CN1226727C - Method for determining recording power of data recorder - Google Patents
Method for determining recording power of data recorder Download PDFInfo
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- CN1226727C CN1226727C CN 02146913 CN02146913A CN1226727C CN 1226727 C CN1226727 C CN 1226727C CN 02146913 CN02146913 CN 02146913 CN 02146913 A CN02146913 A CN 02146913A CN 1226727 C CN1226727 C CN 1226727C
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Abstract
The present invention relates to a method for determining writing and recording power of a data recording carrier of a data recording device. Firstly, the optimal power of the inner circle part and the outer circle part of the record carrier is detected so as to respectively obtain the optimal writing and recording power of the inner circle and the optimal writing and recording power of the outer circle; thus, the data recording device can decide the writing and recording power from the inner circle to the outer circle according to the optimal writing and recording power of the inner circle and the optimal writing and recording power of the outer circle; or the writing and recording power of the data recording device of the data recording device is decided according to the optimal writing and recording power of the inner circle, the optimal writing and recording power of the outer circle and the time that the lowest writing and recording power of the data recording device is increased to the maximum writing and recording power in average.
Description
(1) technical field
What the invention relates to a kind of data recording equipment writes the record power decision method, and be particularly to a kind of can be according to the data recording equipment of writing record power of the inner ring optimum writing capability of record carrier and outer ring optimum writing capability determination data pen recorder write the record power decision method.
(2) background technology
In recent years, in the evolution of data storing media, optical store medium is situated between, and has played the part of a very consequence as discs (CD), recordable CD (CD-R, CD-RW) etc.The rise that optical store medium is situated between has replaced the data storing kenel of low capacity, heaviness in the past, makes data to write down and to back up in high power capacity and the frivolous disc that is easy to carry about with one.
Fig. 1 is the block schematic diagram of a CD-ROM drive servo-drive system.Optical read head 11 is obtained reflected signal by disc 10 after launching laser light, this signal via radio frequency IC12 amplify with handle after, focus error signal (FE) and tracking error signal (TE) and other related data are sent into digital signal processor (DSP) and microprocessor (Micro Processor) 13 with signal.
In the burning process, data are to pass through integrated drive electronic circuit (Integrated Drive Electronics by hard disk or cd-ROM earlier, IDE) interface is sent to main frame, (Small Computer System Interface SCSI) is sent in the memory buffer (Buffer Memory) of burning CD-ROM drive by integrated drive electronic circuit interface or minicomputer system interface again.At last, the burning CD-ROM drive is burnt to the data that are temporarily stored in the memory buffer on the recordable CD.
In known techniques, the burning CD-ROM drive is with subregion Constant Linear Velocity pattern (zone constant linearvelocity mode; ZCLV mode) in the process of burning recordable CD, the burning CD-ROM drive normally only gradually is promoted to the maximum replication rate of burning CD-ROM drive or user from the replication rate ordered corresponding to the power of each time section with the replication rate of burning discs according to prestoring in the optimum writing capability of inner ring and this CD writers database.
Fig. 2 is the situation of change of recording power in the different time section when showing in the known techniques with the burning of ZCLV pattern, and as shown in the figure, in the interval of time 0 ~ t1, replication rate is 16 times of speed; And in the interval of time t1 ~ t2, it is 20 times of speed that replication rate is promoted by 16 times of speed; In the interval of time t2 ~ t3, it is 24 times of speed that replication rate is promoted by 20 times of speed; And after the time t3, it is 32 times of speed of maximum replication rate of burning CD-ROM drive that replication rate is promoted by 24 times of speed, and keeps this replication rate to burning always and finish.
The optical read head of burning CD-ROM drive is one of important key of decision burning success or failure to the record power (laser optical power) of writing of record carrier.In the prior art method, writing record power is only according to inner ring optimum writing capability (the Optimum Power Calibration of record carrier; OPC) decide corresponding to the difference power of each time section with prior store recording different label record carriers in database.Replication rate with Fig. 2 is an example, supposes that the inner round portion of an A label record carrier detects (Optimum Power Calibration through best power; OPC) afterwards, obtaining its inner ring optimum writing capability is P0, and the difference power of 20 times of speed and 16 times of speed is Δ P1 when writing down burning A label record carrier in the database; The difference power of 24 times of speed and 16 times of speed is Δ P2; And the difference power of 32 times of speed and 16 times of speed is Δ P3.Therefore, when burning CD-ROM drive during with 16 times of fast burning A label record carriers (0 to t1 time section), it writes record power is P0; During with 20 times of fast burning A label record carriers (t1 to t2 time section), it writes record power is P0+ Δ P1; During with 24 times of fast burning A label record carriers (t2 to t3 time section), it writes record power is P0+ Δ P2; And during with 32 times of fast burning A label record carriers (t3's is back), it writes record power is P0+ Δ P3.
