CN1251194C - Writing-speed regulating method for data recorder - Google Patents
Writing-speed regulating method for data recorder Download PDFInfo
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- CN1251194C CN1251194C CN 02118660 CN02118660A CN1251194C CN 1251194 C CN1251194 C CN 1251194C CN 02118660 CN02118660 CN 02118660 CN 02118660 A CN02118660 A CN 02118660A CN 1251194 C CN1251194 C CN 1251194C
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- absolute time
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- speed
- ditch groove
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Abstract
The present invention relates to a writing-speed regulating method for a data recorder. The method has the following steps: firstly, writing in a record carrier at a first writing speed; then, calculating the error rate of absolute time codes in a pre-etched groove according to error codes appeared in the absolute time codes in the pre-etched groove recorded in the record carrier; subsequently, decreasing or increasing the writing speed corresponding to the error rate of the absolute time codes in the pre-etched groove until the end of writing.
Description
(1) technical field
The relevant a kind of data recording equipment of the present invention write the record speed adjustment method, and be particularly to a kind of can be according to (the Absolute Time In Pregroove of absolute time code in the prerecording ditch groove that writes down in the record carrier, ATIP) error code that occurs in, calculate absolute time code error rate (ATIP Error Rate in the prerecording ditch groove, ATER), and come according to absolute time code error rate in the prerecording ditch groove dynamic setting data pen recorder the record speed of writing write the record speed adjustment 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 CD-RW discsCD-RW (CD), recordable CD sheet (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 video disc that is easy to carry about with one.
Fig. 1 is the block schematic diagram of a CD-ROM device servo-drive system.Optical read head 11 is obtained reflected signal from video disc 10, signal by radio frequency IC12 amplify with handle after, focus error signal (FE) and tracking error signal (TE) and other related datas are sent into digital signal processor (DSP) and microprocessor (MicroProcessor) 13 with signal.
Microprocessor 13 is through after the computing, can obtain each servo drive signal, send each servo control mechanism (Servo) (focus servo 14, follow rail and rail searching servo 15 and Spindle Motor servo 16) respectively to, to control each controlled driving element (focus actuator 17, follow rail actuator 18, transportation (Sled) motor 19 and Spindle Motor 20), guarantee data read or write the correctness of record.
In the process of recordable optical disc machine burning record recordable CD sheet, the recordable optical disc machine normally is promoted to the maximum replication rate of recordable optical disc machine or the replication rate that the user makes by oneself according to default time interval with the replication rate of recordable optical disc sheet gradually.Fig. 2 shows the variation of the replication rate of known recordable optical disc machine, 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 t2, it is 32 times of speed of maximum replication rate of recordable optical disc machine that replication rate is promoted by 24 times of speed, and keeps this replication rate to burning always and finish.
The recordable CD sheet utilizes laser to carve a prerecording ditch groove (Pregroove) in advance in manufacture process, swing signal recorded in the prerecording ditch groove (Wobble Signal) and the interior absolute time code of prerecording ditch groove.Absolute time code can be used for writing when the guided optical read head correctly follows rail and guarantees recording signal the stable of record speed in the prerecording ditch groove.When the laser beam in the recordable optical disc machine begins the burning signal, it just can carry out according to this prerecording ditch groove, and keep the stable record speed of writing according to the frequency (swinging signal and prerecording ditch groove interior absolute time code) of record wherein, finally then replace this prerecording ditch groove with the signal data rail.In the signal data of writing record, then comprise timing code (Time Code), when providing that compact disk read only memory is machine-readable to be got as rotating speed control according to and follow the rail foundation during laser beam reading of data.
Because data are to be stored in succession in the CD-RW discsCD-RW, therefore, the burning of recordable optical disc machine action must continuously and can not be interrupted.As long as wherein any one link is interrupted, will cause the recordable optical disc machine to write the record data failure, and then the situation that causes CD-RW discsCD-RW to use.
The error code that occurs in the absolute time code in the prerecording ditch groove that writes down in the recordable CD sheet is to cause the recordable optical disc machine to write one of reason of record data failure.Because absolute time code is to be used for writing when the guided optical read head correctly follows rail and guarantees recording signal the stable of record speed in the prerecording ditch groove, therefore, when absolute time code in the prerecording ditch groove in the prerecording ditch groove make a mistake the sign indicating number situation the time, then can cause the recordable optical disc machine to write the record data deviation, make data can't correctly read, also or can directly cause the recordable optical disc machine to write the record data failure when serious in the future.
