CN101211577A - Optical disc video recorder servo control method - Google Patents
Optical disc video recorder servo control method Download PDFInfo
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- CN101211577A CN101211577A CNA2006101479108A CN200610147910A CN101211577A CN 101211577 A CN101211577 A CN 101211577A CN A2006101479108 A CNA2006101479108 A CN A2006101479108A CN 200610147910 A CN200610147910 A CN 200610147910A CN 101211577 A CN101211577 A CN 101211577A
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Abstract
The invention relates to a method for controlling a servo of a compact disc recorder. For example, in DVD recorder and various compact disc recorders, the type of the compact disc and whether data can be recorded can be detected in the case of the installation compact disc being inserted in the device. If the compact disc is a blank compact disc which can be recorded but has no recording data, the starting position of a power correcting area (PCA) of the compact disc can be firstly searched. If the compact disc can be recorded and has recording data, but the compact disc is not finalized, the possible positions of optimal power computation operation in the PCA of the compact disc can be firstly searched such that the optimal power computation operation can be operated more rapidly before data recording operation is started. Therefore, the invention can reduce the waiting time of user, and effectively prevent the flooding phenomenon from occurring in a buffer memory.
Description
Technical area
The invention relates to the method for servo-controlling in the optical disc video recorder, refer in particular to a kind ofly in the various optical disc video recorder of DVD video tape recorder types such as (DVD-Recorder), be effectively more promptly to begin the method for servo-controlling in the optical disk recorder that best power calculates (OPC:Optimum Power Calculation) running.
Background technology
Generally, can non-volatile recording in the various optical disk recorder of the types such as DVD video tape recorder of voice data of the video data of storage high image quality and high tone quality, in can writing down 1 time DVD CDs such as (for example DVD-R/+R) under the situation of record data, as shown in Figure 1, (PCA:Power Calibration Area: power calibration area) after the zone, the operation best power calculates (OPC) running choosing the PCA that is distributed in the disk inner zone.
On the one hand, above-mentioned (PCA) zone, for example n error correction sign indicating number (ECC:Error Correction Code) is when being allocated to piece, and 1 error correction code block is made up of 16 sectors (Sector), in the running of 1 suboptimum power calculation (OPC), use 16 sectors (Sector).
And, in each above-mentioned 16 sector, as shown in Figure 1, use 16 different recording optical power values (Power1～16) each other, when recording text (Test) data, the 1st recording optical power value (Power1) is the specific light performance number that configures in advance, and the 2nd to the 16th optical power value (Power2～16) is the optical power value that has nothing in common with each other that progressively increases set by step on the basis of above-mentioned particular value.
In addition, in above-mentioned optical disk recorder, read the different text data that writes down in 16 sectors respectively, the recording optical power value of the viewpoint of the best text data of record (for example, Power2) is being set at after the best titime optical power value record data in the optical disc data zone.
On the other hand, in above-mentioned optical disk recorder, for example as shown in Figure 2, be in the state of operation 3 times when the data recording of data area (Data Area) running, apply for new data recording running, after the record position of the final text data that search is write down, calculate running from its record position best power that brings into operation in above-mentioned PCA zone.
And calculate running setting optimum power value according to above-mentioned best power after, the record position of the final text data that search is write down in above-mentioned data area writes down new data.
But, in general optical disk recorder, in case go into CD in the device interpolation, specific record position for foundation light picker search data zone, the physical sector number that for example configures in advance (PSN:PhysicalSector Number) ' OX030000 ' position, and control servo running, according to user's application after this, be the running of service data record, owing to will be again above-mentioned light picker be moved to PCA zone in the data area (Data Area), when the running that the beginning best power calculates (OPC), can not shorten required time, therefore exist the data that cushioned in the buffer memory etc. to overflow the problem of data recording running generation error.
Summary of the invention
Therefore, the present invention proposes for addressing the above problem, for example detect CD type and could record data, if can write down but not have the blank CD of record data, at first search for the interior starting position of PCA of CD,, but do not have the CD of verdict (Finalize) at last if can write down and recorded data, the interior best power of PCA of at first searching for CD calculates the possible position of running, is purpose of the present invention for the method for servo-controlling in this kind optical disk recorder is provided.
For reaching above-mentioned purpose, method of servo-controlling in the optical disk recorder of the present invention comprises: the 1st step, detect CD type and could record data, and the 2nd step, according to the above-mentioned result that detects, at first search for the PCA zone of above-mentioned CD for the foundation light picker and control servo running.