In addition, Fig. 3 shows the variation example of the replication rate of another known burning CD-ROM drive, as shown in the figure, be promoted to by minimum replication rate in the interval of the time 0 ~ t4 of high replication rate at the burning CD-ROM drive, it is 32 times of speed of maximum replication rate of burning CD-ROM drive that replication rate is promoted fifty-fifty by 16 times of speed, and keeps this replication rate to burning always and finish.
Yet, the problem that often runs in the known techniques is because the quality of each record carrier also can not be consistent, for instance, if the inhomogeneous or concentration of the dyestuff of Internal and external cycle is not simultaneously in every batch record carrier or the same record carrier, only according to the optimum writing capability difference of inner ring decide from the inside to the outside write record power, just can record power gap to some extent with required the writing of reality, and then the situation that causes easily writing the record failure takes place.And known techniques also must be made label and different disc builds on each time section (t1, t2, t3 with making or have much ado in advance at difference as shown in Figure 2 ...) time write record power or difference power (Δ P1, Δ P2, Δ P3 ...) in database.
(3) summary of the invention
In view of this, what fundamental purpose of the present invention provided a kind of pen recorder writes the record power decision method, and it is dynamically to write record power according to what the inner ring optimum writing capability of record carrier and outer ring optimum writing capability decided data recording equipment.
In order to reach above-mentioned purpose of the present invention, can realize by the record power decision method of writing of data recording equipment provided by the present invention.
A kind of data recording equipment according to an aspect of the present invention write the record power decision method, be used for a record carrier, this record carrier is divided into plurality of sections according to a plurality of record times speed of writing, each this write the record section and write doubly one of speed of record corresponding to this, and this plurality of sections also comprises inner ring section and an outmost turns section, this is write the record power decision method and comprises the following step at least: (a) with this record carrier corresponding to inner ring write record doubly this inner ring section of speed carry out one first best power and detect, thereby obtain inner ring optimum writing capability; (b) this record carrier is write this doubly fast outmost turns section of record corresponding to an outmost turns and carry out the detection of one second best power, thereby obtain an outmost turns optimum writing capability; And (c) reference frame when writing record doubly speed is write record power as this record carrier decision with this of this inner ring optimum writing capability, this outmost turns optimum writing capability and each this plurality of sections correspondence.
When this record carrier was writable CD, this outer ring is meant drew zone (Lead-out Area), that is as institute's standard in the specifications, starts at radius 11.6cm to the scope of radius 11.8cm by the center.
A kind of data recording equipment is according to a further aspect of the invention write in the record process one a record carrier is write the record power decision method, this data recording equipment has the minimum doubly speed of record of writing at the inner ring section of this record carrier, this data recording equipment has the highest doubly speed of record of writing at the outmost turns section of this record carrier, and this data recording equipment by this minimum write record doubly speed be promoted to this and the highlyest write record doubly time of speed is Δ t, it is characterized in that, this method comprises the following steps: that (a) carries out one first best power with this inner ring section of this record carrier and detect, thereby obtains inner ring optimum writing capability P1; (b) this outmost turns section with this record carrier carries out the detection of one second best power, thereby obtains an outmost turns optimum writing capability P2; And (c) this data recording equipment is as basis with this P1, this P2, this time point t and this time Δ t in the t optimum writing capability Pt of a time point t.
Wherein, data recording equipment can be the burning CD-ROM drive, and record carrier can be a recordable CD.
Be clearer understanding purpose of the present invention, characteristics and advantage, below in conjunction with accompanying drawing to of the present invention preferable
Embodiment is elaborated.
(4) description of drawings
Fig. 1 is the block schematic diagram of a CD-ROM drive servo-drive system.
Fig. 2 shows the variation example of the replication rate of known burning CD-ROM drive.
Fig. 3 shows the variation example of the replication rate of another known burning CD-ROM drive.
Fig. 4 is the process flow diagram of writing the record power decision method that shows according to the data recording equipment of first embodiment of the invention.
Fig. 5 is the variation synoptic diagram of writing record power that shows according to first embodiment of the invention.
Fig. 6 is the process flow diagram of writing the record power decision method that shows according to the data recording equipment of second embodiment of the invention.
