the 3rd recording layer 12, illuminate condition on 13, and utilize this illuminate condition to record information to the 2nd or the 3rd recording layer 12,13, so can shorten to derive the 2nd or the 3rd recording layer 12, the test duration of 13 illuminate condition, therefore can shorten the test duration before the information recording/, thus recorded information at short notice.

In addition, in the 2nd or the 3rd recording layer 12,13 test record, only make the test of pulse width variation, therefore can further shorten the test duration.

As mentioned above, in common test record, obtain laser power to the characteristic relation of β in the laser power adjustment in test, thus characteristic relation and derive best laser power; Obtain pulse to the characteristic relation of phase deviation in the pulse width adjustment in testing, characteristic relation is obtained the i.e. strategy of best pulse width thus; And in this example, about the recording layer except the 1st recording layer 11, only carry out pulse width adjustment test, and after making the test record conditional number reduce to shorten the test duration, can derive the strategy with optimal laser power and pulse width.

Moreover, above-mentioned example is to exemplify to use well-known multilayer DVD to be illustrated as laser disc 10, and with the 1st example similarly, when using HD-DVD or well-known Blu-ray video disc as laser disc 10, also can utilize same processing and obtain above-mentioned effect.

Secondly, the 5th example of the present invention is described.

Apparatus structure in this example is identical with above-mentioned the 1st example, and be with the difference of the 1st example: in the 5th example, store each recording layer 11,12 in the laser disc 10,13 the mutually different computer program of recording processing among the employed CPU125.In the following description, the part that has a same structure with the 1st example uses same-sign to be illustrated.

Figure 19 and Figure 20 are recording processing is carried out in explanation to the recording layer in the 5th example process flow diagrams.The computer program of carrying out this processing is pre-stored in the memory circuit 126 of CPU125, and carries out above-mentioned processing by CPU125.And, in this example, the test processes when recording information to the 1st recording layer 11 of laser disc 10 is with before roughly the same, and the test processes when recording information to recording layer except the 1st recording layer 11, different from the test processes in the 1st recording layer 11, the former can shorten the time.

That is, when recording information to the 1st recording layer 11, carry out the processing shown in the process flow diagram among Figure 19.During this processes, by with previous identical OPC, under following two kinds of test record conditions, test, namely, laser power adjustment test record and pulse width adjustment test record, and with the information regeneration (SG1) that records, detect under the laser irradiation condition parameter (evaluation index) (SG2).At this moment, record is changed with specific times with regeneration.

In addition, as parameter, such as enumerating β (asymmetry), Ear Mucosa Treated by He Ne Laser Irradiation power, impulse phase etc. when the DVD.And the laser power adjustment makes laser power (Wrigte PW) phasic Chang and carries out with test record as shown in Figure 4, and the pulse width adjustment with test record similarly carries out the pulse width phasic Chang.Moreover, when carrying out the above-mentioned parameter detection, use under the situation of the data of the tactful form of in can using storer 127, storing, and for the laser disc 10 of the unknown kind of the data that can't use the tactful form of storing in the storer 127, then carry out well-known Strategy Auto Check processing.

Secondly, derive characteristic relation (SG3) by the above-mentioned parameter of obtaining.As this characteristic relation, the characteristic relation of the impulse phase correction parameter in the position skew (Pulse (Topr, Tlast)) of the characteristic relation of the phase correction parameter in the characteristic relation of the laser power (Wrigte PW) of induced representation shown in chart among Fig. 5 and β relation, the laser power (Wrigte PW) of expression shown in chart among Fig. 6 and the impulse phase relation and the pulse rise and fall of expression shown in chart among Fig. 7 and the impulse phase relation for example.Herein, the detecting information that records by making the laser power phasic Chang, two kinds of parameters of induced representation (evaluation index), that is: the characteristic relation of the laser power shown in the chart (Wrigte PW) and β relation in the presentation graphs 5 is with the characteristic relation of phase correction parameter in the laser power (WrigtePW) of expression shown in chart among Fig. 6 and the impulse phase relation.

After this, use by the obtained parameter of the above-mentioned characteristic relation of having obtained, derive the optimum value (SG4) of laser power and pulse width.In addition, judge whether this optimum value after implementing adjustment under the writing speed of expection, can be applicable to the information recording/(SG5) that is carried out with certain quality.Moreover, this adjustment be in the laser power that shines the laser on the recording layer and the pulse width any is adjusted at least, make the interim record condition of laser power and pulse width change corresponding laser power adjustment with parameter (evaluation index) and pulse width adjustment parameter (evaluation index), become the particular value that is fit to carry out with certain quality information recording/.This also can carry out OPC in adjusting.

When the result of determination of above-mentioned SG5 can where applicable, forward the processing of following SG8 to, when it cannot where applicable, setting for to make the specific writing speed after writing speed reduces or set for makes record end (SG6), determine whether record termination (SG7), when record is ended, forward the processing of following SG10 to, when setting in that writing speed is reduced, forward the processing of above-mentioned SG5 to.

When the result of determination of above-mentioned SG5 be above-mentioned optimum value go for expecting writing speed the time, judged result and contents processing and parameter (evaluation index) and the information recording/ of adjusting the result in laser disc 10, and are made it corresponding with the media ID of laser disc 10 and are recorded to (SG8) in the storer 127.In this way, keep as record, can thereafter in laser disc 10 enterprising line item of the same race the time, apply flexibly this information.Moreover, also can record employed condition data in the test record corresponding to above-mentioned information.And, also above-mentioned information only can be recorded in any of laser disc 10 or storer 127.In addition, can only record judged result or judge therewith any information of corresponding contents processing, and recording parameters (evaluation index) or utilize any information of the adjustment result that this parameter carries out only.