And, in above-mentioned the 1st step, when the type of CD is the CD that can write down, whether detect is the blank CD that does not have record data, in above-mentioned the 2nd step, when the above-mentioned result of detecting for above-mentioned CD is can write down and during blank CD, at first search for starting position in the PCA zone (PCA) of above-mentioned CD for the foundation light picker and control servo running and be its feature.
And, above-mentioned the 2nd step, when the above-mentioned result of detecting for above-mentioned CD be can write down but and during the CD of non-blank-white, confirm to decide on a verdict whether at last (Finalize), when not having last the verdict, at first search for possible position that best power in the PCA zone of above-mentioned CD calculates (OPC) running for the foundation light picker and control servo running and be its feature.
And, in above-mentioned the 2nd step, when the above-mentioned result of detecting for above-mentioned CD be can write down but and during the CD of non-blank-white, confirm to decide on a verdict whether at last (Finalize), when deciding on a verdict at last, at first search for above-mentioned optical disc data zone for the foundation light picker and control servo running and be its feature.
Effect of the present invention:
Method of servo-controlling in the optical disk recorder of the invention described above, for example, in the various optical disk recorder of DVD recorder types such as (DVD-Recorder), the CD insertion is being installed under the situation of device inside, detect its CD type and could record data, if can write down but not have the blank CD of record data, at first search for the interior starting position of PCA of CD, if can write down and recorded data, but the CD that does not have last decide on a verdict (Finalize), the interior best power of PCA of at first searching for CD calculates the possible position of running, thereby the best power that can more promptly begin to move before the data recording running calculates running, therefore, this is the stand-by time that shortens the user, effectively prevents the very useful invention of overflowing in buffer memory.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 and Fig. 2 are the embodiment that diagram can be carried out the DVD (DVD-R/+R) of general record,
Fig. 3 is the formation that diagram is applied to optical disk recorder of the present invention,
Fig. 4 is the operation workflow synoptic diagram of the method for servo-controlling in the relevant optical disk recorder of the present invention of diagram.
The symbol description of major part in the accompanying drawing:
10: CD 11: light picker
12: spindle motor 13: traction electric machine
14: motor driver 15: CD-ROM driver
16: channel bit scrambler 17: record digital signal processing portion
18:RF handling part 19: regeneration digital signal processing portion
20: servo 21: microcomputer
22: internal memory
Embodiment
Below, be described in detail with reference to the embodiment of accompanying drawing the method for servo-controlling in the optical disk recorder of the present invention.
At first, method of servo-controlling of the present invention can be applied to the DVD recorder various optical disk recorders of type such as (DVD-Record), for example, as shown in Figure 3, in above-mentioned optical disk recorder, comprise CD 10, light picker 11, spindle motor (SPM) 12, traction electric machine (SLM) 13, motor driver 14, CD-ROM driver 15, channel bit (CB) scrambler 16, record digital signal processing portion (DSP) 17, RF handling part 18, regeneration digital signal processing portion (DSP) 19, servo 20, microcomputer 21 and internal memory 22.
And, above-mentioned internal memory 22 can service routine internal memory (EEPROM) or flash memory Nonvolatile memories such as (Flash Memory), in above-mentioned internal memory 22, for example, with reference to Fig. 1, can storage administration the 1st～the 16th recording optical power value (Power1～16) of each different step as the aforementioned.
In addition, in above-mentioned microcomputer 21, in case the data recording running is applied, just running control is above-mentioned servo 20, after the PCA zone of choosing the DVD CDs such as (for example DVD-R/+R) that can write down once, a succession of best power of logout text data calculates (OPC) running.
On the one hand, in above-mentioned microcomputer 21, calculate (OPC) running for more promptly beginning above-mentioned best power, detect above-mentioned CD 10 type and could record data, detect the result according to it, be the PCA zone (PCA) of at first searching for above-mentioned CD or any one zone in data (Data) zone, above-mentioned servo 20 of running control elaborates to this below.
Fig. 4 is the operation workflow synoptic diagram of the method for servo-controlling in the relevant optical disk recorder of the present invention of diagram.
S10, S11, for example, when inserting when being installed to device inside writing down once DVD (for example DVD-R/+R) CD of etc.ing, in above-mentioned microcomputer 21, retrieval is with reference to the navigation information that writes down in the Lead-In Area (Lead-InArea:LIA) of CD waits etc., the type that detects CD with could record data.