Fig. 7 is the variation synoptic diagram of writing record power that shows according to second embodiment of the invention.
(5) embodiment
Fig. 4 is the process flow diagram of writing the record power decision method that shows according to the data recording equipment of first embodiment of the invention.The record power decision method of writing of the data recording equipment of the embodiment of the invention may be implemented on the burning CD-ROM drive (data recording equipment).
At first, as step S40, carry out best power at the inner round portion of record carrier and detect, thereby obtain an inner ring optimum writing capability.Afterwards, as step S42, carry out best power at the outer ring part of record carrier and detect, thereby obtain an outer ring optimum writing capability.Wherein, record carrier can be a recordable CD.
At last, shown in step S44, with this inner ring optimum writing capability and outer ring optimum writing capability as this data recording equipment decision to the inner ring of this record carrier to the outer ring write record power the time reference frame.
With Fig. 5 is example, the tentation data pen recorder has four and records the zone with writing of 16 times of speed, 20 times of speed, 24 times of speed and 32 times of speed respectively when carrying out burning according to the time, and the inner round portion of record carrier is carried out best power, and to detect resulting inner ring optimum writing capability be P1, and the outer ring part of record carrier is carried out best power, and to detect resulting outer ring optimum writing capability be P2.
Therefore, the reference frame of power when this data recording equipment is write record as decision to this record carrier with this inner ring optimum writing capability and outer ring optimum writing capability, and under subregion Constant Linear Velocity pattern, can calculate according to following embodiment:
Certain section is write record power=inner ring optimum writing capability+(inside and outside circle optimum writing capability is poor) * [(this section is write writing of record times speed-inner ring and recorded doubly speed)/(finally write a record times speed-inner ring and write record times speed)]
Therefore in the present embodiment, be that the record speed of writing of P2 and inner ring is 16 times of speed if the inner ring optimum writing capability is P1 and outer ring optimum writing capability, then the record power of writing of writing the record zone of corresponding 20 times of speed is made as P1+ (P2-P1) * ((20-16)/(32-16)); The record power of writing of writing the record zone of corresponding 24 times of speed is made as P1+ (P2-P1) * ((24-16)/(32-16)); And the record power of writing of writing the record zone of corresponding 32 times of speed to be made as the outer ring optimum writing capability be P2.
Fig. 6 is the process flow diagram of writing the record power decision method that shows according to the data recording equipment of second embodiment of the invention.The record power decision method of writing of the data recording equipment of the embodiment of the invention may be implemented on the burning CD-ROM drive (data recording equipment).
At first, as step S60, carry out best power at the inner round portion of record carrier and detect, thereby obtain an inner ring optimum writing capability.Afterwards, as step S62, carry out best power at the outer ring part of record carrier and detect, thereby obtain an outer ring optimum writing capability.Wherein, record carrier can be a recordable CD.
At last, as step S64, be promoted to the highest time of writing record speed according to data recording equipment by the minimum record speed of writing, and this inner ring optimum writing capability, this outer ring optimum writing capability as this data recording equipment decision to the inner ring of this record carrier to the outer ring write record power the time reference frame.
With Fig. 7 is example, the tentation data pen recorder is t4 (0 ~ t4) by the time that minimum replication rate (for example 16 times of speed) is promoted to the highest replication rate (32 times of speed) fifty-fifty, and the inner round portion of record carrier is carried out best power, and to detect resulting inner ring optimum writing capability be P1, and the outer ring part of record carrier is carried out best power, and to detect resulting outer ring optimum writing capability be P2.
Therefore, according to data recording equipment by minimum write record speed be promoted to the highest average specific data pen recorder of time of writing record speed in this lifting time each time point write record power.In this example, in 0 to t4 time, the record power of writing of each time point is to be directly proportional with this time point shared ratio in the whole lifting time.
Arbitrary time point t is an example in the record process (0-t4) to write, and the record power (Pt) of writing of time point t is made as P1+ (P2-P1) * (t/t4).Wherein, to write record power be P1 (that is during burning at the beginning, write record power and be made as P1) to inner ring; It is P2 (that is be promoted to the highlyest when writing record speed (t4) when data recording equipment, then write and record power and be made as P2) that record power is write in the outer ring.
Therefore, write the record power decision method by data recording equipment provided by the present invention, can be dynamically write in each according to the inner ring optimum writing capability of record carrier and outer ring optimum writing capability determination data pen recorder simultaneously and write record power when recording section, be not as known techniques only according to the data that prestore in the database, thereby can reduce the quality problem of different recording carrier and the burning failure problem that causes.