After this, use the above-mentioned optimum value of obtaining that laser disc 10 is carried out information recording/(SG9).Secondly, make above-mentioned judged result and contents processing be shown in display part 131 (SG10), and finish the information recording/ to the 1st recording layer 11.Moreover, also can be only with judged result or judge therewith corresponding contents processing any be shown in display part 131.

In addition, when other recording layers 12,13 except the 1st recording layer 11 are carried out information recording/, carry out the processing shown in the process flow diagram among Figure 20.During this processes, by with previous identical OPC, only the conversion times with record and regeneration is less than conversion times in the 1st recording layer 11, carry out only being the test under laser power adjustment usefulness a kind of test record condition of test record, and with the information regeneration (SH1) that records, detect under the laser irradiation condition parameter (evaluation index) (SH2).In addition, the laser power adjustment is to make laser power (Wrigte PW) phasic Chang and carry out with test record as shown in Figure 4.

Secondly, derive characteristic relation (SH3) by the above-mentioned parameter of obtaining.As this characteristic relation, for example, the characteristic relation of the phase correction parameter in the laser power (Wrigte PW) of induced representation shown in chart among Fig. 8 and the impulse phase relation.

After this, utilize the characteristic relation of obtaining in the above-mentioned characteristic relation of obtaining and the 1st recording layer 11 and the parameter that obtains, impulse phase correction parameter in pulse position skew and the impulse phase relation in other recording layers 12,13 of prediction expression, be the position skew (Pulse (Topr, Tlast)) of the pulse rise and fall shown in the chart in the presentation graphs 9 and the characteristic relation (SH4) of the impulse phase correction parameter in the impulse phase relation.

Secondly, utilize above-mentioned characteristic relation and derive the optimum value (SH5) of laser power and pulse width.In addition, judge whether this optimum value after implementing adjustment under the writing speed of expection, can be applicable to the recorded information (SH6) of being carried out with certain quality.Moreover, this adjustment be in the laser power that shines the laser on the recording layer and the pulse width any is adjusted at least, make the interim record condition of laser power and pulse width change corresponding laser power adjustment with parameter (evaluation index) and pulse width adjustment parameter (evaluation index), become the particular value that is fit to carry out with certain quality information recording/.This also can carry out OPC in adjusting.

When the result of determination of above-mentioned SH6 can where applicable, forward the processing of following SH9 to, when the result cannot where applicable, setting for to make the specific writing speed after writing speed reduces or set for makes record end (SH7), determine whether record termination (SH8), when record is ended, forward the processing of following SH11 to, when setting in that writing speed is reduced, forward the processing of above-mentioned SH6 to.Moreover writing speed is reduced can not where applicable, also can replace record and end, and again begin to repeat from the processing of above-mentioned SH1.

When the result of determination of above-mentioned SH6 be above-mentioned optimum value go for expecting writing speed the time, judged result and contents processing and parameter (evaluation index) and the information recording/ of adjusting the result in laser disc 10, and are made it corresponding with the media ID of laser disc 10 and are recorded to (SH9) in the storer 127.

After this, use the above-mentioned optimum value of obtaining that laser disc 10 is carried out information recording/(SH10).Secondly, make above-mentioned judged result and contents processing be shown in display part 131 (SH12), and end is to the 2nd or the 3rd recording layer 12,13 information recording/.

According to above-mentioned example, the record that under multiple test record condition the 1st recording layer 11 is carried out detecting information is during with regeneration, with specific times this record is changed with regeneration, and according to this test result, derivation is fit to record information to the illuminate condition on the 1st recording layer 11, in addition, at other recording layers 12, the record that carries out detecting information on 13 is during with regeneration, be less than number of times in the 1st recording layer 11 with conversion times, this record is changed with regeneration, and according to test result and the 2nd or the 3rd recording layer 12 of the 1st recording layer 11,13 test result, derivation is fit to record information to the illuminate condition on the 2nd or the 3rd recording layer, and utilize this illuminate condition to record information to the 2nd or the 3rd recording layer 12,13, so can shorten to derive the 2nd or the 3rd recording layer 12, the test duration of 13 illuminate condition, therefore can shorten the test duration before the information recording/, thus recorded information at short notice.

In addition, in the 2nd or the 3rd recording layer 12,13 test record, only make the test of laser power variation, and do not use more time and test zone to make the test of pulse width variation, therefore can further shorten the test duration.

As mentioned above, in common test record, obtain laser power to the characteristic relation of β in the laser power adjustment in test, thus characteristic relation and derive best laser power; Obtain pulse to the characteristic relation of phase deviation in the pulse width adjustment in testing, characteristic relation is obtained the i.e. strategy of best pulse width thus; And in this example, about the recording layer except the 1st recording layer 11, the conversion times of record and regeneration is reduced and carry out the laser power adjustment with test, and can derive and have best laser power and the strategy of pulse width.

Moreover above-mentioned example is to exemplify to use well-known multilayer DVD to be illustrated as laser disc 10, and when using HD-DVD or well-known Blu-ray video disc as laser disc 10, also can utilize same processing and obtains above-mentioned effect.

Secondly, the 6th example of the present invention is described.

Apparatus structure in this example is identical with above-mentioned the 1st example, and be with the difference of the 1st example: in the 6th example, store recording layer 12 except the 1st recording layer 11,13 the recording processing computer program different from part in the 5th example among the employed CPU125.In the following description, use same-sign to be illustrated with the part of the 1st example same structure.

That is, in the optical recorder 100 in this example, the information recording/of the 1st recording layer 11 in the laser disc 10 is processed identical with the processing of the 5th example shown in the process flow diagram among Figure 19.And, recording layer 12 except the 1st recording layer 11,13 information recording/are processed shown in the process flow diagram of Figure 21, by with previous identical OPC, only the conversion times with record and regeneration is less than conversion times in the 1st recording layer 11, carry out only being the test under pulse width adjustment usefulness a kind of test record condition of test record, and with the information regeneration (SI1) that records, detect under the laser irradiation condition parameter (evaluation index) (SI2).In addition, pulse width adjustment test record is to make the pulse width phasic Chang and carry out.