Solve the make a mistake situation of sign indicating number of absolute time code in the prerecording ditch groove, must bring in the optical read head action control of further aiming at and focus by disc player is servo usually.Yet, in fact also lack actual mechanism and adjust controlled driving element and deal with different recordable CD products, write record data failure probability and promote burning quality with effective reduction recordable optical disc machine.
(3) summary of the invention
In view of this, fundamental purpose of the present invention provide a kind of can be according to the error code that occurs in the absolute time code in the prerecording ditch groove that writes down in the record carrier, calculate absolute time code error rate in the prerecording ditch groove, and the record speed of writing of coming dynamic setting data pen recorder according to absolute time code error rate in the prerecording ditch groove, and continue to write the record record carrier to downgrade or to increase speed, and then promote burning quality write the record speed adjustment method.
In order to reach described purpose of the present invention, can adopt the record speed adjustment method of writing of data recording equipment provided by the present invention to realize.
According to the present invention, at first, write record speed with first and write the record record carrier, then,, calculate absolute time code error rate in the prerecording ditch groove according to the error code that occurs in the absolute time code in the prerecording ditch groove that writes down in the record carrier; If the absolute time code error rate is greater than a preset value in the prerecording ditch groove, then writes record speed and come down to second and write record speed first; Afterwards, continue to write record speed and write this record carrier of record with second.
In addition, if the absolute time code error rate is not greater than preset value in the prerecording ditch groove behind a Preset Time, then writing with first that record speed increases is the 3rd to write record speed, and writes record speed with the 3rd and write the record record carrier.
Wherein, data recording equipment can be the recordable optical disc machine, and record carrier can be the recordable CD sheet.
For further specifying purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is the block schematic diagram of a CD-ROM device servo-drive system.
Fig. 2 shows the variation of the replication rate of known recordable optical disc machine.
Fig. 3 is the process flow diagram of writing the record speed adjustment method that shows according to the data recording equipment of the embodiment of the invention.
Fig. 4 is the variation example that shows according to the replication rate of the embodiment of the invention.
(5) embodiment
Fig. 3 is the process flow diagram of demonstration according to the replication rate method of adjustment of the recordable optical disc machine of the embodiment of the invention.With reference to figure 3, will be described in more detail in down the embodiment of the invention.
According to the present invention, the record speed adjustment method of writing of the data recording equipment of the embodiment of the invention may be implemented on the recordable optical disc machine (data recording equipment).At first, as step S30, the recordable optical disc machine begins burning recordable CD sheet (record carrier) with one first burning (writing record) speed.Simultaneously, as step S31,, calculate absolute time code error rate in the prerecording ditch groove according to the error code that occurs in the absolute time code in the prerecording ditch groove that writes down in the record carrier.
Then, as step S32, judge that whether the absolute time code error rate is greater than a preset value in the prerecording ditch groove.When the absolute time code error rate is greater than preset value in the prerecording ditch groove (step S32 is), then as step S33, first replication rate of recordable optical disc machine is come down to one second replication rate, and as step S34, again according to the error code that occurs in the absolute time code in the prerecording ditch groove that writes down in the record carrier, calculate absolute time code error rate in this prerecording ditch groove.Afterwards, the recordable optical disc machine just can continue burning recordable CD sheet by this second replication rate.
On the other hand, if the absolute time code error rate is not greater than this preset value (step S32 not) in this prerecording ditch groove, then as step S35, judge whether to have passed through a Preset Time after.If do not surpass Preset Time, then get back to step S31 and continue to calculate absolute time code error rate in this prerecording ditch groove.And if surpassed Preset Time, then as step S36, it is one the 3rd replication rate that first replication rate is increased, and as step S34, again according to the error code that occurs in the absolute time code in the prerecording ditch groove that writes down in the record carrier, calculate absolute time code error rate in this prerecording ditch groove.Afterwards, the recordable optical disc machine just can continue burning recordable CD sheet by this 3rd replication rate.
Next, describe for an example, Fig. 4 is the variation example that shows according to the replication rate of the embodiment of the invention.