Though the present invention discloses as above with preferred embodiment, yet it is not in order to limit the present invention, any person skilled in the art person, without departing from the spirit and scope of the present invention, all equivalence changes or equivalence is replaced when making, for example according to the algorithm of respectively writing the used power of record section of inner ring optimum writing capability and outer ring optimum writing capability gained.Therefore protection scope of the present invention is worked as with being as the criterion that claim was defined.
Claims (10)
1. a data recording equipment writes the record power decision method, be used for a record carrier, this record carrier is divided into plurality of sections according to a plurality of record times speed of writing, each this write the record section and write doubly one of speed of record corresponding to this, and this plurality of sections also comprises inner ring section and an outmost turns section, and this is write the record power decision method and comprises the following step at least:
(a) with this record carrier corresponding to inner ring write record doubly this inner ring section of speed carry out one first best power and detect, thereby obtain inner ring optimum writing capability;
(b) this record carrier is write this doubly fast outmost turns section of record corresponding to an outmost turns and carry out the detection of one second best power, thereby obtain an outmost turns optimum writing capability; And
Reference frame when (c) writing record doubly speed is write record power as this record carrier decision with this of this inner ring optimum writing capability, this outmost turns optimum writing capability and each this plurality of sections correspondence.
2. the method for claim 1, it is characterized in that, be used for one and mark off a plurality of subregion Constant Linear Velocity patterns of writing the record section, each this write the record section and write doubly speed of record corresponding to one, wherein, one write the record section according to above-mentioned steps (a) to (c) gained write the record power be:
Above-mentioned inner ring optimum writing capability+(above-mentioned inside and outside circle optimum writing capability is poor) * [(this write the record section write record times speed-inner ring write doubly speed of record)/(finally write record times speed-inner ring write doubly speed of record)].
3. the method for claim 1 is characterized in that, described outer ring is meant the zone of drawing of described record carrier.
4. the method for claim 1 is characterized in that, this data recording equipment is a burning CD-ROM drive.
5. the method for claim 1 is characterized in that, this record carrier is a recordable CD.
6. a data recording equipment is write in the record process one a record carrier is write the record power decision method, this data recording equipment has the minimum doubly speed of record of writing at the inner ring section of this record carrier, this data recording equipment has the highest doubly speed of record of writing at the outmost turns section of this record carrier, and this data recording equipment by this minimum write record doubly speed be promoted to this and the highlyest write record doubly time of speed is Δ t, it is characterized in that this method comprises the following steps:
(a) this inner ring section of this record carrier is carried out one first best power and detect, thereby obtain inner ring optimum writing capability P1;
(b) this outmost turns section with this record carrier carries out the detection of one second best power, thereby obtains an outmost turns optimum writing capability P2; And
(c) this data recording equipment is as basis with this P1, this P2, this time point t and this time Δ t in the t optimum writing capability Pt of a time point t.
7. method as claimed in claim 6 is characterized in that, described write arbitrary time point t in the record process to write record power be P1+ (P2-P1) * (t/ Δ t).
8. method as claimed in claim 6 is characterized in that, described outer ring is meant the zone of drawing of described record carrier.
9. method as claimed in claim 6 is characterized in that, this data recording equipment is a burning CD-ROM drive.
10. method as claimed in claim 6 is characterized in that, this record carrier is a recordable CD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02146913 CN1226727C (en) | 2002-10-21 | 2002-10-21 | Method for determining recording power of data recorder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02146913 CN1226727C (en) | 2002-10-21 | 2002-10-21 | Method for determining recording power of data recorder |
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| CN1492413A CN1492413A (en) | 2004-04-28 |
| CN1226727C true CN1226727C (en) | 2005-11-09 |
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| CN 02146913 Expired - Fee Related CN1226727C (en) | 2002-10-21 | 2002-10-21 | Method for determining recording power of data recorder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101123095B (en) * | 2006-08-11 | 2012-07-18 | 鸿富锦精密工业（深圳）有限公司 | Best power correction method and information recording device |
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| CN1492413A (en) | 2004-04-28 |
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Effective date of registration: 20100420 Address after: Taiwan province Taipei City Beitou District China meritorious Street No. 76 5 floor Patentee after: Pegatron Corporation Address before: 000000 Taiwan province Beitou District Taipei City Road No. 150 4 floor Patentee before: Huashuo Computer Co., Ltd. |
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Granted publication date: 20051109 Termination date: 20121021 |