Secondly, derive characteristic relation (SI3) by the above-mentioned parameter of obtaining.As this characteristic relation, for example, the characteristic relation of the impulse phase correction parameter in the position of the pulse rise and fall of induced representation shown in chart among Fig. 9 skew (Pulse (Topr, Tlast)) and the impulse phase relation.

After this, the parameter that utilization is obtained by the characteristic relation of obtaining in the above-mentioned characteristic relation of obtaining and the 1st recording layer 11, the relation of pulse position skew and impulse phase correction parameter, the i.e. characteristic relation (SI4) of the phase correction parameter in the laser power shown in the chart (Wrigte PW) and the impulse phase relation in the presentation graphs 8 in other recording layers 12,13 of prediction expression.

Secondly, utilize above-mentioned characteristic relation and derive the optimum value (SI5) of laser power and pulse width.In addition, judge whether this optimum value after implementing adjustment under the writing speed of expection, can be applicable to the recorded information (SI6) of being carried out with certain quality.Moreover, this adjustment be in the laser power that shines the laser on the recording layer and the pulse width any is adjusted at least, make the interim record condition of laser power and pulse width change corresponding laser power adjustment with parameter (evaluation index) and pulse width adjustment parameter (evaluation index), become the particular value that is fit to the certain quality recorded information.This also can carry out OPC in adjusting.

When the result of determination of above-mentioned SI6 can where applicable, forward the processing of following SI9 to, when the result cannot where applicable, setting for to make the specific writing speed after writing speed reduces or set for makes record end (SI7), determine whether record termination (SI8), when record is ended, forward the processing of following SI11 to, when setting in that writing speed is reduced, forward the processing of above-mentioned SI6 to.Moreover writing speed is reduced can not where applicable, also can replace record and end, and again begin to repeat from the processing of above-mentioned SI1.

The result of determination of above-mentioned SI6 be above-mentioned optimum value go for expecting writing speed the time, judged result and contents processing and parameter (evaluation index) and the information recording/ of adjusting the result in laser disc 10, and are made it corresponding with the media ID of laser disc 10 and are recorded to (SI9) in the storer 127.In this way, keep as record, can thereafter in laser disc 10 enterprising line item of the same race the time, apply flexibly this information.Moreover, also can record employed condition data in the test record corresponding to above-mentioned information.And, also above-mentioned information only can be recorded in any of laser disc 10 or storer 127.In addition, can only record judged result or judge therewith any information of corresponding contents processing, and recording parameters (evaluation index) or utilize any information of the adjustment result of this parameter only.

After this, use the above-mentioned optimum value of obtaining that laser disc 10 is carried out information recording/(SI10).Secondly, make above-mentioned judged result and contents processing be shown in display part 131 (SI12), and end is to the 2nd or the 3rd recording layer 12,13 information recording/.Moreover, also can be only with judged result or judge therewith corresponding contents processing any be shown in display part 131.

According to above-mentioned example, the record that under multiple test record condition the 1st recording layer 11 is carried out detecting information is during with regeneration, with specific times this record is changed with regeneration, and according to this test result, derivation is fit to record information to the illuminate condition on the 1st recording layer 11, in addition, at other recording layers 12, the record that carries out detecting information on 13 is during with regeneration, be less than number of times in the 1st recording layer 11 with conversion times, this record is changed with regeneration, and according to test result and the 2nd or the 3rd recording layer 12 of the 1st recording layer 11,13 test result, derivation is fit to record information to the illuminate condition on the 2nd or the 3rd recording layer, and utilize this illuminate condition to record information to the 2nd or the 3rd recording layer 12,13, so can shorten to derive the 2nd and the 3rd recording layer 12, the test duration of 13 illuminate condition, therefore can shorten the test duration before the information recording/, thus recorded information at short notice.

In addition, in the 2nd or the 3rd recording layer 12,13 test record, only make the test of pulse width variation, therefore can further shorten the test duration.

As mentioned above, in common test record, obtain laser power to the characteristic relation of β in the laser power adjustment in test, thus characteristic relation and derive best laser power; Obtain pulse to the characteristic relation of phase deviation in the pulse width adjustment in testing, characteristic relation is obtained the i.e. strategy of best pulse width thus; And in this example, about the recording layer except the 1st recording layer 11, only carry out pulse width adjustment test, and after making the test record conditional number reduce to shorten the test duration, can derive the strategy with optimal laser power and pulse width.

Moreover, above-mentioned example is to exemplify to use well-known multilayer DVD to be illustrated as laser disc 10, and with the 1st example similarly, when using HD-DVD or well-known Blu-ray video disc as laser disc 10, also can utilize same processing and obtain above-mentioned effect.

Secondly, the 7th example of the present invention is described.

Apparatus structure in this example is identical with above-mentioned the 1st example, and be with the difference of the 1st example: in the 7th example, store each recording layer 11,12 in the laser disc 10,13 the mutually different computer program of recording processing among the employed CPU125.In the following description, the part that has a same structure with the 1st example uses same-sign to be illustrated.

Figure 22 and Figure 23 are recording processing is carried out in explanation to the recording layer in the 7th example process flow diagrams.The computer program of carrying out this processing is pre-stored in the memory circuit 126 of CPU125, and carries out above-mentioned processing by CPU125.And, in this example, the test processes when recording information to the 1st recording layer 11 of laser disc 10 is with before roughly the same, and the test processes when recording information to recording layer except the 1st recording layer 11, different from the test processes in the 1st recording layer 11, the former can shorten the time.