S12 on the other hand, differentiates the above-mentioned result that detects, and whether the type of CD is the CD that can write down.
S13, whether if the type of CD is the CD that can write down, differentiating is blank CD again.
S14, if CD is the CD that can write down, but not when the blank CD of data area record data, in above-mentioned microcomputer 21, above-mentioned servo 20 of running control, for foundation light picker 11 search is allocated in the starting position in the PCA zone of above-mentioned disk inner, move a series of servocontrol running.
That is, can write down at above-mentioned CD but do not have under the situation of record data, user's prediction will the running of request for data record, searches for the starting position in the PCA zone of CD in advance, calculates running thereby can more promptly begin best power.
S15, in contrast, is can write down and in the data area under the situation of the CD of record data in the above-mentioned result of detecting for the type of CD, in above-mentioned microcomputer 21, for making no longer record data in above-mentioned CD, detecting whether CD decide on a verdict at last (Disc Finalize) be set.
S16 for example, when above-mentioned CD 10 is not provided with CD and decides on a verdict at last, for calculating the possible record position of (OPC) running according to best power in the above-mentioned PCA of the above-mentioned light picker 11 search zone, moves a series of servocontrol running.
S17, and, in above-mentioned microcomputer 21, or search in the starting position in above-mentioned PCA zone or the search PCA zone can the recording text data regional the time, according to whether importing record order (Record Command) standby according to the user.
S18, in contrast, not under the situation of the CD that can write down in the above-mentioned result of detecting for the type of CD, for example, be under the situation of read-only DVD (DVD-ROM) or the CD that the last verdict of CD is set, in above-mentioned microcomputer 21, the user predicts request for data regeneration running, after search optical disc data zone, according to whether importing regeneration order (Play Command) standby according to the user.
S19, in addition, in above-mentioned microcomputer 21, order according to record order or the regeneration according to user's input afterwards, move corresponding with it relevant running, thus, when request for data writes down, can prevent again light picker to be moved to the PCA zone of data area (Data Area), also can effectively shorten beginning best power calculating (OPC) and operate the needed time.
Those of ordinary skill in the present technique zone will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (5)
1. the method for servo-controlling in the optical disc video recorder is characterized in that comprising:
The 1st step, detect CD type and could record data; And
The 2nd step according to the above-mentioned result that detects, is at first searched for the power calibration area of above-mentioned CD and is controlled servo running for the foundation light picker.
2. the method for servo-controlling in the optical disc video recorder as claimed in claim 1 is characterized in that:
In above-mentioned the 1st step, whether when the type of CD is the CD that can write down, detecting is the blank CD that does not have record data.
3. the method for servo-controlling in the optical disc video recorder as claimed in claim 2 is characterized in that:
In above-mentioned the 2nd step, when the above-mentioned result of detecting was to write down for above-mentioned CD and is blank CD, servo running was controlled in the starting position of at first searching for for the foundation light picker in the power calibration area of above-mentioned CD.
4. as the method for servo-controlling in the claim 2 described optical disc video recorder, it is characterized in that:
In above-mentioned the 2nd step, when the above-mentioned result of detecting for above-mentioned CD be can write down but and during the CD of non-blank-white, confirm whether CD decides on a verdict at last, when not having last the verdict, at first search for the possible position that best power in the power calibration area of above-mentioned CD calculates running for the foundation light picker and control servo running.
5. the method for servo-controlling in the optical disc video recorder as claimed in claim 2 is characterized in that:
In above-mentioned the 2nd step, when the above-mentioned result of detecting for above-mentioned CD be can write down but and during the CD of non-blank-white, confirm whether decide on a verdict at last, when deciding on a verdict at last, at first search for above-mentioned optical disc data zone for the foundation light picker and control servo running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101479108A CN101211577A (en) | 2006-12-25 | 2006-12-25 | Optical disc video recorder servo control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101479108A CN101211577A (en) | 2006-12-25 | 2006-12-25 | Optical disc video recorder servo control method |
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| Publication Number | Publication Date |
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| CN101211577A true CN101211577A (en) | 2008-07-02 |
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| CNA2006101479108A Pending CN101211577A (en) | 2006-12-25 | 2006-12-25 | Optical disc video recorder servo control method |
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| CN (1) | CN101211577A (en) |
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2006
- 2006-12-25 CN CNA2006101479108A patent/CN101211577A/en active Pending
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Open date: 20080702 |