At the beginning, the recordable optical disc machine is with the replication rate recordable optical disc sheet of 16 times of speed, in the burning process of 16 times of speed, because the absolute time code error rate does not surpass preset value in the prerecording ditch groove, then the replication rate of recordable optical disc machine increases to 20 times of speed, and the absolute time code error rate is recomputated in the prerecording ditch groove.Then after 6 minutes, beginning is with the replication rate recordable optical disc sheet of 20 times of speed for the recordable optical disc machine.
After, in the burning process of 20 times of speed, because the absolute time code error rate surpasses preset value in the prerecording ditch groove, then the replication rate of recordable optical disc machine increases to 24 times of speed, and the absolute time code error rate is recomputated in the prerecording ditch groove.Then after 16 minutes, beginning is with the replication rate recordable optical disc sheet of 24 times of speed for the recordable optical disc machine.
Equally, in the burning process of 24 times of speed, because the absolute time code error rate does not surpass preset value in the prerecording ditch groove, then the replication rate of recordable optical disc machine increases to 32 times of speed, and the absolute time code error rate is recomputated in the prerecording ditch groove.Then after 35 minutes, beginning is with the replication rate recordable optical disc sheet of 32 times of speed for the recordable optical disc machine.
When recordable optical disc machine during with the replication rate recordable optical disc sheet of 32 times of speed, because the error code that occurs in the absolute time code in the prerecording ditch groove that writes down in the record carrier increases successively, the absolute time code error rate surpasses preset value in the prerecording ditch groove when 40 minutes time, then the replication rate of recordable optical disc machine is downgraded back 24 times of speed, and the absolute time code error rate is recomputated in the prerecording ditch groove.Then, the recordable optical disc machine is then after 40 minutes, with the replication rate recordable optical disc sheet of 24 times of speed.
Be noted that, if the error code that occurs in the absolute time code in the prerecording ditch groove that writes down in 40 minutes the back record carrier still continues to increase, when causing the interior absolute time code error rate of prerecording ditch groove to surpass preset value, then can downgrade the replication rate of recordable optical disc machine once more.
Certainly, those of ordinary skill in the art 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 (6)
- A data recording equipment write the record speed adjustment method, it is characterized in that this method comprises the following steps:Write record speed with one first and write record one record carrier;According to the error code that occurs in the absolute time code in the prerecording ditch groove that writes down in this record carrier, calculate absolute time code error rate in the prerecording ditch groove; If the absolute time code error rate is greater than a preset value in this prerecording ditch groove, then this first is write record speed and come down to one second and write record speed; AndWith this second write record speed continue to write the record this record carrier.
- 2. the method for claim 1 is characterized in that, also comprises recomputating absolute time code error rate in this prerecording ditch groove.
- 3. the method for claim 1, it is characterized in that, comprise that also then first to write that record speed increases be one the 3rd to write record speed with this, and write record speed with the 3rd and write this record carrier of record if the absolute time code error rate is not greater than this preset value in this prerecording ditch groove behind the Preset Time.
- 4. method as claimed in claim 3 is characterized in that, also comprises recomputating absolute time code error rate in this prerecording ditch groove.
- 5. the method for claim 1 is characterized in that, this data recording equipment is a recordable optical disc machine.
- 6. the method for claim 1 is characterized in that, this record carrier is the recordable CD sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02118660 CN1251194C (en) | 2002-04-24 | 2002-04-24 | Writing-speed regulating method for data recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02118660 CN1251194C (en) | 2002-04-24 | 2002-04-24 | Writing-speed regulating method for data recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1453770A CN1453770A (en) | 2003-11-05 |
| CN1251194C true CN1251194C (en) | 2006-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02118660 Expired - Fee Related CN1251194C (en) | 2002-04-24 | 2002-04-24 | Writing-speed regulating method for data recorder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1251194C (en) |
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2002
- 2002-04-24 CN CN 02118660 patent/CN1251194C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1453770A (en) | 2003-11-05 |
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Owner name: HESHUO JOINT SCIENCE AND TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HUASHUO COMPUTER CO LTD Effective date: 20100420 |
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Free format text: CORRECT: ADDRESS; FROM: 000000 NO.150, LIDE ROAD, BEITOU DISTRICT, TAIPEI CITY, TAIWAN PROVINCE TO:5/F, NO.76, LIGONG STREET, BEITOU DISTRICT, TAIPEI CITY, TAIWAN PROVINCE, CHINA |
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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 Patentee before: Huashuo Computer Co., Ltd. |
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Granted publication date: 20060412 Termination date: 20150424 |
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