That is, when recording information to the 1st recording layer 11, carry out the processing shown in the process flow diagram among Figure 22.During this processes, by with previous identical OPC, under following two kinds of test record conditions, test, namely, laser power adjustment test record and pulse width adjustment test record, and with the information regeneration (SJ1) that records, detect under the laser irradiation condition parameter (evaluation index) (SJ2).At this moment, will record with regeneration as 1 group, and carry out this setting with specific times.

In addition, as parameter, such as enumerating β (asymmetry), Ear Mucosa Treated by He Ne Laser Irradiation power, impulse phase etc. when the DVD.And the laser power adjustment makes laser power (Wrigte PW) phasic Chang and carries out with test record as shown in Figure 4, and the pulse width adjustment with test record similarly makes the pulse width phasic Chang and carries out.Moreover, when carrying out the above-mentioned parameter detection, use under the situation of the data of the tactful form of in can using storer 127, storing, and for the laser disc 10 of the unknown kind of the data that can't use the tactful form that stores in the storer 127, then carry out well-known Strategy Auto Check processing.

Secondly, derive characteristic relation (SJ3) by the above-mentioned parameter of obtaining.As this characteristic relation, for example the characteristic relation of the laser power (Wrigte PW) of induced representation shown in chart among Fig. 5 and β relation, the laser power (Wrigte PW) of expression shown in chart among Fig. 6 and impulse phase are the characteristic relation of the impulse phase correction parameter in position skew (Pulse (Topr, Tlast)) and the impulse phase relation of the characteristic relation of the phase correction parameter in the position offset relationship of pulse rise and fall and the pulse rise and fall of expression shown in chart among Fig. 7.Herein, the detecting information that records by making the laser power phasic Chang, two kinds of parameters of induced representation (evaluation index), that is: the characteristic relation of the laser power shown in the chart (Wrigte PW) and β relation in the presentation graphs 5 is with the characteristic relation of phase correction parameter in the laser power shown in the chart in the presentation graphs 6 (Wrigte PW) and the impulse phase relation.

After this, use by the obtained parameter of the above-mentioned characteristic relation of having obtained, derive the optimum value (SJ4) of laser power and pulse width.In addition, judge whether this optimum value after implementing adjustment under the writing speed of expection, can be applicable to the information recording/(SJ5) that is carried out with certain quality.Moreover, this adjustment be in the laser power that shines the laser on the recording layer and the pulse width any is adjusted at least, make the interim record condition of laser power and pulse width change corresponding laser power adjustment with parameter (evaluation index) and pulse width adjustment parameter (evaluation index), become the particular value that is fit to carry out with certain quality information recording/.This also can carry out OPC in adjusting.

When the result of determination of above-mentioned SJ5 can where applicable, forward the processing of following SJ8 to, when it cannot where applicable, setting for to make the specific writing speed after writing speed reduces or set for makes record end (SJ6), determine whether record termination (SJ7), when record is ended, forward the processing of following SJ10 to, when setting in that writing speed is reduced, forward the processing of above-mentioned SJ5 to.

When the result of determination of above-mentioned SJ5 be above-mentioned optimum value go for expecting writing speed the time, judged result and contents processing and parameter (evaluation index) and the information recording/ of adjusting the result in laser disc 10, and are made it corresponding with the media ID of laser disc 10 and are recorded to (SJ8) in the storer 127.In this way, keep as record, can thereafter in laser disc 10 enterprising line item of the same race the time, apply flexibly this information.Moreover, also can record employed condition data in the test record corresponding to above-mentioned information.And, also above-mentioned information only can be recorded in any of laser disc 10 or storer 127.In addition, can only record judged result or judge therewith any information of corresponding contents processing, and recording parameters (evaluation index) or utilize any information of the adjustment result that this parameter carries out only.

After this, use the above-mentioned optimum value of obtaining that laser disc 10 is carried out information recording/(SJ9).Secondly, make above-mentioned judged result and contents processing be shown in display part 131 (SJ10), and finish the information recording/ to the 1st recording layer 11.Moreover, also can be only with judged result or judge therewith corresponding contents processing any be shown in display part 131.

In addition, when other recording layers 12,13 except the 1st recording layer 11 are carried out information recording/, carry out the processing shown in the process flow diagram among Figure 23.During this processes, by with previous identical OPC, only the number of times number of times that arranges with record and regeneration is less than the number of times that arranges in the 1st recording layer 11, carry out only being the test under laser power adjustment usefulness a kind of test record condition of test record, and with the information regeneration (SK1) that records, detect under the laser irradiation condition parameter (evaluation index) (SK2).In addition, the laser power adjustment is to make laser power (WrigtePW) phasic Chang and carry out with test record as shown in Figure 4.

Secondly, derive characteristic relation (SK3) by the above-mentioned parameter of obtaining.As this characteristic relation, for example, the characteristic relation of the phase correction parameter in the laser power (Wrigte PW) of induced representation shown in chart among Fig. 8 and the impulse phase relation.

After this, utilize the characteristic relation of obtaining in the above-mentioned characteristic relation of obtaining and the 1st recording layer 11 and the parameter that obtains, impulse phase correction parameter in pulse position skew and the impulse phase relation in other recording layers 12,13 of prediction expression, be the position skew (Pulse (Topr, Tlast)) of the pulse rise and fall shown in the chart in the presentation graphs 9 and the characteristic relation (SK4) of the impulse phase correction parameter in the impulse phase relation.

Secondly, utilize above-mentioned characteristic relation and derive the optimum value (SK5) of laser power and pulse width.In addition, judge whether this optimum value after implementing adjustment under the writing speed of expection, can be applicable to the information recording/(SK6) that is carried out with certain quality.Moreover, this adjustment be in the laser power that shines the laser on the recording layer and the pulse width any is adjusted at least, make the interim record condition of laser power and pulse width change corresponding laser power adjustment with parameter (evaluation index) and pulse width adjustment parameter (evaluation index), become the particular value that is fit to carry out with certain quality information recording/.This also can carry out OPC in adjusting.

When the result of determination of above-mentioned SK6 can where applicable, forward the processing of following SK9 to, when the result cannot where applicable, setting for to make the specific writing speed after writing speed reduces or set for makes record end (SK7), determine whether record termination (SK8), when record is ended, forward the processing of following SK11 to, when setting in that writing speed is reduced, forward the processing of above-mentioned SK6 to.Moreover writing speed is reduced can not where applicable, also can replace record and end, and again begin to repeat from the processing of above-mentioned SK1.

When the result of determination of above-mentioned SK6 be above-mentioned optimum value go for expecting writing speed the time, judged result and contents processing and parameter (evaluation index) and the information recording/ of adjusting the result in laser disc 10, and are made it corresponding with the media ID of laser disc 10 and are recorded to (SK9) in the storer 127.

After this, use the above-mentioned optimum value of obtaining that laser disc 10 is carried out information recording/(SK10).Secondly, make above-mentioned judged result and contents processing be shown in display part 131 (SK12), and end is to the 2nd or the 3rd recording layer 12,13 information recording/.

According to above-mentioned example, the 1st recording layer is arranged record and the regeneration of changing the detecting information that consists of by the stage of record condition more than 11 time, and according to this test result, derivation is fit to record information to the illuminate condition on the 1st recording layer 11, in addition, the number of times that arranges that detecting information in the test that number of times is less than the 1st recording layer 11 is set with record and regeneration, at other recording layers 12 except the 1st recording layer 11, carry out record and the regeneration of detecting information on 13, and according to test result and the 2nd or the 3rd recording layer 12 of the 1st recording layer 11,13 test result, derivation is fit to record information to the 2nd or the 3rd recording layer 12, illuminate condition on 13, and utilize this illuminate condition to record information to the 2nd or the 3rd recording layer 12,13, so can shorten to derive the 2nd and the 3rd recording layer 12, the test duration of 13 illuminate condition, therefore can shorten the test duration before the information recording/, thus recorded information at short notice.

In addition, in the 2nd or the 3rd recording layer 12,13 test record, only make the test of laser power variation, and do not use more time and test zone to make the test of pulse width variation, therefore can further shorten the test duration.

As mentioned above, in common test record, obtain laser power to the characteristic relation of β in the laser power adjustment in test, thus characteristic relation and derive best laser power; Obtain pulse to the characteristic relation of phase deviation in the pulse width adjustment in testing, characteristic relation is obtained the i.e. strategy of best pulse width thus; And in this example, about the recording layer except the 1st recording layer 11, will record with regeneration as 1 group, this group number is reduced and carry out the laser power adjustment with test, can derive the strategy with optimal laser power and pulse width.

Moreover above-mentioned example is to exemplify to use well-known multilayer DVD to be illustrated as laser disc 10, and when using HD-DVD or well-known Blu-ray video disc as laser disc 10, also can utilize same processing and obtains above-mentioned effect.

Secondly, the 8th example of the present invention is described.

Apparatus structure in this example is identical with above-mentioned the 1st example, and be with the difference of the 1st example: in the 8th example, store recording layer 12 except the 1st recording layer 11,13 the recording processing computer program different from part in the 7th example among the employed CPU125.In the following description, use same-sign to be illustrated with the part of the 1st example same structure.

That is, in the optical recorder 100 in this example, the information recording/of the 1st recording layer 11 in the laser disc 10 is processed identical with the processing of the 7th example shown in the process flow diagram among Figure 22.And, recording layer 12 except the 1st recording layer 11,13 information recording/are processed shown in the process flow diagram of Figure 24, by with previous identical OPC, only the number of times that arranges with record and regeneration is less than the number of times that arranges in the 1st recording layer 11, carry out only being the test under pulse width adjustment usefulness a kind of test record condition of test record, and with the information regeneration (SL1) that records, detect under the laser irradiation condition parameter (evaluation index) (SL2).In addition, pulse width adjustment test record is to make the pulse width phasic Chang and carry out.

Secondly, derive characteristic relation (SL3) by the above-mentioned parameter of obtaining.As this characteristic relation, for example, the characteristic relation of the impulse phase correction parameter in the position of the pulse rise and fall of induced representation shown in chart among Fig. 9 skew (Pulse (Topr, Tlast)) and the impulse phase relation.

After this, the parameter that utilization is obtained by the characteristic relation of obtaining in the above-mentioned characteristic relation of obtaining and the 1st recording layer 11, impulse phase correction parameter in other recording layers 12,13 of prediction expression in laser power and the impulse phase relation, the i.e. characteristic relation (SL4) of the phase correction parameter in the laser power shown in the chart (Wrigte PW) and the impulse phase relation in the presentation graphs 8.

Secondly, utilize above-mentioned characteristic relation and derive the optimum value (SL5) of laser power and pulse width.In addition, judge whether this optimum value after implementing adjustment under the writing speed of expection, can be applicable to the recorded information (SL6) of being carried out with certain quality.Moreover, this adjustment be in the laser power of the laser that shines recording layer and the pulse width any is adjusted at least, make the interim record condition of laser power and pulse width change corresponding laser power adjustment with parameter (evaluation index) and pulse width adjustment parameter (evaluation index), become the particular value that is fit to the certain quality recorded information.This also can carry out OPC in adjusting.

When the result of determination of above-mentioned SL6 can where applicable, forward the processing of following SL9 to, when the result cannot where applicable, setting for to make the specific writing speed after writing speed reduces or set for makes record end (SL7), determine whether record termination (SL8), when record is ended, forward the processing of following SL11 to, when setting when writing speed is reduced, forward the processing of above-mentioned SL6 to.Moreover writing speed is reduced can not where applicable, also can replace record and end, and again begin to repeat from the processing of above-mentioned SL1.

The result of determination of above-mentioned SL6 be above-mentioned optimum value go for expecting writing speed the time, judged result and contents processing and parameter (evaluation index) and the information recording/ of adjusting the result in laser disc 10, and are made it corresponding with the media ID of laser disc 10 and are recorded to (SL9) in the storer 127.In this way, keep as record, can thereafter in laser disc 10 enterprising line item of the same race the time, apply flexibly this information.Moreover, also can record employed condition data in the test record corresponding to above-mentioned information.And, also above-mentioned information only can be recorded in any of laser disc 10 or storer 127.In addition, can only record judged result or judge therewith any information of corresponding contents processing, and recording parameters (evaluation index) or use any information of the adjustment result of this parameter only.

After this, use the above-mentioned optimum value of obtaining that laser disc 10 is carried out information recording/(SL10).Secondly, make above-mentioned judged result and contents processing be shown in display part 131 (SL12), and end is to the 2nd or the 3rd recording layer 12,13 information recording/.Moreover, also can be only with judged result or judge therewith corresponding contents processing any be shown in display part 131.

According to above-mentioned example, the 1st recording layer is arranged record and the regeneration of changing the detecting information that consists of by the stage of record condition more than 11 time, and according to this test result, derivation is fit to record information to the illuminate condition on the 1st recording layer 11, in addition, the number of times that arranges that is less than detecting information in the test of the 1st recording layer 11 with the number of times of setting of record and regeneration, at other recording layers 12 except the 1st recording layer 11, carry out record and the regeneration of detecting information on 13, and according to test result and the 2nd or the 3rd recording layer 12 of the 1st recording layer 11,13 test result, derivation is fit to record information to the 2nd or the 3rd recording layer 12, illuminate condition on 13, and utilize this illuminate condition to record information to the 2nd or the 3rd recording layer 12,13, so can shorten to derive the 2nd and the 3rd recording layer 12, the test duration of 13 illuminate condition, therefore can shorten the test duration before the information recording/, thus recorded information at short notice.

In addition, in the 2nd or the 3rd recording layer 12,13 test record, only make the test of pulse width variation, therefore can further shorten the test duration.

As mentioned above, in common test record, obtain laser power to the characteristic relation of β in the laser power adjustment in test, thus characteristic relation and derive best laser power; Obtain pulse to the characteristic relation of phase deviation in the pulse width adjustment in testing, characteristic relation is obtained the i.e. strategy of best pulse width thus; And in this example, about the recording layer except the 1st recording layer 11, only carry out pulse width adjustment test, and after making the test record conditional number reduce to shorten the test duration, can derive the strategy with optimal laser power and pulse width.

Moreover, above-mentioned example is to exemplify to use well-known multilayer DVD to be illustrated as laser disc 10, and with the 1st example similarly, when using HD-DVD or well-known Blu-ray video disc as laser disc 10, also can utilize same processing and obtain above-mentioned effect.

In addition, above-mentioned example only is a specific example of the present invention, and the present invention is not limited to the structure of above-mentioned example.For example, above-mentioned each example is to adjust later on processing obtaining optimum value, and there is no need to adjust when processing, and also can save this and adjust and process.And, as required, the Graphics Processing of the processing that also can preferably carry out the reduction writing speed or end to record, judgement result etc. and this recording of information processing etc.

In addition, above-mentioned each example is as benchmark take the 1st recording layer 11, obtain at short notice the optimum value of other recording layers 12,13 being carried out Ear Mucosa Treated by He Ne Laser Irradiation, also can take the recording layer except the 1st recording layer as benchmark, obtain at short notice the optimum value of other recording layers being carried out Ear Mucosa Treated by He Ne Laser Irradiation.In addition, above-mentioned each example is i.e. the 1st recording layer 11 from the position of leaving coplanar laser illumination, until near i.e. the 3rd recording layer 13 in the position of shadow surface, carry out successively information recording/, but be not limited to this, also can begin to carry out information recording/from the recording layer except the 1st recording layer 11.

In addition, other examples are described.

Figure 27 makes explanation carry out the process flow diagram of recording processing to the recording layer in the 1st example.The computer program of carrying out this processing is pre-stored in the memory circuit 126 of CPU125, and carries out above-mentioned processing by CPU125.In addition, in this example, the test processes when recording data to the 1st recording layer 11 of laser disc 10 is with before roughly the same, and the test processes when recording data to recording layer except the 1st recording layer 11, different from the test processes in the 1st recording layer 11, the former can shorten the time.

That is, when recording data to the 1st recording layer 11, carry out processing shown in Figure 27.When processing beginning, judge on the 1st recording layer 11 of laser disc 10, whether to record (SA1).When recording information to the recording layer except the 1st recording layer 11, forward the processing of following SA9 to; When recording data to the 1st recording layer 11, by with previous identical recording laser intensity optimization (the OPC:Optimum Power Control that makes, hereinafter referred to as OPC), utilize to adjust and use data pattern, carry out test record is used in the laser power adjustment with test record and pulse width adjustment test with specific times, and with the information regeneration (SA2) that records, detect under the laser irradiation condition parameter (eigenwert) (SA3).As this parameter, enumerate β (asymmetry), Ear Mucosa Treated by He Ne Laser Irradiation power, impulse phase etc. during such as DVD.And the laser power adjustment makes laser power (Wrigte PW) phasic Chang and carries out with test record as shown in figure 28, and the pulse width adjustment with test record similarly makes the pulse width phasic Chang and carries out.Moreover, when carrying out the above-mentioned parameter detection, use under the situation of the data of the tactful form of in can using storer 127, storing, and for the laser disc 10 of the unknown kind of the data that can't use the tactful form of storing in the storer 127, then carry out well-known Strategy Auto Check processing.

Secondly, derive characteristic relation (SA4) by the above-mentioned parameter of obtaining.As this characteristic relation, the characteristic relation of the impulse phase correction parameter in the position skew (Pulse (Topr, Tlast)) of the characteristic relation of the phase correction parameter in the characteristic relation of the laser power (Wrigte PW) of induced representation shown in chart among Figure 29 and β relation, the laser power (Wrigte PW) of expression shown in chart among Figure 30 and the impulse phase relation and the pulse rise and fall of expression shown in chart among Figure 31 and the impulse phase relation for example.Herein, the test data that records by making the laser power phasic Chang, two kinds of parameters of induced representation, that is: the characteristic relation of the laser power (WrigtePW) shown in the chart and β relation among expression Figure 29 is with the characteristic relation of phase correction parameter in the laser power (Wrigte PW) shown in the chart among expression Figure 30 and the impulse phase relation.

After this, use is by the obtained parameter of the above-mentioned characteristic relation of having obtained, derive the best titime impulsive condition (SA5) of laser power and pulse width, and utilize this best titime impulsive condition, the 1st recording layer 11 is carried out actual information recording/(SA6).

Secondly, judge in data recording process, whether be necessary change record layer (SA7), when necessary change record layer, forward the processing of above-mentioned SA1 to; In the time need not changing, judge whether information recording/finishes (SA8).When this result of determination is information recording/when not yet finishing, forward the processing of above-mentioned SA6 to; When result of determination is information recording/when having finished, end process.

On the other hand, when the result of determination of above-mentioned SA1 is when the recording layer except the 1st recording layer 11 carries out information recording/, at first, by with previous identical OPC, and the adjustment of using is employed identical during with the test of data pattern and the 1st recording layer 11, only be less than number of times in the 1st recording layer 11 with number of times, carry out the only laser power adjustment test of test record, and with the information regeneration (SA9) that records, detect under the laser irradiation condition parameter (eigenwert) (SA10).In addition, the laser power adjustment makes laser power (Wrigte PW) phasic Chang and carries out with test record as shown in figure 28.

Secondly, derive characteristic relation (SA11) by the above-mentioned parameter of obtaining.As this characteristic relation, the characteristic relation of the phase correction parameter in the laser power (Wrigte PW) of induced representation shown in chart among Figure 32 and the impulse phase relation for example.When in this way the 2nd recording layer 12 being recorded, only derive the characteristic relation different with the 1st recording layer 11, so also can realize time shorten.

After this, the parameter that use is obtained by the characteristic relation of obtaining in the above-mentioned characteristic relation of obtaining and the 1st recording layer 11, impulse phase correction parameter in pulse position skew and the impulse phase relation of other recording layers 12 of prediction expression, the characteristic relation (SA12) of the impulse phase correction parameter in the position skew (Pulse (Topr, Tlast)) that namely represents the pulse rise and fall shown in the chart among Figure 33 and the relation of impulse phase.

Secondly, use above-mentioned characteristic relation and the best titime impulsive condition (SA13) of deriving laser power and pulse width.After this, utilize the above-mentioned best titime impulsive condition of obtaining, laser disc 10 is carried out information recording/(SA6).

Secondly, judge in data recording process, whether be necessary change record layer (SA7), when necessary change record layer, forward the processing of above-mentioned SA1 to; In the time need not changing, judge whether information recording/finishes (SA8).When this result of determination is information recording/when not yet finishing, forward the processing of above-mentioned SA6 to; When result of determination is information recording/when having finished, end process.

According to above-mentioned example, before the information recording/of reality, carry out test record at the 1st recording layer 11, and within the specific test duration, derive the recording impulse condition that is fit to the 1st recording layer 11, and in the 2nd recording layer 12, only make the test of laser power variation, and do not use more time and test zone to make the test of pulse width variation, within the test duration was less than time in the 1st recording layer 11, therefore the derived record impulsive condition can shorten to derive test duration of the recording impulse condition of the 2nd recording layer 12, so can shorten the test duration before the information recording/, thereby recorded information at short notice.

Claims (4)

1. evaluation indicator acquiring method is characterized in that:

It is the evaluation indicator acquiring method of optic recording method, this optic recording method be by optical recorder when the recording medium that comprises multilayer with a recording layer and other recording layer is carried out Ear Mucosa Treated by He Ne Laser Irradiation and recorded information, after the test zone record detecting information of each recording layer, this detecting information that records is regenerated, to obtain to determine the evaluation index of laser irradiation condition, and utilize this evaluation index to adjust the illuminate condition of laser

Above-mentioned optical recorder is carried out following steps:

The detecting information recording step on an above-mentioned recording layer, makes the record condition phasic Chang of laser power and pulse width, and the record detecting information;

When the detecting information that is recorded by above-mentioned detecting information recording step is regenerated, try to achieve the step of the characteristic relation 3 of the position skew of characteristic relation 1, laser power and the impulse phase of laser power and β or asymmetry relation or the characteristic relation 2 of the phase correction parameter in the amplitude relation and pulse rise and fall and the phase correction parameter in impulse phase or the amplitude relation;

The 2nd detecting information recording step on above-mentioned other recording layer, makes the record condition phasic Chang of laser power, and the record detecting information;

The detecting information that records by above-mentioned the 2nd detecting information recording step is regenerated, try to achieve the step of the characteristic relation 4-1 of the laser power of above-mentioned other recording layer and the phase correction parameter in impulse phase or the amplitude relation;

Utilize 3 predictions of above-mentioned characteristic relation as the step of the characteristic relation 5 of the position skew of the pulse rise and fall of other recording layer and the phase correction parameter in impulse phase or the amplitude relation; And

Utilize above-mentioned characteristic relation 4-1 and characteristic relation 5, determine the step of pulse width condition in above-mentioned other recording layer.

2. evaluation indicator acquiring method is characterized in that:

It is the evaluation indicator acquiring method of optic recording method, this optic recording method be by optical recorder when the recording medium that comprises multilayer with a recording layer and other recording layer is carried out Ear Mucosa Treated by He Ne Laser Irradiation and recorded information, after the test zone record detecting information of each recording layer, this detecting information that records is regenerated, to obtain to determine the evaluation index of laser irradiation condition, and utilize this evaluation index to adjust the illuminate condition of laser

Above-mentioned optical recorder is carried out following steps:

The detecting information recording step on an above-mentioned recording layer, makes the record condition phasic Chang of laser power and pulse width, and the record detecting information;

When the detecting information that is recorded by above-mentioned detecting information recording step is regenerated, try to achieve the step of the characteristic relation 3 of the position skew of characteristic relation 1, laser power and the impulse phase of laser power and β or asymmetry relation or the characteristic relation 2 of the phase correction parameter in the amplitude relation and pulse rise and fall and the phase correction parameter in impulse phase or the amplitude relation;

The 2nd detecting information recording step on above-mentioned other recording layer, makes the record condition phasic Chang of laser power, and the record detecting information;

The detecting information that records by above-mentioned the 2nd detecting information recording step is regenerated, try to achieve the step of the characteristic relation 4-1 of the laser power of above-mentioned other recording layer and the phase correction parameter in impulse phase or the amplitude relation;

The step of the laser power of trying to achieve above-mentioned other recording layer and the characteristic relation 4-2 of β or asymmetry relation;

Utilize 3 predictions of above-mentioned characteristic relation as the step of the characteristic relation 5 of the position skew of the pulse rise and fall of other recording layer and the phase correction parameter in impulse phase or the amplitude relation; And

From the optimum value of above-mentioned characteristic relation 4-2 derivation laser power, utilize above-mentioned characteristic relation 4-1 and characteristic relation 5, determine the step of pulse width condition in above-mentioned other recording layer.

3. optical recorder is characterized in that:

When the recording medium that comprises multilayer with a recording layer and other recording layer is carried out Ear Mucosa Treated by He Ne Laser Irradiation and recorded information, carry out record and the regeneration of detecting information at the test zone of each recording layer, derive the illuminate condition of laser, and utilize this illuminate condition that above-mentioned recording medium is carried out Ear Mucosa Treated by He Ne Laser Irradiation, with recorded information, and possess:

The detecting information record cell on an above-mentioned recording layer, makes the record condition phasic Chang of laser power and pulse width, and the record detecting information;

When the detecting information that records by above-mentioned detecting information record cell is regenerated, try to achieve the unit of the characteristic relation 3 of the position skew of characteristic relation 1, laser power and the impulse phase of laser power and β or asymmetry relation or the characteristic relation 2 of the phase correction parameter in the amplitude relation and pulse rise and fall and the phase correction parameter in impulse phase or the amplitude relation;

The 2nd detecting information record cell on above-mentioned other layer, makes the record condition phasic Chang of laser power, and the record detecting information;

The detecting information that records by above-mentioned the 2nd detecting information record cell is regenerated, try to achieve the unit of the characteristic relation 4-1 of the laser power of above-mentioned other recording layer and the phase correction parameter in impulse phase or the amplitude relation;

Utilize 3 predictions of above-mentioned characteristic relation as the unit of the characteristic relation 5 of the position skew of the pulse rise and fall of other recording layer and the phase correction parameter in impulse phase or the amplitude relation; And

Utilize above-mentioned characteristic relation 4-1 and characteristic relation 5, determine the unit of pulse width condition in above-mentioned other recording layer.

4. optical recorder is characterized in that:

When the recording medium that comprises multilayer with a recording layer and other recording layer is carried out Ear Mucosa Treated by He Ne Laser Irradiation and recorded information, carry out record and the regeneration of detecting information at the test zone of each recording layer, derive the illuminate condition of laser, and utilize this illuminate condition that above-mentioned recording medium is carried out Ear Mucosa Treated by He Ne Laser Irradiation, with recorded information, and possess:

The detecting information record cell on an above-mentioned recording layer, makes the record condition phasic Chang of laser power and pulse width, and the record detecting information;

When the detecting information that records by above-mentioned detecting information record cell is regenerated, try to achieve the unit of the characteristic relation 3 of the position skew of characteristic relation 1, laser power and the impulse phase of laser power and β or asymmetry relation or the characteristic relation 2 of the phase correction parameter in the amplitude relation and pulse rise and fall and the phase correction parameter in impulse phase or the amplitude relation;

The 2nd detecting information record cell on above-mentioned other layer, makes the record condition phasic Chang of laser power, and the record detecting information;

The detecting information that records by above-mentioned the 2nd detecting information record cell is regenerated, try to achieve the unit of the characteristic relation 4-1 of the laser power of above-mentioned other recording layer and the phase correction parameter in impulse phase or the amplitude relation;

The unit of the laser power of trying to achieve above-mentioned other recording layer and the characteristic relation 4-2 of β or asymmetry relation;

Utilize 3 predictions of above-mentioned characteristic relation as the unit of the characteristic relation 5 of the position skew of the pulse rise and fall of other recording layer and the phase correction parameter in impulse phase or the amplitude relation; And

From the optimum value of above-mentioned characteristic relation 4-2 derivation laser power, utilize above-mentioned characteristic relation 4-1 and characteristic relation 5, determine the unit of pulse width condition in above-mentioned other recording layer.

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